blob: 7d3f297921c369f2589c1a6bbdcfebd374a4c28f (
plain)
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
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQuick 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef GRAVITYAFFECTOR_H
#define GRAVITYAFFECTOR_H
#include "qquickparticleaffector_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class QQuickGravityAffector : public QQuickParticleAffector
{
Q_OBJECT
Q_PROPERTY(qreal magnitude READ magnitude WRITE setMagnitude NOTIFY magnitudeChanged)
Q_PROPERTY(qreal acceleration READ magnitude WRITE setAcceleration NOTIFY magnitudeChanged)
Q_PROPERTY(qreal angle READ angle WRITE setAngle NOTIFY angleChanged)
public:
explicit QQuickGravityAffector(QQuickItem *parent = 0);
qreal magnitude() const
{
return m_magnitude;
}
qreal angle() const
{
return m_angle;
}
protected:
virtual bool affectParticle(QQuickParticleData *d, qreal dt);
signals:
void magnitudeChanged(qreal arg);
void angleChanged(qreal arg);
public slots:
void setAcceleration(qreal arg)
{
qWarning() << "Gravity::acceleration has been renamed Gravity::magnitude";
if (m_magnitude != arg) {
m_magnitude = arg;
m_needRecalc = true;
emit magnitudeChanged(arg);
}
}
void setMagnitude(qreal arg)
{
if (m_magnitude != arg) {
m_magnitude = arg;
m_needRecalc = true;
emit magnitudeChanged(arg);
}
}
void setAngle(qreal arg)
{
if (m_angle != arg) {
m_angle = arg;
m_needRecalc = true;
emit angleChanged(arg);
}
}
private:
qreal m_magnitude;
qreal m_angle;
bool m_needRecalc;
qreal m_dx;
qreal m_dy;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // GRAVITYAFFECTOR_H
|