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Diffstat (limited to 'src/gui/platforms/mac/qfontengine_mac.mm')
| -rw-r--r-- | src/gui/platforms/mac/qfontengine_mac.mm | 1236 |
1 files changed, 0 insertions, 1236 deletions
diff --git a/src/gui/platforms/mac/qfontengine_mac.mm b/src/gui/platforms/mac/qfontengine_mac.mm deleted file mode 100644 index 9f094ad7d1..0000000000 --- a/src/gui/platforms/mac/qfontengine_mac.mm +++ /dev/null @@ -1,1236 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 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. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 "qfontengine_mac_p.h" - -#include <private/qapplication_p.h> -#include <private/qfontengine_p.h> -#include <private/qpainter_p.h> -#include <private/qtextengine_p.h> -#include <qbitmap.h> -#include <private/qpaintengine_mac_p.h> -#include <private/qprintengine_mac_p.h> -#include <qglobal.h> -#include <qpixmap.h> -#include <qpixmapcache.h> -#include <qvarlengtharray.h> -#include <qdebug.h> -#include <qendian.h> -#include <qmath.h> -#include <private/qimage_p.h> - -#include <ApplicationServices/ApplicationServices.h> -#include <AppKit/AppKit.h> - -QT_BEGIN_NAMESPACE - -/***************************************************************************** - QFontEngine debug facilities - *****************************************************************************/ -//#define DEBUG_ADVANCES - -extern int qt_antialiasing_threshold; // QApplication.cpp - -#ifndef FixedToQFixed -#define FixedToQFixed(a) QFixed::fromFixed((a) >> 10) -#define QFixedToFixed(x) ((x).value() << 10) -#endif - -class QMacFontPath -{ - float x, y; - QPainterPath *path; -public: - inline QMacFontPath(float _x, float _y, QPainterPath *_path) : x(_x), y(_y), path(_path) { } - inline void setPosition(float _x, float _y) { x = _x; y = _y; } - inline void advance(float _x) { x += _x; } - static OSStatus lineTo(const Float32Point *, void *); - static OSStatus cubicTo(const Float32Point *, const Float32Point *, - const Float32Point *, void *); - static OSStatus moveTo(const Float32Point *, void *); - static OSStatus closePath(void *); -}; - -OSStatus QMacFontPath::lineTo(const Float32Point *pt, void *data) - -{ - QMacFontPath *p = static_cast<QMacFontPath*>(data); - p->path->lineTo(p->x + pt->x, p->y + pt->y); - return noErr; -} - -OSStatus QMacFontPath::cubicTo(const Float32Point *cp1, const Float32Point *cp2, - const Float32Point *ep, void *data) - -{ - QMacFontPath *p = static_cast<QMacFontPath*>(data); - p->path->cubicTo(p->x + cp1->x, p->y + cp1->y, - p->x + cp2->x, p->y + cp2->y, - p->x + ep->x, p->y + ep->y); - return noErr; -} - -OSStatus QMacFontPath::moveTo(const Float32Point *pt, void *data) -{ - QMacFontPath *p = static_cast<QMacFontPath*>(data); - p->path->moveTo(p->x + pt->x, p->y + pt->y); - return noErr; -} - -OSStatus QMacFontPath::closePath(void *data) -{ - static_cast<QMacFontPath*>(data)->path->closeSubpath(); - return noErr; -} - - -#ifndef QT_MAC_USE_COCOA -QFontEngineMacMulti::QFontEngineMacMulti(const ATSFontFamilyRef &atsFamily, const ATSFontRef &atsFontRef, const QFontDef &fontDef, bool kerning) - : QFontEngineMulti(0) -{ - this->fontDef = fontDef; - this->kerning = kerning; - - // hopefully (CTFontCreateWithName or CTFontCreateWithFontDescriptor) + CTFontCreateCopyWithSymbolicTraits - // (or CTFontCreateWithQuickdrawInstance) - FMFontFamily fmFamily; - FMFontStyle fntStyle = 0; - fmFamily = FMGetFontFamilyFromATSFontFamilyRef(atsFamily); - if (fmFamily == kInvalidFontFamily) { - // Use the ATSFont then... - fontID = FMGetFontFromATSFontRef(atsFontRef); - } else { - if (fontDef.weight >= QFont::Bold) - fntStyle |= ::bold; - if (fontDef.style != QFont::StyleNormal) - fntStyle |= ::italic; - - FMFontStyle intrinsicStyle; - FMFont fnt = 0; - if (FMGetFontFromFontFamilyInstance(fmFamily, fntStyle, &fnt, &intrinsicStyle) == noErr) - fontID = FMGetATSFontRefFromFont(fnt); - } - - // CFDictionaryRef, <CTStringAttributes.h> - OSStatus status; - - status = ATSUCreateTextLayout(&textLayout); - Q_ASSERT(status == noErr); - - const int maxAttributeCount = 5; - ATSUAttributeTag tags[maxAttributeCount + 1]; - ByteCount sizes[maxAttributeCount + 1]; - ATSUAttributeValuePtr values[maxAttributeCount + 1]; - int attributeCount = 0; - - Fixed size = FixRatio(fontDef.pixelSize, 1); - tags[attributeCount] = kATSUSizeTag; - sizes[attributeCount] = sizeof(size); - values[attributeCount] = &size; - ++attributeCount; - - tags[attributeCount] = kATSUFontTag; - sizes[attributeCount] = sizeof(fontID); - values[attributeCount] = &this->fontID; - ++attributeCount; - - transform = CGAffineTransformIdentity; - if (fontDef.stretch != 100) { - transform = CGAffineTransformMakeScale(float(fontDef.stretch) / float(100), 1); - tags[attributeCount] = kATSUFontMatrixTag; - sizes[attributeCount] = sizeof(transform); - values[attributeCount] = &transform; - ++attributeCount; - } - - status = ATSUCreateStyle(&style); - Q_ASSERT(status == noErr); - - Q_ASSERT(attributeCount < maxAttributeCount + 1); - status = ATSUSetAttributes(style, attributeCount, tags, sizes, values); - Q_ASSERT(status == noErr); - - QFontEngineMac *fe = new QFontEngineMac(style, fontID, fontDef, this); - fe->ref.ref(); - engines.append(fe); -} - -QFontEngineMacMulti::~QFontEngineMacMulti() -{ - ATSUDisposeTextLayout(textLayout); - ATSUDisposeStyle(style); - - for (int i = 0; i < engines.count(); ++i) { - QFontEngineMac *fe = const_cast<QFontEngineMac *>(static_cast<const QFontEngineMac *>(engines.at(i))); - fe->multiEngine = 0; - if (!fe->ref.deref()) - delete fe; - } - engines.clear(); -} - -struct QGlyphLayoutInfo -{ - QGlyphLayout *glyphs; - int *numGlyphs; - bool callbackCalled; - int *mappedFonts; - QTextEngine::ShaperFlags flags; - QFontEngineMacMulti::ShaperItem *shaperItem; - unsigned int styleStrategy; -}; - -static OSStatus atsuPostLayoutCallback(ATSULayoutOperationSelector selector, ATSULineRef lineRef, URefCon refCon, - void *operationExtraParameter, ATSULayoutOperationCallbackStatus *callbackStatus) -{ - Q_UNUSED(selector); - Q_UNUSED(operationExtraParameter); - - QGlyphLayoutInfo *nfo = reinterpret_cast<QGlyphLayoutInfo *>(refCon); - nfo->callbackCalled = true; - - ATSLayoutRecord *layoutData = 0; - ItemCount itemCount = 0; - - OSStatus e = noErr; - e = ATSUDirectGetLayoutDataArrayPtrFromLineRef(lineRef, kATSUDirectDataLayoutRecordATSLayoutRecordCurrent, - /*iCreate =*/ false, - (void **) &layoutData, - &itemCount); - if (e != noErr) - return e; - - *nfo->numGlyphs = itemCount - 1; - - Fixed *baselineDeltas = 0; - - e = ATSUDirectGetLayoutDataArrayPtrFromLineRef(lineRef, kATSUDirectDataBaselineDeltaFixedArray, - /*iCreate =*/ true, - (void **) &baselineDeltas, - &itemCount); - if (e != noErr) - return e; - - int nextCharStop = -1; - int currentClusterGlyph = -1; // first glyph in log cluster - QFontEngineMacMulti::ShaperItem *item = nfo->shaperItem; - if (item->charAttributes) { - item = nfo->shaperItem; -#if !defined(QT_NO_DEBUG) - int surrogates = 0; - const QChar *str = item->string; - for (int i = item->from; i < item->from + item->length - 1; ++i) { - surrogates += (str[i].unicode() >= 0xd800 && str[i].unicode() < 0xdc00 - && str[i+1].unicode() >= 0xdc00 && str[i+1].unicode() < 0xe000); - } -#endif - for (nextCharStop = item->from; nextCharStop < item->from + item->length; ++nextCharStop) - if (item->charAttributes[nextCharStop].charStop) - break; - nextCharStop -= item->from; - } - - nfo->glyphs->attributes[0].clusterStart = true; - int glyphIdx = 0; - int glyphIncrement = 1; - if (nfo->flags & QTextEngine::RightToLeft) { - glyphIdx = itemCount - 2; - glyphIncrement = -1; - } - for (int i = 0; i < *nfo->numGlyphs; ++i, glyphIdx += glyphIncrement) { - - int charOffset = layoutData[glyphIdx].originalOffset / sizeof(UniChar); - const int fontIdx = nfo->mappedFonts[charOffset]; - - ATSGlyphRef glyphId = layoutData[glyphIdx].glyphID; - - QFixed yAdvance = FixedToQFixed(baselineDeltas[glyphIdx]); - QFixed xAdvance = FixedToQFixed(layoutData[glyphIdx + 1].realPos - layoutData[glyphIdx].realPos); - - if (nfo->styleStrategy & QFont::ForceIntegerMetrics) { - yAdvance = yAdvance.round(); - xAdvance = xAdvance.round(); - } - - if (glyphId != 0xffff || i == 0) { - if (i < nfo->glyphs->numGlyphs) - { - nfo->glyphs->glyphs[i] = (glyphId & 0x00ffffff) | (fontIdx << 24); - - nfo->glyphs->advances_y[i] = yAdvance; - nfo->glyphs->advances_x[i] = xAdvance; - } - } else { - // ATSUI gives us 0xffff as glyph id at the index in the glyph array for - // a character position that maps to a ligtature. Such a glyph id does not - // result in any visual glyph, but it may have an advance, which is why we - // sum up the glyph advances. - --i; - nfo->glyphs->advances_y[i] += yAdvance; - nfo->glyphs->advances_x[i] += xAdvance; - *nfo->numGlyphs -= 1; - } - - if (item->log_clusters) { - if (charOffset >= nextCharStop) { - nfo->glyphs->attributes[i].clusterStart = true; - currentClusterGlyph = i; - - ++nextCharStop; - for (; nextCharStop < item->length; ++nextCharStop) - if (item->charAttributes[item->from + nextCharStop].charStop) - break; - } else { - if (currentClusterGlyph == -1) - currentClusterGlyph = i; - } - item->log_clusters[charOffset] = currentClusterGlyph; - - // surrogate handling - if (charOffset < item->length - 1) { - QChar current = item->string[item->from + charOffset]; - QChar next = item->string[item->from + charOffset + 1]; - if (current.unicode() >= 0xd800 && current.unicode() < 0xdc00 - && next.unicode() >= 0xdc00 && next.unicode() < 0xe000) { - item->log_clusters[charOffset + 1] = currentClusterGlyph; - } - } - } - } - - /* - if (item) { - qDebug() << "resulting logclusters:"; - for (int i = 0; i < item->length; ++i) - qDebug() << "logClusters[" << i << "] =" << item->log_clusters[i]; - qDebug() << "clusterstarts:"; - for (int i = 0; i < *nfo->numGlyphs; ++i) - qDebug() << "clusterStart[" << i << "] =" << nfo->glyphs[i].attributes.clusterStart; - } - */ - - ATSUDirectReleaseLayoutDataArrayPtr(lineRef, kATSUDirectDataBaselineDeltaFixedArray, - (void **) &baselineDeltas); - - ATSUDirectReleaseLayoutDataArrayPtr(lineRef, kATSUDirectDataLayoutRecordATSLayoutRecordCurrent, - (void **) &layoutData); - - *callbackStatus = kATSULayoutOperationCallbackStatusHandled; - return noErr; -} - -int QFontEngineMacMulti::fontIndexForFontID(ATSUFontID id) const -{ - for (int i = 0; i < engines.count(); ++i) { - if (engineAt(i)->fontID == id) - return i; - } - - QFontEngineMacMulti *that = const_cast<QFontEngineMacMulti *>(this); - QFontEngineMac *fe = new QFontEngineMac(style, id, fontDef, that); - fe->ref.ref(); - that->engines.append(fe); - return engines.count() - 1; -} - -bool QFontEngineMacMulti::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const -{ - return stringToCMap(str, len, glyphs, nglyphs, flags, /*logClusters=*/0, /*charAttributes=*/0); -} - -bool QFontEngineMacMulti::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags, - unsigned short *logClusters, const HB_CharAttributes *charAttributes, QScriptItem *) const -{ - if (*nglyphs < len) { - *nglyphs = len; - return false; - } - - ShaperItem shaperItem; - shaperItem.string = str; - shaperItem.from = 0; - shaperItem.length = len; - shaperItem.glyphs = *glyphs; - shaperItem.glyphs.numGlyphs = *nglyphs; - shaperItem.flags = flags; - shaperItem.log_clusters = logClusters; - shaperItem.charAttributes = charAttributes; - - const int maxChars = qMax(1, - int(SHRT_MAX / maxCharWidth()) - - 10 // subtract a few to be on the safe side - ); - if (len < maxChars || !charAttributes) - return stringToCMapInternal(str, len, glyphs, nglyphs, flags, &shaperItem); - - int charIdx = 0; - int glyphIdx = 0; - ShaperItem tmpItem = shaperItem; - - do { - tmpItem.from = shaperItem.from + charIdx; - - int charCount = qMin(maxChars, len - charIdx); - - int lastWhitespace = tmpItem.from + charCount - 1; - int lastSoftBreak = lastWhitespace; - int lastCharStop = lastSoftBreak; - for (int i = lastCharStop; i >= tmpItem.from; --i) { - if (tmpItem.charAttributes[i].whiteSpace) { - lastWhitespace = i; - break; - } if (tmpItem.charAttributes[i].lineBreakType != HB_NoBreak) { - lastSoftBreak = i; - } if (tmpItem.charAttributes[i].charStop) { - lastCharStop = i; - } - } - charCount = qMin(lastWhitespace, qMin(lastSoftBreak, lastCharStop)) - tmpItem.from + 1; - - int glyphCount = shaperItem.glyphs.numGlyphs - glyphIdx; - if (glyphCount <= 0) - return false; - 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, - &tmpItem.glyphs, &glyphCount, flags, - &tmpItem)) { - *nglyphs = glyphIdx + glyphCount; - return false; - } - for (int i = 0; i < charCount; ++i) - tmpItem.log_clusters[i] += glyphIdx; - glyphIdx += glyphCount; - charIdx += charCount; - } while (charIdx < len); - *nglyphs = glyphIdx; - glyphs->numGlyphs = glyphIdx; - - return true; -} - -bool QFontEngineMacMulti::stringToCMapInternal(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags,ShaperItem *shaperItem) const -{ - //qDebug() << "stringToCMap" << QString(str, len); - - OSStatus e = noErr; - - e = ATSUSetTextPointerLocation(textLayout, (UniChar *)(str), 0, len, len); - if (e != noErr) { - qWarning("Qt: internal: %ld: Error ATSUSetTextPointerLocation %s: %d", long(e), __FILE__, __LINE__); - return false; - } - - QGlyphLayoutInfo nfo; - nfo.glyphs = glyphs; - nfo.numGlyphs = nglyphs; - nfo.callbackCalled = false; - nfo.flags = flags; - nfo.shaperItem = shaperItem; - nfo.styleStrategy = fontDef.styleStrategy; - - int prevNumGlyphs = *nglyphs; - - QVarLengthArray<int> mappedFonts(len); - for (int i = 0; i < len; ++i) - mappedFonts[i] = 0; - nfo.mappedFonts = mappedFonts.data(); - - Q_ASSERT(sizeof(void *) <= sizeof(URefCon)); - e = ATSUSetTextLayoutRefCon(textLayout, (URefCon)&nfo); - if (e != noErr) { - qWarning("Qt: internal: %ld: Error ATSUSetTextLayoutRefCon %s: %d", long(e), __FILE__, __LINE__); - return false; - } - - { - const int maxAttributeCount = 3; - ATSUAttributeTag tags[maxAttributeCount + 1]; - ByteCount sizes[maxAttributeCount + 1]; - ATSUAttributeValuePtr values[maxAttributeCount + 1]; - int attributeCount = 0; - - tags[attributeCount] = kATSULineLayoutOptionsTag; - ATSLineLayoutOptions layopts = kATSLineHasNoOpticalAlignment - | kATSLineIgnoreFontLeading - | kATSLineNoSpecialJustification // we do kashidas ourselves - | kATSLineDisableAllJustification - ; - - if (fontDef.styleStrategy & QFont::NoAntialias) - layopts |= kATSLineNoAntiAliasing; - - if (!kerning) - layopts |= kATSLineDisableAllKerningAdjustments; - - values[attributeCount] = &layopts; - sizes[attributeCount] = sizeof(layopts); - ++attributeCount; - - tags[attributeCount] = kATSULayoutOperationOverrideTag; - ATSULayoutOperationOverrideSpecifier spec; - spec.operationSelector = kATSULayoutOperationPostLayoutAdjustment; - spec.overrideUPP = atsuPostLayoutCallback; - values[attributeCount] = &spec; - sizes[attributeCount] = sizeof(spec); - ++attributeCount; - - // CTWritingDirection - Boolean direction; - if (flags & QTextEngine::RightToLeft) - direction = kATSURightToLeftBaseDirection; - else - direction = kATSULeftToRightBaseDirection; - tags[attributeCount] = kATSULineDirectionTag; - values[attributeCount] = &direction; - sizes[attributeCount] = sizeof(direction); - ++attributeCount; - - Q_ASSERT(attributeCount < maxAttributeCount + 1); - e = ATSUSetLayoutControls(textLayout, attributeCount, tags, sizes, values); - if (e != noErr) { - qWarning("Qt: internal: %ld: Error ATSUSetLayoutControls %s: %d", long(e), __FILE__, __LINE__); - return false; - } - - } - - e = ATSUSetRunStyle(textLayout, style, 0, len); - if (e != noErr) { - qWarning("Qt: internal: %ld: Error ATSUSetRunStyle %s: %d", long(e), __FILE__, __LINE__); - return false; - } - - if (!(fontDef.styleStrategy & QFont::NoFontMerging)) { - int pos = 0; - do { - ATSUFontID substFont = 0; - UniCharArrayOffset changedOffset = 0; - UniCharCount changeCount = 0; - - e = ATSUMatchFontsToText(textLayout, pos, len - pos, - &substFont, &changedOffset, - &changeCount); - if (e == kATSUFontsMatched) { - int fontIdx = fontIndexForFontID(substFont); - for (uint i = 0; i < changeCount; ++i) - mappedFonts[changedOffset + i] = fontIdx; - pos = changedOffset + changeCount; - ATSUSetRunStyle(textLayout, engineAt(fontIdx)->style, changedOffset, changeCount); - } else if (e == kATSUFontsNotMatched) { - pos = changedOffset + changeCount; - } - } while (pos < len && e != noErr); - } - { // trigger the a layout - // CFAttributedStringCreate, CTFramesetterCreateWithAttributedString (or perhaps Typesetter) - Rect rect; - e = ATSUMeasureTextImage(textLayout, kATSUFromTextBeginning, kATSUToTextEnd, - /*iLocationX =*/ 0, /*iLocationY =*/ 0, - &rect); - if (e != noErr) { - qWarning("Qt: internal: %ld: Error ATSUMeasureTextImage %s: %d", long(e), __FILE__, __LINE__); - return false; - } - } - - if (!nfo.callbackCalled) { - qWarning("Qt: internal: %ld: Error ATSUMeasureTextImage did not trigger callback %s: %d", long(e), __FILE__, __LINE__); - return false; - } - - ATSUClearLayoutCache(textLayout, kATSUFromTextBeginning); - if (prevNumGlyphs < *nfo.numGlyphs) - return false; - return true; -} - -void QFontEngineMacMulti::recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags flags) const -{ - Q_ASSERT(false); - Q_UNUSED(glyphs); - Q_UNUSED(flags); -} - -void QFontEngineMacMulti::doKerning(QGlyphLayout *, QTextEngine::ShaperFlags) const -{ - //Q_ASSERT(false); -} - -void QFontEngineMacMulti::loadEngine(int /*at*/) -{ - // should never be called! - Q_ASSERT(false); -} - -bool QFontEngineMacMulti::canRender(const QChar *string, int len) -{ - ATSUSetTextPointerLocation(textLayout, reinterpret_cast<const UniChar *>(string), 0, len, len); - ATSUSetRunStyle(textLayout, style, 0, len); - - OSStatus e = noErr; - int pos = 0; - do { - FMFont substFont = 0; - UniCharArrayOffset changedOffset = 0; - UniCharCount changeCount = 0; - - // CTFontCreateForString - e = ATSUMatchFontsToText(textLayout, pos, len - pos, - &substFont, &changedOffset, - &changeCount); - if (e == kATSUFontsMatched) { - pos = changedOffset + changeCount; - } else if (e == kATSUFontsNotMatched) { - break; - } - } while (pos < len && e != noErr); - - return e == noErr || e == kATSUFontsMatched; -} - -QFontEngineMac::QFontEngineMac(ATSUStyle baseStyle, ATSUFontID fontID, const QFontDef &def, QFontEngineMacMulti *multiEngine) - : fontID(fontID), multiEngine(multiEngine), cmap(0), symbolCMap(false) -{ - fontDef = def; - ATSUCreateAndCopyStyle(baseStyle, &style); - ATSFontRef atsFont = FMGetATSFontRefFromFont(fontID); - cgFont = CGFontCreateWithPlatformFont(&atsFont); - - const int maxAttributeCount = 4; - ATSUAttributeTag tags[maxAttributeCount + 1]; - ByteCount sizes[maxAttributeCount + 1]; - ATSUAttributeValuePtr values[maxAttributeCount + 1]; - int attributeCount = 0; - - synthesisFlags = 0; - - // synthesizing using CG is not recommended - quint16 macStyle = 0; - { - uchar data[4]; - ByteCount len = 4; - if (ATSFontGetTable(atsFont, MAKE_TAG('h', 'e', 'a', 'd'), 44, 4, &data, &len) == noErr) - macStyle = qFromBigEndian<quint16>(data); - } - - Boolean atsuBold = false; - Boolean atsuItalic = false; - if (fontDef.weight >= QFont::Bold) { - if (!(macStyle & 1)) { - synthesisFlags |= SynthesizedBold; - atsuBold = true; - tags[attributeCount] = kATSUQDBoldfaceTag; - sizes[attributeCount] = sizeof(atsuBold); - values[attributeCount] = &atsuBold; - ++attributeCount; - } - } - if (fontDef.style != QFont::StyleNormal) { - if (!(macStyle & 2)) { - synthesisFlags |= SynthesizedItalic; - atsuItalic = true; - tags[attributeCount] = kATSUQDItalicTag; - sizes[attributeCount] = sizeof(atsuItalic); - values[attributeCount] = &atsuItalic; - ++attributeCount; - } - } - - tags[attributeCount] = kATSUFontTag; - values[attributeCount] = &fontID; - sizes[attributeCount] = sizeof(fontID); - ++attributeCount; - - Q_ASSERT(attributeCount < maxAttributeCount + 1); - OSStatus err = ATSUSetAttributes(style, attributeCount, tags, sizes, values); - Q_ASSERT(err == noErr); - Q_UNUSED(err); - - // CTFontCopyTable - quint16 tmpFsType; - if (ATSFontGetTable(atsFont, MAKE_TAG('O', 'S', '/', '2'), 8, 2, &tmpFsType, 0) == noErr) - fsType = qFromBigEndian<quint16>(tmpFsType); - else - fsType = 0; - - if (multiEngine) - 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); - - ATSUGetAttribute(style, kATSULeadingTag, sizeof(metric), &metric, 0); - m_leading = FixRound(metric); - - ATSFontMetrics metrics; - - ATSFontGetHorizontalMetrics(FMGetATSFontRefFromFont(fontID), kATSOptionFlagsDefault, &metrics); - m_maxCharWidth = metrics.maxAdvanceWidth * fontDef.pointSize; - - ATSFontGetHorizontalMetrics(FMGetATSFontRefFromFont(fontID), kATSOptionFlagsDefault, &metrics); - m_xHeight = QFixed::fromReal(metrics.xHeight * fontDef.pointSize); - - ATSFontGetHorizontalMetrics(FMGetATSFontRefFromFont(fontID), kATSOptionFlagsDefault, &metrics); - m_averageCharWidth = QFixed::fromReal(metrics.avgAdvanceWidth * fontDef.pointSize); - - // Use width of 'X' if ATSFontGetHorizontalMetrics returns 0 for avgAdvanceWidth. - if (m_averageCharWidth == QFixed(0)) { - QChar c('X'); - QGlyphLayoutArray<1> glyphs; - int nglyphs = 1; - stringToCMap(&c, 1, &glyphs, &nglyphs, 0); - glyph_metrics_t metrics = boundingBox(glyphs); - m_averageCharWidth = metrics.width; - } -} - -QFontEngineMac::~QFontEngineMac() -{ - ATSUDisposeStyle(style); -} - -static inline unsigned int getChar(const QChar *str, int &i, const int len) -{ - unsigned int uc = str[i].unicode(); - if (uc >= 0xd800 && uc < 0xdc00 && i < len-1) { - uint low = str[i+1].unicode(); - if (low >= 0xdc00 && low < 0xe000) { - uc = (uc - 0xd800)*0x400 + (low - 0xdc00) + 0x10000; - ++i; - } - } - return uc; -} - -// Not used directly for shaping, only used to calculate m_averageCharWidth -bool QFontEngineMac::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QTextEngine::ShaperFlags flags) const -{ - if (!cmap) { - cmapTable = getSfntTable(MAKE_TAG('c', 'm', 'a', 'p')); - int size = 0; - cmap = getCMap(reinterpret_cast<const uchar *>(cmapTable.constData()), cmapTable.size(), &symbolCMap, &size); - if (!cmap) - return false; - } - if (symbolCMap) { - for (int i = 0; i < len; ++i) { - unsigned int uc = getChar(str, i, len); - glyphs->glyphs[i] = getTrueTypeGlyphIndex(cmap, uc); - if(!glyphs->glyphs[i] && uc < 0x100) - glyphs->glyphs[i] = getTrueTypeGlyphIndex(cmap, uc + 0xf000); - } - } else { - for (int i = 0; i < len; ++i) { - unsigned int uc = getChar(str, i, len); - glyphs->glyphs[i] = getTrueTypeGlyphIndex(cmap, uc); - } - } - - *nglyphs = len; - glyphs->numGlyphs = *nglyphs; - - if (!(flags & QTextEngine::GlyphIndicesOnly)) - recalcAdvances(glyphs, flags); - - return true; -} - -void QFontEngineMac::recalcAdvances(QGlyphLayout *glyphs, QTextEngine::ShaperFlags flags) const -{ - Q_UNUSED(flags) - - QVarLengthArray<GlyphID> atsuGlyphs(glyphs->numGlyphs); - for (int i = 0; i < glyphs->numGlyphs; ++i) - atsuGlyphs[i] = glyphs->glyphs[i]; - - QVarLengthArray<ATSGlyphScreenMetrics> metrics(glyphs->numGlyphs); - - ATSUGlyphGetScreenMetrics(style, glyphs->numGlyphs, atsuGlyphs.data(), sizeof(GlyphID), - /* iForcingAntiAlias =*/ false, - /* iAntiAliasSwitch =*/true, - metrics.data()); - - for (int i = 0; i < glyphs->numGlyphs; ++i) { - glyphs->advances_x[i] = QFixed::fromReal(metrics[i].deviceAdvance.x); - glyphs->advances_y[i] = QFixed::fromReal(metrics[i].deviceAdvance.y); - - if (fontDef.styleStrategy & QFont::ForceIntegerMetrics) { - glyphs->advances_x[i] = glyphs->advances_x[i].round(); - glyphs->advances_y[i] = glyphs->advances_y[i].round(); - } - } -} - -glyph_metrics_t QFontEngineMac::boundingBox(const QGlyphLayout &glyphs) -{ - QFixed w; - bool round = fontDef.styleStrategy & QFont::ForceIntegerMetrics; - for (int i = 0; i < glyphs.numGlyphs; ++i) { - w += round ? glyphs.effectiveAdvance(i).round() - : glyphs.effectiveAdvance(i); - } - return glyph_metrics_t(0, -(ascent()), w - lastRightBearing(glyphs, round), ascent()+descent(), w, 0); -} - -glyph_metrics_t QFontEngineMac::boundingBox(glyph_t glyph) -{ - GlyphID atsuGlyph = glyph; - - ATSGlyphScreenMetrics metrics; - - ATSUGlyphGetScreenMetrics(style, 1, &atsuGlyph, 0, - /* iForcingAntiAlias =*/ false, - /* iAntiAliasSwitch =*/true, - &metrics); - - // ### check again - - glyph_metrics_t gm; - gm.width = int(metrics.width); - gm.height = int(metrics.height); - gm.x = QFixed::fromReal(metrics.topLeft.x); - gm.y = -QFixed::fromReal(metrics.topLeft.y); - gm.xoff = QFixed::fromReal(metrics.deviceAdvance.x); - gm.yoff = QFixed::fromReal(metrics.deviceAdvance.y); - - if (fontDef.styleStrategy & QFont::ForceIntegerMetrics) { - gm.x = gm.x.floor(); - gm.y = gm.y.floor(); - gm.xoff = gm.xoff.round(); - gm.yoff = gm.yoff.round(); - } - - return gm; -} - -QFixed QFontEngineMac::ascent() const -{ - return (fontDef.styleStrategy & QFont::ForceIntegerMetrics) - ? m_ascent.round() - : m_ascent; -} - -QFixed QFontEngineMac::descent() const -{ - // subtract a pixel to even out the historical +1 in QFontMetrics::height(). - // Fix in Qt 5. - return (fontDef.styleStrategy & QFont::ForceIntegerMetrics) - ? m_descent.round() - 1 - : m_descent; -} - -QFixed QFontEngineMac::leading() const -{ - return (fontDef.styleStrategy & QFont::ForceIntegerMetrics) - ? m_leading.round() - : m_leading; -} - -qreal QFontEngineMac::maxCharWidth() const -{ - return (fontDef.styleStrategy & QFont::ForceIntegerMetrics) - ? qRound(m_maxCharWidth) - : m_maxCharWidth; -} - -QFixed QFontEngineMac::xHeight() const -{ - return (fontDef.styleStrategy & QFont::ForceIntegerMetrics) - ? m_xHeight.round() - : m_xHeight; -} - -QFixed QFontEngineMac::averageCharWidth() const -{ - return (fontDef.styleStrategy & QFont::ForceIntegerMetrics) - ? m_averageCharWidth.round() - : m_averageCharWidth; -} - -static void addGlyphsToPathHelper(ATSUStyle style, glyph_t *glyphs, QFixedPoint *positions, int numGlyphs, QPainterPath *path) -{ - if (!numGlyphs) - return; - - OSStatus e; - - QMacFontPath fontpath(0, 0, path); - ATSCubicMoveToUPP moveTo = NewATSCubicMoveToUPP(QMacFontPath::moveTo); - ATSCubicLineToUPP lineTo = NewATSCubicLineToUPP(QMacFontPath::lineTo); - ATSCubicCurveToUPP cubicTo = NewATSCubicCurveToUPP(QMacFontPath::cubicTo); - ATSCubicClosePathUPP closePath = NewATSCubicClosePathUPP(QMacFontPath::closePath); - - // CTFontCreatePathForGlyph - for (int i = 0; i < numGlyphs; ++i) { - GlyphID glyph = glyphs[i]; - - fontpath.setPosition(positions[i].x.toReal(), positions[i].y.toReal()); - ATSUGlyphGetCubicPaths(style, glyph, moveTo, lineTo, - cubicTo, closePath, &fontpath, &e); - } - - DisposeATSCubicMoveToUPP(moveTo); - DisposeATSCubicLineToUPP(lineTo); - DisposeATSCubicCurveToUPP(cubicTo); - DisposeATSCubicClosePathUPP(closePath); -} - -void QFontEngineMac::addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int numGlyphs, QPainterPath *path, - QTextItem::RenderFlags) -{ - addGlyphsToPathHelper(style, glyphs, positions, numGlyphs, path); -} - - -/*! - 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(0xff000000); - - CGColorSpaceRef colorspace = QCoreGraphicsPaintEngine::macGenericColorSpace(); - uint cgflags = kCGImageAlphaNoneSkipFirst; -#ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version - cgflags |= kCGBitmapByteOrder32Host; -#endif - CGContextRef ctx = CGBitmapContextCreate(im.bits(), im.width(), im.height(), - 8, im.bytesPerLine(), colorspace, - cgflags); - 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, colorful); - CGAffineTransform oldTextMatrix = CGContextGetTextMatrix(ctx); - CGAffineTransform cgMatrix = CGAffineTransformMake(1, 0, 0, 1, 0, 0); - 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); - CGContextSetRGBFillColor(ctx, 1, 1, 1, 1); - CGContextSetTextDrawingMode(ctx, kCGTextFill); - CGContextSetFont(ctx, cgFont); - - qreal pos_x = -br.x.toReal() + 1; - qreal pos_y = im.height() + br.y.toReal() - 2; - CGContextSetTextPosition(ctx, pos_x, pos_y); - - CGSize advance; - advance.width = 0; - advance.height = 0; - CGGlyph cgGlyph = glyph; - CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1); - - if (synthesisFlags & QFontEngine::SynthesizedBold) { - CGContextSetTextPosition(ctx, pos_x + 0.5 * lineThickness().toReal(), pos_y); - CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1); - } - - 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) - colors[i] = qRgba(0, 0, 0, i); - indexed.setColorTable(colors); - - for (int y=0; y<im.height(); ++y) { - uint *src = (uint*) im.scanLine(y); - uchar *dst = indexed.scanLine(y); - for (int x=0; x<im.width(); ++x) { - *dst = qGray(*src); - ++dst; - ++src; - } - } - - return indexed; -} - -QImage QFontEngineMac::alphaRGBMapForGlyph(glyph_t glyph, QFixed, int margin, const QTransform &t) -{ - QImage im = imageForGlyph(glyph, margin, true); - - if (t.type() >= QTransform::TxScale) { - im = im.transformed(t); - } - - qGamma_correct_back_to_linear_cs(&im); - - return im; -} - - -bool QFontEngineMac::canRender(const QChar *string, int len) -{ - Q_ASSERT(false); - Q_UNUSED(string); - Q_UNUSED(len); - return false; -} - -void QFontEngineMac::draw(CGContextRef ctx, qreal x, qreal y, const QTextItemInt &ti, int paintDeviceHeight) -{ - QVarLengthArray<QFixedPoint> positions; - QVarLengthArray<glyph_t> glyphs; - QTransform matrix; - matrix.translate(x, y); - 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(); - cgGlyphs[i] = glyphs[i]; - } - advances[glyphs.size() - 1].width = 0; - advances[glyphs.size() - 1].height = 0; - cgGlyphs[glyphs.size() - 1] = glyphs[glyphs.size() - 1]; - - CGContextSetFont(ctx, cgFont); - - 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); -} - -QFontEngine::FaceId QFontEngineMac::faceId() const -{ - FaceId ret; -#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) -if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) { - // CTFontGetPlatformFont - FSRef ref; - if (ATSFontGetFileReference(FMGetATSFontRefFromFont(fontID), &ref) != noErr) - return ret; - ret.filename = QByteArray(128, 0); - ret.index = fontID; - FSRefMakePath(&ref, (UInt8 *)ret.filename.data(), ret.filename.size()); -}else -#endif -{ - FSSpec spec; - if (ATSFontGetFileSpecification(FMGetATSFontRefFromFont(fontID), &spec) != noErr) - return ret; - - FSRef ref; - FSpMakeFSRef(&spec, &ref); - ret.filename = QByteArray(128, 0); - ret.index = fontID; - FSRefMakePath(&ref, (UInt8 *)ret.filename.data(), ret.filename.size()); -} - return ret; -} - -QByteArray QFontEngineMac::getSfntTable(uint tag) const -{ - ATSFontRef atsFont = FMGetATSFontRefFromFont(fontID); - - ByteCount length; - OSStatus status = ATSFontGetTable(atsFont, tag, 0, 0, 0, &length); - if (status != noErr) - return QByteArray(); - QByteArray table(length, 0); - // CTFontCopyTable - status = ATSFontGetTable(atsFont, tag, 0, table.length(), table.data(), &length); - if (status != noErr) - return QByteArray(); - return table; -} - -QFontEngine::Properties QFontEngineMac::properties() const -{ - QFontEngine::Properties props; - ATSFontRef atsFont = FMGetATSFontRefFromFont(fontID); - quint16 tmp; - // CTFontGetUnitsPerEm - if (ATSFontGetTable(atsFont, MAKE_TAG('h', 'e', 'a', 'd'), 18, 2, &tmp, 0) == noErr) - props.emSquare = qFromBigEndian<quint16>(tmp); - struct { - qint16 xMin; - qint16 yMin; - qint16 xMax; - qint16 yMax; - } bbox; - bbox.xMin = bbox.xMax = bbox.yMin = bbox.yMax = 0; - // CTFontGetBoundingBox - if (ATSFontGetTable(atsFont, MAKE_TAG('h', 'e', 'a', 'd'), 36, 8, &bbox, 0) == noErr) { - bbox.xMin = qFromBigEndian<quint16>(bbox.xMin); - bbox.yMin = qFromBigEndian<quint16>(bbox.yMin); - bbox.xMax = qFromBigEndian<quint16>(bbox.xMax); - bbox.yMax = qFromBigEndian<quint16>(bbox.yMax); - } - struct { - qint16 ascender; - qint16 descender; - qint16 linegap; - } metrics; - metrics.ascender = metrics.descender = metrics.linegap = 0; - // CTFontGetAscent, etc. - if (ATSFontGetTable(atsFont, MAKE_TAG('h', 'h', 'e', 'a'), 4, 6, &metrics, 0) == noErr) { - metrics.ascender = qFromBigEndian<quint16>(metrics.ascender); - metrics.descender = qFromBigEndian<quint16>(metrics.descender); - metrics.linegap = qFromBigEndian<quint16>(metrics.linegap); - } - props.ascent = metrics.ascender; - props.descent = -metrics.descender; - props.leading = metrics.linegap; - props.boundingBox = QRectF(bbox.xMin, -bbox.yMax, - bbox.xMax - bbox.xMin, - bbox.yMax - bbox.yMin); - props.italicAngle = 0; - props.capHeight = props.ascent; - - qint16 lw = 0; - // fonts lie - 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) - props.postscriptName = QString(psName).toUtf8(); - props.postscriptName = QFontEngine::convertToPostscriptFontFamilyName(props.postscriptName); - return props; -} - -void QFontEngineMac::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) -{ - ATSUStyle unscaledStyle; - ATSUCreateAndCopyStyle(style, &unscaledStyle); - - int emSquare = properties().emSquare.toInt(); - - const int maxAttributeCount = 4; - ATSUAttributeTag tags[maxAttributeCount + 1]; - ByteCount sizes[maxAttributeCount + 1]; - ATSUAttributeValuePtr values[maxAttributeCount + 1]; - int attributeCount = 0; - - Fixed size = FixRatio(emSquare, 1); - tags[attributeCount] = kATSUSizeTag; - 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); - Q_UNUSED(err); - - // various CTFont metrics functions: CTFontGetBoundingRectsForGlyphs, CTFontGetAdvancesForGlyphs - GlyphID atsuGlyph = glyph; - ATSGlyphScreenMetrics atsuMetrics; - ATSUGlyphGetScreenMetrics(unscaledStyle, 1, &atsuGlyph, 0, - /* iForcingAntiAlias =*/ false, - /* iAntiAliasSwitch =*/true, - &atsuMetrics); - - metrics->width = int(atsuMetrics.width); - metrics->height = int(atsuMetrics.height); - metrics->x = QFixed::fromReal(atsuMetrics.topLeft.x); - metrics->y = -QFixed::fromReal(atsuMetrics.topLeft.y); - metrics->xoff = QFixed::fromReal(atsuMetrics.deviceAdvance.x); - metrics->yoff = QFixed::fromReal(atsuMetrics.deviceAdvance.y); - - QFixedPoint p; - addGlyphsToPathHelper(unscaledStyle, &glyph, &p, 1, path); - - ATSUDisposeStyle(unscaledStyle); -} -#endif // !QT_MAC_USE_COCOA - -QT_END_NAMESPACE |