/** * This file is part of the html renderer for KDE. * * Copyright (C) 1999 Lars Knoll (knoll@kde.org) * (C) 1999 Antti Koivisto (koivisto@kde.org) * (C) 2000 Dirk Mueller (mueller@kde.org) * Copyright (C) 2003, 2006 Apple Computer, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. * */ #import "config.h" #import "Font.h" #import "BlockExceptions.h" #import "CharacterNames.h" #import "FontFallbackList.h" #import "GlyphBuffer.h" #import "GraphicsContext.h" #import "IntRect.h" #import "Logging.h" #import "ShapeArabic.h" #import "SimpleFontData.h" #import "WebCoreSystemInterface.h" #import "WebCoreTextRenderer.h" #import "WKGraphics.h" #import <GraphicsServices/GraphicsServices.h> #define SYNTHETIC_OBLIQUE_ANGLE 14 #ifdef __LP64__ #define URefCon void* #else #define URefCon UInt32 #endif using namespace std; namespace WebCore { void Font::drawGlyphs(GraphicsContext* context, const SimpleFontData* font, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point, bool setColor) const { CGContextRef cgContext = WKGetCurrentGraphicsContext(); bool originalShouldUseFontSmoothing = CGContextGetShouldSmoothFonts(cgContext); bool newShouldUseFontSmoothing = WebCoreShouldUseFontSmoothing(); if (originalShouldUseFontSmoothing != newShouldUseFontSmoothing) CGContextSetShouldSmoothFonts(cgContext, newShouldUseFontSmoothing); #if !PLATFORM(IPHONE_SIMULATOR) // Font smoothing style CGFontSmoothingStyle originalFontSmoothingStyle = CGContextGetFontSmoothingStyle(cgContext); CGFontSmoothingStyle fontSmoothingStyle = WebCoreFontSmoothingStyle(); if (newShouldUseFontSmoothing && fontSmoothingStyle != originalFontSmoothingStyle) CGContextSetFontSmoothingStyle(cgContext, fontSmoothingStyle); // Font antialiasing style CGFontAntialiasingStyle originalFontAntialiasingStyle = CGContextGetFontAntialiasingStyle(cgContext); CGFontAntialiasingStyle fontAntialiasingStyle = WebCoreFontAntialiasingStyle(); if (fontAntialiasingStyle != originalFontAntialiasingStyle) CGContextSetFontAntialiasingStyle(cgContext, fontAntialiasingStyle); #endif const FontPlatformData& platformData = font->platformData(); GSFontSetFont(cgContext, platformData.font()); float fontSize = GSFontGetSize(platformData.font()); CGAffineTransform matrix = CGAffineTransformMakeScale(fontSize, fontSize); // Always flipped on Purple. matrix.b = -matrix.b; matrix.d = -matrix.d; if (platformData.m_syntheticOblique) matrix = CGAffineTransformConcat(matrix, CGAffineTransformMake(1, 0, -tanf(SYNTHETIC_OBLIQUE_ANGLE * acosf(0) / 90), 1, 0, 0)); CGContextSetTextMatrix(cgContext, matrix); CGContextSetFontSize(cgContext, 1.0f); 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); } if (originalShouldUseFontSmoothing != newShouldUseFontSmoothing) CGContextSetShouldSmoothFonts(cgContext, originalShouldUseFontSmoothing); #if !PLATFORM(IPHONE_SIMULATOR) if (newShouldUseFontSmoothing && fontSmoothingStyle != originalFontSmoothingStyle) CGContextSetFontSmoothingStyle(cgContext, originalFontSmoothingStyle); if (fontAntialiasingStyle != originalFontAntialiasingStyle) CGContextSetFontAntialiasingStyle(cgContext, originalFontAntialiasingStyle); #endif } }