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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/****************************************************************************
**
** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qrendersurfaceselector.h"
#include "qrendersurfaceselector_p.h"
#include <QtGui/qwindow.h>
#include <QtGui/qoffscreensurface.h>
#include <Qt3DCore/qnodepropertychange.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
/*!
* \class Qt3DRender::QRenderSurfaceSelector
* \inmodule Qt3DRender
* \brief QRenderSurfaceSelector
* \since
*
* \inherits Qt3DRender::QFrameGraphNode
*
*/
/*!
* \qmltype RenderSurfaceSelector
* \inqmlmodule Qt3D.Render
* \since
* \ingroup
* \instantiates Qt3DRender::QRenderSurfaceSelector
* \brief RenderSurfaceSelector
*
*/
/*! \qmlproperty QSurface Qt3D.Render::RenderSurfaceSelector::surface
*
* Holds the surface.
*/
/*! \qmlproperty QWindow Qt3D.Render::RenderSurfaceSelector::window
*
* Holds the window.
*/
/*! \qmlproperty QSize Qt3D.Render::RenderSurfaceSelector::externalRenderTargetSize
*
* Holds the size of the external render target.
*/
QRenderSurfaceSelectorPrivate::QRenderSurfaceSelectorPrivate()
: Qt3DRender::QFrameGraphNodePrivate()
, m_surface(nullptr)
, m_surfaceEventFilter(new Qt3DRender::Render::PlatformSurfaceFilter())
{
}
void QRenderSurfaceSelectorPrivate::setExternalRenderTargetSize(const QSize &size)
{
m_externalRenderTargetSize = size;
}
/*!
* Constructs QRenderSurfaceSelector with given \a parent.
*/
QRenderSurfaceSelector::QRenderSurfaceSelector(Qt3DCore::QNode *parent)
: Qt3DRender::QFrameGraphNode(*new QRenderSurfaceSelectorPrivate, parent)
{
}
/*!
* \internal
*/
QRenderSurfaceSelector::QRenderSurfaceSelector(QRenderSurfaceSelectorPrivate &dd, Qt3DCore::QNode *parent)
: Qt3DRender::QFrameGraphNode(dd, parent)
{
}
QObject *QRenderSurfaceSelector::surface() const
{
Q_D(const QRenderSurfaceSelector);
QObject *surfaceObj = nullptr;
if (!d->m_surface)
return surfaceObj;
switch (d->m_surface->surfaceClass()) {
case QSurface::Window:
surfaceObj = static_cast<QWindow *>(d->m_surface);
break;
case QSurface::Offscreen:
surfaceObj = static_cast<QOffscreenSurface *>(d->m_surface);
break;
}
return surfaceObj;
}
/*! \property QRenderSurfaceSelector::surface
*
* Sets \a surface.
*/
void QRenderSurfaceSelector::setSurface(QObject *surfaceObject)
{
Q_D(QRenderSurfaceSelector);
QSurface *surface = nullptr;
if (surfaceObject) {
QWindow *window = qobject_cast<QWindow *>(surfaceObject);
if (window) {
surface = static_cast<QSurface *>(window);
} else {
QOffscreenSurface *offscreen = qobject_cast<QOffscreenSurface *>(surfaceObject);
if (offscreen)
surface = static_cast<QSurface *>(offscreen);
}
Q_ASSERT_X(surface, Q_FUNC_INFO, "surfaceObject is not a valid QSurface * object");
}
if (d->m_surface == surface)
return;
d->m_surface = surface;
// The platform surface filter only deals with QObject
// We assume therefore that our surface is actually a QObject underneath
if (d->m_surface) {
switch (d->m_surface->surfaceClass()) {
case QSurface::Window: {
QWindow *window = static_cast<QWindow *>(d->m_surface);
d->m_surfaceEventFilter->setSurface(window);
if (window) {
QObject::connect(window, &QWindow::widthChanged, [=] (int width) {
if (d->m_changeArbiter != nullptr) {
Qt3DCore::QNodePropertyChangePtr change(
new Qt3DCore::QNodePropertyChange(
Qt3DCore::NodeUpdated,
Qt3DCore::QSceneChange::Node,
id()));
change->setPropertyName("width");
change->setValue(QVariant::fromValue(width));
d->notifyObservers(change);
}
});
QObject::connect(window, &QWindow::heightChanged, [=] (int height) {
if (d->m_changeArbiter != nullptr) {
Qt3DCore::QNodePropertyChangePtr change(
new Qt3DCore::QNodePropertyChange(
Qt3DCore::NodeUpdated,
Qt3DCore::QSceneChange::Node,
id()));
change->setPropertyName("height");
change->setValue(QVariant::fromValue(height));
d->notifyObservers(change);
}
});
}
break;
}
case QSurface::Offscreen: {
d->m_surfaceEventFilter->setSurface(static_cast<QOffscreenSurface *>(d->m_surface));
break;
}
default:
Q_UNREACHABLE();
break;
}
} else {
QWindow *nullWindow = nullptr;
d->m_surfaceEventFilter->setSurface(nullWindow);
}
emit surfaceChanged(surfaceObject);
}
QSize QRenderSurfaceSelector::externalRenderTargetSize() const
{
Q_D(const QRenderSurfaceSelector);
return d->externalRenderTargetSize();
}
/*!
* Sets render target \a size if different than underlying surface size.
* Tells picking the correct size.
*/
void QRenderSurfaceSelector::setExternalRenderTargetSize(const QSize &size)
{
Q_D(QRenderSurfaceSelector);
d->setExternalRenderTargetSize(size);
emit externalRenderTargetSizeChanged(size);
}
Qt3DCore::QNodeCreatedChangeBasePtr QRenderSurfaceSelector::createNodeCreationChange() const
{
auto creationChange = Qt3DCore::QNodeCreatedChangePtr<QRenderSurfaceSelectorData>::create(this);
auto &data = creationChange->data;
Q_D(const QRenderSurfaceSelector);
data.surface = QPointer<QObject>(surface());
data.externalRenderTargetSize = d->m_externalRenderTargetSize;
return creationChange;
}
} // namespace Qt3DRender
QT_END_NAMESPACE
|
