third_party/WebKit/Source/core/paint/SVGInlineTextBoxPainter.h

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SVGInlineTextBoxPainter_h
#define SVGInlineTextBoxPainter_h

#include "core/style/ComputedStyleConstants.h"
#include "core/layout/svg/LayoutSVGResourcePaintServer.h"
#include "wtf/Allocator.h"

namespace blink {

class FloatPoint;
class Font;
class GraphicsContext;
struct PaintInfo;
class LayoutPoint;
class LayoutSVGInlineText;
class ComputedStyle;
class SVGInlineTextBox;
struct SVGTextFragment;
class TextRun;
class DocumentMarker;

struct SVGTextFragmentWithRange {
    SVGTextFragmentWithRange(const SVGTextFragment& fragment, int startPosition, int endPosition)
        : fragment(fragment)
        , startPosition(startPosition)
        , endPosition(endPosition)
    {
    }
    const SVGTextFragment& fragment;
    int startPosition;
    int endPosition;
};

class SVGInlineTextBoxPainter {
    STACK_ALLOCATED();
public:
    SVGInlineTextBoxPainter(const SVGInlineTextBox& svgInlineTextBox) : m_svgInlineTextBox(svgInlineTextBox) { }
    void paint(const PaintInfo&, const LayoutPoint&);
    void paintSelectionBackground(const PaintInfo&);
    void paintTextMatchMarkerForeground(const PaintInfo&, const LayoutPoint&, DocumentMarker*, const ComputedStyle&, const Font&);
    void paintTextMatchMarkerBackground(const PaintInfo&, const LayoutPoint&, DocumentMarker*, const ComputedStyle&, const Font&);

private:
    bool shouldPaintSelection(const PaintInfo&) const;
    FloatRect boundsForDrawingRecorder(const PaintInfo&, const ComputedStyle&, const LayoutPoint&, bool includeSelectionRect) const;
    void paintTextFragments(const PaintInfo&, LayoutObject&);
    void paintDecoration(const PaintInfo&, TextDecoration, const SVGTextFragment&);
    bool setupTextPaint(const PaintInfo&, const ComputedStyle&, LayoutSVGResourceMode, SkPaint&);
    void paintText(const PaintInfo&, TextRun&, const SVGTextFragment&, int startPosition, int endPosition, const SkPaint&);
    void paintText(const PaintInfo&, const ComputedStyle&, const ComputedStyle& selectionStyle, const SVGTextFragment&, LayoutSVGResourceMode, bool shouldPaintSelection);
    Vector<SVGTextFragmentWithRange> collectTextMatches(DocumentMarker*) const;
    Vector<SVGTextFragmentWithRange> collectFragmentsInRange(int startPosition, int endPosition) const;
    LayoutObject& inlineLayoutObject() const;
    LayoutObject& parentInlineLayoutObject() const;
    LayoutSVGInlineText& inlineText() const;

    const SVGInlineTextBox& m_svgInlineTextBox;
};

} // namespace blink

#endif // SVGInlineTextBoxPainter_h