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      1 /*
      2  * Copyright (C) 2000 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 2000 Antti Koivisto (koivisto (at) kde.org)
      4  *           (C) 2000 Dirk Mueller (mueller (at) kde.org)
      5  *           (C) 2004 Allan Sandfeld Jensen (kde (at) 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