qt/qt3d/src/3rdparty/imgui/imgui_draw.cpp

Revision control

++ // dear imgui, v1.91.0
++ // (drawing and font code)
++
++ /*
++
++ Index of this file:
++
++ // [SECTION] STB libraries implementation
++ // [SECTION] Style functions
++ // [SECTION] ImDrawList
++ // [SECTION] ImTriangulator, ImDrawList concave polygon fill
++ // [SECTION] ImDrawListSplitter
++ // [SECTION] ImDrawData
++ // [SECTION] Helpers ShadeVertsXXX functions
++ // [SECTION] ImFontConfig
++ // [SECTION] ImFontAtlas
++ // [SECTION] ImFontAtlas glyph ranges helpers
++ // [SECTION] ImFontGlyphRangesBuilder
++ // [SECTION] ImFont
++ // [SECTION] ImGui Internal Render Helpers
++ // [SECTION] Decompression code
++ // [SECTION] Default font data (ProggyClean.ttf)
++
++ */
++
++ #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
++ #define _CRT_SECURE_NO_WARNINGS
++ #endif
++
++ #ifndef IMGUI_DEFINE_MATH_OPERATORS
++ #define IMGUI_DEFINE_MATH_OPERATORS
++ #endif
++
++ #include "imgui.h"
++ #ifndef IMGUI_DISABLE
++ #include "imgui_internal.h"
++ #ifdef IMGUI_ENABLE_FREETYPE
++ #include "misc/freetype/imgui_freetype.h"
++ #endif
++
++ #include <stdio.h> // vsnprintf, sscanf, printf
++
++ // Visual Studio warnings
++ #ifdef _MSC_VER
++ #pragma warning (disable: 4127) // condition expression is constant
++ #pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
++ #pragma warning (disable: 4996) // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
++ #pragma warning (disable: 26451) // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
++ #pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3). [MSVC Static Analyzer)
++ #endif
++
++ // Clang/GCC warnings with -Weverything
++ #if defined(__clang__)
++ #if __has_warning("-Wunknown-warning-option")
++ #pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: unknown warning group 'xxx' // not all warnings are known by all Clang versions and they tend to be rename-happy.. so ignoring warnings triggers new warnings on some configuration. Great!
++ #endif
++ #pragma clang diagnostic ignored "-Wunknown-pragmas" // warning: unknown warning group 'xxx'
++ #pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast // yes, they are more terse.
++ #pragma clang diagnostic ignored "-Wfloat-equal" // warning: comparing floating point with == or != is unsafe // storing and comparing against same constants ok.
++ #pragma clang diagnostic ignored "-Wglobal-constructors" // warning: declaration requires a global destructor // similar to above, not sure what the exact difference is.
++ #pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
++ #pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" // warning: zero as null pointer constant // some standard header variations use #define NULL 0
++ #pragma clang diagnostic ignored "-Wcomma" // warning: possible misuse of comma operator here
++ #pragma clang diagnostic ignored "-Wreserved-id-macro" // warning: macro name is a reserved identifier
++ #pragma clang diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function // using printf() is a misery with this as C++ va_arg ellipsis changes float to double.
++ #pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
++ #pragma clang diagnostic ignored "-Wreserved-identifier" // warning: identifier '_Xxx' is reserved because it starts with '_' followed by a capital letter
++ #pragma clang diagnostic ignored "-Wunsafe-buffer-usage" // warning: 'xxx' is an unsafe pointer used for buffer access
++ #elif defined(__GNUC__)
++ #pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
++ #pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
++ #pragma GCC diagnostic ignored "-Wdouble-promotion" // warning: implicit conversion from 'float' to 'double' when passing argument to function
++ #pragma GCC diagnostic ignored "-Wconversion" // warning: conversion to 'xxxx' from 'xxxx' may alter its value
++ #pragma GCC diagnostic ignored "-Wstack-protector" // warning: stack protector not protecting local variables: variable length buffer
++ #pragma GCC diagnostic ignored "-Wclass-memaccess" // [__GNUC__ >= 8] warning: 'memset/memcpy' clearing/writing an object of type 'xxxx' with no trivial copy-assignment; use assignment or value-initialization instead
++ #endif
++
++ //-------------------------------------------------------------------------
++ // [SECTION] STB libraries implementation (for stb_truetype and stb_rect_pack)
++ //-------------------------------------------------------------------------
++
++ // Compile time options:
++ //#define IMGUI_STB_NAMESPACE ImStb
++ //#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
++ //#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
++ //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
++ //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
++
++ #ifdef IMGUI_STB_NAMESPACE
++ namespace IMGUI_STB_NAMESPACE
++ {
++ #endif
++
++ #ifdef _MSC_VER
++ #pragma warning (push)
++ #pragma warning (disable: 4456) // declaration of 'xx' hides previous local declaration
++ #pragma warning (disable: 6011) // (stb_rectpack) Dereferencing NULL pointer 'cur->next'.
++ #pragma warning (disable: 6385) // (stb_truetype) Reading invalid data from 'buffer': the readable size is '_Old_3`kernel_width' bytes, but '3' bytes may be read.
++ #pragma warning (disable: 28182) // (stb_rectpack) Dereferencing NULL pointer. 'cur' contains the same NULL value as 'cur->next' did.
++ #endif
++
++ #if defined(__clang__)
++ #pragma clang diagnostic push
++ #pragma clang diagnostic ignored "-Wunused-function"
++ #pragma clang diagnostic ignored "-Wmissing-prototypes"
++ #pragma clang diagnostic ignored "-Wimplicit-fallthrough"
++ #pragma clang diagnostic ignored "-Wcast-qual" // warning: cast from 'const xxxx *' to 'xxx *' drops const qualifier
++ #endif
++
++ #if defined(__GNUC__)
++ #pragma GCC diagnostic push
++ #pragma GCC diagnostic ignored "-Wtype-limits" // warning: comparison is always true due to limited range of data type [-Wtype-limits]
++ #pragma GCC diagnostic ignored "-Wcast-qual" // warning: cast from type 'const xxxx *' to type 'xxxx *' casts away qualifiers
++ #endif
++
++ #ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
++ #ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in another compilation unit
++ #define STBRP_STATIC
++ #define STBRP_ASSERT(x) do { IM_ASSERT(x); } while (0)
++ #define STBRP_SORT ImQsort
++ #define STB_RECT_PACK_IMPLEMENTATION
++ #endif
++ #ifdef IMGUI_STB_RECT_PACK_FILENAME
++ #include IMGUI_STB_RECT_PACK_FILENAME
++ #else
++ #include "imstb_rectpack.h"
++ #endif
++ #endif
++
++ #ifdef IMGUI_ENABLE_STB_TRUETYPE
++ #ifndef STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
++ #ifndef IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION // in case the user already have an implementation in another compilation unit
++ #define STBTT_malloc(x,u) ((void)(u), IM_ALLOC(x))
++ #define STBTT_free(x,u) ((void)(u), IM_FREE(x))
++ #define STBTT_assert(x) do { IM_ASSERT(x); } while(0)
++ #define STBTT_fmod(x,y) ImFmod(x,y)
++ #define STBTT_sqrt(x) ImSqrt(x)
++ #define STBTT_pow(x,y) ImPow(x,y)
++ #define STBTT_fabs(x) ImFabs(x)
++ #define STBTT_ifloor(x) ((int)ImFloor(x))
++ #define STBTT_iceil(x) ((int)ImCeil(x))
++ #define STBTT_STATIC
++ #define STB_TRUETYPE_IMPLEMENTATION
++ #else
++ #define STBTT_DEF extern
++ #endif
++ #ifdef IMGUI_STB_TRUETYPE_FILENAME
++ #include IMGUI_STB_TRUETYPE_FILENAME
++ #else
++ #include "imstb_truetype.h"
++ #endif
++ #endif
++ #endif // IMGUI_ENABLE_STB_TRUETYPE
++
++ #if defined(__GNUC__)
++ #pragma GCC diagnostic pop
++ #endif
++
++ #if defined(__clang__)
++ #pragma clang diagnostic pop
++ #endif
++
++ #if defined(_MSC_VER)
++ #pragma warning (pop)
++ #endif
++
++ #ifdef IMGUI_STB_NAMESPACE
++ } // namespace ImStb
++ using namespace IMGUI_STB_NAMESPACE;
++ #endif
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] Style functions
++ //-----------------------------------------------------------------------------
++
++ void ImGui::StyleColorsDark(ImGuiStyle* dst)
++ {
++ ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
++ ImVec4* colors = style->Colors;
++
++ colors[ImGuiCol_Text] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
++ colors[ImGuiCol_TextDisabled] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
++ colors[ImGuiCol_WindowBg] = ImVec4(0.06f, 0.06f, 0.06f, 0.94f);
++ colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_PopupBg] = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
++ colors[ImGuiCol_Border] = ImVec4(0.43f, 0.43f, 0.50f, 0.50f);
++ colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.29f, 0.48f, 0.54f);
++ colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
++ colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
++ colors[ImGuiCol_TitleBg] = ImVec4(0.04f, 0.04f, 0.04f, 1.00f);
++ colors[ImGuiCol_TitleBgActive] = ImVec4(0.16f, 0.29f, 0.48f, 1.00f);
++ colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.00f, 0.00f, 0.51f);
++ colors[ImGuiCol_MenuBarBg] = ImVec4(0.14f, 0.14f, 0.14f, 1.00f);
++ colors[ImGuiCol_ScrollbarBg] = ImVec4(0.02f, 0.02f, 0.02f, 0.53f);
++ colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
++ colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.41f, 0.41f, 0.41f, 1.00f);
++ colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.51f, 0.51f, 0.51f, 1.00f);
++ colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
++ colors[ImGuiCol_SliderGrab] = ImVec4(0.24f, 0.52f, 0.88f, 1.00f);
++ colors[ImGuiCol_SliderGrabActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
++ colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
++ colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
++ colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
++ colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
++ colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
++ colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
++ colors[ImGuiCol_Separator] = colors[ImGuiCol_Border];
++ colors[ImGuiCol_SeparatorHovered] = ImVec4(0.10f, 0.40f, 0.75f, 0.78f);
++ colors[ImGuiCol_SeparatorActive] = ImVec4(0.10f, 0.40f, 0.75f, 1.00f);
++ colors[ImGuiCol_ResizeGrip] = ImVec4(0.26f, 0.59f, 0.98f, 0.20f);
++ colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
++ colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
++ colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
++ colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
++ colors[ImGuiCol_TabSelected] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
++ colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive];
++ colors[ImGuiCol_TabDimmed] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
++ colors[ImGuiCol_TabDimmedSelected] = ImLerp(colors[ImGuiCol_TabSelected], colors[ImGuiCol_TitleBg], 0.40f);
++ colors[ImGuiCol_TabDimmedSelectedOverline] = ImVec4(0.50f, 0.50f, 0.50f, 1.00f);
++ colors[ImGuiCol_PlotLines] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
++ colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
++ colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
++ colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
++ colors[ImGuiCol_TableHeaderBg] = ImVec4(0.19f, 0.19f, 0.20f, 1.00f);
++ colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.35f, 1.00f); // Prefer using Alpha=1.0 here
++ colors[ImGuiCol_TableBorderLight] = ImVec4(0.23f, 0.23f, 0.25f, 1.00f); // Prefer using Alpha=1.0 here
++ colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.06f);
++ colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive];
++ colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
++ colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
++ colors[ImGuiCol_NavHighlight] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
++ colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
++ colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
++ colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.35f);
++ }
++
++ void ImGui::StyleColorsClassic(ImGuiStyle* dst)
++ {
++ ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
++ ImVec4* colors = style->Colors;
++
++ colors[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
++ colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
++ colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.85f);
++ colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_PopupBg] = ImVec4(0.11f, 0.11f, 0.14f, 0.92f);
++ colors[ImGuiCol_Border] = ImVec4(0.50f, 0.50f, 0.50f, 0.50f);
++ colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_FrameBg] = ImVec4(0.43f, 0.43f, 0.43f, 0.39f);
++ colors[ImGuiCol_FrameBgHovered] = ImVec4(0.47f, 0.47f, 0.69f, 0.40f);
++ colors[ImGuiCol_FrameBgActive] = ImVec4(0.42f, 0.41f, 0.64f, 0.69f);
++ colors[ImGuiCol_TitleBg] = ImVec4(0.27f, 0.27f, 0.54f, 0.83f);
++ colors[ImGuiCol_TitleBgActive] = ImVec4(0.32f, 0.32f, 0.63f, 0.87f);
++ colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.40f, 0.40f, 0.80f, 0.20f);
++ colors[ImGuiCol_MenuBarBg] = ImVec4(0.40f, 0.40f, 0.55f, 0.80f);
++ colors[ImGuiCol_ScrollbarBg] = ImVec4(0.20f, 0.25f, 0.30f, 0.60f);
++ colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.40f, 0.40f, 0.80f, 0.30f);
++ colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.40f, 0.40f, 0.80f, 0.40f);
++ colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
++ colors[ImGuiCol_CheckMark] = ImVec4(0.90f, 0.90f, 0.90f, 0.50f);
++ colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
++ colors[ImGuiCol_SliderGrabActive] = ImVec4(0.41f, 0.39f, 0.80f, 0.60f);
++ colors[ImGuiCol_Button] = ImVec4(0.35f, 0.40f, 0.61f, 0.62f);
++ colors[ImGuiCol_ButtonHovered] = ImVec4(0.40f, 0.48f, 0.71f, 0.79f);
++ colors[ImGuiCol_ButtonActive] = ImVec4(0.46f, 0.54f, 0.80f, 1.00f);
++ colors[ImGuiCol_Header] = ImVec4(0.40f, 0.40f, 0.90f, 0.45f);
++ colors[ImGuiCol_HeaderHovered] = ImVec4(0.45f, 0.45f, 0.90f, 0.80f);
++ colors[ImGuiCol_HeaderActive] = ImVec4(0.53f, 0.53f, 0.87f, 0.80f);
++ colors[ImGuiCol_Separator] = ImVec4(0.50f, 0.50f, 0.50f, 0.60f);
++ colors[ImGuiCol_SeparatorHovered] = ImVec4(0.60f, 0.60f, 0.70f, 1.00f);
++ colors[ImGuiCol_SeparatorActive] = ImVec4(0.70f, 0.70f, 0.90f, 1.00f);
++ colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.10f);
++ colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.78f, 0.82f, 1.00f, 0.60f);
++ colors[ImGuiCol_ResizeGripActive] = ImVec4(0.78f, 0.82f, 1.00f, 0.90f);
++ colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
++ colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.80f);
++ colors[ImGuiCol_TabSelected] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
++ colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive];
++ colors[ImGuiCol_TabDimmed] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
++ colors[ImGuiCol_TabDimmedSelected] = ImLerp(colors[ImGuiCol_TabSelected], colors[ImGuiCol_TitleBg], 0.40f);
++ colors[ImGuiCol_TabDimmedSelectedOverline] = colors[ImGuiCol_HeaderActive];
++ colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
++ colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
++ colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
++ colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
++ colors[ImGuiCol_TableHeaderBg] = ImVec4(0.27f, 0.27f, 0.38f, 1.00f);
++ colors[ImGuiCol_TableBorderStrong] = ImVec4(0.31f, 0.31f, 0.45f, 1.00f); // Prefer using Alpha=1.0 here
++ colors[ImGuiCol_TableBorderLight] = ImVec4(0.26f, 0.26f, 0.28f, 1.00f); // Prefer using Alpha=1.0 here
++ colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_TableRowBgAlt] = ImVec4(1.00f, 1.00f, 1.00f, 0.07f);
++ colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive];
++ colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
++ colors[ImGuiCol_DragDropTarget] = ImVec4(1.00f, 1.00f, 0.00f, 0.90f);
++ colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
++ colors[ImGuiCol_NavWindowingHighlight] = ImVec4(1.00f, 1.00f, 1.00f, 0.70f);
++ colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.20f);
++ colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
++ }
++
++ // Those light colors are better suited with a thicker font than the default one + FrameBorder
++ void ImGui::StyleColorsLight(ImGuiStyle* dst)
++ {
++ ImGuiStyle* style = dst ? dst : &ImGui::GetStyle();
++ ImVec4* colors = style->Colors;
++
++ colors[ImGuiCol_Text] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
++ colors[ImGuiCol_TextDisabled] = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
++ colors[ImGuiCol_WindowBg] = ImVec4(0.94f, 0.94f, 0.94f, 1.00f);
++ colors[ImGuiCol_ChildBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_PopupBg] = ImVec4(1.00f, 1.00f, 1.00f, 0.98f);
++ colors[ImGuiCol_Border] = ImVec4(0.00f, 0.00f, 0.00f, 0.30f);
++ colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_FrameBg] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
++ colors[ImGuiCol_FrameBgHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
++ colors[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
++ colors[ImGuiCol_TitleBg] = ImVec4(0.96f, 0.96f, 0.96f, 1.00f);
++ colors[ImGuiCol_TitleBgActive] = ImVec4(0.82f, 0.82f, 0.82f, 1.00f);
++ colors[ImGuiCol_TitleBgCollapsed] = ImVec4(1.00f, 1.00f, 1.00f, 0.51f);
++ colors[ImGuiCol_MenuBarBg] = ImVec4(0.86f, 0.86f, 0.86f, 1.00f);
++ colors[ImGuiCol_ScrollbarBg] = ImVec4(0.98f, 0.98f, 0.98f, 0.53f);
++ colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.69f, 0.69f, 0.69f, 0.80f);
++ colors[ImGuiCol_ScrollbarGrabHovered] = ImVec4(0.49f, 0.49f, 0.49f, 0.80f);
++ colors[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.49f, 0.49f, 0.49f, 1.00f);
++ colors[ImGuiCol_CheckMark] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
++ colors[ImGuiCol_SliderGrab] = ImVec4(0.26f, 0.59f, 0.98f, 0.78f);
++ colors[ImGuiCol_SliderGrabActive] = ImVec4(0.46f, 0.54f, 0.80f, 0.60f);
++ colors[ImGuiCol_Button] = ImVec4(0.26f, 0.59f, 0.98f, 0.40f);
++ colors[ImGuiCol_ButtonHovered] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
++ colors[ImGuiCol_ButtonActive] = ImVec4(0.06f, 0.53f, 0.98f, 1.00f);
++ colors[ImGuiCol_Header] = ImVec4(0.26f, 0.59f, 0.98f, 0.31f);
++ colors[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.80f);
++ colors[ImGuiCol_HeaderActive] = ImVec4(0.26f, 0.59f, 0.98f, 1.00f);
++ colors[ImGuiCol_Separator] = ImVec4(0.39f, 0.39f, 0.39f, 0.62f);
++ colors[ImGuiCol_SeparatorHovered] = ImVec4(0.14f, 0.44f, 0.80f, 0.78f);
++ colors[ImGuiCol_SeparatorActive] = ImVec4(0.14f, 0.44f, 0.80f, 1.00f);
++ colors[ImGuiCol_ResizeGrip] = ImVec4(0.35f, 0.35f, 0.35f, 0.17f);
++ colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.26f, 0.59f, 0.98f, 0.67f);
++ colors[ImGuiCol_ResizeGripActive] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
++ colors[ImGuiCol_TabHovered] = colors[ImGuiCol_HeaderHovered];
++ colors[ImGuiCol_Tab] = ImLerp(colors[ImGuiCol_Header], colors[ImGuiCol_TitleBgActive], 0.90f);
++ colors[ImGuiCol_TabSelected] = ImLerp(colors[ImGuiCol_HeaderActive], colors[ImGuiCol_TitleBgActive], 0.60f);
++ colors[ImGuiCol_TabSelectedOverline] = colors[ImGuiCol_HeaderActive];
++ colors[ImGuiCol_TabDimmed] = ImLerp(colors[ImGuiCol_Tab], colors[ImGuiCol_TitleBg], 0.80f);
++ colors[ImGuiCol_TabDimmedSelected] = ImLerp(colors[ImGuiCol_TabSelected], colors[ImGuiCol_TitleBg], 0.40f);
++ colors[ImGuiCol_TabDimmedSelectedOverline] = ImVec4(0.26f, 0.59f, 1.00f, 1.00f);
++ colors[ImGuiCol_PlotLines] = ImVec4(0.39f, 0.39f, 0.39f, 1.00f);
++ colors[ImGuiCol_PlotLinesHovered] = ImVec4(1.00f, 0.43f, 0.35f, 1.00f);
++ colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
++ colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.45f, 0.00f, 1.00f);
++ colors[ImGuiCol_TableHeaderBg] = ImVec4(0.78f, 0.87f, 0.98f, 1.00f);
++ colors[ImGuiCol_TableBorderStrong] = ImVec4(0.57f, 0.57f, 0.64f, 1.00f); // Prefer using Alpha=1.0 here
++ colors[ImGuiCol_TableBorderLight] = ImVec4(0.68f, 0.68f, 0.74f, 1.00f); // Prefer using Alpha=1.0 here
++ colors[ImGuiCol_TableRowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
++ colors[ImGuiCol_TableRowBgAlt] = ImVec4(0.30f, 0.30f, 0.30f, 0.09f);
++ colors[ImGuiCol_TextLink] = colors[ImGuiCol_HeaderActive];
++ colors[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.59f, 0.98f, 0.35f);
++ colors[ImGuiCol_DragDropTarget] = ImVec4(0.26f, 0.59f, 0.98f, 0.95f);
++ colors[ImGuiCol_NavHighlight] = colors[ImGuiCol_HeaderHovered];
++ colors[ImGuiCol_NavWindowingHighlight] = ImVec4(0.70f, 0.70f, 0.70f, 0.70f);
++ colors[ImGuiCol_NavWindowingDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.20f);
++ colors[ImGuiCol_ModalWindowDimBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImDrawList
++ //-----------------------------------------------------------------------------
++
++ ImDrawListSharedData::ImDrawListSharedData()
++ {
++ memset(this, 0, sizeof(*this));
++ for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
++ {
++ const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
++ ArcFastVtx[i] = ImVec2(ImCos(a), ImSin(a));
++ }
++ ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
++ }
++
++ void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
++ {
++ if (CircleSegmentMaxError == max_error)
++ return;
++
++ IM_ASSERT(max_error > 0.0f);
++ CircleSegmentMaxError = max_error;
++ for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
++ {
++ const float radius = (float)i;
++ CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : IM_DRAWLIST_ARCFAST_SAMPLE_MAX);
++ }
++ ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
++ }
++
++ // Initialize before use in a new frame. We always have a command ready in the buffer.
++ // In the majority of cases, you would want to call PushClipRect() and PushTextureID() after this.
++ void ImDrawList::_ResetForNewFrame()
++ {
++ // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
++ IM_STATIC_ASSERT(offsetof(ImDrawCmd, ClipRect) == 0);
++ IM_STATIC_ASSERT(offsetof(ImDrawCmd, TextureId) == sizeof(ImVec4));
++ IM_STATIC_ASSERT(offsetof(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
++ if (_Splitter._Count > 1)
++ _Splitter.Merge(this);
++
++ CmdBuffer.resize(0);
++ IdxBuffer.resize(0);
++ VtxBuffer.resize(0);
++ Flags = _Data->InitialFlags;
++ memset(&_CmdHeader, 0, sizeof(_CmdHeader));
++ _VtxCurrentIdx = 0;
++ _VtxWritePtr = NULL;
++ _IdxWritePtr = NULL;
++ _ClipRectStack.resize(0);
++ _TextureIdStack.resize(0);
++ _Path.resize(0);
++ _Splitter.Clear();
++ CmdBuffer.push_back(ImDrawCmd());
++ _FringeScale = 1.0f;
++ }
++
++ void ImDrawList::_ClearFreeMemory()
++ {
++ CmdBuffer.clear();
++ IdxBuffer.clear();
++ VtxBuffer.clear();
++ Flags = ImDrawListFlags_None;
++ _VtxCurrentIdx = 0;
++ _VtxWritePtr = NULL;
++ _IdxWritePtr = NULL;
++ _ClipRectStack.clear();
++ _TextureIdStack.clear();
++ _Path.clear();
++ _Splitter.ClearFreeMemory();
++ }
++
++ ImDrawList* ImDrawList::CloneOutput() const
++ {
++ ImDrawList* dst = IM_NEW(ImDrawList(_Data));
++ dst->CmdBuffer = CmdBuffer;
++ dst->IdxBuffer = IdxBuffer;
++ dst->VtxBuffer = VtxBuffer;
++ dst->Flags = Flags;
++ return dst;
++ }
++
++ void ImDrawList::AddDrawCmd()
++ {
++ ImDrawCmd draw_cmd;
++ draw_cmd.ClipRect = _CmdHeader.ClipRect; // Same as calling ImDrawCmd_HeaderCopy()
++ draw_cmd.TextureId = _CmdHeader.TextureId;
++ draw_cmd.VtxOffset = _CmdHeader.VtxOffset;
++ draw_cmd.IdxOffset = IdxBuffer.Size;
++
++ IM_ASSERT(draw_cmd.ClipRect.x <= draw_cmd.ClipRect.z && draw_cmd.ClipRect.y <= draw_cmd.ClipRect.w);
++ CmdBuffer.push_back(draw_cmd);
++ }
++
++ // Pop trailing draw command (used before merging or presenting to user)
++ // Note that this leaves the ImDrawList in a state unfit for further commands, as most code assume that CmdBuffer.Size > 0 && CmdBuffer.back().UserCallback == NULL
++ void ImDrawList::_PopUnusedDrawCmd()
++ {
++ while (CmdBuffer.Size > 0)
++ {
++ ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ if (curr_cmd->ElemCount != 0 || curr_cmd->UserCallback != NULL)
++ return;// break;
++ CmdBuffer.pop_back();
++ }
++ }
++
++ void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
++ {
++ IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
++ ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ IM_ASSERT(curr_cmd->UserCallback == NULL);
++ if (curr_cmd->ElemCount != 0)
++ {
++ AddDrawCmd();
++ curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ }
++ curr_cmd->UserCallback = callback;
++ curr_cmd->UserCallbackData = callback_data;
++
++ AddDrawCmd(); // Force a new command after us (see comment below)
++ }
++
++ // Compare ClipRect, TextureId and VtxOffset with a single memcmp()
++ #define ImDrawCmd_HeaderSize (offsetof(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
++ #define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS) (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize)) // Compare ClipRect, TextureId, VtxOffset
++ #define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC) (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize)) // Copy ClipRect, TextureId, VtxOffset
++ #define ImDrawCmd_AreSequentialIdxOffset(CMD_0, CMD_1) (CMD_0->IdxOffset + CMD_0->ElemCount == CMD_1->IdxOffset)
++
++ // Try to merge two last draw commands
++ void ImDrawList::_TryMergeDrawCmds()
++ {
++ IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
++ ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ ImDrawCmd* prev_cmd = curr_cmd - 1;
++ if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL)
++ {
++ prev_cmd->ElemCount += curr_cmd->ElemCount;
++ CmdBuffer.pop_back();
++ }
++ }
++
++ // Our scheme may appears a bit unusual, basically we want the most-common calls AddLine AddRect etc. to not have to perform any check so we always have a command ready in the stack.
++ // The cost of figuring out if a new command has to be added or if we can merge is paid in those Update** functions only.
++ void ImDrawList::_OnChangedClipRect()
++ {
++ // If current command is used with different settings we need to add a new command
++ IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
++ ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ if (curr_cmd->ElemCount != 0 && memcmp(&curr_cmd->ClipRect, &_CmdHeader.ClipRect, sizeof(ImVec4)) != 0)
++ {
++ AddDrawCmd();
++ return;
++ }
++ IM_ASSERT(curr_cmd->UserCallback == NULL);
++
++ // Try to merge with previous command if it matches, else use current command
++ ImDrawCmd* prev_cmd = curr_cmd - 1;
++ if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
++ {
++ CmdBuffer.pop_back();
++ return;
++ }
++
++ curr_cmd->ClipRect = _CmdHeader.ClipRect;
++ }
++
++ void ImDrawList::_OnChangedTextureID()
++ {
++ // If current command is used with different settings we need to add a new command
++ IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
++ ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ if (curr_cmd->ElemCount != 0 && curr_cmd->TextureId != _CmdHeader.TextureId)
++ {
++ AddDrawCmd();
++ return;
++ }
++ IM_ASSERT(curr_cmd->UserCallback == NULL);
++
++ // Try to merge with previous command if it matches, else use current command
++ ImDrawCmd* prev_cmd = curr_cmd - 1;
++ if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
++ {
++ CmdBuffer.pop_back();
++ return;
++ }
++
++ curr_cmd->TextureId = _CmdHeader.TextureId;
++ }
++
++ void ImDrawList::_OnChangedVtxOffset()
++ {
++ // We don't need to compare curr_cmd->VtxOffset != _CmdHeader.VtxOffset because we know it'll be different at the time we call this.
++ _VtxCurrentIdx = 0;
++ IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
++ ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ //IM_ASSERT(curr_cmd->VtxOffset != _CmdHeader.VtxOffset); // See #3349
++ if (curr_cmd->ElemCount != 0)
++ {
++ AddDrawCmd();
++ return;
++ }
++ IM_ASSERT(curr_cmd->UserCallback == NULL);
++ curr_cmd->VtxOffset = _CmdHeader.VtxOffset;
++ }
++
++ int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
++ {
++ // Automatic segment count
++ const int radius_idx = (int)(radius + 0.999999f); // ceil to never reduce accuracy
++ if (radius_idx >= 0 && radius_idx < IM_ARRAYSIZE(_Data->CircleSegmentCounts))
++ return _Data->CircleSegmentCounts[radius_idx]; // Use cached value
++ else
++ return IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, _Data->CircleSegmentMaxError);
++ }
++
++ // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
++ void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool intersect_with_current_clip_rect)
++ {
++ ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
++ if (intersect_with_current_clip_rect)
++ {
++ ImVec4 current = _CmdHeader.ClipRect;
++ if (cr.x < current.x) cr.x = current.x;
++ if (cr.y < current.y) cr.y = current.y;
++ if (cr.z > current.z) cr.z = current.z;
++ if (cr.w > current.w) cr.w = current.w;
++ }
++ cr.z = ImMax(cr.x, cr.z);
++ cr.w = ImMax(cr.y, cr.w);
++
++ _ClipRectStack.push_back(cr);
++ _CmdHeader.ClipRect = cr;
++ _OnChangedClipRect();
++ }
++
++ void ImDrawList::PushClipRectFullScreen()
++ {
++ PushClipRect(ImVec2(_Data->ClipRectFullscreen.x, _Data->ClipRectFullscreen.y), ImVec2(_Data->ClipRectFullscreen.z, _Data->ClipRectFullscreen.w));
++ }
++
++ void ImDrawList::PopClipRect()
++ {
++ _ClipRectStack.pop_back();
++ _CmdHeader.ClipRect = (_ClipRectStack.Size == 0) ? _Data->ClipRectFullscreen : _ClipRectStack.Data[_ClipRectStack.Size - 1];
++ _OnChangedClipRect();
++ }
++
++ void ImDrawList::PushTextureID(ImTextureID texture_id)
++ {
++ _TextureIdStack.push_back(texture_id);
++ _CmdHeader.TextureId = texture_id;
++ _OnChangedTextureID();
++ }
++
++ void ImDrawList::PopTextureID()
++ {
++ _TextureIdStack.pop_back();
++ _CmdHeader.TextureId = (_TextureIdStack.Size == 0) ? (ImTextureID)NULL : _TextureIdStack.Data[_TextureIdStack.Size - 1];
++ _OnChangedTextureID();
++ }
++
++ // Reserve space for a number of vertices and indices.
++ // You must finish filling your reserved data before calling PrimReserve() again, as it may reallocate or
++ // submit the intermediate results. PrimUnreserve() can be used to release unused allocations.
++ void ImDrawList::PrimReserve(int idx_count, int vtx_count)
++ {
++ // Large mesh support (when enabled)
++ IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
++ if (sizeof(ImDrawIdx) == 2 && (_VtxCurrentIdx + vtx_count >= (1 << 16)) && (Flags & ImDrawListFlags_AllowVtxOffset))
++ {
++ // FIXME: In theory we should be testing that vtx_count <64k here.
++ // In practice, RenderText() relies on reserving ahead for a worst case scenario so it is currently useful for us
++ // to not make that check until we rework the text functions to handle clipping and large horizontal lines better.
++ _CmdHeader.VtxOffset = VtxBuffer.Size;
++ _OnChangedVtxOffset();
++ }
++
++ ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ draw_cmd->ElemCount += idx_count;
++
++ int vtx_buffer_old_size = VtxBuffer.Size;
++ VtxBuffer.resize(vtx_buffer_old_size + vtx_count);
++ _VtxWritePtr = VtxBuffer.Data + vtx_buffer_old_size;
++
++ int idx_buffer_old_size = IdxBuffer.Size;
++ IdxBuffer.resize(idx_buffer_old_size + idx_count);
++ _IdxWritePtr = IdxBuffer.Data + idx_buffer_old_size;
++ }
++
++ // Release the number of reserved vertices/indices from the end of the last reservation made with PrimReserve().
++ void ImDrawList::PrimUnreserve(int idx_count, int vtx_count)
++ {
++ IM_ASSERT_PARANOID(idx_count >= 0 && vtx_count >= 0);
++
++ ImDrawCmd* draw_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
++ draw_cmd->ElemCount -= idx_count;
++ VtxBuffer.shrink(VtxBuffer.Size - vtx_count);
++ IdxBuffer.shrink(IdxBuffer.Size - idx_count);
++ }
++
++ // Fully unrolled with inline call to keep our debug builds decently fast.
++ void ImDrawList::PrimRect(const ImVec2& a, const ImVec2& c, ImU32 col)
++ {
++ ImVec2 b(c.x, a.y), d(a.x, c.y), uv(_Data->TexUvWhitePixel);
++ ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
++ _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
++ _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
++ _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
++ _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col;
++ _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv; _VtxWritePtr[2].col = col;
++ _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv; _VtxWritePtr[3].col = col;
++ _VtxWritePtr += 4;
++ _VtxCurrentIdx += 4;
++ _IdxWritePtr += 6;
++ }
++
++ void ImDrawList::PrimRectUV(const ImVec2& a, const ImVec2& c, const ImVec2& uv_a, const ImVec2& uv_c, ImU32 col)
++ {
++ ImVec2 b(c.x, a.y), d(a.x, c.y), uv_b(uv_c.x, uv_a.y), uv_d(uv_a.x, uv_c.y);
++ ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
++ _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
++ _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
++ _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
++ _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
++ _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
++ _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
++ _VtxWritePtr += 4;
++ _VtxCurrentIdx += 4;
++ _IdxWritePtr += 6;
++ }
++
++ void ImDrawList::PrimQuadUV(const ImVec2& a, const ImVec2& b, const ImVec2& c, const ImVec2& d, const ImVec2& uv_a, const ImVec2& uv_b, const ImVec2& uv_c, const ImVec2& uv_d, ImU32 col)
++ {
++ ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
++ _IdxWritePtr[0] = idx; _IdxWritePtr[1] = (ImDrawIdx)(idx+1); _IdxWritePtr[2] = (ImDrawIdx)(idx+2);
++ _IdxWritePtr[3] = idx; _IdxWritePtr[4] = (ImDrawIdx)(idx+2); _IdxWritePtr[5] = (ImDrawIdx)(idx+3);
++ _VtxWritePtr[0].pos = a; _VtxWritePtr[0].uv = uv_a; _VtxWritePtr[0].col = col;
++ _VtxWritePtr[1].pos = b; _VtxWritePtr[1].uv = uv_b; _VtxWritePtr[1].col = col;
++ _VtxWritePtr[2].pos = c; _VtxWritePtr[2].uv = uv_c; _VtxWritePtr[2].col = col;
++ _VtxWritePtr[3].pos = d; _VtxWritePtr[3].uv = uv_d; _VtxWritePtr[3].col = col;
++ _VtxWritePtr += 4;
++ _VtxCurrentIdx += 4;
++ _IdxWritePtr += 6;
++ }
++
++ // On AddPolyline() and AddConvexPolyFilled() we intentionally avoid using ImVec2 and superfluous function calls to optimize debug/non-inlined builds.
++ // - Those macros expects l-values and need to be used as their own statement.
++ // - Those macros are intentionally not surrounded by the 'do {} while (0)' idiom because even that translates to runtime with debug compilers.
++ #define IM_NORMALIZE2F_OVER_ZERO(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.0f) { float inv_len = ImRsqrt(d2); VX *= inv_len; VY *= inv_len; } } (void)0
++ #define IM_FIXNORMAL2F_MAX_INVLEN2 100.0f // 500.0f (see #4053, #3366)
++ #define IM_FIXNORMAL2F(VX,VY) { float d2 = VX*VX + VY*VY; if (d2 > 0.000001f) { float inv_len2 = 1.0f / d2; if (inv_len2 > IM_FIXNORMAL2F_MAX_INVLEN2) inv_len2 = IM_FIXNORMAL2F_MAX_INVLEN2; VX *= inv_len2; VY *= inv_len2; } } (void)0
++
++ // TODO: Thickness anti-aliased lines cap are missing their AA fringe.
++ // We avoid using the ImVec2 math operators here to reduce cost to a minimum for debug/non-inlined builds.
++ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32 col, ImDrawFlags flags, float thickness)
++ {
++ if (points_count < 2 || (col & IM_COL32_A_MASK) == 0)
++ return;
++
++ const bool closed = (flags & ImDrawFlags_Closed) != 0;
++ const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
++ const int count = closed ? points_count : points_count - 1; // The number of line segments we need to draw
++ const bool thick_line = (thickness > _FringeScale);
++
++ if (Flags & ImDrawListFlags_AntiAliasedLines)
++ {
++ // Anti-aliased stroke
++ const float AA_SIZE = _FringeScale;
++ const ImU32 col_trans = col & ~IM_COL32_A_MASK;
++
++ // Thicknesses <1.0 should behave like thickness 1.0
++ thickness = ImMax(thickness, 1.0f);
++ const int integer_thickness = (int)thickness;
++ const float fractional_thickness = thickness - integer_thickness;
++
++ // Do we want to draw this line using a texture?
++ // - For now, only draw integer-width lines using textures to avoid issues with the way scaling occurs, could be improved.
++ // - If AA_SIZE is not 1.0f we cannot use the texture path.
++ const bool use_texture = (Flags & ImDrawListFlags_AntiAliasedLinesUseTex) && (integer_thickness < IM_DRAWLIST_TEX_LINES_WIDTH_MAX) && (fractional_thickness <= 0.00001f) && (AA_SIZE == 1.0f);
++
++ // We should never hit this, because NewFrame() doesn't set ImDrawListFlags_AntiAliasedLinesUseTex unless ImFontAtlasFlags_NoBakedLines is off
++ IM_ASSERT_PARANOID(!use_texture || !(_Data->Font->ContainerAtlas->Flags & ImFontAtlasFlags_NoBakedLines));
++
++ const int idx_count = use_texture ? (count * 6) : (thick_line ? count * 18 : count * 12);
++ const int vtx_count = use_texture ? (points_count * 2) : (thick_line ? points_count * 4 : points_count * 3);
++ PrimReserve(idx_count, vtx_count);
++
++ // Temporary buffer
++ // The first <points_count> items are normals at each line point, then after that there are either 2 or 4 temp points for each line point
++ _Data->TempBuffer.reserve_discard(points_count * ((use_texture || !thick_line) ? 3 : 5));
++ ImVec2* temp_normals = _Data->TempBuffer.Data;
++ ImVec2* temp_points = temp_normals + points_count;
++
++ // Calculate normals (tangents) for each line segment
++ for (int i1 = 0; i1 < count; i1++)
++ {
++ const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
++ float dx = points[i2].x - points[i1].x;
++ float dy = points[i2].y - points[i1].y;
++ IM_NORMALIZE2F_OVER_ZERO(dx, dy);
++ temp_normals[i1].x = dy;
++ temp_normals[i1].y = -dx;
++ }
++ if (!closed)
++ temp_normals[points_count - 1] = temp_normals[points_count - 2];
++
++ // If we are drawing a one-pixel-wide line without a texture, or a textured line of any width, we only need 2 or 3 vertices per point
++ if (use_texture || !thick_line)
++ {
++ // [PATH 1] Texture-based lines (thick or non-thick)
++ // [PATH 2] Non texture-based lines (non-thick)
++
++ // The width of the geometry we need to draw - this is essentially <thickness> pixels for the line itself, plus "one pixel" for AA.
++ // - In the texture-based path, we don't use AA_SIZE here because the +1 is tied to the generated texture
++ // (see ImFontAtlasBuildRenderLinesTexData() function), and so alternate values won't work without changes to that code.
++ // - In the non texture-based paths, we would allow AA_SIZE to potentially be != 1.0f with a patch (e.g. fringe_scale patch to
++ // allow scaling geometry while preserving one-screen-pixel AA fringe).
++ const float half_draw_size = use_texture ? ((thickness * 0.5f) + 1) : AA_SIZE;
++
++ // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
++ if (!closed)
++ {
++ temp_points[0] = points[0] + temp_normals[0] * half_draw_size;
++ temp_points[1] = points[0] - temp_normals[0] * half_draw_size;
++ temp_points[(points_count-1)*2+0] = points[points_count-1] + temp_normals[points_count-1] * half_draw_size;
++ temp_points[(points_count-1)*2+1] = points[points_count-1] - temp_normals[points_count-1] * half_draw_size;
++ }
++
++ // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
++ // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
++ // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
++ unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
++ for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
++ {
++ const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1; // i2 is the second point of the line segment
++ const unsigned int idx2 = ((i1 + 1) == points_count) ? _VtxCurrentIdx : (idx1 + (use_texture ? 2 : 3)); // Vertex index for end of segment
++
++ // Average normals
++ float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
++ float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
++ IM_FIXNORMAL2F(dm_x, dm_y);
++ dm_x *= half_draw_size; // dm_x, dm_y are offset to the outer edge of the AA area
++ dm_y *= half_draw_size;
++
++ // Add temporary vertexes for the outer edges
++ ImVec2* out_vtx = &temp_points[i2 * 2];
++ out_vtx[0].x = points[i2].x + dm_x;
++ out_vtx[0].y = points[i2].y + dm_y;
++ out_vtx[1].x = points[i2].x - dm_x;
++ out_vtx[1].y = points[i2].y - dm_y;
++
++ if (use_texture)
++ {
++ // Add indices for two triangles
++ _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 1); // Right tri
++ _IdxWritePtr[3] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[4] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Left tri
++ _IdxWritePtr += 6;
++ }
++ else
++ {
++ // Add indexes for four triangles
++ _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2); // Right tri 1
++ _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 0); // Right tri 2
++ _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0); // Left tri 1
++ _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1); // Left tri 2
++ _IdxWritePtr += 12;
++ }
++
++ idx1 = idx2;
++ }
++
++ // Add vertexes for each point on the line
++ if (use_texture)
++ {
++ // If we're using textures we only need to emit the left/right edge vertices
++ ImVec4 tex_uvs = _Data->TexUvLines[integer_thickness];
++ /*if (fractional_thickness != 0.0f) // Currently always zero when use_texture==false!
++ {
++ const ImVec4 tex_uvs_1 = _Data->TexUvLines[integer_thickness + 1];
++ tex_uvs.x = tex_uvs.x + (tex_uvs_1.x - tex_uvs.x) * fractional_thickness; // inlined ImLerp()
++ tex_uvs.y = tex_uvs.y + (tex_uvs_1.y - tex_uvs.y) * fractional_thickness;
++ tex_uvs.z = tex_uvs.z + (tex_uvs_1.z - tex_uvs.z) * fractional_thickness;
++ tex_uvs.w = tex_uvs.w + (tex_uvs_1.w - tex_uvs.w) * fractional_thickness;
++ }*/
++ ImVec2 tex_uv0(tex_uvs.x, tex_uvs.y);
++ ImVec2 tex_uv1(tex_uvs.z, tex_uvs.w);
++ for (int i = 0; i < points_count; i++)
++ {
++ _VtxWritePtr[0].pos = temp_points[i * 2 + 0]; _VtxWritePtr[0].uv = tex_uv0; _VtxWritePtr[0].col = col; // Left-side outer edge
++ _VtxWritePtr[1].pos = temp_points[i * 2 + 1]; _VtxWritePtr[1].uv = tex_uv1; _VtxWritePtr[1].col = col; // Right-side outer edge
++ _VtxWritePtr += 2;
++ }
++ }
++ else
++ {
++ // If we're not using a texture, we need the center vertex as well
++ for (int i = 0; i < points_count; i++)
++ {
++ _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col; // Center of line
++ _VtxWritePtr[1].pos = temp_points[i * 2 + 0]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col_trans; // Left-side outer edge
++ _VtxWritePtr[2].pos = temp_points[i * 2 + 1]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col_trans; // Right-side outer edge
++ _VtxWritePtr += 3;
++ }
++ }
++ }
++ else
++ {
++ // [PATH 2] Non texture-based lines (thick): we need to draw the solid line core and thus require four vertices per point
++ const float half_inner_thickness = (thickness - AA_SIZE) * 0.5f;
++
++ // If line is not closed, the first and last points need to be generated differently as there are no normals to blend
++ if (!closed)
++ {
++ const int points_last = points_count - 1;
++ temp_points[0] = points[0] + temp_normals[0] * (half_inner_thickness + AA_SIZE);
++ temp_points[1] = points[0] + temp_normals[0] * (half_inner_thickness);
++ temp_points[2] = points[0] - temp_normals[0] * (half_inner_thickness);
++ temp_points[3] = points[0] - temp_normals[0] * (half_inner_thickness + AA_SIZE);
++ temp_points[points_last * 4 + 0] = points[points_last] + temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
++ temp_points[points_last * 4 + 1] = points[points_last] + temp_normals[points_last] * (half_inner_thickness);
++ temp_points[points_last * 4 + 2] = points[points_last] - temp_normals[points_last] * (half_inner_thickness);
++ temp_points[points_last * 4 + 3] = points[points_last] - temp_normals[points_last] * (half_inner_thickness + AA_SIZE);
++ }
++
++ // Generate the indices to form a number of triangles for each line segment, and the vertices for the line edges
++ // This takes points n and n+1 and writes into n+1, with the first point in a closed line being generated from the final one (as n+1 wraps)
++ // FIXME-OPT: Merge the different loops, possibly remove the temporary buffer.
++ unsigned int idx1 = _VtxCurrentIdx; // Vertex index for start of line segment
++ for (int i1 = 0; i1 < count; i1++) // i1 is the first point of the line segment
++ {
++ const int i2 = (i1 + 1) == points_count ? 0 : (i1 + 1); // i2 is the second point of the line segment
++ const unsigned int idx2 = (i1 + 1) == points_count ? _VtxCurrentIdx : (idx1 + 4); // Vertex index for end of segment
++
++ // Average normals
++ float dm_x = (temp_normals[i1].x + temp_normals[i2].x) * 0.5f;
++ float dm_y = (temp_normals[i1].y + temp_normals[i2].y) * 0.5f;
++ IM_FIXNORMAL2F(dm_x, dm_y);
++ float dm_out_x = dm_x * (half_inner_thickness + AA_SIZE);
++ float dm_out_y = dm_y * (half_inner_thickness + AA_SIZE);
++ float dm_in_x = dm_x * half_inner_thickness;
++ float dm_in_y = dm_y * half_inner_thickness;
++
++ // Add temporary vertices
++ ImVec2* out_vtx = &temp_points[i2 * 4];
++ out_vtx[0].x = points[i2].x + dm_out_x;
++ out_vtx[0].y = points[i2].y + dm_out_y;
++ out_vtx[1].x = points[i2].x + dm_in_x;
++ out_vtx[1].y = points[i2].y + dm_in_y;
++ out_vtx[2].x = points[i2].x - dm_in_x;
++ out_vtx[2].y = points[i2].y - dm_in_y;
++ out_vtx[3].x = points[i2].x - dm_out_x;
++ out_vtx[3].y = points[i2].y - dm_out_y;
++
++ // Add indexes
++ _IdxWritePtr[0] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[1] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[2] = (ImDrawIdx)(idx1 + 2);
++ _IdxWritePtr[3] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[4] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[5] = (ImDrawIdx)(idx2 + 1);
++ _IdxWritePtr[6] = (ImDrawIdx)(idx2 + 1); _IdxWritePtr[7] = (ImDrawIdx)(idx1 + 1); _IdxWritePtr[8] = (ImDrawIdx)(idx1 + 0);
++ _IdxWritePtr[9] = (ImDrawIdx)(idx1 + 0); _IdxWritePtr[10] = (ImDrawIdx)(idx2 + 0); _IdxWritePtr[11] = (ImDrawIdx)(idx2 + 1);
++ _IdxWritePtr[12] = (ImDrawIdx)(idx2 + 2); _IdxWritePtr[13] = (ImDrawIdx)(idx1 + 2); _IdxWritePtr[14] = (ImDrawIdx)(idx1 + 3);
++ _IdxWritePtr[15] = (ImDrawIdx)(idx1 + 3); _IdxWritePtr[16] = (ImDrawIdx)(idx2 + 3); _IdxWritePtr[17] = (ImDrawIdx)(idx2 + 2);
++ _IdxWritePtr += 18;
++
++ idx1 = idx2;
++ }
++
++ // Add vertices
++ for (int i = 0; i < points_count; i++)
++ {
++ _VtxWritePtr[0].pos = temp_points[i * 4 + 0]; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col_trans;
++ _VtxWritePtr[1].pos = temp_points[i * 4 + 1]; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
++ _VtxWritePtr[2].pos = temp_points[i * 4 + 2]; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
++ _VtxWritePtr[3].pos = temp_points[i * 4 + 3]; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col_trans;
++ _VtxWritePtr += 4;
++ }
++ }
++ _VtxCurrentIdx += (ImDrawIdx)vtx_count;
++ }
++ else
++ {
++ // [PATH 4] Non texture-based, Non anti-aliased lines
++ const int idx_count = count * 6;
++ const int vtx_count = count * 4; // FIXME-OPT: Not sharing edges
++ PrimReserve(idx_count, vtx_count);
++
++ for (int i1 = 0; i1 < count; i1++)
++ {
++ const int i2 = (i1 + 1) == points_count ? 0 : i1 + 1;
++ const ImVec2& p1 = points[i1];
++ const ImVec2& p2 = points[i2];
++
++ float dx = p2.x - p1.x;
++ float dy = p2.y - p1.y;
++ IM_NORMALIZE2F_OVER_ZERO(dx, dy);
++ dx *= (thickness * 0.5f);
++ dy *= (thickness * 0.5f);
++
++ _VtxWritePtr[0].pos.x = p1.x + dy; _VtxWritePtr[0].pos.y = p1.y - dx; _VtxWritePtr[0].uv = opaque_uv; _VtxWritePtr[0].col = col;
++ _VtxWritePtr[1].pos.x = p2.x + dy; _VtxWritePtr[1].pos.y = p2.y - dx; _VtxWritePtr[1].uv = opaque_uv; _VtxWritePtr[1].col = col;
++ _VtxWritePtr[2].pos.x = p2.x - dy; _VtxWritePtr[2].pos.y = p2.y + dx; _VtxWritePtr[2].uv = opaque_uv; _VtxWritePtr[2].col = col;
++ _VtxWritePtr[3].pos.x = p1.x - dy; _VtxWritePtr[3].pos.y = p1.y + dx; _VtxWritePtr[3].uv = opaque_uv; _VtxWritePtr[3].col = col;
++ _VtxWritePtr += 4;
++
++ _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + 2);
++ _IdxWritePtr[3] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[4] = (ImDrawIdx)(_VtxCurrentIdx + 2); _IdxWritePtr[5] = (ImDrawIdx)(_VtxCurrentIdx + 3);
++ _IdxWritePtr += 6;
++ _VtxCurrentIdx += 4;
++ }
++ }
++ }
++
++ // - We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
++ // - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
++ void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
++ {
++ if (points_count < 3 || (col & IM_COL32_A_MASK) == 0)
++ return;
++
++ const ImVec2 uv = _Data->TexUvWhitePixel;
++
++ if (Flags & ImDrawListFlags_AntiAliasedFill)
++ {
++ // Anti-aliased Fill
++ const float AA_SIZE = _FringeScale;
++ const ImU32 col_trans = col & ~IM_COL32_A_MASK;
++ const int idx_count = (points_count - 2)*3 + points_count * 6;
++ const int vtx_count = (points_count * 2);
++ PrimReserve(idx_count, vtx_count);
++
++ // Add indexes for fill
++ unsigned int vtx_inner_idx = _VtxCurrentIdx;
++ unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
++ for (int i = 2; i < points_count; i++)
++ {
++ _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + ((i - 1) << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (i << 1));
++ _IdxWritePtr += 3;
++ }
++
++ // Compute normals
++ _Data->TempBuffer.reserve_discard(points_count);
++ ImVec2* temp_normals = _Data->TempBuffer.Data;
++ for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
++ {
++ const ImVec2& p0 = points[i0];
++ const ImVec2& p1 = points[i1];
++ float dx = p1.x - p0.x;
++ float dy = p1.y - p0.y;
++ IM_NORMALIZE2F_OVER_ZERO(dx, dy);
++ temp_normals[i0].x = dy;
++ temp_normals[i0].y = -dx;
++ }
++
++ for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
++ {
++ // Average normals
++ const ImVec2& n0 = temp_normals[i0];
++ const ImVec2& n1 = temp_normals[i1];
++ float dm_x = (n0.x + n1.x) * 0.5f;
++ float dm_y = (n0.y + n1.y) * 0.5f;
++ IM_FIXNORMAL2F(dm_x, dm_y);
++ dm_x *= AA_SIZE * 0.5f;
++ dm_y *= AA_SIZE * 0.5f;
++
++ // Add vertices
++ _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
++ _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
++ _VtxWritePtr += 2;
++
++ // Add indexes for fringes
++ _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
++ _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
++ _IdxWritePtr += 6;
++ }
++ _VtxCurrentIdx += (ImDrawIdx)vtx_count;
++ }
++ else
++ {
++ // Non Anti-aliased Fill
++ const int idx_count = (points_count - 2)*3;
++ const int vtx_count = points_count;
++ PrimReserve(idx_count, vtx_count);
++ for (int i = 0; i < vtx_count; i++)
++ {
++ _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
++ _VtxWritePtr++;
++ }
++ for (int i = 2; i < points_count; i++)
++ {
++ _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + i - 1); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + i);
++ _IdxWritePtr += 3;
++ }
++ _VtxCurrentIdx += (ImDrawIdx)vtx_count;
++ }
++ }
++
++ void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step)
++ {
++ if (radius < 0.5f)
++ {
++ _Path.push_back(center);
++ return;
++ }
++
++ // Calculate arc auto segment step size
++ if (a_step <= 0)
++ a_step = IM_DRAWLIST_ARCFAST_SAMPLE_MAX / _CalcCircleAutoSegmentCount(radius);
++
++ // Make sure we never do steps larger than one quarter of the circle
++ a_step = ImClamp(a_step, 1, IM_DRAWLIST_ARCFAST_TABLE_SIZE / 4);
++
++ const int sample_range = ImAbs(a_max_sample - a_min_sample);
++ const int a_next_step = a_step;
++
++ int samples = sample_range + 1;
++ bool extra_max_sample = false;
++ if (a_step > 1)
++ {
++ samples = sample_range / a_step + 1;
++ const int overstep = sample_range % a_step;
++
++ if (overstep > 0)
++ {
++ extra_max_sample = true;
++ samples++;
++
++ // When we have overstep to avoid awkwardly looking one long line and one tiny one at the end,
++ // distribute first step range evenly between them by reducing first step size.
++ if (sample_range > 0)
++ a_step -= (a_step - overstep) / 2;
++ }
++ }
++
++ _Path.resize(_Path.Size + samples);
++ ImVec2* out_ptr = _Path.Data + (_Path.Size - samples);
++
++ int sample_index = a_min_sample;
++ if (sample_index < 0 || sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
++ {
++ sample_index = sample_index % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
++ if (sample_index < 0)
++ sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
++ }
++
++ if (a_max_sample >= a_min_sample)
++ {
++ for (int a = a_min_sample; a <= a_max_sample; a += a_step, sample_index += a_step, a_step = a_next_step)
++ {
++ // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
++ if (sample_index >= IM_DRAWLIST_ARCFAST_SAMPLE_MAX)
++ sample_index -= IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
++
++ const ImVec2 s = _Data->ArcFastVtx[sample_index];
++ out_ptr->x = center.x + s.x * radius;
++ out_ptr->y = center.y + s.y * radius;
++ out_ptr++;
++ }
++ }
++ else
++ {
++ for (int a = a_min_sample; a >= a_max_sample; a -= a_step, sample_index -= a_step, a_step = a_next_step)
++ {
++ // a_step is clamped to IM_DRAWLIST_ARCFAST_SAMPLE_MAX, so we have guaranteed that it will not wrap over range twice or more
++ if (sample_index < 0)
++ sample_index += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
++
++ const ImVec2 s = _Data->ArcFastVtx[sample_index];
++ out_ptr->x = center.x + s.x * radius;
++ out_ptr->y = center.y + s.y * radius;
++ out_ptr++;
++ }
++ }
++
++ if (extra_max_sample)
++ {
++ int normalized_max_sample = a_max_sample % IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
++ if (normalized_max_sample < 0)
++ normalized_max_sample += IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
++
++ const ImVec2 s = _Data->ArcFastVtx[normalized_max_sample];
++ out_ptr->x = center.x + s.x * radius;
++ out_ptr->y = center.y + s.y * radius;
++ out_ptr++;
++ }
++
++ IM_ASSERT_PARANOID(_Path.Data + _Path.Size == out_ptr);
++ }
++
++ void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
++ {
++ if (radius < 0.5f)
++ {
++ _Path.push_back(center);
++ return;
++ }
++
++ // Note that we are adding a point at both a_min and a_max.
++ // If you are trying to draw a full closed circle you don't want the overlapping points!
++ _Path.reserve(_Path.Size + (num_segments + 1));
++ for (int i = 0; i <= num_segments; i++)
++ {
++ const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
++ _Path.push_back(ImVec2(center.x + ImCos(a) * radius, center.y + ImSin(a) * radius));
++ }
++ }
++
++ // 0: East, 3: South, 6: West, 9: North, 12: East
++ void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
++ {
++ if (radius < 0.5f)
++ {
++ _Path.push_back(center);
++ return;
++ }
++ _PathArcToFastEx(center, radius, a_min_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, a_max_of_12 * IM_DRAWLIST_ARCFAST_SAMPLE_MAX / 12, 0);
++ }
++
++ void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
++ {
++ if (radius < 0.5f)
++ {
++ _Path.push_back(center);
++ return;
++ }
++
++ if (num_segments > 0)
++ {
++ _PathArcToN(center, radius, a_min, a_max, num_segments);
++ return;
++ }
++
++ // Automatic segment count
++ if (radius <= _Data->ArcFastRadiusCutoff)
++ {
++ const bool a_is_reverse = a_max < a_min;
++
++ // We are going to use precomputed values for mid samples.
++ // Determine first and last sample in lookup table that belong to the arc.
++ const float a_min_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_min / (IM_PI * 2.0f);
++ const float a_max_sample_f = IM_DRAWLIST_ARCFAST_SAMPLE_MAX * a_max / (IM_PI * 2.0f);
++
++ const int a_min_sample = a_is_reverse ? (int)ImFloor(a_min_sample_f) : (int)ImCeil(a_min_sample_f);
++ const int a_max_sample = a_is_reverse ? (int)ImCeil(a_max_sample_f) : (int)ImFloor(a_max_sample_f);
++ const int a_mid_samples = a_is_reverse ? ImMax(a_min_sample - a_max_sample, 0) : ImMax(a_max_sample - a_min_sample, 0);
++
++ const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
++ const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
++ const bool a_emit_start = ImAbs(a_min_segment_angle - a_min) >= 1e-5f;
++ const bool a_emit_end = ImAbs(a_max - a_max_segment_angle) >= 1e-5f;
++
++ _Path.reserve(_Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0)));
++ if (a_emit_start)
++ _Path.push_back(ImVec2(center.x + ImCos(a_min) * radius, center.y + ImSin(a_min) * radius));
++ if (a_mid_samples > 0)
++ _PathArcToFastEx(center, radius, a_min_sample, a_max_sample, 0);
++ if (a_emit_end)
++ _Path.push_back(ImVec2(center.x + ImCos(a_max) * radius, center.y + ImSin(a_max) * radius));
++ }
++ else
++ {
++ const float arc_length = ImAbs(a_max - a_min);
++ const int circle_segment_count = _CalcCircleAutoSegmentCount(radius);
++ const int arc_segment_count = ImMax((int)ImCeil(circle_segment_count * arc_length / (IM_PI * 2.0f)), (int)(2.0f * IM_PI / arc_length));
++ _PathArcToN(center, radius, a_min, a_max, arc_segment_count);
++ }
++ }
++
++ void ImDrawList::PathEllipticalArcTo(const ImVec2& center, const ImVec2& radius, float rot, float a_min, float a_max, int num_segments)
++ {
++ if (num_segments <= 0)
++ num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
++
++ _Path.reserve(_Path.Size + (num_segments + 1));
++
++ const float cos_rot = ImCos(rot);
++ const float sin_rot = ImSin(rot);
++ for (int i = 0; i <= num_segments; i++)
++ {
++ const float a = a_min + ((float)i / (float)num_segments) * (a_max - a_min);
++ ImVec2 point(ImCos(a) * radius.x, ImSin(a) * radius.y);
++ const ImVec2 rel((point.x * cos_rot) - (point.y * sin_rot), (point.x * sin_rot) + (point.y * cos_rot));
++ point.x = rel.x + center.x;
++ point.y = rel.y + center.y;
++ _Path.push_back(point);
++ }
++ }
++
++ ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
++ {
++ float u = 1.0f - t;
++ float w1 = u * u * u;
++ float w2 = 3 * u * u * t;
++ float w3 = 3 * u * t * t;
++ float w4 = t * t * t;
++ return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y);
++ }
++
++ ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t)
++ {
++ float u = 1.0f - t;
++ float w1 = u * u;
++ float w2 = 2 * u * t;
++ float w3 = t * t;
++ return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x, w1 * p1.y + w2 * p2.y + w3 * p3.y);
++ }
++
++ // Closely mimics ImBezierCubicClosestPointCasteljau() in imgui.cpp
++ static void PathBezierCubicCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float x4, float y4, float tess_tol, int level)
++ {
++ float dx = x4 - x1;
++ float dy = y4 - y1;
++ float d2 = (x2 - x4) * dy - (y2 - y4) * dx;
++ float d3 = (x3 - x4) * dy - (y3 - y4) * dx;
++ d2 = (d2 >= 0) ? d2 : -d2;
++ d3 = (d3 >= 0) ? d3 : -d3;
++ if ((d2 + d3) * (d2 + d3) < tess_tol * (dx * dx + dy * dy))
++ {
++ path->push_back(ImVec2(x4, y4));
++ }
++ else if (level < 10)
++ {
++ float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
++ float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
++ float x34 = (x3 + x4) * 0.5f, y34 = (y3 + y4) * 0.5f;
++ float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
++ float x234 = (x23 + x34) * 0.5f, y234 = (y23 + y34) * 0.5f;
++ float x1234 = (x123 + x234) * 0.5f, y1234 = (y123 + y234) * 0.5f;
++ PathBezierCubicCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, x1234, y1234, tess_tol, level + 1);
++ PathBezierCubicCurveToCasteljau(path, x1234, y1234, x234, y234, x34, y34, x4, y4, tess_tol, level + 1);
++ }
++ }
++
++ static void PathBezierQuadraticCurveToCasteljau(ImVector<ImVec2>* path, float x1, float y1, float x2, float y2, float x3, float y3, float tess_tol, int level)
++ {
++ float dx = x3 - x1, dy = y3 - y1;
++ float det = (x2 - x3) * dy - (y2 - y3) * dx;
++ if (det * det * 4.0f < tess_tol * (dx * dx + dy * dy))
++ {
++ path->push_back(ImVec2(x3, y3));
++ }
++ else if (level < 10)
++ {
++ float x12 = (x1 + x2) * 0.5f, y12 = (y1 + y2) * 0.5f;
++ float x23 = (x2 + x3) * 0.5f, y23 = (y2 + y3) * 0.5f;
++ float x123 = (x12 + x23) * 0.5f, y123 = (y12 + y23) * 0.5f;
++ PathBezierQuadraticCurveToCasteljau(path, x1, y1, x12, y12, x123, y123, tess_tol, level + 1);
++ PathBezierQuadraticCurveToCasteljau(path, x123, y123, x23, y23, x3, y3, tess_tol, level + 1);
++ }
++ }
++
++ void ImDrawList::PathBezierCubicCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments)
++ {
++ ImVec2 p1 = _Path.back();
++ if (num_segments == 0)
++ {
++ IM_ASSERT(_Data->CurveTessellationTol > 0.0f);
++ PathBezierCubicCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, p4.x, p4.y, _Data->CurveTessellationTol, 0); // Auto-tessellated
++ }
++ else
++ {
++ float t_step = 1.0f / (float)num_segments;
++ for (int i_step = 1; i_step <= num_segments; i_step++)
++ _Path.push_back(ImBezierCubicCalc(p1, p2, p3, p4, t_step * i_step));
++ }
++ }
++
++ void ImDrawList::PathBezierQuadraticCurveTo(const ImVec2& p2, const ImVec2& p3, int num_segments)
++ {
++ ImVec2 p1 = _Path.back();
++ if (num_segments == 0)
++ {
++ IM_ASSERT(_Data->CurveTessellationTol > 0.0f);
++ PathBezierQuadraticCurveToCasteljau(&_Path, p1.x, p1.y, p2.x, p2.y, p3.x, p3.y, _Data->CurveTessellationTol, 0);// Auto-tessellated
++ }
++ else
++ {
++ float t_step = 1.0f / (float)num_segments;
++ for (int i_step = 1; i_step <= num_segments; i_step++)
++ _Path.push_back(ImBezierQuadraticCalc(p1, p2, p3, t_step * i_step));
++ }
++ }
++
++ static inline ImDrawFlags FixRectCornerFlags(ImDrawFlags flags)
++ {
++ /*
++ IM_STATIC_ASSERT(ImDrawFlags_RoundCornersTopLeft == (1 << 4));
++ #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
++ // Obsoleted in 1.82 (from February 2021). This code was stripped/simplified and mostly commented in 1.90 (from September 2023)
++ // - Legacy Support for hard coded ~0 (used to be a suggested equivalent to ImDrawCornerFlags_All)
++ if (flags == ~0) { return ImDrawFlags_RoundCornersAll; }
++ // - Legacy Support for hard coded 0x01 to 0x0F (matching 15 out of 16 old flags combinations). Read details in older version of this code.
++ if (flags >= 0x01 && flags <= 0x0F) { return (flags << 4); }
++ // We cannot support hard coded 0x00 with 'float rounding > 0.0f' --> replace with ImDrawFlags_RoundCornersNone or use 'float rounding = 0.0f'
++ #endif
++ */
++ // If this assert triggers, please update your code replacing hardcoded values with new ImDrawFlags_RoundCorners* values.
++ // Note that ImDrawFlags_Closed (== 0x01) is an invalid flag for AddRect(), AddRectFilled(), PathRect() etc. anyway.
++ // See details in 1.82 Changelog as well as 2021/03/12 and 2023/09/08 entries in "API BREAKING CHANGES" section.
++ IM_ASSERT((flags & 0x0F) == 0 && "Misuse of legacy hardcoded ImDrawCornerFlags values!");
++
++ if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
++ flags |= ImDrawFlags_RoundCornersAll;
++
++ return flags;
++ }
++
++ void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDrawFlags flags)
++ {
++ if (rounding >= 0.5f)
++ {
++ flags = FixRectCornerFlags(flags);
++ rounding = ImMin(rounding, ImFabs(b.x - a.x) * (((flags & ImDrawFlags_RoundCornersTop) == ImDrawFlags_RoundCornersTop) || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f) - 1.0f);
++ rounding = ImMin(rounding, ImFabs(b.y - a.y) * (((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight) == ImDrawFlags_RoundCornersRight) ? 0.5f : 1.0f) - 1.0f);
++ }
++ if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
++ {
++ PathLineTo(a);
++ PathLineTo(ImVec2(b.x, a.y));
++ PathLineTo(b);
++ PathLineTo(ImVec2(a.x, b.y));
++ }
++ else
++ {
++ const float rounding_tl = (flags & ImDrawFlags_RoundCornersTopLeft) ? rounding : 0.0f;
++ const float rounding_tr = (flags & ImDrawFlags_RoundCornersTopRight) ? rounding : 0.0f;
++ const float rounding_br = (flags & ImDrawFlags_RoundCornersBottomRight) ? rounding : 0.0f;
++ const float rounding_bl = (flags & ImDrawFlags_RoundCornersBottomLeft) ? rounding : 0.0f;
++ PathArcToFast(ImVec2(a.x + rounding_tl, a.y + rounding_tl), rounding_tl, 6, 9);
++ PathArcToFast(ImVec2(b.x - rounding_tr, a.y + rounding_tr), rounding_tr, 9, 12);
++ PathArcToFast(ImVec2(b.x - rounding_br, b.y - rounding_br), rounding_br, 0, 3);
++ PathArcToFast(ImVec2(a.x + rounding_bl, b.y - rounding_bl), rounding_bl, 3, 6);
++ }
++ }
++
++ void ImDrawList::AddLine(const ImVec2& p1, const ImVec2& p2, ImU32 col, float thickness)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++ PathLineTo(p1 + ImVec2(0.5f, 0.5f));
++ PathLineTo(p2 + ImVec2(0.5f, 0.5f));
++ PathStroke(col, 0, thickness);
++ }
++
++ // p_min = upper-left, p_max = lower-right
++ // Note we don't render 1 pixels sized rectangles properly.
++ void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags, float thickness)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++ if (Flags & ImDrawListFlags_AntiAliasedLines)
++ PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.50f, 0.50f), rounding, flags);
++ else
++ PathRect(p_min + ImVec2(0.50f, 0.50f), p_max - ImVec2(0.49f, 0.49f), rounding, flags); // Better looking lower-right corner and rounded non-AA shapes.
++ PathStroke(col, ImDrawFlags_Closed, thickness);
++ }
++
++ void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float rounding, ImDrawFlags flags)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++ if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
++ {
++ PrimReserve(6, 4);
++ PrimRect(p_min, p_max, col);
++ }
++ else
++ {
++ PathRect(p_min, p_max, rounding, flags);
++ PathFillConvex(col);
++ }
++ }
++
++ // p_min = upper-left, p_max = lower-right
++ void ImDrawList::AddRectFilledMultiColor(const ImVec2& p_min, const ImVec2& p_max, ImU32 col_upr_left, ImU32 col_upr_right, ImU32 col_bot_right, ImU32 col_bot_left)
++ {
++ if (((col_upr_left | col_upr_right | col_bot_right | col_bot_left) & IM_COL32_A_MASK) == 0)
++ return;
++
++ const ImVec2 uv = _Data->TexUvWhitePixel;
++ PrimReserve(6, 4);
++ PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 1)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2));
++ PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 2)); PrimWriteIdx((ImDrawIdx)(_VtxCurrentIdx + 3));
++ PrimWriteVtx(p_min, uv, col_upr_left);
++ PrimWriteVtx(ImVec2(p_max.x, p_min.y), uv, col_upr_right);
++ PrimWriteVtx(p_max, uv, col_bot_right);
++ PrimWriteVtx(ImVec2(p_min.x, p_max.y), uv, col_bot_left);
++ }
++
++ void ImDrawList::AddQuad(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ PathLineTo(p1);
++ PathLineTo(p2);
++ PathLineTo(p3);
++ PathLineTo(p4);
++ PathStroke(col, ImDrawFlags_Closed, thickness);
++ }
++
++ void ImDrawList::AddQuadFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ PathLineTo(p1);
++ PathLineTo(p2);
++ PathLineTo(p3);
++ PathLineTo(p4);
++ PathFillConvex(col);
++ }
++
++ void ImDrawList::AddTriangle(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ PathLineTo(p1);
++ PathLineTo(p2);
++ PathLineTo(p3);
++ PathStroke(col, ImDrawFlags_Closed, thickness);
++ }
++
++ void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ PathLineTo(p1);
++ PathLineTo(p2);
++ PathLineTo(p3);
++ PathFillConvex(col);
++ }
++
++ void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
++ {
++ if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
++ return;
++
++ if (num_segments <= 0)
++ {
++ // Use arc with automatic segment count
++ _PathArcToFastEx(center, radius - 0.5f, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0);
++ _Path.Size--;
++ }
++ else
++ {
++ // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
++ num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
++
++ // Because we are filling a closed shape we remove 1 from the count of segments/points
++ const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
++ PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
++ }
++
++ PathStroke(col, ImDrawFlags_Closed, thickness);
++ }
++
++ void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
++ {
++ if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
++ return;
++
++ if (num_segments <= 0)
++ {
++ // Use arc with automatic segment count
++ _PathArcToFastEx(center, radius, 0, IM_DRAWLIST_ARCFAST_SAMPLE_MAX, 0);
++ _Path.Size--;
++ }
++ else
++ {
++ // Explicit segment count (still clamp to avoid drawing insanely tessellated shapes)
++ num_segments = ImClamp(num_segments, 3, IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX);
++
++ // Because we are filling a closed shape we remove 1 from the count of segments/points
++ const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
++ PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
++ }
++
++ PathFillConvex(col);
++ }
++
++ // Guaranteed to honor 'num_segments'
++ void ImDrawList::AddNgon(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
++ {
++ if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
++ return;
++
++ // Because we are filling a closed shape we remove 1 from the count of segments/points
++ const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
++ PathArcTo(center, radius - 0.5f, 0.0f, a_max, num_segments - 1);
++ PathStroke(col, ImDrawFlags_Closed, thickness);
++ }
++
++ // Guaranteed to honor 'num_segments'
++ void ImDrawList::AddNgonFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
++ {
++ if ((col & IM_COL32_A_MASK) == 0 || num_segments <= 2)
++ return;
++
++ // Because we are filling a closed shape we remove 1 from the count of segments/points
++ const float a_max = (IM_PI * 2.0f) * ((float)num_segments - 1.0f) / (float)num_segments;
++ PathArcTo(center, radius, 0.0f, a_max, num_segments - 1);
++ PathFillConvex(col);
++ }
++
++ // Ellipse
++ void ImDrawList::AddEllipse(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot, int num_segments, float thickness)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ if (num_segments <= 0)
++ num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
++
++ // Because we are filling a closed shape we remove 1 from the count of segments/points
++ const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
++ PathEllipticalArcTo(center, radius, rot, 0.0f, a_max, num_segments - 1);
++ PathStroke(col, true, thickness);
++ }
++
++ void ImDrawList::AddEllipseFilled(const ImVec2& center, const ImVec2& radius, ImU32 col, float rot, int num_segments)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ if (num_segments <= 0)
++ num_segments = _CalcCircleAutoSegmentCount(ImMax(radius.x, radius.y)); // A bit pessimistic, maybe there's a better computation to do here.
++
++ // Because we are filling a closed shape we remove 1 from the count of segments/points
++ const float a_max = IM_PI * 2.0f * ((float)num_segments - 1.0f) / (float)num_segments;
++ PathEllipticalArcTo(center, radius, rot, 0.0f, a_max, num_segments - 1);
++ PathFillConvex(col);
++ }
++
++ // Cubic Bezier takes 4 controls points
++ void ImDrawList::AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ PathLineTo(p1);
++ PathBezierCubicCurveTo(p2, p3, p4, num_segments);
++ PathStroke(col, 0, thickness);
++ }
++
++ // Quadratic Bezier takes 3 controls points
++ void ImDrawList::AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ PathLineTo(p1);
++ PathBezierQuadraticCurveTo(p2, p3, num_segments);
++ PathStroke(col, 0, thickness);
++ }
++
++ void ImDrawList::AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end, float wrap_width, const ImVec4* cpu_fine_clip_rect)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ // Accept null ranges
++ if (text_begin == text_end || text_begin[0] == 0)
++ return;
++ if (text_end == NULL)
++ text_end = text_begin + strlen(text_begin);
++
++ // Pull default font/size from the shared ImDrawListSharedData instance
++ if (font == NULL)
++ font = _Data->Font;
++ if (font_size == 0.0f)
++ font_size = _Data->FontSize;
++
++ IM_ASSERT(font->ContainerAtlas->TexID == _CmdHeader.TextureId); // Use high-level ImGui::PushFont() or low-level ImDrawList::PushTextureId() to change font.
++
++ ImVec4 clip_rect = _CmdHeader.ClipRect;
++ if (cpu_fine_clip_rect)
++ {
++ clip_rect.x = ImMax(clip_rect.x, cpu_fine_clip_rect->x);
++ clip_rect.y = ImMax(clip_rect.y, cpu_fine_clip_rect->y);
++ clip_rect.z = ImMin(clip_rect.z, cpu_fine_clip_rect->z);
++ clip_rect.w = ImMin(clip_rect.w, cpu_fine_clip_rect->w);
++ }
++ font->RenderText(this, font_size, pos, col, clip_rect, text_begin, text_end, wrap_width, cpu_fine_clip_rect != NULL);
++ }
++
++ void ImDrawList::AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end)
++ {
++ AddText(NULL, 0.0f, pos, col, text_begin, text_end);
++ }
++
++ void ImDrawList::AddImage(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
++ if (push_texture_id)
++ PushTextureID(user_texture_id);
++
++ PrimReserve(6, 4);
++ PrimRectUV(p_min, p_max, uv_min, uv_max, col);
++
++ if (push_texture_id)
++ PopTextureID();
++ }
++
++ void ImDrawList::AddImageQuad(ImTextureID user_texture_id, const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, const ImVec2& uv1, const ImVec2& uv2, const ImVec2& uv3, const ImVec2& uv4, ImU32 col)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
++ if (push_texture_id)
++ PushTextureID(user_texture_id);
++
++ PrimReserve(6, 4);
++ PrimQuadUV(p1, p2, p3, p4, uv1, uv2, uv3, uv4, col);
++
++ if (push_texture_id)
++ PopTextureID();
++ }
++
++ void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags)
++ {
++ if ((col & IM_COL32_A_MASK) == 0)
++ return;
++
++ flags = FixRectCornerFlags(flags);
++ if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
++ {
++ AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
++ return;
++ }
++
++ const bool push_texture_id = user_texture_id != _CmdHeader.TextureId;
++ if (push_texture_id)
++ PushTextureID(user_texture_id);
++
++ int vert_start_idx = VtxBuffer.Size;
++ PathRect(p_min, p_max, rounding, flags);
++ PathFillConvex(col);
++ int vert_end_idx = VtxBuffer.Size;
++ ImGui::ShadeVertsLinearUV(this, vert_start_idx, vert_end_idx, p_min, p_max, uv_min, uv_max, true);
++
++ if (push_texture_id)
++ PopTextureID();
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImTriangulator, ImDrawList concave polygon fill
++ //-----------------------------------------------------------------------------
++ // Triangulate concave polygons. Based on "Triangulation by Ear Clipping" paper, O(N^2) complexity.
++ // Provided as a convenience for user but not used by main library.
++ //-----------------------------------------------------------------------------
++ // - ImTriangulator [Internal]
++ // - AddConcavePolyFilled()
++ //-----------------------------------------------------------------------------
++
++ enum ImTriangulatorNodeType
++ {
++ ImTriangulatorNodeType_Convex,
++ ImTriangulatorNodeType_Ear,
++ ImTriangulatorNodeType_Reflex
++ };
++
++ struct ImTriangulatorNode
++ {
++ ImTriangulatorNodeType Type;
++ int Index;
++ ImVec2 Pos;
++ ImTriangulatorNode* Next;
++ ImTriangulatorNode* Prev;
++
++ void Unlink() { Next->Prev = Prev; Prev->Next = Next; }
++ };
++
++ struct ImTriangulatorNodeSpan
++ {
++ ImTriangulatorNode** Data = NULL;
++ int Size = 0;
++
++ void push_back(ImTriangulatorNode* node) { Data[Size++] = node; }
++ void find_erase_unsorted(int idx) { for (int i = Size - 1; i >= 0; i--) if (Data[i]->Index == idx) { Data[i] = Data[Size - 1]; Size--; return; } }
++ };
++
++ struct ImTriangulator
++ {
++ static int EstimateTriangleCount(int points_count) { return (points_count < 3) ? 0 : points_count - 2; }
++ static int EstimateScratchBufferSize(int points_count) { return sizeof(ImTriangulatorNode) * points_count + sizeof(ImTriangulatorNode*) * points_count * 2; }
++
++ void Init(const ImVec2* points, int points_count, void* scratch_buffer);
++ void GetNextTriangle(unsigned int out_triangle[3]); // Return relative indexes for next triangle
++
++ // Internal functions
++ void BuildNodes(const ImVec2* points, int points_count);
++ void BuildReflexes();
++ void BuildEars();
++ void FlipNodeList();
++ bool IsEar(int i0, int i1, int i2, const ImVec2& v0, const ImVec2& v1, const ImVec2& v2) const;
++ void ReclassifyNode(ImTriangulatorNode* node);
++
++ // Internal members
++ int _TrianglesLeft = 0;
++ ImTriangulatorNode* _Nodes = NULL;
++ ImTriangulatorNodeSpan _Ears;
++ ImTriangulatorNodeSpan _Reflexes;
++ };
++
++ // Distribute storage for nodes, ears and reflexes.
++ // FIXME-OPT: if everything is convex, we could report it to caller and let it switch to an convex renderer
++ // (this would require first building reflexes to bail to convex if empty, without even building nodes)
++ void ImTriangulator::Init(const ImVec2* points, int points_count, void* scratch_buffer)
++ {
++ IM_ASSERT(scratch_buffer != NULL && points_count >= 3);
++ _TrianglesLeft = EstimateTriangleCount(points_count);
++ _Nodes = (ImTriangulatorNode*)scratch_buffer; // points_count x Node
++ _Ears.Data = (ImTriangulatorNode**)(_Nodes + points_count); // points_count x Node*
++ _Reflexes.Data = (ImTriangulatorNode**)(_Nodes + points_count) + points_count; // points_count x Node*
++ BuildNodes(points, points_count);
++ BuildReflexes();
++ BuildEars();
++ }
++
++ void ImTriangulator::BuildNodes(const ImVec2* points, int points_count)
++ {
++ for (int i = 0; i < points_count; i++)
++ {
++ _Nodes[i].Type = ImTriangulatorNodeType_Convex;
++ _Nodes[i].Index = i;
++ _Nodes[i].Pos = points[i];
++ _Nodes[i].Next = _Nodes + i + 1;
++ _Nodes[i].Prev = _Nodes + i - 1;
++ }
++ _Nodes[0].Prev = _Nodes + points_count - 1;
++ _Nodes[points_count - 1].Next = _Nodes;
++ }
++
++ void ImTriangulator::BuildReflexes()
++ {
++ ImTriangulatorNode* n1 = _Nodes;
++ for (int i = _TrianglesLeft; i >= 0; i--, n1 = n1->Next)
++ {
++ if (ImTriangleIsClockwise(n1->Prev->Pos, n1->Pos, n1->Next->Pos))
++ continue;
++ n1->Type = ImTriangulatorNodeType_Reflex;
++ _Reflexes.push_back(n1);
++ }
++ }
++
++ void ImTriangulator::BuildEars()
++ {
++ ImTriangulatorNode* n1 = _Nodes;
++ for (int i = _TrianglesLeft; i >= 0; i--, n1 = n1->Next)
++ {
++ if (n1->Type != ImTriangulatorNodeType_Convex)
++ continue;
++ if (!IsEar(n1->Prev->Index, n1->Index, n1->Next->Index, n1->Prev->Pos, n1->Pos, n1->Next->Pos))
++ continue;
++ n1->Type = ImTriangulatorNodeType_Ear;
++ _Ears.push_back(n1);
++ }
++ }
++
++ void ImTriangulator::GetNextTriangle(unsigned int out_triangle[3])
++ {
++ if (_Ears.Size == 0)
++ {
++ FlipNodeList();
++
++ ImTriangulatorNode* node = _Nodes;
++ for (int i = _TrianglesLeft; i >= 0; i--, node = node->Next)
++ node->Type = ImTriangulatorNodeType_Convex;
++ _Reflexes.Size = 0;
++ BuildReflexes();
++ BuildEars();
++
++ // If we still don't have ears, it means geometry is degenerated.
++ if (_Ears.Size == 0)
++ {
++ // Return first triangle available, mimicking the behavior of convex fill.
++ IM_ASSERT(_TrianglesLeft > 0); // Geometry is degenerated
++ _Ears.Data[0] = _Nodes;
++ _Ears.Size = 1;
++ }
++ }
++
++ ImTriangulatorNode* ear = _Ears.Data[--_Ears.Size];
++ out_triangle[0] = ear->Prev->Index;
++ out_triangle[1] = ear->Index;
++ out_triangle[2] = ear->Next->Index;
++
++ ear->Unlink();
++ if (ear == _Nodes)
++ _Nodes = ear->Next;
++
++ ReclassifyNode(ear->Prev);
++ ReclassifyNode(ear->Next);
++ _TrianglesLeft--;
++ }
++
++ void ImTriangulator::FlipNodeList()
++ {
++ ImTriangulatorNode* prev = _Nodes;
++ ImTriangulatorNode* temp = _Nodes;
++ ImTriangulatorNode* current = _Nodes->Next;
++ prev->Next = prev;
++ prev->Prev = prev;
++ while (current != _Nodes)
++ {
++ temp = current->Next;
++
++ current->Next = prev;
++ prev->Prev = current;
++ _Nodes->Next = current;
++ current->Prev = _Nodes;
++
++ prev = current;
++ current = temp;
++ }
++ _Nodes = prev;
++ }
++
++ // A triangle is an ear is no other vertex is inside it. We can test reflexes vertices only (see reference algorithm)
++ bool ImTriangulator::IsEar(int i0, int i1, int i2, const ImVec2& v0, const ImVec2& v1, const ImVec2& v2) const
++ {
++ ImTriangulatorNode** p_end = _Reflexes.Data + _Reflexes.Size;
++ for (ImTriangulatorNode** p = _Reflexes.Data; p < p_end; p++)
++ {
++ ImTriangulatorNode* reflex = *p;
++ if (reflex->Index != i0 && reflex->Index != i1 && reflex->Index != i2)
++ if (ImTriangleContainsPoint(v0, v1, v2, reflex->Pos))
++ return false;
++ }
++ return true;
++ }
++
++ void ImTriangulator::ReclassifyNode(ImTriangulatorNode* n1)
++ {
++ // Classify node
++ ImTriangulatorNodeType type;
++ const ImTriangulatorNode* n0 = n1->Prev;
++ const ImTriangulatorNode* n2 = n1->Next;
++ if (!ImTriangleIsClockwise(n0->Pos, n1->Pos, n2->Pos))
++ type = ImTriangulatorNodeType_Reflex;
++ else if (IsEar(n0->Index, n1->Index, n2->Index, n0->Pos, n1->Pos, n2->Pos))
++ type = ImTriangulatorNodeType_Ear;
++ else
++ type = ImTriangulatorNodeType_Convex;
++
++ // Update lists when a type changes
++ if (type == n1->Type)
++ return;
++ if (n1->Type == ImTriangulatorNodeType_Reflex)
++ _Reflexes.find_erase_unsorted(n1->Index);
++ else if (n1->Type == ImTriangulatorNodeType_Ear)
++ _Ears.find_erase_unsorted(n1->Index);
++ if (type == ImTriangulatorNodeType_Reflex)
++ _Reflexes.push_back(n1);
++ else if (type == ImTriangulatorNodeType_Ear)
++ _Ears.push_back(n1);
++ n1->Type = type;
++ }
++
++ // Use ear-clipping algorithm to triangulate a simple polygon (no self-interaction, no holes).
++ // (Reminder: we don't perform any coarse clipping/culling in ImDrawList layer!
++ // It is up to caller to ensure not making costly calls that will be outside of visible area.
++ // As concave fill is noticeably more expensive than other primitives, be mindful of this...
++ // Caller can build AABB of points, and avoid filling if 'draw_list->_CmdHeader.ClipRect.Overlays(points_bb) == false')
++ void ImDrawList::AddConcavePolyFilled(const ImVec2* points, const int points_count, ImU32 col)
++ {
++ if (points_count < 3 || (col & IM_COL32_A_MASK) == 0)
++ return;
++
++ const ImVec2 uv = _Data->TexUvWhitePixel;
++ ImTriangulator triangulator;
++ unsigned int triangle[3];
++ if (Flags & ImDrawListFlags_AntiAliasedFill)
++ {
++ // Anti-aliased Fill
++ const float AA_SIZE = _FringeScale;
++ const ImU32 col_trans = col & ~IM_COL32_A_MASK;
++ const int idx_count = (points_count - 2) * 3 + points_count * 6;
++ const int vtx_count = (points_count * 2);
++ PrimReserve(idx_count, vtx_count);
++
++ // Add indexes for fill
++ unsigned int vtx_inner_idx = _VtxCurrentIdx;
++ unsigned int vtx_outer_idx = _VtxCurrentIdx + 1;
++
++ _Data->TempBuffer.reserve_discard((ImTriangulator::EstimateScratchBufferSize(points_count) + sizeof(ImVec2)) / sizeof(ImVec2));
++ triangulator.Init(points, points_count, _Data->TempBuffer.Data);
++ while (triangulator._TrianglesLeft > 0)
++ {
++ triangulator.GetNextTriangle(triangle);
++ _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (triangle[0] << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (triangle[1] << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_inner_idx + (triangle[2] << 1));
++ _IdxWritePtr += 3;
++ }
++
++ // Compute normals
++ _Data->TempBuffer.reserve_discard(points_count);
++ ImVec2* temp_normals = _Data->TempBuffer.Data;
++ for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
++ {
++ const ImVec2& p0 = points[i0];
++ const ImVec2& p1 = points[i1];
++ float dx = p1.x - p0.x;
++ float dy = p1.y - p0.y;
++ IM_NORMALIZE2F_OVER_ZERO(dx, dy);
++ temp_normals[i0].x = dy;
++ temp_normals[i0].y = -dx;
++ }
++
++ for (int i0 = points_count - 1, i1 = 0; i1 < points_count; i0 = i1++)
++ {
++ // Average normals
++ const ImVec2& n0 = temp_normals[i0];
++ const ImVec2& n1 = temp_normals[i1];
++ float dm_x = (n0.x + n1.x) * 0.5f;
++ float dm_y = (n0.y + n1.y) * 0.5f;
++ IM_FIXNORMAL2F(dm_x, dm_y);
++ dm_x *= AA_SIZE * 0.5f;
++ dm_y *= AA_SIZE * 0.5f;
++
++ // Add vertices
++ _VtxWritePtr[0].pos.x = (points[i1].x - dm_x); _VtxWritePtr[0].pos.y = (points[i1].y - dm_y); _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col; // Inner
++ _VtxWritePtr[1].pos.x = (points[i1].x + dm_x); _VtxWritePtr[1].pos.y = (points[i1].y + dm_y); _VtxWritePtr[1].uv = uv; _VtxWritePtr[1].col = col_trans; // Outer
++ _VtxWritePtr += 2;
++
++ // Add indexes for fringes
++ _IdxWritePtr[0] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1)); _IdxWritePtr[1] = (ImDrawIdx)(vtx_inner_idx + (i0 << 1)); _IdxWritePtr[2] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1));
++ _IdxWritePtr[3] = (ImDrawIdx)(vtx_outer_idx + (i0 << 1)); _IdxWritePtr[4] = (ImDrawIdx)(vtx_outer_idx + (i1 << 1)); _IdxWritePtr[5] = (ImDrawIdx)(vtx_inner_idx + (i1 << 1));
++ _IdxWritePtr += 6;
++ }
++ _VtxCurrentIdx += (ImDrawIdx)vtx_count;
++ }
++ else
++ {
++ // Non Anti-aliased Fill
++ const int idx_count = (points_count - 2) * 3;
++ const int vtx_count = points_count;
++ PrimReserve(idx_count, vtx_count);
++ for (int i = 0; i < vtx_count; i++)
++ {
++ _VtxWritePtr[0].pos = points[i]; _VtxWritePtr[0].uv = uv; _VtxWritePtr[0].col = col;
++ _VtxWritePtr++;
++ }
++ _Data->TempBuffer.reserve_discard((ImTriangulator::EstimateScratchBufferSize(points_count) + sizeof(ImVec2)) / sizeof(ImVec2));
++ triangulator.Init(points, points_count, _Data->TempBuffer.Data);
++ while (triangulator._TrianglesLeft > 0)
++ {
++ triangulator.GetNextTriangle(triangle);
++ _IdxWritePtr[0] = (ImDrawIdx)(_VtxCurrentIdx + triangle[0]); _IdxWritePtr[1] = (ImDrawIdx)(_VtxCurrentIdx + triangle[1]); _IdxWritePtr[2] = (ImDrawIdx)(_VtxCurrentIdx + triangle[2]);
++ _IdxWritePtr += 3;
++ }
++ _VtxCurrentIdx += (ImDrawIdx)vtx_count;
++ }
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImDrawListSplitter
++ //-----------------------------------------------------------------------------
++ // FIXME: This may be a little confusing, trying to be a little too low-level/optimal instead of just doing vector swap..
++ //-----------------------------------------------------------------------------
++
++ void ImDrawListSplitter::ClearFreeMemory()
++ {
++ for (int i = 0; i < _Channels.Size; i++)
++ {
++ if (i == _Current)
++ memset(&_Channels[i], 0, sizeof(_Channels[i])); // Current channel is a copy of CmdBuffer/IdxBuffer, don't destruct again
++ _Channels[i]._CmdBuffer.clear();
++ _Channels[i]._IdxBuffer.clear();
++ }
++ _Current = 0;
++ _Count = 1;
++ _Channels.clear();
++ }
++
++ void ImDrawListSplitter::Split(ImDrawList* draw_list, int channels_count)
++ {
++ IM_UNUSED(draw_list);
++ IM_ASSERT(_Current == 0 && _Count <= 1 && "Nested channel splitting is not supported. Please use separate instances of ImDrawListSplitter.");
++ int old_channels_count = _Channels.Size;
++ if (old_channels_count < channels_count)
++ {
++ _Channels.reserve(channels_count); // Avoid over reserving since this is likely to stay stable
++ _Channels.resize(channels_count);
++ }
++ _Count = channels_count;
++
++ // Channels[] (24/32 bytes each) hold storage that we'll swap with draw_list->_CmdBuffer/_IdxBuffer
++ // The content of Channels[0] at this point doesn't matter. We clear it to make state tidy in a debugger but we don't strictly need to.
++ // When we switch to the next channel, we'll copy draw_list->_CmdBuffer/_IdxBuffer into Channels[0] and then Channels[1] into draw_list->CmdBuffer/_IdxBuffer
++ memset(&_Channels[0], 0, sizeof(ImDrawChannel));
++ for (int i = 1; i < channels_count; i++)
++ {
++ if (i >= old_channels_count)
++ {
++ IM_PLACEMENT_NEW(&_Channels[i]) ImDrawChannel();
++ }
++ else
++ {
++ _Channels[i]._CmdBuffer.resize(0);
++ _Channels[i]._IdxBuffer.resize(0);
++ }
++ }
++ }
++
++ void ImDrawListSplitter::Merge(ImDrawList* draw_list)
++ {
++ // Note that we never use or rely on _Channels.Size because it is merely a buffer that we never shrink back to 0 to keep all sub-buffers ready for use.
++ if (_Count <= 1)
++ return;
++
++ SetCurrentChannel(draw_list, 0);
++ draw_list->_PopUnusedDrawCmd();
++
++ // Calculate our final buffer sizes. Also fix the incorrect IdxOffset values in each command.
++ int new_cmd_buffer_count = 0;
++ int new_idx_buffer_count = 0;
++ ImDrawCmd* last_cmd = (_Count > 0 && draw_list->CmdBuffer.Size > 0) ? &draw_list->CmdBuffer.back() : NULL;
++ int idx_offset = last_cmd ? last_cmd->IdxOffset + last_cmd->ElemCount : 0;
++ for (int i = 1; i < _Count; i++)
++ {
++ ImDrawChannel& ch = _Channels[i];
++ if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 && ch._CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
++ ch._CmdBuffer.pop_back();
++
++ if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
++ {
++ // Do not include ImDrawCmd_AreSequentialIdxOffset() in the compare as we rebuild IdxOffset values ourselves.
++ // Manipulating IdxOffset (e.g. by reordering draw commands like done by RenderDimmedBackgroundBehindWindow()) is not supported within a splitter.
++ ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
++ if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
++ {
++ // Merge previous channel last draw command with current channel first draw command if matching.
++ last_cmd->ElemCount += next_cmd->ElemCount;
++ idx_offset += next_cmd->ElemCount;
++ ch._CmdBuffer.erase(ch._CmdBuffer.Data); // FIXME-OPT: Improve for multiple merges.
++ }
++ }
++ if (ch._CmdBuffer.Size > 0)
++ last_cmd = &ch._CmdBuffer.back();
++ new_cmd_buffer_count += ch._CmdBuffer.Size;
++ new_idx_buffer_count += ch._IdxBuffer.Size;
++ for (int cmd_n = 0; cmd_n < ch._CmdBuffer.Size; cmd_n++)
++ {
++ ch._CmdBuffer.Data[cmd_n].IdxOffset = idx_offset;
++ idx_offset += ch._CmdBuffer.Data[cmd_n].ElemCount;
++ }
++ }
++ draw_list->CmdBuffer.resize(draw_list->CmdBuffer.Size + new_cmd_buffer_count);
++ draw_list->IdxBuffer.resize(draw_list->IdxBuffer.Size + new_idx_buffer_count);
++
++ // Write commands and indices in order (they are fairly small structures, we don't copy vertices only indices)
++ ImDrawCmd* cmd_write = draw_list->CmdBuffer.Data + draw_list->CmdBuffer.Size - new_cmd_buffer_count;
++ ImDrawIdx* idx_write = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size - new_idx_buffer_count;
++ for (int i = 1; i < _Count; i++)
++ {
++ ImDrawChannel& ch = _Channels[i];
++ if (int sz = ch._CmdBuffer.Size) { memcpy(cmd_write, ch._CmdBuffer.Data, sz * sizeof(ImDrawCmd)); cmd_write += sz; }
++ if (int sz = ch._IdxBuffer.Size) { memcpy(idx_write, ch._IdxBuffer.Data, sz * sizeof(ImDrawIdx)); idx_write += sz; }
++ }
++ draw_list->_IdxWritePtr = idx_write;
++
++ // Ensure there's always a non-callback draw command trailing the command-buffer
++ if (draw_list->CmdBuffer.Size == 0 || draw_list->CmdBuffer.back().UserCallback != NULL)
++ draw_list->AddDrawCmd();
++
++ // If current command is used with different settings we need to add a new command
++ ImDrawCmd* curr_cmd = &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
++ if (curr_cmd->ElemCount == 0)
++ ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
++ else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
++ draw_list->AddDrawCmd();
++
++ _Count = 1;
++ }
++
++ void ImDrawListSplitter::SetCurrentChannel(ImDrawList* draw_list, int idx)
++ {
++ IM_ASSERT(idx >= 0 && idx < _Count);
++ if (_Current == idx)
++ return;
++
++ // Overwrite ImVector (12/16 bytes), four times. This is merely a silly optimization instead of doing .swap()
++ memcpy(&_Channels.Data[_Current]._CmdBuffer, &draw_list->CmdBuffer, sizeof(draw_list->CmdBuffer));
++ memcpy(&_Channels.Data[_Current]._IdxBuffer, &draw_list->IdxBuffer, sizeof(draw_list->IdxBuffer));
++ _Current = idx;
++ memcpy(&draw_list->CmdBuffer, &_Channels.Data[idx]._CmdBuffer, sizeof(draw_list->CmdBuffer));
++ memcpy(&draw_list->IdxBuffer, &_Channels.Data[idx]._IdxBuffer, sizeof(draw_list->IdxBuffer));
++ draw_list->_IdxWritePtr = draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size;
++
++ // If current command is used with different settings we need to add a new command
++ ImDrawCmd* curr_cmd = (draw_list->CmdBuffer.Size == 0) ? NULL : &draw_list->CmdBuffer.Data[draw_list->CmdBuffer.Size - 1];
++ if (curr_cmd == NULL)
++ draw_list->AddDrawCmd();
++ else if (curr_cmd->ElemCount == 0)
++ ImDrawCmd_HeaderCopy(curr_cmd, &draw_list->_CmdHeader); // Copy ClipRect, TextureId, VtxOffset
++ else if (ImDrawCmd_HeaderCompare(curr_cmd, &draw_list->_CmdHeader) != 0)
++ draw_list->AddDrawCmd();
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImDrawData
++ //-----------------------------------------------------------------------------
++
++ void ImDrawData::Clear()
++ {
++ Valid = false;
++ CmdListsCount = TotalIdxCount = TotalVtxCount = 0;
++ CmdLists.resize(0); // The ImDrawList are NOT owned by ImDrawData but e.g. by ImGuiContext, so we don't clear them.
++ DisplayPos = DisplaySize = FramebufferScale = ImVec2(0.0f, 0.0f);
++ OwnerViewport = NULL;
++ }
++
++ // Important: 'out_list' is generally going to be draw_data->CmdLists, but may be another temporary list
++ // as long at it is expected that the result will be later merged into draw_data->CmdLists[].
++ void ImGui::AddDrawListToDrawDataEx(ImDrawData* draw_data, ImVector<ImDrawList*>* out_list, ImDrawList* draw_list)
++ {
++ if (draw_list->CmdBuffer.Size == 0)
++ return;
++ if (draw_list->CmdBuffer.Size == 1 && draw_list->CmdBuffer[0].ElemCount == 0 && draw_list->CmdBuffer[0].UserCallback == NULL)
++ return;
++
++ // Draw list sanity check. Detect mismatch between PrimReserve() calls and incrementing _VtxCurrentIdx, _VtxWritePtr etc.
++ // May trigger for you if you are using PrimXXX functions incorrectly.
++ IM_ASSERT(draw_list->VtxBuffer.Size == 0 || draw_list->_VtxWritePtr == draw_list->VtxBuffer.Data + draw_list->VtxBuffer.Size);
++ IM_ASSERT(draw_list->IdxBuffer.Size == 0 || draw_list->_IdxWritePtr == draw_list->IdxBuffer.Data + draw_list->IdxBuffer.Size);
++ if (!(draw_list->Flags & ImDrawListFlags_AllowVtxOffset))
++ IM_ASSERT((int)draw_list->_VtxCurrentIdx == draw_list->VtxBuffer.Size);
++
++ // Check that draw_list doesn't use more vertices than indexable (default ImDrawIdx = unsigned short = 2 bytes = 64K vertices per ImDrawList = per window)
++ // If this assert triggers because you are drawing lots of stuff manually:
++ // - First, make sure you are coarse clipping yourself and not trying to draw many things outside visible bounds.
++ // Be mindful that the lower-level ImDrawList API doesn't filter vertices. Use the Metrics/Debugger window to inspect draw list contents.
++ // - If you want large meshes with more than 64K vertices, you can either:
++ // (A) Handle the ImDrawCmd::VtxOffset value in your renderer backend, and set 'io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset'.
++ // Most example backends already support this from 1.71. Pre-1.71 backends won't.
++ // Some graphics API such as GL ES 1/2 don't have a way to offset the starting vertex so it is not supported for them.
++ // (B) Or handle 32-bit indices in your renderer backend, and uncomment '#define ImDrawIdx unsigned int' line in imconfig.h.
++ // Most example backends already support this. For example, the OpenGL example code detect index size at compile-time:
++ // glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
++ // Your own engine or render API may use different parameters or function calls to specify index sizes.
++ // 2 and 4 bytes indices are generally supported by most graphics API.
++ // - If for some reason neither of those solutions works for you, a workaround is to call BeginChild()/EndChild() before reaching
++ // the 64K limit to split your draw commands in multiple draw lists.
++ if (sizeof(ImDrawIdx) == 2)
++ IM_ASSERT(draw_list->_VtxCurrentIdx < (1 << 16) && "Too many vertices in ImDrawList using 16-bit indices. Read comment above");
++
++ // Add to output list + records state in ImDrawData
++ out_list->push_back(draw_list);
++ draw_data->CmdListsCount++;
++ draw_data->TotalVtxCount += draw_list->VtxBuffer.Size;
++ draw_data->TotalIdxCount += draw_list->IdxBuffer.Size;
++ }
++
++ void ImDrawData::AddDrawList(ImDrawList* draw_list)
++ {
++ IM_ASSERT(CmdLists.Size == CmdListsCount);
++ draw_list->_PopUnusedDrawCmd();
++ ImGui::AddDrawListToDrawDataEx(this, &CmdLists, draw_list);
++ }
++
++ // For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
++ void ImDrawData::DeIndexAllBuffers()
++ {
++ ImVector<ImDrawVert> new_vtx_buffer;
++ TotalVtxCount = TotalIdxCount = 0;
++ for (int i = 0; i < CmdListsCount; i++)
++ {
++ ImDrawList* cmd_list = CmdLists[i];
++ if (cmd_list->IdxBuffer.empty())
++ continue;
++ new_vtx_buffer.resize(cmd_list->IdxBuffer.Size);
++ for (int j = 0; j < cmd_list->IdxBuffer.Size; j++)
++ new_vtx_buffer[j] = cmd_list->VtxBuffer[cmd_list->IdxBuffer[j]];
++ cmd_list->VtxBuffer.swap(new_vtx_buffer);
++ cmd_list->IdxBuffer.resize(0);
++ TotalVtxCount += cmd_list->VtxBuffer.Size;
++ }
++ }
++
++ // Helper to scale the ClipRect field of each ImDrawCmd.
++ // Use if your final output buffer is at a different scale than draw_data->DisplaySize,
++ // or if there is a difference between your window resolution and framebuffer resolution.
++ void ImDrawData::ScaleClipRects(const ImVec2& fb_scale)
++ {
++ for (ImDrawList* draw_list : CmdLists)
++ for (ImDrawCmd& cmd : draw_list->CmdBuffer)
++ cmd.ClipRect = ImVec4(cmd.ClipRect.x * fb_scale.x, cmd.ClipRect.y * fb_scale.y, cmd.ClipRect.z * fb_scale.x, cmd.ClipRect.w * fb_scale.y);
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] Helpers ShadeVertsXXX functions
++ //-----------------------------------------------------------------------------
++
++ // Generic linear color gradient, write to RGB fields, leave A untouched.
++ void ImGui::ShadeVertsLinearColorGradientKeepAlpha(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, ImVec2 gradient_p0, ImVec2 gradient_p1, ImU32 col0, ImU32 col1)
++ {
++ ImVec2 gradient_extent = gradient_p1 - gradient_p0;
++ float gradient_inv_length2 = 1.0f / ImLengthSqr(gradient_extent);
++ ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
++ ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
++ const int col0_r = (int)(col0 >> IM_COL32_R_SHIFT) & 0xFF;
++ const int col0_g = (int)(col0 >> IM_COL32_G_SHIFT) & 0xFF;
++ const int col0_b = (int)(col0 >> IM_COL32_B_SHIFT) & 0xFF;
++ const int col_delta_r = ((int)(col1 >> IM_COL32_R_SHIFT) & 0xFF) - col0_r;
++ const int col_delta_g = ((int)(col1 >> IM_COL32_G_SHIFT) & 0xFF) - col0_g;
++ const int col_delta_b = ((int)(col1 >> IM_COL32_B_SHIFT) & 0xFF) - col0_b;
++ for (ImDrawVert* vert = vert_start; vert < vert_end; vert++)
++ {
++ float d = ImDot(vert->pos - gradient_p0, gradient_extent);
++ float t = ImClamp(d * gradient_inv_length2, 0.0f, 1.0f);
++ int r = (int)(col0_r + col_delta_r * t);
++ int g = (int)(col0_g + col_delta_g * t);
++ int b = (int)(col0_b + col_delta_b * t);
++ vert->col = (r << IM_COL32_R_SHIFT) | (g << IM_COL32_G_SHIFT) | (b << IM_COL32_B_SHIFT) | (vert->col & IM_COL32_A_MASK);
++ }
++ }
++
++ // Distribute UV over (a, b) rectangle
++ void ImGui::ShadeVertsLinearUV(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& a, const ImVec2& b, const ImVec2& uv_a, const ImVec2& uv_b, bool clamp)
++ {
++ const ImVec2 size = b - a;
++ const ImVec2 uv_size = uv_b - uv_a;
++ const ImVec2 scale = ImVec2(
++ size.x != 0.0f ? (uv_size.x / size.x) : 0.0f,
++ size.y != 0.0f ? (uv_size.y / size.y) : 0.0f);
++
++ ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
++ ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
++ if (clamp)
++ {
++ const ImVec2 min = ImMin(uv_a, uv_b);
++ const ImVec2 max = ImMax(uv_a, uv_b);
++ for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
++ vertex->uv = ImClamp(uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale), min, max);
++ }
++ else
++ {
++ for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
++ vertex->uv = uv_a + ImMul(ImVec2(vertex->pos.x, vertex->pos.y) - a, scale);
++ }
++ }
++
++ void ImGui::ShadeVertsTransformPos(ImDrawList* draw_list, int vert_start_idx, int vert_end_idx, const ImVec2& pivot_in, float cos_a, float sin_a, const ImVec2& pivot_out)
++ {
++ ImDrawVert* vert_start = draw_list->VtxBuffer.Data + vert_start_idx;
++ ImDrawVert* vert_end = draw_list->VtxBuffer.Data + vert_end_idx;
++ for (ImDrawVert* vertex = vert_start; vertex < vert_end; ++vertex)
++ vertex->pos = ImRotate(vertex->pos- pivot_in, cos_a, sin_a) + pivot_out;
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImFontConfig
++ //-----------------------------------------------------------------------------
++
++ ImFontConfig::ImFontConfig()
++ {
++ memset(this, 0, sizeof(*this));
++ FontDataOwnedByAtlas = true;
++ OversampleH = 2;
++ OversampleV = 1;
++ GlyphMaxAdvanceX = FLT_MAX;
++ RasterizerMultiply = 1.0f;
++ RasterizerDensity = 1.0f;
++ EllipsisChar = (ImWchar)-1;
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImFontAtlas
++ //-----------------------------------------------------------------------------
++
++ // A work of art lies ahead! (. = white layer, X = black layer, others are blank)
++ // The 2x2 white texels on the top left are the ones we'll use everywhere in Dear ImGui to render filled shapes.
++ // (This is used when io.MouseDrawCursor = true)
++ const int FONT_ATLAS_DEFAULT_TEX_DATA_W = 122; // Actual texture will be 2 times that + 1 spacing.
++ const int FONT_ATLAS_DEFAULT_TEX_DATA_H = 27;
++ static const char FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS[FONT_ATLAS_DEFAULT_TEX_DATA_W * FONT_ATLAS_DEFAULT_TEX_DATA_H + 1] =
++ {
++ "..- -XXXXXXX- X - X -XXXXXXX - XXXXXXX- XX - XX XX "
++ "..- -X.....X- X.X - X.X -X.....X - X.....X- X..X -X..X X..X"
++ "--- -XXX.XXX- X...X - X...X -X....X - X....X- X..X -X...X X...X"
++ "X - X.X - X.....X - X.....X -X...X - X...X- X..X - X...X X...X "
++ "XX - X.X -X.......X- X.......X -X..X.X - X.X..X- X..X - X...X...X "
++ "X.X - X.X -XXXX.XXXX- XXXX.XXXX -X.X X.X - X.X X.X- X..XXX - X.....X "
++ "X..X - X.X - X.X - X.X -XX X.X - X.X XX- X..X..XXX - X...X "
++ "X...X - X.X - X.X - XX X.X XX - X.X - X.X - X..X..X..XX - X.X "
++ "X....X - X.X - X.X - X.X X.X X.X - X.X - X.X - X..X..X..X.X - X...X "
++ "X.....X - X.X - X.X - X..X X.X X..X - X.X - X.X -XXX X..X..X..X..X- X.....X "
++ "X......X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X XX-XX X.X -X..XX........X..X- X...X...X "
++ "X.......X - X.X - X.X -X.....................X- X.X X.X-X.X X.X -X...X...........X- X...X X...X "
++ "X........X - X.X - X.X - X...XXXXXX.XXXXXX...X - X.X..X-X..X.X - X..............X-X...X X...X"
++ "X.........X -XXX.XXX- X.X - X..X X.X X..X - X...X-X...X - X.............X-X..X X..X"
++ "X..........X-X.....X- X.X - X.X X.X X.X - X....X-X....X - X.............X- XX XX "
++ "X......XXXXX-XXXXXXX- X.X - XX X.X XX - X.....X-X.....X - X............X--------------"
++ "X...X..X --------- X.X - X.X - XXXXXXX-XXXXXXX - X...........X - "
++ "X..X X..X - -XXXX.XXXX- XXXX.XXXX ------------------------------------- X..........X - "
++ "X.X X..X - -X.......X- X.......X - XX XX - - X..........X - "
++ "XX X..X - - X.....X - X.....X - X.X X.X - - X........X - "
++ " X..X - - X...X - X...X - X..X X..X - - X........X - "
++ " XX - - X.X - X.X - X...XXXXXXXXXXXXX...X - - XXXXXXXXXX - "
++ "------------- - X - X -X.....................X- ------------------- "
++ " ----------------------------------- X...XXXXXXXXXXXXX...X - "
++ " - X..X X..X - "
++ " - X.X X.X - "
++ " - XX XX - "
++ };
++
++ static const ImVec2 FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[ImGuiMouseCursor_COUNT][3] =
++ {
++ // Pos ........ Size ......... Offset ......
++ { ImVec2( 0,3), ImVec2(12,19), ImVec2( 0, 0) }, // ImGuiMouseCursor_Arrow
++ { ImVec2(13,0), ImVec2( 7,16), ImVec2( 1, 8) }, // ImGuiMouseCursor_TextInput
++ { ImVec2(31,0), ImVec2(23,23), ImVec2(11,11) }, // ImGuiMouseCursor_ResizeAll
++ { ImVec2(21,0), ImVec2( 9,23), ImVec2( 4,11) }, // ImGuiMouseCursor_ResizeNS
++ { ImVec2(55,18),ImVec2(23, 9), ImVec2(11, 4) }, // ImGuiMouseCursor_ResizeEW
++ { ImVec2(73,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNESW
++ { ImVec2(55,0), ImVec2(17,17), ImVec2( 8, 8) }, // ImGuiMouseCursor_ResizeNWSE
++ { ImVec2(91,0), ImVec2(17,22), ImVec2( 5, 0) }, // ImGuiMouseCursor_Hand
++ { ImVec2(109,0),ImVec2(13,15), ImVec2( 6, 7) }, // ImGuiMouseCursor_NotAllowed
++ };
++
++ ImFontAtlas::ImFontAtlas()
++ {
++ memset(this, 0, sizeof(*this));
++ TexGlyphPadding = 1;
++ PackIdMouseCursors = PackIdLines = -1;
++ }
++
++ ImFontAtlas::~ImFontAtlas()
++ {
++ IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
++ Clear();
++ }
++
++ void ImFontAtlas::ClearInputData()
++ {
++ IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
++ for (ImFontConfig& font_cfg : ConfigData)
++ if (font_cfg.FontData && font_cfg.FontDataOwnedByAtlas)
++ {
++ IM_FREE(font_cfg.FontData);
++ font_cfg.FontData = NULL;
++ }
++
++ // When clearing this we lose access to the font name and other information used to build the font.
++ for (ImFont* font : Fonts)
++ if (font->ConfigData >= ConfigData.Data && font->ConfigData < ConfigData.Data + ConfigData.Size)
++ {
++ font->ConfigData = NULL;
++ font->ConfigDataCount = 0;
++ }
++ ConfigData.clear();
++ CustomRects.clear();
++ PackIdMouseCursors = PackIdLines = -1;
++ // Important: we leave TexReady untouched
++ }
++
++ void ImFontAtlas::ClearTexData()
++ {
++ IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
++ if (TexPixelsAlpha8)
++ IM_FREE(TexPixelsAlpha8);
++ if (TexPixelsRGBA32)
++ IM_FREE(TexPixelsRGBA32);
++ TexPixelsAlpha8 = NULL;
++ TexPixelsRGBA32 = NULL;
++ TexPixelsUseColors = false;
++ // Important: we leave TexReady untouched
++ }
++
++ void ImFontAtlas::ClearFonts()
++ {
++ IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
++ Fonts.clear_delete();
++ TexReady = false;
++ }
++
++ void ImFontAtlas::Clear()
++ {
++ ClearInputData();
++ ClearTexData();
++ ClearFonts();
++ }
++
++ void ImFontAtlas::GetTexDataAsAlpha8(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
++ {
++ // Build atlas on demand
++ if (TexPixelsAlpha8 == NULL)
++ Build();
++
++ *out_pixels = TexPixelsAlpha8;
++ if (out_width) *out_width = TexWidth;
++ if (out_height) *out_height = TexHeight;
++ if (out_bytes_per_pixel) *out_bytes_per_pixel = 1;
++ }
++
++ void ImFontAtlas::GetTexDataAsRGBA32(unsigned char** out_pixels, int* out_width, int* out_height, int* out_bytes_per_pixel)
++ {
++ // Convert to RGBA32 format on demand
++ // Although it is likely to be the most commonly used format, our font rendering is 1 channel / 8 bpp
++ if (!TexPixelsRGBA32)
++ {
++ unsigned char* pixels = NULL;
++ GetTexDataAsAlpha8(&pixels, NULL, NULL);
++ if (pixels)
++ {
++ TexPixelsRGBA32 = (unsigned int*)IM_ALLOC((size_t)TexWidth * (size_t)TexHeight * 4);
++ const unsigned char* src = pixels;
++ unsigned int* dst = TexPixelsRGBA32;
++ for (int n = TexWidth * TexHeight; n > 0; n--)
++ *dst++ = IM_COL32(255, 255, 255, (unsigned int)(*src++));
++ }
++ }
++
++ *out_pixels = (unsigned char*)TexPixelsRGBA32;
++ if (out_width) *out_width = TexWidth;
++ if (out_height) *out_height = TexHeight;
++ if (out_bytes_per_pixel) *out_bytes_per_pixel = 4;
++ }
++
++ ImFont* ImFontAtlas::AddFont(const ImFontConfig* font_cfg)
++ {
++ IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
++ IM_ASSERT(font_cfg->FontData != NULL && font_cfg->FontDataSize > 0);
++ IM_ASSERT(font_cfg->SizePixels > 0.0f);
++
++ // Create new font
++ if (!font_cfg->MergeMode)
++ Fonts.push_back(IM_NEW(ImFont));
++ else
++ IM_ASSERT(!Fonts.empty() && "Cannot use MergeMode for the first font"); // When using MergeMode make sure that a font has already been added before. You can use ImGui::GetIO().Fonts->AddFontDefault() to add the default imgui font.
++
++ ConfigData.push_back(*font_cfg);
++ ImFontConfig& new_font_cfg = ConfigData.back();
++ if (new_font_cfg.DstFont == NULL)
++ new_font_cfg.DstFont = Fonts.back();
++ if (!new_font_cfg.FontDataOwnedByAtlas)
++ {
++ new_font_cfg.FontData = IM_ALLOC(new_font_cfg.FontDataSize);
++ new_font_cfg.FontDataOwnedByAtlas = true;
++ memcpy(new_font_cfg.FontData, font_cfg->FontData, (size_t)new_font_cfg.FontDataSize);
++ }
++
++ if (new_font_cfg.DstFont->EllipsisChar == (ImWchar)-1)
++ new_font_cfg.DstFont->EllipsisChar = font_cfg->EllipsisChar;
++
++ ImFontAtlasUpdateConfigDataPointers(this);
++
++ // Invalidate texture
++ TexReady = false;
++ ClearTexData();
++ return new_font_cfg.DstFont;
++ }
++
++ // Default font TTF is compressed with stb_compress then base85 encoded (see misc/fonts/binary_to_compressed_c.cpp for encoder)
++ static unsigned int stb_decompress_length(const unsigned char* input);
++ static unsigned int stb_decompress(unsigned char* output, const unsigned char* input, unsigned int length);
++ static const char* GetDefaultCompressedFontDataTTFBase85();
++ static unsigned int Decode85Byte(char c) { return c >= '\\' ? c-36 : c-35; }
++ static void Decode85(const unsigned char* src, unsigned char* dst)
++ {
++ while (*src)
++ {
++ unsigned int tmp = Decode85Byte(src[0]) + 85 * (Decode85Byte(src[1]) + 85 * (Decode85Byte(src[2]) + 85 * (Decode85Byte(src[3]) + 85 * Decode85Byte(src[4]))));
++ dst[0] = ((tmp >> 0) & 0xFF); dst[1] = ((tmp >> 8) & 0xFF); dst[2] = ((tmp >> 16) & 0xFF); dst[3] = ((tmp >> 24) & 0xFF); // We can't assume little-endianness.
++ src += 5;
++ dst += 4;
++ }
++ }
++
++ // Load embedded ProggyClean.ttf at size 13, disable oversampling
++ ImFont* ImFontAtlas::AddFontDefault(const ImFontConfig* font_cfg_template)
++ {
++ ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
++ if (!font_cfg_template)
++ {
++ font_cfg.OversampleH = font_cfg.OversampleV = 1;
++ font_cfg.PixelSnapH = true;
++ }
++ if (font_cfg.SizePixels <= 0.0f)
++ font_cfg.SizePixels = 13.0f * 1.0f;
++ if (font_cfg.Name[0] == '\0')
++ ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "ProggyClean.ttf, %dpx", (int)font_cfg.SizePixels);
++ font_cfg.EllipsisChar = (ImWchar)0x0085;
++ font_cfg.GlyphOffset.y = 1.0f * IM_TRUNC(font_cfg.SizePixels / 13.0f); // Add +1 offset per 13 units
++
++ const char* ttf_compressed_base85 = GetDefaultCompressedFontDataTTFBase85();
++ const ImWchar* glyph_ranges = font_cfg.GlyphRanges != NULL ? font_cfg.GlyphRanges : GetGlyphRangesDefault();
++ ImFont* font = AddFontFromMemoryCompressedBase85TTF(ttf_compressed_base85, font_cfg.SizePixels, &font_cfg, glyph_ranges);
++ return font;
++ }
++
++ ImFont* ImFontAtlas::AddFontFromFileTTF(const char* filename, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
++ {
++ IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
++ size_t data_size = 0;
++ void* data = ImFileLoadToMemory(filename, "rb", &data_size, 0);
++ if (!data)
++ {
++ IM_ASSERT_USER_ERROR(0, "Could not load font file!");
++ return NULL;
++ }
++ ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
++ if (font_cfg.Name[0] == '\0')
++ {
++ // Store a short copy of filename into into the font name for convenience
++ const char* p;
++ for (p = filename + strlen(filename); p > filename && p[-1] != '/' && p[-1] != '\\'; p--) {}
++ ImFormatString(font_cfg.Name, IM_ARRAYSIZE(font_cfg.Name), "%s, %.0fpx", p, size_pixels);
++ }
++ return AddFontFromMemoryTTF(data, (int)data_size, size_pixels, &font_cfg, glyph_ranges);
++ }
++
++ // NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after Build().
++ ImFont* ImFontAtlas::AddFontFromMemoryTTF(void* font_data, int font_data_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
++ {
++ IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
++ ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
++ IM_ASSERT(font_cfg.FontData == NULL);
++ IM_ASSERT(font_data_size > 100 && "Incorrect value for font_data_size!"); // Heuristic to prevent accidentally passing a wrong value to font_data_size.
++ font_cfg.FontData = font_data;
++ font_cfg.FontDataSize = font_data_size;
++ font_cfg.SizePixels = size_pixels > 0.0f ? size_pixels : font_cfg.SizePixels;
++ if (glyph_ranges)
++ font_cfg.GlyphRanges = glyph_ranges;
++ return AddFont(&font_cfg);
++ }
++
++ ImFont* ImFontAtlas::AddFontFromMemoryCompressedTTF(const void* compressed_ttf_data, int compressed_ttf_size, float size_pixels, const ImFontConfig* font_cfg_template, const ImWchar* glyph_ranges)
++ {
++ const unsigned int buf_decompressed_size = stb_decompress_length((const unsigned char*)compressed_ttf_data);
++ unsigned char* buf_decompressed_data = (unsigned char*)IM_ALLOC(buf_decompressed_size);
++ stb_decompress(buf_decompressed_data, (const unsigned char*)compressed_ttf_data, (unsigned int)compressed_ttf_size);
++
++ ImFontConfig font_cfg = font_cfg_template ? *font_cfg_template : ImFontConfig();
++ IM_ASSERT(font_cfg.FontData == NULL);
++ font_cfg.FontDataOwnedByAtlas = true;
++ return AddFontFromMemoryTTF(buf_decompressed_data, (int)buf_decompressed_size, size_pixels, &font_cfg, glyph_ranges);
++ }
++
++ ImFont* ImFontAtlas::AddFontFromMemoryCompressedBase85TTF(const char* compressed_ttf_data_base85, float size_pixels, const ImFontConfig* font_cfg, const ImWchar* glyph_ranges)
++ {
++ int compressed_ttf_size = (((int)strlen(compressed_ttf_data_base85) + 4) / 5) * 4;
++ void* compressed_ttf = IM_ALLOC((size_t)compressed_ttf_size);
++ Decode85((const unsigned char*)compressed_ttf_data_base85, (unsigned char*)compressed_ttf);
++ ImFont* font = AddFontFromMemoryCompressedTTF(compressed_ttf, compressed_ttf_size, size_pixels, font_cfg, glyph_ranges);
++ IM_FREE(compressed_ttf);
++ return font;
++ }
++
++ int ImFontAtlas::AddCustomRectRegular(int width, int height)
++ {
++ IM_ASSERT(width > 0 && width <= 0xFFFF);
++ IM_ASSERT(height > 0 && height <= 0xFFFF);
++ ImFontAtlasCustomRect r;
++ r.Width = (unsigned short)width;
++ r.Height = (unsigned short)height;
++ CustomRects.push_back(r);
++ return CustomRects.Size - 1; // Return index
++ }
++
++ int ImFontAtlas::AddCustomRectFontGlyph(ImFont* font, ImWchar id, int width, int height, float advance_x, const ImVec2& offset)
++ {
++ #ifdef IMGUI_USE_WCHAR32
++ IM_ASSERT(id <= IM_UNICODE_CODEPOINT_MAX);
++ #endif
++ IM_ASSERT(font != NULL);
++ IM_ASSERT(width > 0 && width <= 0xFFFF);
++ IM_ASSERT(height > 0 && height <= 0xFFFF);
++ ImFontAtlasCustomRect r;
++ r.Width = (unsigned short)width;
++ r.Height = (unsigned short)height;
++ r.GlyphID = id;
++ r.GlyphAdvanceX = advance_x;
++ r.GlyphOffset = offset;
++ r.Font = font;
++ CustomRects.push_back(r);
++ return CustomRects.Size - 1; // Return index
++ }
++
++ void ImFontAtlas::CalcCustomRectUV(const ImFontAtlasCustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max) const
++ {
++ IM_ASSERT(TexWidth > 0 && TexHeight > 0); // Font atlas needs to be built before we can calculate UV coordinates
++ IM_ASSERT(rect->IsPacked()); // Make sure the rectangle has been packed
++ *out_uv_min = ImVec2((float)rect->X * TexUvScale.x, (float)rect->Y * TexUvScale.y);
++ *out_uv_max = ImVec2((float)(rect->X + rect->Width) * TexUvScale.x, (float)(rect->Y + rect->Height) * TexUvScale.y);
++ }
++
++ bool ImFontAtlas::GetMouseCursorTexData(ImGuiMouseCursor cursor_type, ImVec2* out_offset, ImVec2* out_size, ImVec2 out_uv_border[2], ImVec2 out_uv_fill[2])
++ {
++ if (cursor_type <= ImGuiMouseCursor_None || cursor_type >= ImGuiMouseCursor_COUNT)
++ return false;
++ if (Flags & ImFontAtlasFlags_NoMouseCursors)
++ return false;
++
++ IM_ASSERT(PackIdMouseCursors != -1);
++ ImFontAtlasCustomRect* r = GetCustomRectByIndex(PackIdMouseCursors);
++ ImVec2 pos = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][0] + ImVec2((float)r->X, (float)r->Y);
++ ImVec2 size = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][1];
++ *out_size = size;
++ *out_offset = FONT_ATLAS_DEFAULT_TEX_CURSOR_DATA[cursor_type][2];
++ out_uv_border[0] = (pos) * TexUvScale;
++ out_uv_border[1] = (pos + size) * TexUvScale;
++ pos.x += FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
++ out_uv_fill[0] = (pos) * TexUvScale;
++ out_uv_fill[1] = (pos + size) * TexUvScale;
++ return true;
++ }
++
++ bool ImFontAtlas::Build()
++ {
++ IM_ASSERT(!Locked && "Cannot modify a locked ImFontAtlas between NewFrame() and EndFrame/Render()!");
++
++ // Default font is none are specified
++ if (ConfigData.Size == 0)
++ AddFontDefault();
++
++ // Select builder
++ // - Note that we do not reassign to atlas->FontBuilderIO, since it is likely to point to static data which
++ // may mess with some hot-reloading schemes. If you need to assign to this (for dynamic selection) AND are
++ // using a hot-reloading scheme that messes up static data, store your own instance of ImFontBuilderIO somewhere
++ // and point to it instead of pointing directly to return value of the GetBuilderXXX functions.
++ const ImFontBuilderIO* builder_io = FontBuilderIO;
++ if (builder_io == NULL)
++ {
++ #ifdef IMGUI_ENABLE_FREETYPE
++ builder_io = ImGuiFreeType::GetBuilderForFreeType();
++ #elif defined(IMGUI_ENABLE_STB_TRUETYPE)
++ builder_io = ImFontAtlasGetBuilderForStbTruetype();
++ #else
++ IM_ASSERT(0); // Invalid Build function
++ #endif
++ }
++
++ // Build
++ return builder_io->FontBuilder_Build(this);
++ }
++
++ void ImFontAtlasBuildMultiplyCalcLookupTable(unsigned char out_table[256], float in_brighten_factor)
++ {
++ for (unsigned int i = 0; i < 256; i++)
++ {
++ unsigned int value = (unsigned int)(i * in_brighten_factor);
++ out_table[i] = value > 255 ? 255 : (value & 0xFF);
++ }
++ }
++
++ void ImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[256], unsigned char* pixels, int x, int y, int w, int h, int stride)
++ {
++ IM_ASSERT_PARANOID(w <= stride);
++ unsigned char* data = pixels + x + y * stride;
++ for (int j = h; j > 0; j--, data += stride - w)
++ for (int i = w; i > 0; i--, data++)
++ *data = table[*data];
++ }
++
++ #ifdef IMGUI_ENABLE_STB_TRUETYPE
++ // Temporary data for one source font (multiple source fonts can be merged into one destination ImFont)
++ // (C++03 doesn't allow instancing ImVector<> with function-local types so we declare the type here.)
++ struct ImFontBuildSrcData
++ {
++ stbtt_fontinfo FontInfo;
++ stbtt_pack_range PackRange; // Hold the list of codepoints to pack (essentially points to Codepoints.Data)
++ stbrp_rect* Rects; // Rectangle to pack. We first fill in their size and the packer will give us their position.
++ stbtt_packedchar* PackedChars; // Output glyphs
++ const ImWchar* SrcRanges; // Ranges as requested by user (user is allowed to request too much, e.g. 0x0020..0xFFFF)
++ int DstIndex; // Index into atlas->Fonts[] and dst_tmp_array[]
++ int GlyphsHighest; // Highest requested codepoint
++ int GlyphsCount; // Glyph count (excluding missing glyphs and glyphs already set by an earlier source font)
++ ImBitVector GlyphsSet; // Glyph bit map (random access, 1-bit per codepoint. This will be a maximum of 8KB)
++ ImVector<int> GlyphsList; // Glyph codepoints list (flattened version of GlyphsSet)
++ };
++
++ // Temporary data for one destination ImFont* (multiple source fonts can be merged into one destination ImFont)
++ struct ImFontBuildDstData
++ {
++ int SrcCount; // Number of source fonts targeting this destination font.
++ int GlyphsHighest;
++ int GlyphsCount;
++ ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
++ };
++
++ static void UnpackBitVectorToFlatIndexList(const ImBitVector* in, ImVector<int>* out)
++ {
++ IM_ASSERT(sizeof(in->Storage.Data[0]) == sizeof(int));
++ const ImU32* it_begin = in->Storage.begin();
++ const ImU32* it_end = in->Storage.end();
++ for (const ImU32* it = it_begin; it < it_end; it++)
++ if (ImU32 entries_32 = *it)
++ for (ImU32 bit_n = 0; bit_n < 32; bit_n++)
++ if (entries_32 & ((ImU32)1 << bit_n))
++ out->push_back((int)(((it - it_begin) << 5) + bit_n));
++ }
++
++ static bool ImFontAtlasBuildWithStbTruetype(ImFontAtlas* atlas)
++ {
++ IM_ASSERT(atlas->ConfigData.Size > 0);
++
++ ImFontAtlasBuildInit(atlas);
++
++ // Clear atlas
++ atlas->TexID = (ImTextureID)NULL;
++ atlas->TexWidth = atlas->TexHeight = 0;
++ atlas->TexUvScale = ImVec2(0.0f, 0.0f);
++ atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
++ atlas->ClearTexData();
++
++ // Temporary storage for building
++ ImVector<ImFontBuildSrcData> src_tmp_array;
++ ImVector<ImFontBuildDstData> dst_tmp_array;
++ src_tmp_array.resize(atlas->ConfigData.Size);
++ dst_tmp_array.resize(atlas->Fonts.Size);
++ memset(src_tmp_array.Data, 0, (size_t)src_tmp_array.size_in_bytes());
++ memset(dst_tmp_array.Data, 0, (size_t)dst_tmp_array.size_in_bytes());
++
++ // 1. Initialize font loading structure, check font data validity
++ for (int src_i = 0; src_i < atlas->ConfigData.Size; src_i++)
++ {
++ ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
++ ImFontConfig& cfg = atlas->ConfigData[src_i];
++ IM_ASSERT(cfg.DstFont && (!cfg.DstFont->IsLoaded() || cfg.DstFont->ContainerAtlas == atlas));
++
++ // Find index from cfg.DstFont (we allow the user to set cfg.DstFont. Also it makes casual debugging nicer than when storing indices)
++ src_tmp.DstIndex = -1;
++ for (int output_i = 0; output_i < atlas->Fonts.Size && src_tmp.DstIndex == -1; output_i++)
++ if (cfg.DstFont == atlas->Fonts[output_i])
++ src_tmp.DstIndex = output_i;
++ if (src_tmp.DstIndex == -1)
++ {
++ IM_ASSERT(src_tmp.DstIndex != -1); // cfg.DstFont not pointing within atlas->Fonts[] array?
++ return false;
++ }
++ // Initialize helper structure for font loading and verify that the TTF/OTF data is correct
++ const int font_offset = stbtt_GetFontOffsetForIndex((unsigned char*)cfg.FontData, cfg.FontNo);
++ IM_ASSERT(font_offset >= 0 && "FontData is incorrect, or FontNo cannot be found.");
++ if (!stbtt_InitFont(&src_tmp.FontInfo, (unsigned char*)cfg.FontData, font_offset))
++ {
++ IM_ASSERT(0 && "stbtt_InitFont(): failed to parse FontData. It is correct and complete? Check FontDataSize.");
++ return false;
++ }
++
++ // Measure highest codepoints
++ ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
++ src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
++ for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
++ {
++ // Check for valid range. This may also help detect *some* dangling pointers, because a common
++ // user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent.
++ IM_ASSERT(src_range[0] <= src_range[1]);
++ src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
++ }
++ dst_tmp.SrcCount++;
++ dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
++ }
++
++ // 2. For every requested codepoint, check for their presence in the font data, and handle redundancy or overlaps between source fonts to avoid unused glyphs.
++ int total_glyphs_count = 0;
++ for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
++ {
++ ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
++ ImFontBuildDstData& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
++ src_tmp.GlyphsSet.Create(src_tmp.GlyphsHighest + 1);
++ if (dst_tmp.GlyphsSet.Storage.empty())
++ dst_tmp.GlyphsSet.Create(dst_tmp.GlyphsHighest + 1);
++
++ for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
++ for (unsigned int codepoint = src_range[0]; codepoint <= src_range[1]; codepoint++)
++ {
++ if (dst_tmp.GlyphsSet.TestBit(codepoint)) // Don't overwrite existing glyphs. We could make this an option for MergeMode (e.g. MergeOverwrite==true)
++ continue;
++ if (!stbtt_FindGlyphIndex(&src_tmp.FontInfo, codepoint)) // It is actually in the font?
++ continue;
++
++ // Add to avail set/counters
++ src_tmp.GlyphsCount++;
++ dst_tmp.GlyphsCount++;
++ src_tmp.GlyphsSet.SetBit(codepoint);
++ dst_tmp.GlyphsSet.SetBit(codepoint);
++ total_glyphs_count++;
++ }
++ }
++
++ // 3. Unpack our bit map into a flat list (we now have all the Unicode points that we know are requested _and_ available _and_ not overlapping another)
++ for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
++ {
++ ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
++ src_tmp.GlyphsList.reserve(src_tmp.GlyphsCount);
++ UnpackBitVectorToFlatIndexList(&src_tmp.GlyphsSet, &src_tmp.GlyphsList);
++ src_tmp.GlyphsSet.Clear();
++ IM_ASSERT(src_tmp.GlyphsList.Size == src_tmp.GlyphsCount);
++ }
++ for (int dst_i = 0; dst_i < dst_tmp_array.Size; dst_i++)
++ dst_tmp_array[dst_i].GlyphsSet.Clear();
++ dst_tmp_array.clear();
++
++ // Allocate packing character data and flag packed characters buffer as non-packed (x0=y0=x1=y1=0)
++ // (We technically don't need to zero-clear buf_rects, but let's do it for the sake of sanity)
++ ImVector<stbrp_rect> buf_rects;
++ ImVector<stbtt_packedchar> buf_packedchars;
++ buf_rects.resize(total_glyphs_count);
++ buf_packedchars.resize(total_glyphs_count);
++ memset(buf_rects.Data, 0, (size_t)buf_rects.size_in_bytes());
++ memset(buf_packedchars.Data, 0, (size_t)buf_packedchars.size_in_bytes());
++
++ // 4. Gather glyphs sizes so we can pack them in our virtual canvas.
++ int total_surface = 0;
++ int buf_rects_out_n = 0;
++ int buf_packedchars_out_n = 0;
++ for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
++ {
++ ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
++ if (src_tmp.GlyphsCount == 0)
++ continue;
++
++ src_tmp.Rects = &buf_rects[buf_rects_out_n];
++ src_tmp.PackedChars = &buf_packedchars[buf_packedchars_out_n];
++ buf_rects_out_n += src_tmp.GlyphsCount;
++ buf_packedchars_out_n += src_tmp.GlyphsCount;
++
++ // Convert our ranges in the format stb_truetype wants
++ ImFontConfig& cfg = atlas->ConfigData[src_i];
++ src_tmp.PackRange.font_size = cfg.SizePixels * cfg.RasterizerDensity;
++ src_tmp.PackRange.first_unicode_codepoint_in_range = 0;
++ src_tmp.PackRange.array_of_unicode_codepoints = src_tmp.GlyphsList.Data;
++ src_tmp.PackRange.num_chars = src_tmp.GlyphsList.Size;
++ src_tmp.PackRange.chardata_for_range = src_tmp.PackedChars;
++ src_tmp.PackRange.h_oversample = (unsigned char)cfg.OversampleH;
++ src_tmp.PackRange.v_oversample = (unsigned char)cfg.OversampleV;
++
++ // Gather the sizes of all rectangles we will need to pack (this loop is based on stbtt_PackFontRangesGatherRects)
++ const float scale = (cfg.SizePixels > 0.0f) ? stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels * cfg.RasterizerDensity) : stbtt_ScaleForMappingEmToPixels(&src_tmp.FontInfo, -cfg.SizePixels * cfg.RasterizerDensity);
++ const int padding = atlas->TexGlyphPadding;
++ for (int glyph_i = 0; glyph_i < src_tmp.GlyphsList.Size; glyph_i++)
++ {
++ int x0, y0, x1, y1;
++ const int glyph_index_in_font = stbtt_FindGlyphIndex(&src_tmp.FontInfo, src_tmp.GlyphsList[glyph_i]);
++ IM_ASSERT(glyph_index_in_font != 0);
++ stbtt_GetGlyphBitmapBoxSubpixel(&src_tmp.FontInfo, glyph_index_in_font, scale * cfg.OversampleH, scale * cfg.OversampleV, 0, 0, &x0, &y0, &x1, &y1);
++ src_tmp.Rects[glyph_i].w = (stbrp_coord)(x1 - x0 + padding + cfg.OversampleH - 1);
++ src_tmp.Rects[glyph_i].h = (stbrp_coord)(y1 - y0 + padding + cfg.OversampleV - 1);
++ total_surface += src_tmp.Rects[glyph_i].w * src_tmp.Rects[glyph_i].h;
++ }
++ }
++
++ // We need a width for the skyline algorithm, any width!
++ // The exact width doesn't really matter much, but some API/GPU have texture size limitations and increasing width can decrease height.
++ // User can override TexDesiredWidth and TexGlyphPadding if they wish, otherwise we use a simple heuristic to select the width based on expected surface.
++ const int surface_sqrt = (int)ImSqrt((float)total_surface) + 1;
++ atlas->TexHeight = 0;
++ if (atlas->TexDesiredWidth > 0)
++ atlas->TexWidth = atlas->TexDesiredWidth;
++ else
++ atlas->TexWidth = (surface_sqrt >= 4096 * 0.7f) ? 4096 : (surface_sqrt >= 2048 * 0.7f) ? 2048 : (surface_sqrt >= 1024 * 0.7f) ? 1024 : 512;
++
++ // 5. Start packing
++ // Pack our extra data rectangles first, so it will be on the upper-left corner of our texture (UV will have small values).
++ const int TEX_HEIGHT_MAX = 1024 * 32;
++ stbtt_pack_context spc = {};
++ stbtt_PackBegin(&spc, NULL, atlas->TexWidth, TEX_HEIGHT_MAX, 0, atlas->TexGlyphPadding, NULL);
++ ImFontAtlasBuildPackCustomRects(atlas, spc.pack_info);
++
++ // 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
++ for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
++ {
++ ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
++ if (src_tmp.GlyphsCount == 0)
++ continue;
++
++ stbrp_pack_rects((stbrp_context*)spc.pack_info, src_tmp.Rects, src_tmp.GlyphsCount);
++
++ // Extend texture height and mark missing glyphs as non-packed so we won't render them.
++ // FIXME: We are not handling packing failure here (would happen if we got off TEX_HEIGHT_MAX or if a single if larger than TexWidth?)
++ for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
++ if (src_tmp.Rects[glyph_i].was_packed)
++ atlas->TexHeight = ImMax(atlas->TexHeight, src_tmp.Rects[glyph_i].y + src_tmp.Rects[glyph_i].h);
++ }
++
++ // 7. Allocate texture
++ atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
++ atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
++ atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
++ memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
++ spc.pixels = atlas->TexPixelsAlpha8;
++ spc.height = atlas->TexHeight;
++
++ // 8. Render/rasterize font characters into the texture
++ for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
++ {
++ ImFontConfig& cfg = atlas->ConfigData[src_i];
++ ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
++ if (src_tmp.GlyphsCount == 0)
++ continue;
++
++ stbtt_PackFontRangesRenderIntoRects(&spc, &src_tmp.FontInfo, &src_tmp.PackRange, 1, src_tmp.Rects);
++
++ // Apply multiply operator
++ if (cfg.RasterizerMultiply != 1.0f)
++ {
++ unsigned char multiply_table[256];
++ ImFontAtlasBuildMultiplyCalcLookupTable(multiply_table, cfg.RasterizerMultiply);
++ stbrp_rect* r = &src_tmp.Rects[0];
++ for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++, r++)
++ if (r->was_packed)
++ ImFontAtlasBuildMultiplyRectAlpha8(multiply_table, atlas->TexPixelsAlpha8, r->x, r->y, r->w, r->h, atlas->TexWidth * 1);
++ }
++ src_tmp.Rects = NULL;
++ }
++
++ // End packing
++ stbtt_PackEnd(&spc);
++ buf_rects.clear();
++
++ // 9. Setup ImFont and glyphs for runtime
++ for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
++ {
++ // When merging fonts with MergeMode=true:
++ // - We can have multiple input fonts writing into a same destination font.
++ // - dst_font->ConfigData is != from cfg which is our source configuration.
++ ImFontBuildSrcData& src_tmp = src_tmp_array[src_i];
++ ImFontConfig& cfg = atlas->ConfigData[src_i];
++ ImFont* dst_font = cfg.DstFont;
++
++ const float font_scale = stbtt_ScaleForPixelHeight(&src_tmp.FontInfo, cfg.SizePixels);
++ int unscaled_ascent, unscaled_descent, unscaled_line_gap;
++ stbtt_GetFontVMetrics(&src_tmp.FontInfo, &unscaled_ascent, &unscaled_descent, &unscaled_line_gap);
++
++ const float ascent = ImCeil(unscaled_ascent * font_scale);
++ const float descent = ImFloor(unscaled_descent * font_scale);
++ ImFontAtlasBuildSetupFont(atlas, dst_font, &cfg, ascent, descent);
++ const float font_off_x = cfg.GlyphOffset.x;
++ const float font_off_y = cfg.GlyphOffset.y + IM_ROUND(dst_font->Ascent);
++
++ const float inv_rasterization_scale = 1.0f / cfg.RasterizerDensity;
++
++ for (int glyph_i = 0; glyph_i < src_tmp.GlyphsCount; glyph_i++)
++ {
++ // Register glyph
++ const int codepoint = src_tmp.GlyphsList[glyph_i];
++ const stbtt_packedchar& pc = src_tmp.PackedChars[glyph_i];
++ stbtt_aligned_quad q;
++ float unused_x = 0.0f, unused_y = 0.0f;
++ stbtt_GetPackedQuad(src_tmp.PackedChars, atlas->TexWidth, atlas->TexHeight, glyph_i, &unused_x, &unused_y, &q, 0);
++ float x0 = q.x0 * inv_rasterization_scale + font_off_x;
++ float y0 = q.y0 * inv_rasterization_scale + font_off_y;
++ float x1 = q.x1 * inv_rasterization_scale + font_off_x;
++ float y1 = q.y1 * inv_rasterization_scale + font_off_y;
++ dst_font->AddGlyph(&cfg, (ImWchar)codepoint, x0, y0, x1, y1, q.s0, q.t0, q.s1, q.t1, pc.xadvance * inv_rasterization_scale);
++ }
++ }
++
++ // Cleanup
++ src_tmp_array.clear_destruct();
++
++ ImFontAtlasBuildFinish(atlas);
++ return true;
++ }
++
++ const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype()
++ {
++ static ImFontBuilderIO io;
++ io.FontBuilder_Build = ImFontAtlasBuildWithStbTruetype;
++ return &io;
++ }
++
++ #endif // IMGUI_ENABLE_STB_TRUETYPE
++
++ void ImFontAtlasUpdateConfigDataPointers(ImFontAtlas* atlas)
++ {
++ for (ImFontConfig& font_cfg : atlas->ConfigData)
++ {
++ ImFont* font = font_cfg.DstFont;
++ if (!font_cfg.MergeMode)
++ {
++ font->ConfigData = &font_cfg;
++ font->ConfigDataCount = 0;
++ }
++ font->ConfigDataCount++;
++ }
++ }
++
++ void ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent)
++ {
++ if (!font_config->MergeMode)
++ {
++ font->ClearOutputData();
++ font->FontSize = font_config->SizePixels;
++ IM_ASSERT(font->ConfigData == font_config);
++ font->ContainerAtlas = atlas;
++ font->Ascent = ascent;
++ font->Descent = descent;
++ }
++ }
++
++ void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque)
++ {
++ stbrp_context* pack_context = (stbrp_context*)stbrp_context_opaque;
++ IM_ASSERT(pack_context != NULL);
++
++ ImVector<ImFontAtlasCustomRect>& user_rects = atlas->CustomRects;
++ IM_ASSERT(user_rects.Size >= 1); // We expect at least the default custom rects to be registered, else something went wrong.
++ #ifdef __GNUC__
++ if (user_rects.Size < 1) { __builtin_unreachable(); } // Workaround for GCC bug if IM_ASSERT() is defined to conditionally throw (see #5343)
++ #endif
++
++ ImVector<stbrp_rect> pack_rects;
++ pack_rects.resize(user_rects.Size);
++ memset(pack_rects.Data, 0, (size_t)pack_rects.size_in_bytes());
++ for (int i = 0; i < user_rects.Size; i++)
++ {
++ pack_rects[i].w = user_rects[i].Width;
++ pack_rects[i].h = user_rects[i].Height;
++ }
++ stbrp_pack_rects(pack_context, &pack_rects[0], pack_rects.Size);
++ for (int i = 0; i < pack_rects.Size; i++)
++ if (pack_rects[i].was_packed)
++ {
++ user_rects[i].X = (unsigned short)pack_rects[i].x;
++ user_rects[i].Y = (unsigned short)pack_rects[i].y;
++ IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
++ atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
++ }
++ }
++
++ void ImFontAtlasBuildRender8bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned char in_marker_pixel_value)
++ {
++ IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
++ IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
++ unsigned char* out_pixel = atlas->TexPixelsAlpha8 + x + (y * atlas->TexWidth);
++ for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
++ for (int off_x = 0; off_x < w; off_x++)
++ out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : 0x00;
++ }
++
++ void ImFontAtlasBuildRender32bppRectFromString(ImFontAtlas* atlas, int x, int y, int w, int h, const char* in_str, char in_marker_char, unsigned int in_marker_pixel_value)
++ {
++ IM_ASSERT(x >= 0 && x + w <= atlas->TexWidth);
++ IM_ASSERT(y >= 0 && y + h <= atlas->TexHeight);
++ unsigned int* out_pixel = atlas->TexPixelsRGBA32 + x + (y * atlas->TexWidth);
++ for (int off_y = 0; off_y < h; off_y++, out_pixel += atlas->TexWidth, in_str += w)
++ for (int off_x = 0; off_x < w; off_x++)
++ out_pixel[off_x] = (in_str[off_x] == in_marker_char) ? in_marker_pixel_value : IM_COL32_BLACK_TRANS;
++ }
++
++ static void ImFontAtlasBuildRenderDefaultTexData(ImFontAtlas* atlas)
++ {
++ ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdMouseCursors);
++ IM_ASSERT(r->IsPacked());
++
++ const int w = atlas->TexWidth;
++ if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
++ {
++ // Render/copy pixels
++ IM_ASSERT(r->Width == FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1 && r->Height == FONT_ATLAS_DEFAULT_TEX_DATA_H);
++ const int x_for_white = r->X;
++ const int x_for_black = r->X + FONT_ATLAS_DEFAULT_TEX_DATA_W + 1;
++ if (atlas->TexPixelsAlpha8 != NULL)
++ {
++ ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', 0xFF);
++ ImFontAtlasBuildRender8bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', 0xFF);
++ }
++ else
++ {
++ ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_white, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, '.', IM_COL32_WHITE);
++ ImFontAtlasBuildRender32bppRectFromString(atlas, x_for_black, r->Y, FONT_ATLAS_DEFAULT_TEX_DATA_W, FONT_ATLAS_DEFAULT_TEX_DATA_H, FONT_ATLAS_DEFAULT_TEX_DATA_PIXELS, 'X', IM_COL32_WHITE);
++ }
++ }
++ else
++ {
++ // Render 4 white pixels
++ IM_ASSERT(r->Width == 2 && r->Height == 2);
++ const int offset = (int)r->X + (int)r->Y * w;
++ if (atlas->TexPixelsAlpha8 != NULL)
++ {
++ atlas->TexPixelsAlpha8[offset] = atlas->TexPixelsAlpha8[offset + 1] = atlas->TexPixelsAlpha8[offset + w] = atlas->TexPixelsAlpha8[offset + w + 1] = 0xFF;
++ }
++ else
++ {
++ atlas->TexPixelsRGBA32[offset] = atlas->TexPixelsRGBA32[offset + 1] = atlas->TexPixelsRGBA32[offset + w] = atlas->TexPixelsRGBA32[offset + w + 1] = IM_COL32_WHITE;
++ }
++ }
++ atlas->TexUvWhitePixel = ImVec2((r->X + 0.5f) * atlas->TexUvScale.x, (r->Y + 0.5f) * atlas->TexUvScale.y);
++ }
++
++ static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
++ {
++ if (atlas->Flags & ImFontAtlasFlags_NoBakedLines)
++ return;
++
++ // This generates a triangular shape in the texture, with the various line widths stacked on top of each other to allow interpolation between them
++ ImFontAtlasCustomRect* r = atlas->GetCustomRectByIndex(atlas->PackIdLines);
++ IM_ASSERT(r->IsPacked());
++ for (unsigned int n = 0; n < IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1; n++) // +1 because of the zero-width row
++ {
++ // Each line consists of at least two empty pixels at the ends, with a line of solid pixels in the middle
++ unsigned int y = n;
++ unsigned int line_width = n;
++ unsigned int pad_left = (r->Width - line_width) / 2;
++ unsigned int pad_right = r->Width - (pad_left + line_width);
++
++ // Write each slice
++ IM_ASSERT(pad_left + line_width + pad_right == r->Width && y < r->Height); // Make sure we're inside the texture bounds before we start writing pixels
++ if (atlas->TexPixelsAlpha8 != NULL)
++ {
++ unsigned char* write_ptr = &atlas->TexPixelsAlpha8[r->X + ((r->Y + y) * atlas->TexWidth)];
++ for (unsigned int i = 0; i < pad_left; i++)
++ *(write_ptr + i) = 0x00;
++
++ for (unsigned int i = 0; i < line_width; i++)
++ *(write_ptr + pad_left + i) = 0xFF;
++
++ for (unsigned int i = 0; i < pad_right; i++)
++ *(write_ptr + pad_left + line_width + i) = 0x00;
++ }
++ else
++ {
++ unsigned int* write_ptr = &atlas->TexPixelsRGBA32[r->X + ((r->Y + y) * atlas->TexWidth)];
++ for (unsigned int i = 0; i < pad_left; i++)
++ *(write_ptr + i) = IM_COL32(255, 255, 255, 0);
++
++ for (unsigned int i = 0; i < line_width; i++)
++ *(write_ptr + pad_left + i) = IM_COL32_WHITE;
++
++ for (unsigned int i = 0; i < pad_right; i++)
++ *(write_ptr + pad_left + line_width + i) = IM_COL32(255, 255, 255, 0);
++ }
++
++ // Calculate UVs for this line
++ ImVec2 uv0 = ImVec2((float)(r->X + pad_left - 1), (float)(r->Y + y)) * atlas->TexUvScale;
++ ImVec2 uv1 = ImVec2((float)(r->X + pad_left + line_width + 1), (float)(r->Y + y + 1)) * atlas->TexUvScale;
++ float half_v = (uv0.y + uv1.y) * 0.5f; // Calculate a constant V in the middle of the row to avoid sampling artifacts
++ atlas->TexUvLines[n] = ImVec4(uv0.x, half_v, uv1.x, half_v);
++ }
++ }
++
++ // Note: this is called / shared by both the stb_truetype and the FreeType builder
++ void ImFontAtlasBuildInit(ImFontAtlas* atlas)
++ {
++ // Round font size
++ // - We started rounding in 1.90 WIP (18991) as our layout system currently doesn't support non-rounded font size well yet.
++ // - Note that using io.FontGlobalScale or SetWindowFontScale(), with are legacy-ish, partially supported features, can still lead to unrounded sizes.
++ // - We may support it better later and remove this rounding.
++ for (ImFontConfig& cfg : atlas->ConfigData)
++ cfg.SizePixels = ImTrunc(cfg.SizePixels);
++
++ // Register texture region for mouse cursors or standard white pixels
++ if (atlas->PackIdMouseCursors < 0)
++ {
++ if (!(atlas->Flags & ImFontAtlasFlags_NoMouseCursors))
++ atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(FONT_ATLAS_DEFAULT_TEX_DATA_W * 2 + 1, FONT_ATLAS_DEFAULT_TEX_DATA_H);
++ else
++ atlas->PackIdMouseCursors = atlas->AddCustomRectRegular(2, 2);
++ }
++
++ // Register texture region for thick lines
++ // The +2 here is to give space for the end caps, whilst height +1 is to accommodate the fact we have a zero-width row
++ if (atlas->PackIdLines < 0)
++ {
++ if (!(atlas->Flags & ImFontAtlasFlags_NoBakedLines))
++ atlas->PackIdLines = atlas->AddCustomRectRegular(IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 2, IM_DRAWLIST_TEX_LINES_WIDTH_MAX + 1);
++ }
++ }
++
++ // This is called/shared by both the stb_truetype and the FreeType builder.
++ void ImFontAtlasBuildFinish(ImFontAtlas* atlas)
++ {
++ // Render into our custom data blocks
++ IM_ASSERT(atlas->TexPixelsAlpha8 != NULL || atlas->TexPixelsRGBA32 != NULL);
++ ImFontAtlasBuildRenderDefaultTexData(atlas);
++ ImFontAtlasBuildRenderLinesTexData(atlas);
++
++ // Register custom rectangle glyphs
++ for (int i = 0; i < atlas->CustomRects.Size; i++)
++ {
++ const ImFontAtlasCustomRect* r = &atlas->CustomRects[i];
++ if (r->Font == NULL || r->GlyphID == 0)
++ continue;
++
++ // Will ignore ImFontConfig settings: GlyphMinAdvanceX, GlyphMinAdvanceY, GlyphExtraSpacing, PixelSnapH
++ IM_ASSERT(r->Font->ContainerAtlas == atlas);
++ ImVec2 uv0, uv1;
++ atlas->CalcCustomRectUV(r, &uv0, &uv1);
++ r->Font->AddGlyph(NULL, (ImWchar)r->GlyphID, r->GlyphOffset.x, r->GlyphOffset.y, r->GlyphOffset.x + r->Width, r->GlyphOffset.y + r->Height, uv0.x, uv0.y, uv1.x, uv1.y, r->GlyphAdvanceX);
++ }
++
++ // Build all fonts lookup tables
++ for (ImFont* font : atlas->Fonts)
++ if (font->DirtyLookupTables)
++ font->BuildLookupTable();
++
++ atlas->TexReady = true;
++ }
++
++ // Retrieve list of range (2 int per range, values are inclusive)
++ const ImWchar* ImFontAtlas::GetGlyphRangesDefault()
++ {
++ static const ImWchar ranges[] =
++ {
++ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
++ 0,
++ };
++ return &ranges[0];
++ }
++
++ const ImWchar* ImFontAtlas::GetGlyphRangesGreek()
++ {
++ static const ImWchar ranges[] =
++ {
++ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
++ 0x0370, 0x03FF, // Greek and Coptic
++ 0,
++ };
++ return &ranges[0];
++ }
++
++ const ImWchar* ImFontAtlas::GetGlyphRangesKorean()
++ {
++ static const ImWchar ranges[] =
++ {
++ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
++ 0x3131, 0x3163, // Korean alphabets
++ 0xAC00, 0xD7A3, // Korean characters
++ 0xFFFD, 0xFFFD, // Invalid
++ 0,
++ };
++ return &ranges[0];
++ }
++
++ const ImWchar* ImFontAtlas::GetGlyphRangesChineseFull()
++ {
++ static const ImWchar ranges[] =
++ {
++ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
++ 0x2000, 0x206F, // General Punctuation
++ 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
++ 0x31F0, 0x31FF, // Katakana Phonetic Extensions
++ 0xFF00, 0xFFEF, // Half-width characters
++ 0xFFFD, 0xFFFD, // Invalid
++ 0x4e00, 0x9FAF, // CJK Ideograms
++ 0,
++ };
++ return &ranges[0];
++ }
++
++ static void UnpackAccumulativeOffsetsIntoRanges(int base_codepoint, const short* accumulative_offsets, int accumulative_offsets_count, ImWchar* out_ranges)
++ {
++ for (int n = 0; n < accumulative_offsets_count; n++, out_ranges += 2)
++ {
++ out_ranges[0] = out_ranges[1] = (ImWchar)(base_codepoint + accumulative_offsets[n]);
++ base_codepoint += accumulative_offsets[n];
++ }
++ out_ranges[0] = 0;
++ }
++
++ //-------------------------------------------------------------------------
++ // [SECTION] ImFontAtlas glyph ranges helpers
++ //-------------------------------------------------------------------------
++
++ const ImWchar* ImFontAtlas::GetGlyphRangesChineseSimplifiedCommon()
++ {
++ // Store 2500 regularly used characters for Simplified Chinese.
++ // This table covers 97.97% of all characters used during the month in July, 1987.
++ // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
++ // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
++ static const short accumulative_offsets_from_0x4E00[] =
++ {
++ 0,1,2,4,1,1,1,1,2,1,3,2,1,2,2,1,1,1,1,1,5,2,1,2,3,3,3,2,2,4,1,1,1,2,1,5,2,3,1,2,1,2,1,1,2,1,1,2,2,1,4,1,1,1,1,5,10,1,2,19,2,1,2,1,2,1,2,1,2,
++ 1,5,1,6,3,2,1,2,2,1,1,1,4,8,5,1,1,4,1,1,3,1,2,1,5,1,2,1,1,1,10,1,1,5,2,4,6,1,4,2,2,2,12,2,1,1,6,1,1,1,4,1,1,4,6,5,1,4,2,2,4,10,7,1,1,4,2,4,
++ 2,1,4,3,6,10,12,5,7,2,14,2,9,1,1,6,7,10,4,7,13,1,5,4,8,4,1,1,2,28,5,6,1,1,5,2,5,20,2,2,9,8,11,2,9,17,1,8,6,8,27,4,6,9,20,11,27,6,68,2,2,1,1,
++ 1,2,1,2,2,7,6,11,3,3,1,1,3,1,2,1,1,1,1,1,3,1,1,8,3,4,1,5,7,2,1,4,4,8,4,2,1,2,1,1,4,5,6,3,6,2,12,3,1,3,9,2,4,3,4,1,5,3,3,1,3,7,1,5,1,1,1,1,2,
++ 3,4,5,2,3,2,6,1,1,2,1,7,1,7,3,4,5,15,2,2,1,5,3,22,19,2,1,1,1,1,2,5,1,1,1,6,1,1,12,8,2,9,18,22,4,1,1,5,1,16,1,2,7,10,15,1,1,6,2,4,1,2,4,1,6,
++ 1,1,3,2,4,1,6,4,5,1,2,1,1,2,1,10,3,1,3,2,1,9,3,2,5,7,2,19,4,3,6,1,1,1,1,1,4,3,2,1,1,1,2,5,3,1,1,1,2,2,1,1,2,1,1,2,1,3,1,1,1,3,7,1,4,1,1,2,1,
++ 1,2,1,2,4,4,3,8,1,1,1,2,1,3,5,1,3,1,3,4,6,2,2,14,4,6,6,11,9,1,15,3,1,28,5,2,5,5,3,1,3,4,5,4,6,14,3,2,3,5,21,2,7,20,10,1,2,19,2,4,28,28,2,3,
++ 2,1,14,4,1,26,28,42,12,40,3,52,79,5,14,17,3,2,2,11,3,4,6,3,1,8,2,23,4,5,8,10,4,2,7,3,5,1,1,6,3,1,2,2,2,5,28,1,1,7,7,20,5,3,29,3,17,26,1,8,4,
++ 27,3,6,11,23,5,3,4,6,13,24,16,6,5,10,25,35,7,3,2,3,3,14,3,6,2,6,1,4,2,3,8,2,1,1,3,3,3,4,1,1,13,2,2,4,5,2,1,14,14,1,2,2,1,4,5,2,3,1,14,3,12,
++ 3,17,2,16,5,1,2,1,8,9,3,19,4,2,2,4,17,25,21,20,28,75,1,10,29,103,4,1,2,1,1,4,2,4,1,2,3,24,2,2,2,1,1,2,1,3,8,1,1,1,2,1,1,3,1,1,1,6,1,5,3,1,1,
++ 1,3,4,1,1,5,2,1,5,6,13,9,16,1,1,1,1,3,2,3,2,4,5,2,5,2,2,3,7,13,7,2,2,1,1,1,1,2,3,3,2,1,6,4,9,2,1,14,2,14,2,1,18,3,4,14,4,11,41,15,23,15,23,
++ 176,1,3,4,1,1,1,1,5,3,1,2,3,7,3,1,1,2,1,2,4,4,6,2,4,1,9,7,1,10,5,8,16,29,1,1,2,2,3,1,3,5,2,4,5,4,1,1,2,2,3,3,7,1,6,10,1,17,1,44,4,6,2,1,1,6,
++ 5,4,2,10,1,6,9,2,8,1,24,1,2,13,7,8,8,2,1,4,1,3,1,3,3,5,2,5,10,9,4,9,12,2,1,6,1,10,1,1,7,7,4,10,8,3,1,13,4,3,1,6,1,3,5,2,1,2,17,16,5,2,16,6,
++ 1,4,2,1,3,3,6,8,5,11,11,1,3,3,2,4,6,10,9,5,7,4,7,4,7,1,1,4,2,1,3,6,8,7,1,6,11,5,5,3,24,9,4,2,7,13,5,1,8,82,16,61,1,1,1,4,2,2,16,10,3,8,1,1,
++ 6,4,2,1,3,1,1,1,4,3,8,4,2,2,1,1,1,1,1,6,3,5,1,1,4,6,9,2,1,1,1,2,1,7,2,1,6,1,5,4,4,3,1,8,1,3,3,1,3,2,2,2,2,3,1,6,1,2,1,2,1,3,7,1,8,2,1,2,1,5,
++ 2,5,3,5,10,1,2,1,1,3,2,5,11,3,9,3,5,1,1,5,9,1,2,1,5,7,9,9,8,1,3,3,3,6,8,2,3,2,1,1,32,6,1,2,15,9,3,7,13,1,3,10,13,2,14,1,13,10,2,1,3,10,4,15,
++ 2,15,15,10,1,3,9,6,9,32,25,26,47,7,3,2,3,1,6,3,4,3,2,8,5,4,1,9,4,2,2,19,10,6,2,3,8,1,2,2,4,2,1,9,4,4,4,6,4,8,9,2,3,1,1,1,1,3,5,5,1,3,8,4,6,
++ 2,1,4,12,1,5,3,7,13,2,5,8,1,6,1,2,5,14,6,1,5,2,4,8,15,5,1,23,6,62,2,10,1,1,8,1,2,2,10,4,2,2,9,2,1,1,3,2,3,1,5,3,3,2,1,3,8,1,1,1,11,3,1,1,4,
++ 3,7,1,14,1,2,3,12,5,2,5,1,6,7,5,7,14,11,1,3,1,8,9,12,2,1,11,8,4,4,2,6,10,9,13,1,1,3,1,5,1,3,2,4,4,1,18,2,3,14,11,4,29,4,2,7,1,3,13,9,2,2,5,
++ 3,5,20,7,16,8,5,72,34,6,4,22,12,12,28,45,36,9,7,39,9,191,1,1,1,4,11,8,4,9,2,3,22,1,1,1,1,4,17,1,7,7,1,11,31,10,2,4,8,2,3,2,1,4,2,16,4,32,2,
++ 3,19,13,4,9,1,5,2,14,8,1,1,3,6,19,6,5,1,16,6,2,10,8,5,1,2,3,1,5,5,1,11,6,6,1,3,3,2,6,3,8,1,1,4,10,7,5,7,7,5,8,9,2,1,3,4,1,1,3,1,3,3,2,6,16,
++ 1,4,6,3,1,10,6,1,3,15,2,9,2,10,25,13,9,16,6,2,2,10,11,4,3,9,1,2,6,6,5,4,30,40,1,10,7,12,14,33,6,3,6,7,3,1,3,1,11,14,4,9,5,12,11,49,18,51,31,
++ 140,31,2,2,1,5,1,8,1,10,1,4,4,3,24,1,10,1,3,6,6,16,3,4,5,2,1,4,2,57,10,6,22,2,22,3,7,22,6,10,11,36,18,16,33,36,2,5,5,1,1,1,4,10,1,4,13,2,7,
++ 5,2,9,3,4,1,7,43,3,7,3,9,14,7,9,1,11,1,1,3,7,4,18,13,1,14,1,3,6,10,73,2,2,30,6,1,11,18,19,13,22,3,46,42,37,89,7,3,16,34,2,2,3,9,1,7,1,1,1,2,
++ 2,4,10,7,3,10,3,9,5,28,9,2,6,13,7,3,1,3,10,2,7,2,11,3,6,21,54,85,2,1,4,2,2,1,39,3,21,2,2,5,1,1,1,4,1,1,3,4,15,1,3,2,4,4,2,3,8,2,20,1,8,7,13,
++ 4,1,26,6,2,9,34,4,21,52,10,4,4,1,5,12,2,11,1,7,2,30,12,44,2,30,1,1,3,6,16,9,17,39,82,2,2,24,7,1,7,3,16,9,14,44,2,1,2,1,2,3,5,2,4,1,6,7,5,3,
++ 2,6,1,11,5,11,2,1,18,19,8,1,3,24,29,2,1,3,5,2,2,1,13,6,5,1,46,11,3,5,1,1,5,8,2,10,6,12,6,3,7,11,2,4,16,13,2,5,1,1,2,2,5,2,28,5,2,23,10,8,4,
++ 4,22,39,95,38,8,14,9,5,1,13,5,4,3,13,12,11,1,9,1,27,37,2,5,4,4,63,211,95,2,2,2,1,3,5,2,1,1,2,2,1,1,1,3,2,4,1,2,1,1,5,2,2,1,1,2,3,1,3,1,1,1,
++ 3,1,4,2,1,3,6,1,1,3,7,15,5,3,2,5,3,9,11,4,2,22,1,6,3,8,7,1,4,28,4,16,3,3,25,4,4,27,27,1,4,1,2,2,7,1,3,5,2,28,8,2,14,1,8,6,16,25,3,3,3,14,3,
++ 3,1,1,2,1,4,6,3,8,4,1,1,1,2,3,6,10,6,2,3,18,3,2,5,5,4,3,1,5,2,5,4,23,7,6,12,6,4,17,11,9,5,1,1,10,5,12,1,1,11,26,33,7,3,6,1,17,7,1,5,12,1,11,
++ 2,4,1,8,14,17,23,1,2,1,7,8,16,11,9,6,5,2,6,4,16,2,8,14,1,11,8,9,1,1,1,9,25,4,11,19,7,2,15,2,12,8,52,7,5,19,2,16,4,36,8,1,16,8,24,26,4,6,2,9,
++ 5,4,36,3,28,12,25,15,37,27,17,12,59,38,5,32,127,1,2,9,17,14,4,1,2,1,1,8,11,50,4,14,2,19,16,4,17,5,4,5,26,12,45,2,23,45,104,30,12,8,3,10,2,2,
++ 3,3,1,4,20,7,2,9,6,15,2,20,1,3,16,4,11,15,6,134,2,5,59,1,2,2,2,1,9,17,3,26,137,10,211,59,1,2,4,1,4,1,1,1,2,6,2,3,1,1,2,3,2,3,1,3,4,4,2,3,3,
++ 1,4,3,1,7,2,2,3,1,2,1,3,3,3,2,2,3,2,1,3,14,6,1,3,2,9,6,15,27,9,34,145,1,1,2,1,1,1,1,2,1,1,1,1,2,2,2,3,1,2,1,1,1,2,3,5,8,3,5,2,4,1,3,2,2,2,12,
++ 4,1,1,1,10,4,5,1,20,4,16,1,15,9,5,12,2,9,2,5,4,2,26,19,7,1,26,4,30,12,15,42,1,6,8,172,1,1,4,2,1,1,11,2,2,4,2,1,2,1,10,8,1,2,1,4,5,1,2,5,1,8,
++ 4,1,3,4,2,1,6,2,1,3,4,1,2,1,1,1,1,12,5,7,2,4,3,1,1,1,3,3,6,1,2,2,3,3,3,2,1,2,12,14,11,6,6,4,12,2,8,1,7,10,1,35,7,4,13,15,4,3,23,21,28,52,5,
++ 26,5,6,1,7,10,2,7,53,3,2,1,1,1,2,163,532,1,10,11,1,3,3,4,8,2,8,6,2,2,23,22,4,2,2,4,2,1,3,1,3,3,5,9,8,2,1,2,8,1,10,2,12,21,20,15,105,2,3,1,1,
++ 3,2,3,1,1,2,5,1,4,15,11,19,1,1,1,1,5,4,5,1,1,2,5,3,5,12,1,2,5,1,11,1,1,15,9,1,4,5,3,26,8,2,1,3,1,1,15,19,2,12,1,2,5,2,7,2,19,2,20,6,26,7,5,
++ 2,2,7,34,21,13,70,2,128,1,1,2,1,1,2,1,1,3,2,2,2,15,1,4,1,3,4,42,10,6,1,49,85,8,1,2,1,1,4,4,2,3,6,1,5,7,4,3,211,4,1,2,1,2,5,1,2,4,2,2,6,5,6,
++ 10,3,4,48,100,6,2,16,296,5,27,387,2,2,3,7,16,8,5,38,15,39,21,9,10,3,7,59,13,27,21,47,5,21,6
++ };
++ static ImWchar base_ranges[] = // not zero-terminated
++ {
++ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
++ 0x2000, 0x206F, // General Punctuation
++ 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
++ 0x31F0, 0x31FF, // Katakana Phonetic Extensions
++ 0xFF00, 0xFFEF, // Half-width characters
++ 0xFFFD, 0xFFFD // Invalid
++ };
++ static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00) * 2 + 1] = { 0 };
++ if (!full_ranges[0])
++ {
++ memcpy(full_ranges, base_ranges, sizeof(base_ranges));
++ UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
++ }
++ return &full_ranges[0];
++ }
++
++ const ImWchar* ImFontAtlas::GetGlyphRangesJapanese()
++ {
++ // 2999 ideograms code points for Japanese
++ // - 2136 Joyo (meaning "for regular use" or "for common use") Kanji code points
++ // - 863 Jinmeiyo (meaning "for personal name") Kanji code points
++ // - Sourced from official information provided by the government agencies of Japan:
++ // - List of Joyo Kanji by the Agency for Cultural Affairs
++ // - List of Jinmeiyo Kanji by the Ministry of Justice
++ // - Available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0).
++ // - You can generate this code by the script at:
++ // - References:
++ // - List of Joyo Kanji
++ // - List of Jinmeiyo Kanji
++ // - Missing 1 Joyo Kanji: U+20B9F (Kun'yomi: Shikaru, On'yomi: Shitsu,shichi), see https://github.com/ocornut/imgui/pull/3627 for details.
++ // You can use ImFontGlyphRangesBuilder to create your own ranges derived from this, by merging existing ranges or adding new characters.
++ // (Stored as accumulative offsets from the initial unicode codepoint 0x4E00. This encoding is designed to helps us compact the source code size.)
++ static const short accumulative_offsets_from_0x4E00[] =
++ {
++ 0,1,2,4,1,1,1,1,2,1,3,3,2,2,1,5,3,5,7,5,6,1,2,1,7,2,6,3,1,8,1,1,4,1,1,18,2,11,2,6,2,1,2,1,5,1,2,1,3,1,2,1,2,3,3,1,1,2,3,1,1,1,12,7,9,1,4,5,1,
++ 1,2,1,10,1,1,9,2,2,4,5,6,9,3,1,1,1,1,9,3,18,5,2,2,2,2,1,6,3,7,1,1,1,1,2,2,4,2,1,23,2,10,4,3,5,2,4,10,2,4,13,1,6,1,9,3,1,1,6,6,7,6,3,1,2,11,3,
++ 2,2,3,2,15,2,2,5,4,3,6,4,1,2,5,2,12,16,6,13,9,13,2,1,1,7,16,4,7,1,19,1,5,1,2,2,7,7,8,2,6,5,4,9,18,7,4,5,9,13,11,8,15,2,1,1,1,2,1,2,2,1,2,2,8,
++ 2,9,3,3,1,1,4,4,1,1,1,4,9,1,4,3,5,5,2,7,5,3,4,8,2,1,13,2,3,3,1,14,1,1,4,5,1,3,6,1,5,2,1,1,3,3,3,3,1,1,2,7,6,6,7,1,4,7,6,1,1,1,1,1,12,3,3,9,5,
++ 2,6,1,5,6,1,2,3,18,2,4,14,4,1,3,6,1,1,6,3,5,5,3,2,2,2,2,12,3,1,4,2,3,2,3,11,1,7,4,1,2,1,3,17,1,9,1,24,1,1,4,2,2,4,1,2,7,1,1,1,3,1,2,2,4,15,1,
++ 1,2,1,1,2,1,5,2,5,20,2,5,9,1,10,8,7,6,1,1,1,1,1,1,6,2,1,2,8,1,1,1,1,5,1,1,3,1,1,1,1,3,1,1,12,4,1,3,1,1,1,1,1,10,3,1,7,5,13,1,2,3,4,6,1,1,30,
++ 2,9,9,1,15,38,11,3,1,8,24,7,1,9,8,10,2,1,9,31,2,13,6,2,9,4,49,5,2,15,2,1,10,2,1,1,1,2,2,6,15,30,35,3,14,18,8,1,16,10,28,12,19,45,38,1,3,2,3,
++ 13,2,1,7,3,6,5,3,4,3,1,5,7,8,1,5,3,18,5,3,6,1,21,4,24,9,24,40,3,14,3,21,3,2,1,2,4,2,3,1,15,15,6,5,1,1,3,1,5,6,1,9,7,3,3,2,1,4,3,8,21,5,16,4,
++ 5,2,10,11,11,3,6,3,2,9,3,6,13,1,2,1,1,1,1,11,12,6,6,1,4,2,6,5,2,1,1,3,3,6,13,3,1,1,5,1,2,3,3,14,2,1,2,2,2,5,1,9,5,1,1,6,12,3,12,3,4,13,2,14,
++ 2,8,1,17,5,1,16,4,2,2,21,8,9,6,23,20,12,25,19,9,38,8,3,21,40,25,33,13,4,3,1,4,1,2,4,1,2,5,26,2,1,1,2,1,3,6,2,1,1,1,1,1,1,2,3,1,1,1,9,2,3,1,1,
++ 1,3,6,3,2,1,1,6,6,1,8,2,2,2,1,4,1,2,3,2,7,3,2,4,1,2,1,2,2,1,1,1,1,1,3,1,2,5,4,10,9,4,9,1,1,1,1,1,1,5,3,2,1,6,4,9,6,1,10,2,31,17,8,3,7,5,40,1,
++ 7,7,1,6,5,2,10,7,8,4,15,39,25,6,28,47,18,10,7,1,3,1,1,2,1,1,1,3,3,3,1,1,1,3,4,2,1,4,1,3,6,10,7,8,6,2,2,1,3,3,2,5,8,7,9,12,2,15,1,1,4,1,2,1,1,
++ 1,3,2,1,3,3,5,6,2,3,2,10,1,4,2,8,1,1,1,11,6,1,21,4,16,3,1,3,1,4,2,3,6,5,1,3,1,1,3,3,4,6,1,1,10,4,2,7,10,4,7,4,2,9,4,3,1,1,1,4,1,8,3,4,1,3,1,
++ 6,1,4,2,1,4,7,2,1,8,1,4,5,1,1,2,2,4,6,2,7,1,10,1,1,3,4,11,10,8,21,4,6,1,3,5,2,1,2,28,5,5,2,3,13,1,2,3,1,4,2,1,5,20,3,8,11,1,3,3,3,1,8,10,9,2,
++ 10,9,2,3,1,1,2,4,1,8,3,6,1,7,8,6,11,1,4,29,8,4,3,1,2,7,13,1,4,1,6,2,6,12,12,2,20,3,2,3,6,4,8,9,2,7,34,5,1,18,6,1,1,4,4,5,7,9,1,2,2,4,3,4,1,7,
++ 2,2,2,6,2,3,25,5,3,6,1,4,6,7,4,2,1,4,2,13,6,4,4,3,1,5,3,4,4,3,2,1,1,4,1,2,1,1,3,1,11,1,6,3,1,7,3,6,2,8,8,6,9,3,4,11,3,2,10,12,2,5,11,1,6,4,5,
++ 3,1,8,5,4,6,6,3,5,1,1,3,2,1,2,2,6,17,12,1,10,1,6,12,1,6,6,19,9,6,16,1,13,4,4,15,7,17,6,11,9,15,12,6,7,2,1,2,2,15,9,3,21,4,6,49,18,7,3,2,3,1,
++ 6,8,2,2,6,2,9,1,3,6,4,4,1,2,16,2,5,2,1,6,2,3,5,3,1,2,5,1,2,1,9,3,1,8,6,4,8,11,3,1,1,1,1,3,1,13,8,4,1,3,2,2,1,4,1,11,1,5,2,1,5,2,5,8,6,1,1,7,
++ 4,3,8,3,2,7,2,1,5,1,5,2,4,7,6,2,8,5,1,11,4,5,3,6,18,1,2,13,3,3,1,21,1,1,4,1,4,1,1,1,8,1,2,2,7,1,2,4,2,2,9,2,1,1,1,4,3,6,3,12,5,1,1,1,5,6,3,2,
++ 4,8,2,2,4,2,7,1,8,9,5,2,3,2,1,3,2,13,7,14,6,5,1,1,2,1,4,2,23,2,1,1,6,3,1,4,1,15,3,1,7,3,9,14,1,3,1,4,1,1,5,8,1,3,8,3,8,15,11,4,14,4,4,2,5,5,
++ 1,7,1,6,14,7,7,8,5,15,4,8,6,5,6,2,1,13,1,20,15,11,9,2,5,6,2,11,2,6,2,5,1,5,8,4,13,19,25,4,1,1,11,1,34,2,5,9,14,6,2,2,6,1,1,14,1,3,14,13,1,6,
++ 12,21,14,14,6,32,17,8,32,9,28,1,2,4,11,8,3,1,14,2,5,15,1,1,1,1,3,6,4,1,3,4,11,3,1,1,11,30,1,5,1,4,1,5,8,1,1,3,2,4,3,17,35,2,6,12,17,3,1,6,2,
++ 1,1,12,2,7,3,3,2,1,16,2,8,3,6,5,4,7,3,3,8,1,9,8,5,1,2,1,3,2,8,1,2,9,12,1,1,2,3,8,3,24,12,4,3,7,5,8,3,3,3,3,3,3,1,23,10,3,1,2,2,6,3,1,16,1,16,
++ 22,3,10,4,11,6,9,7,7,3,6,2,2,2,4,10,2,1,1,2,8,7,1,6,4,1,3,3,3,5,10,12,12,2,3,12,8,15,1,1,16,6,6,1,5,9,11,4,11,4,2,6,12,1,17,5,13,1,4,9,5,1,11,
++ 2,1,8,1,5,7,28,8,3,5,10,2,17,3,38,22,1,2,18,12,10,4,38,18,1,4,44,19,4,1,8,4,1,12,1,4,31,12,1,14,7,75,7,5,10,6,6,13,3,2,11,11,3,2,5,28,15,6,18,
++ 18,5,6,4,3,16,1,7,18,7,36,3,5,3,1,7,1,9,1,10,7,2,4,2,6,2,9,7,4,3,32,12,3,7,10,2,23,16,3,1,12,3,31,4,11,1,3,8,9,5,1,30,15,6,12,3,2,2,11,19,9,
++ 14,2,6,2,3,19,13,17,5,3,3,25,3,14,1,1,1,36,1,3,2,19,3,13,36,9,13,31,6,4,16,34,2,5,4,2,3,3,5,1,1,1,4,3,1,17,3,2,3,5,3,1,3,2,3,5,6,3,12,11,1,3,
++ 1,2,26,7,12,7,2,14,3,3,7,7,11,25,25,28,16,4,36,1,2,1,6,2,1,9,3,27,17,4,3,4,13,4,1,3,2,2,1,10,4,2,4,6,3,8,2,1,18,1,1,24,2,2,4,33,2,3,63,7,1,6,
++ 40,7,3,4,4,2,4,15,18,1,16,1,1,11,2,41,14,1,3,18,13,3,2,4,16,2,17,7,15,24,7,18,13,44,2,2,3,6,1,1,7,5,1,7,1,4,3,3,5,10,8,2,3,1,8,1,1,27,4,2,1,
++ 12,1,2,1,10,6,1,6,7,5,2,3,7,11,5,11,3,6,6,2,3,15,4,9,1,1,2,1,2,11,2,8,12,8,5,4,2,3,1,5,2,2,1,14,1,12,11,4,1,11,17,17,4,3,2,5,5,7,3,1,5,9,9,8,
++ 2,5,6,6,13,13,2,1,2,6,1,2,2,49,4,9,1,2,10,16,7,8,4,3,2,23,4,58,3,29,1,14,19,19,11,11,2,7,5,1,3,4,6,2,18,5,12,12,17,17,3,3,2,4,1,6,2,3,4,3,1,
++ 1,1,1,5,1,1,9,1,3,1,3,6,1,8,1,1,2,6,4,14,3,1,4,11,4,1,3,32,1,2,4,13,4,1,2,4,2,1,3,1,11,1,4,2,1,4,4,6,3,5,1,6,5,7,6,3,23,3,5,3,5,3,3,13,3,9,10,
++ 1,12,10,2,3,18,13,7,160,52,4,2,2,3,2,14,5,4,12,4,6,4,1,20,4,11,6,2,12,27,1,4,1,2,2,7,4,5,2,28,3,7,25,8,3,19,3,6,10,2,2,1,10,2,5,4,1,3,4,1,5,
++ 3,2,6,9,3,6,2,16,3,3,16,4,5,5,3,2,1,2,16,15,8,2,6,21,2,4,1,22,5,8,1,1,21,11,2,1,11,11,19,13,12,4,2,3,2,3,6,1,8,11,1,4,2,9,5,2,1,11,2,9,1,1,2,
++ 14,31,9,3,4,21,14,4,8,1,7,2,2,2,5,1,4,20,3,3,4,10,1,11,9,8,2,1,4,5,14,12,14,2,17,9,6,31,4,14,1,20,13,26,5,2,7,3,6,13,2,4,2,19,6,2,2,18,9,3,5,
++ 12,12,14,4,6,2,3,6,9,5,22,4,5,25,6,4,8,5,2,6,27,2,35,2,16,3,7,8,8,6,6,5,9,17,2,20,6,19,2,13,3,1,1,1,4,17,12,2,14,7,1,4,18,12,38,33,2,10,1,1,
++ 2,13,14,17,11,50,6,33,20,26,74,16,23,45,50,13,38,33,6,6,7,4,4,2,1,3,2,5,8,7,8,9,3,11,21,9,13,1,3,10,6,7,1,2,2,18,5,5,1,9,9,2,68,9,19,13,2,5,
++ 1,4,4,7,4,13,3,9,10,21,17,3,26,2,1,5,2,4,5,4,1,7,4,7,3,4,2,1,6,1,1,20,4,1,9,2,2,1,3,3,2,3,2,1,1,1,20,2,3,1,6,2,3,6,2,4,8,1,3,2,10,3,5,3,4,4,
++ 3,4,16,1,6,1,10,2,4,2,1,1,2,10,11,2,2,3,1,24,31,4,10,10,2,5,12,16,164,15,4,16,7,9,15,19,17,1,2,1,1,5,1,1,1,1,1,3,1,4,3,1,3,1,3,1,2,1,1,3,3,7,
++ 2,8,1,2,2,2,1,3,4,3,7,8,12,92,2,10,3,1,3,14,5,25,16,42,4,7,7,4,2,21,5,27,26,27,21,25,30,31,2,1,5,13,3,22,5,6,6,11,9,12,1,5,9,7,5,5,22,60,3,5,
++ 13,1,1,8,1,1,3,3,2,1,9,3,3,18,4,1,2,3,7,6,3,1,2,3,9,1,3,1,3,2,1,3,1,1,1,2,1,11,3,1,6,9,1,3,2,3,1,2,1,5,1,1,4,3,4,1,2,2,4,4,1,7,2,1,2,2,3,5,13,
++ 18,3,4,14,9,9,4,16,3,7,5,8,2,6,48,28,3,1,1,4,2,14,8,2,9,2,1,15,2,4,3,2,10,16,12,8,7,1,1,3,1,1,1,2,7,4,1,6,4,38,39,16,23,7,15,15,3,2,12,7,21,
++ 37,27,6,5,4,8,2,10,8,8,6,5,1,2,1,3,24,1,16,17,9,23,10,17,6,1,51,55,44,13,294,9,3,6,2,4,2,2,15,1,1,1,13,21,17,68,14,8,9,4,1,4,9,3,11,7,1,1,1,
++ 5,6,3,2,1,1,1,2,3,8,1,2,2,4,1,5,5,2,1,4,3,7,13,4,1,4,1,3,1,1,1,5,5,10,1,6,1,5,2,1,5,2,4,1,4,5,7,3,18,2,9,11,32,4,3,3,2,4,7,11,16,9,11,8,13,38,
++ 32,8,4,2,1,1,2,1,2,4,4,1,1,1,4,1,21,3,11,1,16,1,1,6,1,3,2,4,9,8,57,7,44,1,3,3,13,3,10,1,1,7,5,2,7,21,47,63,3,15,4,7,1,16,1,1,2,8,2,3,42,15,4,
++ 1,29,7,22,10,3,78,16,12,20,18,4,67,11,5,1,3,15,6,21,31,32,27,18,13,71,35,5,142,4,10,1,2,50,19,33,16,35,37,16,19,27,7,1,133,19,1,4,8,7,20,1,4,
++ 4,1,10,3,1,6,1,2,51,5,40,15,24,43,22928,11,1,13,154,70,3,1,1,7,4,10,1,2,1,1,2,1,2,1,2,2,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,
++ 3,2,1,1,1,1,2,1,1,
++ };
++ static ImWchar base_ranges[] = // not zero-terminated
++ {
++ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
++ 0x3000, 0x30FF, // CJK Symbols and Punctuations, Hiragana, Katakana
++ 0x31F0, 0x31FF, // Katakana Phonetic Extensions
++ 0xFF00, 0xFFEF, // Half-width characters
++ 0xFFFD, 0xFFFD // Invalid
++ };
++ static ImWchar full_ranges[IM_ARRAYSIZE(base_ranges) + IM_ARRAYSIZE(accumulative_offsets_from_0x4E00)*2 + 1] = { 0 };
++ if (!full_ranges[0])
++ {
++ memcpy(full_ranges, base_ranges, sizeof(base_ranges));
++ UnpackAccumulativeOffsetsIntoRanges(0x4E00, accumulative_offsets_from_0x4E00, IM_ARRAYSIZE(accumulative_offsets_from_0x4E00), full_ranges + IM_ARRAYSIZE(base_ranges));
++ }
++ return &full_ranges[0];
++ }
++
++ const ImWchar* ImFontAtlas::GetGlyphRangesCyrillic()
++ {
++ static const ImWchar ranges[] =
++ {
++ 0x0020, 0x00FF, // Basic Latin + Latin Supplement
++ 0x0400, 0x052F, // Cyrillic + Cyrillic Supplement
++ 0x2DE0, 0x2DFF, // Cyrillic Extended-A
++ 0xA640, 0xA69F, // Cyrillic Extended-B
++ 0,
++ };
++ return &ranges[0];
++ }
++
++ const ImWchar* ImFontAtlas::GetGlyphRangesThai()
++ {
++ static const ImWchar ranges[] =
++ {
++ 0x0020, 0x00FF, // Basic Latin
++ 0x2010, 0x205E, // Punctuations
++ 0x0E00, 0x0E7F, // Thai
++ 0,
++ };
++ return &ranges[0];
++ }
++
++ const ImWchar* ImFontAtlas::GetGlyphRangesVietnamese()
++ {
++ static const ImWchar ranges[] =
++ {
++ 0x0020, 0x00FF, // Basic Latin
++ 0x0102, 0x0103,
++ 0x0110, 0x0111,
++ 0x0128, 0x0129,
++ 0x0168, 0x0169,
++ 0x01A0, 0x01A1,
++ 0x01AF, 0x01B0,
++ 0x1EA0, 0x1EF9,
++ 0,
++ };
++ return &ranges[0];
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImFontGlyphRangesBuilder
++ //-----------------------------------------------------------------------------
++
++ void ImFontGlyphRangesBuilder::AddText(const char* text, const char* text_end)
++ {
++ while (text_end ? (text < text_end) : *text)
++ {
++ unsigned int c = 0;
++ int c_len = ImTextCharFromUtf8(&c, text, text_end);
++ text += c_len;
++ if (c_len == 0)
++ break;
++ AddChar((ImWchar)c);
++ }
++ }
++
++ void ImFontGlyphRangesBuilder::AddRanges(const ImWchar* ranges)
++ {
++ for (; ranges[0]; ranges += 2)
++ for (unsigned int c = ranges[0]; c <= ranges[1] && c <= IM_UNICODE_CODEPOINT_MAX; c++) //-V560
++ AddChar((ImWchar)c);
++ }
++
++ void ImFontGlyphRangesBuilder::BuildRanges(ImVector<ImWchar>* out_ranges)
++ {
++ const int max_codepoint = IM_UNICODE_CODEPOINT_MAX;
++ for (int n = 0; n <= max_codepoint; n++)
++ if (GetBit(n))
++ {
++ out_ranges->push_back((ImWchar)n);
++ while (n < max_codepoint && GetBit(n + 1))
++ n++;
++ out_ranges->push_back((ImWchar)n);
++ }
++ out_ranges->push_back(0);
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImFont
++ //-----------------------------------------------------------------------------
++
++ ImFont::ImFont()
++ {
++ FontSize = 0.0f;
++ FallbackAdvanceX = 0.0f;
++ FallbackChar = (ImWchar)-1;
++ EllipsisChar = (ImWchar)-1;
++ EllipsisWidth = EllipsisCharStep = 0.0f;
++ EllipsisCharCount = 0;
++ FallbackGlyph = NULL;
++ ContainerAtlas = NULL;
++ ConfigData = NULL;
++ ConfigDataCount = 0;
++ DirtyLookupTables = false;
++ Scale = 1.0f;
++ Ascent = Descent = 0.0f;
++ MetricsTotalSurface = 0;
++ memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
++ }
++
++ ImFont::~ImFont()
++ {
++ ClearOutputData();
++ }
++
++ void ImFont::ClearOutputData()
++ {
++ FontSize = 0.0f;
++ FallbackAdvanceX = 0.0f;
++ Glyphs.clear();
++ IndexAdvanceX.clear();
++ IndexLookup.clear();
++ FallbackGlyph = NULL;
++ ContainerAtlas = NULL;
++ DirtyLookupTables = true;
++ Ascent = Descent = 0.0f;
++ MetricsTotalSurface = 0;
++ }
++
++ static ImWchar FindFirstExistingGlyph(ImFont* font, const ImWchar* candidate_chars, int candidate_chars_count)
++ {
++ for (int n = 0; n < candidate_chars_count; n++)
++ if (font->FindGlyphNoFallback(candidate_chars[n]) != NULL)
++ return candidate_chars[n];
++ return (ImWchar)-1;
++ }
++
++ void ImFont::BuildLookupTable()
++ {
++ int max_codepoint = 0;
++ for (int i = 0; i != Glyphs.Size; i++)
++ max_codepoint = ImMax(max_codepoint, (int)Glyphs[i].Codepoint);
++
++ // Build lookup table
++ IM_ASSERT(Glyphs.Size > 0 && "Font has not loaded glyph!");
++ IM_ASSERT(Glyphs.Size < 0xFFFF); // -1 is reserved
++ IndexAdvanceX.clear();
++ IndexLookup.clear();
++ DirtyLookupTables = false;
++ memset(Used4kPagesMap, 0, sizeof(Used4kPagesMap));
++ GrowIndex(max_codepoint + 1);
++ for (int i = 0; i < Glyphs.Size; i++)
++ {
++ int codepoint = (int)Glyphs[i].Codepoint;
++ IndexAdvanceX[codepoint] = Glyphs[i].AdvanceX;
++ IndexLookup[codepoint] = (ImWchar)i;
++
++ // Mark 4K page as used
++ const int page_n = codepoint / 4096;
++ Used4kPagesMap[page_n >> 3] |= 1 << (page_n & 7);
++ }
++
++ // Create a glyph to handle TAB
++ // FIXME: Needs proper TAB handling but it needs to be contextualized (or we could arbitrary say that each string starts at "column 0" ?)
++ if (FindGlyph((ImWchar)' '))
++ {
++ if (Glyphs.back().Codepoint != '\t') // So we can call this function multiple times (FIXME: Flaky)
++ Glyphs.resize(Glyphs.Size + 1);
++ ImFontGlyph& tab_glyph = Glyphs.back();
++ tab_glyph = *FindGlyph((ImWchar)' ');
++ tab_glyph.Codepoint = '\t';
++ tab_glyph.AdvanceX *= IM_TABSIZE;
++ IndexAdvanceX[(int)tab_glyph.Codepoint] = (float)tab_glyph.AdvanceX;
++ IndexLookup[(int)tab_glyph.Codepoint] = (ImWchar)(Glyphs.Size - 1);
++ }
++
++ // Mark special glyphs as not visible (note that AddGlyph already mark as non-visible glyphs with zero-size polygons)
++ SetGlyphVisible((ImWchar)' ', false);
++ SetGlyphVisible((ImWchar)'\t', false);
++
++ // Setup Fallback character
++ const ImWchar fallback_chars[] = { (ImWchar)IM_UNICODE_CODEPOINT_INVALID, (ImWchar)'?', (ImWchar)' ' };
++ FallbackGlyph = FindGlyphNoFallback(FallbackChar);
++ if (FallbackGlyph == NULL)
++ {
++ FallbackChar = FindFirstExistingGlyph(this, fallback_chars, IM_ARRAYSIZE(fallback_chars));
++ FallbackGlyph = FindGlyphNoFallback(FallbackChar);
++ if (FallbackGlyph == NULL)
++ {
++ FallbackGlyph = &Glyphs.back();
++ FallbackChar = (ImWchar)FallbackGlyph->Codepoint;
++ }
++ }
++ FallbackAdvanceX = FallbackGlyph->AdvanceX;
++ for (int i = 0; i < max_codepoint + 1; i++)
++ if (IndexAdvanceX[i] < 0.0f)
++ IndexAdvanceX[i] = FallbackAdvanceX;
++
++ // Setup Ellipsis character. It is required for rendering elided text. We prefer using U+2026 (horizontal ellipsis).
++ // However some old fonts may contain ellipsis at U+0085. Here we auto-detect most suitable ellipsis character.
++ // FIXME: Note that 0x2026 is rarely included in our font ranges. Because of this we are more likely to use three individual dots.
++ const ImWchar ellipsis_chars[] = { (ImWchar)0x2026, (ImWchar)0x0085 };
++ const ImWchar dots_chars[] = { (ImWchar)'.', (ImWchar)0xFF0E };
++ if (EllipsisChar == (ImWchar)-1)
++ EllipsisChar = FindFirstExistingGlyph(this, ellipsis_chars, IM_ARRAYSIZE(ellipsis_chars));
++ const ImWchar dot_char = FindFirstExistingGlyph(this, dots_chars, IM_ARRAYSIZE(dots_chars));
++ if (EllipsisChar != (ImWchar)-1)
++ {
++ EllipsisCharCount = 1;
++ EllipsisWidth = EllipsisCharStep = FindGlyph(EllipsisChar)->X1;
++ }
++ else if (dot_char != (ImWchar)-1)
++ {
++ const ImFontGlyph* glyph = FindGlyph(dot_char);
++ EllipsisChar = dot_char;
++ EllipsisCharCount = 3;
++ EllipsisCharStep = (glyph->X1 - glyph->X0) + 1.0f;
++ EllipsisWidth = EllipsisCharStep * 3.0f - 1.0f;
++ }
++ }
++
++ // API is designed this way to avoid exposing the 4K page size
++ // e.g. use with IsGlyphRangeUnused(0, 255)
++ bool ImFont::IsGlyphRangeUnused(unsigned int c_begin, unsigned int c_last)
++ {
++ unsigned int page_begin = (c_begin / 4096);
++ unsigned int page_last = (c_last / 4096);
++ for (unsigned int page_n = page_begin; page_n <= page_last; page_n++)
++ if ((page_n >> 3) < sizeof(Used4kPagesMap))
++ if (Used4kPagesMap[page_n >> 3] & (1 << (page_n & 7)))
++ return false;
++ return true;
++ }
++
++ void ImFont::SetGlyphVisible(ImWchar c, bool visible)
++ {
++ if (ImFontGlyph* glyph = (ImFontGlyph*)(void*)FindGlyph((ImWchar)c))
++ glyph->Visible = visible ? 1 : 0;
++ }
++
++ void ImFont::GrowIndex(int new_size)
++ {
++ IM_ASSERT(IndexAdvanceX.Size == IndexLookup.Size);
++ if (new_size <= IndexLookup.Size)
++ return;
++ IndexAdvanceX.resize(new_size, -1.0f);
++ IndexLookup.resize(new_size, (ImWchar)-1);
++ }
++
++ // x0/y0/x1/y1 are offset from the character upper-left layout position, in pixels. Therefore x0/y0 are often fairly close to zero.
++ // Not to be mistaken with texture coordinates, which are held by u0/v0/u1/v1 in normalized format (0.0..1.0 on each texture axis).
++ // 'cfg' is not necessarily == 'this->ConfigData' because multiple source fonts+configs can be used to build one target font.
++ void ImFont::AddGlyph(const ImFontConfig* cfg, ImWchar codepoint, float x0, float y0, float x1, float y1, float u0, float v0, float u1, float v1, float advance_x)
++ {
++ if (cfg != NULL)
++ {
++ // Clamp & recenter if needed
++ const float advance_x_original = advance_x;
++ advance_x = ImClamp(advance_x, cfg->GlyphMinAdvanceX, cfg->GlyphMaxAdvanceX);
++ if (advance_x != advance_x_original)
++ {
++ float char_off_x = cfg->PixelSnapH ? ImTrunc((advance_x - advance_x_original) * 0.5f) : (advance_x - advance_x_original) * 0.5f;
++ x0 += char_off_x;
++ x1 += char_off_x;
++ }
++
++ // Snap to pixel
++ if (cfg->PixelSnapH)
++ advance_x = IM_ROUND(advance_x);
++
++ // Bake spacing
++ advance_x += cfg->GlyphExtraSpacing.x;
++ }
++
++ Glyphs.resize(Glyphs.Size + 1);
++ ImFontGlyph& glyph = Glyphs.back();
++ glyph.Codepoint = (unsigned int)codepoint;
++ glyph.Visible = (x0 != x1) && (y0 != y1);
++ glyph.Colored = false;
++ glyph.X0 = x0;
++ glyph.Y0 = y0;
++ glyph.X1 = x1;
++ glyph.Y1 = y1;
++ glyph.U0 = u0;
++ glyph.V0 = v0;
++ glyph.U1 = u1;
++ glyph.V1 = v1;
++ glyph.AdvanceX = advance_x;
++
++ // Compute rough surface usage metrics (+1 to account for average padding, +0.99 to round)
++ // We use (U1-U0)*TexWidth instead of X1-X0 to account for oversampling.
++ float pad = ContainerAtlas->TexGlyphPadding + 0.99f;
++ DirtyLookupTables = true;
++ MetricsTotalSurface += (int)((glyph.U1 - glyph.U0) * ContainerAtlas->TexWidth + pad) * (int)((glyph.V1 - glyph.V0) * ContainerAtlas->TexHeight + pad);
++ }
++
++ void ImFont::AddRemapChar(ImWchar dst, ImWchar src, bool overwrite_dst)
++ {
++ IM_ASSERT(IndexLookup.Size > 0); // Currently this can only be called AFTER the font has been built, aka after calling ImFontAtlas::GetTexDataAs*() function.
++ unsigned int index_size = (unsigned int)IndexLookup.Size;
++
++ if (dst < index_size && IndexLookup.Data[dst] == (ImWchar)-1 && !overwrite_dst) // 'dst' already exists
++ return;
++ if (src >= index_size && dst >= index_size) // both 'dst' and 'src' don't exist -> no-op
++ return;
++
++ GrowIndex(dst + 1);
++ IndexLookup[dst] = (src < index_size) ? IndexLookup.Data[src] : (ImWchar)-1;
++ IndexAdvanceX[dst] = (src < index_size) ? IndexAdvanceX.Data[src] : 1.0f;
++ }
++
++ const ImFontGlyph* ImFont::FindGlyph(ImWchar c) const
++ {
++ if (c >= (size_t)IndexLookup.Size)
++ return FallbackGlyph;
++ const ImWchar i = IndexLookup.Data[c];
++ if (i == (ImWchar)-1)
++ return FallbackGlyph;
++ return &Glyphs.Data[i];
++ }
++
++ const ImFontGlyph* ImFont::FindGlyphNoFallback(ImWchar c) const
++ {
++ if (c >= (size_t)IndexLookup.Size)
++ return NULL;
++ const ImWchar i = IndexLookup.Data[c];
++ if (i == (ImWchar)-1)
++ return NULL;
++ return &Glyphs.Data[i];
++ }
++
++ // Wrapping skips upcoming blanks
++ static inline const char* CalcWordWrapNextLineStartA(const char* text, const char* text_end)
++ {
++ while (text < text_end && ImCharIsBlankA(*text))
++ text++;
++ if (*text == '\n')
++ text++;
++ return text;
++ }
++
++ // Simple word-wrapping for English, not full-featured. Please submit failing cases!
++ // This will return the next location to wrap from. If no wrapping if necessary, this will fast-forward to e.g. text_end.
++ // FIXME: Much possible improvements (don't cut things like "word !", "word!!!" but cut within "word,,,,", more sensible support for punctuations, support for Unicode punctuations, etc.)
++ const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const
++ {
++ // For references, possible wrap point marked with ^
++ // "aaa bbb, ccc,ddd. eee fff. ggg!"
++ // ^ ^ ^ ^ ^__ ^ ^
++
++ // List of hardcoded separators: .,;!?'"
++
++ // Skip extra blanks after a line returns (that includes not counting them in width computation)
++ // e.g. "Hello world" --> "Hello" "World"
++
++ // Cut words that cannot possibly fit within one line.
++ // e.g.: "The tropical fish" with ~5 characters worth of width --> "The tr" "opical" "fish"
++ float line_width = 0.0f;
++ float word_width = 0.0f;
++ float blank_width = 0.0f;
++ wrap_width /= scale; // We work with unscaled widths to avoid scaling every characters
++
++ const char* word_end = text;
++ const char* prev_word_end = NULL;
++ bool inside_word = true;
++
++ const char* s = text;
++ IM_ASSERT(text_end != NULL);
++ while (s < text_end)
++ {
++ unsigned int c = (unsigned int)*s;
++ const char* next_s;
++ if (c < 0x80)
++ next_s = s + 1;
++ else
++ next_s = s + ImTextCharFromUtf8(&c, s, text_end);
++
++ if (c < 32)
++ {
++ if (c == '\n')
++ {
++ line_width = word_width = blank_width = 0.0f;
++ inside_word = true;
++ s = next_s;
++ continue;
++ }
++ if (c == '\r')
++ {
++ s = next_s;
++ continue;
++ }
++ }
++
++ const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX);
++ if (ImCharIsBlankW(c))
++ {
++ if (inside_word)
++ {
++ line_width += blank_width;
++ blank_width = 0.0f;
++ word_end = s;
++ }
++ blank_width += char_width;
++ inside_word = false;
++ }
++ else
++ {
++ word_width += char_width;
++ if (inside_word)
++ {
++ word_end = next_s;
++ }
++ else
++ {
++ prev_word_end = word_end;
++ line_width += word_width + blank_width;
++ word_width = blank_width = 0.0f;
++ }
++
++ // Allow wrapping after punctuation.
++ inside_word = (c != '.' && c != ',' && c != ';' && c != '!' && c != '?' && c != '\"');
++ }
++
++ // We ignore blank width at the end of the line (they can be skipped)
++ if (line_width + word_width > wrap_width)
++ {
++ // Words that cannot possibly fit within an entire line will be cut anywhere.
++ if (word_width < wrap_width)
++ s = prev_word_end ? prev_word_end : word_end;
++ break;
++ }
++
++ s = next_s;
++ }
++
++ // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
++ // +1 may not be a character start point in UTF-8 but it's ok because caller loops use (text >= word_wrap_eol).
++ if (s == text && text < text_end)
++ return s + 1;
++ return s;
++ }
++
++ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end, const char** remaining) const
++ {
++ if (!text_end)
++ text_end = text_begin + strlen(text_begin); // FIXME-OPT: Need to avoid this.
++
++ const float line_height = size;
++ const float scale = size / FontSize;
++
++ ImVec2 text_size = ImVec2(0, 0);
++ float line_width = 0.0f;
++
++ const bool word_wrap_enabled = (wrap_width > 0.0f);
++ const char* word_wrap_eol = NULL;
++
++ const char* s = text_begin;
++ while (s < text_end)
++ {
++ if (word_wrap_enabled)
++ {
++ // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
++ if (!word_wrap_eol)
++ word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - line_width);
++
++ if (s >= word_wrap_eol)
++ {
++ if (text_size.x < line_width)
++ text_size.x = line_width;
++ text_size.y += line_height;
++ line_width = 0.0f;
++ word_wrap_eol = NULL;
++ s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks
++ continue;
++ }
++ }
++
++ // Decode and advance source
++ const char* prev_s = s;
++ unsigned int c = (unsigned int)*s;
++ if (c < 0x80)
++ s += 1;
++ else
++ s += ImTextCharFromUtf8(&c, s, text_end);
++
++ if (c < 32)
++ {
++ if (c == '\n')
++ {
++ text_size.x = ImMax(text_size.x, line_width);
++ text_size.y += line_height;
++ line_width = 0.0f;
++ continue;
++ }
++ if (c == '\r')
++ continue;
++ }
++
++ const float char_width = ((int)c < IndexAdvanceX.Size ? IndexAdvanceX.Data[c] : FallbackAdvanceX) * scale;
++ if (line_width + char_width >= max_width)
++ {
++ s = prev_s;
++ break;
++ }
++
++ line_width += char_width;
++ }
++
++ if (text_size.x < line_width)
++ text_size.x = line_width;
++
++ if (line_width > 0 || text_size.y == 0.0f)
++ text_size.y += line_height;
++
++ if (remaining)
++ *remaining = s;
++
++ return text_size;
++ }
++
++ // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
++ void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const
++ {
++ const ImFontGlyph* glyph = FindGlyph(c);
++ if (!glyph || !glyph->Visible)
++ return;
++ if (glyph->Colored)
++ col |= ~IM_COL32_A_MASK;
++ float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
++ float x = IM_TRUNC(pos.x);
++ float y = IM_TRUNC(pos.y);
++ draw_list->PrimReserve(6, 4);
++ draw_list->PrimRectUV(ImVec2(x + glyph->X0 * scale, y + glyph->Y0 * scale), ImVec2(x + glyph->X1 * scale, y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
++ }
++
++ // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
++ void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
++ {
++ if (!text_end)
++ text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
++
++ // Align to be pixel perfect
++ float x = IM_TRUNC(pos.x);
++ float y = IM_TRUNC(pos.y);
++ if (y > clip_rect.w)
++ return;
++
++ const float start_x = x;
++ const float scale = size / FontSize;
++ const float line_height = FontSize * scale;
++ const bool word_wrap_enabled = (wrap_width > 0.0f);
++
++ // Fast-forward to first visible line
++ const char* s = text_begin;
++ if (y + line_height < clip_rect.y)
++ while (y + line_height < clip_rect.y && s < text_end)
++ {
++ const char* line_end = (const char*)memchr(s, '\n', text_end - s);
++ if (word_wrap_enabled)
++ {
++ // FIXME-OPT: This is not optimal as do first do a search for \n before calling CalcWordWrapPositionA().
++ // If the specs for CalcWordWrapPositionA() were reworked to optionally return on \n we could combine both.
++ // However it is still better than nothing performing the fast-forward!
++ s = CalcWordWrapPositionA(scale, s, line_end ? line_end : text_end, wrap_width);
++ s = CalcWordWrapNextLineStartA(s, text_end);
++ }
++ else
++ {
++ s = line_end ? line_end + 1 : text_end;
++ }
++ y += line_height;
++ }
++
++ // For large text, scan for the last visible line in order to avoid over-reserving in the call to PrimReserve()
++ // Note that very large horizontal line will still be affected by the issue (e.g. a one megabyte string buffer without a newline will likely crash atm)
++ if (text_end - s > 10000 && !word_wrap_enabled)
++ {
++ const char* s_end = s;
++ float y_end = y;
++ while (y_end < clip_rect.w && s_end < text_end)
++ {
++ s_end = (const char*)memchr(s_end, '\n', text_end - s_end);
++ s_end = s_end ? s_end + 1 : text_end;
++ y_end += line_height;
++ }
++ text_end = s_end;
++ }
++ if (s == text_end)
++ return;
++
++ // Reserve vertices for remaining worse case (over-reserving is useful and easily amortized)
++ const int vtx_count_max = (int)(text_end - s) * 4;
++ const int idx_count_max = (int)(text_end - s) * 6;
++ const int idx_expected_size = draw_list->IdxBuffer.Size + idx_count_max;
++ draw_list->PrimReserve(idx_count_max, vtx_count_max);
++ ImDrawVert* vtx_write = draw_list->_VtxWritePtr;
++ ImDrawIdx* idx_write = draw_list->_IdxWritePtr;
++ unsigned int vtx_index = draw_list->_VtxCurrentIdx;
++
++ const ImU32 col_untinted = col | ~IM_COL32_A_MASK;
++ const char* word_wrap_eol = NULL;
++
++ while (s < text_end)
++ {
++ if (word_wrap_enabled)
++ {
++ // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
++ if (!word_wrap_eol)
++ word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - start_x));
++
++ if (s >= word_wrap_eol)
++ {
++ x = start_x;
++ y += line_height;
++ if (y > clip_rect.w)
++ break; // break out of main loop
++ word_wrap_eol = NULL;
++ s = CalcWordWrapNextLineStartA(s, text_end); // Wrapping skips upcoming blanks
++ continue;
++ }
++ }
++
++ // Decode and advance source
++ unsigned int c = (unsigned int)*s;
++ if (c < 0x80)
++ s += 1;
++ else
++ s += ImTextCharFromUtf8(&c, s, text_end);
++
++ if (c < 32)
++ {
++ if (c == '\n')
++ {
++ x = start_x;
++ y += line_height;
++ if (y > clip_rect.w)
++ break; // break out of main loop
++ continue;
++ }
++ if (c == '\r')
++ continue;
++ }
++
++ const ImFontGlyph* glyph = FindGlyph((ImWchar)c);
++ if (glyph == NULL)
++ continue;
++
++ float char_width = glyph->AdvanceX * scale;
++ if (glyph->Visible)
++ {
++ // We don't do a second finer clipping test on the Y axis as we've already skipped anything before clip_rect.y and exit once we pass clip_rect.w
++ float x1 = x + glyph->X0 * scale;
++ float x2 = x + glyph->X1 * scale;
++ float y1 = y + glyph->Y0 * scale;
++ float y2 = y + glyph->Y1 * scale;
++ if (x1 <= clip_rect.z && x2 >= clip_rect.x)
++ {
++ // Render a character
++ float u1 = glyph->U0;
++ float v1 = glyph->V0;
++ float u2 = glyph->U1;
++ float v2 = glyph->V1;
++
++ // CPU side clipping used to fit text in their frame when the frame is too small. Only does clipping for axis aligned quads.
++ if (cpu_fine_clip)
++ {
++ if (x1 < clip_rect.x)
++ {
++ u1 = u1 + (1.0f - (x2 - clip_rect.x) / (x2 - x1)) * (u2 - u1);
++ x1 = clip_rect.x;
++ }
++ if (y1 < clip_rect.y)
++ {
++ v1 = v1 + (1.0f - (y2 - clip_rect.y) / (y2 - y1)) * (v2 - v1);
++ y1 = clip_rect.y;
++ }
++ if (x2 > clip_rect.z)
++ {
++ u2 = u1 + ((clip_rect.z - x1) / (x2 - x1)) * (u2 - u1);
++ x2 = clip_rect.z;
++ }
++ if (y2 > clip_rect.w)
++ {
++ v2 = v1 + ((clip_rect.w - y1) / (y2 - y1)) * (v2 - v1);
++ y2 = clip_rect.w;
++ }
++ if (y1 >= y2)
++ {
++ x += char_width;
++ continue;
++ }
++ }
++
++ // Support for untinted glyphs
++ ImU32 glyph_col = glyph->Colored ? col_untinted : col;
++
++ // We are NOT calling PrimRectUV() here because non-inlined causes too much overhead in a debug builds. Inlined here:
++ {
++ vtx_write[0].pos.x = x1; vtx_write[0].pos.y = y1; vtx_write[0].col = glyph_col; vtx_write[0].uv.x = u1; vtx_write[0].uv.y = v1;
++ vtx_write[1].pos.x = x2; vtx_write[1].pos.y = y1; vtx_write[1].col = glyph_col; vtx_write[1].uv.x = u2; vtx_write[1].uv.y = v1;
++ vtx_write[2].pos.x = x2; vtx_write[2].pos.y = y2; vtx_write[2].col = glyph_col; vtx_write[2].uv.x = u2; vtx_write[2].uv.y = v2;
++ vtx_write[3].pos.x = x1; vtx_write[3].pos.y = y2; vtx_write[3].col = glyph_col; vtx_write[3].uv.x = u1; vtx_write[3].uv.y = v2;
++ idx_write[0] = (ImDrawIdx)(vtx_index); idx_write[1] = (ImDrawIdx)(vtx_index + 1); idx_write[2] = (ImDrawIdx)(vtx_index + 2);
++ idx_write[3] = (ImDrawIdx)(vtx_index); idx_write[4] = (ImDrawIdx)(vtx_index + 2); idx_write[5] = (ImDrawIdx)(vtx_index + 3);
++ vtx_write += 4;
++ vtx_index += 4;
++ idx_write += 6;
++ }
++ }
++ }
++ x += char_width;
++ }
++
++ // Give back unused vertices (clipped ones, blanks) ~ this is essentially a PrimUnreserve() action.
++ draw_list->VtxBuffer.Size = (int)(vtx_write - draw_list->VtxBuffer.Data); // Same as calling shrink()
++ draw_list->IdxBuffer.Size = (int)(idx_write - draw_list->IdxBuffer.Data);
++ draw_list->CmdBuffer[draw_list->CmdBuffer.Size - 1].ElemCount -= (idx_expected_size - draw_list->IdxBuffer.Size);
++ draw_list->_VtxWritePtr = vtx_write;
++ draw_list->_IdxWritePtr = idx_write;
++ draw_list->_VtxCurrentIdx = vtx_index;
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] ImGui Internal Render Helpers
++ //-----------------------------------------------------------------------------
++ // Vaguely redesigned to stop accessing ImGui global state:
++ // - RenderArrow()
++ // - RenderBullet()
++ // - RenderCheckMark()
++ // - RenderArrowPointingAt()
++ // - RenderRectFilledRangeH()
++ // - RenderRectFilledWithHole()
++ //-----------------------------------------------------------------------------
++ // Function in need of a redesign (legacy mess)
++ // - RenderColorRectWithAlphaCheckerboard()
++ //-----------------------------------------------------------------------------
++
++ // Render an arrow aimed to be aligned with text (p_min is a position in the same space text would be positioned). To e.g. denote expanded/collapsed state
++ void ImGui::RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale)
++ {
++ const float h = draw_list->_Data->FontSize * 1.00f;
++ float r = h * 0.40f * scale;
++ ImVec2 center = pos + ImVec2(h * 0.50f, h * 0.50f * scale);
++
++ ImVec2 a, b, c;
++ switch (dir)
++ {
++ case ImGuiDir_Up:
++ case ImGuiDir_Down:
++ if (dir == ImGuiDir_Up) r = -r;
++ a = ImVec2(+0.000f, +0.750f) * r;
++ b = ImVec2(-0.866f, -0.750f) * r;
++ c = ImVec2(+0.866f, -0.750f) * r;
++ break;
++ case ImGuiDir_Left:
++ case ImGuiDir_Right:
++ if (dir == ImGuiDir_Left) r = -r;
++ a = ImVec2(+0.750f, +0.000f) * r;
++ b = ImVec2(-0.750f, +0.866f) * r;
++ c = ImVec2(-0.750f, -0.866f) * r;
++ break;
++ case ImGuiDir_None:
++ case ImGuiDir_COUNT:
++ IM_ASSERT(0);
++ break;
++ }
++ draw_list->AddTriangleFilled(center + a, center + b, center + c, col);
++ }
++
++ void ImGui::RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col)
++ {
++ // FIXME-OPT: This should be baked in font.
++ draw_list->AddCircleFilled(pos, draw_list->_Data->FontSize * 0.20f, col, 8);
++ }
++
++ void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz)
++ {
++ float thickness = ImMax(sz / 5.0f, 1.0f);
++ sz -= thickness * 0.5f;
++ pos += ImVec2(thickness * 0.25f, thickness * 0.25f);
++
++ float third = sz / 3.0f;
++ float bx = pos.x + third;
++ float by = pos.y + sz - third * 0.5f;
++ draw_list->PathLineTo(ImVec2(bx - third, by - third));
++ draw_list->PathLineTo(ImVec2(bx, by));
++ draw_list->PathLineTo(ImVec2(bx + third * 2.0f, by - third * 2.0f));
++ draw_list->PathStroke(col, 0, thickness);
++ }
++
++ // Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
++ void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
++ {
++ switch (direction)
++ {
++ case ImGuiDir_Left: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), pos, col); return;
++ case ImGuiDir_Right: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), pos, col); return;
++ case ImGuiDir_Up: draw_list->AddTriangleFilled(ImVec2(pos.x + half_sz.x, pos.y + half_sz.y), ImVec2(pos.x - half_sz.x, pos.y + half_sz.y), pos, col); return;
++ case ImGuiDir_Down: draw_list->AddTriangleFilled(ImVec2(pos.x - half_sz.x, pos.y - half_sz.y), ImVec2(pos.x + half_sz.x, pos.y - half_sz.y), pos, col); return;
++ case ImGuiDir_None: case ImGuiDir_COUNT: break; // Fix warnings
++ }
++ }
++
++ static inline float ImAcos01(float x)
++ {
++ if (x <= 0.0f) return IM_PI * 0.5f;
++ if (x >= 1.0f) return 0.0f;
++ return ImAcos(x);
++ //return (-0.69813170079773212f * x * x - 0.87266462599716477f) * x + 1.5707963267948966f; // Cheap approximation, may be enough for what we do.
++ }
++
++ // FIXME: Cleanup and move code to ImDrawList.
++ void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding)
++ {
++ if (x_end_norm == x_start_norm)
++ return;
++ if (x_start_norm > x_end_norm)
++ ImSwap(x_start_norm, x_end_norm);
++
++ ImVec2 p0 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_start_norm), rect.Min.y);
++ ImVec2 p1 = ImVec2(ImLerp(rect.Min.x, rect.Max.x, x_end_norm), rect.Max.y);
++ if (rounding == 0.0f)
++ {
++ draw_list->AddRectFilled(p0, p1, col, 0.0f);
++ return;
++ }
++
++ rounding = ImClamp(ImMin((rect.Max.x - rect.Min.x) * 0.5f, (rect.Max.y - rect.Min.y) * 0.5f) - 1.0f, 0.0f, rounding);
++ const float inv_rounding = 1.0f / rounding;
++ const float arc0_b = ImAcos01(1.0f - (p0.x - rect.Min.x) * inv_rounding);
++ const float arc0_e = ImAcos01(1.0f - (p1.x - rect.Min.x) * inv_rounding);
++ const float half_pi = IM_PI * 0.5f; // We will == compare to this because we know this is the exact value ImAcos01 can return.
++ const float x0 = ImMax(p0.x, rect.Min.x + rounding);
++ if (arc0_b == arc0_e)
++ {
++ draw_list->PathLineTo(ImVec2(x0, p1.y));
++ draw_list->PathLineTo(ImVec2(x0, p0.y));
++ }
++ else if (arc0_b == 0.0f && arc0_e == half_pi)
++ {
++ draw_list->PathArcToFast(ImVec2(x0, p1.y - rounding), rounding, 3, 6); // BL
++ draw_list->PathArcToFast(ImVec2(x0, p0.y + rounding), rounding, 6, 9); // TR
++ }
++ else
++ {
++ draw_list->PathArcTo(ImVec2(x0, p1.y - rounding), rounding, IM_PI - arc0_e, IM_PI - arc0_b); // BL
++ draw_list->PathArcTo(ImVec2(x0, p0.y + rounding), rounding, IM_PI + arc0_b, IM_PI + arc0_e); // TR
++ }
++ if (p1.x > rect.Min.x + rounding)
++ {
++ const float arc1_b = ImAcos01(1.0f - (rect.Max.x - p1.x) * inv_rounding);
++ const float arc1_e = ImAcos01(1.0f - (rect.Max.x - p0.x) * inv_rounding);
++ const float x1 = ImMin(p1.x, rect.Max.x - rounding);
++ if (arc1_b == arc1_e)
++ {
++ draw_list->PathLineTo(ImVec2(x1, p0.y));
++ draw_list->PathLineTo(ImVec2(x1, p1.y));
++ }
++ else if (arc1_b == 0.0f && arc1_e == half_pi)
++ {
++ draw_list->PathArcToFast(ImVec2(x1, p0.y + rounding), rounding, 9, 12); // TR
++ draw_list->PathArcToFast(ImVec2(x1, p1.y - rounding), rounding, 0, 3); // BR
++ }
++ else
++ {
++ draw_list->PathArcTo(ImVec2(x1, p0.y + rounding), rounding, -arc1_e, -arc1_b); // TR
++ draw_list->PathArcTo(ImVec2(x1, p1.y - rounding), rounding, +arc1_b, +arc1_e); // BR
++ }
++ }
++ draw_list->PathFillConvex(col);
++ }
++
++ void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding)
++ {
++ const bool fill_L = (inner.Min.x > outer.Min.x);
++ const bool fill_R = (inner.Max.x < outer.Max.x);
++ const bool fill_U = (inner.Min.y > outer.Min.y);
++ const bool fill_D = (inner.Max.y < outer.Max.y);
++ if (fill_L) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Min.y), ImVec2(inner.Min.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomLeft));
++ if (fill_R) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Min.y), ImVec2(outer.Max.x, inner.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_U ? 0 : ImDrawFlags_RoundCornersTopRight) | (fill_D ? 0 : ImDrawFlags_RoundCornersBottomRight));
++ if (fill_U) draw_list->AddRectFilled(ImVec2(inner.Min.x, outer.Min.y), ImVec2(inner.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersTopLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersTopRight));
++ if (fill_D) draw_list->AddRectFilled(ImVec2(inner.Min.x, inner.Max.y), ImVec2(inner.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersNone | (fill_L ? 0 : ImDrawFlags_RoundCornersBottomLeft) | (fill_R ? 0 : ImDrawFlags_RoundCornersBottomRight));
++ if (fill_L && fill_U) draw_list->AddRectFilled(ImVec2(outer.Min.x, outer.Min.y), ImVec2(inner.Min.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopLeft);
++ if (fill_R && fill_U) draw_list->AddRectFilled(ImVec2(inner.Max.x, outer.Min.y), ImVec2(outer.Max.x, inner.Min.y), col, rounding, ImDrawFlags_RoundCornersTopRight);
++ if (fill_L && fill_D) draw_list->AddRectFilled(ImVec2(outer.Min.x, inner.Max.y), ImVec2(inner.Min.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomLeft);
++ if (fill_R && fill_D) draw_list->AddRectFilled(ImVec2(inner.Max.x, inner.Max.y), ImVec2(outer.Max.x, outer.Max.y), col, rounding, ImDrawFlags_RoundCornersBottomRight);
++ }
++
++ // Helper for ColorPicker4()
++ // NB: This is rather brittle and will show artifact when rounding this enabled if rounded corners overlap multiple cells. Caller currently responsible for avoiding that.
++ // Spent a non reasonable amount of time trying to getting this right for ColorButton with rounding+anti-aliasing+ImGuiColorEditFlags_HalfAlphaPreview flag + various grid sizes and offsets, and eventually gave up... probably more reasonable to disable rounding altogether.
++ // FIXME: uses ImGui::GetColorU32
++ void ImGui::RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 col, float grid_step, ImVec2 grid_off, float rounding, ImDrawFlags flags)
++ {
++ if ((flags & ImDrawFlags_RoundCornersMask_) == 0)
++ flags = ImDrawFlags_RoundCornersDefault_;
++ if (((col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) < 0xFF)
++ {
++ ImU32 col_bg1 = GetColorU32(ImAlphaBlendColors(IM_COL32(204, 204, 204, 255), col));
++ ImU32 col_bg2 = GetColorU32(ImAlphaBlendColors(IM_COL32(128, 128, 128, 255), col));
++ draw_list->AddRectFilled(p_min, p_max, col_bg1, rounding, flags);
++
++ int yi = 0;
++ for (float y = p_min.y + grid_off.y; y < p_max.y; y += grid_step, yi++)
++ {
++ float y1 = ImClamp(y, p_min.y, p_max.y), y2 = ImMin(y + grid_step, p_max.y);
++ if (y2 <= y1)
++ continue;
++ for (float x = p_min.x + grid_off.x + (yi & 1) * grid_step; x < p_max.x; x += grid_step * 2.0f)
++ {
++ float x1 = ImClamp(x, p_min.x, p_max.x), x2 = ImMin(x + grid_step, p_max.x);
++ if (x2 <= x1)
++ continue;
++ ImDrawFlags cell_flags = ImDrawFlags_RoundCornersNone;
++ if (y1 <= p_min.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersTopLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersTopRight; }
++ if (y2 >= p_max.y) { if (x1 <= p_min.x) cell_flags |= ImDrawFlags_RoundCornersBottomLeft; if (x2 >= p_max.x) cell_flags |= ImDrawFlags_RoundCornersBottomRight; }
++
++ // Combine flags
++ cell_flags = (flags == ImDrawFlags_RoundCornersNone || cell_flags == ImDrawFlags_RoundCornersNone) ? ImDrawFlags_RoundCornersNone : (cell_flags & flags);
++ draw_list->AddRectFilled(ImVec2(x1, y1), ImVec2(x2, y2), col_bg2, rounding, cell_flags);
++ }
++ }
++ }
++ else
++ {
++ draw_list->AddRectFilled(p_min, p_max, col, rounding, flags);
++ }
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] Decompression code
++ //-----------------------------------------------------------------------------
++ // Compressed with stb_compress() then converted to a C array and encoded as base85.
++ // Use the program in misc/fonts/binary_to_compressed_c.cpp to create the array from a TTF file.
++ // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
++ // Decompression from stb.h (public domain) by Sean Barrett https://github.com/nothings/stb/blob/master/stb.h
++ //-----------------------------------------------------------------------------
++
++ static unsigned int stb_decompress_length(const unsigned char *input)
++ {
++ return (input[8] << 24) + (input[9] << 16) + (input[10] << 8) + input[11];
++ }
++
++ static unsigned char *stb__barrier_out_e, *stb__barrier_out_b;
++ static const unsigned char *stb__barrier_in_b;
++ static unsigned char *stb__dout;
++ static void stb__match(const unsigned char *data, unsigned int length)
++ {
++ // INVERSE of memmove... write each byte before copying the next...
++ IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
++ if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
++ if (data < stb__barrier_out_b) { stb__dout = stb__barrier_out_e+1; return; }
++ while (length--) *stb__dout++ = *data++;
++ }
++
++ static void stb__lit(const unsigned char *data, unsigned int length)
++ {
++ IM_ASSERT(stb__dout + length <= stb__barrier_out_e);
++ if (stb__dout + length > stb__barrier_out_e) { stb__dout += length; return; }
++ if (data < stb__barrier_in_b) { stb__dout = stb__barrier_out_e+1; return; }
++ memcpy(stb__dout, data, length);
++ stb__dout += length;
++ }
++
++ #define stb__in2(x) ((i[x] << 8) + i[(x)+1])
++ #define stb__in3(x) ((i[x] << 16) + stb__in2((x)+1))
++ #define stb__in4(x) ((i[x] << 24) + stb__in3((x)+1))
++
++ static const unsigned char *stb_decompress_token(const unsigned char *i)
++ {
++ if (*i >= 0x20) { // use fewer if's for cases that expand small
++ if (*i >= 0x80) stb__match(stb__dout-i[1]-1, i[0] - 0x80 + 1), i += 2;
++ else if (*i >= 0x40) stb__match(stb__dout-(stb__in2(0) - 0x4000 + 1), i[2]+1), i += 3;
++ else /* *i >= 0x20 */ stb__lit(i+1, i[0] - 0x20 + 1), i += 1 + (i[0] - 0x20 + 1);
++ } else { // more ifs for cases that expand large, since overhead is amortized
++ if (*i >= 0x18) stb__match(stb__dout-(stb__in3(0) - 0x180000 + 1), i[3]+1), i += 4;
++ else if (*i >= 0x10) stb__match(stb__dout-(stb__in3(0) - 0x100000 + 1), stb__in2(3)+1), i += 5;
++ else if (*i >= 0x08) stb__lit(i+2, stb__in2(0) - 0x0800 + 1), i += 2 + (stb__in2(0) - 0x0800 + 1);
++ else if (*i == 0x07) stb__lit(i+3, stb__in2(1) + 1), i += 3 + (stb__in2(1) + 1);
++ else if (*i == 0x06) stb__match(stb__dout-(stb__in3(1)+1), i[4]+1), i += 5;
++ else if (*i == 0x04) stb__match(stb__dout-(stb__in3(1)+1), stb__in2(4)+1), i += 6;
++ }
++ return i;
++ }
++
++ static unsigned int stb_adler32(unsigned int adler32, unsigned char *buffer, unsigned int buflen)
++ {
++ const unsigned long ADLER_MOD = 65521;
++ unsigned long s1 = adler32 & 0xffff, s2 = adler32 >> 16;
++ unsigned long blocklen = buflen % 5552;
++
++ unsigned long i;
++ while (buflen) {
++ for (i=0; i + 7 < blocklen; i += 8) {
++ s1 += buffer[0], s2 += s1;
++ s1 += buffer[1], s2 += s1;
++ s1 += buffer[2], s2 += s1;
++ s1 += buffer[3], s2 += s1;
++ s1 += buffer[4], s2 += s1;
++ s1 += buffer[5], s2 += s1;
++ s1 += buffer[6], s2 += s1;
++ s1 += buffer[7], s2 += s1;
++
++ buffer += 8;
++ }
++
++ for (; i < blocklen; ++i)
++ s1 += *buffer++, s2 += s1;
++
++ s1 %= ADLER_MOD, s2 %= ADLER_MOD;
++ buflen -= blocklen;
++ blocklen = 5552;
++ }
++ return (unsigned int)(s2 << 16) + (unsigned int)s1;
++ }
++
++ static unsigned int stb_decompress(unsigned char *output, const unsigned char *i, unsigned int /*length*/)
++ {
++ if (stb__in4(0) != 0x57bC0000) return 0;
++ if (stb__in4(4) != 0) return 0; // error! stream is > 4GB
++ const unsigned int olen = stb_decompress_length(i);
++ stb__barrier_in_b = i;
++ stb__barrier_out_e = output + olen;
++ stb__barrier_out_b = output;
++ i += 16;
++
++ stb__dout = output;
++ for (;;) {
++ const unsigned char *old_i = i;
++ i = stb_decompress_token(i);
++ if (i == old_i) {
++ if (*i == 0x05 && i[1] == 0xfa) {
++ IM_ASSERT(stb__dout == output + olen);
++ if (stb__dout != output + olen) return 0;
++ if (stb_adler32(1, output, olen) != (unsigned int) stb__in4(2))
++ return 0;
++ return olen;
++ } else {
++ IM_ASSERT(0); /* NOTREACHED */
++ return 0;
++ }
++ }
++ IM_ASSERT(stb__dout <= output + olen);
++ if (stb__dout > output + olen)
++ return 0;
++ }
++ }
++
++ //-----------------------------------------------------------------------------
++ // [SECTION] Default font data (ProggyClean.ttf)
++ //-----------------------------------------------------------------------------
++ // ProggyClean.ttf
++ // Copyright (c) 2004, 2005 Tristan Grimmer
++ // MIT license (see License.txt in http://www.proggyfonts.net/index.php?menu=download)
++ //-----------------------------------------------------------------------------
++ // File: 'ProggyClean.ttf' (41208 bytes)
++ // Exported using misc/fonts/binary_to_compressed_c.cpp (with compression + base85 string encoding).
++ // The purpose of encoding as base85 instead of "0x00,0x01,..." style is only save on _source code_ size.
++ //-----------------------------------------------------------------------------
++ static const char proggy_clean_ttf_compressed_data_base85[11980 + 1] =
++ "7])#######hV0qs'/###[),##/l:$#Q6>##5[n42>c-TH`->>#/e>11NNV=Bv(*:.F?uu#(gRU.o0XGH`$vhLG1hxt9?W`#,5LsCp#-i>.r$<$6pD>Lb';9Crc6tgXmKVeU2cD4Eo3R/"
++ "2*>]b(MC;$jPfY.;h^`IWM9<Lh2TlS+f-s$o6Q<BWH`YiU.xfLq$N;$0iR/GX:U(jcW2p/W*q?-qmnUCI;jHSAiFWM.R*kU@C=GH?a9wp8f$e.-4^Qg1)Q-GL(lf(r/7GrRgwV%MS=C#"
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++ ">gXm8YB`1d@K#n]76-a$U,mF<fX]idqd)<3,]J7JmW4`6]uks=4-72L(jEk+:bJ0M^q-8Dm_Z?0olP1C9Sa&H[d&c$ooQUj]Exd*3ZM@-WGW2%s',B-_M%>%Ul:#/'xoFM9QX-$.QN'>"
++ "[%$Z$uF6pA6Ki2O5:8w*vP1<-1`[G,)-m#>0`P&#eb#.3i)rtB61(o'$?X3B</R90;eZ]%Ncq;-Tl]#F>2Qft^ae_5tKL9MUe9b*sLEQ95C&`=G?@Mj=wh*'3E>=-<)Gt*Iw)'QG:`@I"
++ "wOf7&]1i'S01B+Ev/Nac#9S;=;YQpg_6U`*kVY39xK,[/6Aj7:'1Bm-_1EYfa1+o&o4hp7KN_Q(OlIo@S%;jVdn0'1<Vc52=u`3^o-n1'g4v58Hj&6_t7$##?M)c<$bgQ_'SY((-xkA#"
++ "Y(,p'H9rIVY-b,'%bCPF7.J<Up^,(dU1VY*5#WkTU>h19w,WQhLI)3S#f$2(eb,jr*b;3Vw]*7NH%$c4Vs,eD9>XW8?N]o+(*pgC%/72LV-u<Hp,3@e^9UB1J+ak9-TN/mhKPg+AJYd$"
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++ "i]lR8qQ2oA8wcRCZ^7w/Njh;?.stX?Q1>S1q4Bn$)K1<-rGdO'$Wr.Lc.CG)$/*JL4tNR/,SVO3,aUw'DJN:)Ss;wGn9A32ijw%FL+Z0Fn.U9;reSq)bmI32U==5ALuG&#Vf1398/pVo"
++ "1*c-(aY168o<`JsSbk-,1N;$>0:OUas(3:8Z972LSfF8eb=c-;>SPw7.6hn3m`9^Xkn(r.qS[0;T%&Qc=+STRxX'q1BNk3&*eu2;&8q$&x>Q#Q7^Tf+6<(d%ZVmj2bDi%.3L2n+4W'$P"
++ "iDDG)g,r%+?,$@?uou5tSe2aN_AQU*<h`e-GI7)?OK2A.d7_c)?wQ5AS@DL3r#7fSkgl6-++D:'A,uq7SvlB$pcpH'q3n0#_%dY#xCpr-l<F0NR@-##FEV6NTF6##$l84N1w?AO>'IAO"
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++ ";u.T%fAr%4tJ8&><1=GHZ_+m9/#H1F^R#SC#*N=BA9(D?v[UiFY>>^8p,KKF.W]L29uLkLlu/+4T<XoIB&hx=T1PcDaB&;HH+-AFr?(m9HZV)FKS8JCw;SD=6[^/DZUL`EUDf]GGlG&>"
++ "w$)F./^n3+rlo+DB;5sIYGNk+i1t-69Jg--0pao7Sm#K)pdHW&;LuDNH@H>#/X-TI(;P>#,Gc>#0Su>#4`1?#8lC?#<xU?#@.i?#D:%@#HF7@#LRI@#P_[@#Tkn@#Xw*A#]-=A#a9OA#"
++ "d<F&#*;G##.GY##2Sl##6`($#:l:$#>xL$#B.`$#F:r$#JF.%#NR@%#R_R%#Vke%#Zww%#_-4&#3^Rh%Sflr-k'MS.o?.5/sWel/wpEM0%3'/1)K^f1-d>G21&v(35>V`39V7A4=onx4"
++ "A1OY5EI0;6Ibgr6M$HS7Q<)58C5w,;WoA*#[%T*#`1g*#d=#+#hI5+#lUG+#pbY+#tnl+#x$),#&1;,#*=M,#.I`,#2Ur,#6b.-#;w[H#iQtA#m^0B#qjBB#uvTB##-hB#'9$C#+E6C#"
++ "/QHC#3^ZC#7jmC#;v)D#?,<D#C8ND#GDaD#KPsD#O]/E#g1A5#KA*1#gC17#MGd;#8(02#L-d3#rWM4#Hga1#,<w0#T.j<#O#'2#CYN1#qa^:#_4m3#o@/=#eG8=#t8J5#`+78#4uI-#"
++ "m3B2#SB[8#Q0@8#i[*9#iOn8#1Nm;#^sN9#qh<9#:=x-#P;K2#$%X9#bC+.#Rg;<#mN=.#MTF.#RZO.#2?)4#Y#(/#[)1/#b;L/#dAU/#0Sv;#lY$0#n`-0#sf60#(F24#wrH0#%/e0#"
++ "TmD<#%JSMFove:CTBEXI:<eh2g)B,3h2^G3i;#d3jD>)4kMYD4lVu`4m`:&5niUA5@(A5BA1]PBB:xlBCC=2CDLXMCEUtiCf&0g2'tN?PGT4CPGT4CPGT4CPGT4CPGT4CPGT4CPGT4CP"
++ "GT4CPGT4CPGT4CPGT4CPGT4CPGT4CP-qekC`.9kEg^+F$kwViFJTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5KTB&5o,^<-28ZI'O?;xp"
++ "O?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xpO?;xp;7q-#lLYI:xvD=#";
++
++ static const char* GetDefaultCompressedFontDataTTFBase85()
++ {
++ return proggy_clean_ttf_compressed_data_base85;
++ }
++
++ #endif // #ifndef IMGUI_DISABLE