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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
*
* 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 program 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 program; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "QtWebPageSGNode.h"
#include <QtGui/QPolygonF>
#include <QtQuick/QQuickItem>
#include <QtQuick/QQuickWindow>
#include <QtQuick/QSGSimpleRectNode>
#include <WebCore/CoordinatedGraphicsScene.h>
#include <WebCore/TransformationMatrix.h>
#include <private/qsgrendernode_p.h>
using namespace WebCore;
namespace WebKit {
class ContentsSGNode : public QSGRenderNode {
public:
ContentsSGNode(PassRefPtr<CoordinatedGraphicsScene> scene)
: m_scene(scene)
{
coordinatedGraphicsScene()->setActive(true);
}
virtual StateFlags changedStates()
{
return StateFlags(StencilState) | ColorState | BlendState;
}
virtual void render(const RenderState& state)
{
TransformationMatrix renderMatrix;
if (pageNode()->devicePixelRatio() != 1.0) {
renderMatrix.scale(pageNode()->devicePixelRatio());
if (matrix())
renderMatrix.multiply(*matrix());
} else if (matrix())
renderMatrix = *matrix();
// When rendering to an intermediate surface, Qt will
// mirror the projection matrix to fit on the destination coordinate system.
const QMatrix4x4* projection = state.projectionMatrix;
bool mirrored = projection && (*projection)(0, 0) * (*projection)(1, 1) - (*projection)(0, 1) * (*projection)(1, 0) > 0;
// FIXME: Support non-rectangular clippings.
coordinatedGraphicsScene()->paintToCurrentGLContext(renderMatrix, inheritedOpacity(), clipRect(), mirrored ? TextureMapper::PaintingMirrored : 0);
}
~ContentsSGNode()
{
coordinatedGraphicsScene()->purgeGLResources();
}
const QtWebPageSGNode* pageNode() const
{
const QtWebPageSGNode* parent = static_cast<QtWebPageSGNode*>(this->parent());
ASSERT(parent);
return parent;
}
WebCore::CoordinatedGraphicsScene* coordinatedGraphicsScene() const { return m_scene.get(); }
private:
QRectF clipRect() const
{
// Start with an invalid rect.
QRectF resultRect(0, 0, -1, -1);
for (const QSGClipNode* clip = clipList(); clip; clip = clip->clipList()) {
QMatrix4x4 clipMatrix;
if (pageNode()->devicePixelRatio() != 1.0) {
clipMatrix.scale(pageNode()->devicePixelRatio());
if (clip->matrix())
clipMatrix *= (*clip->matrix());
} else if (clip->matrix())
clipMatrix = *clip->matrix();
QRectF currentClip;
if (clip->isRectangular())
currentClip = clipMatrix.mapRect(clip->clipRect());
else {
const QSGGeometry* geometry = clip->geometry();
// Assume here that clipNode has only coordinate data.
const QSGGeometry::Point2D* geometryPoints = geometry->vertexDataAsPoint2D();
// Clip region should be at least triangle to make valid clip.
if (geometry->vertexCount() < 3)
continue;
QPolygonF polygon;
for (int i = 0; i < geometry->vertexCount(); i++)
polygon.append(clipMatrix.map(QPointF(geometryPoints[i].x, geometryPoints[i].y)));
currentClip = polygon.boundingRect();
}
if (currentClip.isEmpty())
continue;
if (resultRect.isValid())
resultRect &= currentClip;
else
resultRect = currentClip;
}
return resultRect;
}
RefPtr<WebCore::CoordinatedGraphicsScene> m_scene;
};
QtWebPageSGNode::QtWebPageSGNode()
: m_contentsNode(0)
, m_backgroundNode(new QSGSimpleRectNode)
, m_devicePixelRatio(1)
{
appendChildNode(m_backgroundNode);
}
void QtWebPageSGNode::setBackground(const QRectF& rect, const QColor& color)
{
m_backgroundNode->setRect(rect);
m_backgroundNode->setColor(color);
}
void QtWebPageSGNode::setScale(float scale)
{
QMatrix4x4 matrix;
matrix.scale(scale);
setMatrix(matrix);
}
void QtWebPageSGNode::setCoordinatedGraphicsScene(PassRefPtr<WebCore::CoordinatedGraphicsScene> scene)
{
if (m_contentsNode && m_contentsNode->coordinatedGraphicsScene() == scene)
return;
delete m_contentsNode;
m_contentsNode = new ContentsSGNode(scene);
// This sets the parent node of the content to QtWebPageSGNode.
appendChildNode(m_contentsNode);
}
} // namespace WebKit
|
