src/third_party/WebKit/Source/core/paint/BlockPainter.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef BlockPainter_h
   6 #define BlockPainter_h
   7
   8 namespace blink {
   9
  10 struct PaintInfo;
  11 class InlineBox;
  12 class LayoutPoint;
  13 class LayoutRect;
  14 class RenderFlexibleBox;
  15 class RenderBlock;
  16 class RenderBox;
  17 class RenderObject;
  18
  19 class BlockPainter {
  20 public:
  21     BlockPainter(RenderBlock& block) : m_renderBlock(block) { }
  22
  23     void paint(PaintInfo&, const LayoutPoint& paintOffset);
  24     void paintObject(PaintInfo&, const LayoutPoint&);
  25     void paintChildren(PaintInfo&, const LayoutPoint&);
  26     void paintChildAsInlineBlock(RenderBox*, PaintInfo&, const LayoutPoint&);
  27     void paintOverflowControlsIfNeeded(PaintInfo&, const LayoutPoint&);
  28
  29     // inline-block elements paint all phases atomically. This function ensures that. Certain other elements
  30     // (grid items, flex items) require this behavior as well, and this function exists as a helper for them.
  31     // It is expected that the caller will call this function independent of the value of paintInfo.phase.
  32     static void paintAsInlineBlock(RenderObject*, PaintInfo&, const LayoutPoint&);
  33     static void paintChildrenOfFlexibleBox(RenderFlexibleBox&, PaintInfo&, const LayoutPoint& paintOffset);
  34     static void paintInlineBox(InlineBox&, PaintInfo&, const LayoutPoint& paintOffset);
  35
  36 private:
  37     LayoutRect overflowRectForPaintRejection() const;
  38     bool hasCaret() const;
  39     void paintCarets(PaintInfo&, const LayoutPoint&);
  40     void paintContents(PaintInfo&, const LayoutPoint&);
  41     void paintColumnContents(PaintInfo&, const LayoutPoint&, bool paintFloats = false);
  42     void paintColumnRules(PaintInfo&, const LayoutPoint&);
  43     void paintChild(RenderBox*, PaintInfo&, const LayoutPoint&);
  44     void paintSelection(PaintInfo&, const LayoutPoint&);
  45     void paintContinuationOutlines(PaintInfo&, const LayoutPoint&);
  46
  47     RenderBlock& m_renderBlock;
  48 };
  49
  50 } // namespace blink
  51
  52 #endif // BlockPainter_h