1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef PaintInfo_h
#define PaintInfo_h
#include "AffineTransform.h"
#include "GraphicsContext.h"
#include "IntRect.h"
#include "LayoutRect.h"
#include "PaintPhase.h"
#include <limits>
#include <wtf/HashMap.h>
#include <wtf/ListHashSet.h>
namespace WebCore {
class OverlapTestRequestClient;
class RenderInline;
class RenderLayerModelObject;
class RenderObject;
typedef HashMap<OverlapTestRequestClient*, IntRect> OverlapTestRequestMap;
/*
* Paint the object and its children, clipped by (x|y|w|h).
* (tx|ty) is the calculated position of the parent
*/
struct PaintInfo {
PaintInfo(GraphicsContext& newContext, const LayoutRect& newRect, PaintPhase newPhase, PaintBehavior newPaintBehavior,
RenderObject* newSubtreePaintRoot = nullptr, ListHashSet<RenderInline*>* newOutlineObjects = nullptr,
OverlapTestRequestMap* overlapTestRequests = nullptr, const RenderLayerModelObject* newPaintContainer = nullptr)
: rect(newRect)
, phase(newPhase)
, paintBehavior(newPaintBehavior)
, subtreePaintRoot(newSubtreePaintRoot)
, outlineObjects(newOutlineObjects)
, overlapTestRequests(overlapTestRequests)
, paintContainer(newPaintContainer)
, m_context(&newContext)
{
}
GraphicsContext& context() const
{
ASSERT(m_context);
return *m_context;
}
void setContext(GraphicsContext& context)
{
m_context = &context;
}
void updateSubtreePaintRootForChildren(const RenderObject* renderer)
{
if (!subtreePaintRoot)
return;
// If we're the painting root, kids draw normally, and see root of nullptr.
if (subtreePaintRoot == renderer) {
subtreePaintRoot = nullptr;
return;
}
}
bool shouldPaintWithinRoot(const RenderObject& renderer) const
{
return !subtreePaintRoot || subtreePaintRoot == &renderer;
}
bool forceTextColor() const { return forceBlackText() || forceWhiteText(); }
bool forceBlackText() const { return paintBehavior & PaintBehaviorForceBlackText; }
bool forceWhiteText() const { return paintBehavior & PaintBehaviorForceWhiteText; }
Color forcedTextColor() const { return (forceBlackText()) ? Color::black : Color::white; }
bool skipRootBackground() const { return paintBehavior & PaintBehaviorSkipRootBackground; }
bool paintRootBackgroundOnly() const { return paintBehavior & PaintBehaviorRootBackgroundOnly; }
void applyTransform(const AffineTransform& localToAncestorTransform)
{
if (localToAncestorTransform.isIdentity())
return;
context().concatCTM(localToAncestorTransform);
if (rect.isInfinite())
return;
FloatRect tranformedRect(localToAncestorTransform.inverse().valueOr(AffineTransform()).mapRect(rect));
rect.setLocation(LayoutPoint(tranformedRect.location()));
rect.setSize(LayoutSize(tranformedRect.size()));
}
LayoutRect rect;
PaintPhase phase;
PaintBehavior paintBehavior;
RenderObject* subtreePaintRoot; // used to draw just one element and its visual children
ListHashSet<RenderInline*>* outlineObjects; // used to list outlines that should be painted by a block with inline children
OverlapTestRequestMap* overlapTestRequests;
const RenderLayerModelObject* paintContainer; // the layer object that originates the current painting
private:
GraphicsContext* m_context;
};
} // namespace WebCore
#endif // PaintInfo_h
|
