1 /* 2 * Copyright (C) 2007 Rob Buis <buis (at) kde.org> 3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 4 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef SVGInlineTextBox_h 23 #define SVGInlineTextBox_h 24 25 #if ENABLE(SVG) 26 #include "InlineTextBox.h" 27 #include "SVGTextLayoutEngine.h" 28 29 namespace WebCore { 30 31 class RenderSVGResource; 32 class SVGRootInlineBox; 33 34 class SVGInlineTextBox : public InlineTextBox { 35 public: 36 SVGInlineTextBox(RenderObject*); 37 38 virtual bool isSVGInlineTextBox() const { return true; } 39 40 virtual int virtualLogicalHeight() const { return m_logicalHeight; } 41 void setLogicalHeight(int height) { m_logicalHeight = height; } 42 43 virtual int selectionTop() { return m_y; } 44 virtual int selectionHeight() { return m_logicalHeight; } 45 virtual int offsetForPosition(float x, bool includePartialGlyphs = true) const; 46 virtual float positionForOffset(int offset) const; 47 48 void paintSelectionBackground(PaintInfo&); 49 virtual void paint(PaintInfo&, int tx, int ty, int lineTop, int lineBottom); 50 virtual IntRect selectionRect(int absx, int absy, int startPosition, int endPosition); 51 52 bool mapStartEndPositionsIntoFragmentCoordinates(const SVGTextFragment&, int& startPosition, int& endPosition) const; 53 54 virtual IntRect calculateBoundaries() const; 55 56 void clearTextFragments() { m_textFragments.clear(); } 57 Vector<SVGTextFragment>& textFragments() { return m_textFragments; } 58 const Vector<SVGTextFragment>& textFragments() const { return m_textFragments; } 59 60 bool startsNewTextChunk() const { return m_startsNewTextChunk; } 61 void setStartsNewTextChunk(bool newTextChunk) { m_startsNewTextChunk = newTextChunk; } 62 63 int offsetForPositionInFragment(const SVGTextFragment&, float position, bool includePartialGlyphs) const; 64 FloatRect selectionRectForTextFragment(const SVGTextFragment&, int fragmentStartPosition, int fragmentEndPosition, RenderStyle*); 65 66 private: 67 TextRun constructTextRun(RenderStyle*, const SVGTextFragment&) const; 68 69 bool acquirePaintingResource(GraphicsContext*&, float scalingFactor, RenderObject*, RenderStyle*); 70 void releasePaintingResource(GraphicsContext*&, const Path*); 71 72 bool prepareGraphicsContextForTextPainting(GraphicsContext*&, float scalingFactor, TextRun&, RenderStyle*); 73 void restoreGraphicsContextAfterTextPainting(GraphicsContext*&, TextRun&); 74 75 void paintDecoration(GraphicsContext*, ETextDecoration, const SVGTextFragment&); 76 void paintDecorationWithStyle(GraphicsContext*, ETextDecoration, const SVGTextFragment&, RenderObject* decorationRenderer); 77 void paintTextWithShadows(GraphicsContext*, RenderStyle*, TextRun&, const SVGTextFragment&, int startPosition, int endPosition); 78 void paintText(GraphicsContext*, RenderStyle*, RenderStyle* selectionStyle, const SVGTextFragment&, bool hasSelection, bool paintSelectedTextOnly); 79 80 private: 81 int m_logicalHeight; 82 int m_paintingResourceMode; 83 bool m_startsNewTextChunk : 1; 84 RenderSVGResource* m_paintingResource; 85 Vector<SVGTextFragment> m_textFragments; 86 }; 87 88 } // namespace WebCore 89 90 #endif 91 #endif // SVGInlineTextBox_h 92
