1/****************************************************************************
2**
3** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt3D module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QT3DINPUT_INPUT_MOUSEDEVICE_H
41#define QT3DINPUT_INPUT_MOUSEDEVICE_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of other Qt classes. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <Qt3DInput/QMouseEvent>
55
56#include <Qt3DInput/private/qabstractphysicaldevicebackendnode_p.h>
57
58QT_BEGIN_NAMESPACE
59
60namespace Qt3DInput {
61
62class QInputAspect;
63
64namespace Input {
65
66class InputHandler;
67
68class Q_AUTOTEST_EXPORT MouseDevice : public Qt3DInput::QAbstractPhysicalDeviceBackendNode
69{
70public:
71 struct MouseState {
72
73 MouseState()
74 : xAxis(0.0f)
75 , yAxis(0.0f)
76 , wXAxis(0.0f)
77 , wYAxis(0.0f)
78 , leftPressed(false)
79 , rightPressed(false)
80 , centerPressed(false)
81 {}
82
83 float xAxis;
84 float yAxis;
85 float wXAxis;
86 float wYAxis;
87 bool leftPressed;
88 bool rightPressed;
89 bool centerPressed;
90 };
91
92 MouseDevice();
93 ~MouseDevice();
94
95 void setInputHandler(InputHandler *handler);
96 InputHandler *inputHandler() const;
97
98 float axisValue(int axisIdentifier) const override;
99 bool isButtonPressed(int buttonIdentifier) const override;
100
101 void updateMouseEvents(const QList<QT_PREPEND_NAMESPACE(QMouseEvent)> &events);
102#if QT_CONFIG(wheelevent)
103 void updateWheelEvents(const QList<QT_PREPEND_NAMESPACE(QWheelEvent)> &events);
104#endif
105
106 MouseState mouseState() const;
107 QPointF previousPos() const;
108 bool wasPressed() const;
109 float sensitivity() const;
110 bool updateAxesContinuously() const;
111
112 void syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) override;
113
114private:
115 InputHandler *m_inputHandler;
116
117 MouseState m_mouseState;
118 QPointF m_previousPos;
119 bool m_wasPressed;
120 float m_sensitivity;
121 bool m_updateAxesContinuously;
122};
123
124class MouseDeviceFunctor : public Qt3DCore::QBackendNodeMapper
125{
126public:
127 explicit MouseDeviceFunctor(Qt3DInput::QInputAspect *inputAspect, InputHandler *handler);
128
129 Qt3DCore::QBackendNode *create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const override;
130 Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const override;
131 void destroy(Qt3DCore::QNodeId id) const override;
132
133private:
134 QInputAspect *m_inputAspect;
135 InputHandler *m_handler;
136};
137
138} // namespace Input
139} // namespace Qt3DInput
140
141QT_END_NAMESPACE
142
143#endif // MOUSEDEVICE_H
144

source code of qt3d/src/input/backend/mousedevice_p.h