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// Copyright (C) 2020 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:significant reason:default
#include <QtPrintSupport/qtprintsupportglobal.h>
#ifndef QT_NO_PRINTER
#include "qprintengine_win_p.h"
#include <limits.h>
#include <private/qprinter_p.h>
#include <private/qfont_p.h>
#include <private/qfontengine_p.h>
#include <private/qpainter_p.h>
#if QT_CONFIG(directwrite)
# include <private/qwindowsfontenginedirectwrite_p.h>
#endif
#include <qpa/qplatformprintplugin.h>
#include <qpa/qplatformprintersupport.h>
#include <qbitmap.h>
#include <qdebug.h>
#include <qlist.h>
#include <qpicture.h>
#include <qpa/qplatformpixmap.h>
#include <private/qpicture_p.h>
#include <private/qpixmap_raster_p.h>
#include <QtCore/QMetaType>
#include <QtCore/qt_windows.h>
#include <QtGui/qpagelayout.h>
#include <QtGui/private/qpixmap_win_p.h>
QT_BEGIN_NAMESPACE
extern QPainterPath qt_regionToPath(const QRegion ®ion);
extern QMarginsF qt_convertMargins(const QMarginsF &margins, QPageLayout::Unit fromUnits, QPageLayout::Unit toUnits);
// #define QT_DEBUG_DRAW
// #define QT_DEBUG_METRICS
static void draw_text_item_win(const QPointF &_pos, const QTextItemInt &ti, HDC hdc,
const QTransform &xform, const QPointF &topLeft);
QWin32PrintEngine::QWin32PrintEngine(QPrinter::PrinterMode mode, const QString &deviceId)
: QAlphaPaintEngine(*(new QWin32PrintEnginePrivate),
PaintEngineFeatures(PrimitiveTransform
| PixmapTransform
| PerspectiveTransform
| PainterPaths
| Antialiasing
| PaintOutsidePaintEvent))
{
Q_D(QWin32PrintEngine);
d->mode = mode;
QPlatformPrinterSupport *ps = QPlatformPrinterSupportPlugin::get();
if (ps)
d->m_printDevice = ps->createPrintDevice(deviceId.isEmpty() ? ps->defaultPrintDeviceId() : deviceId);
d->m_pageLayout.setPageSize(d->m_printDevice.defaultPageSize());
d->initialize();
}
static QByteArray msgBeginFailed(const char *function, const DOCINFO &d)
{
QString result;
QTextStream str(&result);
str << "QWin32PrintEngine::begin: " << function << " failed";
if (d.lpszDocName && d.lpszDocName[0])
str << ", document \"" << QString::fromWCharArray(d.lpszDocName) << '"';
if (d.lpszOutput && d.lpszOutput[0])
str << ", file \"" << QString::fromWCharArray(d.lpszOutput) << '"';
return std::move(result).toLocal8Bit();
}
bool QWin32PrintEngine::begin(QPaintDevice *pdev)
{
Q_D(QWin32PrintEngine);
QAlphaPaintEngine::begin(pdev);
if (!continueCall())
return true;
if (d->reinit) {
d->resetDC();
d->reinit = false;
d->updateMetrics();
}
// ### set default colors and stuff...
bool ok = d->state == QPrinter::Idle;
if (!d->hdc)
return false;
d->devMode->dmCopies = d->num_copies;
DOCINFO di;
memset(&di, 0, sizeof(DOCINFO));
di.cbSize = sizeof(DOCINFO);
if (d->docName.isEmpty())
di.lpszDocName = L"document1";
else
di.lpszDocName = reinterpret_cast<const wchar_t *>(d->docName.utf16());
if (d->printToFile && !d->fileName.isEmpty())
di.lpszOutput = reinterpret_cast<const wchar_t *>(d->fileName.utf16());
if (d->printToFile)
di.lpszOutput = d->fileName.isEmpty() ? L"FILE:" : reinterpret_cast<const wchar_t *>(d->fileName.utf16());
if (ok && StartDoc(d->hdc, &di) == SP_ERROR) {
qErrnoWarning(msgBeginFailed("StartDoc", di));
ok = false;
}
if (StartPage(d->hdc) <= 0) {
qErrnoWarning(msgBeginFailed("StartPage", di));
ok = false;
}
if (!ok) {
d->state = QPrinter::Idle;
} else {
d->state = QPrinter::Active;
}
d->matrix = QTransform();
d->has_pen = true;
d->pen = QColor(Qt::black);
d->has_brush = false;
d->complex_xform = false;
updateMatrix(d->matrix);
if (!ok)
cleanUp();
#ifdef QT_DEBUG_METRICS
qDebug("QWin32PrintEngine::begin()");
d->debugMetrics();
#endif // QT_DEBUG_METRICS
return ok;
}
bool QWin32PrintEngine::end()
{
Q_D(QWin32PrintEngine);
if (d->hdc) {
if (d->state == QPrinter::Aborted) {
cleanUp();
AbortDoc(d->hdc);
return true;
}
}
QAlphaPaintEngine::end();
if (!continueCall())
return true;
if (d->hdc) {
if (EndPage(d->hdc) <= 0) // end; printing done
qErrnoWarning("QWin32PrintEngine::end: EndPage failed (%p)", d->hdc);
if (EndDoc(d->hdc) <= 0)
qErrnoWarning("QWin32PrintEngine::end: EndDoc failed");
}
d->state = QPrinter::Idle;
d->reinit = true;
return true;
}
bool QWin32PrintEngine::newPage()
{
Q_D(QWin32PrintEngine);
Q_ASSERT(isActive());
Q_ASSERT(d->hdc);
flushAndInit();
bool transparent = GetBkMode(d->hdc) == TRANSPARENT;
if (EndPage(d->hdc) <= 0) {
qErrnoWarning("QWin32PrintEngine::newPage: EndPage failed");
return false;
}
if (d->reinit) {
if (!d->resetDC())
return false;
d->reinit = false;
d->updateMetrics();
}
if (StartPage(d->hdc) <= 0) {
qErrnoWarning("Win32PrintEngine::newPage: StartPage failed");
return false;
}
SetTextAlign(d->hdc, TA_BASELINE);
if (transparent)
SetBkMode(d->hdc, TRANSPARENT);
#ifdef QT_DEBUG_METRICS
qDebug("QWin32PrintEngine::newPage()");
d->debugMetrics();
#endif // QT_DEBUG_METRICS
// ###
return true;
bool success = false;
if (d->hdc && d->state == QPrinter::Active) {
if (EndPage(d->hdc) > 0) {
// reinitialize the DC before StartPage if needed,
// because resetdc is disabled between calls to the StartPage and EndPage functions
// (see StartPage documentation in the Platform SDK:Windows GDI)
// state = PST_ACTIVEDOC;
// reinit();
// state = PST_ACTIVE;
// start the new page now
if (d->reinit) {
if (!d->resetDC())
qErrnoWarning("QWin32PrintEngine::newPage(), ResetDC failed (2)");
d->reinit = false;
}
success = (StartPage(d->hdc) > 0);
if (!success)
qErrnoWarning("Win32PrintEngine::newPage: StartPage failed (2)");
}
if (!success) {
d->state = QPrinter::Aborted;
return false;
}
}
return true;
}
bool QWin32PrintEngine::abort()
{
// do nothing loop.
return false;
}
void QWin32PrintEngine::drawTextItem(const QPointF &p, const QTextItem &textItem)
{
Q_D(const QWin32PrintEngine);
QAlphaPaintEngine::drawTextItem(p, textItem);
if (!continueCall())
return;
const QTextItemInt &ti = static_cast<const QTextItemInt &>(textItem);
QRgb brushColor = state->pen().brush().color().rgb();
bool fallBack = state->pen().brush().style() != Qt::SolidPattern
|| qAlpha(brushColor) != 0xff
|| d->txop >= QTransform::TxProject
|| !d->embed_fonts;
if (!fallBack) {
bool deleteFont = false;
HFONT hfont = nullptr;
if (ti.fontEngine->type() == QFontEngine::Win) {
hfont = static_cast<HFONT>(ti.fontEngine->handle());
}
#if QT_CONFIG(directwrite)
else if (ti.fontEngine->type() == QFontEngine::DirectWrite) {
QWindowsFontEngineDirectWrite *fedw = static_cast<QWindowsFontEngineDirectWrite *>(ti.fontEngine);
hfont = fedw->createHFONT();
if (hfont)
deleteFont = true;
}
#endif
if (hfont) {
// Try selecting the font to see if we get a substitution font
SelectObject(d->hdc, hfont);
if (GetDeviceCaps(d->hdc, TECHNOLOGY) != DT_CHARSTREAM) {
LOGFONT logFont;
GetObject(hfont, sizeof(LOGFONT), &logFont);
wchar_t n[64];
GetTextFace(d->hdc, 64, n);
fallBack = QString::fromWCharArray(n)
!= QString::fromWCharArray(logFont.lfFaceName);
if (deleteFont)
DeleteObject(hfont);
}
} else {
fallBack = true;
}
}
if (fallBack) {
QPaintEngine::drawTextItem(p, textItem);
return ;
}
COLORREF cf = RGB(qRed(brushColor), qGreen(brushColor), qBlue(brushColor));
SelectObject(d->hdc, CreateSolidBrush(cf));
SelectObject(d->hdc, CreatePen(PS_SOLID, 1, cf));
SetTextColor(d->hdc, cf);
draw_text_item_win(p, ti, d->hdc, d->matrix, QPointF(0.0, 0.0));
DeleteObject(SelectObject(d->hdc,GetStockObject(HOLLOW_BRUSH)));
DeleteObject(SelectObject(d->hdc,GetStockObject(BLACK_PEN)));
}
int QWin32PrintEngine::metric(QPaintDevice::PaintDeviceMetric m) const
{
Q_D(const QWin32PrintEngine);
if (!d->hdc)
return 0;
int val;
int res = d->resolution;
switch (m) {
case QPaintDevice::PdmWidth:
val = d->m_paintRectPixels.width();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::metric(PdmWidth) = " << val;
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
case QPaintDevice::PdmHeight:
val = d->m_paintRectPixels.height();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::metric(PdmHeight) = " << val;
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
case QPaintDevice::PdmDpiX:
val = res;
break;
case QPaintDevice::PdmDpiY:
val = res;
break;
case QPaintDevice::PdmPhysicalDpiX:
val = GetDeviceCaps(d->hdc, LOGPIXELSX);
break;
case QPaintDevice::PdmPhysicalDpiY:
val = GetDeviceCaps(d->hdc, LOGPIXELSY);
break;
case QPaintDevice::PdmWidthMM:
val = d->m_paintSizeMM.width();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::metric(PdmWidthMM) = " << val;
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
case QPaintDevice::PdmHeightMM:
val = d->m_paintSizeMM.height();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::metric(PdmHeightMM) = " << val;
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
case QPaintDevice::PdmNumColors:
{
int bpp = GetDeviceCaps(d->hdc, BITSPIXEL);
if (bpp==32)
val = INT_MAX;
else if (bpp<=8)
val = GetDeviceCaps(d->hdc, NUMCOLORS);
else
val = 1 << (bpp * GetDeviceCaps(d->hdc, PLANES));
}
break;
case QPaintDevice::PdmDepth:
val = GetDeviceCaps(d->hdc, PLANES);
break;
case QPaintDevice::PdmDevicePixelRatio:
val = 1;
break;
case QPaintDevice::PdmDevicePixelRatioScaled:
val = 1 * QPaintDevice::devicePixelRatioFScale();
break;
default:
qWarning("QPrinter::metric: Invalid metric command");
return 0;
}
return val;
}
void QWin32PrintEngine::updateState(const QPaintEngineState &state)
{
Q_D(QWin32PrintEngine);
QAlphaPaintEngine::updateState(state);
if (!continueCall())
return;
if (state.state() & DirtyTransform) {
updateMatrix(state.transform());
}
if (state.state() & DirtyPen) {
d->pen = state.pen();
d->has_pen = d->pen.style() != Qt::NoPen && d->pen.isSolid();
}
if (state.state() & DirtyBrush) {
QBrush brush = state.brush();
d->has_brush = brush.style() == Qt::SolidPattern;
d->brush_color = brush.color();
}
if (state.state() & DirtyClipEnabled) {
if (state.isClipEnabled())
updateClipPath(painter()->clipPath(), Qt::ReplaceClip);
else
updateClipPath(QPainterPath(), Qt::NoClip);
}
if (state.state() & DirtyClipPath) {
updateClipPath(state.clipPath(), state.clipOperation());
}
if (state.state() & DirtyClipRegion) {
QRegion clipRegion = state.clipRegion();
QPainterPath clipPath = qt_regionToPath(clipRegion);
updateClipPath(clipPath, state.clipOperation());
}
}
void QWin32PrintEngine::updateClipPath(const QPainterPath &clipPath, Qt::ClipOperation op)
{
Q_D(QWin32PrintEngine);
bool doclip = true;
if (op == Qt::NoClip) {
SelectClipRgn(d->hdc, nullptr);
doclip = false;
}
if (doclip) {
QPainterPath xformed = clipPath * d->matrix;
if (xformed.isEmpty()) {
// QRegion empty(-0x1000000, -0x1000000, 1, 1);
HRGN empty = CreateRectRgn(-0x1000000, -0x1000000, -0x0fffffff, -0x0ffffff);
SelectClipRgn(d->hdc, empty);
DeleteObject(empty);
} else {
d->composeGdiPath(xformed);
const int ops[] = {
-1, // Qt::NoClip, covered above
RGN_COPY, // Qt::ReplaceClip
RGN_AND, // Qt::IntersectClip
RGN_OR // Qt::UniteClip
};
Q_ASSERT(op > 0 && unsigned(op) <= sizeof(ops) / sizeof(int));
SelectClipPath(d->hdc, ops[op]);
}
}
QPainterPath aclip = qt_regionToPath(alphaClipping());
if (!aclip.isEmpty()) {
QTransform tx(d->stretch_x, 0, 0, d->stretch_y, d->origin_x, d->origin_y);
d->composeGdiPath(tx.map(aclip));
SelectClipPath(d->hdc, RGN_DIFF);
}
}
void QWin32PrintEngine::updateMatrix(const QTransform &m)
{
Q_D(QWin32PrintEngine);
QTransform stretch(d->stretch_x, 0, 0, d->stretch_y, d->origin_x, d->origin_y);
d->painterMatrix = m;
d->matrix = d->painterMatrix * stretch;
d->txop = d->matrix.type();
d->complex_xform = (d->txop > QTransform::TxScale)
//or is TxScale and inverted
|| (d->txop == QTransform::TxScale
&& (d->matrix.m11() < 0 || d->matrix.m22() < 0));
}
enum HBitmapFormat
{
HBitmapNoAlpha,
HBitmapPremultipliedAlpha,
HBitmapAlpha
};
void QWin32PrintEngine::drawPixmap(const QRectF &targetRect,
const QPixmap &originalPixmap,
const QRectF &sourceRect)
{
Q_D(QWin32PrintEngine);
QAlphaPaintEngine::drawPixmap(targetRect, originalPixmap, sourceRect);
if (!continueCall())
return;
const int tileSize = 2048;
QRectF r = targetRect;
QRectF sr = sourceRect;
QPixmap pixmap = originalPixmap;
if (sr.size() != pixmap.size()) {
pixmap = pixmap.copy(sr.toRect());
}
qreal scaleX = 1.0f;
qreal scaleY = 1.0f;
QTransform scaleMatrix = QTransform::fromScale(r.width() / pixmap.width(), r.height() / pixmap.height());
QTransform adapted = QPixmap::trueMatrix(d->painterMatrix * scaleMatrix,
pixmap.width(), pixmap.height());
qreal xform_offset_x = adapted.dx();
qreal xform_offset_y = adapted.dy();
if (d->complex_xform) {
pixmap = pixmap.transformed(adapted);
scaleX = d->stretch_x;
scaleY = d->stretch_y;
} else {
scaleX = d->stretch_x * (r.width() / pixmap.width()) * d->painterMatrix.m11();
scaleY = d->stretch_y * (r.height() / pixmap.height()) * d->painterMatrix.m22();
}
QPointF topLeft = r.topLeft() * d->painterMatrix;
int tx = int(topLeft.x() * d->stretch_x + d->origin_x);
int ty = int(topLeft.y() * d->stretch_y + d->origin_y);
int tw = qAbs(int(pixmap.width() * scaleX));
int th = qAbs(int(pixmap.height() * scaleY));
xform_offset_x *= d->stretch_x;
xform_offset_y *= d->stretch_y;
int dc_state = SaveDC(d->hdc);
int tilesw = pixmap.width() / tileSize;
int tilesh = pixmap.height() / tileSize;
++tilesw;
++tilesh;
int txinc = tileSize*scaleX;
int tyinc = tileSize*scaleY;
for (int y = 0; y < tilesh; ++y) {
int tposy = ty + (y * tyinc);
int imgh = tileSize;
int height = tyinc;
if (y == (tilesh - 1)) {
imgh = pixmap.height() - (y * tileSize);
height = (th - (y * tyinc));
}
for (int x = 0; x < tilesw; ++x) {
int tposx = tx + (x * txinc);
int imgw = tileSize;
int width = txinc;
if (x == (tilesw - 1)) {
imgw = pixmap.width() - (x * tileSize);
width = (tw - (x * txinc));
}
QImage img(QSize(imgw, imgh), QImage::Format_RGB32);
img.setDevicePixelRatio(pixmap.devicePixelRatio());
img.fill(Qt::white);
QPainter painter(&img);
painter.drawPixmap(0,0, pixmap, tileSize * x, tileSize * y, imgw, imgh);
QPixmap p = QPixmap::fromImage(img);
HBITMAP hbitmap = qt_pixmapToWinHBITMAP(p, HBitmapNoAlpha);
HDC hbitmap_hdc = CreateCompatibleDC(d->hdc);
HGDIOBJ null_bitmap = SelectObject(hbitmap_hdc, hbitmap);
if (!StretchBlt(d->hdc, qRound(tposx - xform_offset_x), qRound(tposy - xform_offset_y), width, height,
hbitmap_hdc, 0, 0, p.width(), p.height(), SRCCOPY))
qErrnoWarning("QWin32PrintEngine::drawPixmap, StretchBlt failed");
SelectObject(hbitmap_hdc, null_bitmap);
DeleteObject(hbitmap);
DeleteDC(hbitmap_hdc);
}
}
RestoreDC(d->hdc, dc_state);
}
void QWin32PrintEngine::drawTiledPixmap(const QRectF &r, const QPixmap &pm, const QPointF &pos)
{
Q_D(QWin32PrintEngine);
QAlphaPaintEngine::drawTiledPixmap(r, pm, pos);
if (!continueCall())
return;
if (d->complex_xform || !pos.isNull()) {
QPaintEngine::drawTiledPixmap(r, pm, pos);
} else {
int dc_state = SaveDC(d->hdc);
HBITMAP hbitmap = qt_pixmapToWinHBITMAP(pm, HBitmapNoAlpha);
HDC hbitmap_hdc = CreateCompatibleDC(d->hdc);
HGDIOBJ null_bitmap = SelectObject(hbitmap_hdc, hbitmap);
QRectF trect = d->painterMatrix.mapRect(r);
int tx = int(trect.left() * d->stretch_x + d->origin_x);
int ty = int(trect.top() * d->stretch_y + d->origin_y);
int xtiles = int(trect.width() / pm.width()) + 1;
int ytiles = int(trect.height() / pm.height()) + 1;
int xinc = int(pm.width() * d->stretch_x);
int yinc = int(pm.height() * d->stretch_y);
for (int y = 0; y < ytiles; ++y) {
int ity = ty + (yinc * y);
int ith = pm.height();
if (y == (ytiles - 1)) {
ith = int(trect.height() - (pm.height() * y));
}
for (int x = 0; x < xtiles; ++x) {
int itx = tx + (xinc * x);
int itw = pm.width();
if (x == (xtiles - 1)) {
itw = int(trect.width() - (pm.width() * x));
}
if (!StretchBlt(d->hdc, itx, ity, int(itw * d->stretch_x), int(ith * d->stretch_y),
hbitmap_hdc, 0, 0, itw, ith, SRCCOPY))
qErrnoWarning("QWin32PrintEngine::drawPixmap, StretchBlt failed");
}
}
SelectObject(hbitmap_hdc, null_bitmap);
DeleteObject(hbitmap);
DeleteDC(hbitmap_hdc);
RestoreDC(d->hdc, dc_state);
}
}
void QWin32PrintEnginePrivate::composeGdiPath(const QPainterPath &path)
{
if (!BeginPath(hdc))
qErrnoWarning("QWin32PrintEnginePrivate::drawPath: BeginPath failed");
// Drawing the subpaths
int start = -1;
for (int i=0; i<path.elementCount(); ++i) {
const QPainterPath::Element &elm = path.elementAt(i);
switch (elm.type) {
case QPainterPath::MoveToElement:
if (start >= 0
&& path.elementAt(start).x == path.elementAt(i-1).x
&& path.elementAt(start).y == path.elementAt(i-1).y)
CloseFigure(hdc);
start = i;
MoveToEx(hdc, qRound(elm.x), qRound(elm.y), 0);
break;
case QPainterPath::LineToElement:
LineTo(hdc, qRound(elm.x), qRound(elm.y));
break;
case QPainterPath::CurveToElement: {
POINT pts[3] = {
{ qRound(elm.x), qRound(elm.y) },
{ qRound(path.elementAt(i+1).x), qRound(path.elementAt(i+1).y) },
{ qRound(path.elementAt(i+2).x), qRound(path.elementAt(i+2).y) }
};
i+=2;
PolyBezierTo(hdc, pts, 3);
break;
}
default:
qFatal("QWin32PaintEngine::drawPath: Unhandled type: %d", elm.type);
}
}
if (start >= 0
&& path.elementAt(start).x == path.elementAt(path.elementCount()-1).x
&& path.elementAt(start).y == path.elementAt(path.elementCount()-1).y)
CloseFigure(hdc);
if (!EndPath(hdc))
qErrnoWarning("QWin32PaintEngine::drawPath: EndPath failed");
SetPolyFillMode(hdc, path.fillRule() == Qt::WindingFill ? WINDING : ALTERNATE);
}
void QWin32PrintEnginePrivate::fillPath_dev(const QPainterPath &path, const QColor &color)
{
#ifdef QT_DEBUG_DRAW
qDebug() << " --- QWin32PrintEnginePrivate::fillPath() bound:" << path.boundingRect() << color;
#endif
composeGdiPath(path);
HBRUSH brush = CreateSolidBrush(RGB(color.red(), color.green(), color.blue()));
HGDIOBJ old_brush = SelectObject(hdc, brush);
FillPath(hdc);
DeleteObject(SelectObject(hdc, old_brush));
}
void QWin32PrintEnginePrivate::strokePath_dev(const QPainterPath &path, const QColor &color, qreal penWidth)
{
composeGdiPath(path);
LOGBRUSH brush;
brush.lbStyle = BS_SOLID;
brush.lbColor = RGB(color.red(), color.green(), color.blue());
DWORD capStyle = PS_ENDCAP_SQUARE;
DWORD joinStyle = PS_JOIN_BEVEL;
if (pen.capStyle() == Qt::FlatCap)
capStyle = PS_ENDCAP_FLAT;
else if (pen.capStyle() == Qt::RoundCap)
capStyle = PS_ENDCAP_ROUND;
if (pen.joinStyle() == Qt::MiterJoin)
joinStyle = PS_JOIN_MITER;
else if (pen.joinStyle() == Qt::RoundJoin)
joinStyle = PS_JOIN_ROUND;
HPEN pen = ExtCreatePen(PS_GEOMETRIC | PS_SOLID | capStyle | joinStyle,
(penWidth == 0) ? 1 : penWidth, &brush, 0, nullptr);
HGDIOBJ old_pen = SelectObject(hdc, pen);
StrokePath(hdc);
DeleteObject(SelectObject(hdc, old_pen));
}
void QWin32PrintEnginePrivate::fillPath(const QPainterPath &path, const QColor &color)
{
fillPath_dev(path * matrix, color);
}
void QWin32PrintEnginePrivate::strokePath(const QPainterPath &path, const QColor &color)
{
QPainterPathStroker stroker;
if (pen.style() == Qt::CustomDashLine) {
stroker.setDashPattern(pen.dashPattern());
stroker.setDashOffset(pen.dashOffset());
} else {
stroker.setDashPattern(pen.style());
}
stroker.setCapStyle(pen.capStyle());
stroker.setJoinStyle(pen.joinStyle());
stroker.setMiterLimit(pen.miterLimit());
QPainterPath stroke;
qreal width = pen.widthF();
bool cosmetic = pen.isCosmetic();
if (pen.style() == Qt::SolidLine && (cosmetic || matrix.type() < QTransform::TxScale)) {
strokePath_dev(path * matrix, color, width);
} else {
stroker.setWidth(width);
if (cosmetic) {
stroke = stroker.createStroke(path * matrix);
} else {
stroke = stroker.createStroke(path) * painterMatrix;
QTransform stretch(stretch_x, 0, 0, stretch_y, origin_x, origin_y);
stroke = stroke * stretch;
}
if (stroke.isEmpty())
return;
fillPath_dev(stroke, color);
}
}
void QWin32PrintEngine::drawPath(const QPainterPath &path)
{
#ifdef QT_DEBUG_DRAW
qDebug() << " - QWin32PrintEngine::drawPath(), bounds: " << path.boundingRect();
#endif
Q_D(QWin32PrintEngine);
QAlphaPaintEngine::drawPath(path);
if (!continueCall())
return;
if (d->has_brush)
d->fillPath(path, d->brush_color);
if (d->has_pen)
d->strokePath(path, d->pen.color());
}
void QWin32PrintEngine::drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode)
{
#ifdef QT_DEBUG_DRAW
qDebug() << " - QWin32PrintEngine::drawPolygon(), pointCount: " << pointCount;
#endif
QAlphaPaintEngine::drawPolygon(points, pointCount, mode);
if (!continueCall())
return;
Q_ASSERT(pointCount > 1);
QPainterPath path(points[0]);
for (int i=1; i<pointCount; ++i) {
path.lineTo(points[i]);
}
Q_D(QWin32PrintEngine);
bool has_brush = d->has_brush;
if (mode == PolylineMode)
d->has_brush = false; // No brush for polylines
else
path.closeSubpath(); // polygons are should always be closed.
drawPath(path);
d->has_brush = has_brush;
}
QWin32PrintEnginePrivate::~QWin32PrintEnginePrivate()
{
release();
}
void QWin32PrintEnginePrivate::initialize()
{
release();
Q_ASSERT(!hPrinter);
Q_ASSERT(!hdc);
Q_ASSERT(!devMode);
Q_ASSERT(!pInfo);
if (!m_printDevice.isValid())
return;
txop = QTransform::TxNone;
QString printerName = m_printDevice.id();
bool ok = OpenPrinter(reinterpret_cast<LPWSTR>(const_cast<ushort *>(printerName.utf16())),
reinterpret_cast<LPHANDLE>(&hPrinter), nullptr);
if (!ok) {
qErrnoWarning("QWin32PrintEngine::initialize: OpenPrinter failed");
return;
}
// Fetch the PRINTER_INFO_2 with DEVMODE data containing the
// printer settings.
DWORD infoSize, numBytes;
GetPrinter(hPrinter, 2, nullptr, 0, &infoSize);
hMem = GlobalAlloc(GHND, infoSize);
pInfo = reinterpret_cast<PRINTER_INFO_2*>(GlobalLock(hMem));
ok = GetPrinter(hPrinter, 2, reinterpret_cast<LPBYTE>(pInfo), infoSize, &numBytes);
if (!ok) {
qErrnoWarning("QWin32PrintEngine::initialize: GetPrinter failed");
release();
return;
}
devMode = pInfo->pDevMode;
if (!devMode) {
// pInfo->pDevMode == NULL for some printers and passing NULL
// into CreateDC leads to the printer doing nothing. In addition,
// the framework assumes that devMode isn't NULL, such as in
// QWin32PrintEngine::begin() and QPageSetupDialog::exec()
// Attempt to get the DEVMODE a different way.
// Allocate the required buffer
auto *lpwPrinterName = reinterpret_cast<LPWSTR>(const_cast<ushort *>(printerName.utf16()));
LONG result = DocumentProperties(nullptr, hPrinter, lpwPrinterName,
nullptr, nullptr, 0);
devMode = reinterpret_cast<DEVMODE *>(malloc(result));
initializeDevMode(devMode);
ownsDevMode = true;
// Get the default DevMode
result = DocumentProperties(nullptr, hPrinter, lpwPrinterName,
devMode, nullptr, DM_OUT_BUFFER);
if (result != IDOK) {
qErrnoWarning("QWin32PrintEngine::initialize: Failed to obtain devMode");
free(devMode);
devMode = nullptr;
ownsDevMode = false;
}
}
hdc = CreateDC(nullptr, reinterpret_cast<LPCWSTR>(printerName.utf16()),
nullptr, devMode);
if (!hdc) {
qErrnoWarning("QWin32PrintEngine::initialize: CreateDC failed");
release();
return;
}
Q_ASSERT(hPrinter);
Q_ASSERT(pInfo);
initHDC();
if (devMode) {
num_copies = devMode->dmCopies;
devMode->dmCollate = DMCOLLATE_TRUE;
updatePageLayout();
}
#if defined QT_DEBUG_DRAW || defined QT_DEBUG_METRICS
qDebug("QWin32PrintEngine::initialize()");
debugMetrics();
#endif // QT_DEBUG_DRAW || QT_DEBUG_METRICS
}
void QWin32PrintEnginePrivate::initializeDevMode(DEVMODE *devMode)
{
memset(devMode, 0, sizeof(DEVMODE));
devMode->dmSize = sizeof(DEVMODE);
devMode->dmSpecVersion = DM_SPECVERSION;
}
void QWin32PrintEnginePrivate::initHDC()
{
Q_ASSERT(hdc);
HDC display_dc = GetDC(nullptr);
dpi_x = GetDeviceCaps(hdc, LOGPIXELSX);
dpi_y = GetDeviceCaps(hdc, LOGPIXELSY);
dpi_display = GetDeviceCaps(display_dc, LOGPIXELSY);
ReleaseDC(nullptr, display_dc);
if (dpi_display == 0) {
qWarning("QWin32PrintEngine::metric: GetDeviceCaps() failed, "
"might be a driver problem");
dpi_display = 96; // Reasonable default
}
switch(mode) {
case QPrinter::ScreenResolution:
resolution = dpi_display;
stretch_x = dpi_x / double(dpi_display);
stretch_y = dpi_y / double(dpi_display);
break;
case QPrinter::PrinterResolution:
case QPrinter::HighResolution:
resolution = dpi_y;
stretch_x = 1;
stretch_y = 1;
break;
default:
break;
}
updateMetrics();
}
void QWin32PrintEnginePrivate::release()
{
if (globalDevMode) { // Devmode comes from print dialog
GlobalUnlock(globalDevMode);
} else if (hMem) {
GlobalUnlock(hMem);
GlobalFree(hMem);
}
if (hPrinter)
ClosePrinter(hPrinter);
if (hdc)
DeleteDC(hdc);
// Check if devMode was allocated separately from pInfo / hMem.
if (ownsDevMode)
free(devMode);
hdc = nullptr;
hPrinter = nullptr;
pInfo = nullptr;
hMem = nullptr;
devMode = nullptr;
ownsDevMode = false;
}
void QWin32PrintEnginePrivate::doReinit()
{
if (state == QPrinter::Active) {
reinit = true;
} else {
resetDC();
reinit = false;
updateMetrics();
}
}
bool QWin32PrintEnginePrivate::resetDC()
{
if (!hdc) {
qWarning("ResetDC() called with null hdc.");
return false;
}
const HDC oldHdc = hdc;
const HDC hdc = ResetDC(oldHdc, devMode);
if (!hdc) {
const int lastError = GetLastError();
qErrnoWarning(lastError, "ResetDC() on %p failed (%d)", oldHdc, lastError);
}
return hdc != 0;
}
static int indexOfId(const QList<QPrint::InputSlot> &inputSlots, QPrint::InputSlotId id)
{
for (int i = 0; i < inputSlots.size(); ++i) {
if (inputSlots.at(i).id == id)
return i;
}
return -1;
}
static int indexOfWindowsId(const QList<QPrint::InputSlot> &inputSlots, int windowsId)
{
for (int i = 0; i < inputSlots.size(); ++i) {
if (inputSlots.at(i).windowsId == windowsId)
return i;
}
return -1;
}
void QWin32PrintEngine::setProperty(PrintEnginePropertyKey key, const QVariant &value)
{
Q_D(QWin32PrintEngine);
switch (key) {
// The following keys are properties or derived values and so cannot be set
case PPK_PageRect:
break;
case PPK_PaperRect:
break;
case PPK_PaperSources:
break;
case PPK_SupportsMultipleCopies:
break;
case PPK_SupportedResolutions:
break;
// The following keys are settings that are unsupported by the Windows PrintEngine
case PPK_CustomBase:
break;
case PPK_PageOrder:
break;
case PPK_PrinterProgram:
break;
case PPK_SelectionOption:
break;
// The following keys are properties and settings that are supported by the Windows PrintEngine
case PPK_FontEmbedding:
d->embed_fonts = value.toBool();
break;
case PPK_CollateCopies:
{
if (!d->devMode)
break;
d->devMode->dmCollate = value.toBool() ? DMCOLLATE_TRUE : DMCOLLATE_FALSE;
d->devMode->dmFields |= DM_COLLATE;
d->doReinit();
}
break;
case PPK_ColorMode:
{
if (!d->devMode)
break;
d->devMode->dmColor = (value.toInt() == QPrinter::Color) ? DMCOLOR_COLOR : DMCOLOR_MONOCHROME;
d->devMode->dmFields |= DM_COLOR;
d->doReinit();
}
break;
case PPK_Creator:
d->m_creator = value.toString();
break;
case PPK_DocumentName:
if (isActive()) {
qWarning("QWin32PrintEngine: Cannot change document name while printing is active");
return;
}
d->docName = value.toString();
break;
case PPK_Duplex: {
if (!d->devMode)
break;
QPrint::DuplexMode mode = QPrint::DuplexMode(value.toInt());
if (mode == property(PPK_Duplex).toInt() || !d->m_printDevice.supportedDuplexModes().contains(mode))
break;
switch (mode) {
case QPrint::DuplexNone:
d->devMode->dmDuplex = DMDUP_SIMPLEX;
d->devMode->dmFields |= DM_DUPLEX;
break;
case QPrint::DuplexAuto:
d->devMode->dmDuplex = d->m_pageLayout.orientation() == QPageLayout::Landscape ? DMDUP_HORIZONTAL : DMDUP_VERTICAL;
d->devMode->dmFields |= DM_DUPLEX;
break;
case QPrint::DuplexLongSide:
d->devMode->dmDuplex = DMDUP_VERTICAL;
d->devMode->dmFields |= DM_DUPLEX;
break;
case QPrint::DuplexShortSide:
d->devMode->dmDuplex = DMDUP_HORIZONTAL;
d->devMode->dmFields |= DM_DUPLEX;
break;
default:
// Don't change
break;
}
d->doReinit();
break;
}
case PPK_FullPage:
if (value.toBool())
d->m_pageLayout.setMode(QPageLayout::FullPageMode);
else
d->m_pageLayout.setMode(QPageLayout::StandardMode);
d->updateMetrics();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_FullPage," << value.toBool() << + ")";
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
case PPK_CopyCount:
case PPK_NumberOfCopies:
if (!d->devMode)
break;
d->num_copies = value.toInt();
d->devMode->dmCopies = d->num_copies;
d->devMode->dmFields |= DM_COPIES;
d->doReinit();
break;
case PPK_Orientation: {
if (!d->devMode)
break;
QPageLayout::Orientation orientation = QPageLayout::Orientation(value.toInt());
d->devMode->dmOrientation = orientation == QPageLayout::Landscape ? DMORIENT_LANDSCAPE : DMORIENT_PORTRAIT;
d->devMode->dmFields |= DM_ORIENTATION;
d->m_pageLayout.setOrientation(orientation);
d->doReinit();
d->updateMetrics();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_Orientation," << orientation << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
}
case PPK_OutputFileName:
if (isActive()) {
qWarning("QWin32PrintEngine: Cannot change filename while printing");
} else {
d->fileName = value.toString();
d->printToFile = !value.toString().isEmpty();
}
break;
case PPK_PageSize: {
if (!d->devMode)
break;
const QPageSize pageSize = QPageSize(QPageSize::PageSizeId(value.toInt()));
if (pageSize.isValid()) {
d->setPageSize(pageSize);
d->doReinit();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_PageSize," << value.toInt() << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
}
break;
}
case PPK_PaperName: {
if (!d->devMode)
break;
// Get the named page size from the printer if supported
const QPageSize pageSize = d->m_printDevice.supportedPageSize(value.toString());
if (pageSize.isValid()) {
d->setPageSize(pageSize);
d->doReinit();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_PaperName," << value.toString() << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
}
break;
}
case PPK_PaperSource: {
if (!d->devMode)
break;
const auto inputSlots = d->m_printDevice.supportedInputSlots();
const int paperSource = value.toInt();
const int index = paperSource >= DMBIN_USER ?
indexOfWindowsId(inputSlots, paperSource) : indexOfId(inputSlots, QPrint::InputSlotId(paperSource));
d->devMode->dmDefaultSource = index >= 0 ? inputSlots.at(index).windowsId : DMBIN_AUTO;
d->doReinit();
break;
}
case PPK_PrinterName: {
QString id = value.toString();
QPlatformPrinterSupport *ps = QPlatformPrinterSupportPlugin::get();
if (!ps)
return;
QVariant pageSize = QVariant::fromValue(d->m_pageLayout.pageSize());
const bool isFullPage = (d->m_pageLayout.mode() == QPageLayout::FullPageMode);
QVariant orientation = QVariant::fromValue(d->m_pageLayout.orientation());
QVariant margins = QVariant::fromValue(
std::pair<QMarginsF, QPageLayout::Unit>(d->m_pageLayout.margins(), d->m_pageLayout.units()));
QPrintDevice printDevice = ps->createPrintDevice(id.isEmpty() ? ps->defaultPrintDeviceId() : id);
if (printDevice.isValid()) {
d->m_printDevice = printDevice;
d->initialize();
if (d->m_printDevice.supportedPageSize(pageSize.value<QPageSize>()).isValid())
setProperty(PPK_QPageSize, pageSize);
else
setProperty(PPK_CustomPaperSize, pageSize.value<QPageSize>().size(QPageSize::Point));
setProperty(PPK_FullPage, QVariant(isFullPage));
setProperty(PPK_Orientation, orientation);
setProperty(PPK_QPageMargins, margins);
}
break;
}
case PPK_Resolution: {
d->resolution = value.toInt();
d->stretch_x = d->dpi_x / double(d->resolution);
d->stretch_y = d->dpi_y / double(d->resolution);
d->updateMetrics();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_Resolution," << value.toInt() << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
}
case PPK_WindowsPageSize: {
if (!d->devMode)
break;
const QPageSize pageSize = QPageSize(QPageSize::id(value.toInt()));
if (pageSize.isValid()) {
d->setPageSize(pageSize);
d->doReinit();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_WindowsPageSize," << value.toInt() << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
}
break;
}
case PPK_CustomPaperSize: {
if (!d->devMode)
break;
const QPageSize pageSize = QPageSize(value.toSizeF(), QPageSize::Point);
if (pageSize.isValid()) {
d->setPageSize(pageSize);
d->doReinit();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_CustomPaperSize," << value.toSizeF() << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
}
break;
}
case PPK_PageMargins: {
QList<QVariant> margins(value.toList());
Q_ASSERT(margins.size() == 4);
d->m_pageLayout.setUnits(QPageLayout::Point);
d->m_pageLayout.setMargins(QMarginsF(margins.at(0).toReal(), margins.at(1).toReal(),
margins.at(2).toReal(), margins.at(3).toReal()),
QPageLayout::OutOfBoundsPolicy::Clamp);
d->updateMetrics();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_PageMargins," << margins << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
}
case PPK_QPageSize: {
if (!d->devMode)
break;
// Get the page size from the printer if supported
const QPageSize pageSize = value.value<QPageSize>();
if (pageSize.isValid()) {
d->setPageSize(pageSize);
d->doReinit();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_QPageSize," << pageSize << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
}
break;
}
case PPK_QPageMargins: {
auto pair = value.value<std::pair<QMarginsF, QPageLayout::Unit>>();
d->m_pageLayout.setUnits(pair.second);
d->m_pageLayout.setMargins(pair.first, QPageLayout::OutOfBoundsPolicy::Clamp);
d->updateMetrics();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_QPageMargins," << pair.first << pair.second << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
break;
}
case PPK_QPageLayout: {
QPageLayout pageLayout = value.value<QPageLayout>();
if (pageLayout.isValid() && d->m_printDevice.isValidPageLayout(pageLayout, d->resolution)) {
setProperty(PPK_QPageSize, QVariant::fromValue(pageLayout.pageSize()));
setProperty(PPK_FullPage, pageLayout.mode() == QPageLayout::FullPageMode);
setProperty(PPK_Orientation, QVariant::fromValue(pageLayout.orientation()));
d->m_pageLayout.setUnits(pageLayout.units());
d->m_pageLayout.setMargins(pageLayout.margins(), QPageLayout::OutOfBoundsPolicy::Clamp);
d->updateMetrics();
#ifdef QT_DEBUG_METRICS
qDebug() << "QWin32PrintEngine::setProperty(PPK_QPageLayout," << pageLayout << ')';
d->debugMetrics();
#endif // QT_DEBUG_METRICS
}
break;
}
// No default so that compiler will complain if new keys added and not handled in this engine
}
}
QVariant QWin32PrintEngine::property(PrintEnginePropertyKey key) const
{
Q_D(const QWin32PrintEngine);
QVariant value;
switch (key) {
// The following keys are settings that are unsupported by the Windows PrintEngine
// Return sensible default values to ensure consistent behavior across platforms
case PPK_PageOrder:
value = QPrinter::FirstPageFirst;
break;
case PPK_PrinterProgram:
value = QString();
break;
case PPK_SelectionOption:
value = QString();
break;
// The following keys are properties and settings that are supported by the Windows PrintEngine
case PPK_FontEmbedding:
value = d->embed_fonts;
break;
case PPK_CollateCopies:
if (!d->devMode)
value = false;
else
value = d->devMode->dmCollate == DMCOLLATE_TRUE;
break;
case PPK_ColorMode:
{
if (!d->devMode) {
value = QPrinter::Color;
} else {
value = (d->devMode->dmColor == DMCOLOR_COLOR) ? QPrinter::Color : QPrinter::GrayScale;
}
}
break;
case PPK_Creator:
value = d->m_creator;
break;
case PPK_DocumentName:
value = d->docName;
break;
case PPK_Duplex: {
if (!d->devMode) {
value = QPrinter::DuplexNone;
} else {
switch (d->devMode->dmDuplex) {
case DMDUP_VERTICAL:
value = QPrinter::DuplexLongSide;
break;
case DMDUP_HORIZONTAL:
value = QPrinter::DuplexShortSide;
break;
case DMDUP_SIMPLEX:
default:
value = QPrinter::DuplexNone;
break;
}
}
break;
}
case PPK_FullPage:
value = d->m_pageLayout.mode() == QPageLayout::FullPageMode;
break;
case PPK_CopyCount:
value = d->num_copies;
break;
case PPK_SupportsMultipleCopies:
value = true;
break;
case PPK_NumberOfCopies:
value = 1;
break;
case PPK_Orientation:
value = d->m_pageLayout.orientation();
break;
case PPK_OutputFileName:
value = d->fileName;
break;
case PPK_PageRect:
// PageRect is returned in device pixels
value = d->m_pageLayout.paintRectPixels(d->resolution);
break;
case PPK_PageSize:
value = d->m_pageLayout.pageSize().id();
break;
case PPK_PaperRect:
// PaperRect is returned in device pixels
value = d->m_pageLayout.fullRectPixels(d->resolution);
break;
case PPK_PaperName:
value = d->m_pageLayout.pageSize().name();
break;
case PPK_PaperSource:
if (!d->devMode) {
value = d->m_printDevice.defaultInputSlot().id;
} else {
if (d->devMode->dmDefaultSource >= DMBIN_USER) {
value = int(d->devMode->dmDefaultSource);
} else {
const auto inputSlots = d->m_printDevice.supportedInputSlots();
const int index = indexOfWindowsId(inputSlots, d->devMode->dmDefaultSource);
value = index >= 0 ? inputSlots.at(index).id : QPrint::Auto;
}
}
break;
case PPK_PrinterName:
value = d->m_printDevice.id();
break;
case PPK_Resolution:
if (d->resolution || d->m_printDevice.isValid())
value = d->resolution;
break;
case PPK_SupportedResolutions: {
QList<QVariant> list;
const auto resolutions = d->m_printDevice.supportedResolutions();
list.reserve(resolutions.size());
for (int resolution : resolutions)
list << resolution;
value = list;
break;
}
case PPK_WindowsPageSize:
value = d->m_pageLayout.pageSize().windowsId();
break;
case PPK_PaperSources: {
QList<QVariant> out;
const auto inputSlots = d->m_printDevice.supportedInputSlots();
out.reserve(inputSlots.size());
for (const QPrint::InputSlot &inputSlot : inputSlots)
out << QVariant(inputSlot.id == QPrint::CustomInputSlot ? inputSlot.windowsId : int(inputSlot.id));
value = out;
break;
}
case PPK_CustomPaperSize:
value = d->m_pageLayout.fullRectPoints().size();
break;
case PPK_PageMargins: {
QList<QVariant> list;
QMarginsF margins = d->m_pageLayout.margins(QPageLayout::Point);
list << margins.left() << margins.top() << margins.right() << margins.bottom();
value = list;
break;
}
case PPK_QPageSize:
value.setValue(d->m_pageLayout.pageSize());
break;
case PPK_QPageMargins: {
std::pair<QMarginsF, QPageLayout::Unit> pair(d->m_pageLayout.margins(), d->m_pageLayout.units());
value.setValue(pair);
break;
}
case PPK_QPageLayout:
value.setValue(d->m_pageLayout);
break;
case PPK_CustomBase:
break;
// No default so that compiler will complain if new keys added and not handled in this engine
}
return value;
}
QPrinter::PrinterState QWin32PrintEngine::printerState() const
{
return d_func()->state;
}
HDC QWin32PrintEngine::getDC() const
{
return d_func()->hdc;
}
void QWin32PrintEngine::releaseDC(HDC) const
{
}
HGLOBAL *QWin32PrintEngine::createGlobalDevNames()
{
Q_D(QWin32PrintEngine);
const size_t size = sizeof(DEVNAMES) + d->m_printDevice.id().length() * 2 + 2;
auto hGlobal = reinterpret_cast<HGLOBAL *>(GlobalAlloc(GMEM_MOVEABLE, size));
auto dn = reinterpret_cast<DEVNAMES*>(GlobalLock(hGlobal));
dn->wDriverOffset = 0;
dn->wDeviceOffset = sizeof(DEVNAMES) / sizeof(wchar_t);
dn->wOutputOffset = 0;
memcpy(reinterpret_cast<ushort*>(dn) + dn->wDeviceOffset,
d->m_printDevice.id().utf16(), d->m_printDevice.id().length() * 2 + 2);
dn->wDefault = 0;
GlobalUnlock(hGlobal);
return hGlobal;
}
void QWin32PrintEngine::setGlobalDevMode(HGLOBAL globalDevNames, HGLOBAL globalDevMode)
{
Q_D(QWin32PrintEngine);
if (globalDevNames) {
auto dn = reinterpret_cast<DEVNAMES*>(GlobalLock(globalDevNames));
const QString id =
QString::fromWCharArray(reinterpret_cast<const wchar_t*>(dn) + dn->wDeviceOffset);
QPlatformPrinterSupport *ps = QPlatformPrinterSupportPlugin::get();
if (ps)
d->m_printDevice = ps->createPrintDevice(id.isEmpty() ? ps->defaultPrintDeviceId() : id);
GlobalUnlock(globalDevNames);
}
if (globalDevMode) {
auto dm = reinterpret_cast<DEVMODE*>(GlobalLock(globalDevMode));
d->release();
d->globalDevMode = globalDevMode;
if (d->ownsDevMode) {
free(d->devMode);
d->ownsDevMode = false;
}
d->devMode = dm;
d->hdc = CreateDC(nullptr, reinterpret_cast<LPCWSTR>(d->m_printDevice.id().utf16()), nullptr, dm);
d->num_copies = d->devMode->dmCopies;
d->updatePageLayout();
if (!OpenPrinter((wchar_t*)d->m_printDevice.id().utf16(), &d->hPrinter, 0))
qWarning("QPrinter: OpenPrinter() failed after reading DEVMODE.");
}
if (d->hdc)
d->initHDC();
#if defined QT_DEBUG_DRAW || defined QT_DEBUG_METRICS
qDebug("QWin32PrintEngine::setGlobalDevMode()");
d->debugMetrics();
#endif // QT_DEBUG_DRAW || QT_DEBUG_METRICS
}
HGLOBAL QWin32PrintEngine::globalDevMode()
{
Q_D(QWin32PrintEngine);
return d->globalDevMode;
}
void QWin32PrintEnginePrivate::setPageSize(const QPageSize &pageSize)
{
if (!pageSize.isValid())
return;
Q_ASSERT(devMode);
// Use the printer page size if supported
const QPageSize printerPageSize = m_printDevice.supportedPageSize(pageSize);
const QPageSize usePageSize = printerPageSize.isValid() ? printerPageSize : pageSize;
const QMarginsF printable = m_printDevice.printableMargins(usePageSize, m_pageLayout.orientation(), resolution);
m_pageLayout.setPageSize(usePageSize, qt_convertMargins(printable, QPageLayout::Point, m_pageLayout.units()));
// Setup if Windows custom size, i.e. not a known Windows ID
if (printerPageSize.isValid()) {
has_custom_paper_size = false;
devMode->dmPaperSize = m_pageLayout.pageSize().windowsId();
devMode->dmFields &= ~(DM_PAPERLENGTH | DM_PAPERWIDTH);
devMode->dmPaperWidth = 0;
devMode->dmPaperLength = 0;
} else {
has_custom_paper_size = true;
devMode->dmPaperSize = DMPAPER_USER;
devMode->dmFields |= DM_PAPERLENGTH | DM_PAPERWIDTH;
// Size in tenths of a millimeter
const QSizeF sizeMM = m_pageLayout.pageSize().size(QPageSize::Millimeter);
devMode->dmPaperWidth = qRound(sizeMM.width() * 10.0);
devMode->dmPaperLength = qRound(sizeMM.height() * 10.0);
}
updateMetrics();
}
// Update the page layout after any changes made to devMode
void QWin32PrintEnginePrivate::updatePageLayout()
{
Q_ASSERT(devMode);
// Update orientation first as is needed to obtain printable margins when changing page size
m_pageLayout.setOrientation(devMode->dmOrientation == DMORIENT_LANDSCAPE ? QPageLayout::Landscape : QPageLayout::Portrait);
if (devMode->dmPaperSize >= DMPAPER_LAST) {
// Is a custom size
// Check if it is using the Postscript Custom Size first
bool hasCustom = false;
int feature = PSIDENT_GDICENTRIC;
if (ExtEscape(hdc, POSTSCRIPT_IDENTIFY,
sizeof(DWORD), reinterpret_cast<LPCSTR>(&feature), 0, 0) >= 0) {
PSFEATURE_CUSTPAPER custPaper;
feature = FEATURESETTING_CUSTPAPER;
if (ExtEscape(hdc, GET_PS_FEATURESETTING, sizeof(INT), reinterpret_cast<LPCSTR>(&feature),
sizeof(custPaper), reinterpret_cast<LPSTR>(&custPaper)) > 0) {
// If orientation is 1 and width/height is 0 then it's not really custom
if (!(custPaper.lOrientation == 1 && custPaper.lWidth == 0 && custPaper.lHeight == 0)) {
if (custPaper.lOrientation == 0 || custPaper.lOrientation == 2)
m_pageLayout.setOrientation(QPageLayout::Portrait);
else
m_pageLayout.setOrientation(QPageLayout::Landscape);
QPageSize pageSize = QPageSize(QSizeF(custPaper.lWidth, custPaper.lHeight),
QPageSize::Point);
setPageSize(pageSize);
hasCustom = true;
}
}
}
if (!hasCustom) {
QPageSize pageSize = QPageSize(QSizeF(devMode->dmPaperWidth / 10.0f, devMode->dmPaperLength / 10.0f),
QPageSize::Millimeter);
setPageSize(pageSize);
}
} else {
// Is a supported size
setPageSize(QPageSize(QPageSize::id(devMode->dmPaperSize)));
}
updateMetrics();
}
// Update the cached page paint metrics whenever page layout is changed
void QWin32PrintEnginePrivate::updateMetrics()
{
m_paintRectPixels = m_pageLayout.paintRectPixels(resolution);
qreal pageScaleX = 1;
qreal pageScaleY = 1;
// Some print devices allow scaling, so that "virtual" page size != current paper size.
// Skip this scaling for custom page sizes, since the driver may not report the custom
// dimensions via GetDeviceCaps, which would incorrectly squash the paint rect to the
// default paper size (QTBUG-142745).
if (!has_custom_paper_size) {
const int devWidth = GetDeviceCaps(hdc, PHYSICALWIDTH);
const int devHeight = GetDeviceCaps(hdc, PHYSICALHEIGHT);
const int pageWidth = m_pageLayout.fullRectPixels(dpi_x).width();
const int pageHeight = m_pageLayout.fullRectPixels(dpi_y).height();
pageScaleX = (devWidth && pageWidth) ? qreal(devWidth) / pageWidth : 1;
pageScaleY = (devHeight && pageHeight) ? qreal(devHeight) / pageHeight : 1;
m_paintRectPixels = QTransform::fromScale(pageScaleX, pageScaleY).mapRect(m_paintRectPixels);
}
QSizeF sizeMM = m_pageLayout.paintRect(QPageLayout::Millimeter).size();
m_paintSizeMM = QSize(qRound(sizeMM.width()), qRound(sizeMM.height()));
// Calculate the origin using the physical device pixels, not our paint pixels
// Origin is defined as User Margins - Device Margins
const bool isFullPage = (m_pageLayout.mode() == QPageLayout::FullPageMode);
const QMarginsF margins = isFullPage ? QMarginsF() : (m_pageLayout.margins(QPageLayout::Millimeter) / 25.4);
origin_x = qRound(pageScaleX * margins.left() * dpi_x) - GetDeviceCaps(hdc, PHYSICALOFFSETX);
origin_y = qRound(pageScaleY * margins.top() * dpi_y) - GetDeviceCaps(hdc, PHYSICALOFFSETY);
}
void QWin32PrintEnginePrivate::debugMetrics() const
{
qDebug() << " " << "m_pageLayout = " << m_pageLayout;
qDebug() << " " << "m_paintRectPixels = " << m_paintRectPixels;
qDebug() << " " << "m_paintSizeMM = " << m_paintSizeMM;
qDebug() << " " << "resolution = " << resolution;
qDebug() << " " << "stretch = " << stretch_x << stretch_y;
qDebug() << " " << "origin = " << origin_x << origin_y;
qDebug() << " " << "dpi = " << dpi_x << dpi_y;
qDebug() << "";
}
static void draw_text_item_win(const QPointF &pos, const QTextItemInt &ti, HDC hdc,
const QTransform &xform, const QPointF &topLeft)
{
QPointF baseline_pos = xform.inverted().map(xform.map(pos) - topLeft);
SetTextAlign(hdc, TA_BASELINE);
SetBkMode(hdc, TRANSPARENT);
const bool has_kerning = ti.f && ti.f->kerning();
HFONT hfont = nullptr;
bool deleteFont = false;
if (ti.fontEngine->type() == QFontEngine::Win) {
if (ti.fontEngine->supportsTransformation(QTransform::fromScale(0.5, 0.5))) // is TrueType font?
hfont = static_cast<HFONT>(ti.fontEngine->handle());
}
#if QT_CONFIG(directwrite)
else if (ti.fontEngine->type() == QFontEngine::DirectWrite) {
QWindowsFontEngineDirectWrite *fedw = static_cast<QWindowsFontEngineDirectWrite *>(ti.fontEngine);
hfont = fedw->createHFONT();
if (hfont)
deleteFont = true;
}
#endif
if (!hfont)
hfont = (HFONT)GetStockObject(ANSI_VAR_FONT);
HGDIOBJ old_font = SelectObject(hdc, hfont);
unsigned int options = ETO_GLYPH_INDEX;
QGlyphLayout glyphs = ti.glyphs;
bool fast = !has_kerning && !(ti.flags & QTextItem::RightToLeft);
for (int i = 0; fast && i < glyphs.numGlyphs; i++) {
if (glyphs.offsets[i].x != 0 || glyphs.offsets[i].y != 0 || glyphs.justifications[i].space_18d6 != 0
|| glyphs.attributes[i].dontPrint) {
fast = false;
break;
}
}
// Scale, rotate and translate here.
XFORM win_xform;
win_xform.eM11 = xform.m11();
win_xform.eM12 = xform.m12();
win_xform.eM21 = xform.m21();
win_xform.eM22 = xform.m22();
win_xform.eDx = xform.dx();
win_xform.eDy = xform.dy();
SetGraphicsMode(hdc, GM_ADVANCED);
SetWorldTransform(hdc, &win_xform);
if (fast) {
// fast path
QVarLengthArray<wchar_t> g(glyphs.numGlyphs);
for (int i = 0; i < glyphs.numGlyphs; ++i)
g[i] = glyphs.glyphs[i];
ExtTextOut(hdc,
qRound(baseline_pos.x() + glyphs.offsets[0].x.toReal()),
qRound(baseline_pos.y() + glyphs.offsets[0].y.toReal()),
options, 0, g.constData(), glyphs.numGlyphs, 0);
} else {
QVarLengthArray<QFixedPoint> positions;
QVarLengthArray<glyph_t> _glyphs;
QTransform matrix = QTransform::fromTranslate(baseline_pos.x(), baseline_pos.y());
ti.fontEngine->getGlyphPositions(ti.glyphs, matrix, ti.flags,
_glyphs, positions);
if (_glyphs.isEmpty()) {
SelectObject(hdc, old_font);
return;
}
options |= ETO_PDY;
QVarLengthArray<INT> glyphDistances(_glyphs.size() * 2);
QVarLengthArray<wchar_t> g(_glyphs.size());
const int lastGlyph = _glyphs.size() - 1;
for (int i = 0; i < lastGlyph; ++i) {
glyphDistances[i * 2] = qRound(positions[i + 1].x) - qRound(positions[i].x);
glyphDistances[i * 2 + 1] = qRound(positions[i + 1].y) - qRound(positions[i].y);
g[i] = _glyphs[i];
}
glyphDistances[lastGlyph * 2] = 0;
glyphDistances[lastGlyph * 2 + 1] = 0;
g[lastGlyph] = _glyphs[lastGlyph];
ExtTextOut(hdc, qRound(positions[0].x), qRound(positions[0].y), options, nullptr,
g.constData(), _glyphs.size(),
glyphDistances.data());
}
win_xform.eM11 = win_xform.eM22 = 1.0;
win_xform.eM12 = win_xform.eM21 = win_xform.eDx = win_xform.eDy = 0.0;
SetWorldTransform(hdc, &win_xform);
SelectObject(hdc, old_font);
if (deleteFont)
DeleteObject(hfont);
}
QT_END_NAMESPACE
#endif // QT_NO_PRINTER