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, ti.num_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, multiEngine->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); }
void Font::drawGlyphs(GraphicsContext* graphicsContext, const FontData* font, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const { CGContextRef cgContext = graphicsContext->platformContext(); uint32_t oldFontSmoothingStyle = wkSetFontSmoothingStyle(cgContext); const FontPlatformData& platformData = font->platformData(); //NSFont* drawFont; //if ([gContext isDrawingToScreen]) { // drawFont = [platformData.font screenFont]; // if (drawFont != platformData.font) // // We are getting this in too many places (3406411); use ERROR so it only prints on debug versions for now. (We should debug this also, eventually). // LOG_ERROR("Attempting to set non-screen font (%@) when drawing to screen. Using screen font anyway, may result in incorrect metrics.", // [[[platformData.font fontDescriptor] fontAttributes] objectForKey:NSFontNameAttribute]); //} else { // drawFont = [platformData.font printerFont]; // if (drawFont != platformData.font) // NSLog(@"Attempting to set non-printer font (%@) when printing. Using printer font anyway, may result in incorrect metrics.", // [[[platformData.font fontDescriptor] fontAttributes] objectForKey:NSFontNameAttribute]); //} CGContextSetFont(cgContext, platformData.cgFont()); CGAffineTransform matrix = CGAffineTransformIdentity; matrix.b = -matrix.b; matrix.d = -matrix.d; if (platformData.syntheticOblique()) { static float skew = -tanf(syntheticObliqueAngle * acosf(0) / 90); matrix = CGAffineTransformConcat(matrix, CGAffineTransformMake(1, 0, skew, 1, 0, 0)); } // Uniscribe gives us offsets to help refine the positioning of combining glyphs. FloatSize translation = glyphBuffer.offsetAt(from); if (translation.width() || translation.height()) CGAffineTransformTranslate(matrix, translation.width(), translation.height()); CGContextSetTextMatrix(cgContext, matrix); //wkSetCGFontRenderingMode(cgContext, drawFont); CGContextSetFontSize(cgContext, platformData.size()); CGContextSetTextPosition(cgContext, point.x(), point.y()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); if (font->m_syntheticBoldOffset) { CGContextSetTextPosition(cgContext, point.x() + font->m_syntheticBoldOffset, point.y()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); } wkRestoreFontSmoothingStyle(cgContext, oldFontSmoothingStyle); }
void drawTextWithSpacing(GraphicsContext* graphicsContext, const SimpleFontData* font, const wxColour& color, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) { graphicsContext->save(); wxGCDC* dc = static_cast<wxGCDC*>(graphicsContext->platformContext()); wxFont* wxfont = font->getWxFont(); graphicsContext->setFillColor(graphicsContext->fillColor(), ColorSpaceDeviceRGB); CGContextRef cgContext = static_cast<CGContextRef>(dc->GetGraphicsContext()->GetNativeContext()); CGFontRef cgFont = font->platformData().cgFont(); CGContextSetFont(cgContext, cgFont); CGContextSetFontSize(cgContext, wxfont->GetPointSize()); CGFloat red, green, blue, alpha; graphicsContext->fillColor().getRGBA(red, green, blue, alpha); CGContextSetRGBFillColor(cgContext, red, green, blue, alpha); CGAffineTransform matrix = CGAffineTransformIdentity; matrix.b = -matrix.b; matrix.d = -matrix.d; CGContextSetTextMatrix(cgContext, matrix); CGContextSetTextPosition(cgContext, point.x(), point.y()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); if (cgFont) CGFontRelease(cgFont); graphicsContext->restore(); }
void Font::drawGlyphs(GraphicsContext* graphicsContext, const SimpleFontData* font, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const { CGContextRef cgContext = graphicsContext->platformContext(); bool shouldUseFontSmoothing = WebCoreShouldUseFontSmoothing(); switch(fontDescription().fontSmoothing()) { case Antialiased: { graphicsContext->setShouldAntialias(true); shouldUseFontSmoothing = false; break; } case SubpixelAntialiased: { graphicsContext->setShouldAntialias(true); shouldUseFontSmoothing = true; break; } case NoSmoothing: { graphicsContext->setShouldAntialias(false); shouldUseFontSmoothing = false; break; } case AutoSmoothing: { // For the AutoSmooth case, don't do anything! Keep the default settings. break; } default: ASSERT_NOT_REACHED(); } if (font->platformData().useGDI() && !shouldUseFontSmoothing) { drawGDIGlyphs(graphicsContext, font, glyphBuffer, from, numGlyphs, point); return; } uint32_t oldFontSmoothingStyle = wkSetFontSmoothingStyle(cgContext, shouldUseFontSmoothing); const FontPlatformData& platformData = font->platformData(); CGContextSetFont(cgContext, platformData.cgFont()); CGAffineTransform matrix = CGAffineTransformIdentity; matrix.b = -matrix.b; matrix.d = -matrix.d; if (platformData.syntheticOblique()) { static float skew = -tanf(syntheticObliqueAngle * piFloat / 180.0f); matrix = CGAffineTransformConcat(matrix, CGAffineTransformMake(1, 0, skew, 1, 0, 0)); } CGContextSetTextMatrix(cgContext, matrix); // Uniscribe gives us offsets to help refine the positioning of combining glyphs. FloatSize translation = glyphBuffer.offsetAt(from); CGContextSetFontSize(cgContext, platformData.size()); wkSetCGContextFontRenderingStyle(cgContext, font->isSystemFont(), false, font->platformData().useGDI()); FloatSize shadowOffset; float shadowBlur; Color shadowColor; ColorSpace shadowColorSpace; graphicsContext->getShadow(shadowOffset, shadowBlur, shadowColor, shadowColorSpace); bool hasSimpleShadow = graphicsContext->textDrawingMode() == TextModeFill && shadowColor.isValid() && !shadowBlur && (!graphicsContext->shadowsIgnoreTransforms() || graphicsContext->getCTM().isIdentityOrTranslationOrFlipped()); if (hasSimpleShadow) { // Paint simple shadows ourselves instead of relying on CG shadows, to avoid losing subpixel antialiasing. graphicsContext->clearShadow(); Color fillColor = graphicsContext->fillColor(); Color shadowFillColor(shadowColor.red(), shadowColor.green(), shadowColor.blue(), shadowColor.alpha() * fillColor.alpha() / 255); graphicsContext->setFillColor(shadowFillColor, ColorSpaceDeviceRGB); float shadowTextX = point.x() + translation.width() + shadowOffset.width(); // If shadows are ignoring transforms, then we haven't applied the Y coordinate flip yet, so down is negative. float shadowTextY = point.y() + translation.height() + shadowOffset.height() * (graphicsContext->shadowsIgnoreTransforms() ? -1 : 1); CGContextSetTextPosition(cgContext, shadowTextX, shadowTextY); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); if (font->syntheticBoldOffset()) { CGContextSetTextPosition(cgContext, point.x() + translation.width() + shadowOffset.width() + font->syntheticBoldOffset(), point.y() + translation.height() + shadowOffset.height()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); } graphicsContext->setFillColor(fillColor, ColorSpaceDeviceRGB); } CGContextSetTextPosition(cgContext, point.x() + translation.width(), point.y() + translation.height()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); if (font->syntheticBoldOffset()) { CGContextSetTextPosition(cgContext, point.x() + translation.width() + font->syntheticBoldOffset(), point.y() + translation.height()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); } if (hasSimpleShadow) graphicsContext->setShadow(shadowOffset, shadowBlur, shadowColor, ColorSpaceDeviceRGB); wkRestoreFontSmoothingStyle(cgContext, oldFontSmoothingStyle); }
void drawTextWithSpacing(GraphicsContext* graphicsContext, const SimpleFontData* font, const wxColour& color, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) { graphicsContext->save(); wxGCDC* dc = static_cast<wxGCDC*>(graphicsContext->platformContext()); wxFont* wxfont = font->getWxFont(); graphicsContext->setFillColor(graphicsContext->fillColor(), DeviceColorSpace); CGContextRef cgContext = static_cast<CGContextRef>(dc->GetGraphicsContext()->GetNativeContext()); CGFontRef cgFont; #ifdef wxOSX_USE_CORE_TEXT && wxOSX_USE_CORE_TEXT cgFont = CTFontCopyGraphicsFont((CTFontRef)wxfont->OSXGetCTFont(), NULL); #else ATSFontRef fontRef; fontRef = FMGetATSFontRefFromFont(wxfont->MacGetATSUFontID()); if (fontRef) cgFont = CGFontCreateWithPlatformFont((void*)&fontRef); #endif CGContextSetFont(cgContext, cgFont); CGContextSetFontSize(cgContext, wxfont->GetPointSize()); CGFloat red, green, blue, alpha; graphicsContext->fillColor().getRGBA(red, green, blue, alpha); CGContextSetRGBFillColor(cgContext, red, green, blue, alpha); CGAffineTransform matrix = CGAffineTransformIdentity; matrix.b = -matrix.b; matrix.d = -matrix.d; CGContextSetTextMatrix(cgContext, matrix); CGContextSetTextPosition(cgContext, point.x(), point.y()); const FloatSize* advanceSizes = static_cast<const FloatSize*>(glyphBuffer.advances(from)); int size = glyphBuffer.size() - from; CGSize sizes[size]; CGGlyph glyphs[numGlyphs]; // if the function doesn't exist, we're probably on tiger and need to grab the // function under its old name, CGFontGetGlyphsForUnicodes if (!CGFontGetGlyphsForUnichars) CGFontGetGlyphsForUnichars = (CGFontGetGlyphsForUnicharsPtr)dlsym(RTLD_DEFAULT, "CGFontGetGlyphsForUnicodes"); // Let's make sure we got the function under one name or another! ASSERT(CGFontGetGlyphsForUnichars); CGFontGetGlyphsForUnichars(cgFont, glyphBuffer.glyphs(from), glyphs, numGlyphs); for (int i = 0; i < size; i++) { FloatSize fsize = advanceSizes[i]; sizes[i] = CGSizeMake(fsize.width(), fsize.height()); } CGContextShowGlyphsWithAdvances(cgContext, glyphs, sizes, numGlyphs); if (cgFont) CGFontRelease(cgFont); graphicsContext->restore(); }
QImage QFontEngineMac::alphaMapForGlyph(glyph_t glyph) { const glyph_metrics_t br = boundingBox(glyph); QImage im(qRound(br.width)+2, qRound(br.height)+2, QImage::Format_RGB32); im.fill(0); CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB(); #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; #endif CGContextRef ctx = CGBitmapContextCreate(im.bits(), im.width(), im.height(), 8, im.bytesPerLine(), colorspace, cgflags); CGColorSpaceRelease(colorspace); CGContextSetFontSize(ctx, fontDef.pixelSize); CGContextSetShouldAntialias(ctx, fontDef.pointSize > qt_antialiasing_threshold && !(fontDef.styleStrategy & QFont::NoAntialias)); 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, multiEngine->transform); CGContextSetTextMatrix(ctx, cgMatrix); CGContextSetRGBFillColor(ctx, 1, 1, 1, 1); CGContextSetTextDrawingMode(ctx, kCGTextFill); CGContextSetFont(ctx, cgFont); qreal pos_x = -br.x.toReal()+1, 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 (synthesisFlags & QFontEngine::SynthesizedBold) { CGContextSetTextPosition(ctx, pos_x + 0.5 * lineThickness().toReal(), pos_y); CGContextShowGlyphsWithAdvances(ctx, &cgGlyph, &advance, 1); } CGContextRelease(ctx); 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; }
void Font::drawGlyphs(GraphicsContext* graphicsContext, const SimpleFontData* font, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const { CGContextRef cgContext = graphicsContext->platformContext(); bool shouldUseFontSmoothing = WebCoreShouldUseFontSmoothing(); if (font->platformData().useGDI()) { static bool canUsePlatformNativeGlyphs = wkCanUsePlatformNativeGlyphs(); if (!canUsePlatformNativeGlyphs || !shouldUseFontSmoothing || (graphicsContext->textDrawingMode() & cTextStroke)) { drawGDIGlyphs(graphicsContext, font, glyphBuffer, from, numGlyphs, point); return; } } uint32_t oldFontSmoothingStyle = wkSetFontSmoothingStyle(cgContext, shouldUseFontSmoothing); const FontPlatformData& platformData = font->platformData(); CGContextSetFont(cgContext, platformData.cgFont()); CGAffineTransform matrix = CGAffineTransformIdentity; matrix.b = -matrix.b; matrix.d = -matrix.d; if (platformData.syntheticOblique()) { static float skew = -tanf(syntheticObliqueAngle * piFloat / 180.0f); matrix = CGAffineTransformConcat(matrix, CGAffineTransformMake(1, 0, skew, 1, 0, 0)); } CGContextSetTextMatrix(cgContext, matrix); // Uniscribe gives us offsets to help refine the positioning of combining glyphs. FloatSize translation = glyphBuffer.offsetAt(from); CGContextSetFontSize(cgContext, platformData.size()); wkSetCGContextFontRenderingStyle(cgContext, font->isSystemFont(), false, font->platformData().useGDI()); IntSize shadowSize; int shadowBlur; Color shadowColor; graphicsContext->getShadow(shadowSize, shadowBlur, shadowColor); bool hasSimpleShadow = graphicsContext->textDrawingMode() == cTextFill && shadowColor.isValid() && !shadowBlur; if (hasSimpleShadow) { // Paint simple shadows ourselves instead of relying on CG shadows, to avoid losing subpixel antialiasing. graphicsContext->clearShadow(); Color fillColor = graphicsContext->fillColor(); Color shadowFillColor(shadowColor.red(), shadowColor.green(), shadowColor.blue(), shadowColor.alpha() * fillColor.alpha() / 255); graphicsContext->setFillColor(shadowFillColor); CGContextSetTextPosition(cgContext, point.x() + translation.width() + shadowSize.width(), point.y() + translation.height() + shadowSize.height()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); if (font->m_syntheticBoldOffset) { CGContextSetTextPosition(cgContext, point.x() + translation.width() + shadowSize.width() + font->m_syntheticBoldOffset, point.y() + translation.height() + shadowSize.height()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); } graphicsContext->setFillColor(fillColor); } CGContextSetTextPosition(cgContext, point.x() + translation.width(), point.y() + translation.height()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); if (font->m_syntheticBoldOffset) { CGContextSetTextPosition(cgContext, point.x() + translation.width() + font->m_syntheticBoldOffset, point.y() + translation.height()); CGContextShowGlyphsWithAdvances(cgContext, glyphBuffer.glyphs(from), glyphBuffer.advances(from), numGlyphs); } if (hasSimpleShadow) graphicsContext->setShadow(shadowSize, shadowBlur, shadowColor); wkRestoreFontSmoothingStyle(cgContext, oldFontSmoothingStyle); }