/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the test suite of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the Technology Preview License Agreement accompanying ** this package. ** ** 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. ** ** In addition, as a special exception, Nokia gives you certain ** additional rights. These rights are described in the Nokia Qt LGPL ** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include #include #include #include #include #include #include #include #if !defined(Q_OS_WINCE) #include #include #ifdef QT3_SUPPORT #include #endif #endif #include #include #include #include #include #include Q_DECLARE_METATYPE(QLine) Q_DECLARE_METATYPE(QRect) Q_DECLARE_METATYPE(QSize) Q_DECLARE_METATYPE(QPoint) Q_DECLARE_METATYPE(QPainterPath) //TESTED_CLASS= //TESTED_FILES= class tst_QPainter : public QObject { Q_OBJECT public: tst_QPainter(); virtual ~tst_QPainter(); public slots: void init(); void cleanup(); private slots: void getSetCheck(); void qt_format_text_clip(); void qt_format_text_boundingRect(); void drawPixmap_comp_data(); void drawPixmap_comp(); void saveAndRestore_data(); void saveAndRestore(); void drawLine_data(); void drawLine(); void drawLine_clipped(); void drawLine_task121143(); void drawLine_task216948(); void drawLine_task190634(); void drawLine_task229459(); void drawLine_task234891(); void drawRect_data() { fillData(); } void drawRect(); void drawRect2(); void fillRect(); void fillRect2(); void fillRect3(); void fillRect4(); void drawEllipse_data(); void drawEllipse(); void drawClippedEllipse_data(); void drawClippedEllipse(); void drawPath_data(); void drawPath(); void drawPath2(); void drawPath3(); void drawRoundRect_data() { fillData(); } void drawRoundRect(); void qimageFormats_data(); void qimageFormats(); void textOnTransparentImage(); void initFrom(); void setWindow(); void combinedMatrix(); void renderHints(); void disableEnableClipping(); void setClipRect(); void setEqualClipRegionAndPath_data(); void setEqualClipRegionAndPath(); void clipRectSaveRestore(); void clippedFillPath_data(); void clippedFillPath(); void clippedLines_data(); void clippedLines(); void clippedPolygon_data(); void clippedPolygon(); void clippedText(); void setOpacity_data(); void setOpacity(); void drawhelper_blend_untransformed_data(); void drawhelper_blend_untransformed(); void drawhelper_blend_tiled_untransformed_data(); void drawhelper_blend_tiled_untransformed(); void porterDuff_warning(); void drawhelper_blend_color(); void childWidgetViewport(); void fillRect_objectBoundingModeGradient(); void fillRect_stretchToDeviceMode(); void monoImages(); void linearGradientSymmetry(); void gradientInterpolation(); void fpe_pixmapTransform(); void fpe_zeroLengthLines(); void fpe_divByZero(); void fpe_steepSlopes_data(); void fpe_steepSlopes(); void fpe_rasterizeLine_task232012(); void fpe_radialGradients(); void rasterizer_asserts(); void rasterizer_negativeCoords(); void blendOverFlow_data(); void blendOverFlow(); void largeImagePainting_data(); void largeImagePainting(); void imageScaling_task206785(); void outlineFillConsistency(); void drawImage_task217400_data(); void drawImage_task217400(); void drawRect_task215378(); void drawRect_task247505(); void drawImage_data(); void drawImage(); void clippedImage(); void stateResetBetweenQPainters(); void imageCoordinateLimit(); void imageBlending_data(); void imageBlending(); void imageBlending_clipped(); void paintOnNullPixmap(); void checkCompositionMode(); void drawPolygon(); void inactivePainter(); void extendedBlendModes(); void zeroOpacity(); void emptyClip(); private: void fillData(); QColor baseColor( int k, int intensity=255 ); QImage getResImage( const QString &dir, const QString &addition, const QString &extension ); QBitmap getBitmap( const QString &dir, const QString &filename, bool mask ); }; // Testing get/set functions void tst_QPainter::getSetCheck() { QImage img(QSize(10, 10), QImage::Format_ARGB32_Premultiplied); QPainter obj1; obj1.begin(&img); // CompositionMode QPainter::compositionMode() // void QPainter::setCompositionMode(CompositionMode) obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_SourceOver)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_SourceOver), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_DestinationOver)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_DestinationOver), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_Clear)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_Clear), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_Source)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_Source), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_Destination)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_Destination), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_SourceIn)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_SourceIn), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_DestinationIn)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_DestinationIn), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_SourceOut)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_SourceOut), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_DestinationOut)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_DestinationOut), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_SourceAtop)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_SourceAtop), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_DestinationAtop)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_DestinationAtop), obj1.compositionMode()); obj1.setCompositionMode(QPainter::CompositionMode(QPainter::CompositionMode_Xor)); QCOMPARE(QPainter::CompositionMode(QPainter::CompositionMode_Xor), obj1.compositionMode()); // const QPen & QPainter::pen() // void QPainter::setPen(const QPen &) QPen var3(Qt::red); obj1.setPen(var3); QCOMPARE(var3, obj1.pen()); obj1.setPen(QPen()); QCOMPARE(QPen(), obj1.pen()); // const QBrush & QPainter::brush() // void QPainter::setBrush(const QBrush &) QBrush var4(Qt::red); obj1.setBrush(var4); QCOMPARE(var4, obj1.brush()); obj1.setBrush(QBrush()); QCOMPARE(QBrush(), obj1.brush()); // const QBrush & QPainter::background() // void QPainter::setBackground(const QBrush &) QBrush var5(Qt::yellow); obj1.setBackground(var5); QCOMPARE(var5, obj1.background()); obj1.setBackground(QBrush()); QCOMPARE(QBrush(), obj1.background()); // bool QPainter::matrixEnabled() // void QPainter::setMatrixEnabled(bool) obj1.setMatrixEnabled(false); QCOMPARE(false, obj1.matrixEnabled()); obj1.setMatrixEnabled(true); QCOMPARE(true, obj1.matrixEnabled()); // bool QPainter::viewTransformEnabled() // void QPainter::setViewTransformEnabled(bool) obj1.setViewTransformEnabled(false); QCOMPARE(false, obj1.viewTransformEnabled()); obj1.setViewTransformEnabled(true); QCOMPARE(true, obj1.viewTransformEnabled()); } Q_DECLARE_METATYPE(QPixmap) Q_DECLARE_METATYPE(QPolygon) Q_DECLARE_METATYPE(QBrush) Q_DECLARE_METATYPE(QPen) Q_DECLARE_METATYPE(QFont) Q_DECLARE_METATYPE(QColor) Q_DECLARE_METATYPE(QRegion) tst_QPainter::tst_QPainter() { // QtTestCase sets this to false, but this turns off alpha pixmaps on Unix. QApplication::setDesktopSettingsAware(TRUE); } tst_QPainter::~tst_QPainter() { } void tst_QPainter::init() { } void tst_QPainter::cleanup() { } /* tests the clipping operations in qt_format_text, making sure the clip rectangle after the call is the same as before */ void tst_QPainter::qt_format_text_clip() { QVERIFY(1); QSKIP( "Needs fixing...", SkipAll); QWidget *w = new QWidget( 0 ); int modes[] = { Qt::AlignVCenter|Qt::TextSingleLine, Qt::AlignVCenter|Qt::TextSingleLine|Qt::TextDontClip, Qt::AlignVCenter|Qt::TextWordWrap, Qt::AlignVCenter|Qt::TextWordWrap|Qt::TextDontClip, 0 }; int *m = modes; while( *m ) { { QPainter p( w ); QRegion clipreg = p.clipRegion(); bool hasClipping = p.hasClipping(); qreal tx = p.matrix().dx(); qreal ty = p.matrix().dy(); p.drawText( 10, 10, 100, 100, *m, "fooo" ); QVERIFY( clipreg == p.clipRegion() ); QVERIFY( hasClipping == p.hasClipping() ); QCOMPARE( tx, p.matrix().dx() ); QCOMPARE( ty, p.matrix().dy() ); p.setClipRect( QRect( 5, 5, 50, 50 ) ); clipreg = p.clipRegion(); hasClipping = p.hasClipping(); p.drawText( 10, 10, 100, 100, *m, "fooo" ); QVERIFY( clipreg == p.clipRegion() ); QVERIFY( hasClipping == p.hasClipping() ); QCOMPARE( tx, p.matrix().dx() ); QCOMPARE( ty, p.matrix().dy() ); } { QPainter p( w ); p.setMatrix( QMatrix( 2, 1, 3, 4, 5, 6 ) ); QRegion clipreg = p.clipRegion(); bool hasClipping = p.hasClipping(); qreal tx = p.matrix().dx(); qreal ty = p.matrix().dy(); p.drawText( 10, 10, 100, 100, *m, "fooo" ); QVERIFY( clipreg == p.clipRegion() ); QVERIFY( hasClipping == p.hasClipping() ); QCOMPARE( tx, p.matrix().dx() ); QCOMPARE( ty, p.matrix().dy() ); p.setClipRect( QRect( 5, 5, 50, 50 ) ); clipreg = p.clipRegion(); hasClipping = p.hasClipping(); p.drawText( 10, 10, 100, 100, *m, "fooo" ); QVERIFY( clipreg == p.clipRegion() ); QVERIFY( hasClipping == p.hasClipping() ); QCOMPARE( tx, p.matrix().dx() ); QCOMPARE( ty, p.matrix().dy() ); } { QPainter p( w ); QRegion clipreg = p.clipRegion(); bool hasClipping = p.hasClipping(); qreal tx = p.matrix().dx(); qreal ty = p.matrix().dy(); p.drawText( 10, 10, 100, 100, *m, "fooo" ); QVERIFY( clipreg == p.clipRegion() ); QVERIFY( hasClipping == p.hasClipping() ); QCOMPARE( tx, p.matrix().dx() ); QCOMPARE( ty, p.matrix().dy() ); p.setClipRect( QRect( 5, 5, 50, 50 )); clipreg = p.clipRegion(); hasClipping = p.hasClipping(); p.drawText( 10, 10, 100, 100, *m, "fooo" ); QVERIFY( clipreg == p.clipRegion() ); QVERIFY( hasClipping == p.hasClipping() ); QCOMPARE( tx, p.matrix().dx() ); QCOMPARE( ty, p.matrix().dy() ); } { QPainter p( w ); p.setMatrix( QMatrix( 2, 1, 3, 4, 5, 6 ) ); QRegion clipreg = p.clipRegion(); bool hasClipping = p.hasClipping(); qreal tx = p.matrix().dx(); qreal ty = p.matrix().dy(); p.drawText( 10, 10, 100, 100, *m, "fooo" ); QVERIFY( clipreg == p.clipRegion() ); QVERIFY( hasClipping == p.hasClipping() ); QCOMPARE( tx, p.matrix().dx() ); QCOMPARE( ty, p.matrix().dy() ); p.setClipRect(QRect( 5, 5, 50, 50 )); clipreg = p.clipRegion(); hasClipping = p.hasClipping(); p.drawText( 10, 10, 100, 100, *m, "fooo" ); QVERIFY( clipreg == p.clipRegion() ); QVERIFY( hasClipping == p.hasClipping() ); QCOMPARE( tx, p.matrix().dx() ); QCOMPARE( ty, p.matrix().dy() ); } ++m; } delete w; } /* tests the bounding rect calculations in qt_format_text, making sure the bounding rect has a reasonable value. */ void tst_QPainter::qt_format_text_boundingRect() { QVERIFY(1); QSKIP( "Needs fixing...", SkipAll); { const char * strings[] = { "a\n\nb", "abc", "a\n \nb", "this is a longer string", "\327\222\327\223\327\233\327\223\327\222\327\233\327\222\327\223\327\233", "aa\327\222\327\233aa", "\327\222\327\223\327\233\327\223\327\222\327\233\327\222\327\223\327\233", "\327\222\327\233aa", "linebreakatend\n", "some text longer than 30 chars with a line break at the end\n", "some text\nwith line breaks\nin the middle\nand at the end\n", "foo\n\n\nfoo", 0 }; int modes[] = { Qt::AlignVCenter|Qt::TextSingleLine, Qt::AlignVCenter|Qt::TextSingleLine|Qt::TextDontClip, Qt::AlignVCenter|Qt::TextWordWrap, Qt::AlignVCenter|Qt::TextWordWrap|Qt::TextDontClip, Qt::AlignLeft, Qt::AlignCenter, Qt::AlignRight, 0 }; QFont f; for(int i = 5; i < 15; ++i) { f.setPointSize(i); QFontMetrics fm(f); const char **str = strings; while( *str ) { int *m = modes; while( *m ) { QRect br = fm.boundingRect( 0, 0, 2000, 100, *m, QString::fromUtf8( *str ) ); QVERIFY( br.width() < 800 ); QRect br2 = fm.boundingRect( br.x(), br.y(), br.width(), br.height(), *m, QString::fromUtf8( *str ) ); QCOMPARE( br, br2 ); #if 0 { QPrinter printer; printer.setOutputToFile(TRUE); printer.setOutputFileName("tmp.prn"); QPainter p(&printer); QRect pbr = p.fontMetrics().boundingRect( 0, 0, 2000, 100, *m, QString::fromUtf8( *str ) ); QCOMPARE(pbr, br); } #endif #if !defined(Q_OS_WINCE) { QPrinter printer(QPrinter::HighResolution); if (printer.printerName().isEmpty()) { QSKIP( "No printers installed, skipping bounding rect test", SkipSingle ); break; } printer.setOutputFileName("tmp.prn"); QPainter p(&printer); QRect pbr = p.fontMetrics().boundingRect( 0, 0, 12000, 600, *m, QString::fromUtf8( *str ) ); QVERIFY(pbr.width() > 2*br.width()); QVERIFY(pbr.height() > 2*br.height()); } #endif ++m; } ++str; } } } { const char * strings[] = { "a", "a\nb", "a\n\nb", "abc", // "a\n \nb", "this is a longer string", // "\327\222\327\223\327\233\327\223\327\222\327\233\327\222\327\223\327\233", // "aa\327\222\327\233aa", // "\327\222\327\223\327\233\327\223\327\222\327\233\327\222\327\223\327\233", // "\327\222\327\233aa", // "linebreakatend\n", // "some text longer than 30 chars with a line break at the end\n", // "some text\nwith line breaks\nin the middle\nand at the end\n", "foo\n\n\nfoo", "a\n\n\n\n\nb", "a\n\n\n\n\n\nb", // "\347\231\273\351\214\262\346\203\205\345\240\261\343\201\214\350\246\213\343\201\244\343\201\213\343\202\211\343\201\252\343\201\204\343\201\213\347\204\241\345\212\271\343\201\252\343\201\237\343\202\201\343\200\201\nPhotoshop Album \343\202\222\350\265\267\345\213\225\343\201\247\343\201\215\343\201\276\343\201\233\343\202\223\343\200\202\345\206\215\343\202\244\343\203\263\343\202\271\343\203\210\343\203\274\343\203\253\343\201\227\343\201\246\343\201\217\343\201\240\343\201\225\343\201\204\343\200\202" // "\347\231\273\351\214\262\346\203\205\345\240\261\343\201\214\350\246\213\343\201\244\343\201\213\343\202\211\343\201\252\343\201\204\343\201\213\347\204\241\345\212\271\343\201\252\343\201\237\343\202\201\343\200\201\n\343\202\222\350\265\267\345\213\225\343\201\247\343\201\215\343\201\276\343\201\233\343\202\223\343\200\202\345\206\215\343\202\244\343\203\263\343\202\271\343\203\210\343\203\274\343\203\253\343\201\227\343\201\246\343\201\217\343\201\240\343\201\225\343\201\204\343\200\202", 0 }; int modes[] = { Qt::AlignVCenter, Qt::AlignLeft, Qt::AlignCenter, Qt::AlignRight, 0 }; QFont f; for(int i = 5; i < 15; ++i) { f.setPointSize(i); QFontMetrics fm(f); const char **str = strings; while( *str ) { int *m = modes; while( *m ) { QString s = QString::fromUtf8(*str); QRect br = fm.boundingRect(0, 0, 1000, 1000, *m, s ); int lines = s.count("\n"); int expectedHeight = fm.height()+lines*fm.lineSpacing(); QCOMPARE(br.height(), expectedHeight); ++m; } ++str; } QRect br = fm.boundingRect(0, 0, 100, 0, Qt::TextWordWrap, "A paragraph with gggggggggggggggggggggggggggggggggggg in the middle."); QVERIFY(br.height() >= fm.height()+2*fm.lineSpacing()); } } } static const char* const maskSource_data[] = { "16 13 6 1", ". c None", "d c #000000", "# c #999999", "c c #cccccc", "b c #ffff00", "a c #ffffff", "...#####........", "..#aaaaa#.......", ".#abcbcba######.", ".#acbcbcaaaaaa#d", ".#abcbcbcbcbcb#d", "#############b#d", "#aaaaaaaaaa##c#d", "#abcbcbcbcbbd##d", ".#abcbcbcbcbcd#d", ".#acbcbcbcbcbd#d", "..#acbcbcbcbb#dd", "..#############d", "...ddddddddddddd"}; static const char* const maskResult_data[] = { "16 13 6 1", ". c #ff0000", "d c #000000", "# c #999999", "c c #cccccc", "b c #ffff00", "a c #ffffff", "...#####........", "..#aaaaa#.......", ".#abcbcba######.", ".#acbcbcaaaaaa#d", ".#abcbcbcbcbcb#d", "#############b#d", "#aaaaaaaaaa##c#d", "#abcbcbcbcbbd##d", ".#abcbcbcbcbcd#d", ".#acbcbcbcbcbd#d", "..#acbcbcbcbb#dd", "..#############d", "...ddddddddddddd"}; void tst_QPainter::drawPixmap_comp_data() { if (qApp->desktop()->depth() < 24) { QSKIP("Test only works on 32 bit displays", SkipAll); return; } QTest::addColumn("dest"); QTest::addColumn("source"); QTest::newRow("0% on 0%, 1") << 0x00000000u<< 0x00000000u; QTest::newRow("0% on 0%, 2") << 0x00007fffu << 0x00ff007fu; QTest::newRow("50% on a=0%") << 0x00000000u << 0x7fff0000u; QTest::newRow("50% on a=50%") << 0x7f000000u << 0x7fff0000u; QTest::newRow("50% on deadbeef") << 0xdeafbeefu << 0x7fff0000u; QTest::newRow("deadbeef on a=0%") << 0x00000000u << 0xdeadbeefu; QTest::newRow("deadbeef on a=50%") << 0x7f000000u << 0xdeadbeefu; QTest::newRow("50% blue on 50% red") << 0x7fff0000u << 0x7f0000ffu; QTest::newRow("50% blue on 50% green") << 0x7f00ff00u << 0x7f0000ffu; QTest::newRow("50% red on 50% green") << 0x7f00ff00u << 0x7fff0000u; QTest::newRow("0% on 50%") << 0x7fff00ffu << 0x00ffffffu; QTest::newRow("100% on deadbeef") << 0xdeafbeefu << 0xffabcdefu; QTest::newRow("100% on a=0%") << 0x00000000u << 0xffabcdefu; } QRgb qt_compose_alpha(QRgb source, QRgb dest) { int r1 = qRed(dest), g1 = qGreen(dest), b1 = qBlue(dest), a1 = qAlpha(dest); int r2 = qRed(source), g2 = qGreen(source), b2 = qBlue(source), a2 = qAlpha(source); int alpha = qMin(a2 + ((255 - a2) * a1 + 127) / 255, 255); if (alpha == 0) return qRgba(0, 0, 0, 0); return qRgba( qMin((r2 * a2 + (255 - a2) * r1 * a1 / 255) / alpha, 255), qMin((g2 * a2 + (255 - a2) * g1 * a1 / 255) / alpha, 255), qMin((b2 * a2 + (255 - a2) * b1 * a1 / 255) / alpha, 255), alpha); } /* Tests that drawing masked pixmaps works */ void tst_QPainter::drawPixmap_comp() { #ifdef Q_WS_MAC QSKIP("Mac has other ideas about alpha composition", SkipAll); #endif QFETCH(uint, dest); QFETCH(uint, source); QRgb expected = qt_compose_alpha(source, dest); QColor c1(qRed(dest), qGreen(dest), qBlue(dest), qAlpha(dest)); QColor c2(qRed(source), qGreen(source), qBlue(source), qAlpha(source)); QPixmap destPm(10, 10), srcPm(10, 10); destPm.fill(c1); srcPm.fill(c2); #if defined(Q_WS_X11) if (!destPm.x11PictureHandle()) QSKIP("Requires XRender support", SkipAll); #endif QPainter p(&destPm); p.drawPixmap(0, 0, srcPm); p.end(); QImage result = destPm.toImage().convertToFormat(QImage::Format_ARGB32); bool different = false; for (int y=0; y off) || (qAbs(qGreen(pix) - qGreen(expected)) > off) || (qAbs(qBlue(pix) - qBlue(expected)) > off) || (qAbs(qAlpha(pix) - qAlpha(expected)) > off); } if (diff && !different) qDebug( "Different at %d,%d pixel [%d,%d,%d,%d] expected [%d,%d,%d,%d]", x, y, qRed(result.pixel(x, y)), qGreen(result.pixel(x, y)), qBlue(result.pixel(x, y)), qAlpha(result.pixel(x, y)), qRed(expected), qGreen(expected), qBlue(expected), qAlpha(expected)); different |= diff; } QVERIFY(!different); } void tst_QPainter::saveAndRestore_data() { QVERIFY(1); QTest::addColumn("font"); QTest::addColumn("pen"); QTest::addColumn("brush"); QTest::addColumn("backgroundColor"); QTest::addColumn("backgroundMode"); QTest::addColumn("brushOrigin"); QTest::addColumn("clipRegion"); QTest::addColumn("window"); QTest::addColumn("viewport"); QPixmap pixmap(1, 1); QPainter p(&pixmap); QFont font = p.font(); QPen pen = p.pen(); QBrush brush = p.brush(); QColor backgroundColor = p.background().color(); Qt::BGMode backgroundMode = p.backgroundMode(); QPoint brushOrigin = p.brushOrigin(); QRegion clipRegion = p.clipRegion(); QRect window = p.window(); QRect viewport = p.viewport(); QTest::newRow("Original") << font << pen << brush << backgroundColor << int(backgroundMode) << brushOrigin << clipRegion << window << viewport; QFont font2 = font; font2.setPointSize( 24 ); QTest::newRow("Modified font.pointSize, brush, backgroundColor, backgroundMode") << font2 << pen << QBrush(Qt::red) << QColor(Qt::blue) << int(Qt::TransparentMode) << brushOrigin << clipRegion << window << viewport; font2 = font; font2.setPixelSize( 20 ); QTest::newRow("Modified font.pixelSize, brushOrigin, pos") << font2 << pen << brush << backgroundColor << int(backgroundMode) << QPoint( 50, 32 ) << clipRegion << window << viewport; QTest::newRow("Modified clipRegion, window, viewport") << font << pen << brush << backgroundColor << int(backgroundMode) << brushOrigin << clipRegion.subtracted(QRect(10,10,50,30)) << QRect(-500, -500, 500, 500 ) << QRect( 0, 0, 50, 50 ); } void tst_QPainter::saveAndRestore() { QFETCH( QFont, font ); QFETCH( QPen, pen ); QFETCH( QBrush, brush ); QFETCH( QColor, backgroundColor ); QFETCH( int, backgroundMode ); QFETCH( QPoint, brushOrigin ); QFETCH( QRegion, clipRegion ); QFETCH( QRect, window ); QFETCH( QRect, viewport ); QPixmap pixmap(1, 1); QPainter painter(&pixmap); QFont font_org = painter.font(); QPen pen_org = painter.pen(); QBrush brush_org = painter.brush(); QColor backgroundColor_org = painter.background().color(); Qt::BGMode backgroundMode_org = painter.backgroundMode(); QPoint brushOrigin_org = painter.brushOrigin(); QRegion clipRegion_org = painter.clipRegion(); QRect window_org = painter.window(); QRect viewport_org = painter.viewport(); painter.save(); painter.setFont( font ); painter.setPen( QPen(pen) ); painter.setBrush( brush ); painter.setBackground( backgroundColor ); painter.setBackgroundMode( (Qt::BGMode)backgroundMode ); painter.setBrushOrigin( brushOrigin ); painter.setClipRegion( clipRegion ); painter.setWindow( window ); painter.setViewport( viewport ); painter.restore(); QCOMPARE( painter.font(), font_org ); QCOMPARE( painter.font().pointSize(), font_org.pointSize() ); QCOMPARE( painter.font().pixelSize(), font_org.pixelSize() ); QCOMPARE( painter.pen(), pen_org ); QCOMPARE( painter.brush(), brush_org ); QCOMPARE( painter.background().color(), backgroundColor_org ); QCOMPARE( painter.backgroundMode(), backgroundMode_org ); QCOMPARE( painter.brushOrigin(), brushOrigin_org ); QCOMPARE( painter.clipRegion(), clipRegion_org ); QCOMPARE( painter.window(), window_org ); QCOMPARE( painter.viewport(), viewport_org ); } /* Helper functions */ QColor tst_QPainter::baseColor( int k, int intensity ) { int r = ( k & 1 ) * intensity; int g = ( (k>>1) & 1 ) * intensity; int b = ( (k>>2) & 1 ) * intensity; return QColor( r, g, b ); } QImage tst_QPainter::getResImage( const QString &dir, const QString &addition, const QString &extension ) { QImage res; QString resFilename = dir + QString( "/res_%1." ).arg( addition ) + extension; if ( !res.load( resFilename ) ) { QWARN(QString("Could not load result data %s %1").arg(resFilename).toLatin1()); return QImage(); } return res; } QBitmap tst_QPainter::getBitmap( const QString &dir, const QString &filename, bool mask ) { QBitmap bm; QString bmFilename = dir + QString( "/%1.xbm" ).arg( filename ); if ( !bm.load( bmFilename ) ) { QWARN(QString("Could not load bitmap '%1'").arg(bmFilename).toLatin1()); return QBitmap(); } if ( mask ) { QBitmap mask; QString maskFilename = dir + QString( "/%1-mask.xbm" ).arg( filename ); if ( !mask.load( maskFilename ) ) { QWARN(QString("Could not load mask '%1'").arg(maskFilename).toLatin1()); return QBitmap(); } bm.setMask( mask ); } return bm; } static int getPaintedPixels(const QImage &image, const QColor &background) { uint color = background.rgba(); int pixels = 0; for (int y = 0; y < image.height(); ++y) for (int x = 0; x < image.width(); ++x) if (image.pixel(x, y) != color) ++pixels; return pixels; } static QRect getPaintedSize(const QImage &image, const QColor &background) { // not the fastest but at least it works.. int xmin = image.width() + 1; int xmax = -1; int ymin = image.height() +1; int ymax = -1; uint color = background.rgba(); for ( int y = 0; y < image.height(); ++y ) { for ( int x = 0; x < image.width(); ++x ) { QRgb pixel = image.pixel( x, y ); if ( pixel != color && x < xmin ) xmin = x; if ( pixel != color && x > xmax ) xmax = x; if ( pixel != color && y < ymin ) ymin = y; if ( pixel != color && y > ymax ) ymax = y; } } return QRect(xmin, ymin, xmax - xmin + 1, ymax - ymin + 1); } static QRect getPaintedSize(const QPixmap &pm, const QColor &background) { return getPaintedSize(pm.toImage(), background); } void tst_QPainter::initFrom() { QWidget *widget = new QWidget(); QPalette pal = widget->palette(); pal.setColor(QPalette::Foreground, QColor(255, 0, 0)); pal.setBrush(QPalette::Background, QColor(0, 255, 0)); widget->setPalette(pal); QFont font = widget->font(); font.setPointSize(26); font.setItalic(true); widget->setFont(font); QPixmap pm(100, 100); QPainter p(&pm); p.initFrom(widget); QCOMPARE(p.font(), font); QCOMPARE(p.pen().color(), pal.color(QPalette::Foreground)); QCOMPARE(p.background(), pal.background()); delete widget; } void tst_QPainter::drawLine_data() { QTest::addColumn("line"); QTest::newRow("0-45") << QLine(0, 20, 100, 0); QTest::newRow("45-90") << QLine(0, 100, 20, 0); QTest::newRow("90-135") << QLine(20, 100, 0, 0); QTest::newRow("135-180") << QLine(100, 20, 0, 0); QTest::newRow("180-225") << QLine(100, 0, 0, 20); QTest::newRow("225-270") << QLine(20, 0, 0, 100); QTest::newRow("270-315") << QLine(0, 0, 20, 100); QTest::newRow("315-360") << QLine(0, 0, 100, 20); } void tst_QPainter::drawLine() { const int offset = 5; const int epsilon = 1; // allow for one pixel difference QFETCH(QLine, line); QPixmap pixmapUnclipped(qMin(line.x1(), line.x2()) + 2*offset + qAbs(line.dx()), qMin(line.y1(), line.y2()) + 2*offset + qAbs(line.dy())); { // unclipped pixmapUnclipped.fill(Qt::white); QPainter p(&pixmapUnclipped); p.translate(offset, offset); p.setPen(QPen(Qt::black)); p.drawLine(line); p.end(); const QRect painted = getPaintedSize(pixmapUnclipped, Qt::white); QLine l = line; l.translate(offset, offset); QVERIFY(qAbs(painted.width() - qAbs(l.dx())) <= epsilon); QVERIFY(qAbs(painted.height() - qAbs(l.dy())) <= epsilon); QVERIFY(qAbs(painted.top() - qMin(l.y1(), l.y2())) <= epsilon); QVERIFY(qAbs(painted.left() - qMin(l.x1(), l.x2())) <= epsilon); QVERIFY(qAbs(painted.bottom() - qMax(l.y1(), l.y2())) <= epsilon); QVERIFY(qAbs(painted.right() - qMax(l.x1(), l.x2())) <= epsilon); } QPixmap pixmapClipped(qMin(line.x1(), line.x2()) + 2*offset + qAbs(line.dx()), qMin(line.y1(), line.y2()) + 2*offset + qAbs(line.dy())); { // clipped const QRect clip = QRect(line.p1(), line.p2()).normalized(); pixmapClipped.fill(Qt::white); QPainter p(&pixmapClipped); p.translate(offset, offset); p.setClipRect(clip); p.setPen(QPen(Qt::black)); p.drawLine(line); p.end(); } const QImage unclipped = pixmapUnclipped.toImage(); const QImage clipped = pixmapClipped.toImage(); QCOMPARE(unclipped, clipped); } void tst_QPainter::drawLine_clipped() { QImage image(16, 1, QImage::Format_ARGB32_Premultiplied); image.fill(0x0); QPainter p(&image); p.setPen(QPen(Qt::black, 10)); // this should fill the whole image p.drawLine(-1, -1, 17, 1); p.end(); for (int x = 0; x < 16; ++x) QCOMPARE(image.pixel(x, 0), 0xff000000); } void tst_QPainter::drawLine_task121143() { QPen pen(Qt::black); QImage image(5, 5, QImage::Format_ARGB32_Premultiplied); image.fill(0xffffffff); QPainter p(&image); p.setPen(pen); p.drawLine(QLine(0, 0+4, 0+4, 0)); p.end(); QImage expected(5, 5, QImage::Format_ARGB32_Premultiplied); expected.fill(0xffffffff); for (int x = 0; x < 5; ++x) expected.setPixel(x, 5-x-1, pen.color().rgb()); QCOMPARE(image, expected); } void tst_QPainter::drawLine_task190634() { QPen pen(Qt::black, 3); QImage image(32, 32, QImage::Format_ARGB32_Premultiplied); QPainter p(&image); p.fillRect(0, 0, image.width(), image.height(), Qt::white); p.setPen(pen); p.drawLine(QLineF(2, -1.6, 10, -1.6)); p.end(); const uint *data = reinterpret_cast(image.bits()); for (int i = 0; i < image.width() * image.height(); ++i) QCOMPARE(data[i], 0xffffffff); p.begin(&image); p.fillRect(0, 0, image.width(), image.height(), Qt::white); p.setPen(pen); p.drawLine(QLineF(-1.6, 2, -1.6, 10)); p.end(); data = reinterpret_cast(image.bits()); for (int i = 0; i < image.width() * image.height(); ++i) QCOMPARE(data[i], 0xffffffff); p.begin(&image); p.fillRect(0, 0, image.width(), image.height(), Qt::white); p.setPen(pen); p.drawLine( QPoint(2,-2), QPoint(3,-5) ); p.end(); data = reinterpret_cast(image.bits()); for (int i = 0; i < image.width() * image.height(); ++i) QCOMPARE(data[i], 0xffffffff); } void tst_QPainter::drawLine_task229459() { QImage image(32, 32, QImage::Format_ARGB32_Premultiplied); image.fill(0x0); QPen pen(Qt::black, 64); QPainter p(&image); p.setPen(pen); p.drawLine(-8, -8, 10000000, 10000000); p.end(); QImage expected = image; expected.fill(0xff000000); QCOMPARE(image, expected); } void tst_QPainter::drawLine_task234891() { QImage img(100, 1000, QImage::Format_ARGB32_Premultiplied); img.fill(0x0); QImage expected = img; QPainter p(&img); p.setPen(QPen(QBrush(QColor(255,0,0)), 6)); p.drawLine(QPointF(25000,100),QPointF(30000,105)); p.setPen(QPen(QBrush(QColor(0,255,0)), 6)); p.drawLine(QPointF(30000,150),QPointF(35000,155)); p.setPen(QPen(QBrush(QColor(0,0,255)), 6)); p.drawLine(QPointF(65000,200),QPointF(66000,205)); QCOMPARE(expected, img); } void tst_QPainter::drawLine_task216948() { QImage img(1, 10, QImage::Format_ARGB32_Premultiplied); img.fill(0x0); QPainter p(&img); QLine line(10, 0, 10, 10); p.translate(-10, 0); p.drawLine(line); p.end(); for (int i = 0; i < img.height(); ++i) QCOMPARE(img.pixel(0, i), QColor(Qt::black).rgba()); } void tst_QPainter::drawRect() { QFETCH(QRect, rect); QFETCH(bool, usePen); QPixmap pixmap(rect.x() + rect.width() + 10, rect.y() + rect.height() + 10); { pixmap.fill(Qt::white); QPainter p(&pixmap); p.setPen(usePen ? QPen(Qt::black) : QPen(Qt::NoPen)); p.setBrush(Qt::black); p.drawRect(rect); p.end(); int increment = usePen ? 1 : 0; const QRect painted = getPaintedSize(pixmap, Qt::white); QCOMPARE(painted.width(), rect.width() + increment); QCOMPARE(painted.height(), rect.height() + increment); } #ifdef QT3_SUPPORT { if (usePen && (rect.width() < 2 || rect.height() < 2)) return; pixmap.fill(Qt::white); Q3Painter p(&pixmap); p.setPen(usePen ? QPen(Qt::black) : QPen(Qt::NoPen)); p.setBrush(Qt::black); p.drawRect(rect); p.end(); const QRect painted = getPaintedSize(pixmap, Qt::white); QCOMPARE(painted.width(), rect.width()); QCOMPARE(painted.height(), rect.height()); } #endif } void tst_QPainter::drawRect2() { QImage image(64, 64, QImage::Format_ARGB32_Premultiplied); { image.fill(0xffffffff); QTransform transform(0.368567, 0, 0, 0, 0.368567, 0, 0.0289, 0.0289, 1); QPainter p(&image); p.setTransform(transform); p.setBrush(Qt::red); p.setPen(Qt::NoPen); p.drawRect(QRect(14, 14, 39, 39)); p.end(); QRect fill = getPaintedSize(image, Qt::white); image.fill(0xffffffff); p.begin(&image); p.setTransform(transform); p.drawRect(QRect(14, 14, 39, 39)); p.end(); QRect stroke = getPaintedSize(image, Qt::white); QCOMPARE(stroke.adjusted(1, 1, 0, 0), fill.adjusted(0, 0, 1, 1)); } } void tst_QPainter::fillRect() { QImage image(100, 100, QImage::Format_ARGB32_Premultiplied); image.fill(QColor(0, 0, 0, 0).rgba()); QPainter p(&image); p.fillRect(0, 0, 100, 100, QColor(255, 0, 0, 127)); // pixmap.save("bla1.png", "PNG"); QCOMPARE(getPaintedSize(image, QColor(0, 0, 0, 0)), QRect(0, 0, 100, 100)); QCOMPARE(getPaintedSize(image, QColor(127, 0, 0, 127)).isValid(), QRect().isValid()); p.setCompositionMode(QPainter::CompositionMode_SourceIn); p.fillRect(50, 0, 50, 100, QColor(0, 0, 255, 255)); QCOMPARE(getPaintedSize(image, QColor(127, 0, 0, 127)), QRect(50, 0, 50, 100)); QCOMPARE(getPaintedSize(image, QColor(0, 0, 127, 127)), QRect(0, 0, 50, 100)); } void tst_QPainter::fillRect2() { QRgb background = 0x0; QImage img(1, 20, QImage::Format_ARGB32_Premultiplied); img.fill(background); QPainter p(&img); QRectF rect(0, 1, 1.2, 18); p.fillRect(rect, Qt::black); p.end(); QCOMPARE(img.pixel(0, 0), background); QCOMPARE(img.pixel(0, img.height() - 1), background); QCOMPARE(img.pixel(0, 1), img.pixel(0, 2)); QCOMPARE(img.pixel(0, img.height() - 2), img.pixel(0, img.height() - 3)); } void tst_QPainter::fillRect3() { QImage img(1, 1, QImage::Format_ARGB32_Premultiplied); img.fill(QColor(Qt::black).rgba()); QPainter p(&img); p.setCompositionMode(QPainter::CompositionMode_Source); p.fillRect(img.rect(), Qt::transparent); p.end(); QCOMPARE(img.pixel(0, 0), 0U); } void tst_QPainter::fillRect4() { QImage image(100, 1, QImage::Format_ARGB32_Premultiplied); image.fill(0x0); QImage expected = image; expected.fill(0xffffffff); QPainter p(&image); p.scale(1.1, 1); p.setPen(Qt::NoPen); for (int i = 0; i < 33; ++i) p.fillRect(QRectF(3 * i, 0, 3, 1), Qt::white); p.end(); QCOMPARE(image, expected); } void tst_QPainter::drawPath_data() { QTest::addColumn("path"); QTest::addColumn("expectedBounds"); QTest::addColumn("expectedPixels"); { QPainterPath p; p.addRect(2, 2, 10, 10); QTest::newRow("int-aligned rect") << p << QRect(2, 2, 10, 10) << 10 * 10; } { QPainterPath p; p.addRect(2.25, 2.25, 10, 10); QTest::newRow("non-aligned rect") << p << QRect(3, 3, 10, 10) << 10 * 10; } { QPainterPath p; p.addRect(2.25, 2.25, 10.5, 10.5); QTest::newRow("non-aligned rect 2") << p << QRect(3, 3, 10, 10) << 10 * 10; } { QPainterPath p; p.addRect(2.5, 2.5, 10, 10); QTest::newRow("non-aligned rect 3") << p << QRect(3, 3, 10, 10) << 10 * 10; } { QPainterPath p; p.addRect(2, 2, 10, 10); p.addRect(4, 4, 6, 6); QTest::newRow("rect-in-rect") << p << QRect(2, 2, 10, 10) << 10 * 10 - 6 * 6; } { QPainterPath p; p.addRect(2, 2, 10, 10); p.addRect(4, 4, 6, 6); p.addRect(6, 6, 2, 2); QTest::newRow("rect-in-rect-in-rect") << p << QRect(2, 2, 10, 10) << 10 * 10 - 6 * 6 + 2 * 2; } } void tst_QPainter::drawPath() { QFETCH(QPainterPath, path); QFETCH(QRect, expectedBounds); QFETCH(int, expectedPixels); const int offset = 2; QImage image(expectedBounds.width() + 2 * offset, expectedBounds.height() + 2 * offset, QImage::Format_ARGB32_Premultiplied); image.fill(QColor(Qt::white).rgb()); QPainter p(&image); p.setPen(Qt::NoPen); p.setBrush(Qt::black); p.translate(offset - expectedBounds.left(), offset - expectedBounds.top()); p.drawPath(path); p.end(); const QRect paintedBounds = getPaintedSize(image, Qt::white); QCOMPARE(paintedBounds.x(), offset); QCOMPARE(paintedBounds.y(), offset); QCOMPARE(paintedBounds.width(), expectedBounds.width()); QCOMPARE(paintedBounds.height(), expectedBounds.height()); if (expectedPixels != -1) { int paintedPixels = getPaintedPixels(image, Qt::white); QCOMPARE(paintedPixels, expectedPixels); } } void tst_QPainter::drawPath2() { const int w = 50; for (int h = 5; h < 200; ++h) { QPainterPath p1, p2; p1.lineTo(w, 0); p1.lineTo(w, h); p2.lineTo(w, h); p2.lineTo(0, h); const int offset = 2; QImage image(w + 2 * offset, h + 2 * offset, QImage::Format_ARGB32_Premultiplied); image.fill(QColor(Qt::white).rgb()); QPainter p(&image); p.setPen(Qt::NoPen); p.setBrush(Qt::black); p.translate(offset, offset); p.drawPath(p1); p.end(); const int p1Pixels = getPaintedPixels(image, Qt::white); image.fill(QColor(Qt::white).rgb()); p.begin(&image); p.setPen(Qt::NoPen); p.setBrush(Qt::black); p.translate(offset, offset); p.drawPath(p2); p.end(); const int p2Pixels = getPaintedPixels(image, Qt::white); QCOMPARE(p1Pixels + p2Pixels, w * h); } } void tst_QPainter::drawPath3() { #ifndef Q_OS_WINCE QImage imgA(400, 400, QImage::Format_RGB32); #else QImage imgA(100, 100, QImage::Format_RGB32); #endif imgA.fill(0xffffff); QImage imgB = imgA; QPainterPath path; for (int y = 0; y < imgA.height(); ++y) { for (int x = 0; x < imgA.width(); ++x) { if ((x + y) & 1) { imgA.setPixel(x, y, 0); path.addRect(x, y, 1, 1); } } } QPainter p(&imgB); p.setPen(Qt::NoPen); p.setBrush(Qt::black); p.drawPath(path); p.end(); QVERIFY(imgA == imgB); imgA.invertPixels(); imgB.fill(0xffffff); p.begin(&imgB); p.setPen(Qt::NoPen); p.setBrush(Qt::black); QRectF rect(0, 0, imgA.width(), imgA.height()); path.addRect(rect.adjusted(-10, -10, 10, 10)); p.drawPath(path); p.end(); QVERIFY(imgA == imgB); path.setFillRule(Qt::WindingFill); imgB.fill(0xffffff); p.begin(&imgB); p.setPen(Qt::NoPen); p.setBrush(Qt::black); QRect clip = rect.adjusted(10, 10, -10, -10).toRect(); p.setClipRect(clip); p.drawPath(path); p.end(); QCOMPARE(getPaintedPixels(imgB, Qt::white), clip.width() * clip.height()); } void tst_QPainter::drawEllipse_data() { QTest::addColumn("size"); QTest::addColumn("usePen"); // The current drawEllipse algorithm (drawEllipse_midpoint_i in // qpaintengine_raster.cpp) draws ellipses that are too wide if the // ratio between width and hight is too large/small (task 114874). Those // ratios are therefore currently avoided. for (int w = 10; w < 128; w += 7) { for (int h = w/2; h < qMin(2*w, 128); h += 13) { QString s = QString("%1x%2").arg(w).arg(h); QTest::newRow(QString("%1 with pen").arg(s).toLatin1()) << QSize(w, h) << true; QTest::newRow(QString("%1 no pen").arg(s).toLatin1()) << QSize(w, h) << false; } } } void tst_QPainter::drawEllipse() { QFETCH(QSize, size); QFETCH(bool, usePen); const int offset = 10; QRect rect(QPoint(offset, offset), size); QImage image(size.width() + 2 * offset, size.height() + 2 * offset, QImage::Format_ARGB32_Premultiplied); image.fill(QColor(Qt::white).rgb()); QPainter p(&image); p.setPen(usePen ? QPen(Qt::black) : QPen(Qt::NoPen)); p.setBrush(Qt::black); p.drawEllipse(rect); p.end(); QPixmap pixmap = QPixmap::fromImage(image); const QRect painted = getPaintedSize(pixmap, Qt::white); QCOMPARE(painted.x(), rect.x()); QCOMPARE(painted.y(), rect.y() + (usePen ? 0 : 1)); QCOMPARE(painted.width(), size.width() + (usePen ? 1 : 0)); QCOMPARE(painted.height(), size.height() + (usePen ? 1 : -1)); } void tst_QPainter::drawClippedEllipse_data() { QTest::addColumn("rect"); for (int w = 20; w < 128; w += 7) { for (int h = w/2; h < qMin(2*w, 128); h += 13) { QString s = QString("%1x%2").arg(w).arg(h); QTest::newRow(QString("%1 top").arg(s).toLatin1()) << QRect(0, -h/2, w, h); QTest::newRow(QString("%1 topright").arg(s).toLatin1()) << QRect(w/2, -h/2, w, h); QTest::newRow(QString("%1 right").arg(s).toLatin1()) << QRect(w/2, 0, w, h); QTest::newRow(QString("%1 bottomright").arg(s).toLatin1()) << QRect(w/2, h/2, w, h); QTest::newRow(QString("%1 bottom").arg(s).toLatin1()) << QRect(0, h/2, w, h); QTest::newRow(QString("%1 bottomleft").arg(s).toLatin1()) << QRect(-w/2, h/2, w, h); QTest::newRow(QString("%1 left").arg(s).toLatin1()) << QRect(-w/2, 0, w, h); QTest::newRow(QString("%1 topleft").arg(s).toLatin1()) << QRect(-w/2, -h/2, w, h); } } } void tst_QPainter::drawClippedEllipse() { QFETCH(QRect, rect); #if defined(Q_OS_WINCE) if (sizeof(qreal) != sizeof(double)) QSKIP("Test only works for qreal==double", SkipAll); #endif QImage image(rect.width() + 1, rect.height() + 1, QImage::Format_ARGB32_Premultiplied); QRect expected = QRect(rect.x(), rect.y(), rect.width()+1, rect.height()+1) & QRect(0, 0, image.width(), image.height()); image.fill(QColor(Qt::white).rgb()); QPainter p(&image); p.drawEllipse(rect); p.end(); QPixmap pixmap = QPixmap::fromImage(image); const QRect painted = getPaintedSize(pixmap, Qt::white); QCOMPARE(painted.x(), expected.x()); QCOMPARE(painted.y(), expected.y()); QCOMPARE(painted.width(), expected.width()); QCOMPARE(painted.height(), expected.height()); } void tst_QPainter::drawRoundRect() { QFETCH(QRect, rect); QFETCH(bool, usePen); #ifdef Q_WS_MAC if (QTest::currentDataTag() == QByteArray("rect(6, 12, 3, 14) with pen") || QTest::currentDataTag() == QByteArray("rect(6, 17, 3, 25) with pen") || QTest::currentDataTag() == QByteArray("rect(10, 6, 10, 3) with pen") || QTest::currentDataTag() == QByteArray("rect(10, 12, 10, 14) with pen") || QTest::currentDataTag() == QByteArray("rect(13, 45, 17, 80) with pen") || QTest::currentDataTag() == QByteArray("rect(13, 50, 17, 91) with pen") || QTest::currentDataTag() == QByteArray("rect(17, 6, 24, 3) with pen") || QTest::currentDataTag() == QByteArray("rect(24, 12, 38, 14) with pen")) QSKIP("The Mac paint engine is off-by-one on certain rect sizes", SkipSingle); #endif QPixmap pixmap(rect.x() + rect.width() + 10, rect.y() + rect.height() + 10); { pixmap.fill(Qt::white); QPainter p(&pixmap); p.setPen(usePen ? QPen(Qt::black) : QPen(Qt::NoPen)); p.setBrush(Qt::black); p.drawRoundRect(rect); p.end(); int increment = usePen ? 1 : 0; const QRect painted = getPaintedSize(pixmap, Qt::white); QCOMPARE(painted.width(), rect.width() + increment); QCOMPARE(painted.height(), rect.height() + increment); } #ifdef QT3_SUPPORT { pixmap.fill(Qt::white); Q3Painter p(&pixmap); p.setPen(usePen ? QPen(Qt::black) : QPen(Qt::NoPen)); p.setBrush(Qt::black); p.drawRoundRect(rect); p.end(); const QRect painted = getPaintedSize(pixmap, Qt::white); QCOMPARE(painted.width(), rect.width()); QCOMPARE(painted.height(), rect.height()); } #endif } Q_DECLARE_METATYPE(QImage::Format) void tst_QPainter::qimageFormats_data() { QTest::addColumn("format"); QTest::newRow("QImage::Format_RGB32") << QImage::Format_RGB32; QTest::newRow("QImage::Format_ARGB32") << QImage::Format_ARGB32; QTest::newRow("QImage::Format_ARGB32_Premultiplied") << QImage::Format_ARGB32_Premultiplied; QTest::newRow("QImage::Format_RGB16") << QImage::Format_RGB16; QTest::newRow("Qimage::Format_ARGB8565_Premultiplied") << QImage::Format_ARGB8565_Premultiplied; QTest::newRow("Qimage::Format_RGB666") << QImage::Format_RGB666; QTest::newRow("Qimage::Format_RGB555") << QImage::Format_RGB555; QTest::newRow("Qimage::Format_ARGB8555_Premultiplied") << QImage::Format_ARGB8555_Premultiplied; QTest::newRow("Qimage::Format_RGB888") << QImage::Format_RGB888; } /* Tests that QPainter can paint on various QImage formats. */ void tst_QPainter::qimageFormats() { QFETCH(QImage::Format, format); const QSize size(100, 100); QImage image(size, format); image.fill(0); const QColor testColor(Qt::red); QPainter p(&image); QVERIFY(p.isActive()); p.setBrush(QBrush(testColor)); p.drawRect(QRect(QPoint(0,0), size)); QCOMPARE(image.pixel(50, 50), testColor.rgb()); } void tst_QPainter::fillData() { QTest::addColumn("rect"); QTest::addColumn("usePen"); for (int w = 3; w < 50; w += 7) { for (int h = 3; h < 50; h += 11) { int x = w/2 + 5; int y = h/2 + 5; QTest::newRow(QString("rect(%1, %2, %3, %4) with pen").arg(x).arg(y).arg(w).arg(h).toLatin1()) << QRect(x, y, w, h) << true; QTest::newRow(QString("rect(%1, %2, %3, %4) no pen").arg(x).arg(y).arg(w).arg(h).toLatin1()) << QRect(x, y, w, h) << false; } } } /* Test that drawline works properly after setWindow has been called. */ void tst_QPainter::setWindow() { QPixmap pixmap(600, 600); pixmap.fill(QColor(Qt::white)); QPainter painter(&pixmap); painter.setWindow(0, 0, 3, 3); painter.drawLine(1, 1, 2, 2); const QRect painted = getPaintedSize(pixmap, Qt::white); QVERIFY(195 < painted.y() && painted.y() < 205); // correct value is around 200 QVERIFY(195 < painted.height() && painted.height() < 205); // correct value is around 200 } void tst_QPainter::combinedMatrix() { QPixmap pm(64, 64); QPainter p(&pm); p.setWindow(0, 0, 1, 1); p.setViewport(32, 0, 32, 32); p.translate(0.5, 0.5); QMatrix cm = p.combinedMatrix(); QPointF pt = QPointF(0, 0) * cm; QCOMPARE(pt.x(), 48.0); QCOMPARE(pt.y(), 16.0); } void tst_QPainter::textOnTransparentImage() { bool foundPixel = false; QImage image(10, 10, QImage::Format_ARGB32_Premultiplied); image.fill(qRgba(0, 0, 0, 0)); // transparent { QPainter painter(&image); painter.setPen(QColor(255, 255, 255)); painter.drawText(0, 10, "W"); } for (int x = 0; x < image.width(); ++x) for (int y = 0; y < image.height(); ++y) if (image.pixel(x, y) != 0) foundPixel = true; QVERIFY(foundPixel); } void tst_QPainter::renderHints() { QImage img(1, 1, QImage::Format_RGB32); QPainter p(&img); // Turn off all... p.setRenderHints(QPainter::RenderHints(0xffffffff), false); QCOMPARE(p.renderHints(), QPainter::RenderHints(0)); // Single set/get p.setRenderHint(QPainter::Antialiasing); QVERIFY(p.renderHints() & QPainter::Antialiasing); p.setRenderHint(QPainter::Antialiasing, false); QVERIFY(!(p.renderHints() & QPainter::Antialiasing)); // Multi set/get p.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform); QVERIFY(p.renderHints() & (QPainter::Antialiasing | QPainter::SmoothPixmapTransform)); p.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform, false); QVERIFY(!(p.renderHints() & (QPainter::Antialiasing | QPainter::SmoothPixmapTransform))); } int countPixels(const QImage &img, const QRgb &color) { int count = 0; for (int y = 0; y < img.height(); ++y) { for (int x = 0; x < img.width(); ++x) { count += ((img.pixel(x, y) & 0xffffff) == color); } } return count; } template void testClipping(QImage &img) { img.fill(0x0); QPainterPath a, b; a.addRect(QRect(2, 2, 4, 4)); b.addRect(QRect(4, 4, 4, 4)); QPainter p(&img); p.setClipPath(a); p.setClipPath(b, Qt::UniteClip); p.setClipping(false); p.setPen(Qt::NoPen); p.setBrush(QColor(0xff0000)); p.drawRect(T(0, 0, 10, 10)); p.setClipping(true); p.setBrush(QColor(0x00ff00)); p.drawRect(T(0, 0, 10, 10)); QCOMPARE(countPixels(img, 0xff0000), 72); QCOMPARE(countPixels(img, 0x00ff00), 28); p.end(); img.fill(0x0); p.begin(&img); p.setClipPath(a); p.setClipPath(b, Qt::IntersectClip); p.setClipping(false); p.setPen(Qt::NoPen); p.setBrush(QColor(0xff0000)); p.drawRect(T(0, 0, 10, 10)); p.setClipping(true); p.setBrush(QColor(0x00ff00)); p.drawRect(T(0, 0, 10, 10)); QCOMPARE(countPixels(img, 0xff0000), 96); QCOMPARE(countPixels(img, 0x00ff00), 4); } void tst_QPainter::disableEnableClipping() { QImage img(10, 10, QImage::Format_RGB32); testClipping(img); testClipping(img); } void tst_QPainter::setClipRect() { QImage img(10, 10, QImage::Format_RGB32); // simple test to let valgrind check for buffer overflow { QPainter p(&img); p.setClipRect(-10, -10, 100, 100); p.fillRect(-10, -10, 100, 100, QBrush(QColor(Qt::red))); } // rects with negative width/height { QPainter p(&img); p.setClipRect(QRect(10, 10, -10, 10)); QVERIFY(p.clipRegion().isEmpty()); p.setClipRect(QRect(10, 10, 10, -10)); QVERIFY(p.clipRegion().isEmpty()); p.setClipRect(QRectF(10.5, 10.5, -10.5, 10.5)); QVERIFY(p.clipRegion().isEmpty()); p.setClipRect(QRectF(10.5, 10.5, 10.5, -10.5)); QVERIFY(p.clipRegion().isEmpty()); } } /* This tests the two different clipping approaches in QRasterPaintEngine, one when using a QRegion and one when using a QPainterPath. They should give equal results. */ void tst_QPainter::setEqualClipRegionAndPath_data() { QTest::addColumn("deviceSize"); QTest::addColumn("region"); QTest::newRow("empty") << QSize(100, 100) << QRegion(); QTest::newRow("simple rect") << QSize(100, 100) << QRegion(QRect(5, 5, 10, 10)); QVector rects; QRegion region; rects << QRect(5, 5, 10, 10) << QRect(20, 20, 10, 10); region.setRects(rects.constData(), rects.size()); QTest::newRow("two rects") << QSize(100, 100) << region; rects.clear(); rects << QRect(5, 5, 10, 10) << QRect(20, 5, 10, 10); region.setRects(rects.constData(), rects.size()); QTest::newRow("two x-adjacent rects") << QSize(100, 100) << region; rects.clear(); rects << QRect(0, 0, 10, 100) << QRect(12, 0, 10, 100); region.setRects(rects.constData(), rects.size()); QTest::newRow("two x-adjacent rects 2") << QSize(100, 100) << region; rects.clear(); rects << QRect(0, 0, 10, 100) << QRect(12, 0, 10, 100); region.setRects(rects.constData(), rects.size()); QTest::newRow("two x-adjacent rects 3") << QSize(50, 50) << region; rects.clear(); rects << QRect(0, 0, 10, 100) << QRect(12, 0, 10, 100); region.setRects(rects.constData(), rects.size()); QTest::newRow("two x-adjacent rects 4") << QSize(101, 101) << region; region = QRegion(QRect(0, 0, 200, 200), QRegion::Ellipse); QTest::newRow("ellipse") << QSize(190, 200) << region; region ^= QRect(50, 50, 50, 50); QTest::newRow("ellipse 2") << QSize(200, 200) << region; } void tst_QPainter::setEqualClipRegionAndPath() { QFETCH(QSize, deviceSize); QFETCH(QRegion, region); QPainterPath path; path.addRegion(region); QImage img1(deviceSize.width(), deviceSize.height(), QImage::Format_ARGB32); QImage img2(deviceSize.width(), deviceSize.height(), QImage::Format_ARGB32); img1.fill(0x12345678); img2.fill(0x12345678); { QPainter p(&img1); p.setClipRegion(region); p.fillRect(0, 0, img1.width(), img1.height(), QColor(Qt::red)); } { QPainter p(&img2); p.setClipPath(path); p.fillRect(0, 0, img2.width(), img2.height(), QColor(Qt::red)); } #if 0 if (img1 != img2) { img1.save("setEqualClipRegionAndPath_1.xpm", "XPM"); img2.save("setEqualClipRegionAndPath_2.xpm", "XPM"); } #endif QCOMPARE(img1, img2); #if 0 // rotated img1.fill(0x12345678); img2.fill(0x12345678); { QPainter p(&img1); p.rotate(25); p.setClipRegion(region); p.fillRect(0, 0, img1.width(), img1.height(), QColor(Qt::red)); } { QPainter p(&img2); p.rotate(25); p.setClipPath(path); p.fillRect(0, 0, img2.width(), img2.height(), QColor(Qt::red)); } #if 1 if (img1 != img2) { img1.save("setEqualClipRegionAndPath_1.xpm", "XPM"); img2.save("setEqualClipRegionAndPath_2.xpm", "XPM"); } #endif QCOMPARE(img1, img2); #endif // simple uniteclip img1.fill(0x12345678); img2.fill(0x12345678); { QPainter p(&img1); p.setClipRegion(region); p.setClipRegion(region, Qt::UniteClip); p.fillRect(0, 0, img1.width(), img1.height(), QColor(Qt::red)); } { QPainter p(&img2); p.setClipPath(path); p.setClipPath(path, Qt::UniteClip); p.fillRect(0, 0, img2.width(), img2.height(), QColor(Qt::red)); } QCOMPARE(img1, img2); img1.fill(0x12345678); img2.fill(0x12345678); { QPainter p(&img1); p.setClipPath(path); p.setClipRegion(region, Qt::UniteClip); p.fillRect(0, 0, img1.width(), img1.height(), QColor(Qt::red)); } { QPainter p(&img2); p.setClipRegion(region); p.setClipPath(path, Qt::UniteClip); p.fillRect(0, 0, img2.width(), img2.height(), QColor(Qt::red)); } #if 0 if (img1 != img2) { img1.save("setEqualClipRegionAndPath_1.xpm", "XPM"); img2.save("setEqualClipRegionAndPath_2.xpm", "XPM"); } #endif QCOMPARE(img1, img2); // simple intersectclip img1.fill(0x12345678); img2.fill(0x12345678); { QPainter p(&img1); p.setClipRegion(region); p.setClipRegion(region, Qt::IntersectClip); p.fillRect(0, 0, img1.width(), img1.height(), QColor(Qt::red)); } { QPainter p(&img2); p.setClipPath(path); p.setClipPath(path, Qt::IntersectClip); p.fillRect(0, 0, img2.width(), img2.height(), QColor(Qt::red)); } #if 0 if (img1 != img2) { img1.save("setEqualClipRegionAndPath_1.png", "PNG"); img2.save("setEqualClipRegionAndPath_2.png", "PNG"); } #endif QCOMPARE(img1, img2); img1.fill(0x12345678); img2.fill(0x12345678); { QPainter p(&img1); p.setClipPath(path); p.setClipRegion(region, Qt::IntersectClip); p.fillRect(0, 0, img1.width(), img1.height(), QColor(Qt::red)); } { QPainter p(&img2); p.setClipRegion(region); p.setClipPath(path, Qt::IntersectClip); p.fillRect(0, 0, img2.width(), img2.height(), QColor(Qt::red)); } #if 0 if (img1 != img2) { img1.save("setEqualClipRegionAndPath_1.xpm", "XPM"); img2.save("setEqualClipRegionAndPath_2.xpm", "XPM"); } #endif QCOMPARE(img1, img2); } void tst_QPainter::clippedFillPath_data() { QTest::addColumn("imageSize"); QTest::addColumn("path"); QTest::addColumn("clipRect"); QTest::addColumn("brush"); QTest::addColumn("pen"); QLinearGradient gradient(QPoint(0, 0), QPoint(100, 100)); gradient.setColorAt(0, Qt::red); gradient.setColorAt(1, Qt::blue); QPen pen2(QColor(223, 223, 0, 223)); pen2.setWidth(2); QPainterPath path; path.addRect(QRect(15, 15, 50, 50)); QTest::newRow("simple rect 0") << QSize(100, 100) << path << QRect(15, 15, 49, 49) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("simple rect 1") << QSize(100, 100) << path << QRect(15, 15, 50, 50) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("simple rect 2") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("simple rect 3") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(QColor(Qt::blue)) << QPen(Qt::NoPen); QTest::newRow("simple rect 4") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(gradient) << pen2; path = QPainterPath(); path.addEllipse(QRect(15, 15, 50, 50)); QTest::newRow("ellipse 0") << QSize(100, 100) << path << QRect(15, 15, 49, 49) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("ellipse 1") << QSize(100, 100) << path << QRect(15, 15, 50, 50) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("ellipse 2") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("ellipse 3") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(QColor(Qt::blue)) << QPen(Qt::NoPen); QTest::newRow("ellipse 4") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(gradient) << pen2; path = QPainterPath(); path.addRoundRect(QRect(15, 15, 50, 50), 20); QTest::newRow("round rect 0") << QSize(100, 100) << path << QRect(15, 15, 49, 49) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("round rect 1") << QSize(100, 100) << path << QRect(15, 15, 50, 50) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("round rect 2") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("round rect 3") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(QColor(Qt::blue)) << QPen(Qt::NoPen); QTest::newRow("round rect 4") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(gradient) << pen2; path = QPainterPath(); path.moveTo(15, 50); path.cubicTo(40, 50, 40, 15, 65, 50); path.lineTo(15, 50); QTest::newRow("cubic 0") << QSize(100, 100) << path << QRect(15, 15, 49, 49) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("cubic 1") << QSize(100, 100) << path << QRect(15, 15, 50, 50) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("cubic 2") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(Qt::NoBrush) << QPen(Qt::black); QTest::newRow("cubic 3") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(QColor(Qt::blue)) << QPen(Qt::NoPen); QTest::newRow("cubic 4") << QSize(100, 100) << path << QRect(15, 15, 51, 51) << QBrush(gradient) << pen2; } void tst_QPainter::clippedFillPath() { QFETCH(QSize, imageSize); QFETCH(QPainterPath, path); QFETCH(QRect, clipRect); QPainterPath clipPath; clipPath.addRect(clipRect); QFETCH(QBrush, brush); QFETCH(QPen, pen); const int width = imageSize.width(); const int height = imageSize.height(); QImage clippedRect(width, height, QImage::Format_ARGB32_Premultiplied); clippedRect.fill(0x12345678); { QPainter painter(&clippedRect); painter.setPen(pen); painter.setBrush(brush); painter.setClipRect(clipRect); painter.drawPath(path); } QImage clippedPath(width, height, QImage::Format_ARGB32_Premultiplied); clippedPath.fill(0x12345678); { QPainter painter(&clippedPath); painter.setPen(pen); painter.setBrush(brush); painter.setClipPath(clipPath); painter.drawPath(path); } #if 0 if (clippedRect != clippedPath) { clippedRect.save(QString("clippedRect.png"), "PNG"); clippedPath.save(QString("clippedPath.png"), "PNG"); } #endif QCOMPARE(clippedRect, clippedPath); // repeat with antialiasing clippedRect.fill(0x12345678); { QPainter painter(&clippedRect); painter.setRenderHint(QPainter::Antialiasing); painter.setPen(pen); painter.setBrush(brush); painter.setClipRect(clipRect); painter.drawPath(path); } clippedPath.fill(0x12345678); { QPainter painter(&clippedPath); painter.setRenderHint(QPainter::Antialiasing); painter.setPen(pen); painter.setBrush(brush); painter.setClipPath(clipPath); painter.drawPath(path); } #if 1 if (clippedRect != clippedPath) { clippedRect.save(QString("clippedRect.png"), "PNG"); clippedPath.save(QString("clippedPath.png"), "PNG"); } #endif QCOMPARE(clippedRect, clippedPath); } void tst_QPainter::clippedLines_data() { QTest::addColumn("imageSize"); QTest::addColumn("line"); QTest::addColumn("clipRect"); QTest::addColumn("pen"); QPen pen2(QColor(223, 223, 0, 223)); pen2.setWidth(2); QVector lines; lines << QLineF(15, 15, 65, 65) << QLineF(14, 14, 66, 66) << QLineF(16, 16, 64, 64) << QLineF(65, 65, 15, 15) << QLineF(66, 66, 14, 14) << QLineF(64, 64, 14, 14) << QLineF(15, 50, 15, 64) << QLineF(15, 50, 15, 65) << QLineF(15, 50, 15, 66) << QLineF(15, 50, 64, 50) << QLineF(15, 50, 65, 50) << QLineF(15, 50, 66, 50); foreach (QLineF line, lines) { QString desc = QString("line (%1, %2, %3, %4) %5").arg(line.x1()) .arg(line.y1()).arg(line.x2()).arg(line.y2()); QTest::newRow(qPrintable(desc.arg(0))) << QSize(100, 100) << line << QRect(15, 15, 49, 49) << QPen(Qt::black); QTest::newRow(qPrintable(desc.arg(1))) << QSize(100, 100) << line << QRect(15, 15, 50, 50) << QPen(Qt::black); QTest::newRow(qPrintable(desc.arg(2))) << QSize(100, 100) << line << QRect(15, 15, 51, 51) << QPen(Qt::black); QTest::newRow(qPrintable(desc.arg(3))) << QSize(100, 100) << line << QRect(15, 15, 51, 51) << QPen(Qt::NoPen); QTest::newRow(qPrintable(desc.arg(4))) << QSize(100, 100) << line << QRect(15, 15, 51, 51) << pen2; } } void tst_QPainter::clippedLines() { QFETCH(QSize, imageSize); QFETCH(QLineF, line); QFETCH(QRect, clipRect); QPainterPath clipPath; clipPath.addRect(clipRect); QFETCH(QPen, pen); const int width = imageSize.width(); const int height = imageSize.height(); QImage clippedRect(width, height, QImage::Format_ARGB32_Premultiplied); clippedRect.fill(0x12345678); { QPainter painter(&clippedRect); painter.setPen(pen); painter.setClipRect(clipRect); painter.drawLine(line); painter.drawLine(line.toLine()); } QImage clippedPath(width, height, QImage::Format_ARGB32_Premultiplied); clippedPath.fill(0x12345678); { QPainter painter(&clippedPath); painter.setPen(pen); painter.setClipPath(clipPath); painter.drawLine(line); painter.drawLine(line.toLine()); } #if 0 if (clippedRect != clippedPath) { clippedRect.save(QString("clippedRect.png"), "PNG"); clippedPath.save(QString("clippedPath.png"), "PNG"); } #endif QCOMPARE(clippedRect, clippedPath); // repeat with antialiasing clippedRect.fill(0x12345678); { QPainter painter(&clippedRect); painter.setRenderHint(QPainter::Antialiasing); painter.setPen(pen); painter.setClipRect(clipRect); painter.drawLine(line); painter.drawLine(line.toLine()); } clippedPath.fill(0x12345678); { QPainter painter(&clippedPath); painter.setRenderHint(QPainter::Antialiasing); painter.setPen(pen); painter.setClipPath(clipPath); painter.drawLine(line); painter.drawLine(line.toLine()); } #if 0 if (clippedRect != clippedPath) { clippedRect.save(QString("clippedRect.png"), "PNG"); clippedPath.save(QString("clippedPath.png"), "PNG"); } #endif QCOMPARE(clippedRect, clippedPath); } void tst_QPainter::clippedPolygon_data() { clippedFillPath_data(); }; void tst_QPainter::clippedPolygon() { QFETCH(QSize, imageSize); QFETCH(QPainterPath, path); QPolygonF polygon = path.toFillPolygon(); QFETCH(QRect, clipRect); QPainterPath clipPath; clipPath.addRect(clipRect); QFETCH(QPen, pen); QFETCH(QBrush, brush); const int width = imageSize.width(); const int height = imageSize.height(); QImage clippedRect(width, height, QImage::Format_ARGB32_Premultiplied); clippedRect.fill(0x12345678); { QPainter painter(&clippedRect); painter.setPen(pen); painter.setBrush(brush); painter.setClipRect(clipRect); painter.drawPolygon(polygon); painter.drawPolygon(polygon.toPolygon()); } QImage clippedPath(width, height, QImage::Format_ARGB32_Premultiplied); clippedPath.fill(0x12345678); { QPainter painter(&clippedPath); painter.setPen(pen); painter.setBrush(brush); painter.setClipRect(clipRect); painter.drawPolygon(polygon); painter.drawPolygon(polygon.toPolygon()); } #if 0 if (clippedRect != clippedPath) { clippedRect.save(QString("clippedRect.png"), "PNG"); clippedPath.save(QString("clippedPath.png"), "PNG"); } #endif QCOMPARE(clippedRect, clippedPath); // repeat with antialiasing clippedRect.fill(0x12345678); { QPainter painter(&clippedRect); painter.setRenderHint(QPainter::Antialiasing); painter.setPen(pen); painter.setBrush(brush); painter.setClipRect(clipRect); painter.drawPolygon(polygon); painter.drawPolygon(polygon.toPolygon()); } clippedPath.fill(0x12345678); { QPainter painter(&clippedPath); painter.setRenderHint(QPainter::Antialiasing); painter.setPen(pen); painter.setBrush(brush); painter.setClipRect(clipRect); painter.drawPolygon(polygon); painter.drawPolygon(polygon.toPolygon()); } #if 0 if (clippedRect != clippedPath) { clippedRect.save(QString("clippedRect.png"), "PNG"); clippedPath.save(QString("clippedPath.png"), "PNG"); } #endif QCOMPARE(clippedRect, clippedPath); } // this just draws some text that should be clipped in the raster // paint engine. void tst_QPainter::clippedText() { for (char ch = 'A'; ch < 'Z'; ++ch) { //qDebug() << ch; QFont f; f.setPixelSize(24); QFontMetrics metrics(f); QRect textRect = metrics.boundingRect(QChar(ch)); if (textRect.width() <= 8) continue; if (textRect.height() <= 8) continue; QRect imageRect = textRect.adjusted(4, 4, -4, -4); QImage image(imageRect.size(), QImage::Format_ARGB32_Premultiplied); image.fill(qRgba(255, 255, 255, 255)); { QPainter painter(&image); painter.setFont(f); painter.setPen(Qt::black); painter.drawText(0, 0, QChar(ch)); } image.fill(qRgba(255, 255, 255, 255)); { QPainter painter(&image); painter.setFont(f); painter.setPen(Qt::black); painter.drawText(-imageRect.topLeft(), QChar(ch)); } bool foundPixel = false; for (int x = 0; x < image.width(); ++x) for (int y = 0; y < image.height(); ++y) if (image.pixel(x, y) != 0) foundPixel = true; // can't QVERIFY(foundPixel) as sometimes all pixels are clipped // away. For example for 'O' // just call /some/ function to prevent the compiler from optimizing // foundPixel away QString::number(foundPixel); //image.save(QString("debug") + ch + ".xpm"); } QVERIFY(true); // reached, don't trigger any valgrind errors } void tst_QPainter::setOpacity_data() { QTest::addColumn("destFormat"); QTest::addColumn("srcFormat"); QTest::newRow("ARGB32P on ARGB32P") << QImage::Format_ARGB32_Premultiplied << QImage::Format_ARGB32_Premultiplied; QTest::newRow("ARGB32 on ARGB32") << QImage::Format_ARGB32 << QImage::Format_ARGB32; QTest::newRow("RGB32 on RGB32") << QImage::Format_RGB32 << QImage::Format_RGB32; QTest::newRow("RGB16 on RGB16") << QImage::Format_RGB16 << QImage::Format_RGB16; QTest::newRow("ARGB8565_Premultiplied on ARGB8565_Premultiplied") << QImage::Format_ARGB8565_Premultiplied << QImage::Format_ARGB8565_Premultiplied; QTest::newRow("RGB555 on RGB555") << QImage::Format_RGB555 << QImage::Format_RGB555; QTest::newRow("RGB666 on RGB666") << QImage::Format_RGB666 << QImage::Format_RGB666; QTest::newRow("ARGB8555_Premultiplied on ARGB8555_Premultiplied") << QImage::Format_ARGB8555_Premultiplied << QImage::Format_ARGB8555_Premultiplied; QTest::newRow("RGB888 on RGB888") << QImage::Format_RGB888 << QImage::Format_RGB888; QTest::newRow("RGB32 on RGB16") << QImage::Format_RGB16 << QImage::Format_RGB32; QTest::newRow("RGB32 on ARGB8565_Premultiplied") << QImage::Format_ARGB8565_Premultiplied << QImage::Format_RGB32; QTest::newRow("RGB32 on RGB666") << QImage::Format_RGB666 << QImage::Format_RGB32; QTest::newRow("RGB32 on RGB555") << QImage::Format_RGB555 << QImage::Format_RGB32; QTest::newRow("RGB32 on ARGB8555_Premultiplied") << QImage::Format_ARGB8555_Premultiplied << QImage::Format_RGB32; QTest::newRow("RGB32 on RGB888") << QImage::Format_RGB888 << QImage::Format_RGB32; QTest::newRow("RGB16 on RGB32") << QImage::Format_RGB32 << QImage::Format_RGB16; QTest::newRow("ARGB8565_Premultiplied on RGB32") << QImage::Format_RGB32 << QImage::Format_ARGB8565_Premultiplied; QTest::newRow("RGB666 on RGB32") << QImage::Format_RGB32 << QImage::Format_RGB666; QTest::newRow("RGB555 on RGB32") << QImage::Format_RGB32 << QImage::Format_RGB555; QTest::newRow("ARGB8555_Premultiplied on RGB32") << QImage::Format_RGB32 << QImage::Format_ARGB8555_Premultiplied; QTest::newRow("RGB888 on RGB32") << QImage::Format_RGB32 << QImage::Format_RGB888; QTest::newRow("RGB555 on RGB888") << QImage::Format_RGB888 << QImage::Format_RGB555; QTest::newRow("RGB666 on RGB888") << QImage::Format_RGB888 << QImage::Format_RGB666; QTest::newRow("RGB444 on RGB444") << QImage::Format_RGB444 << QImage::Format_RGB444; } void tst_QPainter::setOpacity() { QFETCH(QImage::Format, destFormat); QFETCH(QImage::Format, srcFormat); const QSize imageSize(12, 12); const QRect imageRect(QPoint(0, 0), imageSize); QColor destColor = Qt::black; QColor srcColor = Qt::white; QImage dest(imageSize, destFormat); QImage src(imageSize, srcFormat); QPainter p; p.begin(&dest); p.fillRect(imageRect, destColor); p.end(); p.begin(&src); p.fillRect(imageRect, srcColor); p.end(); p.begin(&dest); p.setOpacity(0.5); p.drawImage(imageRect, src, imageRect); p.end(); QImage expected(imageSize, destFormat); p.begin(&expected); p.fillRect(imageRect, QColor(127, 127, 127)); p.end(); QCOMPARE(dest, expected); } void tst_QPainter::drawhelper_blend_untransformed_data() { setOpacity_data(); } void tst_QPainter::drawhelper_blend_untransformed() { QFETCH(QImage::Format, destFormat); QFETCH(QImage::Format, srcFormat); const int size = 128; const QSize imageSize(size, size); const QRect paintRect(1, 0, size - 2, size); // needs alignment and tailing QColor destColor(127, 127, 127); QColor srcColor(Qt::white); QImage dest(imageSize, destFormat); QImage src(imageSize, srcFormat); QPainter p; p.begin(&src); p.fillRect(paintRect, srcColor); p.end(); QList opacities = (QList() << 0.0 << 0.1 << 0.01 << 0.4 << 0.5 << 0.6 << 0.9 << 1.0); foreach (qreal opacity, opacities) { p.begin(&dest); p.fillRect(paintRect, destColor); p.setOpacity(opacity); p.drawImage(paintRect, src, paintRect); p.end(); // sanity check: make sure all pixels are equal QImage expected(size - 2, size, destFormat); p.begin(&expected); p.fillRect(0, 0, expected.width(), expected.height(), QColor(dest.pixel(1, 0))); p.end(); const QImage subDest(dest.bits() + dest.depth() / 8, dest.width() - 2, dest.height(), dest.bytesPerLine(), dest.format()); if (dest.format() == QImage::Format_ARGB8565_Premultiplied || dest.format() == QImage::Format_ARGB8555_Premultiplied) { // Test skipped due to rounding errors... continue; } #if 0 if (subDest != expected) { qDebug() << "size" << size << "opacity" << opacity; for (int j = 0; j < expected.height(); ++j) { for (int i = 0; i < expected.width(); ++i) { if (expected.pixel(i,j) != subDest.pixel(i,j)) qDebug() << i << j << hex << expected.pixel(i, j) << subDest.pixel(i, j); } } } #endif QCOMPARE(subDest, expected); } } void tst_QPainter::drawhelper_blend_tiled_untransformed_data() { setOpacity_data(); } void tst_QPainter::drawhelper_blend_tiled_untransformed() { QFETCH(QImage::Format, destFormat); QFETCH(QImage::Format, srcFormat); const int size = 128; const QSize imageSize(size, size); const QRect paintRect(1, 0, size - 2, size); // needs alignment and tailing QColor destColor(127, 127, 127); QColor srcColor(Qt::white); QImage dest(imageSize, destFormat); QImage src(imageSize / 2, srcFormat); QPainter p; p.begin(&src); p.fillRect(QRect(QPoint(0, 0), imageSize/ 2), srcColor); p.end(); const QBrush brush(src); QList opacities = (QList() << 0.0 << 0.1 << 0.01 << 0.4 << 0.5 << 0.6 << 0.9 << 1.0); foreach (qreal opacity, opacities) { p.begin(&dest); p.fillRect(paintRect, destColor); p.setOpacity(opacity); p.fillRect(paintRect, brush); p.end(); // sanity check: make sure all pixels are equal QImage expected(size - 2, size, destFormat); p.begin(&expected); p.fillRect(0, 0, expected.width(), expected.height(), QColor(dest.pixel(1, 0))); p.end(); const QImage subDest(dest.bits() + dest.depth() / 8, dest.width() - 2, dest.height(), dest.bytesPerLine(), dest.format()); if (dest.format() == QImage::Format_ARGB8565_Premultiplied || dest.format() == QImage::Format_ARGB8555_Premultiplied) { // Skipping test due to rounding errors. Test needs rewrite continue; } #if 0 if (subDest != expected) { qDebug() << "size" << size << "opacity" << opacity; for (int j = 0; j < expected.height(); ++j) { for (int i = 0; i < expected.width(); ++i) { if (expected.pixel(i,j) != subDest.pixel(i,j)) qDebug() << i << j << hex << expected.pixel(i, j) << subDest.pixel(i, j); } } } #endif QCOMPARE(subDest, expected); } } static QPaintEngine::PaintEngineFeatures no_porter_duff() { QPaintEngine::PaintEngineFeatures features = QPaintEngine::AllFeatures; return features & ~QPaintEngine::PorterDuff; } class DummyPaintEngine : public QPaintEngine, public QPaintDevice { public: DummyPaintEngine() : QPaintEngine(no_porter_duff()) {} virtual bool begin(QPaintDevice *) { return true; } virtual bool end() { return true; } virtual void updateState(const QPaintEngineState &) {} virtual void drawPixmap(const QRectF &, const QPixmap &, const QRectF &) {} virtual Type type() const { return User; } virtual QPaintEngine *paintEngine() const { return (QPaintEngine *)this; } virtual int metric(PaintDeviceMetric metric) const { Q_UNUSED(metric); return 0; }; }; static bool success; void porterDuff_warningChecker(QtMsgType type, const char *msg) { if (type == QtWarningMsg && msg == QLatin1String("QPainter::setCompositionMode: PorterDuff modes not supported on device")) success = false; } void tst_QPainter::porterDuff_warning() { QtMsgHandler old = qInstallMsgHandler(porterDuff_warningChecker); DummyPaintEngine dummy; QPainter p(&dummy); success = true; p.setCompositionMode(QPainter::CompositionMode_Source); QVERIFY(success); success = true; p.setCompositionMode(QPainter::CompositionMode_SourceOver); QVERIFY(success); success = true; p.setCompositionMode(QPainter::CompositionMode_DestinationOver); QVERIFY(!success); QVERIFY(qInstallMsgHandler(old) == porterDuff_warningChecker); } class quint24 { public: inline quint24(quint32 v) { data[0] = qBlue(v); data[1] = qGreen(v); data[2] = qRed(v); } inline operator quint32 () { return qRgb(data[2], data[1], data[0]); } inline bool operator==(const quint24 &v) const { return (data[0] == v.data[0] && data[1] == v.data[1] && data[2] == v.data[2]); } uchar data[3]; } Q_PACKED; void tst_QPainter::drawhelper_blend_color() { QImage dest(32, 32, QImage::Format_ARGB8555_Premultiplied); dest.fill(0xff000000); { QPainter p(&dest); p.fillRect(0, 0, dest.width(), dest.height(), QColor(255, 0, 0, 127)); } QImage expected(32, 32, QImage::Format_ARGB8555_Premultiplied); expected.fill(0xff3c007f); QCOMPARE(dest.pixel(1, 1), expected.pixel(1, 1)); QCOMPARE(dest, expected); } class ViewportTestWidget : public QWidget { public: ViewportTestWidget(QWidget *parent = 0) : QWidget(parent), hasPainted(false) {} QSize sizeHint() const { return QSize(100, 100); } QRect viewport; bool hasPainted; protected: void paintEvent(QPaintEvent *) { hasPainted = true; QPainter p(this); viewport = p.viewport(); } }; void tst_QPainter::childWidgetViewport() { QWidget parent; parent.setAutoFillBackground(true); parent.resize(200, 200); ViewportTestWidget child(&parent); child.setAutoFillBackground(true); parent.show(); parent.update(); qApp->processEvents(); if (child.hasPainted) { QCOMPARE(child.viewport, QRect(QPoint(0, 0), child.sizeHint())); } else { qWarning("Failed to ensure that paintEvent has been run. Could not run test."); } } void tst_QPainter::fillRect_objectBoundingModeGradient() { QImage a(10, 10, QImage::Format_ARGB32_Premultiplied); a.fill(0x0); QImage b = a; QLinearGradient g(QPoint(0, 0), QPoint(0, 1)); g.setColorAt(0, Qt::red); g.setColorAt(1, Qt::blue); g.setCoordinateMode(QGradient::ObjectBoundingMode); QPainter p(&a); p.fillRect(QRect(0, 0, a.width(), a.height()), g); p.end(); QPainterPath path; path.addRect(0, 0, a.width(), a.height()); p.begin(&b); p.fillPath(path, g); p.end(); QCOMPARE(a, b); } void tst_QPainter::fillRect_stretchToDeviceMode() { QImage img(64, 64, QImage::Format_ARGB32_Premultiplied); QLinearGradient g(QPoint(0, 0), QPoint(0, 1)); g.setCoordinateMode(QGradient::StretchToDeviceMode); QPainter p(&img); p.fillRect(img.rect(), g); p.end(); for (int i = 1; i < img.height(); ++i) QVERIFY(img.pixel(0, i) != img.pixel(0, i-1)); } void tst_QPainter::monoImages() { Qt::GlobalColor colorPairs[][2] = { { Qt::white, Qt::black }, { Qt::color0, Qt::color1 }, { Qt::red, Qt::blue } }; const int numColorPairs = sizeof(colorPairs) / sizeof(QRgb[2]); QImage transparent(2, 2, QImage::Format_ARGB32_Premultiplied); transparent.fill(0x0); for (int i = 1; i < QImage::NImageFormats; ++i) { for (int j = 0; j < numColorPairs; ++j) { const QImage::Format format = QImage::Format(i); if (format == QImage::Format_Indexed8) continue; QImage img(2, 2, format); if (img.numColors() > 0) { img.setColor(0, QColor(colorPairs[j][0]).rgba()); img.setColor(1, QColor(colorPairs[j][1]).rgba()); } img.fill(0x0); QPainter p(&img); p.fillRect(0, 0, 2, 2, colorPairs[j][0]); p.fillRect(0, 0, 1, 1, colorPairs[j][1]); p.fillRect(1, 1, 1, 1, colorPairs[j][1]); p.end(); QImage original = img; p.begin(&img); p.drawImage(0, 0, transparent); p.end(); // drawing a transparent image on top of another image // should not change the image QCOMPARE(original, img); if (img.numColors() == 0) continue; for (int k = 0; k < 2; ++k) { QPainter p(&img); p.fillRect(0, 0, 2, 2, colorPairs[j][k]); p.end(); QImage argb32p(2, 2, QImage::Format_ARGB32_Premultiplied); p.begin(&argb32p); p.fillRect(0, 0, 2, 2, colorPairs[j][k]); p.end(); QCOMPARE(argb32p, img.convertToFormat(argb32p.format())); // drawing argb32p image on mono image p.begin(&img); p.drawImage(0, 0, argb32p); p.end(); QCOMPARE(argb32p, img.convertToFormat(argb32p.format())); // drawing mono image on argb32p image p.begin(&argb32p); p.drawImage(0, 0, img); p.end(); QCOMPARE(argb32p, img.convertToFormat(argb32p.format())); } } } } #if !defined(Q_OS_IRIX) && !defined(Q_OS_AIX) && !defined(Q_CC_MSVC) && !defined(Q_OS_SOLARIS) #include static const QString fpeExceptionString(int exception) { #ifdef FE_INEXACT if (exception & FE_INEXACT) return QLatin1String("Inexact result"); #endif if (exception & FE_UNDERFLOW) return QLatin1String("Underflow"); if (exception & FE_OVERFLOW) return QLatin1String("Overflow"); if (exception & FE_DIVBYZERO) return QLatin1String("Divide by zero"); if (exception & FE_INVALID) return QLatin1String("Invalid operation"); return QLatin1String("No exception"); } class FpExceptionChecker { public: FpExceptionChecker(int exceptionMask) : m_exceptionMask(exceptionMask) { feclearexcept(m_exceptionMask); } ~FpExceptionChecker() { const int exceptions = fetestexcept(m_exceptionMask); QVERIFY2(!exceptions, qPrintable(QLatin1String("Floating point exception: ") + fpeExceptionString(exceptions))); } private: int m_exceptionMask; }; void fpe_rasterizeLine_task232012() { FpExceptionChecker checker(FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID | FE_DIVBYZERO); QImage img(128, 128, QImage::Format_ARGB32_Premultiplied); img.fill(0x0); QPainter p(&img); p.setBrush(Qt::black); p.drawRect(QRectF(0, 0, 5, 0)); p.drawRect(QRectF(0, 0, 0, 5)); } void fpe_pixmapTransform() { FpExceptionChecker checker(FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID | FE_DIVBYZERO); QImage img(128, 128, QImage::Format_ARGB32_Premultiplied); QPainter p(&img); const qreal scaleFactor = 0.001; const int translateDistance = 1000000; p.setPen(Qt::red); p.setBrush(QBrush(Qt::red,Qt::Dense6Pattern)); for (int i = 0; i < 2; ++i) { p.setRenderHint(QPainter::SmoothPixmapTransform, i); p.resetTransform(); p.scale(1.1, 1.1); p.translate(translateDistance, 0); p.drawRect(-translateDistance, 0, 100, 100); p.resetTransform(); p.scale(scaleFactor, scaleFactor); p.drawRect(QRectF(0, 0, 1 / scaleFactor, 1 / scaleFactor)); } } void fpe_zeroLengthLines() { FpExceptionChecker checker(FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID | FE_DIVBYZERO); QImage img(128, 128, QImage::Format_ARGB32_Premultiplied); QPainter p(&img); p.setPen(QPen(Qt::black, 3)); p.drawLine(64, 64, 64, 64); } void fpe_divByZero() { FpExceptionChecker checker(FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID | FE_DIVBYZERO); QImage img(128, 128, QImage::Format_ARGB32_Premultiplied); QPainter p(&img); p.setRenderHint(QPainter::Antialiasing); p.drawRect(QRectF(10, 10, 100, 0)); p.drawRect(QRectF(10, 10, 0, 100)); p.drawRect(QRect(10, 10, 100, 0)); p.drawRect(QRect(10, 10, 0, 100)); p.fillRect(QRectF(10, 10, 100, 0), Qt::black); p.fillRect(QRectF(10, 10, 0, 100), Qt::black); p.fillRect(QRect(10, 10, 100, 0), Qt::black); p.fillRect(QRect(10, 10, 0, 100), Qt::black); } void fpe_steepSlopes() { FpExceptionChecker checker(FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID | FE_DIVBYZERO); QImage img(1024, 1024, QImage::Format_ARGB32_Premultiplied); QFETCH(QTransform, transform); QFETCH(QLineF, line); QFETCH(bool, antialiased); QPainter p(&img); p.setPen(QPen(Qt::black, 1)); p.setRenderHint(QPainter::Antialiasing, antialiased); p.setTransform(transform); QEXPECT_FAIL("steep line 3 aa", "needs to be fixed", Continue); p.drawLine(line); } void fpe_radialGradients() { FpExceptionChecker checker(FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID | FE_DIVBYZERO); QImage img(21, 21, QImage::Format_ARGB32_Premultiplied); img.fill(0); double m = img.width() * 0.5; QPainter p(&img); p.setRenderHints(QPainter::Antialiasing); p.setPen(Qt::NoPen); p.setBrush(QRadialGradient(m, m, m)); p.drawEllipse(img.rect()); } #define FPE_TEST(x) \ void tst_QPainter::x() \ { \ ::x(); \ } #else #define FPE_TEST(x) \ void tst_QPainter::x() \ { \ QSKIP("Floating point exception checking (fenv.h) not available", SkipAll); \ } #endif FPE_TEST(fpe_rasterizeLine_task232012) FPE_TEST(fpe_pixmapTransform) FPE_TEST(fpe_zeroLengthLines) FPE_TEST(fpe_divByZero) FPE_TEST(fpe_steepSlopes) FPE_TEST(fpe_radialGradients) void tst_QPainter::fpe_steepSlopes_data() { QTest::addColumn("transform"); QTest::addColumn("line"); QTest::addColumn("antialiased"); { const qreal dsin = 0.000014946676875461832484392500630665523431162000633776187896728515625; const qreal dcos = 0.9999999998882984630910186751862056553363800048828125; const QTransform transform = QTransform(QMatrix(dcos, dsin, -dsin, dcos, 64, 64)); const QLineF line(2, 2, 2, 6); QTest::newRow("task 207147 aa") << transform << line << true; QTest::newRow("task 207147 no aa") << transform << line << false; } { QTransform transform; transform.rotate(0.0000001); const QLineF line(5, 5, 10, 5); QTest::newRow("task 166702 aa") << transform << line << true; QTest::newRow("task 166702 no aa") << transform << line << false; } { const QTransform transform; const QLineF line(2.5, 2.5, 2.5 + 1/256., 60000.5); QTest::newRow("steep line aa") << transform << line << true; QTest::newRow("steep line no aa") << transform << line << false; } { const QTransform transform; const QLineF line(2.5, 2.5, 2.5 + 1/256., 1024); QTest::newRow("steep line 2 aa") << transform << line << true; QTest::newRow("steep line 2 no aa") << transform << line << false; } { const QTransform transform; const QLineF line(2.5, 2.5, 2.5 + 1/64., 1024); QTest::newRow("steep line 3 aa") << transform << line << true; QTest::newRow("steep line 3 no aa") << transform << line << false; } } qreal randf() { return rand() / (RAND_MAX + 1.0); } QPointF randInRect(const QRectF &rect) { const qreal x = rect.left() + rect.width() * randf(); const qreal y = rect.top() + rect.height() * randf(); return QPointF(x, y); } void tst_QPainter::rasterizer_asserts() { QImage img(64, 64, QImage::Format_ARGB32_Premultiplied); QRectF middle(QPointF(0, 0), img.size()); QRectF left = middle.translated(-middle.width(), 0); QRectF right = middle.translated(middle.width(), 0); QPainter p(&img); img.fill(Qt::white); p.setCompositionMode(QPainter::CompositionMode_Destination); for (int i = 0; i < 100000; ++i) { QPainterPath path; path.moveTo(randInRect(middle)); path.lineTo(randInRect(left)); path.lineTo(randInRect(right)); p.fillPath(path, Qt::black); } } void tst_QPainter::rasterizer_negativeCoords() { QImage img(64, 64, QImage::Format_ARGB32_Premultiplied); img.fill(0x0); QImage original = img; QPainter p(&img); p.rotate(90); p.fillRect(0, 0, 70, 50, Qt::black); // image should not have changed QCOMPARE(img.pixel(0, 0), 0x0U); QCOMPARE(img, original); } void tst_QPainter::blendOverFlow_data() { QTest::addColumn("format"); QTest::addColumn("width"); QTest::addColumn("height"); QImage::Format format = QImage::Format_ARGB8555_Premultiplied; QTest::newRow("555,1,1") << format << 1 << 1; QTest::newRow("555,2,2") << format << 2 << 2; QTest::newRow("555,10,10") << format << 10 << 10; format = QImage::Format_ARGB8565_Premultiplied; QTest::newRow("565,1,1") << format << 1 << 1; QTest::newRow("565,2,2") << format << 2 << 2; QTest::newRow("565,10,10") << format << 10 << 10; } void tst_QPainter::blendOverFlow() { QFETCH(QImage::Format, format); QFETCH(int, width); QFETCH(int, height); QImage dest(width, height, format); QImage src(width, height, format); { QPainter p(&dest); p.fillRect(0, 0, width, height, Qt::green); } QImage expected = dest; { QPainter p(&src); p.setCompositionMode(QPainter::CompositionMode_Source); p.fillRect(0, 0, width, height, QColor(0, 255, 0, 6)); } { QPainter p(&dest); p.drawImage(0, 0, src); } QCOMPARE(dest.pixel(0, 0), expected.pixel(0, 0)); QCOMPARE(dest, expected); } void tst_QPainter::largeImagePainting_data() { QTest::addColumn("width"); QTest::addColumn("height"); QTest::addColumn("antialiased"); QTest::newRow("tall") << 1 << 32767 << false; QTest::newRow("tall aa") << 1 << 32767 << true; QTest::newRow("wide") << 32767 << 1 << false; QTest::newRow("wide aa") << 32767 << 1 << true; } void tst_QPainter::largeImagePainting() { QPainterPath path; path.addRect(0, 0, 1, 1); path.addRect(2, 0, 1, 1); path.addRect(0, 2, 1, 1); QFETCH(int, width); QFETCH(int, height); QFETCH(bool, antialiased); QImage img(width, height, QImage::Format_ARGB32_Premultiplied); img.fill(0x0); QPainter p(&img); p.setPen(Qt::NoPen); p.setBrush(Qt::white); p.setRenderHint(QPainter::Antialiasing, antialiased); for (int i = 0; i < img.width(); i += 4) { p.drawPath(path); p.translate(4, 0); } p.resetMatrix(); for (int i = 4; i < img.height(); i += 4) { p.translate(0, 4); p.drawPath(path); } for (int i = 0; i < img.width(); ++i) { if (i % 2) QCOMPARE(img.pixel(i, 0), 0x0U); else QCOMPARE(img.pixel(i, 0), 0xffffffffU); } for (int i = 1; i < img.height(); ++i) { if (i % 2) QCOMPARE(img.pixel(0, i), 0x0U); else QCOMPARE(img.pixel(0, i), 0xffffffffU); } } void tst_QPainter::imageScaling_task206785() { QImage src(32, 2, QImage::Format_ARGB32_Premultiplied); src.fill(0xffffffff); QImage dst(128, 128, QImage::Format_ARGB32_Premultiplied); QImage expected(128, 128, QImage::Format_ARGB32_Premultiplied); expected.fill(0xffffffff); for (int i = 1; i < 5; ++i) { qreal scale = i / qreal(5); dst.fill(0xff000000); QPainter p(&dst); p.scale(dst.width() / qreal(src.width()), scale); for (int y = 0; y * scale < dst.height(); ++y) p.drawImage(0, y, src); p.end(); QCOMPARE(dst, expected); } } #define FOR_EACH_NEIGHBOR_8 for (int dx = -1; dx <= 1; ++dx) for (int dy = -1; dy <= 1; ++dy) if (dx != 0 || dy != 0) #define FOR_EACH_NEIGHBOR_4 for (int dx = -1; dx <= 1; ++dx) for (int dy = -1; dy <= 1; ++dy) if ((dx == 0) != (dy == 0)) uint qHash(const QPoint &point) { return qHash(qMakePair(point.x(), point.y())); } bool verifyOutlineFillConsistency(const QImage &img, QRgb outside, QRgb inside, QRgb outline) { if (img.pixel(img.width() / 2, img.height() / 2) != inside) return false; int x = img.width() / 2; int y = img.height() / 2; while (img.pixel(++x, y) == inside) ; if (img.pixel(x, y) != outline) return false; QQueue discovered; discovered.enqueue(QPoint(x, y)); QVector visited(img.width() * img.height()); visited.fill(false); while (!discovered.isEmpty()) { QPoint p = discovered.dequeue(); QRgb pixel = img.pixel(p.x(), p.y()); bool &v = visited[p.y() * img.width() + p.x()]; if (v) continue; v = true; if (pixel == outline) { FOR_EACH_NEIGHBOR_8 { QPoint x(p.x() + dx, p.y() + dy); discovered.enqueue(x); } } else { FOR_EACH_NEIGHBOR_4 { if ((dx == 0) == (dy == 0)) continue; QRgb neighbor = img.pixel(p.x() + dx, p.y() + dy); if (pixel == inside && neighbor == outside || pixel == outside && neighbor == inside) return false; } } } return true; } #undef FOR_EACH_NEIGHBOR_8 #undef FOR_EACH_NEIGHBOR_4 void tst_QPainter::outlineFillConsistency() { QImage dst(256, 256, QImage::Format_ARGB32_Premultiplied); QPolygonF poly; poly << QPointF(5, -100) << QPointF(-70, 20) << QPointF(95, 25); QPen pen(Qt::red); QBrush brush(Qt::black); QRgb background = 0xffffffff; for (int i = 0; i < 360; ++i) { dst.fill(background); QPainter p(&dst); p.translate(dst.width() / 2, dst.height() / 2); QPolygonF copy = poly; for (int j = 0; j < copy.size(); ++j) copy[j] = QTransform().rotate(i).map(copy[j]); p.setPen(pen); p.setBrush(brush); p.drawPolygon(copy); p.end(); #if 0 if (!verifyOutlineFillConsistency(dst, background, p.brush().color().rgba(), p.pen().color().rgba())) dst.save(QString("outlineFillConsistency-%1.png").arg(i)); #endif QVERIFY(verifyOutlineFillConsistency(dst, background, brush.color().rgba(), pen.color().rgba())); } } void tst_QPainter::drawImage_task217400_data() { QTest::addColumn("format"); QTest::newRow("444") << QImage::Format_ARGB4444_Premultiplied; QTest::newRow("555") << QImage::Format_ARGB8555_Premultiplied; QTest::newRow("565") << QImage::Format_ARGB8565_Premultiplied; // QTest::newRow("666") << QImage::Format_ARGB6666_Premultiplied; QTest::newRow("888p") << QImage::Format_ARGB32_Premultiplied; QTest::newRow("888") << QImage::Format_ARGB32; } void tst_QPainter::drawImage_task217400() { QFETCH(QImage::Format, format); const QImage src = QImage(QString(SRCDIR) + "/task217400.png") .convertToFormat(format); QVERIFY(!src.isNull()); QImage expected(src.size(), format); { QPainter p(&expected); p.fillRect(0, 0, expected.width(), expected.height(), Qt::white); p.drawImage(0, 0, src); } for (int i = 1; i <= 4; ++i) { QImage dest(src.width() + i, src.height(), format); { QPainter p(&dest); p.fillRect(0, 0, dest.width(), dest.height(), Qt::white); p.drawImage(i, 0, src); } const QImage result = dest.copy(i, 0, src.width(), src.height()); #if 0 if (result != expected) { qDebug("i=%i", i); result.save("result.png"); expected.save("expected.png"); } #endif QCOMPARE(result, expected); } } void tst_QPainter::clipRectSaveRestore() { QImage img(64, 64, QImage::Format_ARGB32_Premultiplied); img.fill(0x0); QPainter p(&img); p.setClipRect(QRect(0, 0, 10, 10)); p.save(); p.setClipRect(QRect(5, 5, 5, 5), Qt::IntersectClip); p.restore(); p.fillRect(0, 0, 64, 64, Qt::black); p.end(); QCOMPARE(img.pixel(0, 0), QColor(Qt::black).rgba()); } void tst_QPainter::clippedImage() { QImage img(16, 16, QImage::Format_ARGB32_Premultiplied); img.fill(0x0); QImage src(16, 16, QImage::Format_RGB32); src.fill(QColor(Qt::red).rgba()); QPainter p(&img); p.setClipRect(QRect(1, 1, 14, 14)); p.drawImage(0, 0, src); p.end(); QCOMPARE(img.pixel(0, 0), 0x0U); QCOMPARE(img.pixel(1, 1), src.pixel(1, 1)); } void tst_QPainter::stateResetBetweenQPainters() { QImage img(16, 16, QImage::Format_ARGB32); { QPainter p(&img); p.setCompositionMode(QPainter::CompositionMode_Source); p.fillRect(0, 0, 16, 16, Qt::red); } { QPainter p2(&img); p2.fillRect(0, 0, 16, 16, QColor(0, 0, 255, 63)); } img.save("foo.png"); QVERIFY(img.pixel(0, 0) != qRgba(0, 0, 255, 63)); QVERIFY(qRed(img.pixel(0, 0)) > 0); // We didn't erase the red channel... QVERIFY(qBlue(img.pixel(0, 0)) < 255); // We blended the blue channel } void tst_QPainter::drawRect_task215378() { QImage img(11, 11, QImage::Format_ARGB32_Premultiplied); img.fill(QColor(Qt::white).rgba()); QPainter p(&img); p.setPen(QColor(127, 127, 127, 127)); p.drawRect(0, 0, 10, 10); p.end(); QCOMPARE(img.pixel(0, 0), img.pixel(1, 0)); QCOMPARE(img.pixel(0, 0), img.pixel(0, 1)); QVERIFY(img.pixel(0, 0) != img.pixel(1, 1)); } void tst_QPainter::drawRect_task247505() { QImage a(10, 10, QImage::Format_ARGB32_Premultiplied); a.fill(0); QImage b = a; QPainter p(&a); p.setPen(Qt::NoPen); p.setBrush(Qt::black); p.drawRect(QRectF(10, 0, -10, 10)); p.end(); p.begin(&b); p.setPen(Qt::NoPen); p.setBrush(Qt::black); p.drawRect(QRectF(0, 0, 10, 10)); p.end(); QCOMPARE(a, b); } void tst_QPainter::drawImage_data() { QTest::addColumn("x"); QTest::addColumn("y"); QTest::addColumn("w"); QTest::addColumn("h"); QTest::addColumn("srcFormat"); QTest::addColumn("dstFormat"); for (int srcFormat = QImage::Format_Mono; srcFormat < QImage::NImageFormats; ++srcFormat) { for (int dstFormat = QImage::Format_Mono; dstFormat < QImage::NImageFormats; ++dstFormat) { if (dstFormat == QImage::Format_Indexed8) continue; for (int odd_x = 0; odd_x <= 1; ++odd_x) { for (int odd_width = 0; odd_width <= 1; ++odd_width) { QString description = QString("srcFormat %1, dstFormat %2, odd x: %3, odd width: %4") .arg(srcFormat).arg(dstFormat).arg(odd_x).arg(odd_width); QTest::newRow(qPrintable(description)) << (10 + odd_x) << 10 << (20 + odd_width) << 20 << QImage::Format(srcFormat) << QImage::Format(dstFormat); } } } } } bool verifyImage(const QImage &img, int x, int y, int w, int h, uint background) { int imgWidth = img.width(); int imgHeight = img.height(); for (int i = 0; i < imgHeight; ++i) { for (int j = 0; j < imgWidth; ++j) { uint pixel = img.pixel(j, i); bool outside = j < x || j >= (x + w) || i < y || i >= (y + h); if (outside != (pixel == background)) { //printf("%d %d, expected %x, got %x, outside: %d\n", x, y, background, pixel, outside); return false; } } } return true; } void tst_QPainter::drawImage() { QFETCH(int, x); QFETCH(int, y); QFETCH(int, w); QFETCH(int, h); QFETCH(QImage::Format, srcFormat); QFETCH(QImage::Format, dstFormat); QImage dst(40, 40, QImage::Format_RGB32); dst.fill(0xffffffff); dst = dst.convertToFormat(dstFormat); uint background = dst.pixel(0, 0); QImage src(w, h, QImage::Format_RGB32); src.fill(0xff000000); src = src.convertToFormat(srcFormat); QPainter p(&dst); p.drawImage(x, y, src); p.end(); QVERIFY(verifyImage(dst, x, y, w, h, background)); } void tst_QPainter::imageCoordinateLimit() { QImage img(64, 40000, QImage::Format_MonoLSB); QPainter p(&img); p.drawText(10, 36000, QLatin1String("foo")); p.setPen(QPen(Qt::black, 2)); p.drawLine(10, 0, 60, 40000); p.setRenderHint(QPainter::Antialiasing); p.drawLine(10, 0, 60, 40000); } void tst_QPainter::imageBlending_data() { QTest::addColumn("sourceFormat"); QTest::addColumn("destFormat"); QTest::addColumn("error"); int error_rgb565 = ((1<<3) + (1<<2) + (1<<3)); QTest::newRow("rgb565_on_rgb565") << QImage::Format_RGB16 << QImage::Format_RGB16 << 0; QTest::newRow("argb8565_on_rgb565") << QImage::Format_ARGB8565_Premultiplied << QImage::Format_RGB16 << error_rgb565; QTest::newRow("rgb32_on_rgb565") << QImage::Format_RGB32 << QImage::Format_RGB16 << error_rgb565; QTest::newRow("argb32pm_on_rgb565") << QImage::Format_ARGB32_Premultiplied << QImage::Format_RGB16 << error_rgb565; } int diffColor(quint32 ap, quint32 bp) { int a = qAlpha(ap) - qAlpha(bp); int r = qRed(ap) - qRed(bp); int b = qBlue(ap) - qBlue(bp); int g = qBlue(ap) - qBlue(bp); return qAbs(a) + qAbs(r) + qAbs(g) + qAbs(b); } // this test assumes premultiplied pixels... void tst_QPainter::imageBlending() { QFETCH(QImage::Format, sourceFormat); QFETCH(QImage::Format, destFormat); QFETCH(int, error); QImage dest; { QImage orig_dest(6, 6, QImage::Format_ARGB32_Premultiplied); orig_dest.fill(0); QPainter p(&orig_dest); p.fillRect(0, 0, 6, 3, QColor::fromRgbF(1, 0, 0)); p.fillRect(3, 0, 3, 6, QColor::fromRgbF(0, 0, 1, 0.5)); p.end(); dest = orig_dest.convertToFormat(destFormat); // An image like this: (r = red, m = magenta, b = light alpha blue, 0 = transparent) // r r r m m m // r r r m m m // r r r m m m // 0 0 0 b b b // 0 0 0 b b b // 0 0 0 b b b } QImage source; { QImage orig_source(6, 6, QImage::Format_ARGB32_Premultiplied); orig_source.fill(0); QPainter p(&orig_source); p.fillRect(1, 1, 4, 4, QColor::fromRgbF(0, 1, 0, 0.5)); p.fillRect(2, 2, 2, 2, QColor::fromRgbF(0, 1, 0)); p.end(); source = orig_source.convertToFormat(sourceFormat); // An image like this: (0 = transparent, . = green at 0.5 alpha, g = opaque green. // 0 0 0 0 0 0 // 0 . . . . 0 // 0 . g g . 0 // 0 . g g . 0 // 0 . . . . 0 // 0 0 0 0 0 0 } QPainter p(&dest); p.drawImage(0, 0, source); p.end(); // resulting image: // r r r m m m // r r. r. m. m. m // r r. g g m. m // 0 . g g b. b // 0 . . b. b. b // 0 0 0 b b b // the g pixels, always green.. QVERIFY(diffColor(dest.pixel(2, 2), 0xff00ff00) <= error); // g if (source.hasAlphaChannel()) { QVERIFY(diffColor(dest.pixel(0, 0), 0xffff0000) <= error); // r QVERIFY(diffColor(dest.pixel(5, 0), 0xff7f007f) <= error); // m QVERIFY(diffColor(dest.pixel(1, 1), 0xff7f7f00) <= error); // r. QVERIFY(diffColor(dest.pixel(4, 1), 0xff3f7f3f) <= error); // m. if (dest.hasAlphaChannel()) { QVERIFY(diffColor(dest.pixel(1, 3), 0x7f007f00) <= error); // . QVERIFY(diffColor(dest.pixel(4, 3), 0x7f007f3f) <= error); // b. QVERIFY(diffColor(dest.pixel(4, 3), 0x7f007f3f) <= error); // b. QVERIFY(diffColor(dest.pixel(4, 4), 0x7f00007f) <= error); // b QVERIFY(diffColor(dest.pixel(4, 0), 0) <= 0); // 0 } } else { QVERIFY(diffColor(dest.pixel(0, 0), 0xff000000) <= 0); QVERIFY(diffColor(dest.pixel(1, 1), 0xff007f00) <= error); } } void tst_QPainter::imageBlending_clipped() { QImage src(20, 20, QImage::Format_RGB16); QPainter p(&src); p.fillRect(src.rect(), Qt::red); p.end(); QImage dst(40, 20, QImage::Format_RGB16); p.begin(&dst); p.fillRect(dst.rect(), Qt::white); p.end(); QImage expected = dst; p.begin(&dst); p.setClipRect(QRect(23, 0, 20, 20)); // should be completely clipped p.drawImage(QRectF(3, 0, 20, 20), src); p.end(); // dst should be left unchanged QCOMPARE(dst, expected); } void tst_QPainter::paintOnNullPixmap() { QPixmap pix(16, 16); QPixmap textPixmap; QPainter p(&textPixmap); p.drawPixmap(10, 10, pix); p.end(); QPixmap textPixmap2(16,16); p.begin(&textPixmap2); p.end(); } void tst_QPainter::checkCompositionMode() { QImage refImage(50,50,QImage::Format_ARGB32); QPainter painter(&refImage); painter.fillRect(QRect(0,0,50,50),Qt::blue); QImage testImage(50,50,QImage::Format_ARGB32); QPainter p(&testImage); p.fillRect(QRect(0,0,50,50),Qt::red); p.save(); p.setCompositionMode(QPainter::CompositionMode_SourceOut); p.restore(); p.fillRect(QRect(0,0,50,50),Qt::blue); QCOMPARE(refImage.pixel(20,20),testImage.pixel(20,20)); } static QLinearGradient inverseGradient(QLinearGradient g) { QLinearGradient g2 = g; QGradientStops stops = g.stops(); QGradientStops inverse; foreach (QGradientStop stop, stops) inverse << QGradientStop(1 - stop.first, stop.second); g2.setStops(inverse); return g2; } void tst_QPainter::linearGradientSymmetry() { QImage a(64, 8, QImage::Format_ARGB32_Premultiplied); QImage b(64, 8, QImage::Format_ARGB32_Premultiplied); a.fill(0); b.fill(0); QLinearGradient gradient(QRectF(b.rect()).topLeft(), QRectF(b.rect()).topRight()); gradient.setColorAt(0.0, Qt::blue); gradient.setColorAt(0.2, QColor(220, 220, 220, 0)); gradient.setColorAt(0.6, Qt::red); gradient.setColorAt(0.9, QColor(220, 220, 220, 255)); gradient.setColorAt(1.0, Qt::black); QPainter pa(&a); pa.fillRect(a.rect(), gradient); pa.end(); QPainter pb(&b); pb.fillRect(b.rect(), inverseGradient(gradient)); pb.end(); b = b.mirrored(true); QCOMPARE(a, b); } void tst_QPainter::gradientInterpolation() { QImage image(256, 8, QImage::Format_ARGB32_Premultiplied); QPainter painter; QLinearGradient gradient(QRectF(image.rect()).topLeft(), QRectF(image.rect()).topRight()); gradient.setColorAt(0.0, QColor(255, 0, 0, 0)); gradient.setColorAt(1.0, Qt::blue); image.fill(0); painter.begin(&image); painter.fillRect(image.rect(), gradient); painter.end(); const QRgb *line = reinterpret_cast(image.scanLine(3)); for (int i = 0; i < 256; ++i) { QCOMPARE(qAlpha(line[i]), qBlue(line[i])); // bright blue QVERIFY(qAbs(qAlpha(line[i]) - i) < 3); // linear alpha QCOMPARE(qRed(line[i]), 0); // no red component QCOMPARE(qGreen(line[i]), 0); // no green component } gradient.setInterpolationMode(QGradient::ComponentInterpolation); image.fill(0); painter.begin(&image); painter.fillRect(image.rect(), gradient); painter.end(); for (int i = 1; i < 256; ++i) { if (i < 128) { QVERIFY(qRed(line[i]) >= qBlue(line[i])); // red is dominant } else { QVERIFY(qRed(line[i]) <= qBlue(line[i])); // blue is dominant } QVERIFY((qRed(line[i]) - 0.5) * (qAlpha(line[i - 1]) - 0.5) <= (qRed(line[i - 1]) + 0.5) * (qAlpha(line[i]) + 0.5)); // decreasing red QVERIFY((qBlue(line[i]) + 0.5) * (qAlpha(line[i - 1]) + 0.5) >= (qBlue(line[i - 1]) - 0.5) * (qAlpha(line[i]) - 0.5)); // increasing blue QVERIFY(qAbs(qAlpha(line[i]) - i) < 3); // linear alpha QCOMPARE(qGreen(line[i]), 0); // no green component } } void tst_QPainter::drawPolygon() { QImage img(128, 128, QImage::Format_ARGB32_Premultiplied); QPainterPathStroker stroker; stroker.setWidth(1.5); QPainterPath path; path.moveTo(2, 34); path.lineTo(34, 2); QPolygonF poly = stroker.createStroke(path).toFillPolygon(); img.fill(0xffffffff); QPainter p(&img); p.setRenderHint(QPainter::Antialiasing); p.setBrush(Qt::red); p.setPen(Qt::NoPen); p.drawPolygon(poly); p.translate(64, 64); p.drawPolygon(poly); p.end(); QImage a = img.copy(); img.fill(0xffffffff); p.begin(&img); p.setRenderHint(QPainter::Antialiasing); p.setBrush(Qt::red); p.setPen(Qt::NoPen); p.translate(64, 64); p.drawPolygon(poly); p.resetTransform(); p.drawPolygon(poly); p.end(); QCOMPARE(a, img); } void tst_QPainter::inactivePainter() { // This test succeeds if it doesn't segfault. QPainter p; QPainterPath path; QRegion region(QRect(20, 20, 60, 40)); QPolygonF polygon(QVector() << QPointF(0, 0) << QPointF(12, 0) << QPointF(8, 6)); path.addPolygon(polygon); p.save(); p.restore(); p.background(); p.setBackground(QBrush(Qt::blue)); p.brush(); p.setBrush(Qt::red); p.setBrush(Qt::NoBrush); p.setBrush(QBrush(Qt::white, Qt::DiagCrossPattern)); p.backgroundMode(); p.setBackgroundMode(Qt::OpaqueMode); p.boundingRect(QRectF(0, 0, 100, 20), Qt::AlignCenter, QLatin1String("Hello, World!")); p.boundingRect(QRect(0, 0, 100, 20), Qt::AlignCenter, QLatin1String("Hello, World!")); p.brushOrigin(); p.setBrushOrigin(QPointF(12, 34)); p.setBrushOrigin(QPoint(12, 34)); p.clipPath(); p.clipRegion(); p.hasClipping(); p.setClipPath(path); p.setClipRect(QRectF(42, 42, 42, 42)); p.setClipRect(QRect(42, 42, 42, 42)); p.setClipRegion(region); p.setClipping(true); p.combinedMatrix(); p.combinedTransform(); p.compositionMode(); p.setCompositionMode(QPainter::CompositionMode_Plus); p.device(); p.deviceMatrix(); p.deviceTransform(); p.font(); p.setFont(QFont(QLatin1String("Times"), 24)); p.fontInfo(); p.fontMetrics(); p.layoutDirection(); p.setLayoutDirection(Qt::RightToLeft); p.opacity(); p.setOpacity(0.75); p.pen(); p.setPen(QPen(Qt::red)); p.setPen(Qt::green); p.setPen(Qt::NoPen); p.renderHints(); p.setRenderHint(QPainter::Antialiasing, true); p.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform, false); p.resetMatrix(); p.resetTransform(); p.rotate(1); p.scale(2, 2); p.shear(-1, 1); p.translate(3, 14); p.viewTransformEnabled(); p.setViewTransformEnabled(true); p.viewport(); p.setViewport(QRect(10, 10, 620, 460)); p.window(); p.setWindow(QRect(10, 10, 620, 460)); p.worldMatrix(); p.setWorldMatrix(QMatrix().translate(43, 21), true); p.setWorldMatrixEnabled(true); p.transform(); p.setTransform(QTransform().translate(12, 34), true); p.worldTransform(); p.setWorldTransform(QTransform().scale(0.5, 0.5), true); } bool testCompositionMode(int src, int dst, int expected, QPainter::CompositionMode op) { QImage actual(1, 1, QImage::Format_ARGB32_Premultiplied); actual.fill(QColor(dst, dst, dst).rgb()); QPainter p(&actual); p.setCompositionMode(op); p.fillRect(0, 0, 1, 1, QColor(src, src, src)); p.end(); if (qRed(actual.pixel(0, 0)) != expected) { qDebug("Fail: mode %d, src[%d] dst [%d] actual [%d] expected [%d]", op, src, dst, qRed(actual.pixel(0, 0)), expected); return false; } else { return true; } } void tst_QPainter::extendedBlendModes() { QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_Plus)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_Plus)); QVERIFY(testCompositionMode(127, 128, 255, QPainter::CompositionMode_Plus)); QVERIFY(testCompositionMode(127, 0, 127, QPainter::CompositionMode_Plus)); QVERIFY(testCompositionMode( 0, 127, 127, QPainter::CompositionMode_Plus)); QVERIFY(testCompositionMode(255, 0, 255, QPainter::CompositionMode_Plus)); QVERIFY(testCompositionMode( 0, 255, 255, QPainter::CompositionMode_Plus)); QVERIFY(testCompositionMode(128, 128, 255, QPainter::CompositionMode_Plus)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_Multiply)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_Multiply)); QVERIFY(testCompositionMode(127, 255, 127, QPainter::CompositionMode_Multiply)); QVERIFY(testCompositionMode(255, 127, 127, QPainter::CompositionMode_Multiply)); QVERIFY(testCompositionMode( 63, 255, 63, QPainter::CompositionMode_Multiply)); QVERIFY(testCompositionMode(255, 63, 63, QPainter::CompositionMode_Multiply)); QVERIFY(testCompositionMode(127, 127, 63, QPainter::CompositionMode_Multiply)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_Screen)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_Screen)); QVERIFY(testCompositionMode( 63, 255, 255, QPainter::CompositionMode_Screen)); QVERIFY(testCompositionMode(255, 63, 255, QPainter::CompositionMode_Screen)); QVERIFY(testCompositionMode( 63, 0, 63, QPainter::CompositionMode_Screen)); QVERIFY(testCompositionMode( 0, 63, 63, QPainter::CompositionMode_Screen)); QVERIFY(testCompositionMode(127, 127, 191, QPainter::CompositionMode_Screen)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_Overlay)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_Overlay)); QVERIFY(testCompositionMode( 63, 63, 31, QPainter::CompositionMode_Overlay)); QVERIFY(testCompositionMode( 63, 255, 255, QPainter::CompositionMode_Overlay)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_Darken)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_Darken)); QVERIFY(testCompositionMode( 63, 63, 63, QPainter::CompositionMode_Darken)); QVERIFY(testCompositionMode( 63, 255, 63, QPainter::CompositionMode_Darken)); QVERIFY(testCompositionMode(255, 63, 63, QPainter::CompositionMode_Darken)); QVERIFY(testCompositionMode( 63, 127, 63, QPainter::CompositionMode_Darken)); QVERIFY(testCompositionMode(127, 63, 63, QPainter::CompositionMode_Darken)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_Lighten)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_Lighten)); QVERIFY(testCompositionMode( 63, 63, 63, QPainter::CompositionMode_Lighten)); QVERIFY(testCompositionMode( 63, 255, 255, QPainter::CompositionMode_Lighten)); QVERIFY(testCompositionMode(255, 63, 255, QPainter::CompositionMode_Lighten)); QVERIFY(testCompositionMode( 63, 127, 127, QPainter::CompositionMode_Lighten)); QVERIFY(testCompositionMode(127, 63, 127, QPainter::CompositionMode_Lighten)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_ColorDodge)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_ColorDodge)); QVERIFY(testCompositionMode( 63, 127, 169, QPainter::CompositionMode_ColorDodge)); QVERIFY(testCompositionMode(191, 127, 255, QPainter::CompositionMode_ColorDodge)); QVERIFY(testCompositionMode(127, 191, 255, QPainter::CompositionMode_ColorDodge)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_ColorBurn)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_ColorBurn)); QVERIFY(testCompositionMode(127, 127, 0, QPainter::CompositionMode_ColorBurn)); QVERIFY(testCompositionMode(128, 128, 2, QPainter::CompositionMode_ColorBurn)); QVERIFY(testCompositionMode(191, 127, 84, QPainter::CompositionMode_ColorBurn)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_HardLight)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_HardLight)); QVERIFY(testCompositionMode(127, 127, 127, QPainter::CompositionMode_HardLight)); QVERIFY(testCompositionMode( 63, 63, 31, QPainter::CompositionMode_HardLight)); QVERIFY(testCompositionMode(127, 63, 63, QPainter::CompositionMode_HardLight)); QVERIFY(testCompositionMode(255, 255, 255, QPainter::CompositionMode_SoftLight)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_SoftLight)); QVERIFY(testCompositionMode(127, 127, 127, QPainter::CompositionMode_SoftLight)); QVERIFY(testCompositionMode( 63, 63, 86, QPainter::CompositionMode_SoftLight)); QVERIFY(testCompositionMode(127, 63, 63, QPainter::CompositionMode_SoftLight)); QVERIFY(testCompositionMode(255, 255, 0, QPainter::CompositionMode_Difference)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_Difference)); QVERIFY(testCompositionMode(255, 0, 255, QPainter::CompositionMode_Difference)); QVERIFY(testCompositionMode(127, 127, 0, QPainter::CompositionMode_Difference)); QVERIFY(testCompositionMode(127, 128, 1, QPainter::CompositionMode_Difference)); QVERIFY(testCompositionMode(127, 63, 64, QPainter::CompositionMode_Difference)); QVERIFY(testCompositionMode( 0, 127, 127, QPainter::CompositionMode_Difference)); QVERIFY(testCompositionMode(255, 255, 0, QPainter::CompositionMode_Exclusion)); QVERIFY(testCompositionMode( 0, 0, 0, QPainter::CompositionMode_Exclusion)); QVERIFY(testCompositionMode(255, 0, 255, QPainter::CompositionMode_Exclusion)); QVERIFY(testCompositionMode(127, 127, 127, QPainter::CompositionMode_Exclusion)); QVERIFY(testCompositionMode( 63, 127, 127, QPainter::CompositionMode_Exclusion)); QVERIFY(testCompositionMode( 63, 63, 95, QPainter::CompositionMode_Exclusion)); QVERIFY(testCompositionMode(191, 191, 96, QPainter::CompositionMode_Exclusion)); } void tst_QPainter::zeroOpacity() { QImage source(1, 1, QImage::Format_ARGB32_Premultiplied); source.fill(0xffffffff); QImage target(1, 1, QImage::Format_RGB32); target.fill(0xff000000); QPainter p(&target); p.setOpacity(0.0); p.drawImage(0, 0, source); p.end(); QCOMPARE(target.pixel(0, 0), 0xff000000); } void tst_QPainter::emptyClip() { QImage img(64, 64, QImage::Format_ARGB32_Premultiplied); QPainter p(&img); p.setRenderHints(QPainter::Antialiasing); p.setClipRect(0, 32, 64, 0); p.fillRect(0, 0, 64, 64, Qt::white); QPainterPath path; path.lineTo(64, 0); path.lineTo(64, 64); path.lineTo(40, 64); path.lineTo(40, 80); path.lineTo(0, 80); p.fillPath(path, Qt::green); } QTEST_MAIN(tst_QPainter) #include "tst_qpainter.moc"