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1 /*
2  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
3  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
4  *           (C) 2000 Dirk Mueller (mueller@kde.org)
5  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
6  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
7  * Copyright (C) 2009 Google Inc. All rights reserved.
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Library General Public
11  * License as published by the Free Software Foundation; either
12  * version 2 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * Library General Public License for more details.
18  *
19  * You should have received a copy of the GNU Library General Public License
20  * along with this library; see the file COPYING.LIB.  If not, write to
21  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22  * Boston, MA 02110-1301, USA.
23  *
24  */
25 
26 #ifndef PaintPhase_h
27 #define PaintPhase_h
28 
29 namespace WebCore {
30 
31 /*
32  *  The painting of a layer occurs in three distinct phases.  Each phase involves
33  *  a recursive descent into the layer's render objects. The first phase is the background phase.
34  *  The backgrounds and borders of all blocks are painted.  Inlines are not painted at all.
35  *  Floats must paint above block backgrounds but entirely below inline content that can overlap them.
36  *  In the foreground phase, all inlines are fully painted.  Inline replaced elements will get all
37  *  three phases invoked on them during this phase.
38  */
39 
40 enum PaintPhase {
41     PaintPhaseBlockBackground,
42 #if PLATFORM(ANDROID)
43     // Used for fixed background support in layers
44     PaintPhaseBlockBackgroundDecorations,
45 #endif
46     PaintPhaseChildBlockBackground,
47     PaintPhaseChildBlockBackgrounds,
48     PaintPhaseFloat,
49     PaintPhaseForeground,
50     PaintPhaseOutline,
51     PaintPhaseChildOutlines,
52     PaintPhaseSelfOutline,
53     PaintPhaseSelection,
54     PaintPhaseCollapsedTableBorders,
55     PaintPhaseTextClip,
56     PaintPhaseMask
57 };
58 
59 enum PaintBehaviorFlags {
60     PaintBehaviorNormal = 0,
61     PaintBehaviorSelectionOnly = 1 << 0,
62     PaintBehaviorForceBlackText = 1 << 1,
63     PaintBehaviorFlattenCompositingLayers = 1 << 2
64 };
65 
66 typedef unsigned PaintBehavior;
67 
68 } // namespace WebCore
69 
70 #endif // PaintPhase_h
71