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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:critical reason:data-parser
#include "qplatformdefs.h"
#include "qsvghandler_p.h"
#include "qsvgdocument_p.h"
#include "qsvgstructure_p.h"
#include "qsvgfilter_p.h"
#include "qsvgnode_p.h"
#include "qsvganimate_p.h"
#include "qpen.h"
#include "qpainterpath.h"
#include "qbrush.h"
#include "qcolor.h"
#include "qtextformat.h"
#include <QtCore/private/qdataurl_p.h>
#include "qlist.h"
#include "qfileinfo.h"
#include "qfile.h"
#include "qdir.h"
#include "qdebug.h"
#include "qmath.h"
#include "qnumeric.h"
#include <qregularexpression.h>
#include "qtransform.h"
#include "qvarlengtharray.h"
#include "qimagereader.h"
#include "float.h"
#include <algorithm>
#include <memory>
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
Q_LOGGING_CATEGORY(lcSvgHandler, "qt.svg")
namespace {
namespace tokens {
// common
constexpr auto inherit = "inherit"_L1;
constexpr auto normal = "normal"_L1;
// font-style
constexpr auto italic = "italic"_L1;
constexpr auto oblique = "oblique"_L1;
// font-weight
constexpr auto bold = "bold"_L1;
constexpr auto bolder = "bolder"_L1;
constexpr auto lighter = "lighter"_L1;
// font-variant
constexpr auto small_caps = "small-caps"_L1;
// text-anchor
constexpr auto start = "start"_L1;
constexpr auto middle = "middle"_L1;
constexpr auto end = "end"_L1;
// comp-op
namespace compOp{
constexpr auto clear = "clear"_L1;
constexpr auto src = "src"_L1;
constexpr auto dst = "dst"_L1;
constexpr auto srcOver = "src-over"_L1;
constexpr auto dstOver = "dst-over"_L1;
constexpr auto srcIn = "src-in"_L1;
constexpr auto dstIn = "dst-in"_L1;
constexpr auto srcOut = "src-out"_L1;
constexpr auto dstOut = "dst-out"_L1;
constexpr auto srcAtop = "src-atop"_L1;
constexpr auto dstAtop = "dst-atop"_L1;
constexpr auto xorOp = "xor"_L1;
constexpr auto plus = "plus"_L1;
constexpr auto multiply = "multiply"_L1;
constexpr auto screen = "screen"_L1;
constexpr auto overlay = "overlay"_L1;
constexpr auto darken = "darken"_L1;
constexpr auto lighten = "lighten"_L1;
constexpr auto colorDodge = "color-dodge"_L1;
constexpr auto colorBurn = "color-burn"_L1;
constexpr auto hardLight = "hard-light"_L1;
constexpr auto softLight = "soft-light"_L1;
constexpr auto difference = "difference"_L1;
constexpr auto exclusion = "exclusion"_L1;
} // namespace compOp
} // namespace tokens
} // unnamed namespace
static QByteArray prefixMessage(const QByteArray &msg, const QXmlStreamReader *r)
{
QByteArray result;
if (r) {
if (const QFile *file = qobject_cast<const QFile *>(r->device()))
result.append(QFile::encodeName(QDir::toNativeSeparators(file->fileName())));
else
result.append(QByteArrayLiteral("<input>"));
result.append(':');
result.append(QByteArray::number(r->lineNumber()));
if (const qint64 column = r->columnNumber()) {
result.append(':');
result.append(QByteArray::number(column));
}
result.append(QByteArrayLiteral(": "));
}
result.append(msg);
return result;
}
static inline QByteArray msgProblemParsing(QStringView localName, const QXmlStreamReader *r)
{
return prefixMessage("Problem parsing " + localName.toLocal8Bit(), r);
}
static inline QByteArray msgCouldNotResolveProperty(QStringView id, const QXmlStreamReader *r)
{
return prefixMessage("Could not resolve property: " + id.toLocal8Bit(), r);
}
static QList<QStringView> splitWithDelimiter(QStringView delimitedList)
{
static const QRegularExpression delimiterRE(QStringLiteral("[,\\s]+"));
return delimitedList.split(delimiterRE, Qt::SkipEmptyParts);
}
// ======== duplicated from qcolor_p
static inline int qsvg_h2i(char hex, bool *ok = nullptr)
{
if (hex >= '0' && hex <= '9')
return hex - '0';
if (hex >= 'a' && hex <= 'f')
return hex - 'a' + 10;
if (hex >= 'A' && hex <= 'F')
return hex - 'A' + 10;
if (ok)
*ok = false;
return -1;
}
static inline int qsvg_hex2int(const char *s, bool *ok = nullptr)
{
return (qsvg_h2i(s[0], ok) * 16) | qsvg_h2i(s[1], ok);
}
static inline int qsvg_hex2int(char s, bool *ok = nullptr)
{
int h = qsvg_h2i(s, ok);
return (h * 16) | h;
}
bool qsvg_get_hex_rgb(const char *name, QRgb *rgb)
{
if(name[0] != '#')
return false;
name++;
const size_t len = qstrlen(name);
int r, g, b;
bool ok = true;
if (len == 12) {
r = qsvg_hex2int(name, &ok);
g = qsvg_hex2int(name + 4, &ok);
b = qsvg_hex2int(name + 8, &ok);
} else if (len == 9) {
r = qsvg_hex2int(name, &ok);
g = qsvg_hex2int(name + 3, &ok);
b = qsvg_hex2int(name + 6, &ok);
} else if (len == 6) {
r = qsvg_hex2int(name, &ok);
g = qsvg_hex2int(name + 2, &ok);
b = qsvg_hex2int(name + 4, &ok);
} else if (len == 3) {
r = qsvg_hex2int(name[0], &ok);
g = qsvg_hex2int(name[1], &ok);
b = qsvg_hex2int(name[2], &ok);
} else {
r = g = b = -1;
}
if ((uint)r > 255 || (uint)g > 255 || (uint)b > 255 || !ok) {
*rgb = 0;
return false;
}
*rgb = qRgb(r, g ,b);
return true;
}
bool qsvg_get_hex_rgb(const QChar *str, int len, QRgb *rgb)
{
if (len > 13)
return false;
char tmp[16];
for(int i = 0; i < len; ++i)
tmp[i] = str[i].toLatin1();
tmp[len] = 0;
return qsvg_get_hex_rgb(tmp, rgb);
}
// ======== end of qcolor_p duplicate
static inline QString someId(const QXmlStreamAttributes &attributes)
{
QStringView id = attributes.value(QLatin1String("id"));
if (id.isEmpty())
id = attributes.value(QLatin1String("xml:id"));
return id.toString();
}
struct QSvgAttributes
{
QSvgAttributes(const QXmlStreamAttributes &xmlAttributes, QSvgHandler *handler);
void setAttributes(const QXmlStreamAttributes &attributes, QSvgHandler *handler);
QString id;
QStringView color;
QStringView colorOpacity;
QStringView fill;
QStringView fillRule;
QStringView fillOpacity;
QStringView stroke;
QStringView strokeDashArray;
QStringView strokeDashOffset;
QStringView strokeLineCap;
QStringView strokeLineJoin;
QStringView strokeMiterLimit;
QStringView strokeOpacity;
QStringView strokeWidth;
QStringView vectorEffect;
QStringView fontFamily;
QStringView fontSize;
QStringView fontStyle;
QStringView fontWeight;
QStringView fontVariant;
QStringView textAnchor;
QStringView transform;
QStringView visibility;
QStringView opacity;
QStringView compOp;
QStringView display;
QStringView offset;
QStringView stopColor;
QStringView stopOpacity;
QStringView imageRendering;
QStringView mask;
QStringView markerStart;
QStringView markerMid;
QStringView markerEnd;
QStringView filter;
};
QSvgAttributes::QSvgAttributes(const QXmlStreamAttributes &xmlAttributes, QSvgHandler *handler)
{
setAttributes(xmlAttributes, handler);
}
void QSvgAttributes::setAttributes(const QXmlStreamAttributes &attributes, QSvgHandler *handler)
{
for (const QXmlStreamAttribute &attribute : attributes) {
QStringView name = attribute.qualifiedName();
if (name.isEmpty())
continue;
QStringView value = attribute.value();
switch (name.at(0).unicode()) {
case 'c':
if (name == QLatin1String("color"))
color = value;
else if (name == QLatin1String("color-opacity"))
colorOpacity = value;
else if (name == QLatin1String("comp-op"))
compOp = value;
break;
case 'd':
if (name == QLatin1String("display"))
display = value;
break;
case 'f':
if (name == QLatin1String("fill"))
fill = value;
else if (name == QLatin1String("fill-rule"))
fillRule = value;
else if (name == QLatin1String("fill-opacity"))
fillOpacity = value;
else if (name == QLatin1String("font-family"))
fontFamily = value;
else if (name == QLatin1String("font-size"))
fontSize = value;
else if (name == QLatin1String("font-style"))
fontStyle = value;
else if (name == QLatin1String("font-weight"))
fontWeight = value;
else if (name == QLatin1String("font-variant"))
fontVariant = value;
else if (name == QLatin1String("filter") &&
!handler->options().testFlag(QtSvg::Tiny12FeaturesOnly))
filter = value;
break;
case 'i':
if (name == QLatin1String("id"))
id = value.toString();
else if (name == QLatin1String("image-rendering"))
imageRendering = value;
break;
case 'm':
if (name == QLatin1String("mask") &&
!handler->options().testFlag(QtSvg::Tiny12FeaturesOnly))
mask = value;
if (name == QLatin1String("marker-start") &&
!handler->options().testFlag(QtSvg::Tiny12FeaturesOnly))
markerStart = value;
if (name == QLatin1String("marker-mid") &&
!handler->options().testFlag(QtSvg::Tiny12FeaturesOnly))
markerMid = value;
if (name == QLatin1String("marker-end") &&
!handler->options().testFlag(QtSvg::Tiny12FeaturesOnly))
markerEnd = value;
break;
case 'o':
if (name == QLatin1String("opacity"))
opacity = value;
if (name == QLatin1String("offset"))
offset = value;
break;
case 's':
if (name.size() > 5 && name.mid(1, 5) == QLatin1String("troke")) {
QStringView strokeRef = name.mid(6, name.size() - 6);
if (strokeRef.isEmpty())
stroke = value;
else if (strokeRef == QLatin1String("-dasharray"))
strokeDashArray = value;
else if (strokeRef == QLatin1String("-dashoffset"))
strokeDashOffset = value;
else if (strokeRef == QLatin1String("-linecap"))
strokeLineCap = value;
else if (strokeRef == QLatin1String("-linejoin"))
strokeLineJoin = value;
else if (strokeRef == QLatin1String("-miterlimit"))
strokeMiterLimit = value;
else if (strokeRef == QLatin1String("-opacity"))
strokeOpacity = value;
else if (strokeRef == QLatin1String("-width"))
strokeWidth = value;
} else if (name == QLatin1String("stop-color"))
stopColor = value;
else if (name == QLatin1String("stop-opacity"))
stopOpacity = value;
break;
case 't':
if (name == QLatin1String("text-anchor"))
textAnchor = value;
else if (name == QLatin1String("transform"))
transform = value;
break;
case 'v':
if (name == QLatin1String("vector-effect"))
vectorEffect = value;
else if (name == QLatin1String("visibility"))
visibility = value;
break;
case 'x':
if (name == QLatin1String("xml:id") && id.isEmpty())
id = value.toString();
break;
default:
break;
}
}
}
QList<qreal> parseNumbersList(QStringView *str)
{
QList<qreal> points;
if (!str)
return points;
points.reserve(32);
while (!str->isEmpty() && str->first().isSpace())
str->slice(1);
while (!str->isEmpty()
&& (QGuiSvg::isDigit(str->first().unicode()) || str->startsWith(QLatin1Char('-'))
|| str->startsWith(QLatin1Char('+')) || str->startsWith(QLatin1Char('.')))) {
points.append(QGuiSvg::toDouble(str));
while (!str->isEmpty() && str->first().isSpace())
str->slice(1);
if (str->startsWith(QLatin1Char(',')))
str->slice(1);
//eat the rest of space
while (!str->isEmpty() && str->first().isSpace())
str->slice(1);
}
return points;
}
static QList<qreal> parsePercentageList(QStringView str)
{
QList<qreal> points;
while (!str.isEmpty() && str.first().isSpace())
str.slice(1);
while ((!str.isEmpty() && str.first() >= QLatin1Char('0') && str.first() <= QLatin1Char('9'))
|| str.startsWith(QLatin1Char('-')) || str.startsWith(QLatin1Char('+'))
|| str.startsWith(QLatin1Char('.'))) {
points.append(QGuiSvg::toDouble(&str));
while (!str.isEmpty() && str.first().isSpace())
str.slice(1);
if (str.startsWith(QLatin1Char('%')))
str.slice(1);
while (!str.isEmpty() && str.first().isSpace())
str.slice(1);
if (str.startsWith(QLatin1Char(',')))
str.slice(1);
//eat the rest of space
while (!str.isEmpty() && str.first().isSpace())
str.slice(1);
}
return points;
}
/**
* The form is <IRI>. This function parses local
* IRI references, i.e, resources referenced within
* the current document. e.g, href = "#id"
*/
static QStringView idFromIRI(QStringView iri)
{
iri = iri.trimmed();
if (!iri.startsWith(QLatin1Char('#')))
return QStringView();
return iri.sliced(1);
}
/**
* The form is <FuncIRI>, where FuncIRI takes
* the form of url(<IRI>). This syntax is used
* in properties that accept both strings and
* IRIs, eliminating any ambiguity. e.g, fill = "url(#id)"
*/
static QStringView idFromFuncIRI(QStringView iri)
{
iri = iri.trimmed();
if (!iri.startsWith(QLatin1StringView("url(")))
return QStringView();
iri.slice(4);
const qsizetype closingBracePos = iri.indexOf(QLatin1Char(')'));
if (closingBracePos == -1)
return QStringView();
iri = iri.first(closingBracePos);
return idFromIRI(iri);
}
/**
* returns true when successfully set the color. false signifies
* that the color should be inherited
*/
bool resolveColor(QStringView colorStr, QColor &color, QSvgHandler *handler)
{
QStringView colorStrTr = colorStr.trimmed();
if (colorStrTr.isEmpty())
return false;
switch(colorStrTr.at(0).unicode()) {
case '#':
{
// #rrggbb is very very common, so let's tackle it here
// rather than falling back to QColor
QRgb rgb;
bool ok = qsvg_get_hex_rgb(colorStrTr.constData(), colorStrTr.size(), &rgb);
if (ok)
color.setRgb(rgb);
return ok;
}
break;
case 'r':
{
// starts with "rgb(", ends with ")" and consists of at least 7 characters "rgb(,,)"
if (colorStrTr.size() >= 7 && colorStrTr.at(colorStrTr.size() - 1) == QLatin1Char(')')
&& colorStrTr.mid(0, 4) == QLatin1String("rgb(")) {
QStringView sv{ colorStrTr.sliced(4) };
QList<qreal> compo = parseNumbersList(&sv);
//1 means that it failed after reaching non-parsable
//character which is going to be "%"
if (compo.size() == 1) {
compo = parsePercentageList(colorStrTr.sliced(4));
for (int i = 0; i < compo.size(); ++i)
compo[i] *= (qreal)2.55;
}
if (compo.size() == 3) {
color = QColor(int(compo[0]),
int(compo[1]),
int(compo[2]));
return true;
}
return false;
}
}
break;
case 'c':
if (colorStrTr == QLatin1String("currentColor")) {
color = handler->currentColor();
return true;
}
break;
case 'i':
if (colorStrTr == tokens::inherit)
return false;
break;
default:
break;
}
color = QColor::fromString(colorStrTr);
return color.isValid();
}
void setAlpha(QStringView opacity, QColor *color)
{
bool ok = true;
qreal op = qBound(qreal(0.0), QGuiSvg::toDouble(opacity, &ok), qreal(1.0));
if (!ok)
op = 1.0;
color->setAlphaF(op);
}
static bool constructColor(QStringView colorStr, QStringView opacity,
QColor &color, QSvgHandler *handler)
{
if (!resolveColor(colorStr, color, handler))
return false;
if (!opacity.isEmpty())
setAlpha(opacity, &color);
return true;
}
static inline qreal convertToNumber(QStringView str, bool tiny12FeaturesOnly, bool *ok = NULL)
{
QGuiSvg::LengthType type;
qreal num = QGuiSvg::parseLength(str.toString(), &type, ok, tiny12FeaturesOnly);
if (type == QGuiSvg::LengthType::LT_PERCENT) {
num = num/100.0;
}
return num;
}
static bool createSvgGlyph(QSvgFont *font, const QXmlStreamAttributes &attributes,
bool isMissingGlyph)
{
QStringView uncStr = attributes.value(QLatin1String("unicode"));
QStringView havStr = attributes.value(QLatin1String("horiz-adv-x"));
QStringView pathStr = attributes.value(QLatin1String("d"));
qreal havx = (havStr.isEmpty()) ? -1 : QGuiSvg::toDouble(havStr);
QPainterPath path = QGuiSvg::parsePath(pathStr).value_or(QPainterPath());
path.setFillRule(Qt::WindingFill);
if (isMissingGlyph) {
if (!uncStr.isEmpty())
qWarning("Ignoring missing-glyph's 'unicode' attribute");
return font->addMissingGlyph(path, havx);
}
if (uncStr.isEmpty()) {
qWarning("glyph does not define a non-empty 'unicode' attribute and will be ignored");
return false;
}
font->addGlyph(uncStr.toString(), path, havx);
return true;
}
static void parseColor(QSvgNode *,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
QColor color;
if (constructColor(attributes.color, attributes.colorOpacity, color, handler)) {
handler->popColor();
handler->pushColor(color);
}
}
static QSvgPaintServerSharedPtr paintServerFromUrl(QSvgDocument *doc, QStringView url)
{
QStringView id = idFromFuncIRI(url);
return doc ? doc->paintServer(id) : nullptr;
}
static void parseBrush(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
if (!attributes.fill.isEmpty() || !attributes.fillRule.isEmpty() || !attributes.fillOpacity.isEmpty()) {
QSvgFillStylePtr prop = std::make_unique<QSvgFillStyle>();
//fill-rule attribute handling
if (!attributes.fillRule.isEmpty() && attributes.fillRule != tokens::inherit) {
if (attributes.fillRule == QLatin1String("evenodd"))
prop->setFillRule(Qt::OddEvenFill);
else if (attributes.fillRule == QLatin1String("nonzero"))
prop->setFillRule(Qt::WindingFill);
}
//fill-opacity attribute handling
if (!attributes.fillOpacity.isEmpty() && attributes.fillOpacity != tokens::inherit) {
prop->setFillOpacity(qMin(qreal(1.0), qMax(qreal(0.0), QGuiSvg::toDouble(attributes.fillOpacity))));
}
//fill attribute handling
if (!attributes.fill.isEmpty() && attributes.fill != tokens::inherit) {
if (attributes.fill.startsWith(QLatin1String("url"))) {
QStringView value = attributes.fill;
QSvgPaintServerSharedPtr paintServer = paintServerFromUrl(handler->document(), value);
if (paintServer) {
prop->setPaintServer(std::move(paintServer));
} else {
QString id = idFromFuncIRI(value).toString();
prop->setPaintStyleId(id);
handler->pushUnresolvedStyle(prop.get());
}
} else if (attributes.fill != QLatin1String("none")) {
QColor color;
if (resolveColor(attributes.fill, color, handler))
prop->setBrush(QBrush(color));
} else {
prop->setBrush(QBrush(Qt::NoBrush));
}
}
node->appendStyleProperty(std::move(prop));
}
}
static QTransform parseTransformationMatrix(QStringView value)
{
if (value.isEmpty())
return QTransform();
QTransform matrix;
while (!value.isEmpty()) {
if (value.first().isSpace() || value.startsWith(QLatin1Char(','))) {
value.slice(1);
continue;
}
enum State {
Matrix,
Translate,
Rotate,
Scale,
SkewX,
SkewY
};
State state = Matrix;
if (value.startsWith(QLatin1Char('m'))) { //matrix
const char *ident = "atrix";
for (int i = 0; i < 5; ++i)
if (!value.slice(1).startsWith(QLatin1Char(ident[i])))
goto error;
value.slice(1);
state = Matrix;
} else if (value.startsWith(QLatin1Char('t'))) { //translate
const char *ident = "ranslate";
for (int i = 0; i < 8; ++i)
if (!value.slice(1).startsWith(QLatin1Char(ident[i])))
goto error;
value.slice(1);
state = Translate;
} else if (value.startsWith(QLatin1Char('r'))) { //rotate
const char *ident = "otate";
for (int i = 0; i < 5; ++i)
if (!value.slice(1).startsWith(QLatin1Char(ident[i])))
goto error;
value.slice(1);
state = Rotate;
} else if (value.startsWith(QLatin1Char('s'))) { //scale, skewX, skewY
value.slice(1);
if (value.startsWith(QLatin1Char('c'))) {
const char *ident = "ale";
for (int i = 0; i < 3; ++i)
if (!value.slice(1).startsWith(QLatin1Char(ident[i])))
goto error;
value.slice(1);
state = Scale;
} else if (value.startsWith(QLatin1Char('k'))) {
if (!value.slice(1).startsWith(QLatin1Char('e')))
goto error;
if (!value.slice(1).startsWith(QLatin1Char('w')))
goto error;
value.slice(1);
if (value.startsWith(QLatin1Char('X')))
state = SkewX;
else if (value.startsWith(QLatin1Char('Y')))
state = SkewY;
else
goto error;
value.slice(1);
} else {
goto error;
}
} else {
goto error;
}
while (!value.isEmpty() && value.first().isSpace())
value.slice(1);
if (!value.startsWith(QLatin1Char('(')))
goto error;
value.slice(1);
QVarLengthArray<qreal, 8> points;
QGuiSvg::parseNumbersArray(&value, points);
if (!value.startsWith(QLatin1Char(')')))
goto error;
value.slice(1);
if(state == Matrix) {
if(points.size() != 6)
goto error;
matrix = QTransform(points[0], points[1],
points[2], points[3],
points[4], points[5]) * matrix;
} else if (state == Translate) {
if (points.size() == 1)
matrix.translate(points[0], 0);
else if (points.size() == 2)
matrix.translate(points[0], points[1]);
else
goto error;
} else if (state == Rotate) {
if(points.size() == 1) {
matrix.rotate(points[0]);
} else if (points.size() == 3) {
matrix.translate(points[1], points[2]);
matrix.rotate(points[0]);
matrix.translate(-points[1], -points[2]);
} else {
goto error;
}
} else if (state == Scale) {
if (points.size() < 1 || points.size() > 2)
goto error;
qreal sx = points[0];
qreal sy = sx;
if(points.size() == 2)
sy = points[1];
matrix.scale(sx, sy);
} else if (state == SkewX) {
if (points.size() != 1)
goto error;
matrix.shear(qTan(qDegreesToRadians(points[0])), 0);
} else if (state == SkewY) {
if (points.size() != 1)
goto error;
matrix.shear(0, qTan(qDegreesToRadians(points[0])));
}
}
error:
return matrix;
}
static void parsePen(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
if (!attributes.stroke.isEmpty() || !attributes.strokeDashArray.isEmpty() || !attributes.strokeDashOffset.isEmpty() || !attributes.strokeLineCap.isEmpty()
|| !attributes.strokeLineJoin.isEmpty() || !attributes.strokeMiterLimit.isEmpty() || !attributes.strokeOpacity.isEmpty() || !attributes.strokeWidth.isEmpty()
|| !attributes.vectorEffect.isEmpty()) {
QSvgStrokeStylePtr prop = std::make_unique<QSvgStrokeStyle>();
//stroke attribute handling
if (!attributes.stroke.isEmpty() && attributes.stroke != tokens::inherit) {
if (attributes.stroke.startsWith(QLatin1String("url"))) {
QStringView value = attributes.stroke;
QSvgPaintServerSharedPtr paintServer = paintServerFromUrl(handler->document(), value);
if (paintServer) {
prop->setPaintServer(std::move(paintServer));
} else {
QString id = idFromFuncIRI(value).toString();
prop->setPaintStyleId(id);
handler->pushUnresolvedStyle(prop.get());
}
} else if (attributes.stroke != QLatin1String("none")) {
QColor color;
if (resolveColor(attributes.stroke, color, handler))
prop->setStroke(QBrush(color));
} else {
prop->setStroke(QBrush(Qt::NoBrush));
}
}
//stroke-width handling
if (!attributes.strokeWidth.isEmpty() && attributes.strokeWidth != tokens::inherit) {
QGuiSvg::LengthType lt;
prop->setWidth(QGuiSvg::parseLength(attributes.strokeWidth, <));
}
//stroke-dasharray
if (!attributes.strokeDashArray.isEmpty() && attributes.strokeDashArray != tokens::inherit) {
if (attributes.strokeDashArray == QLatin1String("none")) {
prop->setDashArrayNone();
} else {
QStringView dashArray = attributes.strokeDashArray;
QList<qreal> dashes = parseNumbersList(&dashArray);
const bool allZeroes = std::all_of(dashes.cbegin(), dashes.cend(),
[](qreal i) { return qFuzzyIsNull(i); });
const bool hasNegative = !allZeroes && std::any_of(dashes.cbegin(), dashes.cend(),
[](qreal i) { return i < 0.; });
if (hasNegative)
qCWarning(lcSvgHandler) << "QSvgHandler: Stroke dash array "
"with a negative value is invalid";
// if the stroke dash array contains only zeros or a negative value,
// force drawing of solid line.
if (allZeroes || hasNegative) {
prop->setDashArrayNone();
} else {
// if the dash count is odd the dashes should be duplicated
if ((dashes.size() & 1) != 0)
dashes << QList<qreal>(dashes);
prop->setDashArray(dashes);
}
}
}
//stroke-linejoin attribute handling
if (!attributes.strokeLineJoin.isEmpty()) {
if (attributes.strokeLineJoin == QLatin1String("miter"))
prop->setLineJoin(Qt::SvgMiterJoin);
else if (attributes.strokeLineJoin == QLatin1String("round"))
prop->setLineJoin(Qt::RoundJoin);
else if (attributes.strokeLineJoin == QLatin1String("bevel"))
prop->setLineJoin(Qt::BevelJoin);
}
//stroke-linecap attribute handling
if (!attributes.strokeLineCap.isEmpty()) {
if (attributes.strokeLineCap == QLatin1String("butt"))
prop->setLineCap(Qt::FlatCap);
else if (attributes.strokeLineCap == QLatin1String("round"))
prop->setLineCap(Qt::RoundCap);
else if (attributes.strokeLineCap == QLatin1String("square"))
prop->setLineCap(Qt::SquareCap);
}
//stroke-dashoffset attribute handling
if (!attributes.strokeDashOffset.isEmpty() && attributes.strokeDashOffset != tokens::inherit)
prop->setDashOffset(QGuiSvg::toDouble(attributes.strokeDashOffset));
//vector-effect attribute handling
if (!attributes.vectorEffect.isEmpty()) {
if (attributes.vectorEffect == QLatin1String("non-scaling-stroke"))
prop->setVectorEffect(true);
else if (attributes.vectorEffect == QLatin1String("none"))
prop->setVectorEffect(false);
}
//stroke-miterlimit
if (!attributes.strokeMiterLimit.isEmpty() && attributes.strokeMiterLimit != tokens::inherit)
prop->setMiterLimit(QGuiSvg::toDouble(attributes.strokeMiterLimit));
//stroke-opacity atttribute handling
if (!attributes.strokeOpacity.isEmpty() && attributes.strokeOpacity != tokens::inherit)
prop->setOpacity(qMin(qreal(1.0), qMax(qreal(0.0), QGuiSvg::toDouble(attributes.strokeOpacity))));
node->appendStyleProperty(std::move(prop));
}
}
enum FontSizeSpec { XXSmall, XSmall, Small, Medium, Large, XLarge, XXLarge,
FontSizeNone, FontSizeValue };
static const qreal sizeTable[] =
{ qreal(6.9), qreal(8.3), qreal(10.0), qreal(12.0), qreal(14.4), qreal(17.3), qreal(20.7) };
Q_STATIC_ASSERT(sizeof(sizeTable)/sizeof(sizeTable[0]) == FontSizeNone);
static FontSizeSpec fontSizeSpec(QStringView spec)
{
switch (spec.at(0).unicode()) {
case 'x':
if (spec == QLatin1String("xx-small"))
return XXSmall;
if (spec == QLatin1String("x-small"))
return XSmall;
if (spec == QLatin1String("x-large"))
return XLarge;
if (spec == QLatin1String("xx-large"))
return XXLarge;
break;
case 's':
if (spec == QLatin1String("small"))
return Small;
break;
case 'm':
if (spec == QLatin1String("medium"))
return Medium;
break;
case 'l':
if (spec == QLatin1String("large"))
return Large;
break;
case 'n':
if (spec == QLatin1String("none"))
return FontSizeNone;
break;
default:
break;
}
return FontSizeValue;
}
static std::optional<QFont::Style> parseFontStyle(QStringView s)
{
// Value: normal | italic | oblique
if (s == tokens::normal)
return QFont::StyleNormal;
if (s == tokens::italic)
return QFont::StyleItalic;
if (s == tokens::oblique)
return QFont::StyleOblique;
return std::nullopt; // incl. empty and tokens::inherit
}
static std::optional<qreal> parseFontSize(QStringView s, bool tiny12FeaturesOnly)
{
// Value: <absolute-size> | <relative-size> | <length-percentage>
// <absolute-size>: [ xx-small | x-small | small | medium | large | x-large | xx-large ]
// <relative-size>: [ larger | smaller ]
// TODO: Support <relative-size>s
if (s.isEmpty() || s == tokens::inherit)
return std::nullopt;
const FontSizeSpec spec = fontSizeSpec(s);
switch (spec) {
case FontSizeNone:
return std::nullopt;
case FontSizeValue: {
QGuiSvg::LengthType type;
bool ok = false;
qreal fs = QGuiSvg::parseLength(s, &type, &ok, tiny12FeaturesOnly);
if (!ok)
return std::nullopt;
fs = QGuiSvg::convertToPixels(fs, true, type);
return (std::min)(fs, qreal(0xffff));
}
case XXSmall:
case XSmall:
case Small:
case Medium:
case Large:
case XLarge:
case XXLarge:
return sizeTable[spec];
}
Q_UNREACHABLE_RETURN(std::nullopt);
}
static std::optional<int> parseFontWeight(QStringView s)
{
// Value: normal | bold | bolder | lighter | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900
if (s.isEmpty() || s == tokens::inherit)
return std::nullopt;
if (s == tokens::normal)
return QFont::Normal;
if (s == tokens::bold)
return QFont::Bold;
if (s == tokens::bolder)
return QSvgFontStyle::BOLDER;
if (s == tokens::lighter)
return QSvgFontStyle::LIGHTER;
bool ok = false;
const int num = s.toInt(&ok);
if (ok)
return num;
return std::nullopt;
}
static std::optional<QFont::Capitalization> parseFontVariant(const QSvgAttributes &attributes)
{
// Value: normal |
// none |
// [
// <common-lig-values> ||
// <discretionary-lig-values> ||
// <historical-lig-values> ||
// <contextual-alt-values> ||
// [ small-caps | all-small-caps | petite-caps | all-petite-caps | unicase | titling-caps ] ||
// <numeric-figure-values> ||
// <numeric-spacing-values> ||
// <numeric-fraction-values> ||
// ordinal ||
// slashed-zero ||
// <east-asian-variant-values> ||
// <east-asian-width-values> ||
// ruby ||
// [ sub | super ]
// ]
// TODO: implement parsing of sub-properties, and values other than normal and small-caps
auto s = attributes.fontVariant;
if (s == tokens::normal)
return QFont::MixedCase;
if (s == tokens::small_caps)
return QFont::SmallCaps;
return std::nullopt; // incl. empty and tokens::inherit
}
static std::optional<Qt::Alignment> parseTextAnchor(QStringView s)
{
// text-anchor =
// start |
// middle |
// end
if (s == tokens::start)
return Qt::AlignLeft;
if (s == tokens::middle)
return Qt::AlignHCenter;
if (s == tokens::end)
return Qt::AlignRight;
return std::nullopt; // incl. empty and tokens::inherit
}
static void parseFont(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
auto parsedFontSize = parseFontSize(attributes.fontSize,
handler->options().testFlag(QtSvg::Tiny12FeaturesOnly));
auto parsedFontStyle = parseFontStyle(attributes.fontStyle);
auto parsedFontWeight = parseFontWeight(attributes.fontWeight);
auto parsedFontVariant = parseFontVariant(attributes);
auto parsedTextAnchor = parseTextAnchor(attributes.textAnchor);
if (attributes.fontFamily.isEmpty() && !parsedFontSize && !parsedFontStyle &&
!parsedFontWeight && !parsedFontVariant && !parsedTextAnchor)
return;
QSvgFontStylePtr fontStyle = std::make_unique<QSvgFontStyle>();
if (!attributes.fontFamily.isEmpty() && attributes.fontFamily != tokens::inherit) {
QStringView family = attributes.fontFamily.trimmed();
if (!family.isEmpty() && (family.at(0) == QLatin1Char('\'') || family.at(0) == QLatin1Char('\"')))
family = family.mid(1, family.size() - 2);
fontStyle->setFamily(family.toString());
}
if (parsedFontSize)
fontStyle->setSize(*parsedFontSize);
if (parsedFontStyle)
fontStyle->setStyle(*parsedFontStyle);
if (parsedFontWeight)
fontStyle->setWeight(*parsedFontWeight);
if (parsedFontVariant)
fontStyle->setVariant(*parsedFontVariant);
if (parsedTextAnchor)
fontStyle->setTextAnchor(*parsedTextAnchor);
node->appendStyleProperty(std::move(fontStyle));
}
static void parseTransform(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.transform.isEmpty())
return;
QTransform matrix = parseTransformationMatrix(attributes.transform.trimmed());
if (!matrix.isIdentity()) {
node->appendStyleProperty(std::make_unique<QSvgTransformStyle>(QTransform(matrix)));
}
}
static void parseVisibility(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
QSvgNode *parent = node->parent();
if (parent && (attributes.visibility.isEmpty() || attributes.visibility == tokens::inherit))
node->setVisible(parent->isVisible());
else if (attributes.visibility == QLatin1String("hidden") || attributes.visibility == QLatin1String("collapse")) {
node->setVisible(false);
} else
node->setVisible(true);
}
static bool parseStyle(QSvgNode *node,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler);
static int parseClockValue(QStringView str, bool *ok)
{
int res = 0;
int ms = 1000;
str = str.trimmed();
if (str.endsWith(QLatin1String("ms"))) {
str.chop(2);
ms = 1;
} else if (str.endsWith(QLatin1String("s"))) {
str.chop(1);
}
double val = ms * QGuiSvg::toDouble(str, ok);
if (ok) {
if (val > std::numeric_limits<int>::min() && val < std::numeric_limits<int>::max())
res = static_cast<int>(val);
else
*ok = false;
}
return res;
}
#ifndef QT_NO_CSSPARSER
static void parseCssAnimations(QSvgNode *node,
const QSvgCssProperties &properties,
QSvgHandler *handler)
{
QList<QSvgAnimationProperty> parsedProperties = properties.animations();
for (auto &property : parsedProperties) {
QSvgCssAnimation *anim = handler->cssHandler().createAnimation(property.name);
if (!anim)
continue;
anim->setRunningTime(property.delay, property.duration);
anim->setIterationCount(property.iteration);
QSvgCssEasingPtr easing = handler->cssHandler().createEasing(property.easingFunction, property.easingValues);
anim->setEasing(std::move(easing));
handler->setAnimPeriod(property.delay, property.delay + property.duration);
handler->document()->animator()->appendAnimation(node, anim);
handler->document()->setAnimated(true);
}
}
static void parseOffsetPath(QSvgNode *node,
const QSvgCssProperties &properties)
{
QSvgOffsetProperty offset = properties.offset();
if (!offset.path)
return;
QSvgOffsetStylePtr offsetStyle = std::make_unique<QSvgOffsetStyle>();
offsetStyle->setPath(offset.path.value());
offsetStyle->setRotateAngle(offset.angle);
offsetStyle->setRotateType(offset.rotateType);
offsetStyle->setDistance(offset.distance);
node->appendStyleProperty(std::move(offsetStyle));
}
#endif // QT_NO_CSSPARSER
QtSvg::Options QSvgHandler::options() const
{
return m_options;
}
QtSvg::AnimatorType QSvgHandler::animatorType() const
{
return m_animatorType;
}
bool QSvgHandler::trustedSourceMode() const
{
return m_options.testFlag(QtSvg::AssumeTrustedSource);
}
static inline QStringList stringToList(const QString &str)
{
QStringList lst = str.split(QLatin1Char(','), Qt::SkipEmptyParts);
return lst;
}
static bool parseCoreNode(QSvgNode *node,
const QXmlStreamAttributes &attributes)
{
QStringList features;
QStringList extensions;
QStringList languages;
QStringList formats;
QStringList fonts;
QStringView xmlClassStr;
for (const QXmlStreamAttribute &attribute : attributes) {
QStringView name = attribute.qualifiedName();
if (name.isEmpty())
continue;
QStringView value = attribute.value();
switch (name.at(0).unicode()) {
case 'c':
if (name == QLatin1String("class"))
xmlClassStr = value;
break;
case 'r':
if (name == QLatin1String("requiredFeatures"))
features = stringToList(value.toString());
else if (name == QLatin1String("requiredExtensions"))
extensions = stringToList(value.toString());
else if (name == QLatin1String("requiredFormats"))
formats = stringToList(value.toString());
else if (name == QLatin1String("requiredFonts"))
fonts = stringToList(value.toString());
break;
case 's':
if (name == QLatin1String("systemLanguage"))
languages = stringToList(value.toString());
break;
default:
break;
}
}
node->setRequiredFeatures(features);
node->setRequiredExtensions(extensions);
node->setRequiredLanguages(languages);
node->setRequiredFormats(formats);
node->setRequiredFonts(fonts);
node->setNodeId(someId(attributes));
node->setXmlClass(xmlClassStr.toString());
return true;
}
static void parseOpacity(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.opacity.isEmpty())
return;
const QStringView value = attributes.opacity.trimmed();
bool ok = false;
qreal op = value.toDouble(&ok);
if (ok) {
QSvgOpacityStylePtr opacity = std::make_unique<QSvgOpacityStyle>(qBound(qreal(0.0), op, qreal(1.0)));
node->appendStyleProperty(std::move(opacity));
}
}
static QPainter::CompositionMode svgToQtCompositionMode(const QStringView op)
{
if (op == tokens::compOp::clear)
return QPainter::CompositionMode_Clear;
else if (op == tokens::compOp::src)
return QPainter::CompositionMode_Source;
else if (op == tokens::compOp::dst)
return QPainter::CompositionMode_Destination;
else if (op == tokens::compOp::srcOver)
return QPainter::CompositionMode_SourceOver;
else if (op == tokens::compOp::dstOver)
return QPainter::CompositionMode_DestinationOver;
else if (op == tokens::compOp::srcIn)
return QPainter::CompositionMode_SourceIn;
else if (op == tokens::compOp::dstIn)
return QPainter::CompositionMode_DestinationIn;
else if (op == tokens::compOp::srcOut)
return QPainter::CompositionMode_SourceOut;
else if (op == tokens::compOp::dstOut)
return QPainter::CompositionMode_DestinationOut;
else if (op == tokens::compOp::srcAtop)
return QPainter::CompositionMode_SourceAtop;
else if (op == tokens::compOp::dstAtop)
return QPainter::CompositionMode_DestinationAtop;
else if (op == tokens::compOp::xorOp)
return QPainter::CompositionMode_Xor;
else if (op == tokens::compOp::plus)
return QPainter::CompositionMode_Plus;
else if (op == tokens::compOp::multiply)
return QPainter::CompositionMode_Multiply;
else if (op == tokens::compOp::screen)
return QPainter::CompositionMode_Screen;
else if (op == tokens::compOp::overlay)
return QPainter::CompositionMode_Overlay;
else if (op == tokens::compOp::darken)
return QPainter::CompositionMode_Darken;
else if (op == tokens::compOp::lighten)
return QPainter::CompositionMode_Lighten;
else if (op == tokens::compOp::colorDodge)
return QPainter::CompositionMode_ColorDodge;
else if (op == tokens::compOp::colorBurn)
return QPainter::CompositionMode_ColorBurn;
else if (op == tokens::compOp::hardLight)
return QPainter::CompositionMode_HardLight;
else if (op == tokens::compOp::softLight)
return QPainter::CompositionMode_SoftLight;
else if (op == tokens::compOp::difference)
return QPainter::CompositionMode_Difference;
else if (op == tokens::compOp::exclusion)
return QPainter::CompositionMode_Exclusion;
qCWarning(lcSvgHandler) << "Composition mode not supported : "_L1 << op;
return QPainter::CompositionMode_SourceOver;
}
static void parseCompOp(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.compOp.isEmpty())
return;
QStringView value = attributes.compOp.trimmed();
if (!value.isEmpty()) {
QSvgCompOpStylePtr compop = std::make_unique<QSvgCompOpStyle>(svgToQtCompositionMode(value));
node->appendStyleProperty(std::move(compop));
}
}
static QSvgNode::DisplayMode displayStringToEnum(const QStringView str)
{
if (str == QLatin1String("inline")) {
return QSvgNode::InlineMode;
} else if (str == QLatin1String("block")) {
return QSvgNode::BlockMode;
} else if (str == QLatin1String("list-item")) {
return QSvgNode::ListItemMode;
} else if (str == QLatin1String("run-in")) {
return QSvgNode::RunInMode;
} else if (str == QLatin1String("compact")) {
return QSvgNode::CompactMode;
} else if (str == QLatin1String("marker")) {
return QSvgNode::MarkerMode;
} else if (str == QLatin1String("table")) {
return QSvgNode::TableMode;
} else if (str == QLatin1String("inline-table")) {
return QSvgNode::InlineTableMode;
} else if (str == QLatin1String("table-row-group")) {
return QSvgNode::TableRowGroupMode;
} else if (str == QLatin1String("table-header-group")) {
return QSvgNode::TableHeaderGroupMode;
} else if (str == QLatin1String("table-footer-group")) {
return QSvgNode::TableFooterGroupMode;
} else if (str == QLatin1String("table-row")) {
return QSvgNode::TableRowMode;
} else if (str == QLatin1String("table-column-group")) {
return QSvgNode::TableColumnGroupMode;
} else if (str == QLatin1String("table-column")) {
return QSvgNode::TableColumnMode;
} else if (str == QLatin1String("table-cell")) {
return QSvgNode::TableCellMode;
} else if (str == QLatin1String("table-caption")) {
return QSvgNode::TableCaptionMode;
} else if (str == QLatin1String("none")) {
return QSvgNode::NoneMode;
} else if (str == tokens::inherit) {
return QSvgNode::InheritMode;
}
return QSvgNode::BlockMode;
}
static void parseOthers(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.display.isEmpty())
return;
QStringView displayStr = attributes.display.trimmed();
if (!displayStr.isEmpty()) {
node->setDisplayMode(displayStringToEnum(displayStr));
}
}
static std::optional<QStringView> getAttributeId(const QStringView &attribute)
{
if (attribute.isEmpty())
return std::nullopt;
return idFromFuncIRI(attribute);
}
static void parseExtendedAttributes(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *handler)
{
if (handler->options().testFlag(QtSvg::Tiny12FeaturesOnly))
return;
if (auto id = getAttributeId(attributes.mask))
node->setMaskId(id->toString());
if (auto id = getAttributeId(attributes.markerStart))
node->setMarkerStartId(id->toString());
if (auto id = getAttributeId(attributes.markerMid))
node->setMarkerMidId(id->toString());
if (auto id = getAttributeId(attributes.markerEnd))
node->setMarkerEndId(id->toString());
if (auto id = getAttributeId(attributes.filter))
node->setFilterId(id->toString());
}
static void parseRenderingHints(QSvgNode *node,
const QSvgAttributes &attributes,
QSvgHandler *)
{
if (attributes.imageRendering.isEmpty())
return;
QStringView ir = attributes.imageRendering.trimmed();
QSvgQualityStylePtr quality = std::make_unique<QSvgQualityStyle>(0);
if (ir == QLatin1String("auto"))
quality->setImageRendering(QSvgQualityStyle::ImageRenderingAuto);
else if (ir == QLatin1String("optimizeSpeed"))
quality->setImageRendering(QSvgQualityStyle::ImageRenderingOptimizeSpeed);
else if (ir == QLatin1String("optimizeQuality"))
quality->setImageRendering(QSvgQualityStyle::ImageRenderingOptimizeQuality);
node->appendStyleProperty(std::move(quality));
}
static bool parseStyle(QSvgNode *node,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
// Get style in the following order :
// 1) values from svg attributes
// 2) CSS style
// 3) values defined in the svg "style" property
QSvgAttributes svgAttributes(attributes, handler);
#ifndef QT_NO_CSSPARSER
QXmlStreamAttributes cssAttributes;
handler->cssHandler().styleLookup(node, cssAttributes);
QStringView style = attributes.value(QLatin1String("style"));
if (!style.isEmpty())
handler->cssHandler().parseCSStoXMLAttrs(style.toString(), cssAttributes);
svgAttributes.setAttributes(cssAttributes, handler);
QSvgCssProperties cssProperties(cssAttributes);
parseOffsetPath(node, cssProperties);
if (!handler->options().testFlag(QtSvg::DisableCSSAnimations))
parseCssAnimations(node, cssProperties, handler);
#endif
parseColor(node, svgAttributes, handler);
parseBrush(node, svgAttributes, handler);
parsePen(node, svgAttributes, handler);
parseFont(node, svgAttributes, handler);
parseTransform(node, svgAttributes, handler);
parseVisibility(node, svgAttributes, handler);
parseOpacity(node, svgAttributes, handler);
parseCompOp(node, svgAttributes, handler);
parseRenderingHints(node, svgAttributes, handler);
parseOthers(node, svgAttributes, handler);
parseExtendedAttributes(node, svgAttributes, handler);
return true;
}
static bool parseAnchorNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseBaseAnimate(QSvgNode *,
const QXmlStreamAttributes &attributes,
QSvgAnimateNode *anim,
QSvgHandler *handler)
{
const QStringView beginStr = attributes.value(QLatin1String("begin"));
const QStringView durStr = attributes.value(QLatin1String("dur"));
const QStringView endStr = attributes.value(QLatin1String("end"));
const QStringView repeatStr = attributes.value(QLatin1String("repeatCount"));
const QStringView fillStr = attributes.value(QLatin1String("fill"));
const QStringView addtv = attributes.value(QLatin1String("additive"));
QStringView linkId = attributes.value(QLatin1String("xlink:href"));
if (linkId.isEmpty())
linkId = attributes.value(QLatin1String("href"));
linkId = idFromIRI(linkId);
bool ok = true;
int begin = parseClockValue(beginStr, &ok);
if (!ok)
return false;
int dur = parseClockValue(durStr, &ok);
if (!ok)
return false;
int end = parseClockValue(endStr, &ok);
if (!ok)
return false;
qreal repeatCount = (repeatStr == QLatin1String("indefinite")) ? -1 :
qMax(1.0, QGuiSvg::toDouble(repeatStr));
QSvgAnimateNode::Fill fill = (fillStr == QLatin1String("freeze")) ? QSvgAnimateNode::Freeze :
QSvgAnimateNode::Remove;
QSvgAnimateNode::Additive additive = (addtv == QLatin1String("sum")) ? QSvgAnimateNode::Sum :
QSvgAnimateNode::Replace;
anim->setRunningTime(begin, dur, end, 0);
anim->setRepeatCount(repeatCount);
anim->setFill(fill);
anim->setAdditiveType(additive);
anim->setLinkId(linkId.toString());
handler->document()->setAnimated(true);
handler->setAnimPeriod(begin, begin + dur);
return true;
}
static void generateKeyFrames(QList<qreal> &keyFrames, uint count)
{
if (count < 2)
return;
qreal spacing = 1.0f / (count - 1);
for (uint i = 0; i < count; i++) {
keyFrames.append(i * spacing);
}
}
static QSvgNode *createAnimateColorNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
const QStringView fromStr = attributes.value(QLatin1String("from"));
const QStringView toStr = attributes.value(QLatin1String("to"));
const QStringView valuesStr = attributes.value(QLatin1String("values"));
const QString targetStr = attributes.value(QLatin1String("attributeName")).toString();
if (targetStr != QLatin1String("fill") && targetStr != QLatin1String("stroke"))
return nullptr;
QList<QColor> colors;
if (valuesStr.isEmpty()) {
QColor startColor, endColor;
resolveColor(fromStr, startColor, handler);
resolveColor(toStr, endColor, handler);
colors.reserve(2);
colors.append(startColor);
colors.append(endColor);
} else {
for (auto part : qTokenize(valuesStr, u';')) {
QColor color;
resolveColor(part, color, handler);
colors.append(color);
}
}
QSvgAnimatedPropertyColor *prop = static_cast<QSvgAnimatedPropertyColor *>
(QSvgAbstractAnimatedProperty::createAnimatedProperty(targetStr));
if (!prop)
return nullptr;
prop->setColors(colors);
QList<qreal> keyFrames;
generateKeyFrames(keyFrames, colors.size());
prop->setKeyFrames(keyFrames);
QSvgAnimateColor *anim = new QSvgAnimateColor(parent);
anim->appendProperty(prop);
if (!parseBaseAnimate(parent, attributes, anim, handler)) {
delete anim;
return nullptr;
}
return anim;
}
static QSvgNode *createAnimateMotionNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return nullptr;
}
static void parseNumberTriplet(QList<qreal> &values, QStringView *s)
{
QList<qreal> list = parseNumbersList(s);
values << list;
for (int i = 3 - list.size(); i > 0; --i)
values.append(0.0);
}
static void parseNumberTriplet(QList<qreal> &values, QStringView s)
{
parseNumberTriplet(values, &s);
}
QSvgNode *createAnimateTransformNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
const QStringView typeStr = attributes.value(QLatin1String("type"));
const QStringView values = attributes.value(QLatin1String("values"));
const QStringView fromStr = attributes.value(QLatin1String("from"));
const QStringView toStr = attributes.value(QLatin1String("to"));
const QStringView byStr = attributes.value(QLatin1String("by"));
QList<qreal> vals;
if (values.isEmpty()) {
if (fromStr.isEmpty()) {
if (!byStr.isEmpty()) {
vals.append(0.0);
vals.append(0.0);
vals.append(0.0);
parseNumberTriplet(vals, byStr);
} else {
// To-animation not defined.
return nullptr;
}
} else {
if (!toStr.isEmpty()) {
// From-to-animation.
parseNumberTriplet(vals, fromStr);
parseNumberTriplet(vals, toStr);
} else if (!byStr.isEmpty()) {
// From-by-animation.
parseNumberTriplet(vals, fromStr);
parseNumberTriplet(vals, byStr);
for (int i = vals.size() - 3; i < vals.size(); ++i)
vals[i] += vals[i - 3];
} else {
return nullptr;
}
}
} else {
QStringView s = values;
while (!s.isEmpty()) {
parseNumberTriplet(vals, &s);
if (!s.isEmpty())
s.slice(1);
}
}
if (vals.size() % 3 != 0)
return nullptr;
QList<QSvgAnimatedPropertyTransform::TransformComponent> components;
for (int i = 0; i <= vals.size() - 3; i += 3) {
QSvgAnimatedPropertyTransform::TransformComponent component;
if (typeStr == QLatin1String("translate")) {
component.type = QSvgAnimatedPropertyTransform::TransformComponent::Translate;
component.values.append(vals.at(i));
component.values.append(vals.at(i + 1));
} else if (typeStr == QLatin1String("scale")) {
component.type = QSvgAnimatedPropertyTransform::TransformComponent::Scale;
component.values.append(vals.at(i));
component.values.append(vals.at(i + 1));
} else if (typeStr == QLatin1String("rotate")) {
component.type = QSvgAnimatedPropertyTransform::TransformComponent::Rotate;
component.values.append(vals.at(i));
component.values.append(vals.at(i + 1));
component.values.append(vals.at(i + 2));
} else if (typeStr == QLatin1String("skewX")) {
component.type = QSvgAnimatedPropertyTransform::TransformComponent::Skew;
component.values.append(vals.at(i));
component.values.append(0);
} else if (typeStr == QLatin1String("skewY")) {
component.type = QSvgAnimatedPropertyTransform::TransformComponent::Skew;
component.values.append(0);
component.values.append(vals.at(i));
} else {
return nullptr;
}
components.append(component);
}
QSvgAnimatedPropertyTransform *prop = static_cast<QSvgAnimatedPropertyTransform *>
(QSvgAbstractAnimatedProperty::createAnimatedProperty(QLatin1String("transform")));
if (!prop)
return nullptr;
prop->appendComponents(components);
// <animateTransform> always has one component per key frame
prop->setTransformCount(1);
QList<qreal> keyFrames;
generateKeyFrames(keyFrames, vals.size() / 3);
prop->setKeyFrames(keyFrames);
QSvgAnimateTransform *anim = new QSvgAnimateTransform(parent);
anim->appendProperty(prop);
if (!parseBaseAnimate(parent, attributes, anim, handler)) {
delete anim;
return nullptr;
}
return anim;
}
static QSvgNode *createAnimateNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return nullptr;
}
static bool parseAudioNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createCircleNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView cx = attributes.value(QLatin1String("cx"));
const QStringView cy = attributes.value(QLatin1String("cy"));
const QStringView r = attributes.value(QLatin1String("r"));
qreal ncx = QGuiSvg::toDouble(cx);
qreal ncy = QGuiSvg::toDouble(cy);
qreal nr = QGuiSvg::toDouble(r);
if (nr < 0.0)
return nullptr;
QRectF rect(ncx-nr, ncy-nr, nr*2, nr*2);
QSvgNode *circle = new QSvgCircle(parent, rect);
return circle;
}
static QSvgNode *createDefsNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(attributes);
QSvgDefs *defs = new QSvgDefs(parent);
return defs;
}
static bool parseDiscardNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createEllipseNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView cx = attributes.value(QLatin1String("cx"));
const QStringView cy = attributes.value(QLatin1String("cy"));
const QStringView rx = attributes.value(QLatin1String("rx"));
const QStringView ry = attributes.value(QLatin1String("ry"));
qreal ncx = QGuiSvg::toDouble(cx);
qreal ncy = QGuiSvg::toDouble(cy);
qreal nrx = QGuiSvg::toDouble(rx);
qreal nry = QGuiSvg::toDouble(ry);
QRectF rect(ncx-nrx, ncy-nry, nrx*2, nry*2);
QSvgNode *ellipse = new QSvgEllipse(parent, rect);
return ellipse;
}
static QSvgFontPtr createFontNode(const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView hax = attributes.value(QLatin1String("horiz-adv-x"));
qreal horizAdvX = QGuiSvg::toDouble(hax);
return std::make_unique<QSvgFont>(horizAdvX);
}
static bool parseFontFaceNode(QSvgFont *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
const QStringView name = attributes.value(QLatin1String("font-family"));
if (name.isEmpty())
return false;
const QStringView unitsPerEmStr = attributes.value(QLatin1String("units-per-em"));
/*TODO: Fix toDouble and use the ok flag for testing instead because 0 is a valid
* value for unitsPerEm. "units-per-em: <number>" as per definition
*/
bool ok = false;
qreal unitsPerEm = QGuiSvg::toDouble(unitsPerEmStr, &ok);
if (!qFuzzyIsNull(unitsPerEm))
parent->setUnitsPerEm(unitsPerEm);
handler->setCurrentSvgFontFamily(name);
return true;
}
static bool parseFontFaceNameNode(QSvgFont *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseFontFaceSrcNode(QSvgFont *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseFontFaceUriNode(QSvgFont *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseGlyphNode(QSvgFont *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
return createSvgGlyph(parent, attributes, false);
}
static bool parseMissingGlyphNode(QSvgFont *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
return createSvgGlyph(parent, attributes, true);
}
static bool parseForeignObjectNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createGNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(attributes);
QSvgG *node = new QSvgG(parent);
return node;
}
static bool parseHandlerNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseHkernNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgNode *createImageNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
const QStringView x = attributes.value(QLatin1String("x"));
const QStringView y = attributes.value(QLatin1String("y"));
const QStringView width = attributes.value(QLatin1String("width"));
const QStringView height = attributes.value(QLatin1String("height"));
QString filename = attributes.value(QLatin1String("xlink:href")).toString();
if (filename.isEmpty() && !handler->options().testFlag(QtSvg::Tiny12FeaturesOnly))
filename = attributes.value(QLatin1String("href")).toString();
qreal nx = QGuiSvg::toDouble(x);
qreal ny = QGuiSvg::toDouble(y);
QGuiSvg::LengthType type;
qreal nwidth = QGuiSvg::parseLength(width.toString(), &type);
nwidth = QGuiSvg::convertToPixels(nwidth, true, type);
qreal nheight = QGuiSvg::parseLength(height.toString(), &type);
nheight = QGuiSvg::convertToPixels(nheight, false, type);
filename = filename.trimmed();
if (filename.isEmpty()) {
qCWarning(lcSvgHandler) << "QSvgHandler: Image filename is empty";
return 0;
}
if (nwidth <= 0 || nheight <= 0) {
qCWarning(lcSvgHandler) << "QSvgHandler: Width or height for" << filename << "image was not greater than 0";
return 0;
}
QImage image;
enum {
NotLoaded,
LoadedFromData,
LoadedFromFile
} filenameType = NotLoaded;
if (filename.startsWith(QLatin1String("data"))) {
QString mimeType;
QByteArray data;
if (qDecodeDataUrl(QUrl{filename}, mimeType, data)) {
image = QImage::fromData(data);
filenameType = LoadedFromData;
}
}
if (image.isNull()) {
const auto *file = qobject_cast<QFile *>(handler->device());
if (file) {
QUrl url(filename);
if (url.isRelative()) {
QFileInfo info(file->fileName());
filename = info.absoluteDir().absoluteFilePath(filename);
}
}
if (handler->trustedSourceMode() || !QImageReader::imageFormat(filename).startsWith("svg")) {
image = QImage(filename);
filenameType = LoadedFromFile;
}
}
if (image.isNull()) {
qCWarning(lcSvgHandler) << "Could not create image from" << filename;
return 0;
}
if (image.format() == QImage::Format_ARGB32)
image = image.convertToFormat(QImage::Format_ARGB32_Premultiplied);
if (filenameType != LoadedFromFile)
filename = QString();
QSvgNode *img = new QSvgImage(parent,
image,
filename,
QRectF(nx,
ny,
nwidth,
nheight));
return img;
}
static QSvgNode *createLineNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView x1 = attributes.value(QLatin1String("x1"));
const QStringView y1 = attributes.value(QLatin1String("y1"));
const QStringView x2 = attributes.value(QLatin1String("x2"));
const QStringView y2 = attributes.value(QLatin1String("y2"));
qreal nx1 = QGuiSvg::toDouble(x1);
qreal ny1 = QGuiSvg::toDouble(y1);
qreal nx2 = QGuiSvg::toDouble(x2);
qreal ny2 = QGuiSvg::toDouble(y2);
QLineF lineBounds(nx1, ny1, nx2, ny2);
QSvgNode *line = new QSvgLine(parent, lineBounds);
return line;
}
static void parseBaseGradient(const QXmlStreamAttributes &attributes,
QSvgGradientPaint *gradProp,
QSvgHandler *handler)
{
QStringView linkId = attributes.value(QLatin1String("xlink:href"));
const QStringView trans = attributes.value(QLatin1String("gradientTransform"));
const QStringView spread = attributes.value(QLatin1String("spreadMethod"));
const QStringView units = attributes.value(QLatin1String("gradientUnits"));
const QStringView colorStr = attributes.value(QLatin1String("color"));
const QStringView colorOpacityStr = attributes.value(QLatin1String("color-opacity"));
QColor color;
if (constructColor(colorStr, colorOpacityStr, color, handler)) {
handler->popColor();
handler->pushColor(color);
}
QTransform matrix;
QGradient *grad = gradProp->qgradient();
linkId = idFromIRI(linkId);
if (!linkId.isEmpty()) {
QSvgPaintServerSharedPtr paintServer = handler->document()->paintServer(linkId);
if (paintServer && paintServer->type() == QSvgPaintServer::Type::Gradient) {
QSvgGradientPaint *inherited =
static_cast<QSvgGradientPaint*>(paintServer.get());
if (!inherited->stopLink().isEmpty()) {
gradProp->setStopLink(inherited->stopLink(), handler->document());
} else {
grad->setStops(inherited->qgradient()->stops());
gradProp->setGradientStopsSet(inherited->gradientStopsSet());
}
matrix = inherited->qtransform();
} else {
gradProp->setStopLink(linkId.toString(), handler->document());
}
}
if (!trans.isEmpty()) {
matrix = parseTransformationMatrix(trans);
gradProp->setTransform(matrix);
} else if (!matrix.isIdentity()) {
gradProp->setTransform(matrix);
}
if (!spread.isEmpty()) {
if (spread == QLatin1String("pad")) {
grad->setSpread(QGradient::PadSpread);
} else if (spread == QLatin1String("reflect")) {
grad->setSpread(QGradient::ReflectSpread);
} else if (spread == QLatin1String("repeat")) {
grad->setSpread(QGradient::RepeatSpread);
}
}
if (units.isEmpty() || units == QLatin1String("objectBoundingBox")) {
grad->setCoordinateMode(QGradient::ObjectMode);
}
}
static QSvgPaintServerSharedPtr createLinearGradientNode(const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
const QStringView x1 = attributes.value(QLatin1String("x1"));
const QStringView y1 = attributes.value(QLatin1String("y1"));
const QStringView x2 = attributes.value(QLatin1String("x2"));
const QStringView y2 = attributes.value(QLatin1String("y2"));
qreal nx1 = 0.0;
qreal ny1 = 0.0;
qreal nx2 = 1.0;
qreal ny2 = 0.0;
const bool tiny12FeaturesOnly = handler->options().testFlag(QtSvg::Tiny12FeaturesOnly);
if (!x1.isEmpty())
nx1 = convertToNumber(x1, tiny12FeaturesOnly);
if (!y1.isEmpty())
ny1 = convertToNumber(y1, tiny12FeaturesOnly);
if (!x2.isEmpty())
nx2 = convertToNumber(x2, tiny12FeaturesOnly);
if (!y2.isEmpty())
ny2 = convertToNumber(y2, tiny12FeaturesOnly);
auto grad = std::make_unique<QLinearGradient>(nx1, ny1, nx2, ny2);
grad->setInterpolationMode(QGradient::ComponentInterpolation);
QSvgGradientPaintSharedPtr paintServer = std::make_shared<QSvgGradientPaint>(std::move(grad));
parseBaseGradient(attributes, paintServer.get(), handler);
return paintServer;
}
static bool parseMetadataNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseMpathNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseMaskNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseMarkerNode(QSvgNode *,
const QXmlStreamAttributes &,
QSvgHandler *)
{
return true;
}
static QSvgNode *createMaskNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
constexpr bool tiny12FeaturesOnly = false;
const QStringView x = attributes.value(QLatin1String("x"));
const QStringView y = attributes.value(QLatin1String("y"));
const QStringView width = attributes.value(QLatin1String("width"));
const QStringView height = attributes.value(QLatin1String("height"));
const QStringView mU = attributes.value(QLatin1String("maskUnits"));
const QStringView mCU = attributes.value(QLatin1String("maskContentUnits"));
QtSvg::UnitTypes nmU = mU.contains(QLatin1String("userSpaceOnUse")) ?
QtSvg::UnitTypes::userSpaceOnUse : QtSvg::UnitTypes::objectBoundingBox;
QtSvg::UnitTypes nmCU = mCU.contains(QLatin1String("objectBoundingBox")) ?
QtSvg::UnitTypes::objectBoundingBox : QtSvg::UnitTypes::userSpaceOnUse;
bool ok;
QGuiSvg::LengthType type;
QtSvg::UnitTypes nmUx = nmU;
QtSvg::UnitTypes nmUy = nmU;
QtSvg::UnitTypes nmUw = nmU;
QtSvg::UnitTypes nmUh = nmU;
qreal nx = QGuiSvg::parseLength(x, &type, &ok, tiny12FeaturesOnly);
nx = QGuiSvg::convertToPixels(nx, true, type);
if (x.isEmpty() || !ok) {
nx = -0.1;
nmUx = QtSvg::UnitTypes::objectBoundingBox;
} else if (type == QGuiSvg::LengthType::LT_PERCENT && nmU == QtSvg::UnitTypes::userSpaceOnUse) {
nx = nx / 100. * handler->document()->viewBox().width();
} else if (type == QGuiSvg::LengthType::LT_PERCENT) {
nx = nx / 100.;
}
qreal ny = QGuiSvg::parseLength(y, &type, &ok, tiny12FeaturesOnly);
ny = QGuiSvg::convertToPixels(ny, true, type);
if (y.isEmpty() || !ok) {
ny = -0.1;
nmUy = QtSvg::UnitTypes::objectBoundingBox;
} else if (type == QGuiSvg::LengthType::LT_PERCENT && nmU == QtSvg::UnitTypes::userSpaceOnUse) {
ny = ny / 100. * handler->document()->viewBox().height();
} else if (type == QGuiSvg::LengthType::LT_PERCENT) {
ny = ny / 100.;
}
qreal nwidth = QGuiSvg::parseLength(width, &type, &ok, tiny12FeaturesOnly);
nwidth = QGuiSvg::convertToPixels(nwidth, true, type);
if (width.isEmpty() || !ok) {
nwidth = 1.2;
nmUw = QtSvg::UnitTypes::objectBoundingBox;
} else if (type == QGuiSvg::LengthType::LT_PERCENT && nmU == QtSvg::UnitTypes::userSpaceOnUse) {
nwidth = nwidth / 100. * handler->document()->viewBox().width();
} else if (type == QGuiSvg::LengthType::LT_PERCENT) {
nwidth = nwidth / 100.;
}
qreal nheight = QGuiSvg::parseLength(height, &type, &ok, tiny12FeaturesOnly);
nheight = QGuiSvg::convertToPixels(nheight, true, type);
if (height.isEmpty() || !ok) {
nheight = 1.2;
nmUh = QtSvg::UnitTypes::objectBoundingBox;
} else if (type == QGuiSvg::LengthType::LT_PERCENT && nmU == QtSvg::UnitTypes::userSpaceOnUse) {
nheight = nheight / 100. * handler->document()->viewBox().height();
} else if (type == QGuiSvg::LengthType::LT_PERCENT) {
nheight = nheight / 100.;
}
QRectF bounds(nx, ny, nwidth, nheight);
if (bounds.isEmpty())
return nullptr;
QSvgNode *mask = new QSvgMask(parent, QSvgRectF(bounds, nmUx, nmUy, nmUw, nmUh), nmCU);
return mask;
}
static void parseFilterBounds(const QXmlStreamAttributes &attributes, QSvgRectF *rect)
{
const QStringView xStr = attributes.value(QLatin1String("x"));
const QStringView yStr = attributes.value(QLatin1String("y"));
const QStringView widthStr = attributes.value(QLatin1String("width"));
const QStringView heightStr = attributes.value(QLatin1String("height"));
qreal x = 0;
if (!xStr.isEmpty()) {
QGuiSvg::LengthType type;
x = QGuiSvg::parseLength(xStr, &type);
if (type != QGuiSvg::LengthType::LT_PT) {
x = QGuiSvg::convertToPixels(x, true, type);
rect->setUnitX(QtSvg::UnitTypes::userSpaceOnUse);
}
if (type == QGuiSvg::LengthType::LT_PERCENT) {
x /= 100.;
rect->setUnitX(QtSvg::UnitTypes::objectBoundingBox);
}
rect->setX(x);
}
qreal y = 0;
if (!yStr.isEmpty()) {
QGuiSvg::LengthType type;
y = QGuiSvg::parseLength(yStr, &type);
if (type != QGuiSvg::LengthType::LT_PT) {
y = QGuiSvg::convertToPixels(y, false, type);
rect->setUnitY(QtSvg::UnitTypes::userSpaceOnUse);
}
if (type == QGuiSvg::LengthType::LT_PERCENT) {
y /= 100.;
rect->setUnitX(QtSvg::UnitTypes::objectBoundingBox);
}
rect->setY(y);
}
qreal width = 0;
if (!widthStr.isEmpty()) {
QGuiSvg::LengthType type;
width = QGuiSvg::parseLength(widthStr, &type);
if (type != QGuiSvg::LengthType::LT_PT) {
width = QGuiSvg::convertToPixels(width, true, type);
rect->setUnitW(QtSvg::UnitTypes::userSpaceOnUse);
}
if (type == QGuiSvg::LengthType::LT_PERCENT) {
width /= 100.;
rect->setUnitX(QtSvg::UnitTypes::objectBoundingBox);
}
rect->setWidth(width);
}
qreal height = 0;
if (!heightStr.isEmpty()) {
QGuiSvg::LengthType type;
height = QGuiSvg::parseLength(heightStr, &type);
if (type != QGuiSvg::LengthType::LT_PT) {
height = QGuiSvg::convertToPixels(height, false, type);
rect->setUnitH(QtSvg::UnitTypes::userSpaceOnUse);
}
if (type == QGuiSvg::LengthType::LT_PERCENT) {
height /= 100.;
rect->setUnitX(QtSvg::UnitTypes::objectBoundingBox);
}
rect->setHeight(height);
}
}
static QSvgNode *createFilterNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
const QStringView fU = attributes.value(QLatin1String("filterUnits"));
const QStringView pU = attributes.value(QLatin1String("primitiveUnits"));
const QtSvg::UnitTypes filterUnits = fU.contains(QLatin1String("userSpaceOnUse")) ?
QtSvg::UnitTypes::userSpaceOnUse : QtSvg::UnitTypes::objectBoundingBox;
const QtSvg::UnitTypes primitiveUnits = pU.contains(QLatin1String("objectBoundingBox")) ?
QtSvg::UnitTypes::objectBoundingBox : QtSvg::UnitTypes::userSpaceOnUse;
// If ‘x’ or ‘y’ is not specified, the effect is as if a value of -10% were specified.
// If ‘width’ or ‘height’ is not specified, the effect is as if a value of 120% were specified.
QSvgRectF rect;
if (filterUnits == QtSvg::UnitTypes::userSpaceOnUse) {
qreal width = handler->document()->viewBox().width();
qreal height = handler->document()->viewBox().height();
rect = QSvgRectF(QRectF(-0.1 * width, -0.1 * height, 1.2 * width, 1.2 * height),
QtSvg::UnitTypes::userSpaceOnUse, QtSvg::UnitTypes::userSpaceOnUse,
QtSvg::UnitTypes::userSpaceOnUse, QtSvg::UnitTypes::userSpaceOnUse);
} else {
rect = QSvgRectF(QRectF(-0.1, -0.1, 1.2, 1.2),
QtSvg::UnitTypes::objectBoundingBox, QtSvg::UnitTypes::objectBoundingBox,
QtSvg::UnitTypes::objectBoundingBox, QtSvg::UnitTypes::objectBoundingBox);
}
parseFilterBounds(attributes, &rect);
QSvgNode *filter = new QSvgFilterContainer(parent, rect, filterUnits, primitiveUnits);
return filter;
}
static void parseFilterAttributes(const QXmlStreamAttributes &attributes, QString *inString,
QString *outString, QSvgRectF *rect)
{
*inString = attributes.value(QLatin1String("in")).toString();
*outString = attributes.value(QLatin1String("result")).toString();
// the default subregion is 0%,0%,100%,100%, where as a special-case the percentages are
// relative to the dimensions of the filter region, thus making the the default filter primitive
// subregion equal to the filter region.
*rect = QSvgRectF(QRectF(0, 0, 1.0, 1.0),
QtSvg::UnitTypes::unknown, QtSvg::UnitTypes::unknown,
QtSvg::UnitTypes::unknown, QtSvg::UnitTypes::unknown);
// if we recognize unit == unknown we use the filter as a reference instead of the item, see
// QSvgFeFilterPrimitive::localSubRegion
parseFilterBounds(attributes, rect);
}
static QSvgNode *createFeColorMatrixNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView typeString = attributes.value(QLatin1String("type"));
const QStringView valuesString = attributes.value(QLatin1String("values"));
QString inputString;
QString outputString;
QSvgRectF rect;
QSvgFeColorMatrix::ColorShiftType type;
QSvgFeColorMatrix::Matrix values;
values.fill(0);
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
if (typeString.startsWith(QLatin1String("saturate")))
type = QSvgFeColorMatrix::ColorShiftType::Saturate;
else if (typeString.startsWith(QLatin1String("hueRotate")))
type = QSvgFeColorMatrix::ColorShiftType::HueRotate;
else if (typeString.startsWith(QLatin1String("luminanceToAlpha")))
type = QSvgFeColorMatrix::ColorShiftType::LuminanceToAlpha;
else
type = QSvgFeColorMatrix::ColorShiftType::Matrix;
if (!valuesString.isEmpty()) {
const auto valueStringList = splitWithDelimiter(valuesString);
for (int i = 0, j = 0; i < qMin(20, valueStringList.size()); i++) {
bool ok;
qreal v = QGuiSvg::toDouble(valueStringList.at(i), &ok);
if (ok) {
values.data()[j] = v;
j++;
}
}
} else {
values.setToIdentity();
}
QSvgNode *filter = new QSvgFeColorMatrix(parent, inputString, outputString, rect,
type, values);
return filter;
}
static QSvgNode *createFeGaussianBlurNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView edgeModeString = attributes.value(QLatin1String("edgeMode"));
const QStringView stdDeviationString = attributes.value(QLatin1String("stdDeviation"));
QString inputString;
QString outputString;
QSvgRectF rect;
QSvgFeGaussianBlur::EdgeMode edgemode = QSvgFeGaussianBlur::EdgeMode::Duplicate;
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
qreal stdDeviationX = 0;
qreal stdDeviationY = 0;
if (stdDeviationString.contains(QStringLiteral(" "))){
stdDeviationX = qMax(0., QGuiSvg::toDouble(stdDeviationString.split(u" ").constFirst()));
stdDeviationY = qMax(0., QGuiSvg::toDouble(stdDeviationString.split(u" ").constLast()));
} else {
stdDeviationY = stdDeviationX = qMax(0., QGuiSvg::toDouble(stdDeviationString));
}
if (edgeModeString.startsWith(QLatin1String("wrap")))
edgemode = QSvgFeGaussianBlur::EdgeMode::Wrap;
else if (edgeModeString.startsWith(QLatin1String("none")))
edgemode = QSvgFeGaussianBlur::EdgeMode::None;
QSvgNode *filter = new QSvgFeGaussianBlur(parent, inputString, outputString, rect,
stdDeviationX, stdDeviationY, edgemode);
return filter;
}
static QSvgNode *createFeOffsetNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QStringView dxString = attributes.value(QLatin1String("dx"));
QStringView dyString = attributes.value(QLatin1String("dy"));
QString inputString;
QString outputString;
QSvgRectF rect;
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
qreal dx = 0;
if (!dxString.isEmpty()) {
QGuiSvg::LengthType type;
dx = QGuiSvg::parseLength(dxString, &type);
if (type != QGuiSvg::LengthType::LT_PT)
dx = QGuiSvg::convertToPixels(dx, true, type);
}
qreal dy = 0;
if (!dyString.isEmpty()) {
QGuiSvg::LengthType type;
dy = QGuiSvg::parseLength(dyString, &type);
if (type != QGuiSvg::LengthType::LT_PT)
dy = QGuiSvg::convertToPixels(dy, true, type);
}
QSvgNode *filter = new QSvgFeOffset(parent, inputString, outputString, rect,
dx, dy);
return filter;
}
static QSvgNode *createFeCompositeNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView in2String = attributes.value(QLatin1String("in2"));
const QStringView operatorString = attributes.value(QLatin1String("operator"));
const QStringView k1String = attributes.value(QLatin1String("k1"));
const QStringView k2String = attributes.value(QLatin1String("k2"));
const QStringView k3String = attributes.value(QLatin1String("k3"));
const QStringView k4String = attributes.value(QLatin1String("k4"));
QString inputString;
QString outputString;
QSvgRectF rect;
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
QSvgFeComposite::Operator op = QSvgFeComposite::Operator::Over;
if (operatorString.startsWith(QLatin1String("in")))
op = QSvgFeComposite::Operator::In;
else if (operatorString.startsWith(QLatin1String("out")))
op = QSvgFeComposite::Operator::Out;
else if (operatorString.startsWith(QLatin1String("atop")))
op = QSvgFeComposite::Operator::Atop;
else if (operatorString.startsWith(QLatin1String("xor")))
op = QSvgFeComposite::Operator::Xor;
else if (operatorString.startsWith(QLatin1String("lighter")))
op = QSvgFeComposite::Operator::Lighter;
else if (operatorString.startsWith(QLatin1String("arithmetic")))
op = QSvgFeComposite::Operator::Arithmetic;
QVector4D k(0, 0, 0, 0);
if (op == QSvgFeComposite::Operator::Arithmetic) {
bool ok;
qreal v = QGuiSvg::toDouble(k1String, &ok);
if (ok)
k.setX(v);
v = QGuiSvg::toDouble(k2String, &ok);
if (ok)
k.setY(v);
v = QGuiSvg::toDouble(k3String, &ok);
if (ok)
k.setZ(v);
v = QGuiSvg::toDouble(k4String, &ok);
if (ok)
k.setW(v);
}
QSvgNode *filter = new QSvgFeComposite(parent, inputString, outputString, rect,
in2String.toString(), op, k);
return filter;
}
static QSvgNode *createFeMergeNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString inputString;
QString outputString;
QSvgRectF rect;
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
QSvgNode *filter = new QSvgFeMerge(parent, inputString, outputString, rect);
return filter;
}
static QSvgNode *createFeFloodNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QStringView colorStr = attributes.value(QLatin1String("flood-color"));
const QStringView opacityStr = attributes.value(QLatin1String("flood-opacity"));
QColor color;
if (!constructColor(colorStr, opacityStr, color, handler)) {
color = QColor(Qt::black);
if (opacityStr.isEmpty())
color.setAlphaF(1.0);
else
setAlpha(opacityStr, &color);
}
QString inputString;
QString outputString;
QSvgRectF rect;
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
QSvgNode *filter = new QSvgFeFlood(parent, inputString, outputString, rect, color);
return filter;
}
static QSvgNode *createFeMergeNodeNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString inputString;
QString outputString;
QSvgRectF rect;
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
QSvgNode *filter = new QSvgFeMergeNode(parent, inputString, outputString, rect);
return filter;
}
static QSvgNode *createFeBlendNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView in2String = attributes.value(QLatin1String("in2"));
const QStringView modeString = attributes.value(QLatin1String("mode"));
QString inputString;
QString outputString;
QSvgRectF rect;
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
QSvgFeBlend::Mode mode = QSvgFeBlend::Mode::Normal;
if (modeString.startsWith(QLatin1StringView("multiply")))
mode = QSvgFeBlend::Mode::Multiply;
else if (modeString.startsWith(QLatin1StringView("screen")))
mode = QSvgFeBlend::Mode::Screen;
else if (modeString.startsWith(QLatin1StringView("darken")))
mode = QSvgFeBlend::Mode::Darken;
else if (modeString.startsWith(QLatin1StringView("lighten")))
mode = QSvgFeBlend::Mode::Lighten;
QSvgNode *filter = new QSvgFeBlend(parent, inputString, outputString, rect,
in2String.toString(), mode);
return filter;
}
static QSvgNode *createFeUnsupportedNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
QString inputString;
QString outputString;
QSvgRectF rect;
parseFilterAttributes(attributes, &inputString, &outputString, &rect);
QSvgNode *filter = new QSvgFeUnsupported(parent, inputString, outputString, rect);
return filter;
}
static std::optional<QRectF> parseViewBox(QStringView str)
{
QList<QStringView> viewBoxValues;
if (!str.isEmpty())
viewBoxValues = splitWithDelimiter(str);
if (viewBoxValues.size() == 4) {
QGuiSvg::LengthType type;
qreal x = QGuiSvg::parseLength(viewBoxValues.at(0).trimmed(), &type);
qreal y = QGuiSvg::parseLength(viewBoxValues.at(1).trimmed(), &type);
qreal w = QGuiSvg::parseLength(viewBoxValues.at(2).trimmed(), &type);
qreal h = QGuiSvg::parseLength(viewBoxValues.at(3).trimmed(), &type);
return QRectF(x, y, w, h);
}
return std::nullopt;
}
static bool parseSymbolLikeAttributes(const QXmlStreamAttributes &attributes, QSvgHandler *handler,
QRectF *rect, QRectF *viewBox, QPointF *refPoint,
QSvgSymbolLike::PreserveAspectRatios *aspect,
QSvgSymbolLike::Overflow *overflow,
bool marker = false)
{
const QStringView xStr = attributes.value(QLatin1String("x"));
const QStringView yStr = attributes.value(QLatin1String("y"));
const QStringView refXStr = attributes.value(QLatin1String("refX"));
const QStringView refYStr = attributes.value(QLatin1String("refY"));
const QStringView widthStr = attributes.value(marker ? QLatin1String("markerWidth")
: QLatin1String("width"));
const QStringView heightStr = attributes.value(marker ? QLatin1String("markerHeight")
: QLatin1String("height"));
const QStringView pAspectRStr = attributes.value(QLatin1String("preserveAspectRatio"));
const QStringView overflowStr = attributes.value(QLatin1String("overflow"));
const QStringView viewBoxStr = attributes.value(QLatin1String("viewBox"));
qreal x = 0;
if (!xStr.isEmpty()) {
QGuiSvg::LengthType type;
x = QGuiSvg::parseLength(xStr, &type);
if (type != QGuiSvg::LengthType::LT_PT)
x = QGuiSvg::convertToPixels(x, true, type);
}
qreal y = 0;
if (!yStr.isEmpty()) {
QGuiSvg::LengthType type;
y = QGuiSvg::parseLength(yStr, &type);
if (type != QGuiSvg::LengthType::LT_PT)
y = QGuiSvg::convertToPixels(y, false, type);
}
qreal width = 0;
if (!widthStr.isEmpty()) {
QGuiSvg::LengthType type;
width = QGuiSvg::parseLength(widthStr, &type);
if (type != QGuiSvg::LengthType::LT_PT)
width = QGuiSvg::convertToPixels(width, true, type);
}
qreal height = 0;
if (!heightStr.isEmpty()) {
QGuiSvg::LengthType type;
height = QGuiSvg::parseLength(heightStr, &type);
if (type != QGuiSvg::LengthType::LT_PT)
height = QGuiSvg::convertToPixels(height, false, type);
}
*rect = QRectF(x, y, width, height);
x = 0;
if (!refXStr.isEmpty()) {
QGuiSvg::LengthType type;
x = QGuiSvg::parseLength(refXStr, &type);
if (type != QGuiSvg::LengthType::LT_PT)
x = QGuiSvg::convertToPixels(x, true, type);
}
y = 0;
if (!refYStr.isEmpty()) {
QGuiSvg::LengthType type;
y = QGuiSvg::parseLength(refYStr, &type);
if (type != QGuiSvg::LengthType::LT_PT)
y = QGuiSvg::convertToPixels(y, false, type);
}
*refPoint = QPointF(x,y);
auto viewBoxResult = parseViewBox(viewBoxStr);
if (viewBoxResult)
*viewBox = *viewBoxResult;
else if (width > 0 && height > 0)
*viewBox = QRectF(0, 0, width, height);
else
*viewBox = handler->document()->viewBox();
if (viewBox->isNull())
return false;
auto pAspectRStrs = pAspectRStr.split(u" ");
QSvgSymbolLike::PreserveAspectRatio aspectX = QSvgSymbolLike::PreserveAspectRatio::xMid;
QSvgSymbolLike::PreserveAspectRatio aspectY = QSvgSymbolLike::PreserveAspectRatio::yMid;
QSvgSymbolLike::PreserveAspectRatio aspectMS = QSvgSymbolLike::PreserveAspectRatio::meet;
for (auto &pAStr : std::as_const(pAspectRStrs)) {
if (pAStr.startsWith(QLatin1String("none"))) {
aspectX = QSvgSymbolLike::PreserveAspectRatio::None;
aspectY = QSvgSymbolLike::PreserveAspectRatio::None;
}else {
if (pAStr.startsWith(QLatin1String("xMin")))
aspectX = QSvgSymbolLike::PreserveAspectRatio::xMin;
else if (pAStr.startsWith(QLatin1String("xMax")))
aspectX = QSvgSymbolLike::PreserveAspectRatio::xMax;
if (pAStr.endsWith(QLatin1String("YMin")))
aspectY = QSvgSymbolLike::PreserveAspectRatio::yMin;
else if (pAStr.endsWith(QLatin1String("YMax")))
aspectY = QSvgSymbolLike::PreserveAspectRatio::yMax;
}
if (pAStr.endsWith(QLatin1String("slice")))
aspectMS = QSvgSymbolLike::PreserveAspectRatio::slice;
}
*aspect = aspectX | aspectY | aspectMS;
// overflow is not limited to the symbol element but it is often found with the symbol element.
// the symbol element makes little sense without the overflow attribute so it is added here.
// if we decide to remove this from QSvgSymbol, the default value should be set to visible.
// The default value is visible but chrome uses default value hidden.
*overflow = QSvgSymbolLike::Overflow::Hidden;
if (overflowStr.endsWith(QLatin1String("auto")))
*overflow = QSvgSymbolLike::Overflow::Auto;
else if (overflowStr.endsWith(QLatin1String("visible")))
*overflow = QSvgSymbolLike::Overflow::Visible;
else if (overflowStr.endsWith(QLatin1String("hidden")))
*overflow = QSvgSymbolLike::Overflow::Hidden;
else if (overflowStr.endsWith(QLatin1String("scroll")))
*overflow = QSvgSymbolLike::Overflow::Scroll;
return true;
}
static QSvgNode *createSymbolNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QRectF rect, viewBox;
QPointF refP;
QSvgSymbolLike::PreserveAspectRatios aspect;
QSvgSymbolLike::Overflow overflow;
if (!parseSymbolLikeAttributes(attributes, handler, &rect, &viewBox, &refP, &aspect, &overflow))
return nullptr;
refP = QPointF(0, 0); //refX, refY is ignored in Symbol in Firefox and Chrome.
QSvgNode *symbol = new QSvgSymbol(parent, rect, viewBox, refP, aspect, overflow);
return symbol;
}
static QSvgNode *createMarkerNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QRectF rect, viewBox;
QPointF refP;
QSvgSymbolLike::PreserveAspectRatios aspect;
QSvgSymbolLike::Overflow overflow;
const QStringView orientStr = attributes.value(QLatin1String("orient"));
const QStringView markerUnitsStr = attributes.value(QLatin1String("markerUnits"));
qreal orientationAngle = 0;
QSvgMarker::Orientation orientation;
if (orientStr.startsWith(QLatin1String("auto-start-reverse")))
orientation = QSvgMarker::Orientation::AutoStartReverse;
else if (orientStr.startsWith(QLatin1String("auto")))
orientation = QSvgMarker::Orientation::Auto;
else {
orientation = QSvgMarker::Orientation::Value;
bool ok;
qreal a;
if (orientStr.endsWith(QLatin1String("turn")))
a = 360. * QGuiSvg::toDouble(orientStr.mid(0, orientStr.length()-4), &ok);
else if (orientStr.endsWith(QLatin1String("grad")))
a = QGuiSvg::toDouble(orientStr.mid(0, orientStr.length()-4), &ok);
else if (orientStr.endsWith(QLatin1String("rad")))
a = 180. / M_PI * QGuiSvg::toDouble(orientStr.mid(0, orientStr.length()-3), &ok);
else
a = QGuiSvg::toDouble(orientStr, &ok);
if (ok)
orientationAngle = a;
}
QSvgMarker::MarkerUnits markerUnits = QSvgMarker::MarkerUnits::StrokeWidth;
if (markerUnitsStr.startsWith(QLatin1String("userSpaceOnUse")))
markerUnits = QSvgMarker::MarkerUnits::UserSpaceOnUse;
if (!parseSymbolLikeAttributes(attributes, handler, &rect, &viewBox, &refP, &aspect, &overflow, true))
return nullptr;
QSvgNode *marker = new QSvgMarker(parent, rect, viewBox, refP, aspect, overflow,
orientation, orientationAngle, markerUnits);
return marker;
}
static QSvgNode *createPathNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QStringView data = attributes.value(QLatin1String("d"));
std::optional<QPainterPath> qpath = QGuiSvg::parsePath(data,
!handler->trustedSourceMode());
if (!qpath) {
qCWarning(lcSvgHandler, "Invalid path data; path truncated.");
return nullptr;
}
qpath.value().setFillRule(Qt::WindingFill);
QSvgNode *path = new QSvgPath(parent, qpath.value());
return path;
}
static QSvgNode *createPolyNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
bool createLine)
{
QStringView pointsStr = attributes.value(QLatin1String("points"));
const QList<qreal> points = parseNumbersList(&pointsStr);
if (points.size() < 4)
return nullptr;
QPolygonF poly(points.size()/2);
for (int i = 0; i < poly.size(); ++i)
poly[i] = QPointF(points.at(2 * i), points.at(2 * i + 1));
if (createLine)
return new QSvgPolyline(parent, poly);
else
return new QSvgPolygon(parent, poly);
}
static QSvgNode *createPolygonNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
return createPolyNode(parent, attributes, false);
}
static QSvgNode *createPolylineNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
return createPolyNode(parent, attributes, true);
}
static bool parsePrefetchNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgPaintServerSharedPtr createRadialGradientNode(const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
const QStringView cx = attributes.value(QLatin1String("cx"));
const QStringView cy = attributes.value(QLatin1String("cy"));
const QStringView r = attributes.value(QLatin1String("r"));
const QStringView fx = attributes.value(QLatin1String("fx"));
const QStringView fy = attributes.value(QLatin1String("fy"));
qreal ncx = 0.5;
qreal ncy = 0.5;
const bool tiny12FeaturesOnly = handler->options().testFlag(QtSvg::Tiny12FeaturesOnly);
if (!cx.isEmpty())
ncx = convertToNumber(cx, tiny12FeaturesOnly);
if (!cy.isEmpty())
ncy = convertToNumber(cy, tiny12FeaturesOnly);
qreal nr = 0.5;
if (!r.isEmpty())
nr = convertToNumber(r, tiny12FeaturesOnly);
if (nr <= 0.0)
return nullptr;
qreal nfx = ncx;
if (!fx.isEmpty())
nfx = convertToNumber(fx, tiny12FeaturesOnly);
qreal nfy = ncy;
if (!fy.isEmpty())
nfy = convertToNumber(fy, tiny12FeaturesOnly);
auto grad = std::make_unique<QRadialGradient>(ncx, ncy, nr, nfx, nfy, 0);
grad->setInterpolationMode(QGradient::ComponentInterpolation);
QSvgGradientPaintSharedPtr paintServer = std::make_shared<QSvgGradientPaint>(std::move(grad));
parseBaseGradient(attributes, paintServer.get(), handler);
return paintServer;
}
static QSvgNode *createRectNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView x = attributes.value(QLatin1String("x"));
const QStringView y = attributes.value(QLatin1String("y"));
const QStringView width = attributes.value(QLatin1String("width"));
const QStringView height = attributes.value(QLatin1String("height"));
const QStringView rx = attributes.value(QLatin1String("rx"));
const QStringView ry = attributes.value(QLatin1String("ry"));
bool ok = true;
QGuiSvg::LengthType type;
qreal nwidth = QGuiSvg::parseLength(width, &type, &ok);
if (!ok)
return nullptr;
nwidth = QGuiSvg::convertToPixels(nwidth, true, type);
qreal nheight = QGuiSvg::parseLength(height, &type, &ok);
if (!ok)
return nullptr;
nheight = QGuiSvg::convertToPixels(nheight, true, type);
qreal nrx = QGuiSvg::toDouble(rx);
qreal nry = QGuiSvg::toDouble(ry);
QRectF bounds(QGuiSvg::toDouble(x), QGuiSvg::toDouble(y), nwidth, nheight);
if (bounds.isEmpty())
return nullptr;
if (!rx.isEmpty() && ry.isEmpty())
nry = nrx;
else if (!ry.isEmpty() && rx.isEmpty())
nrx = nry;
//9.2 The 'rect' element clearly specifies it
// but the case might in fact be handled because
// we draw rounded rectangles differently
if (nrx > bounds.width()/2)
nrx = bounds.width()/2;
if (nry > bounds.height()/2)
nry = bounds.height()/2;
//we draw rounded rect from 0...99
//svg from 0...bounds.width()/2 so we're adjusting the
//coordinates
nrx *= (100/(bounds.width()/2));
nry *= (100/(bounds.height()/2));
QSvgNode *rect = new QSvgRect(parent, bounds, nrx, nry);
return rect;
}
static bool parseScriptNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static bool parseSetNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return true;
}
static QSvgPaintServerSharedPtr createSolidColorNode(const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
Q_UNUSED(attributes);
QStringView solidColorStr = attributes.value(QLatin1String("solid-color"));
QStringView solidOpacityStr = attributes.value(QLatin1String("solid-opacity"));
if (solidOpacityStr.isEmpty())
solidOpacityStr = attributes.value(QLatin1String("opacity"));
QColor color;
if (!constructColor(solidColorStr, solidOpacityStr, color, handler))
return 0;
std::shared_ptr<QSvgSolidColorPaint> paintServer = std::make_shared<QSvgSolidColorPaint>(color);
return paintServer;
}
static bool parseStopNode(QSvgPaintServer *paintServer,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
if (paintServer->type() != QSvgPaintServer::Type::Gradient)
return false;
QString nodeIdStr = someId(attributes);
QString xmlClassStr = attributes.value(QLatin1String("class")).toString();
//### nasty hack because stop gradients are not in the rendering tree
// we force a dummy node with the same id and class into a rendering
// tree to figure out whether the selector has a style for it
// QSvgStyleSelector should be coded in a way that could avoid it
QSvgDummyNode dummy;
dummy.setNodeId(nodeIdStr);
dummy.setXmlClass(xmlClassStr);
QSvgAttributes attrs(attributes, handler);
#ifndef QT_NO_CSSPARSER
QXmlStreamAttributes cssAttributes;
handler->cssHandler().styleLookup(&dummy, cssAttributes);
attrs.setAttributes(cssAttributes, handler);
QXmlStreamAttributes styleCssAttributes;
QStringView style = attributes.value(QLatin1String("style"));
if (!style.isEmpty())
handler->cssHandler().parseCSStoXMLAttrs(style.toString(), styleCssAttributes);
attrs.setAttributes(styleCssAttributes, handler);
#endif
//TODO: Handle style parsing for gradients stop like the rest of the nodes.
parseColor(&dummy, attrs, handler);
QSvgGradientPaint *gradientStyle = static_cast<QSvgGradientPaint*>(paintServer);
QStringView colorStr = attrs.stopColor;
QColor color;
bool ok = true;
qreal offset = convertToNumber(attrs.offset,
handler->options().testFlag(QtSvg::Tiny12FeaturesOnly), &ok);
if (!ok)
offset = 0.0;
if (!constructColor(colorStr, attrs.stopOpacity, color, handler)) {
color = Qt::black;
if (!attrs.stopOpacity.isEmpty())
setAlpha(attrs.stopOpacity, &color);
}
QGradient *grad = gradientStyle->qgradient();
offset = qMin(qreal(1), qMax(qreal(0), offset)); // Clamp to range [0, 1]
QGradientStops stops;
if (gradientStyle->gradientStopsSet()) {
stops = grad->stops();
// If the stop offset equals the one previously added, add an epsilon to make it greater.
if (offset <= stops.back().first)
offset = stops.back().first + FLT_EPSILON;
}
// If offset is greater than one, it must be clamped to one.
if (offset > 1.0) {
if ((stops.size() == 1) || (stops.at(stops.size() - 2).first < 1.0 - FLT_EPSILON)) {
stops.back().first = 1.0 - FLT_EPSILON;
grad->setStops(stops);
}
offset = 1.0;
}
grad->setColorAt(offset, color);
gradientStyle->setGradientStopsSet(true);
return true;
}
static bool parseStyleNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
Q_UNUSED(parent);
const QStringView type = attributes.value(QLatin1String("type"));
if (type.compare(QLatin1String("text/css"), Qt::CaseInsensitive) == 0 || type.isNull())
handler->readStyle();
return true;
}
static QSvgNode *createSvgNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
QSvgDocument *node = new QSvgDocument(handler->options(), handler->animatorType());
const QStringView widthStr = attributes.value(QLatin1String("width"));
const QStringView heightStr = attributes.value(QLatin1String("height"));
const QStringView viewBoxStr = attributes.value(QLatin1String("viewBox"));
QGuiSvg::LengthType type = QGuiSvg::LengthType::LT_PX; // FIXME: is the default correct?
qreal width = 0;
if (!widthStr.isEmpty()) {
width = QGuiSvg::parseLength(widthStr, &type);
if (type != QGuiSvg::LengthType::LT_PT)
width = QGuiSvg::convertToPixels(width, true, type);
node->setWidth(int(width), type == QGuiSvg::LengthType::LT_PERCENT);
}
qreal height = 0;
if (!heightStr.isEmpty()) {
height = QGuiSvg::parseLength(heightStr, &type);
if (type != QGuiSvg::LengthType::LT_PT)
height = QGuiSvg::convertToPixels(height, false, type);
node->setHeight(int(height), type == QGuiSvg::LengthType::LT_PERCENT);
}
auto viewBoxResult = parseViewBox(viewBoxStr);
if (viewBoxResult) {
node->setViewBox(*viewBoxResult);
} else if (width && height) {
if (type == QGuiSvg::LengthType::LT_PT) {
width = QGuiSvg::convertToPixels(width, false, type);
height = QGuiSvg::convertToPixels(height, false, type);
}
node->setViewBox(QRectF(0, 0, width, height));
}
handler->setDefaultCoordinateSystem(QGuiSvg::LengthType::LT_PX);
return node;
}
static QSvgNode *createSwitchNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(attributes);
QSvgSwitch *node = new QSvgSwitch(parent);
return node;
}
static QSvgNode *createPatternNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
const QStringView x = attributes.value(QLatin1String("x"));
const QStringView y = attributes.value(QLatin1String("y"));
const QStringView width = attributes.value(QLatin1String("width"));
const QStringView height = attributes.value(QLatin1String("height"));
const QStringView patternUnits = attributes.value(QLatin1String("patternUnits"));
const QStringView patternContentUnits = attributes.value(QLatin1String("patternContentUnits"));
const QStringView patternTransform = attributes.value(QLatin1String("patternTransform"));
QtSvg::UnitTypes nPatternUnits = patternUnits.contains(QLatin1String("userSpaceOnUse")) ?
QtSvg::UnitTypes::userSpaceOnUse : QtSvg::UnitTypes::objectBoundingBox;
QtSvg::UnitTypes nPatternContentUnits = patternContentUnits.contains(QLatin1String("objectBoundingBox")) ?
QtSvg::UnitTypes::objectBoundingBox : QtSvg::UnitTypes::userSpaceOnUse;
const QStringView viewBoxStr = attributes.value(QLatin1String("viewBox"));
bool ok = false;
QGuiSvg::LengthType type;
qreal nx = QGuiSvg::parseLength(x, &type, &ok);
nx = QGuiSvg::convertToPixels(nx, true, type);
if (!ok)
nx = 0.0;
else if (type == QGuiSvg::LengthType::LT_PERCENT && nPatternUnits == QtSvg::UnitTypes::userSpaceOnUse)
nx = (nx / 100.) * handler->document()->viewBox().width();
else if (type == QGuiSvg::LengthType::LT_PERCENT)
nx = nx / 100.;
qreal ny = QGuiSvg::parseLength(y, &type, &ok);
ny = QGuiSvg::convertToPixels(ny, true, type);
if (!ok)
ny = 0.0;
else if (type == QGuiSvg::LengthType::LT_PERCENT && nPatternUnits == QtSvg::UnitTypes::userSpaceOnUse)
ny = (ny / 100.) * handler->document()->viewBox().height();
else if (type == QGuiSvg::LengthType::LT_PERCENT)
ny = ny / 100.;
qreal nwidth = QGuiSvg::parseLength(width, &type, &ok);
nwidth = QGuiSvg::convertToPixels(nwidth, true, type);
if (!ok)
nwidth = 0.0;
else if (type == QGuiSvg::LengthType::LT_PERCENT && nPatternUnits == QtSvg::UnitTypes::userSpaceOnUse)
nwidth = (nwidth / 100.) * handler->document()->viewBox().width();
else if (type == QGuiSvg::LengthType::LT_PERCENT)
nwidth = nwidth / 100.;
qreal nheight = QGuiSvg::parseLength(height, &type, &ok);
nheight = QGuiSvg::convertToPixels(nheight, true, type);
if (!ok)
nheight = 0.0;
else if (type == QGuiSvg::LengthType::LT_PERCENT && nPatternUnits == QtSvg::UnitTypes::userSpaceOnUse)
nheight = (nheight / 100.) * handler->document()->viewBox().height();
else if (type == QGuiSvg::LengthType::LT_PERCENT)
nheight = nheight / 100.;
QRectF viewBox;
auto viewBoxResult = parseViewBox(viewBoxStr);
if (viewBoxResult) {
if (viewBoxResult->width() > 0 && viewBoxResult->height() > 0)
viewBox = *viewBoxResult;
}
QTransform matrix;
if (!patternTransform.isEmpty())
matrix = parseTransformationMatrix(patternTransform);
QRectF bounds(nx, ny, nwidth, nheight);
if (bounds.isEmpty())
return nullptr;
QSvgRectF patternRectF(bounds, nPatternUnits, nPatternUnits, nPatternUnits, nPatternUnits);
QSvgPattern *node = new QSvgPattern(parent, patternRectF, viewBox, nPatternContentUnits, matrix);
// Create a style node for the Pattern.
QSvgPaintServerSharedPtr prop = std::make_shared<QSvgPatternPaint>(node);
handler->document()->addPaintServer(std::move(prop), someId(attributes));
return node;
}
static bool parseTbreakNode(QSvgNode *parent,
const QXmlStreamAttributes &,
QSvgHandler *)
{
if (parent->type() != QSvgNode::Textarea)
return false;
static_cast<QSvgText*>(parent)->addLineBreak();
return true;
}
static QSvgNode *createTextNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
const QStringView x = attributes.value(QLatin1String("x"));
const QStringView y = attributes.value(QLatin1String("y"));
//### editable and rotate not handled
QGuiSvg::LengthType type;
qreal nx = QGuiSvg::parseLength(x, &type);
nx = QGuiSvg::convertToPixels(nx, true, type);
qreal ny = QGuiSvg::parseLength(y, &type);
ny = QGuiSvg::convertToPixels(ny, true, type);
QSvgNode *text = new QSvgText(parent, QPointF(nx, ny));
return text;
}
static QSvgNode *createTextAreaNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QSvgText *node = static_cast<QSvgText *>(createTextNode(parent, attributes, handler));
if (node) {
QGuiSvg::LengthType type;
qreal width = QGuiSvg::parseLength(attributes.value(QLatin1String("width")), &type);
qreal height = QGuiSvg::parseLength(attributes.value(QLatin1String("height")), &type);
node->setTextArea(QSizeF(width, height));
}
return node;
}
static QSvgNode *createTspanNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QSvgTspan *tspan = new QSvgTspan(parent);
if (handler->options().testFlag(QtSvg::Tiny12FeaturesOnly))
return tspan;
// A <tspan> may carry absolute x/y coordinates in the current user coordinate system
// (the same space as the enclosing <text> element's x/y). We take them at face value:
// the run's first glyph is positioned there. This is how tools such as Inkscape lay
// out multi-line text (one <tspan> per line, each with its own y).
const QStringView x = attributes.value(QLatin1String("x"));
if (!x.isEmpty()) {
QGuiSvg::LengthType type;
qreal nx = QGuiSvg::parseLength(x, &type);
tspan->setX(QGuiSvg::convertToPixels(nx, true, type));
}
const QStringView y = attributes.value(QLatin1String("y"));
if (!y.isEmpty()) {
QGuiSvg::LengthType type;
qreal ny = QGuiSvg::parseLength(y, &type);
tspan->setY(QGuiSvg::convertToPixels(ny, false, type));
}
return tspan;
}
static QSvgNode *createUseNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *handler)
{
QStringView linkId = attributes.value(QLatin1String("xlink:href"));
const QStringView xStr = attributes.value(QLatin1String("x"));
const QStringView yStr = attributes.value(QLatin1String("y"));
if (linkId.isEmpty())
linkId = attributes.value(QLatin1String("href"));
QString linkIdStr = idFromIRI(linkId).toString();
switch (parent->type()) {
case QSvgNode::Doc:
case QSvgNode::Defs:
case QSvgNode::Group:
case QSvgNode::Switch:
case QSvgNode::Mask:
case QSvgNode::Symbol:
case QSvgNode::Marker:
case QSvgNode::Pattern:
break;
default:
qCWarning(lcSvgHandler, "<use> element %ls in wrong context!", qUtf16Printable(linkIdStr));
return 0;
}
QPointF pt;
if (!xStr.isNull() || !yStr.isNull()) {
QGuiSvg::LengthType type;
qreal nx = QGuiSvg::parseLength(xStr, &type);
nx = QGuiSvg::convertToPixels(nx, true, type);
qreal ny = QGuiSvg::parseLength(yStr, &type);
ny = QGuiSvg::convertToPixels(ny, true, type);
pt = QPointF(nx, ny);
}
QSvgNode *link = handler->document()->namedNode(linkIdStr);
if (link) {
if (parent->isDescendantOf(link))
qCWarning(lcSvgHandler, "link %ls is recursive!", qUtf16Printable(linkIdStr));
return new QSvgUse(pt, parent, link);
}
//delay link resolving, link might have not been created yet
return new QSvgUse(pt, parent, linkIdStr);
}
static QSvgNode *createVideoNode(QSvgNode *parent,
const QXmlStreamAttributes &attributes,
QSvgHandler *)
{
Q_UNUSED(parent); Q_UNUSED(attributes);
return 0;
}
typedef QSvgNode *(*FactoryMethod)(QSvgNode *, const QXmlStreamAttributes &, QSvgHandler *);
static FactoryMethod findGroupFactory(const QStringView name, QtSvg::Options options)
{
if (name.isEmpty())
return 0;
QStringView ref = name.mid(1);
switch (name.at(0).unicode()) {
case 'd':
if (ref == QLatin1String("efs")) return createDefsNode;
break;
case 'f':
if (ref == QLatin1String("ilter") && !options.testFlag(QtSvg::Tiny12FeaturesOnly)) return createFilterNode;
break;
case 'g':
if (ref.isEmpty()) return createGNode;
break;
case 'm':
if (ref == QLatin1String("ask") && !options.testFlag(QtSvg::Tiny12FeaturesOnly)) return createMaskNode;
if (ref == QLatin1String("arker") && !options.testFlag(QtSvg::Tiny12FeaturesOnly)) return createMarkerNode;
break;
case 's':
if (ref == QLatin1String("vg")) return createSvgNode;
if (ref == QLatin1String("witch")) return createSwitchNode;
if (ref == QLatin1String("ymbol") && !options.testFlag(QtSvg::Tiny12FeaturesOnly)) return createSymbolNode;
break;
case 'p':
if (ref == QLatin1String("attern") && !options.testFlag(QtSvg::Tiny12FeaturesOnly)) return createPatternNode;
break;
default:
break;
}
return 0;
}
static FactoryMethod findGraphicsFactory(const QStringView name, QtSvg::Options options)
{
Q_UNUSED(options);
if (name.isEmpty())
return 0;
QStringView ref = name.mid(1);
switch (name.at(0).unicode()) {
case 'c':
if (ref == QLatin1String("ircle")) return createCircleNode;
break;
case 'e':
if (ref == QLatin1String("llipse")) return createEllipseNode;
break;
case 'i':
if (ref == QLatin1String("mage")) return createImageNode;
break;
case 'l':
if (ref == QLatin1String("ine")) return createLineNode;
break;
case 'p':
if (ref == QLatin1String("ath")) return createPathNode;
if (ref == QLatin1String("olygon")) return createPolygonNode;
if (ref == QLatin1String("olyline")) return createPolylineNode;
break;
case 'r':
if (ref == QLatin1String("ect")) return createRectNode;
break;
case 't':
if (ref == QLatin1String("ext")) return createTextNode;
if (ref == QLatin1String("extArea")) return createTextAreaNode;
if (ref == QLatin1String("span")) return createTspanNode;
break;
case 'u':
if (ref == QLatin1String("se")) return createUseNode;
break;
case 'v':
if (ref == QLatin1String("ideo")) return createVideoNode;
break;
default:
break;
}
return 0;
}
static FactoryMethod findFilterFactory(const QStringView name, QtSvg::Options options)
{
if (options.testFlag(QtSvg::Tiny12FeaturesOnly))
return 0;
if (name.isEmpty())
return 0;
if (!name.startsWith(QLatin1String("fe")))
return 0;
if (name == QLatin1String("feMerge")) return createFeMergeNode;
if (name == QLatin1String("feColorMatrix")) return createFeColorMatrixNode;
if (name == QLatin1String("feGaussianBlur")) return createFeGaussianBlurNode;
if (name == QLatin1String("feOffset")) return createFeOffsetNode;
if (name == QLatin1String("feMergeNode")) return createFeMergeNodeNode;
if (name == QLatin1String("feComposite")) return createFeCompositeNode;
if (name == QLatin1String("feFlood")) return createFeFloodNode;
if (name == QLatin1String("feBlend")) return createFeBlendNode;
static const QStringList unsupportedFilters = {
QStringLiteral("feComponentTransfer"),
QStringLiteral("feConvolveMatrix"),
QStringLiteral("feDiffuseLighting"),
QStringLiteral("feDisplacementMap"),
QStringLiteral("feDropShadow"),
QStringLiteral("feFuncA"),
QStringLiteral("feFuncB"),
QStringLiteral("feFuncG"),
QStringLiteral("feFuncR"),
QStringLiteral("feImage"),
QStringLiteral("feMorphology"),
QStringLiteral("feSpecularLighting"),
QStringLiteral("feTile"),
QStringLiteral("feTurbulence")
};
if (unsupportedFilters.contains(name))
return createFeUnsupportedNode;
return 0;
}
typedef QSvgNode *(*AnimationMethod)(QSvgNode *, const QXmlStreamAttributes &, QSvgHandler *);
static AnimationMethod findAnimationFactory(const QStringView name, QtSvg::Options options)
{
if (name.isEmpty() || options.testFlag(QtSvg::DisableSMILAnimations))
return 0;
QStringView ref = name.mid(1);
switch (name.at(0).unicode()) {
case 'a':
if (ref == QLatin1String("nimate")) return createAnimateNode;
if (ref == QLatin1String("nimateColor")) return createAnimateColorNode;
if (ref == QLatin1String("nimateMotion")) return createAnimateMotionNode;
if (ref == QLatin1String("nimateTransform")) return createAnimateTransformNode;
break;
default:
break;
}
return 0;
}
typedef bool (*ParseMethod)(QSvgNode *, const QXmlStreamAttributes &, QSvgHandler *);
static ParseMethod findUtilFactory(const QStringView name, QtSvg::Options options)
{
if (name.isEmpty())
return 0;
QStringView ref = name.mid(1);
switch (name.at(0).unicode()) {
case 'a':
if (ref.isEmpty()) return parseAnchorNode;
if (ref == QLatin1String("udio")) return parseAudioNode;
break;
case 'd':
if (ref == QLatin1String("iscard")) return parseDiscardNode;
break;
case 'f':
if (ref == QLatin1String("oreignObject")) return parseForeignObjectNode;
break;
case 'h':
if (ref == QLatin1String("andler")) return parseHandlerNode;
if (ref == QLatin1String("kern")) return parseHkernNode;
break;
case 'm':
if (ref == QLatin1String("etadata")) return parseMetadataNode;
if (ref == QLatin1String("path")) return parseMpathNode;
if (ref == QLatin1String("ask") && !options.testFlag(QtSvg::Tiny12FeaturesOnly)) return parseMaskNode;
if (ref == QLatin1String("arker") && !options.testFlag(QtSvg::Tiny12FeaturesOnly)) return parseMarkerNode;
break;
case 'p':
if (ref == QLatin1String("refetch")) return parsePrefetchNode;
break;
case 's':
if (ref == QLatin1String("cript")) return parseScriptNode;
if (ref == QLatin1String("et")) return parseSetNode;
if (ref == QLatin1String("tyle")) return parseStyleNode;
break;
case 't':
if (ref == QLatin1String("break")) return parseTbreakNode;
break;
default:
break;
}
return 0;
}
typedef QSvgFontPtr (*FontFactoryMethod)(const QXmlStreamAttributes &,
QSvgHandler *);
static FontFactoryMethod findFontFactoryMethod(const QStringView name)
{
if (name == "font"_L1)
return createFontNode;
return nullptr;
}
typedef bool (*FontParseMethod)(QSvgFont *,
const QXmlStreamAttributes &,
QSvgHandler *);
static FontParseMethod findFontParseFactoryMethod(const QStringView name)
{
if (name.isEmpty())
return nullptr;
QStringView ref = name.mid(1);
switch (name.at(0).unicode()) {
case 'f':
if (ref == QLatin1String("ont-face")) return parseFontFaceNode;
if (ref == QLatin1String("ont-face-name")) return parseFontFaceNameNode;
if (ref == QLatin1String("ont-face-src")) return parseFontFaceSrcNode;
if (ref == QLatin1String("ont-face-uri")) return parseFontFaceUriNode;
break;
case 'g':
if (ref == QLatin1String("lyph")) return parseGlyphNode;
break;
case 'm':
if (ref == QLatin1String("issing-glyph")) return parseMissingGlyphNode;
break;
default:
break;
}
return nullptr;
}
typedef QSvgPaintServerSharedPtr (*PaintServerFactoryMethod)(const QXmlStreamAttributes &,
QSvgHandler *);
static PaintServerFactoryMethod findPaintServerFactoryMethod(const QStringView name)
{
if (name.isEmpty())
return nullptr;
QStringView ref = name.sliced(1);
switch (name.at(0).unicode()) {
case 'l':
if (ref == QLatin1String("inearGradient")) return createLinearGradientNode;
break;
case 'r':
if (ref == QLatin1String("adialGradient")) return createRadialGradientNode;
break;
case 's':
if (ref == QLatin1String("olidColor")) return createSolidColorNode;
break;
default:
break;
}
return nullptr;
}
typedef bool (*PaintServerParseMethod)(QSvgPaintServer *,
const QXmlStreamAttributes &,
QSvgHandler *);
static PaintServerParseMethod findPaintServerUtilFactoryMethod(const QStringView name)
{
if (name.isEmpty())
return 0;
QStringView ref = name.sliced(1);
switch (name.at(0).unicode()) {
case 's':
if (ref == QLatin1String("top")) return parseStopNode;
break;
default:
break;
}
return 0;
}
QSvgHandler::QSvgHandler(QIODevice *device, QtSvg::Options options,
QtSvg::AnimatorType type)
: m_reader{std::make_unique<QXmlStreamReader>(device)}
, xml{m_reader.get()}
, m_options(options)
, m_animatorType(type)
{
init();
}
QSvgHandler::QSvgHandler(const QByteArray &data, QtSvg::Options options,
QtSvg::AnimatorType type)
: m_reader{std::make_unique<QXmlStreamReader>(data)}
, xml{m_reader.get()}
, m_options(options)
, m_animatorType(type)
{
init();
}
QSvgHandler::QSvgHandler(QXmlStreamReader *const reader, QtSvg::Options options,
QtSvg::AnimatorType type)
: m_reader(nullptr) // we don't own it
, xml(reader)
, m_options(options)
, m_animatorType(type)
{
init();
}
void QSvgHandler::init()
{
m_defaultPen = QPen(Qt::black, 1, Qt::SolidLine, Qt::FlatCap, Qt::SvgMiterJoin);
m_defaultPen.setMiterLimit(4);
parse();
}
static bool detectPatternCycles(const QSvgNode *node, QList<const QSvgNode *> &linkable)
{
const QSvgFillStyle *fillStyle = static_cast<const QSvgFillStyle*>
(node->styleProperty(QSvgStyleProperty::Fill));
if (fillStyle && fillStyle->paintServer()
&& fillStyle->paintServer()->type() == QSvgPaintServer::Type::Pattern) {
QSvgPatternPaint *patternStyle = static_cast<QSvgPatternPaint *>(fillStyle->paintServer());
if (linkable.contains(patternStyle->patternNode()))
return true;
}
const QSvgStrokeStyle *strokeStyle = static_cast<const QSvgStrokeStyle*>
(node->styleProperty(QSvgStyleProperty::Stroke));
if (strokeStyle && strokeStyle->paintServer()
&& strokeStyle->paintServer()->type() == QSvgPaintServer::Type::Pattern) {
QSvgPatternPaint *patternStyle = static_cast<QSvgPatternPaint *>(strokeStyle->paintServer());
if (linkable.contains(patternStyle->patternNode()))
return true;
}
return false;
}
/* The function goes through a node and its descendants to
* find any circular references in the parsed SVG file. It
* is important for this to happen non-recursively to avoid
* stack overflows.
* The function maintains two lists of nodes. The list "linkable"
* is used to track patterns and uses because these are the nodes
* that can be referenced by other nodes.
* Example :
* <pattern id="pat1" />
* <rect fill="url(#pat1)" />
* </pattern>
*
* The other list of nodes is a stack to traverse the tree
* non-recursively, the std::pair stored in the stack will
* indicate whether a pattern or use has been visited and
* added to the "linkable" list or not. If the bool is set to true,
* this element can be popped out from the "linkable" list. */
static bool detectCycles(const QSvgNode *n)
{
if (Q_UNLIKELY(!n))
return false;
QList<const QSvgNode *> linkable;
using NodeState = std::pair<const QSvgNode *, bool>;
QStack<NodeState> nodes;
nodes.push({n, false});
do {
auto current = nodes.pop();
if (current.second) {
Q_ASSERT(!linkable.isEmpty() && current.first == linkable.back());
linkable.pop_back();
continue;
}
switch (current.first->type()) {
case QSvgNode::Doc:
case QSvgNode::Group:
case QSvgNode::Defs:
case QSvgNode::Pattern:
{
if (current.first->type() == QSvgNode::Pattern) {
linkable.append(current.first);
nodes.push({current.first, true});
}
auto *g = static_cast<const QSvgStructureNode*>(current.first);
for (auto it = g->renderers().crbegin(); it != g->renderers().crend(); it++)
nodes.push({it->get(), false});
}
break;
case QSvgNode::Use:
{
if (linkable.contains(current.first))
return true;
auto *u = static_cast<const QSvgUse*>(current.first);
auto *target = u->link();
if (target) {
linkable.append(u);
nodes.push({u, true});
nodes.push({target, false});
}
}
break;
case QSvgNode::Rect:
case QSvgNode::Ellipse:
case QSvgNode::Circle:
case QSvgNode::Line:
case QSvgNode::Path:
case QSvgNode::Polygon:
case QSvgNode::Polyline:
case QSvgNode::Tspan:
if (detectPatternCycles(current.first, linkable))
return true;
break;
default:
break;
}
} while (!nodes.isEmpty());
return false;
}
static bool detectCyclesAndWarn(const QSvgNode *node) {
const bool cycleFound = detectCycles(node);
if (cycleFound)
qCWarning(lcSvgHandler, "Cycles detected in SVG, document discarded.");
return cycleFound;
}
// Having too many unfinished elements will cause a stack overflow
// in the dtor of QSvgDocument, see oss-fuzz issue 24000.
static const int unfinishedElementsLimit = 2048;
void QSvgHandler::parse()
{
xml->setNamespaceProcessing(false);
bool done = false;
int remainingUnfinishedElements = unfinishedElementsLimit;
while (!xml->atEnd() && !done) {
switch (xml->readNext()) {
case QXmlStreamReader::StartElement:
// he we could/should verify the namespaces, and simply
// call m_skipNodes(Unknown) if we don't know the
// And if the document uses an external dtd, the reported
// namespaceUri is empty. The only possible strategy at
// this point is to do what everyone else seems to do and
// ignore the reported namespaceUri completely.
if (remainingUnfinishedElements && startElement(xml->name().toString(),
xml->attributes())) {
--remainingUnfinishedElements;
} else {
m_doc.reset();
return;
}
break;
case QXmlStreamReader::EndElement:
done = endElement(xml->name());
++remainingUnfinishedElements;
break;
case QXmlStreamReader::Characters:
characters(xml->text());
break;
case QXmlStreamReader::ProcessingInstruction:
processingInstruction(xml->processingInstructionTarget(), xml->processingInstructionData());
break;
default:
break;
}
}
if (!m_doc)
return;
resolvePaintServers();
resolveNodes();
if (detectCyclesAndWarn(m_doc.get()))
m_doc.reset();
}
bool QSvgHandler::startElement(const QString localName, const QXmlStreamAttributes &attributes)
{
QSvgNode *node = nullptr;
pushColorCopy();
/* The xml:space attribute may appear on any element. We do
* a lookup by the qualified name here, but this is namespace aware, since
* the XML namespace can only be bound to prefix "xml." */
const QStringView xmlSpace(attributes.value(QLatin1String("xml:space")));
if (xmlSpace.isNull()) {
// This element has no xml:space attribute.
m_whitespaceMode.push(m_whitespaceMode.isEmpty() ? QSvgText::Default : m_whitespaceMode.top());
} else if (xmlSpace == QLatin1String("preserve")) {
m_whitespaceMode.push(QSvgText::Preserve);
} else if (xmlSpace == QLatin1String("default")) {
m_whitespaceMode.push(QSvgText::Default);
} else {
const QByteArray msg = '"' + xmlSpace.toLocal8Bit()
+ "\" is an invalid value for attribute xml:space. "
"Valid values are \"preserve\" and \"default\".";
qCWarning(lcSvgHandler, "%s", prefixMessage(msg, xml).constData());
m_whitespaceMode.push(QSvgText::Default);
}
if (!m_doc && localName != QLatin1String("svg"))
return false;
if (m_doc && localName == QLatin1String("svg")) {
m_skipNodes.push(Doc);
qCWarning(lcSvgHandler) << "Skipping a nested svg element, because "
"SVG Document must not contain nested svg elements in Svg Tiny 1.2";
}
if (!m_skipNodes.isEmpty() && m_skipNodes.top() == Doc)
return true;
if (FactoryMethod method = findGroupFactory(localName, options())) {
//group
if (!m_doc) {
node = method(nullptr, attributes, this);
if (node) {
Q_ASSERT(node->type() == QSvgNode::Doc);
m_doc.reset(static_cast<QSvgDocument*>(node));
}
} else {
switch (m_nodes.top()->type()) {
case QSvgNode::Doc:
case QSvgNode::Group:
case QSvgNode::Defs:
case QSvgNode::Switch:
case QSvgNode::Mask:
case QSvgNode::Symbol:
case QSvgNode::Marker:
case QSvgNode::Pattern:
{
node = method(m_nodes.top(), attributes, this);
if (node) {
QSvgStructureNode *group =
static_cast<QSvgStructureNode*>(m_nodes.top());
group->addChild(m_doc.get(), std::unique_ptr<QSvgNode>(node), someId(attributes));
}
}
break;
default:
const QByteArray msg = QByteArrayLiteral("Could not add child element to parent element because the types are incorrect.");
qCWarning(lcSvgHandler, "%s", prefixMessage(msg, xml).constData());
break;
}
}
if (node) {
parseCoreNode(node, attributes);
parseStyle(node, attributes, this);
if (node->type() == QSvgNode::Filter)
m_toBeResolved.append(node);
}
} else if (FactoryMethod method = findGraphicsFactory(localName, options())) {
//rendering element
Q_ASSERT(!m_nodes.isEmpty());
switch (m_nodes.top()->type()) {
case QSvgNode::Doc:
case QSvgNode::Group:
case QSvgNode::Defs:
case QSvgNode::Switch:
case QSvgNode::Mask:
case QSvgNode::Symbol:
case QSvgNode::Marker:
case QSvgNode::Pattern:
{
if (localName == QLatin1String("tspan")) {
const QByteArray msg = QByteArrayLiteral("\'tspan\' element in wrong context.");
qCWarning(lcSvgHandler, "%s", prefixMessage(msg, xml).constData());
break;
}
node = method(m_nodes.top(), attributes, this);
if (node) {
QSvgStructureNode *group = static_cast<QSvgStructureNode *>(m_nodes.top());
if (m_doc)
group->addChild(m_doc.get(), std::unique_ptr<QSvgNode>(node), someId(attributes));
}
}
break;
case QSvgNode::Text:
case QSvgNode::Textarea:
if (localName == QLatin1String("tspan")) {
node = method(m_nodes.top(), attributes, this);
if (node) {
static_cast<QSvgText *>(m_nodes.top())->addTspan(static_cast<QSvgTspan *>(node));
}
} else {
const QByteArray msg = QByteArrayLiteral("\'text\' or \'textArea\' element contains invalid element type.");
qCWarning(lcSvgHandler, "%s", prefixMessage(msg, xml).constData());
}
break;
default:
const QByteArray msg = QByteArrayLiteral("Could not add child element to parent element because the types are incorrect.");
qCWarning(lcSvgHandler, "%s", prefixMessage(msg, xml).constData());
break;
}
if (node) {
parseCoreNode(node, attributes);
parseStyle(node, attributes, this);
if (node->type() == QSvgNode::Text || node->type() == QSvgNode::Textarea) {
static_cast<QSvgText *>(node)->setWhitespaceMode(m_whitespaceMode.top());
} else if (node->type() == QSvgNode::Tspan) {
static_cast<QSvgTspan *>(node)->setWhitespaceMode(m_whitespaceMode.top());
} else if (node->type() == QSvgNode::Use) {
auto useNode = static_cast<QSvgUse *>(node);
if (!useNode->isResolved())
m_toBeResolved.append(useNode);
}
}
} else if (FactoryMethod method = findFilterFactory(localName, options())) {
//filter nodes to be aded to be filtercontainer
Q_ASSERT(!m_nodes.isEmpty());
if (m_nodes.top()->type() == QSvgNode::Filter ||
(m_nodes.top()->type() == QSvgNode::FeMerge && localName == QLatin1String("feMergeNode"))) {
node = method(m_nodes.top(), attributes, this);
if (node) {
QSvgStructureNode *container = static_cast<QSvgStructureNode *>(m_nodes.top());
if (m_doc)
container->addChild(m_doc.get(), std::unique_ptr<QSvgNode>(node), someId(attributes));
}
} else {
const QByteArray msg = QByteArrayLiteral("Could not add child element to parent element because the types are incorrect.");
qCWarning(lcSvgHandler, "%s", prefixMessage(msg, xml).constData());
}
} else if (AnimationMethod method = findAnimationFactory(localName, options())) {
Q_ASSERT(!m_nodes.isEmpty());
node = method(m_nodes.top(), attributes, this);
if (node) {
QSvgAnimateNode *anim = static_cast<QSvgAnimateNode *>(node);
if (anim->linkId().isEmpty())
m_doc->animator()->appendAnimation(m_nodes.top(), anim);
else if (m_doc->namedNode(anim->linkId()))
m_doc->animator()->appendAnimation(m_doc->namedNode(anim->linkId()), anim);
else
m_toBeResolved.append(anim);
}
} else if (ParseMethod method = findUtilFactory(localName, options())) {
Q_ASSERT(!m_nodes.isEmpty());
if (method(m_nodes.top(), attributes, this)) {
if (method == parseStyleNode)
return true;
} else {
qCWarning(lcSvgHandler, "%s", msgProblemParsing(localName, xml).constData());
}
} else if (FontFactoryMethod method = findFontFactoryMethod(localName)) {
QSvgFontPtr font = method(attributes, this);
if (font) {
m_currentSvgFontData.font = std::move(font);
} else {
const QByteArray msg = QByteArrayLiteral("Could not parse node: ") + localName.toLocal8Bit();
qCWarning(lcSvgHandler, "%s", prefixMessage(msg, xml).constData());
}
} else if (PaintServerFactoryMethod method = findPaintServerFactoryMethod(localName)) {
QSvgPaintServerSharedPtr paintServer = method(attributes, this);
if (paintServer) {
m_paintServer = paintServer;
m_doc->addPaintServer(std::move(paintServer), someId(attributes));
} else {
const QByteArray msg = QByteArrayLiteral("Could not parse node: ") + localName.toLocal8Bit();
qCWarning(lcSvgHandler, "%s", prefixMessage(msg, xml).constData());
}
} else if (FontParseMethod method = findFontParseFactoryMethod(localName)) {
if (m_currentSvgFontData.font) {
if (!method(m_currentSvgFontData.font.get(), attributes, this))
qCWarning(lcSvgHandler, "%s", msgProblemParsing(localName, xml).constData());
}
} else if (PaintServerParseMethod method = findPaintServerUtilFactoryMethod(localName)) {
if (m_paintServer) {
if (!method(m_paintServer.get(), attributes, this))
qCWarning(lcSvgHandler, "%s", msgProblemParsing(localName, xml).constData());
}
} else {
qCDebug(lcSvgHandler) << "Skipping unknown element" << localName;
m_skipNodes.push(Unknown);
return true;
}
if (node) {
m_nodes.push(node);
m_skipNodes.push(Graphics);
} else {
//qDebug()<<"Skipping "<<localName;
m_skipNodes.push(Style);
}
return true;
}
bool QSvgHandler::endElement(const QStringView localName)
{
CurrentNode node = m_skipNodes.top();
if (node == Doc && localName != QLatin1String("svg"))
return false;
m_skipNodes.pop();
m_whitespaceMode.pop();
popColor();
if (node == Unknown)
return false;
if (node == Graphics)
m_nodes.pop();
if (localName == "font"_L1) {
if (!m_currentSvgFontData.isEmpty()) {
document()->addSvgFont(m_currentSvgFontData.fontFamily,
std::move(m_currentSvgFontData.font));
}
m_currentSvgFontData.reset();
}
return ((localName == QLatin1String("svg")) && (node != Doc));
}
void QSvgHandler::resolvePaintServers()
{
for (QSvgStyleProperty *prop : std::as_const(m_unresolvedStyles)) {
if (prop->type() == QSvgStyleProperty::Fill) {
QSvgFillStyle *fill = static_cast<QSvgFillStyle *>(prop);
QString id = fill->paintStyleId();
QSvgPaintServerSharedPtr paintServer = m_doc->paintServer(id);
if (paintServer) {
fill->setPaintServer(std::move(paintServer));
} else {
qCWarning(lcSvgHandler, "%s", msgCouldNotResolveProperty(id, xml).constData());
fill->setBrush(Qt::NoBrush);
}
} else if (prop->type() == QSvgStyleProperty::Stroke) {
QSvgStrokeStyle *stroke = static_cast<QSvgStrokeStyle *>(prop);
QString id = stroke->paintStyleId();
QSvgPaintServerSharedPtr paintServer = m_doc->paintServer(id);
if (paintServer) {
stroke->setPaintServer(std::move(paintServer));
} else {
qCWarning(lcSvgHandler, "%s", msgCouldNotResolveProperty(id, xml).constData());
stroke->setStroke(Qt::NoBrush);
}
}
}
m_unresolvedStyles.clear();
}
void QSvgHandler::resolveNodes()
{
for (QSvgNode *node : std::as_const(m_toBeResolved)) {
if (node->type() == QSvgNode::Use) {
QSvgUse *useNode = static_cast<QSvgUse *>(node);
const auto parent = useNode->parent();
if (!parent)
continue;
QSvgNode::Type t = parent->type();
if (t != QSvgNode::Doc && t != QSvgNode::Defs && t != QSvgNode::Group && t != QSvgNode::Switch)
continue;
QSvgNode *link = m_doc->namedNode(useNode->linkId());
if (!link) {
qCWarning(lcSvgHandler, "link #%s is undefined!", qPrintable(useNode->linkId()));
continue;
}
if (useNode->parent()->isDescendantOf(link))
qCWarning(lcSvgHandler, "link #%s is recursive!", qPrintable(useNode->linkId()));
useNode->setLink(link);
} else if (node->type() == QSvgNode::Filter) {
QSvgFilterContainer *filter = static_cast<QSvgFilterContainer *>(node);
for (auto &renderer : filter->renderers()) {
const QSvgFeFilterPrimitive *primitive = QSvgFeFilterPrimitive::castToFilterPrimitive(renderer.get());
if (!primitive || primitive->type() == QSvgNode::FeUnsupported) {
filter->setSupported(false);
break;
}
}
} else if (node->type() == QSvgNode::AnimateTransform || node->type() == QSvgNode::AnimateColor) {
QSvgAnimateNode *anim = static_cast<QSvgAnimateNode *>(node);
QSvgNode *targetNode = m_doc->namedNode(anim->linkId());
if (targetNode) {
m_doc->animator()->appendAnimation(targetNode, anim);
} else {
qCWarning(lcSvgHandler, "Cannot find target for link #%s!",
qPrintable(anim->linkId()));
delete anim;
}
}
}
m_toBeResolved.clear();
}
bool QSvgHandler::characters(const QStringView str)
{
if (m_skipNodes.isEmpty() || m_skipNodes.top() == Unknown || m_nodes.isEmpty())
return true;
if (m_nodes.top()->type() == QSvgNode::Text || m_nodes.top()->type() == QSvgNode::Textarea) {
static_cast<QSvgText*>(m_nodes.top())->addText(str);
} else if (m_nodes.top()->type() == QSvgNode::Tspan) {
static_cast<QSvgTspan*>(m_nodes.top())->addText(str);
}
return true;
}
QIODevice *QSvgHandler::device() const
{
return xml->device();
}
QSvgDocument *QSvgHandler::document() const
{
return m_doc.get();
}
std::unique_ptr<QSvgDocument> QSvgHandler::takeDocument()
{
return std::move(m_doc);
}
QGuiSvg::LengthType QSvgHandler::defaultCoordinateSystem() const
{
return m_defaultCoords;
}
void QSvgHandler::setDefaultCoordinateSystem(QGuiSvg::LengthType type)
{
m_defaultCoords = type;
}
void QSvgHandler::pushColor(const QColor &color)
{
m_colorStack.push(color);
m_colorTagCount.push(1);
}
void QSvgHandler::pushColorCopy()
{
if (m_colorTagCount.size())
++m_colorTagCount.top();
else
pushColor(Qt::black);
}
void QSvgHandler::popColor()
{
if (m_colorTagCount.size()) {
if (!--m_colorTagCount.top()) {
m_colorStack.pop();
m_colorTagCount.pop();
}
}
}
QColor QSvgHandler::currentColor() const
{
if (!m_colorStack.isEmpty())
return m_colorStack.top();
else
return QColor(0, 0, 0);
}
void QSvgHandler::pushUnresolvedStyle(QSvgStyleProperty *prop)
{
m_unresolvedStyles.append(prop);
}
void QSvgHandler::setCurrentSvgFontFamily(QStringView family)
{
m_currentSvgFontData.fontFamily = family.toString();
}
#ifndef QT_NO_CSSPARSER
QSvgCssHandler &QSvgHandler::cssHandler()
{
return m_cssHandler;
}
#endif // QT_NO_CSSPARSER
bool QSvgHandler::processingInstruction(const QStringView target, const QStringView data)
{
#ifdef QT_NO_CSSPARSER
Q_UNUSED(target);
Q_UNUSED(data);
#else
if (target == QLatin1String("xml-stylesheet")) {
static const QRegularExpression rx(QStringLiteral("type=\\\"(.+)\\\""),
QRegularExpression::InvertedGreedinessOption);
QRegularExpressionMatchIterator iter = rx.globalMatchView(data);
bool isCss = false;
while (iter.hasNext()) {
QRegularExpressionMatch match = iter.next();
QString type = match.captured(1);
if (type.toLower() == QLatin1String("text/css")) {
isCss = true;
}
}
if (isCss) {
static const QRegularExpression rx(QStringLiteral("href=\\\"(.+)\\\""),
QRegularExpression::InvertedGreedinessOption);
QRegularExpressionMatch match = rx.matchView(data);
QString addr = match.captured(1);
QFileInfo fi(addr);
//qDebug()<<"External CSS file "<<fi.absoluteFilePath()<<fi.exists();
if (fi.exists()) {
QFile file(fi.absoluteFilePath());
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
return true;
}
QByteArray cssData = file.readAll();
QString css = QString::fromUtf8(cssData);
m_cssHandler.parseStyleSheet(css);
}
}
}
#endif
return true;
}
void QSvgHandler::readStyle()
{
#ifndef QT_NO_CSSPARSER
QString css = xml->readElementText();
m_cssHandler.parseStyleSheet(css);
#else
xml->skipCurrentElement();
#endif
}
void QSvgHandler::setAnimPeriod(int start, int end)
{
Q_UNUSED(start);
m_animEnd = qMax(end, m_animEnd);
}
int QSvgHandler::animationDuration() const
{
return m_animEnd;
}
QSvgHandler::~QSvgHandler()
= default;
QT_END_NAMESPACE