third_party/WebKit/Source/core/paint/InlineFlowBoxPainter.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 InlineFlowBoxPainter_h
#define InlineFlowBoxPainter_h

#include "core/style/ShadowData.h"
#include "platform/graphics/GraphicsTypes.h"
#include "platform/text/TextDirection.h"
#include "wtf/Allocator.h"

namespace blink {

class Color;
class FillLayer;
class InlineFlowBox;
class IntRect;
class LayoutPoint;
class LayoutRect;
class LayoutSize;
class LayoutUnit;
struct PaintInfo;
class ComputedStyle;

class InlineFlowBoxPainter {
  STACK_ALLOCATED();

 public:
  InlineFlowBoxPainter(const InlineFlowBox& inlineFlowBox)
      : m_inlineFlowBox(inlineFlowBox) {}
  void paint(const PaintInfo&,
             const LayoutPoint& paintOffset,
             const LayoutUnit lineTop,
             const LayoutUnit lineBottom);

  LayoutRect frameRectClampedToLineTopAndBottomIfNeeded() const;

 private:
  void paintBoxDecorationBackground(const PaintInfo&,
                                    const LayoutPoint& paintOffset,
                                    const LayoutRect& cullRect);
  void paintMask(const PaintInfo&, const LayoutPoint& paintOffset);
  void paintFillLayers(const PaintInfo&,
                       const Color&,
                       const FillLayer&,
                       const LayoutRect&,
                       SkBlendMode op = SkBlendMode::kSrcOver);
  void paintFillLayer(const PaintInfo&,
                      const Color&,
                      const FillLayer&,
                      const LayoutRect&,
                      SkBlendMode op);
  inline bool shouldForceIncludeLogicalEdges() const;
  inline bool includeLogicalLeftEdgeForBoxShadow() const;
  inline bool includeLogicalRightEdgeForBoxShadow() const;
  void paintNormalBoxShadow(const PaintInfo&,
                            const ComputedStyle&,
                            const LayoutRect& paintRect);
  void paintInsetBoxShadow(const PaintInfo&,
                           const ComputedStyle&,
                           const LayoutRect& paintRect);
  LayoutRect paintRectForImageStrip(const LayoutPoint& paintOffset,
                                    const LayoutSize& frameSize,
                                    TextDirection) const;

  enum BorderPaintingType {
    DontPaintBorders,
    PaintBordersWithoutClip,
    PaintBordersWithClip
  };
  BorderPaintingType getBorderPaintType(const LayoutRect& adjustedFrameRect,
                                        IntRect& adjustedClipRect) const;

  const InlineFlowBox& m_inlineFlowBox;
};

}  // namespace blink

#endif  // InlineFlowBoxPainter_h