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.
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.
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.
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.
22 #ifndef SVGInlineTextBox_h
23 #define SVGInlineTextBox_h
25 #include "core/rendering/InlineTextBox.h"
26 #include "core/rendering/svg/SVGTextLayoutEngine.h"
30 class RenderSVGResource;
31 class SVGRootInlineBox;
33 class SVGInlineTextBox FINAL : public InlineTextBox {
35 SVGInlineTextBox(RenderObject*);
37 virtual bool isSVGInlineTextBox() const { return true; }
39 virtual float virtualLogicalHeight() const { return m_logicalHeight; }
40 void setLogicalHeight(float height) { m_logicalHeight = height; }
42 virtual int selectionTop() { return top(); }
43 virtual int selectionHeight() { return static_cast<int>(ceilf(m_logicalHeight)); }
44 virtual int offsetForPosition(float x, bool includePartialGlyphs = true) const;
45 virtual float positionForOffset(int offset) const;
47 void paintSelectionBackground(PaintInfo&);
48 virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom);
49 virtual LayoutRect localSelectionRect(int startPosition, int endPosition);
51 bool mapStartEndPositionsIntoFragmentCoordinates(const SVGTextFragment&, int& startPosition, int& endPosition) const;
53 virtual FloatRect calculateBoundaries() const;
55 void clearTextFragments() { m_textFragments.clear(); }
56 Vector<SVGTextFragment>& textFragments() { return m_textFragments; }
57 const Vector<SVGTextFragment>& textFragments() const { return m_textFragments; }
59 virtual void dirtyLineBoxes() OVERRIDE FINAL;
61 bool startsNewTextChunk() const { return m_startsNewTextChunk; }
62 void setStartsNewTextChunk(bool newTextChunk) { m_startsNewTextChunk = newTextChunk; }
64 int offsetForPositionInFragment(const SVGTextFragment&, float position, bool includePartialGlyphs) const;
65 FloatRect selectionRectForTextFragment(const SVGTextFragment&, int fragmentStartPosition, int fragmentEndPosition, RenderStyle*);
68 TextRun constructTextRun(RenderStyle*, const SVGTextFragment&) const;
70 bool acquirePaintingResource(GraphicsContext*&, float scalingFactor, RenderObject*, RenderStyle*);
71 void releasePaintingResource(GraphicsContext*&, const Path*);
73 bool prepareGraphicsContextForTextPainting(GraphicsContext*&, float scalingFactor, TextRun&, RenderStyle*);
74 void restoreGraphicsContextAfterTextPainting(GraphicsContext*&, TextRun&);
76 void paintDecoration(GraphicsContext*, TextDecoration, const SVGTextFragment&);
77 void paintDecorationWithStyle(GraphicsContext*, TextDecoration, const SVGTextFragment&, RenderObject* decorationRenderer);
78 void paintTextWithShadows(GraphicsContext*, RenderStyle*, TextRun&, const SVGTextFragment&, int startPosition, int endPosition);
79 void paintText(GraphicsContext*, RenderStyle*, RenderStyle* selectionStyle, const SVGTextFragment&, bool hasSelection, bool paintSelectedTextOnly);
81 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom) OVERRIDE;
84 float m_logicalHeight;
85 unsigned m_paintingResourceMode : 4;
86 unsigned m_startsNewTextChunk : 1;
87 RenderSVGResource* m_paintingResource;
88 Vector<SVGTextFragment> m_textFragments;
91 inline SVGInlineTextBox* toSVGInlineTextBox(InlineBox* box)
93 ASSERT_WITH_SECURITY_IMPLICATION(!box || box->isSVGInlineTextBox());
94 return static_cast<SVGInlineTextBox*>(box);
97 } // namespace WebCore
99 #endif // SVGInlineTextBox_h