1 /* 2 * Copyright (C) 2007 Rob Buis <buis@kde.org> 3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@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 #include "core/rendering/InlineTextBox.h" 26 #include "core/rendering/svg/RenderSVGResource.h" 27 #include "core/rendering/svg/SVGTextLayoutEngine.h" 28 29 namespace WebCore { 30 31 class RenderSVGResource; 32 33 class SVGInlineTextBox FINAL : public InlineTextBox { 34 public: 35 SVGInlineTextBox(RenderObject&); 36 isSVGInlineTextBox()37 virtual bool isSVGInlineTextBox() const OVERRIDE { return true; } 38 virtualLogicalHeight()39 virtual float virtualLogicalHeight() const OVERRIDE { return m_logicalHeight; } setLogicalHeight(float height)40 void setLogicalHeight(float height) { m_logicalHeight = height; } 41 42 virtual int offsetForPosition(float x, bool includePartialGlyphs = true) const OVERRIDE; 43 virtual float positionForOffset(int offset) const OVERRIDE; 44 45 void paintSelectionBackground(PaintInfo&); 46 virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom) OVERRIDE; 47 virtual LayoutRect localSelectionRect(int startPosition, int endPosition) OVERRIDE; 48 49 bool mapStartEndPositionsIntoFragmentCoordinates(const SVGTextFragment&, int& startPosition, int& endPosition) const; 50 51 virtual FloatRect calculateBoundaries() const OVERRIDE; 52 clearTextFragments()53 void clearTextFragments() { m_textFragments.clear(); } textFragments()54 Vector<SVGTextFragment>& textFragments() { return m_textFragments; } textFragments()55 const Vector<SVGTextFragment>& textFragments() const { return m_textFragments; } 56 57 virtual void dirtyLineBoxes() OVERRIDE; 58 startsNewTextChunk()59 bool startsNewTextChunk() const { return m_startsNewTextChunk; } setStartsNewTextChunk(bool newTextChunk)60 void setStartsNewTextChunk(bool newTextChunk) { m_startsNewTextChunk = newTextChunk; } 61 62 int offsetForPositionInFragment(const SVGTextFragment&, float position, bool includePartialGlyphs) const; 63 FloatRect selectionRectForTextFragment(const SVGTextFragment&, int fragmentStartPosition, int fragmentEndPosition, RenderStyle*); 64 65 private: 66 TextRun constructTextRun(RenderStyle*, const SVGTextFragment&) const; 67 68 bool acquirePaintingResource(GraphicsContext*&, float scalingFactor, RenderObject*, 69 RenderStyle*, RenderSVGResourceModeFlags); 70 void releasePaintingResource(GraphicsContext*&, const Path*, RenderSVGResourceModeFlags); 71 72 bool prepareGraphicsContextForTextPainting(GraphicsContext*&, float scalingFactor, TextRun&, 73 RenderStyle*, RenderSVGResourceModeFlags); 74 void restoreGraphicsContextAfterTextPainting(GraphicsContext*&, TextRun&, RenderSVGResourceModeFlags); 75 76 void paintDecoration(GraphicsContext*, TextDecoration, const SVGTextFragment&); 77 void paintDecorationWithStyle(GraphicsContext*, TextDecoration, const SVGTextFragment&, 78 RenderObject* decorationRenderer, RenderSVGResourceModeFlags); 79 void paintTextWithShadows(GraphicsContext*, RenderStyle*, TextRun&, const SVGTextFragment&, 80 int startPosition, int endPosition, RenderSVGResourceModeFlags); 81 void paintText(GraphicsContext*, RenderStyle*, RenderStyle* selectionStyle, const SVGTextFragment&, 82 RenderSVGResourceModeFlags, bool hasSelection, bool paintSelectedTextOnly); 83 84 virtual void paintDocumentMarker(GraphicsContext*, const FloatPoint&, DocumentMarker*, RenderStyle*, const Font&, bool) OVERRIDE FINAL; 85 virtual void paintTextMatchMarker(GraphicsContext*, const FloatPoint&, DocumentMarker*, RenderStyle*, const Font&) OVERRIDE FINAL; 86 87 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom) OVERRIDE; 88 89 private: 90 float m_logicalHeight; 91 bool m_startsNewTextChunk : 1; 92 RenderSVGResource* m_paintingResource; 93 Vector<SVGTextFragment> m_textFragments; 94 }; 95 96 DEFINE_INLINE_BOX_TYPE_CASTS(SVGInlineTextBox); 97 98 } // namespace WebCore 99 100 #endif // SVGInlineTextBox_h 101