diff options
Diffstat (limited to 'src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm')
| -rw-r--r-- | src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm | 190 |
1 files changed, 122 insertions, 68 deletions
diff --git a/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm b/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm index 23fe48b493..7e1dfd9275 100644 --- a/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm +++ b/src/platformsupport/fontdatabases/mac/qfontengine_coretext.mm @@ -1,54 +1,49 @@ /**************************************************************************** ** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtGui module of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:LGPL$ +** $QT_BEGIN_LICENSE:LGPL21$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. ** ** 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. +** General Public License version 2.1 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qfontengine_coretext_p.h" +#include <qpa/qplatformfontdatabase.h> #include <QtCore/qendian.h> #include <QtCore/qsettings.h> #include <private/qimage_p.h> +#include <cmath> + QT_BEGIN_NAMESPACE -static float SYNTHETIC_ITALIC_SKEW = tanf(14 * acosf(0) / 90); +static float SYNTHETIC_ITALIC_SKEW = std::tan(14.f * std::acos(0.f) / 90.f); bool QCoreTextFontEngine::ct_getSfntTable(void *user_data, uint tag, uchar *buffer, uint *length) { @@ -66,6 +61,29 @@ bool QCoreTextFontEngine::ct_getSfntTable(void *user_data, uint tag, uchar *buff return true; } +QFont::Weight QCoreTextFontEngine::qtWeightFromCFWeight(float value) +{ + if (value >= 0.62) + return QFont::Black; + if (value >= 0.5) + return QFont::ExtraBold; + if (value >= 0.4) + return QFont::Bold; + if (value >= 0.3) + return QFont::DemiBold; + if (value >= 0.2) + return QFont::Medium; + if (value == 0.0) + return QFont::Normal; + if (value <= -0.4) + return QFont::Light; + if (value <= -0.6) + return QFont::ExtraLight; + if (value <= -0.8) + return QFont::Thin; + return QFont::Normal; +} + static void loadAdvancesForGlyphs(CTFontRef ctfont, QVarLengthArray<CGGlyph> &cgGlyphs, QGlyphLayout *glyphs, int len, @@ -88,6 +106,16 @@ static void loadAdvancesForGlyphs(CTFontRef ctfont, } } +static float getTraitValue(CFDictionaryRef allTraits, CFStringRef trait) +{ + if (CFDictionaryContainsKey(allTraits, trait)) { + CFNumberRef traitNum = (CFNumberRef) CFDictionaryGetValue(allTraits, trait); + float v = 0; + CFNumberGetValue(traitNum, kCFNumberFloatType, &v); + return v; + } + return 0; +} int QCoreTextFontEngine::antialiasingThreshold = 0; QFontEngine::GlyphFormat QCoreTextFontEngine::defaultGlyphFormat = QFontEngine::Format_A32; @@ -129,39 +157,15 @@ QCoreTextFontEngine::~QCoreTextFontEngine() CFRelease(ctfont); } -static QFont::Weight weightFromInteger(int weight) -{ - if (weight < 400) - return QFont::Light; - else if (weight < 600) - return QFont::Normal; - else if (weight < 700) - return QFont::DemiBold; - else if (weight < 800) - return QFont::Bold; - else - return QFont::Black; -} - -int getTraitValue(CFDictionaryRef allTraits, CFStringRef trait) -{ - if (CFDictionaryContainsKey(allTraits, trait)) { - CFNumberRef traitNum = (CFNumberRef) CFDictionaryGetValue(allTraits, trait); - float v = 0; - CFNumberGetValue(traitNum, kCFNumberFloatType, &v); - // the value we get from CFNumberRef is from -1.0 to 1.0 - int value = v * 500 + 500; - return value; - } - - return 0; -} - void QCoreTextFontEngine::init() { Q_ASSERT(ctfont != NULL); Q_ASSERT(cgFont != NULL); + face_id.index = 0; + QCFString name = CTFontCopyName(ctfont, kCTFontUniqueNameKey); + face_id.filename = QCFString::toQString(name).toUtf8(); + QCFString family = CTFontCopyFamilyName(ctfont); fontDef.family = family; @@ -182,8 +186,8 @@ void QCoreTextFontEngine::init() fontDef.style = QFont::StyleItalic; CFDictionaryRef allTraits = CTFontCopyTraits(ctfont); - fontDef.weight = weightFromInteger(getTraitValue(allTraits, kCTFontWeightTrait)); - int slant = getTraitValue(allTraits, kCTFontSlantTrait); + fontDef.weight = QCoreTextFontEngine::qtWeightFromCFWeight(getTraitValue(allTraits, kCTFontWeightTrait)); + int slant = static_cast<int>(getTraitValue(allTraits, kCTFontSlantTrait) * 500 + 500); if (slant > 500 && !(traits & kCTFontItalicTrait)) fontDef.style = QFont::StyleOblique; CFRelease(allTraits); @@ -246,11 +250,9 @@ bool QCoreTextFontEngine::stringToCMap(const QChar *str, int len, QGlyphLayout * int glyph_pos = 0; for (int i = 0; i < len; ++i) { - if (cgGlyphs[i]) { - glyphs->glyphs[glyph_pos] = cgGlyphs[i]; - if (glyph_pos < i) - cgGlyphs[glyph_pos] = cgGlyphs[i]; - } + glyphs->glyphs[glyph_pos] = cgGlyphs[i]; + if (glyph_pos < i) + cgGlyphs[glyph_pos] = cgGlyphs[i]; glyph_pos++; // If it's a non-BMP char, skip the lower part of surrogate pair and go @@ -646,15 +648,11 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosit QImage im = imageForGlyph(glyph, subPixelPosition, false, x); - 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); + QImage alphaMap(im.width(), im.height(), QImage::Format_Alpha8); for (int y=0; y<im.height(); ++y) { uint *src = (uint*) im.scanLine(y); - uchar *dst = indexed.scanLine(y); + uchar *dst = alphaMap.scanLine(y); for (int x=0; x<im.width(); ++x) { *dst = qGray(*src); ++dst; @@ -662,7 +660,7 @@ QImage QCoreTextFontEngine::alphaMapForGlyph(glyph_t glyph, QFixed subPixelPosit } } - return indexed; + return alphaMap; } QImage QCoreTextFontEngine::alphaRGBMapForGlyph(glyph_t glyph, QFixed subPixelPosition, const QTransform &x) @@ -700,7 +698,7 @@ void QCoreTextFontEngine::recalcAdvances(QGlyphLayout *glyphs, QFontEngine::Shap QFontEngine::FaceId QCoreTextFontEngine::faceId() const { - return QFontEngine::FaceId(); + return face_id; } bool QCoreTextFontEngine::canRender(const QChar *string, int len) const @@ -714,9 +712,26 @@ bool QCoreTextFontEngine::getSfntTableData(uint tag, uchar *buffer, uint *length return ct_getSfntTable((void *)&ctfont, tag, buffer, length); } -void QCoreTextFontEngine::getUnscaledGlyph(glyph_t, QPainterPath *, glyph_metrics_t *) +void QCoreTextFontEngine::getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metric) { - // ### + CGAffineTransform cgMatrix = CGAffineTransformIdentity; + + qreal emSquare = CTFontGetUnitsPerEm(ctfont); + qreal scale = emSquare / CTFontGetSize(ctfont); + cgMatrix = CGAffineTransformScale(cgMatrix, scale, -scale); + + QCFType<CGPathRef> cgpath = CTFontCreatePathForGlyph(ctfont, (CGGlyph) glyph, &cgMatrix); + ConvertPathInfo info(path, QPointF(0,0)); + CGPathApply(cgpath, &info, convertCGPathToQPainterPath); + + *metric = boundingBox(glyph); + // scale the metrics too + metric->width = QFixed::fromReal(metric->width.toReal() * scale); + metric->height = QFixed::fromReal(metric->height.toReal() * scale); + metric->x = QFixed::fromReal(metric->x.toReal() * scale); + metric->y = QFixed::fromReal(metric->y.toReal() * scale); + metric->xoff = QFixed::fromReal(metric->xoff.toReal() * scale); + metric->yoff = QFixed::fromReal(metric->yoff.toReal() * scale); } QFixed QCoreTextFontEngine::emSquareSize() const @@ -744,4 +759,43 @@ bool QCoreTextFontEngine::supportsTransformation(const QTransform &transform) co return false; } +QFontEngine::Properties QCoreTextFontEngine::properties() const +{ + Properties result; + + QCFString psName, copyright; + psName = CTFontCopyPostScriptName(ctfont); + copyright = CTFontCopyName(ctfont, kCTFontCopyrightNameKey); + result.postscriptName = QCFString::toQString(psName).toUtf8(); + result.copyright = QCFString::toQString(copyright).toUtf8(); + + qreal emSquare = CTFontGetUnitsPerEm(ctfont); + qreal scale = emSquare / CTFontGetSize(ctfont); + + CGRect cgRect = CTFontGetBoundingBox(ctfont); + result.boundingBox = QRectF(cgRect.origin.x * scale, + -CTFontGetAscent(ctfont) * scale, + cgRect.size.width * scale, + cgRect.size.height * scale); + + result.emSquare = emSquareSize(); + result.ascent = QFixed::fromReal(CTFontGetAscent(ctfont) * scale); + result.descent = QFixed::fromReal(CTFontGetDescent(ctfont) * scale); + result.leading = QFixed::fromReal(CTFontGetLeading(ctfont) * scale); + result.italicAngle = QFixed::fromReal(CTFontGetSlantAngle(ctfont)); + result.capHeight = QFixed::fromReal(CTFontGetCapHeight(ctfont) * scale); + result.lineWidth = QFixed::fromReal(CTFontGetUnderlineThickness(ctfont) * scale); + + if (fontDef.styleStrategy & QFont::ForceIntegerMetrics) { + result.ascent = result.ascent.round(); + result.descent = result.descent.round(); + result.leading = result.leading.round(); + result.italicAngle = result.italicAngle.round(); + result.capHeight = result.capHeight.round(); + result.lineWidth = result.lineWidth.round(); + } + + return result; +} + QT_END_NAMESPACE |