1 /* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #ifndef RenderCombineText_h 22 #define RenderCombineText_h 23 24 #include "core/rendering/RenderText.h" 25 #include "platform/fonts/Font.h" 26 27 namespace blink { 28 29 class RenderCombineText FINAL : public RenderText { 30 public: 31 RenderCombineText(Node*, PassRefPtr<StringImpl>); 32 33 void combineText(); 34 void adjustTextOrigin(FloatPoint& textOrigin, const FloatRect& boxRect) const; 35 void getStringToRender(int, StringView&, int& length) const; 36 bool isCombined() const { return m_isCombined; } 37 float combinedTextWidth(const Font& font) const { return font.fontDescription().computedSize(); } 38 const Font& originalFont() const { return parent()->style()->font(); } 39 40 private: 41 virtual bool isCombineText() const OVERRIDE { return true; } 42 virtual float width(unsigned from, unsigned length, const Font&, float xPosition, TextDirection, HashSet<const SimpleFontData*>* fallbackFonts = 0, GlyphOverflow* = 0) const OVERRIDE; 43 virtual const char* renderName() const OVERRIDE { return "RenderCombineText"; } 44 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE; 45 virtual void setTextInternal(PassRefPtr<StringImpl>) OVERRIDE; 46 47 float m_combinedTextWidth; 48 String m_renderingText; 49 bool m_isCombined : 1; 50 bool m_needsFontUpdate : 1; 51 }; 52 53 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderCombineText, isCombineText()); 54 55 } // namespace blink 56 57 #endif // RenderCombineText_h 58
