/* * Copyright (c) 2007, 2008, Google Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "Font.h" #include "FloatRect.h" #include "GlyphBuffer.h" #include "GraphicsContext.h" #include "NotImplemented.h" #include "PlatformContextSkia.h" #include "SimpleFontData.h" #include "SkCanvas.h" #include "SkPaint.h" #include "SkTemplates.h" #include "SkTypeface.h" #include "SkUtils.h" namespace WebCore { void Font::drawGlyphs(GraphicsContext* gc, const SimpleFontData* font, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point) const { SkCanvas* canvas = gc->platformContext()->canvas(); SkPaint paint; gc->platformContext()->setupPaintCommon(&paint); font->platformData().setupPaint(&paint); paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); paint.setColor(gc->fillColor().rgb()); SkASSERT(sizeof(GlyphBufferGlyph) == sizeof(uint16_t)); // compile-time assert const GlyphBufferGlyph* glyphs = glyphBuffer.glyphs(from); SkScalar x = SkFloatToScalar(point.x()); SkScalar y = SkFloatToScalar(point.y()); // FIXME: text rendering speed: // Android has code in their WebCore fork to special case when the // GlyphBuffer has no advances other than the defaults. In that case the // text drawing can proceed faster. However, it's unclear when those // patches may be upstreamed to WebKit so we always use the slower path // here. const GlyphBufferAdvance* adv = glyphBuffer.advances(from); SkAutoSTMalloc<32, SkPoint> storage(numGlyphs); SkPoint* pos = storage.get(); for (int i = 0; i < numGlyphs; i++) { pos[i].set(x, y); x += SkFloatToScalar(adv[i].width()); y += SkFloatToScalar(adv[i].height()); } canvas->drawPosText(glyphs, numGlyphs << 1, pos, paint); } void Font::drawComplexText(GraphicsContext* context, const TextRun& run, const FloatPoint& point, int from, int to) const { notImplemented(); } float Font::floatWidthForComplexText(const TextRun& run) const { notImplemented(); return 0; } int Font::offsetForPositionForComplexText(const TextRun& run, int x, bool includePartialGlyphs) const { notImplemented(); return 0; } FloatRect Font::selectionRectForComplexText(const TextRun& run, const IntPoint& point, int h, int from, int to) const { notImplemented(); return FloatRect(); } } // namespace WebCore