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
244
245
246
247
248
249
250
251
252
|
/****************************************************************************
**
** 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 "qpickingsettings.h"
#include "qpickingsettings_p.h"
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
/*!
\class Qt3DRender::QPickingSettings
\brief The QPickingSettings class specifies how entity picking is handled.
\since 5.7
\inmodule Qt3DRender
\inherits Qt3DCore::QNode
The picking settings determine how the entity picking is handled. For more details about
entity picking, see QObjectPicker component documentation.
Picking is triggered by mouse events. It will cast a ray through the scene and look for
geometry intersecting the ray.
\sa QObjectPicker, QPickEvent, QPickTriangleEvent
*/
/*!
\qmltype PickingSettings
\brief The PickingSettings class specifies how entity picking is handled.
\since 5.7
\inqmlmodule Qt3D.Render
\instantiates Qt3DRender::QPickingSettings
The picking settings determine how the entity picking is handled. For more details about
entity picking, see Qt3DRender::QObjectPicker component documentation.
Picking is triggered by mouse events. It will cast a ray through the scene and look for
geometry intersecting the ray.
\sa ObjectPicker
*/
QPickingSettingsPrivate::QPickingSettingsPrivate()
: Qt3DCore::QNodePrivate()
, m_pickMethod(QPickingSettings::BoundingVolumePicking)
, m_pickResultMode(QPickingSettings::NearestPick)
, m_faceOrientationPickingMode(QPickingSettings::FrontFace)
{
}
QPickingSettings::QPickingSettings(Qt3DCore::QNode *parent)
: Qt3DCore::QNode(*new QPickingSettingsPrivate, parent)
{
// Block all notifications for this class as it should have been a QObject
blockNotifications(true);
}
/*! \internal */
QPickingSettings::~QPickingSettings()
{
}
/*! \internal */
QPickingSettings::QPickingSettings(QPickingSettingsPrivate &dd, Qt3DCore::QNode *parent)
: Qt3DCore::QNode(dd, parent)
{
}
QPickingSettings::PickMethod QPickingSettings::pickMethod() const
{
Q_D(const QPickingSettings);
return d->m_pickMethod;
}
QPickingSettings::PickResultMode QPickingSettings::pickResultMode() const
{
Q_D(const QPickingSettings);
return d->m_pickResultMode;
}
QPickingSettings::FaceOrientationPickingMode QPickingSettings::faceOrientationPickingMode() const
{
Q_D(const QPickingSettings);
return d->m_faceOrientationPickingMode;
}
/*!
* \enum Qt3DRender::QPickingSettings::PickMethod
*
* Specifies the picking method.
*
* \value BoundingVolumePicking An entity is considered picked if the picking ray intersects
* the bounding volume of the entity (default).
* \value TrianglePicking An entity is considered picked if the picking ray intersects with
* any triangle of the entity's mesh component.
*/
/*!
\qmlproperty enumeration PickingSettings::pickMethod
Holds the current pick method.
\list
\li PickingSettings.BoundingVolumePicking
\li PickingSettings.TrianglePicking
\endlist
\sa Qt3DRender::QPickingSettings::PickMethod
*/
/*!
\property QPickingSettings::pickMethod
Holds the current pick method.
By default, for performance reasons, ray casting will use bounding volume picking.
This may however lead to unexpected results if a small object is englobed
in the bounding sphere of a large object behind it.
Triangle picking will produce exact results but is computationally more expensive.
*/
void QPickingSettings::setPickMethod(QPickingSettings::PickMethod pickMethod)
{
Q_D(QPickingSettings);
if (d->m_pickMethod == pickMethod)
return;
d->m_pickMethod = pickMethod;
emit pickMethodChanged(pickMethod);
}
/*!
* \enum Qt3DRender::QPickingSettings::PickResultMode
*
* Specifies what is included into the picking results.
*
* \value NearestPick Only the nearest entity to picking ray origin intersected by the picking ray
* is picked (default).
* \value AllPicks All entities that intersect the picking ray are picked.
*
* \sa Qt3DRender::QPickEvent
*/
/*!
\qmlproperty enumeration PickingSettings::pickResultMode
Holds the current pick results mode.
\list
\li PickingSettings.NearestPick
\li PickingSettings.AllPicks
\endlist
\sa Qt3DRender::QPickingSettings::PickResultMode
*/
/*!
\property QPickingSettings::pickResultMode
Holds the current pick results mode.
By default, pick results will only be produced for the entity closest to the camera.
When setting the pick method to AllPicks, events will be triggered for all the
entities with a QObjectPicker along the ray.
If a QObjectPicker is assigned to an entity with multiple children, an event will
be triggered for each child entity that intersects the ray.
*/
void QPickingSettings::setPickResultMode(QPickingSettings::PickResultMode pickResultMode)
{
Q_D(QPickingSettings);
if (d->m_pickResultMode == pickResultMode)
return;
d->m_pickResultMode = pickResultMode;
emit pickResultModeChanged(pickResultMode);
}
/*!
\enum Qt3DRender::QPickingSettings::FaceOrientationPickingMode
Specifies how face orientation affects triangle picking
\value FrontFace Only front-facing triangles will be picked (default).
\value BackFace Only back-facing triangles will be picked.
\value FrontAndBackFace Both front- and back-facing triangles will be picked.
*/
/*!
\qmlproperty enumeration PickingSettings::faceOrientationPickingMode
Specifies how face orientation affects triangle picking
\list
\li PickingSettings.FrontFace Only front-facing triangles will be picked (default).
\li PickingSettings.BackFace Only back-facing triangles will be picked.
\li PickingSettings.FrontAndBackFace Both front- and back-facing triangles will be picked.
\endlist
*/
/*!
\property QPickingSettings::faceOrientationPickingMode
Specifies how face orientation affects triangle picking
*/
void QPickingSettings::setFaceOrientationPickingMode(QPickingSettings::FaceOrientationPickingMode faceOrientationPickingMode)
{
Q_D(QPickingSettings);
if (d->m_faceOrientationPickingMode == faceOrientationPickingMode)
return;
d->m_faceOrientationPickingMode = faceOrientationPickingMode;
emit faceOrientationPickingModeChanged(faceOrientationPickingMode);
}
} // namespace Qt3Drender
QT_END_NAMESPACE
|
