diff options
Diffstat (limited to 'src/gui/text/qfontengine_mac.mm')
| -rw-r--r-- | src/gui/text/qfontengine_mac.mm | 132 |
1 files changed, 80 insertions, 52 deletions
diff --git a/src/gui/text/qfontengine_mac.mm b/src/gui/text/qfontengine_mac.mm index 943e3ab..f32810b 100644 --- a/src/gui/text/qfontengine_mac.mm +++ b/src/gui/text/qfontengine_mac.mm @@ -1,7 +1,6 @@ /**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the QtGui module of the Qt Toolkit. @@ -21,9 +20,10 @@ ** 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. +** 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. @@ -135,12 +135,12 @@ QCoreTextFontEngineMulti::QCoreTextFontEngineMulti(const ATSFontFamilyRef &, con symbolicTraits |= kCTFontItalicTrait; break; } - + QCFString name; ATSFontGetName(atsFontRef, kATSOptionFlagsDefault, &name); - QCFType<CTFontDescriptorRef> descriptor = CTFontDescriptorCreateWithNameAndSize(name, fontDef.pixelSize); - QCFType<CTFontRef> baseFont = CTFontCreateWithFontDescriptor(descriptor, fontDef.pixelSize, 0); - ctfont = CTFontCreateCopyWithSymbolicTraits(baseFont, fontDef.pixelSize, 0, symbolicTraits, symbolicTraits); + QCFType<CTFontDescriptorRef> descriptor = CTFontDescriptorCreateWithNameAndSize(name, fontDef.pointSize); + QCFType<CTFontRef> baseFont = CTFontCreateWithFontDescriptor(descriptor, fontDef.pointSize, 0); + ctfont = CTFontCreateCopyWithSymbolicTraits(baseFont, fontDef.pointSize, 0, symbolicTraits, symbolicTraits); // CTFontCreateCopyWithSymbolicTraits returns NULL if we ask for a trait that does // not exist for the given font. (for example italic) @@ -162,7 +162,7 @@ QCoreTextFontEngineMulti::QCoreTextFontEngineMulti(const ATSFontFamilyRef &, con QCoreTextFontEngine *fe = new QCoreTextFontEngine(ctfont, fontDef, this); fe->ref.ref(); engines.append(fe); - + } QCoreTextFontEngineMulti::~QCoreTextFontEngineMulti() @@ -176,7 +176,7 @@ uint QCoreTextFontEngineMulti::fontIndexForFont(CTFontRef id) const if (CFEqual(engineAt(i)->ctfont, id)) return i; } - + QCoreTextFontEngineMulti *that = const_cast<QCoreTextFontEngineMulti *>(this); QCoreTextFontEngine *fe = new QCoreTextFontEngine(id, fontDef, that); fe->ref.ref(); @@ -227,7 +227,7 @@ bool QCoreTextFontEngineMulti::stringToCMap(const QChar *str, int len, QGlyphLay CTFontRef runFont = static_cast<CTFontRef>(CFDictionaryGetValue(runAttribs, NSFontAttributeName)); const uint fontIndex = (fontIndexForFont(runFont) << 24); //NSLog(@"Run Font Name = %@", CTFontCopyFamilyName(runFont)); - QVarLengthArray<CGGlyph, 512> cgglyphs(0); + QVarLengthArray<CGGlyph, 512> cgglyphs(0); const CGGlyph *tmpGlyphs = CTRunGetGlyphsPtr(run); if (!tmpGlyphs) { cgglyphs.resize(glyphCount); @@ -260,7 +260,7 @@ bool QCoreTextFontEngineMulti::stringToCMap(const QChar *str, int len, QGlyphLay CFIndex k = 0; CFIndex i = 0; - for (i = stringRange.location; + for (i = stringRange.location; (i < stringRange.location + stringRange.length) && (k < glyphCount); ++i) { if (tmpIndices[k * rtlSign + rtlOffset] == i || i == stringRange.location) { logClusters[i] = k + firstGlyphIndex; @@ -425,28 +425,28 @@ void QCoreTextFontEngine::draw(CGContextRef ctx, qreal x, qreal y, const QTextIt getGlyphPositions(ti.glyphs, matrix, ti.flags, glyphs, positions); if (glyphs.size() == 0) return; - + CGContextSetFontSize(ctx, fontDef.pixelSize); - + CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx); - + CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, -1, 0, -paintDeviceHeight); - + CGAffineTransformConcat(cgMatrix, oldTextMatrix); - + if (synthesisFlags & QFontEngine::SynthesizedItalic) cgMatrix = CGAffineTransformConcat(cgMatrix, CGAffineTransformMake(1, 0, -tanf(14 * acosf(0) / 90), 1, 0, 0)); - + // ### cgMatrix = CGAffineTransformConcat(cgMatrix, transform); - + CGContextSetTextMatrix(ctx, cgMatrix); - + CGContextSetTextDrawingMode(ctx, kCGTextFill); - - + + QVarLengthArray<CGSize> advances(glyphs.size()); QVarLengthArray<CGGlyph> cgGlyphs(glyphs.size()); - + for (int i = 0; i < glyphs.size() - 1; ++i) { advances[i].width = (positions[i + 1].x - positions[i].x).toReal(); advances[i].height = (positions[i + 1].y - positions[i].y).toReal(); @@ -455,21 +455,21 @@ void QCoreTextFontEngine::draw(CGContextRef ctx, qreal x, qreal y, const QTextIt advances[glyphs.size() - 1].width = 0; advances[glyphs.size() - 1].height = 0; cgGlyphs[glyphs.size() - 1] = glyphs[glyphs.size() - 1]; - + CGContextSetFont(ctx, cgFont); //NSLog(@"Font inDraw %@ ctfont %@", CGFontCopyFullName(cgFont), CTFontCopyFamilyName(ctfont)); - + CGContextSetTextPosition(ctx, positions[0].x.toReal(), positions[0].y.toReal()); - + CGContextShowGlyphsWithAdvances(ctx, cgGlyphs.data(), advances.data(), glyphs.size()); - + if (synthesisFlags & QFontEngine::SynthesizedBold) { CGContextSetTextPosition(ctx, positions[0].x.toReal() + 0.5 * lineThickness().toReal(), positions[0].y.toReal()); - + CGContextShowGlyphsWithAdvances(ctx, cgGlyphs.data(), advances.data(), glyphs.size()); } - + CGContextSetTextMatrix(ctx, oldTextMatrix); } @@ -540,14 +540,9 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph) im.fill(0); CGColorSpaceRef colorspace = QCoreGraphicsPaintEngine::macGenericColorSpace(); -#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4) uint cgflags = kCGImageAlphaNoneSkipFirst; #ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version - if(QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) - cgflags |= kCGBitmapByteOrder32Host; -#endif -#else - CGImageAlphaInfo cgflags = kCGImageAlphaNoneSkipFirst; + cgflags |= kCGBitmapByteOrder32Host; #endif CGContextRef ctx = CGBitmapContextCreate(im.bits(), im.width(), im.height(), 8, im.bytesPerLine(), colorspace, @@ -624,7 +619,7 @@ QFontEngine::FaceId QCoreTextFontEngine::faceId() const bool QCoreTextFontEngine::canRender(const QChar *string, int len) { - QCFType<CTFontRef> retFont = CTFontCreateForString(ctfont, + QCFType<CTFontRef> retFont = CTFontCreateForString(ctfont, QCFType<CFStringRef>(CFStringCreateWithCharactersNoCopy(0, reinterpret_cast<const UniChar *>(string), len, kCFAllocatorNull)), @@ -674,7 +669,7 @@ QFontEngineMacMulti::QFontEngineMacMulti(const ATSFontFamilyRef &atsFamily, cons } else { if (fontDef.weight >= QFont::Bold) fntStyle |= ::bold; - if (fontDef.style != QFont::StyleNormal) + if (fontDef.style != QFont::StyleNormal) fntStyle |= ::italic; FMFontStyle intrinsicStyle; @@ -957,7 +952,7 @@ bool QFontEngineMacMulti::stringToCMap(const QChar *str, int len, QGlyphLayout * tmpItem.length = charCount; tmpItem.glyphs = shaperItem.glyphs.mid(glyphIdx, glyphCount); tmpItem.log_clusters = shaperItem.log_clusters + charIdx; - if (!stringToCMapInternal(tmpItem.string + tmpItem.from, tmpItem.length, + if (!stringToCMapInternal(tmpItem.string + tmpItem.from, tmpItem.length, &tmpItem.glyphs, &glyphCount, flags, &tmpItem)) { *nglyphs = glyphIdx + glyphCount; @@ -1218,12 +1213,12 @@ QFontEngineMac::QFontEngineMac(ATSUStyle baseStyle, ATSUFontID fontID, const QFo transform = multiEngine->transform; else transform = CGAffineTransformIdentity; - + ATSUTextMeasurement metric; ATSUGetAttribute(style, kATSUAscentTag, sizeof(metric), &metric, 0); m_ascent = FixRound(metric); - + ATSUGetAttribute(style, kATSUDescentTag, sizeof(metric), &metric, 0); m_descent = FixRound(metric); @@ -1419,21 +1414,21 @@ void QFontEngineMac::addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, in addGlyphsToPathHelper(style, glyphs, positions, numGlyphs, path); } -QImage QFontEngineMac::alphaMapForGlyph(glyph_t glyph) + +/*! + Helper function for alphaMapForGlyph and alphaRGBMapForGlyph. The two are identical, except for + the subpixel antialiasing... +*/ +QImage QFontEngineMac::imageForGlyph(glyph_t glyph, int margin, bool colorful) { const glyph_metrics_t br = boundingBox(glyph); QImage im(qRound(br.width)+2, qRound(br.height)+4, QImage::Format_RGB32); - im.fill(0); + im.fill(0xff000000); CGColorSpaceRef colorspace = QCoreGraphicsPaintEngine::macGenericColorSpace(); -#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4) uint cgflags = kCGImageAlphaNoneSkipFirst; #ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version - if(QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) - cgflags |= kCGBitmapByteOrder32Host; -#endif -#else - CGImageAlphaInfo cgflags = kCGImageAlphaNoneSkipFirst; + cgflags |= kCGBitmapByteOrder32Host; #endif CGContextRef ctx = CGBitmapContextCreate(im.bits(), im.width(), im.height(), 8, im.bytesPerLine(), colorspace, @@ -1441,7 +1436,7 @@ QImage QFontEngineMac::alphaMapForGlyph(glyph_t glyph) CGContextSetFontSize(ctx, fontDef.pixelSize); CGContextSetShouldAntialias(ctx, fontDef.pointSize > qt_antialiasing_threshold && !(fontDef.styleStrategy & QFont::NoAntialias)); // turn off sub-pixel hinting - no support for that in OpenGL - CGContextSetShouldSmoothFonts(ctx, false); + CGContextSetShouldSmoothFonts(ctx, colorful); CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx); CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, 1, 0, 0); CGAffineTransformConcat(cgMatrix, oldTextMatrix); @@ -1473,6 +1468,13 @@ QImage QFontEngineMac::alphaMapForGlyph(glyph_t glyph) CGContextRelease(ctx); + return im; +} + +QImage QFontEngineMac::alphaMapForGlyph(glyph_t glyph) +{ + QImage im = imageForGlyph(glyph, 2, false); + QImage indexed(im.width(), im.height(), QImage::Format_Indexed8); QVector<QRgb> colors(256); for (int i=0; i<256; ++i) @@ -1492,6 +1494,32 @@ QImage QFontEngineMac::alphaMapForGlyph(glyph_t glyph) return indexed; } +QImage QFontEngineMac::alphaRGBMapForGlyph(glyph_t glyph, int margin, const QTransform &t) +{ + QImage im = imageForGlyph(glyph, margin, true); + + if (t.type() >= QTransform::TxScale) { + im = im.transformed(t); + } + + extern uchar qt_pow_rgb_gamma[256]; + + // gamma correct the pixels back to linear color space... + for (int y=0; y<im.height(); ++y) { + uint *pixels = (uint *) im.scanLine(y); + for (int x=0; x<im.width(); ++x) { + uint p = pixels[x]; + uint r = qt_pow_rgb_gamma[qRed(p)]; + uint g = qt_pow_rgb_gamma[qGreen(p)]; + uint b = qt_pow_rgb_gamma[qBlue(p)]; + pixels[x] = (r << 16) | (g << 8) | b | 0xff000000; + } + } + + return im; +} + + bool QFontEngineMac::canRender(const QChar *string, int len) { Q_ASSERT(false); @@ -1648,7 +1676,7 @@ QFontEngine::Properties QFontEngineMac::properties() const if (ATSFontGetTable(atsFont, MAKE_TAG('p', 'o', 's', 't'), 10, 2, &lw, 0) == noErr) lw = qFromBigEndian<quint16>(lw); props.lineWidth = lw; - + // CTFontCopyPostScriptName QCFString psName; if (ATSFontGetPostScriptName(FMGetATSFontRefFromFont(fontID), kATSOptionFlagsDefault, &psName) == noErr) @@ -1663,7 +1691,7 @@ void QFontEngineMac::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_m ATSUCreateAndCopyStyle(style, &unscaledStyle); int emSquare = properties().emSquare.toInt(); - + const int maxAttributeCount = 4; ATSUAttributeTag tags[maxAttributeCount + 1]; ByteCount sizes[maxAttributeCount + 1]; @@ -1675,7 +1703,7 @@ void QFontEngineMac::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_m sizes[attributeCount] = sizeof(size); values[attributeCount] = &size; ++attributeCount; - + Q_ASSERT(attributeCount < maxAttributeCount + 1); OSStatus err = ATSUSetAttributes(unscaledStyle, attributeCount, tags, sizes, values); Q_ASSERT(err == noErr); |