1/*
2 * Copyright (C) Research In Motion Limited 2011. All rights reserved.
3 *
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.
8 *
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.
13 *
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.
18 *
19 */
20
21#ifndef SVGTextRunRenderingContext_h
22#define SVGTextRunRenderingContext_h
23
24#include "Font.h"
25#include "TextRun.h"
26
27namespace WebCore {
28
29class RenderObject;
30class RenderSVGResource;
31
32class SVGTextRunRenderingContext final : public TextRun::RenderingContext {
33public:
34    static PassRef<SVGTextRunRenderingContext> create(RenderObject& renderer)
35    {
36        return adoptRef(*new SVGTextRunRenderingContext(renderer));
37    }
38
39    RenderObject& renderer() const { return m_renderer; }
40
41#if ENABLE(SVG_FONTS)
42    RenderSVGResource* activePaintingResource() const { return m_activePaintingResource; }
43    void setActivePaintingResource(RenderSVGResource* object) { m_activePaintingResource = object; }
44
45    virtual GlyphData glyphDataForCharacter(const Font&, WidthIterator&, UChar32 character, bool mirror, int currentCharacter, unsigned& advanceLength) override;
46    virtual void drawSVGGlyphs(GraphicsContext*, const SimpleFontData*, const GlyphBuffer&, int from, int to, const FloatPoint&) const override;
47    virtual float floatWidthUsingSVGFont(const Font&, const TextRun&, int& charsConsumed, String& glyphName) const override;
48    virtual bool applySVGKerning(const SimpleFontData*, WidthIterator&, GlyphBuffer*, int from) const override;
49#endif
50
51private:
52    SVGTextRunRenderingContext(RenderObject& renderer)
53        : m_renderer(renderer)
54#if ENABLE(SVG_FONTS)
55        , m_activePaintingResource(0)
56#endif
57    {
58    }
59
60    virtual ~SVGTextRunRenderingContext() { }
61
62#if ENABLE(SVG_FONTS)
63    virtual std::unique_ptr<GlyphToPathTranslator> createGlyphToPathTranslator(const SimpleFontData&, const TextRun*, const GlyphBuffer&, int from, int numGlyphs, const FloatPoint&) const override;
64#endif
65
66    RenderObject& m_renderer;
67
68#if ENABLE(SVG_FONTS)
69    RenderSVGResource* m_activePaintingResource;
70#endif
71};
72
73} // namespace WebCore
74
75#endif // SVGTextRunRenderingContext_h
76