diff options
| -rw-r--r-- | src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm | 323 | ||||
| -rw-r--r-- | src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h | 34 |
2 files changed, 0 insertions, 357 deletions
diff --git a/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm b/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm index f71dcc2355..687ddb2486 100644 --- a/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm +++ b/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm @@ -77,329 +77,6 @@ static void loadAdvancesForGlyphs(CTFontRef ctfont, } } -QCoreTextFontEngineMulti::QCoreTextFontEngineMulti(const QCFString &name, const QFontDef &fontDef, bool kerning) - : QFontEngineMulti(0) -{ - this->fontDef = fontDef; - CTFontSymbolicTraits symbolicTraits = 0; - if (fontDef.weight >= QFont::Bold) - symbolicTraits |= kCTFontBoldTrait; - switch (fontDef.style) { - case QFont::StyleNormal: - break; - case QFont::StyleItalic: - case QFont::StyleOblique: - symbolicTraits |= kCTFontItalicTrait; - break; - } - - transform = CGAffineTransformIdentity; - if (fontDef.stretch != 100) { - transform = CGAffineTransformMakeScale(float(fontDef.stretch) / float(100), 1); - } - - QCFType<CTFontDescriptorRef> descriptor = CTFontDescriptorCreateWithNameAndSize(name, fontDef.pixelSize); - QCFType<CTFontRef> baseFont = CTFontCreateWithFontDescriptor(descriptor, fontDef.pixelSize, &transform); - ctfont = NULL; - // There is a side effect in Core Text: if we apply 0 as symbolic traits to a font in normal weight, - // we will get the light version of that font (while the way supposed to work doesn't: - // setting kCTFontWeightTrait to some value between -1.0 to 0.0 has no effect on font selection) - if (fontDef.weight != QFont::Normal || symbolicTraits) - ctfont = CTFontCreateCopyWithSymbolicTraits(baseFont, fontDef.pixelSize, &transform, symbolicTraits, symbolicTraits); - - // CTFontCreateCopyWithSymbolicTraits returns NULL if we ask for a trait that does - // not exist for the given font. (for example italic) - if (ctfont == 0) { - ctfont = baseFont; - CFRetain(ctfont); - } - init(kerning); -} - -QCoreTextFontEngineMulti::QCoreTextFontEngineMulti(CTFontRef ctFontRef, const QFontDef &fontDef, bool kerning) - : QFontEngineMulti(0) -{ - this->fontDef = fontDef; - ctfont = (CTFontRef) CFRetain(ctFontRef); - init(kerning); -} - -QCoreTextFontEngineMulti::~QCoreTextFontEngineMulti() -{ - CFRelease(ctfont); -} - -void QCoreTextFontEngineMulti::init(bool kerning) -{ - Q_ASSERT(ctfont != NULL); - attributeDict = CFDictionaryCreateMutable(0, 2, - &kCFTypeDictionaryKeyCallBacks, - &kCFTypeDictionaryValueCallBacks); - CFDictionaryAddValue(attributeDict, kCTFontAttributeName, ctfont); - if (!kerning) { - float zero = 0.0; - QCFType<CFNumberRef> noKern = CFNumberCreate(kCFAllocatorDefault, kCFNumberFloatType, &zero); - CFDictionaryAddValue(attributeDict, kCTKernAttributeName, noKern); - } - - QCoreTextFontEngine *fe = new QCoreTextFontEngine(ctfont, fontDef); - fontDef.family = fe->fontDef.family; - fontDef.styleName = fe->fontDef.styleName; - transform = fe->transform; - fe->ref.ref(); - engines.append(fe); -} - -uint QCoreTextFontEngineMulti::fontIndexForFont(CTFontRef font) const -{ - for (int i = 0; i < engines.count(); ++i) { - if (CFEqual(engineAt(i)->ctfont, font)) - return i; - } - - QCoreTextFontEngineMulti *that = const_cast<QCoreTextFontEngineMulti *>(this); - QCoreTextFontEngine *fe = new QCoreTextFontEngine(font, fontDef); - fe->ref.ref(); - that->engines.append(fe); - return engines.count() - 1; -} - -bool QCoreTextFontEngineMulti::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, - int *nglyphs, QTextEngine::ShaperFlags flags, - unsigned short *logClusters, const HB_CharAttributes *, - QScriptItem *si) const -{ - QCFType<CFStringRef> cfstring = CFStringCreateWithCharactersNoCopy(0, - reinterpret_cast<const UniChar *>(str), - len, kCFAllocatorNull); - QCFType<CFAttributedStringRef> attributedString = CFAttributedStringCreate(0, cfstring, attributeDict); - QCFType<CTTypesetterRef> typeSetter; - -#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6 - if (flags & QTextEngine::RightToLeft) { - const void *optionKeys[] = { kCTTypesetterOptionForcedEmbeddingLevel }; - const short rtlForcedEmbeddingLevelValue = 1; - const void *rtlOptionValues[] = { CFNumberCreate(kCFAllocatorDefault, kCFNumberShortType, &rtlForcedEmbeddingLevelValue) }; - QCFType<CFDictionaryRef> options = CFDictionaryCreate(kCFAllocatorDefault, optionKeys, rtlOptionValues, 1, - &kCFCopyStringDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); - typeSetter = CTTypesetterCreateWithAttributedStringAndOptions(attributedString, options); - } else -#else - Q_UNUSED(flags); -#endif - typeSetter = CTTypesetterCreateWithAttributedString(attributedString); - - CFRange range = {0, 0}; - QCFType<CTLineRef> line = CTTypesetterCreateLine(typeSetter, range); - CFArrayRef array = CTLineGetGlyphRuns(line); - uint arraySize = CFArrayGetCount(array); - glyph_t *outGlyphs = glyphs->glyphs; - HB_GlyphAttributes *outAttributes = glyphs->attributes; - QFixed *outAdvances_x = glyphs->advances_x; - QFixed *outAdvances_y = glyphs->advances_y; - glyph_t *initialGlyph = outGlyphs; - - if (arraySize == 0) { - // CoreText failed to shape the text we gave it, so we assume one glyph - // per character and build a list of invalid glyphs with zero advance - *nglyphs = len; - for (int i = 0; i < len; ++i) { - outGlyphs[i] = 0; - if (logClusters) - logClusters[i] = i; - outAdvances_x[i] = QFixed(); - outAdvances_y[i] = QFixed(); - outAttributes[i].clusterStart = true; - } - return true; - } - - const bool rtl = (CTRunGetStatus(static_cast<CTRunRef>(CFArrayGetValueAtIndex(array, 0))) & kCTRunStatusRightToLeft); - - bool outOBounds = false; - for (uint i = 0; i < arraySize; ++i) { - CTRunRef run = static_cast<CTRunRef>(CFArrayGetValueAtIndex(array, rtl ? (arraySize - 1 - i) : i)); - CFIndex glyphCount = CTRunGetGlyphCount(run); - if (glyphCount == 0) - continue; - - Q_ASSERT((CTRunGetStatus(run) & kCTRunStatusRightToLeft) == rtl); - CFRange stringRange = CTRunGetStringRange(run); - int prepend = 0; -#if MAC_OS_X_VERSION_MAX_ALLOWED == MAC_OS_X_VERSION_10_5 - UniChar beginGlyph = CFStringGetCharacterAtIndex(cfstring, stringRange.location); - QChar dir = QChar::direction(beginGlyph); - bool beginWithOverride = dir == QChar::DirLRO || dir == QChar::DirRLO || dir == QChar::DirLRE || dir == QChar::DirRLE; - if (beginWithOverride) { - logClusters[stringRange.location] = 0; - outGlyphs[0] = 0xFFFF; - outAdvances_x[0] = 0; - outAdvances_y[0] = 0; - outAttributes[0].clusterStart = true; - outAttributes[0].dontPrint = true; - outGlyphs++; - outAdvances_x++; - outAdvances_y++; - outAttributes++; - prepend = 1; - } -#endif - UniChar endGlyph = CFStringGetCharacterAtIndex(cfstring, stringRange.location + stringRange.length - 1); - bool endWithPDF = QChar::direction(endGlyph) == QChar::DirPDF; - if (endWithPDF) - glyphCount++; - - if (!outOBounds && outGlyphs + glyphCount - initialGlyph > *nglyphs) { - outOBounds = true; - } - if (!outOBounds) { - CFDictionaryRef runAttribs = CTRunGetAttributes(run); - //NSLog(@"Dictionary %@", runAttribs); - if (!runAttribs) - runAttribs = attributeDict; - CTFontRef runFont = static_cast<CTFontRef>(CFDictionaryGetValue(runAttribs, kCTFontAttributeName)); - uint fontIndex = fontIndexForFont(runFont); - const QFontEngine *engine = engineAt(fontIndex); - fontIndex <<= 24; - si->ascent = qMax(engine->ascent(), si->ascent); - si->descent = qMax(engine->descent(), si->descent); - si->leading = qMax(engine->leading(), si->leading); - //NSLog(@"Run Font Name = %@", CTFontCopyFamilyName(runFont)); - if (endWithPDF) - glyphCount--; - - QVarLengthArray<CGGlyph, 512> cgglyphs(0); - const CGGlyph *tmpGlyphs = CTRunGetGlyphsPtr(run); - if (!tmpGlyphs) { - cgglyphs.resize(glyphCount); - CTRunGetGlyphs(run, range, cgglyphs.data()); - tmpGlyphs = cgglyphs.constData(); - } - QVarLengthArray<CGPoint, 512> cgpoints(0); - const CGPoint *tmpPoints = CTRunGetPositionsPtr(run); - if (!tmpPoints) { - cgpoints.resize(glyphCount); - CTRunGetPositions(run, range, cgpoints.data()); - tmpPoints = cgpoints.constData(); - } - - const int rtlOffset = rtl ? (glyphCount - 1) : 0; - const int rtlSign = rtl ? -1 : 1; - - if (logClusters) { - CFRange stringRange = CTRunGetStringRange(run); - QVarLengthArray<CFIndex, 512> stringIndices(0); - const CFIndex *tmpIndices = CTRunGetStringIndicesPtr(run); - if (!tmpIndices) { - stringIndices.resize(glyphCount); - CTRunGetStringIndices(run, range, stringIndices.data()); - tmpIndices = stringIndices.constData(); - } - - const int firstGlyphIndex = outGlyphs - initialGlyph; - outAttributes[0].clusterStart = true; - - CFIndex k = 0; - CFIndex i = 0; - for (i = stringRange.location + prepend; - (i < stringRange.location + stringRange.length) && (k < glyphCount); ++i) { - if (tmpIndices[k * rtlSign + rtlOffset] == i || i == stringRange.location + prepend) { - logClusters[i] = k + firstGlyphIndex; - outAttributes[k].clusterStart = true; - ++k; - } else { - logClusters[i] = k + firstGlyphIndex - 1; - } - } - // in case of a ligature at the end, fill the remaining logcluster entries - for (;i < stringRange.location + stringRange.length; i++) { - logClusters[i] = k + firstGlyphIndex - 1; - } - } - for (CFIndex i = 0; i < glyphCount - 1; ++i) { - int idx = rtlOffset + rtlSign * i; - outGlyphs[idx] = tmpGlyphs[i] | fontIndex; - outAdvances_x[idx] = QFixed::fromReal(tmpPoints[i + 1].x - tmpPoints[i].x); - // Use negative y advance for flipped coordinate system - outAdvances_y[idx] = QFixed::fromReal(tmpPoints[i].y - tmpPoints[i + 1].y); - - if (fontDef.styleStrategy & QFont::ForceIntegerMetrics) { - outAdvances_x[idx] = outAdvances_x[idx].round(); - outAdvances_y[idx] = outAdvances_y[idx].round(); - } - } - CGSize lastGlyphAdvance; - CTFontGetAdvancesForGlyphs(runFont, kCTFontHorizontalOrientation, tmpGlyphs + glyphCount - 1, &lastGlyphAdvance, 1); - - outGlyphs[rtl ? 0 : (glyphCount - 1)] = tmpGlyphs[glyphCount - 1] | fontIndex; - outAdvances_x[rtl ? 0 : (glyphCount - 1)] = - (fontDef.styleStrategy & QFont::ForceIntegerMetrics) - ? QFixed::fromReal(lastGlyphAdvance.width).round() - : QFixed::fromReal(lastGlyphAdvance.width); - - if (endWithPDF) { - logClusters[stringRange.location + stringRange.length - 1] = glyphCount + prepend; - outGlyphs[glyphCount] = 0xFFFF; - outAdvances_x[glyphCount] = 0; - outAdvances_y[glyphCount] = 0; - outAttributes[glyphCount].clusterStart = true; - outAttributes[glyphCount].dontPrint = true; - glyphCount++; - } - } - outGlyphs += glyphCount; - outAttributes += glyphCount; - outAdvances_x += glyphCount; - outAdvances_y += glyphCount; - } - *nglyphs = (outGlyphs - initialGlyph); - return !outOBounds; -} - -bool QCoreTextFontEngineMulti::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, - int *nglyphs, QTextEngine::ShaperFlags flags) const -{ - *nglyphs = len; - QCFType<CFStringRef> cfstring; - - QVarLengthArray<CGGlyph> cgGlyphs(len); - CTFontGetGlyphsForCharacters(ctfont, (const UniChar*)str, cgGlyphs.data(), len); - - for (int i = 0; i < len; ++i) { - if (cgGlyphs[i]) { - glyphs->glyphs[i] = cgGlyphs[i]; - } else { - if (!cfstring) - cfstring = CFStringCreateWithCharactersNoCopy(0, reinterpret_cast<const UniChar *>(str), len, kCFAllocatorNull); - QCFType<CTFontRef> substituteFont = CTFontCreateForString(ctfont, cfstring, CFRangeMake(i, 1)); - CGGlyph substituteGlyph = 0; - CTFontGetGlyphsForCharacters(substituteFont, (const UniChar*)str + i, &substituteGlyph, 1); - if (substituteGlyph) { - const uint fontIndex = (fontIndexForFont(substituteFont) << 24); - glyphs->glyphs[i] = substituteGlyph | fontIndex; - if (!(flags & QTextEngine::GlyphIndicesOnly)) { - CGSize advance; - CTFontGetAdvancesForGlyphs(substituteFont, kCTFontHorizontalOrientation, &substituteGlyph, &advance, 1); - glyphs->advances_x[i] = QFixed::fromReal(advance.width); - glyphs->advances_y[i] = QFixed::fromReal(advance.height); - } - } - } - } - - if (flags & QTextEngine::GlyphIndicesOnly) - return true; - - loadAdvancesForGlyphs(ctfont, cgGlyphs, glyphs, len, flags, fontDef); - return true; -} - -void QCoreTextFontEngineMulti::loadEngine(int) -{ - // Do nothing - Q_ASSERT(false); -} - extern int qt_antialiasing_threshold, qt_enable_font_smoothing; CGAffineTransform qt_transform_from_fontdef(const QFontDef &fontDef) diff --git a/src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h b/src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h index e89d42f0d0..502cf3819c 100644 --- a/src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h +++ b/src/platformsupport/fontdatabases/mac/qfontengine_coretext_p.h @@ -53,7 +53,6 @@ QT_BEGIN_HEADER QT_BEGIN_NAMESPACE class QRawFontPrivate; -class QCoreTextFontEngineMulti; class QCoreTextFontEngine : public QFontEngine { public: @@ -109,39 +108,6 @@ private: int synthesisFlags; CGAffineTransform transform; QFixed avgCharWidth; - friend class QCoreTextFontEngineMulti; -}; - -class QCoreTextFontEngineMulti : public QFontEngineMulti -{ -public: - QCoreTextFontEngineMulti(const QCFString &name, const QFontDef &fontDef, bool kerning); - QCoreTextFontEngineMulti(CTFontRef ctFontRef, const QFontDef &fontDef, bool kerning); - ~QCoreTextFontEngineMulti(); - - virtual bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, - QTextEngine::ShaperFlags flags) const; - bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, - QTextEngine::ShaperFlags flags, - unsigned short *logClusters, const HB_CharAttributes *charAttributes, - QScriptItem *si) const; - - virtual const char *name() const { return "CoreText"; } - inline CTFontRef macFontID() const { return ctfont; } - -protected: - virtual void loadEngine(int at); - -private: - void init(bool kerning); - inline const QCoreTextFontEngine *engineAt(int i) const - { return static_cast<const QCoreTextFontEngine *>(engines.at(i)); } - - uint fontIndexForFont(CTFontRef font) const; - CTFontRef ctfont; - mutable QCFType<CFMutableDictionaryRef> attributeDict; - CGAffineTransform transform; - friend class QFontDialogPrivate; }; CGAffineTransform qt_transform_from_fontdef(const QFontDef &fontDef); |