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| 1 /* | 1 /* |
| 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) |
| 3 * (C) 2000 Antti Koivisto (koivisto@kde.org) | 3 * (C) 2000 Antti Koivisto (koivisto@kde.org) |
| 4 * (C) 2000 Dirk Mueller (mueller@kde.org) | 4 * (C) 2000 Dirk Mueller (mueller@kde.org) |
| 5 * (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com) | 5 * (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com) |
| 6 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights
reserved. | 6 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights
reserved. |
| 7 * Copyright (C) 2009 Google Inc. All rights reserved. | 7 * Copyright (C) 2009 Google Inc. All rights reserved. |
| 8 * | 8 * |
| 9 * This library is free software; you can redistribute it and/or | 9 * This library is free software; you can redistribute it and/or |
| 10 * modify it under the terms of the GNU Library General Public | 10 * modify it under the terms of the GNU Library General Public |
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| 29 namespace blink { | 29 namespace blink { |
| 30 | 30 |
| 31 // The painting of a layer occurs in 4 phases, Each involves a recursive descen
t | 31 // The painting of a layer occurs in 4 phases, Each involves a recursive descen
t |
| 32 // into the layer's layout objects in painting order: | 32 // into the layer's layout objects in painting order: |
| 33 // 1. Background phase: backgrounds and borders of all blocks are painted. | 33 // 1. Background phase: backgrounds and borders of all blocks are painted. |
| 34 // Inlines are not painted at all. | 34 // Inlines are not painted at all. |
| 35 // 2. Float phase: floating objects are painted above block backgrounds but ent
irely | 35 // 2. Float phase: floating objects are painted above block backgrounds but ent
irely |
| 36 // below inline content that can overlap them. | 36 // below inline content that can overlap them. |
| 37 // 3. Foreground phase: all inlines are fully painted. Atomic inline elements w
ill | 37 // 3. Foreground phase: all inlines are fully painted. Atomic inline elements w
ill |
| 38 // get all 4 phases invoked on them during this phase, as if they were stack
ing | 38 // get all 4 phases invoked on them during this phase, as if they were stack
ing |
| 39 // contexts (see ObjectPainter::paintAsPseudoStackingContext()). | 39 // contexts (see ObjectPainter::paintAllPhasesAtomically()). |
| 40 // 4. Outline phase: outlines are painted over the foreground. | 40 // 4. Outline phase: outlines are painted over the foreground. |
| 41 | 41 |
| 42 enum PaintPhase { | 42 enum PaintPhase { |
| 43 // Background phase | 43 // Background phase |
| 44 // | 44 // |
| 45 // Paint background of the current object and non-self-painting descendants. | 45 // Paint background of the current object and non-self-painting descendants. |
| 46 PaintPhaseBlockBackground = 0, | 46 PaintPhaseBlockBackground = 0, |
| 47 // | 47 // |
| 48 // The following two values are added besides the normal PaintPhaseBlockBack
ground | 48 // The following two values are added besides the normal PaintPhaseBlockBack
ground |
| 49 // to distinguish backgrounds for the object itself and for descendants, bec
ause | 49 // to distinguish backgrounds for the object itself and for descendants, bec
ause |
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| 123 // instance by not painting shadows and selections on text, and add | 123 // instance by not painting shadows and selections on text, and add |
| 124 // URL metadata for links. | 124 // URL metadata for links. |
| 125 GlobalPaintPrinting = 1 << 2 | 125 GlobalPaintPrinting = 1 << 2 |
| 126 }; | 126 }; |
| 127 | 127 |
| 128 typedef unsigned GlobalPaintFlags; | 128 typedef unsigned GlobalPaintFlags; |
| 129 | 129 |
| 130 } // namespace blink | 130 } // namespace blink |
| 131 | 131 |
| 132 #endif // PaintPhase_h | 132 #endif // PaintPhase_h |
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