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

namespace blink {

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

struct SVGTextFragmentWithRange {
  SVGTextFragmentWithRange(const SVGTextFragment& fragment,
                           int start_position,
                           int end_position)
      : fragment(fragment),
        start_position(start_position),
        end_position(end_position) {}
  const SVGTextFragment& fragment;
  int start_position;
  int end_position;
};

class SVGInlineTextBoxPainter {
  STACK_ALLOCATED();

 public:
  SVGInlineTextBoxPainter(const SVGInlineTextBox& svg_inline_text_box)
      : svg_inline_text_box_(svg_inline_text_box) {}
  void Paint(const PaintInfo&, const LayoutPoint&);
  void PaintSelectionBackground(const PaintInfo&);
  void PaintTextMatchMarkerForeground(const PaintInfo&,
                                      const LayoutPoint&,
                                      const TextMatchMarker&,
                                      const ComputedStyle&,
                                      const Font&);
  void PaintTextMatchMarkerBackground(const PaintInfo&,
                                      const LayoutPoint&,
                                      const TextMatchMarker&,
                                      const ComputedStyle&,
                                      const Font&);

 private:
  bool ShouldPaintSelection(const PaintInfo&) const;
  FloatRect BoundsForDrawingRecorder(const PaintInfo&,
                                     const ComputedStyle&,
                                     const LayoutPoint&,
                                     bool include_selection_rect) const;
  void PaintTextFragments(const PaintInfo&, LayoutObject&);
  void PaintDecoration(const PaintInfo&,
                       TextDecoration,
                       const SVGTextFragment&);
  bool SetupTextPaint(const PaintInfo&,
                      const ComputedStyle&,
                      LayoutSVGResourceMode,
                      PaintFlags&);
  void PaintText(const PaintInfo&,
                 TextRun&,
                 const SVGTextFragment&,
                 int start_position,
                 int end_position,
                 const PaintFlags&);
  void PaintText(const PaintInfo&,
                 const ComputedStyle&,
                 const ComputedStyle& selection_style,
                 const SVGTextFragment&,
                 LayoutSVGResourceMode,
                 bool should_paint_selection);
  Vector<SVGTextFragmentWithRange> CollectTextMatches(
      const DocumentMarker&) const;
  Vector<SVGTextFragmentWithRange> CollectFragmentsInRange(
      int start_position,
      int end_position) const;
  LayoutObject& InlineLayoutObject() const;
  LayoutObject& ParentInlineLayoutObject() const;
  LayoutSVGInlineText& InlineText() const;

  const SVGInlineTextBox& svg_inline_text_box_;
};

}  // namespace blink

#endif  // SVGInlineTextBoxPainter_h