2 * Copyright (C) Research In Motion Limited 2011. All rights reserved.
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.
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.
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.
21 #ifndef SVGTextRunRenderingContext_h
22 #define SVGTextRunRenderingContext_h
24 #include "platform/fonts/Font.h"
25 #include "platform/text/TextRun.h"
30 class RenderSVGResource;
32 class SVGTextRunRenderingContext FINAL : public TextRun::RenderingContext {
34 static PassRefPtr<SVGTextRunRenderingContext> create(RenderObject* renderer)
36 return adoptRef(new SVGTextRunRenderingContext(renderer));
39 RenderObject* renderer() const { return m_renderer; }
42 virtual GlyphData glyphDataForCharacter(const Font&, const TextRun&, WidthIterator&, UChar32 character, bool mirror, int currentCharacter, unsigned& advanceLength) OVERRIDE;
43 virtual void drawSVGGlyphs(GraphicsContext*, const TextRun&, const SimpleFontData*, const GlyphBuffer&, int from, int to, const FloatPoint&) const OVERRIDE;
44 virtual float floatWidthUsingSVGFont(const Font&, const TextRun&, int& charsConsumed, Glyph& glyphId) const OVERRIDE;
46 virtual GlyphData glyphDataForCharacter(const Font&, const TextRun&, WidthIterator&, UChar32 character, bool mirror, int currentCharacter, unsigned& advanceLength) OVERRIDE { return 0; }
47 virtual void drawSVGGlyphs(GraphicsContext*, const TextRun&, const SimpleFontData*, const GlyphBuffer&, int from, int to, const FloatPoint&) const OVERRIDE { }
48 virtual float floatWidthUsingSVGFont(const Font&, const TextRun&, int& charsConsumed, Glyph& glyphId) const OVERRIDE { return 0; }
52 SVGTextRunRenderingContext(RenderObject* renderer)
53 : m_renderer(renderer)
57 virtual ~SVGTextRunRenderingContext() { }
59 RenderObject* m_renderer;
62 inline bool textRunNeedsRenderingContext(const Font& font)
64 // Only save the extra data if SVG Fonts are used, which depend on them.
65 // FIXME: SVG Fonts won't work as segmented fonts at the moment, if that's fixed, we need to check for them as well below.
66 ASSERT(font.primaryFont());
67 return font.primaryFont()->isSVGFont();
72 #endif // SVGTextRunRenderingContext_h