diff options
Diffstat (limited to 'src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm')
-rw-r--r-- | src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm | 90 |
1 files changed, 60 insertions, 30 deletions
diff --git a/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm b/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm index 5c46907bc5..3e553acd0a 100644 --- a/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm +++ b/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm @@ -46,8 +46,6 @@ #include <private/qimage_p.h> -#if !defined(Q_WS_MAC) || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) - QT_BEGIN_NAMESPACE static float SYNTHETIC_ITALIC_SKEW = tanf(14 * acosf(0) / 90); @@ -158,7 +156,7 @@ void QCoreTextFontEngine::init() synthesisFlags = 0; CTFontSymbolicTraits traits = CTFontGetSymbolicTraits(ctfont); -#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070 +#if defined(Q_OS_IOS) || MAC_OS_X_VERSION_MAX_ALLOWED >= 1070 if (supportsColorGlyphs() && (traits & kCTFontColorGlyphsTrait)) glyphFormat = QFontEngineGlyphCache::Raster_ARGB; else @@ -457,7 +455,9 @@ QImage QCoreTextFontEngine::imageForGlyph(glyph_t glyph, QFixed subPixelPosition br.y = QFixed::fromReal(br.y.toReal() * vscale); } - QImage im(qAbs(qRound(br.width))+2, qAbs(qRound(br.height))+2, QImage::Format_RGB32); + bool isColorGlyph = glyphFormat == QFontEngineGlyphCache::Raster_ARGB; + QImage::Format format = isColorGlyph ? QImage::Format_ARGB32_Premultiplied : QImage::Format_RGB32; + QImage im(qAbs(qRound(br.width)) + 2, qAbs(qRound(br.height)) + 2, format); im.fill(0); #ifndef Q_OS_IOS @@ -465,7 +465,7 @@ QImage QCoreTextFontEngine::imageForGlyph(glyph_t glyph, QFixed subPixelPosition #else CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB(); #endif - uint cgflags = kCGImageAlphaNoneSkipFirst; + uint cgflags = isColorGlyph ? kCGImageAlphaPremultipliedFirst : kCGImageAlphaNoneSkipFirst; #ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version cgflags |= kCGBitmapByteOrder32Host; #endif @@ -476,38 +476,49 @@ QImage QCoreTextFontEngine::imageForGlyph(glyph_t glyph, QFixed subPixelPosition CGContextSetShouldAntialias(ctx, (aa || fontDef.pointSize > antialiasingThreshold) && !(fontDef.styleStrategy & QFont::NoAntialias)); CGContextSetShouldSmoothFonts(ctx, aa); - CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx); - CGAffineTransform cgMatrix = CGAffineTransformIdentity; - CGAffineTransformConcat(cgMatrix, oldTextMatrix); + CGAffineTransform cgMatrix = CGAffineTransformIdentity; if (synthesisFlags & QFontEngine::SynthesizedItalic) cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, SYNTHETIC_ITALIC_SKEW, 1, 0, 0)); - cgMatrix = CGAffineTransformConcat(cgMatrix, transform); + if (!isColorGlyph) // CTFontDrawGlyphs incorporates the font's matrix already + cgMatrix = CGAffineTransformConcat(cgMatrix, transform); + if (m.isScaling()) cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMakeScale(m.m11(), m.m22())); - CGContextSetTextMatrix(ctx, cgMatrix); - CGContextSetRGBFillColor(ctx, 1, 1, 1, 1); - CGContextSetTextDrawingMode(ctx, kCGTextFill); - - CGContextSetFont(ctx, cgFont); - + CGGlyph cgGlyph = glyph; qreal pos_x = -br.x.truncate() + subPixelPosition.toReal(); qreal pos_y = im.height() + br.y.toReal(); - CGContextSetTextPosition(ctx, pos_x, pos_y); - CGSize advance; - advance.width = 0; - advance.height = 0; - CGGlyph cgGlyph = glyph; - CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1); + if (!isColorGlyph) { + CGContextSetTextMatrix(ctx, cgMatrix); + CGContextSetRGBFillColor(ctx, 1, 1, 1, 1); + CGContextSetTextDrawingMode(ctx, kCGTextFill); + CGContextSetFont(ctx, cgFont); + CGContextSetTextPosition(ctx, pos_x, pos_y); - if (synthesisFlags & QFontEngine::SynthesizedBold) { - CGContextSetTextPosition(ctx, pos_x + 0.5 * lineThickness().toReal(), pos_y); - CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1); + CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &CGSizeZero, 1); + + if (synthesisFlags & QFontEngine::SynthesizedBold) { + CGContextSetTextPosition(ctx, pos_x + 0.5 * lineThickness().toReal(), pos_y); + CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &CGSizeZero, 1); + } } +#if defined(Q_OS_IOS) || MAC_OS_X_VERSION_MAX_ALLOWED >= 1070 + else if (supportsColorGlyphs()) { + // CGContextSetTextMatrix does not work with color glyphs, so we use + // the CTM instead. This means we must translate the CTM as well, to + // set the glyph position, instead of using CGContextSetTextPosition. + CGContextTranslateCTM(ctx, pos_x, pos_y); + CGContextConcatCTM(ctx, cgMatrix); + + // CGContextShowGlyphsWithAdvances does not support the 'sbix' color-bitmap + // glyphs in the Apple Color Emoji font, so we use CTFontDrawGlyphs instead. + CTFontDrawGlyphs(ctfont, &cgGlyph, &CGPointZero, 1, ctx); + } +#endif CGContextRelease(ctx); CGColorSpaceRelease(colorspace); @@ -517,7 +528,15 @@ QImage QCoreTextFontEngine::imageForGlyph(glyph_t glyph, QFixed subPixelPosition QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition) { - QImage im = imageForGlyph(glyph, subPixelPosition, false, QTransform()); + return alphaMapForGlyph(glyph, subPixelPosition, QTransform()); +} + +QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosition, const QTransform &x) +{ + if (x.type() > QTransform::TxScale) + return QFontEngine::alphaMapForGlyph(glyph, subPixelPosition, x); + + QImage im = imageForGlyph(glyph, subPixelPosition, false, x); QImage indexed(im.width(), im.height(), QImage::Format_Indexed8); QVector<QRgb> colors(256); @@ -548,6 +567,14 @@ QImage QCoreTextFontEngine::alphaRGBMapForGlyph(glyph_t glyph, QFixed subPixelPo return im; } +QImage QCoreTextFontEngine::bitmapForGlyph(glyph_t glyph, QFixed subPixelPosition, const QTransform &t) +{ + if (t.type() > QTransform::TxScale) + return QFontEngine::bitmapForGlyph(glyph, subPixelPosition, t); + + return imageForGlyph(glyph, subPixelPosition, true, t); +} + void QCoreTextFontEngine::recalcAdvances(QGlyphLayout *glyphs, QFontEngine::ShaperFlags flags) const { int i, numGlyphs = glyphs->numGlyphs; @@ -609,12 +636,15 @@ QFontEngine *QCoreTextFontEngine::cloneWithSize(qreal pixelSize) const return new QCoreTextFontEngine(cgFont, newFontDef); } -bool QCoreTextFontEngine::supportsTransformations(const QTransform &transform) const +bool QCoreTextFontEngine::supportsTransformation(const QTransform &transform) const { - return transform.type() > QTransform::TxTranslate; + if (transform.type() < QTransform::TxScale) + return true; + else if (transform.type() == QTransform::TxScale && + transform.m11() >= 0 && transform.m22() >= 0) + return true; + else + return false; } QT_END_NAMESPACE - -#endif// !defined(Q_WS_MAC) || (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) - |