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35****************************************************************************/
36
37#ifndef QGAMEPADBACKEND_P_H
38#define QGAMEPADBACKEND_P_H
39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists purely as an
45// implementation detail. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49//
50
51#include <QtGamepad/qtgamepadglobal.h>
52
53#include <QtCore/QObject>
54#include <QtGamepad/QGamepadManager>
55
56QT_BEGIN_NAMESPACE
57
58class Q_GAMEPAD_EXPORT QGamepadBackend : public QObject
59{
60 Q_OBJECT
61public:
62 template <typename T>
63 struct AxisInfo {
64 AxisInfo(T minValue = 0, T maxValue = 1, QGamepadManager::GamepadAxis gamepadAxis = QGamepadManager::AxisInvalid)
65 : minValue(minValue)
66 , maxValue(maxValue)
67 , gamepadAxis(gamepadAxis)
68 {}
69
70 virtual double normalized(T value) const
71 {
72 if (gamepadAxis == QGamepadManager::AxisInvalid && minValue >= 0) {
73 //case 0.0 - 1.0
74 return double(value - minValue) / double(maxValue - minValue);
75 } else {
76 //case -1.0 - 1.0
77 return 2.0 * double(value - minValue) / double(maxValue - minValue) - 1.0;
78 }
79 }
80 T minValue;
81 T maxValue;
82 QGamepadManager::GamepadAxis gamepadAxis;
83 };
84
85public:
86 explicit QGamepadBackend(QObject *parent = nullptr);
87 virtual bool isConfigurationNeeded(int deviceId);
88 virtual void resetConfiguration(int deviceId);
89 virtual bool configureButton(int deviceId, QGamepadManager::GamepadButton button);
90 virtual bool configureAxis(int deviceId, QGamepadManager::GamepadAxis axis);
91 virtual bool setCancelConfigureButton(int deviceId, QGamepadManager::GamepadButton button);
92 virtual void setSettingsFile(const QString &file);
93 virtual void saveSettings(int productId, const QVariant &value);
94 virtual QVariant readSettings(int productId);
95
96public Q_SLOTS:
97 virtual bool start();
98 virtual void stop();
99
100Q_SIGNALS:
101 void buttonConfigured(int deviceId, QGamepadManager::GamepadButton button);
102 void axisConfigured(int deviceId, QGamepadManager::GamepadAxis axis);
103 void configurationCanceled(int deviceId);
104 void gamepadAdded(int deviceId);
105 void gamepadNamed(int deviceId, const QString &name);
106 void gamepadRemoved(int deviceId);
107 void gamepadAxisMoved(int deviceId, QGamepadManager::GamepadAxis axis, double value);
108 void gamepadButtonPressed(int deviceId, QGamepadManager::GamepadButton button, double value);
109 void gamepadButtonReleased(int deviceId, QGamepadManager::GamepadButton button);
110
111protected:
112 QString m_settingsFilePath;
113};
114
115QT_END_NAMESPACE
116
117#endif // QGAMEPADBACKEND_P_H
118

source code of qtgamepad/src/gamepad/qgamepadbackend_p.h