diff options
Diffstat (limited to 'src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp')
| -rw-r--r-- | src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp | 405 |
1 files changed, 262 insertions, 143 deletions
diff --git a/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp b/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp index 4c39560cbe..c13f0f333a 100644 --- a/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp +++ b/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp @@ -5,36 +5,28 @@ ** ** This file is part of the plugins of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:LGPL$ +** $QT_BEGIN_LICENSE:LGPL21$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** General Public License version 2.1 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** rights. These rights are described in the Digia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** ** $QT_END_LICENSE$ ** ****************************************************************************/ @@ -48,11 +40,12 @@ #include "qwindowsdirect2ddevicecontext.h" #include "qwindowsfontengine.h" -#include "qwindowsfontenginedirectwrite.h" #include "qwindowsfontdatabase.h" #include "qwindowsintegration.h" +#include <QtCore/QtMath> #include <QtCore/QStack> +#include <QtCore/QSettings> #include <QtGui/private/qpaintengine_p.h> #include <QtGui/private/qtextengine_p.h> #include <QtGui/private/qfontengine_p.h> @@ -109,6 +102,16 @@ static inline ID2D1Factory1 *factory() return QWindowsDirect2DContext::instance()->d2dFactory(); } +static inline D2D1_MATRIX_3X2_F transformFromLine(const QLineF &line, qreal penWidth) +{ + const qreal halfWidth = penWidth / 2; + const qreal angle = -qDegreesToRadians(line.angle()); + QTransform transform = QTransform::fromTranslate(line.p1().x() + qSin(angle) * halfWidth, + line.p1().y() - qCos(angle) * halfWidth); + transform.rotateRadians(angle); + return to_d2d_matrix_3x2_f(transform); +} + class Direct2DPathGeometryWriter { public: @@ -226,9 +229,10 @@ class QWindowsDirect2DPaintEnginePrivate : public QPaintEngineExPrivate { Q_DECLARE_PUBLIC(QWindowsDirect2DPaintEngine) public: - QWindowsDirect2DPaintEnginePrivate(QWindowsDirect2DBitmap *bm) + QWindowsDirect2DPaintEnginePrivate(QWindowsDirect2DBitmap *bm, QWindowsDirect2DPaintEngine::Flags flags) : bitmap(bm) , clipFlags(0) + , flags(flags) { pen.reset(); brush.reset(); @@ -237,25 +241,29 @@ public: } QWindowsDirect2DBitmap *bitmap; + QImage fallbackImage; unsigned int clipFlags; QStack<ClipType> pushedClips; + QWindowsDirect2DPaintEngine::Flags flags; QPointF currentBrushOrigin; - QHash< QFont, ComPtr<IDWriteFontFace> > fontCache; + QHash< QFontDef, ComPtr<IDWriteFontFace> > fontCache; struct { bool emulate; QPen qpen; ComPtr<ID2D1Brush> brush; ComPtr<ID2D1StrokeStyle1> strokeStyle; + ComPtr<ID2D1BitmapBrush1> dashBrush; inline void reset() { emulate = false; qpen = QPen(); brush.Reset(); strokeStyle.Reset(); + dashBrush.Reset(); } } pen; @@ -291,6 +299,14 @@ public: : D2D1_ANTIALIAS_MODE_ALIASED; } + inline D2D1_LAYER_OPTIONS1 layerOptions() const + { + if (flags & QWindowsDirect2DPaintEngine::TranslucentTopLevelWindow) + return D2D1_LAYER_OPTIONS1_NONE; + else + return D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND; + } + void updateTransform(const QTransform &transform) { dc()->SetTransform(to_d2d_matrix_3x2_f(transform)); @@ -336,7 +352,7 @@ public: D2D1::IdentityMatrix(), 1.0, NULL, - D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND), + layerOptions()), NULL); pushedClips.push(LayerClip); } @@ -391,7 +407,10 @@ public: break; default: - qWarning("Unsupported composition mode: %d", mode); + // Activating an unsupported mode at any time will cause the QImage + // fallback to be used for the remainder of the active paint session + dc()->SetPrimitiveBlend(D2D1_PRIMITIVE_BLEND_COPY); + flags |= QWindowsDirect2DPaintEngine::EmulateComposition; break; } } @@ -522,12 +541,31 @@ public: if (props.dashStyle == D2D1_DASH_STYLE_CUSTOM) { QVector<qreal> dashes = newPen.dashPattern(); QVector<FLOAT> converted(dashes.size()); - + qreal penWidth = pen.qpen.widthF(); + qreal brushWidth = 0; for (int i = 0; i < dashes.size(); i++) { converted[i] = dashes[i]; + brushWidth += penWidth * dashes[i]; } hr = factory()->CreateStrokeStyle(props, converted.constData(), converted.size(), &pen.strokeStyle); + + // Create a combined brush/dash pattern for optimized line drawing + QWindowsDirect2DBitmap bitmap; + bitmap.resize(ceil(brushWidth), ceil(penWidth)); + bitmap.deviceContext()->begin(); + bitmap.deviceContext()->get()->SetAntialiasMode(antialiasMode()); + bitmap.deviceContext()->get()->SetTransform(D2D1::IdentityMatrix()); + bitmap.deviceContext()->get()->Clear(); + const qreal offsetX = (qreal(bitmap.size().width()) - brushWidth) / 2; + const qreal offsetY = qreal(bitmap.size().height()) / 2; + bitmap.deviceContext()->get()->DrawLine(D2D1::Point2F(offsetX, offsetY), + D2D1::Point2F(brushWidth, offsetY), + pen.brush.Get(), penWidth, pen.strokeStyle.Get()); + bitmap.deviceContext()->end(); + D2D1_BITMAP_BRUSH_PROPERTIES1 bitmapBrushProperties = D2D1::BitmapBrushProperties1( + D2D1_EXTEND_MODE_WRAP, D2D1_EXTEND_MODE_CLAMP, D2D1_INTERPOLATION_MODE_LINEAR); + hr = dc()->CreateBitmapBrush(bitmap.bitmap(), bitmapBrushProperties, &pen.dashBrush); } else { hr = factory()->CreateStrokeStyle(props, NULL, 0, &pen.strokeStyle); } @@ -836,10 +874,79 @@ public: { dc()->SetAntialiasMode(antialiasMode()); } + + void drawGlyphRun(const D2D1_POINT_2F &pos, + IDWriteFontFace *fontFace, + const QFontDef &fontDef, + int numGlyphs, + const UINT16 *glyphIndices, + const FLOAT *glyphAdvances, + const DWRITE_GLYPH_OFFSET *glyphOffsets, + bool rtl) + { + Q_Q(QWindowsDirect2DPaintEngine); + + DWRITE_GLYPH_RUN glyphRun = { + fontFace, // IDWriteFontFace *fontFace; + fontDef.pixelSize, // FLOAT fontEmSize; + numGlyphs, // UINT32 glyphCount; + glyphIndices, // const UINT16 *glyphIndices; + glyphAdvances, // const FLOAT *glyphAdvances; + glyphOffsets, // const DWRITE_GLYPH_OFFSET *glyphOffsets; + FALSE, // BOOL isSideways; + rtl ? 1 : 0 // UINT32 bidiLevel; + }; + + const bool antiAlias = bool((q->state()->renderHints & QPainter::TextAntialiasing) + && !(fontDef.styleStrategy & QFont::NoAntialias)); + const D2D1_TEXT_ANTIALIAS_MODE antialiasMode = (flags & QWindowsDirect2DPaintEngine::TranslucentTopLevelWindow) + ? D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE : D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE; + dc()->SetTextAntialiasMode(antiAlias ? antialiasMode : D2D1_TEXT_ANTIALIAS_MODE_ALIASED); + + dc()->DrawGlyphRun(pos, + &glyphRun, + NULL, + pen.brush.Get(), + DWRITE_MEASURING_MODE_GDI_CLASSIC); + } + + ComPtr<IDWriteFontFace> fontFaceFromFontEngine(QFontEngine *fe) + { + const QFontDef fontDef = fe->fontDef; + ComPtr<IDWriteFontFace> fontFace = fontCache.value(fontDef); + if (fontFace) + return fontFace; + + LOGFONT lf = QWindowsFontDatabase::fontDefToLOGFONT(fontDef); + + // Get substitute name + static const char keyC[] = "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\FontSubstitutes"; + const QString familyName = QString::fromWCharArray(lf.lfFaceName); + const QString nameSubstitute = QSettings(QLatin1String(keyC), QSettings::NativeFormat).value(familyName, familyName).toString(); + memcpy(lf.lfFaceName, nameSubstitute.utf16(), sizeof(wchar_t) * qMin(nameSubstitute.length() + 1, LF_FACESIZE)); + + ComPtr<IDWriteFont> dwriteFont; + HRESULT hr = QWindowsDirect2DContext::instance()->dwriteGdiInterop()->CreateFontFromLOGFONT(&lf, &dwriteFont); + if (FAILED(hr)) { + qDebug("%s: CreateFontFromLOGFONT failed: %#x", __FUNCTION__, hr); + return fontFace; + } + + hr = dwriteFont->CreateFontFace(&fontFace); + if (FAILED(hr)) { + qDebug("%s: CreateFontFace failed: %#x", __FUNCTION__, hr); + return fontFace; + } + + if (fontFace) + fontCache.insert(fontDef, fontFace); + + return fontFace; + } }; -QWindowsDirect2DPaintEngine::QWindowsDirect2DPaintEngine(QWindowsDirect2DBitmap *bitmap) - : QPaintEngineEx(*(new QWindowsDirect2DPaintEnginePrivate(bitmap))) +QWindowsDirect2DPaintEngine::QWindowsDirect2DPaintEngine(QWindowsDirect2DBitmap *bitmap, Flags flags) + : QPaintEngineEx(*(new QWindowsDirect2DPaintEnginePrivate(bitmap, flags))) { QPaintEngine::PaintEngineFeatures unsupported = // As of 1.1 Direct2D does not natively support complex composition modes @@ -878,7 +985,7 @@ bool QWindowsDirect2DPaintEngine::begin(QPaintDevice * pdev) D2D1::IdentityMatrix(), 1.0, NULL, - D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND), + d->layerOptions()), NULL); } else { QRect clip(0, 0, pdev->width(), pdev->height()); @@ -897,7 +1004,17 @@ bool QWindowsDirect2DPaintEngine::begin(QPaintDevice * pdev) bool QWindowsDirect2DPaintEngine::end() { Q_D(QWindowsDirect2DPaintEngine); - // First pop any user-applied clipping + + // Always clear all emulation-related things so we are in a clean state for our next painting run + const bool emulatingComposition = d->flags.testFlag(EmulateComposition); + d->flags &= ~QWindowsDirect2DPaintEngine::EmulateComposition; + if (!d->fallbackImage.isNull()) { + if (emulatingComposition) + drawImage(d->fallbackImage.rect(), d->fallbackImage, d->fallbackImage.rect()); + d->fallbackImage = QImage(); + } + + // Pop any user-applied clipping d->clearClips(); // Now the system clip from begin() above if (d->clipFlags & SimpleSystemClip) { @@ -906,6 +1023,7 @@ bool QWindowsDirect2DPaintEngine::end() } else { d->dc()->PopLayer(); } + return d->bitmap->deviceContext()->end(); } @@ -1210,7 +1328,12 @@ void QWindowsDirect2DPaintEngine::drawLines(const QLine *lines, int lineCount) D2D1_POINT_2F d2d_p1 = to_d2d_point_2f(p1); D2D1_POINT_2F d2d_p2 = to_d2d_point_2f(p2); - d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.brush.Get(), d->pen.qpen.widthF(), d->pen.strokeStyle.Get()); + if (!d->pen.dashBrush || state()->renderHints.testFlag(QPainter::HighQualityAntialiasing)) { + d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.brush.Get(), d->pen.qpen.widthF(), d->pen.strokeStyle.Get()); + } else { + d->pen.dashBrush->SetTransform(transformFromLine(lines[i], d->pen.qpen.widthF())); + d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.dashBrush.Get(), d->pen.qpen.widthF(), NULL); + } } } } @@ -1246,7 +1369,12 @@ void QWindowsDirect2DPaintEngine::drawLines(const QLineF *lines, int lineCount) D2D1_POINT_2F d2d_p1 = to_d2d_point_2f(p1); D2D1_POINT_2F d2d_p2 = to_d2d_point_2f(p2); - d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.brush.Get(), d->pen.qpen.widthF(), d->pen.strokeStyle.Get()); + if (!d->pen.dashBrush || state()->renderHints.testFlag(QPainter::HighQualityAntialiasing)) { + d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.brush.Get(), d->pen.qpen.widthF(), d->pen.strokeStyle.Get()); + } else { + d->pen.dashBrush->SetTransform(transformFromLine(lines[i], d->pen.qpen.widthF())); + d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.dashBrush.Get(), d->pen.qpen.widthF(), NULL); + } } } } @@ -1335,6 +1463,19 @@ void QWindowsDirect2DPaintEngine::drawPixmap(const QRectF &r, return; } + if (d->flags.testFlag(EmulateComposition)) { + const qreal points[] = { + r.x(), r.y(), + r.x() + r.width(), r.y(), + r.x() + r.width(), r.y() + r.height(), + r.x(), r.y() + r.height() + }; + const QVectorPath vp(points, 4, 0, QVectorPath::RectangleHint); + const QBrush brush(sr.isValid() ? pm.copy(sr.toRect()) : pm); + rasterFill(vp, brush); + return; + } + QWindowsDirect2DPlatformPixmap *pp = static_cast<QWindowsDirect2DPlatformPixmap *>(pm.handle()); QWindowsDirect2DBitmap *bitmap = pp->bitmap(); @@ -1411,7 +1552,7 @@ void QWindowsDirect2DPaintEngine::drawStaticTextItem(QStaticTextItem *staticText return; } - ComPtr<IDWriteFontFace> fontFace = fontFaceFromFontEngine(staticTextItem->font, staticTextItem->fontEngine()); + ComPtr<IDWriteFontFace> fontFace = d->fontFaceFromFontEngine(staticTextItem->fontEngine()); if (!fontFace) { qWarning("%s: Could not find font - falling back to slow text rendering path.", __FUNCTION__); QPaintEngineEx::drawStaticTextItem(staticTextItem); @@ -1432,14 +1573,14 @@ void QWindowsDirect2DPaintEngine::drawStaticTextItem(QStaticTextItem *staticText glyphOffsets[i].ascenderOffset = staticTextItem->glyphPositions[i].y.toReal() * -1; } - drawGlyphRun(D2D1::Point2F(0, 0), - fontFace.Get(), - staticTextItem->font, - staticTextItem->numGlyphs, - glyphIndices.constData(), - glyphAdvances.constData(), - glyphOffsets.constData(), - false); + d->drawGlyphRun(D2D1::Point2F(0, 0), + fontFace.Get(), + staticTextItem->fontEngine()->fontDef, + staticTextItem->numGlyphs, + glyphIndices.constData(), + glyphAdvances.constData(), + glyphOffsets.constData(), + false); } void QWindowsDirect2DPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textItem) @@ -1459,7 +1600,7 @@ void QWindowsDirect2DPaintEngine::drawTextItem(const QPointF &p, const QTextItem return; } - ComPtr<IDWriteFontFace> fontFace = fontFaceFromFontEngine(*ti.f, ti.fontEngine); + ComPtr<IDWriteFontFace> fontFace = d->fontFaceFromFontEngine(ti.fontEngine); if (!fontFace) { qWarning("%s: Could not find font - falling back to slow text rendering path.", __FUNCTION__); QPaintEngine::drawTextItem(p, textItem); @@ -1482,72 +1623,14 @@ void QWindowsDirect2DPaintEngine::drawTextItem(const QPointF &p, const QTextItem const bool rtl = (ti.flags & QTextItem::RightToLeft); const QPointF offset(rtl ? ti.width.toReal() : 0, 0); - drawGlyphRun(to_d2d_point_2f(p + offset), - fontFace.Get(), - ti.font(), - ti.glyphs.numGlyphs, - glyphIndices.constData(), - glyphAdvances.constData(), - glyphOffsets.constData(), - rtl); -} - -inline static FLOAT pointSizeToDIP(qreal pointSize, FLOAT dpiY) -{ - return (pointSize + (pointSize / qreal(3.0))) * (dpiY / 96.0f); -} - -inline static FLOAT pixelSizeToDIP(int pixelSize, FLOAT dpiY) -{ - return FLOAT(pixelSize) * 96.0f / dpiY; -} - -inline static FLOAT fontSizeInDIP(const QFont &font) -{ - FLOAT dpiX, dpiY; - QWindowsDirect2DContext::instance()->d2dFactory()->GetDesktopDpi(&dpiX, &dpiY); - - if (font.pixelSize() == -1) { - // font size was set as points - return pointSizeToDIP(font.pointSizeF(), dpiY); - } else { - // font size was set as pixels - return pixelSizeToDIP(font.pixelSize(), dpiY); - } -} - -void QWindowsDirect2DPaintEngine::drawGlyphRun(const D2D1_POINT_2F &pos, - IDWriteFontFace *fontFace, - const QFont &font, - int numGlyphs, - const UINT16 *glyphIndices, - const FLOAT *glyphAdvances, - const DWRITE_GLYPH_OFFSET *glyphOffsets, - bool rtl) -{ - Q_D(QWindowsDirect2DPaintEngine); - - DWRITE_GLYPH_RUN glyphRun = { - fontFace, // IDWriteFontFace *fontFace; - fontSizeInDIP(font), // FLOAT fontEmSize; - numGlyphs, // UINT32 glyphCount; - glyphIndices, // const UINT16 *glyphIndices; - glyphAdvances, // const FLOAT *glyphAdvances; - glyphOffsets, // const DWRITE_GLYPH_OFFSET *glyphOffsets; - FALSE, // BOOL isSideways; - rtl ? 1 : 0 // UINT32 bidiLevel; - }; - - const bool antiAlias = bool((state()->renderHints & QPainter::TextAntialiasing) - && !(font.styleStrategy() & QFont::NoAntialias)); - d->dc()->SetTextAntialiasMode(antiAlias ? D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE - : D2D1_TEXT_ANTIALIAS_MODE_ALIASED); - - d->dc()->DrawGlyphRun(pos, - &glyphRun, - NULL, - d->pen.brush.Get(), - DWRITE_MEASURING_MODE_GDI_CLASSIC); + d->drawGlyphRun(to_d2d_point_2f(p + offset), + fontFace.Get(), + ti.fontEngine->fontDef, + ti.glyphs.numGlyphs, + glyphIndices.constData(), + glyphAdvances.constData(), + glyphOffsets.constData(), + rtl); } void QWindowsDirect2DPaintEngine::ensureBrush() @@ -1576,9 +1659,17 @@ void QWindowsDirect2DPaintEngine::rasterFill(const QVectorPath &path, const QBru { Q_D(QWindowsDirect2DPaintEngine); - QImage img(d->bitmap->size(), QImage::Format_ARGB32); - img.fill(Qt::transparent); + if (d->fallbackImage.isNull()) { + if (d->flags.testFlag(EmulateComposition)) { + QWindowsDirect2DPaintEngineSuspender suspender(this); + d->fallbackImage = d->bitmap->toImage(); + } else { + d->fallbackImage = QImage(d->bitmap->size(), QImage::Format_ARGB32_Premultiplied); + d->fallbackImage.fill(Qt::transparent); + } + } + QImage &img = d->fallbackImage; QPainter p; QPaintEngine *engine = img.paintEngine(); @@ -1625,11 +1716,14 @@ void QWindowsDirect2DPaintEngine::rasterFill(const QVectorPath &path, const QBru if (!p.end()) qWarning("%s: Paint Engine end returned false", __FUNCTION__); - d->updateClipEnabled(false); - d->updateTransform(QTransform()); - drawImage(img.rect(), img, img.rect()); - transformChanged(); - clipEnabledChanged(); + if (!d->flags.testFlag(EmulateComposition)) { // Emulated fallback will be flattened in end() + d->updateClipEnabled(false); + d->updateTransform(QTransform()); + drawImage(img.rect(), img, img.rect()); + d->fallbackImage = QImage(); + transformChanged(); + clipEnabledChanged(); + } } else { qWarning("%s: Could not fall back to QImage", __FUNCTION__); } @@ -1639,6 +1733,9 @@ bool QWindowsDirect2DPaintEngine::emulationRequired(EmulationType type) const { Q_D(const QWindowsDirect2DPaintEngine); + if (d->flags.testFlag(EmulateComposition)) + return true; + if (!state()->matrix.isAffine()) return true; @@ -1678,49 +1775,71 @@ void QWindowsDirect2DPaintEngine::adjustForAliasing(QPointF *point) (*point) += adjustment; } -Microsoft::WRL::ComPtr<IDWriteFontFace> QWindowsDirect2DPaintEngine::fontFaceFromFontEngine(const QFont &font, QFontEngine *fe) +void QWindowsDirect2DPaintEngine::suspend() { - Q_D(QWindowsDirect2DPaintEngine); + end(); +} - ComPtr<IDWriteFontFace> fontFace = d->fontCache.value(font); - if (fontFace) - return fontFace; +void QWindowsDirect2DPaintEngine::resume() +{ + begin(paintDevice()); + clipEnabledChanged(); + penChanged(); + brushChanged(); + brushOriginChanged(); + opacityChanged(); + compositionModeChanged(); + renderHintsChanged(); + transformChanged(); +} - switch (fe->type()) { - case QFontEngine::Win: +class QWindowsDirect2DPaintEngineSuspenderImpl +{ + Q_DISABLE_COPY(QWindowsDirect2DPaintEngineSuspenderImpl) + QWindowsDirect2DPaintEngine *m_engine; + bool m_active; +public: + QWindowsDirect2DPaintEngineSuspenderImpl(QWindowsDirect2DPaintEngine *engine) + : m_engine(engine) + , m_active(engine->isActive()) { - QWindowsFontEngine *wfe = static_cast<QWindowsFontEngine *>(fe); - QSharedPointer<QWindowsFontEngineData> wfed = wfe->fontEngineData(); - - HGDIOBJ oldfont = wfe->selectDesignFont(); - HRESULT hr = QWindowsDirect2DContext::instance()->dwriteGdiInterop()->CreateFontFaceFromHdc(wfed->hdc, &fontFace); - DeleteObject(SelectObject(wfed->hdc, oldfont)); - if (FAILED(hr)) - qWarning("%s: Could not create DirectWrite fontface from HDC: %#x", __FUNCTION__, hr); - + if (m_active) + m_engine->suspend(); } - break; -#ifndef QT_NO_DIRECTWRITE + ~QWindowsDirect2DPaintEngineSuspenderImpl() + { + if (m_active) + m_engine->resume(); + } +}; - case QFontEngine::DirectWrite: +class QWindowsDirect2DPaintEngineSuspenderPrivate +{ +public: + QWindowsDirect2DPaintEngineSuspenderPrivate(QWindowsDirect2DPaintEngine *engine) + : engineSuspender(engine) + , dcSuspender(static_cast<QWindowsDirect2DPaintEnginePrivate *>(engine->d_ptr.data())->bitmap->deviceContext()) { - QWindowsFontEngineDirectWrite *wfedw = static_cast<QWindowsFontEngineDirectWrite *>(fe); - fontFace = wfedw->directWriteFontFace(); } - break; -#endif // QT_NO_DIRECTWRITE + QWindowsDirect2DPaintEngineSuspenderImpl engineSuspender; + QWindowsDirect2DDeviceContextSuspender dcSuspender; +}; - default: - qWarning("%s: Unknown font engine!", __FUNCTION__); - break; - } +QWindowsDirect2DPaintEngineSuspender::QWindowsDirect2DPaintEngineSuspender(QWindowsDirect2DPaintEngine *engine) + : d_ptr(new QWindowsDirect2DPaintEngineSuspenderPrivate(engine)) +{ + +} - if (fontFace) - d->fontCache.insert(font, fontFace); +QWindowsDirect2DPaintEngineSuspender::~QWindowsDirect2DPaintEngineSuspender() +{ +} - return fontFace; +void QWindowsDirect2DPaintEngineSuspender::resume() +{ + d_ptr.reset(); } QT_END_NAMESPACE |