1 /* 2 * Copyright (C) 2006 Oliver Hunt <ojh16 (at) student.canterbury.ac.nz> 3 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. 4 * Copyright (C) 2008 Rob Buis <buis (at) kde.org> 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 RenderSVGInlineText_h 23 #define RenderSVGInlineText_h 24 25 #if ENABLE(SVG) 26 #include "RenderText.h" 27 #include "SVGTextLayoutAttributes.h" 28 29 namespace WebCore { 30 31 class SVGInlineTextBox; 32 33 class RenderSVGInlineText : public RenderText { 34 public: 35 RenderSVGInlineText(Node*, PassRefPtr<StringImpl>); 36 37 bool characterStartsNewTextChunk(int position) const; 38 39 SVGTextLayoutAttributes& layoutAttributes() { return m_attributes; } 40 const SVGTextLayoutAttributes& layoutAttributes() const { return m_attributes; } 41 void storeLayoutAttributes(const SVGTextLayoutAttributes& attributes) { m_attributes = attributes; } 42 43 float scalingFactor() const { return m_scalingFactor; } 44 const Font& scaledFont() const { return m_scaledFont; } 45 void updateScaledFont(); 46 static void computeNewScaledFontForStyle(RenderObject*, const RenderStyle*, float& scalingFactor, Font& scaledFont); 47 48 private: 49 virtual const char* renderName() const { return "RenderSVGInlineText"; } 50 51 virtual void destroy(); 52 virtual void styleDidChange(StyleDifference, const RenderStyle*); 53 54 // FIXME: We need objectBoundingBox for DRT results and filters at the moment. 55 // This should be fixed to give back the objectBoundingBox of the text root. 56 virtual FloatRect objectBoundingBox() const { return FloatRect(); } 57 58 virtual bool requiresLayer() const { return false; } 59 virtual bool isSVGInlineText() const { return true; } 60 61 virtual VisiblePosition positionForPoint(const IntPoint&); 62 virtual IntRect localCaretRect(InlineBox*, int caretOffset, int* extraWidthToEndOfLine = 0); 63 virtual IntRect linesBoundingBox() const; 64 virtual InlineTextBox* createTextBox(); 65 66 float m_scalingFactor; 67 Font m_scaledFont; 68 SVGTextLayoutAttributes m_attributes; 69 }; 70 71 inline RenderSVGInlineText* toRenderSVGInlineText(RenderObject* object) 72 { 73 ASSERT(!object || object->isSVGInlineText()); 74 return static_cast<RenderSVGInlineText*>(object); 75 } 76 77 inline const RenderSVGInlineText* toRenderSVGInlineText(const RenderObject* object) 78 { 79 ASSERT(!object || object->isSVGInlineText()); 80 return static_cast<const RenderSVGInlineText*>(object); 81 } 82 83 // This will catch anyone doing an unnecessary cast. 84 void toRenderSVGInlineText(const RenderSVGInlineText*); 85 86 } 87 88 #endif // ENABLE(SVG) 89 #endif // RenderSVGInlineText_h 90
