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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Gamepad module
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGAMEPADBACKEND_H
#define QGAMEPADBACKEND_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGamepad/qtgamepadglobal.h>
#include <QtCore/QObject>
#include <QtGamepad/QGamepadManager>
QT_BEGIN_NAMESPACE
class Q_GAMEPAD_EXPORT QGamepadBackend : public QObject
{
Q_OBJECT
public:
template <typename T>
struct AxisInfo {
AxisInfo(T minValue = 0, T maxValue = 1, QGamepadManager::GamepadAxis gamepadAxis = QGamepadManager::AxisInvalid)
: minValue(minValue)
, maxValue(maxValue)
, gamepadAxis(gamepadAxis)
{}
virtual double normalized(T value) const
{
if (gamepadAxis == QGamepadManager::AxisInvalid && minValue >= 0) {
//case 0.0 - 1.0
return double(value - minValue) / double(maxValue - minValue);
} else {
//case -1.0 - 1.0
return 2.0 * double(value - minValue) / double(maxValue - minValue) - 1.0;
}
}
T minValue;
T maxValue;
QGamepadManager::GamepadAxis gamepadAxis;
};
public:
explicit QGamepadBackend(QObject *parent = 0);
virtual bool isConfigurationNeeded(int deviceId);
virtual void resetConfiguration(int deviceId);
virtual bool configureButton(int deviceId, QGamepadManager::GamepadButton button);
virtual bool configureAxis(int deviceId, QGamepadManager::GamepadAxis axis);
virtual bool setCancelConfigureButton(int deviceId, QGamepadManager::GamepadButton button);
virtual void setSettingsFile(const QString &file);
virtual void saveSettings(int productId, const QVariant &value);
virtual QVariant readSettings(int productId);
public slots:
virtual bool start();
virtual void stop();
signals:
void buttonConfigured(int deviceId, QGamepadManager::GamepadButton button);
void axisConfigured(int deviceId, QGamepadManager::GamepadAxis axis);
void configurationCanceled(int deviceId);
void gamepadAdded(int deviceId);
void gamepadRemoved(int deviceId);
void gamepadAxisMoved(int deviceId, QGamepadManager::GamepadAxis axis, double value);
void gamepadButtonPressed(int deviceId, QGamepadManager::GamepadButton button, double value);
void gamepadButtonReleased(int deviceId, QGamepadManager::GamepadButton button);
protected:
QString m_settingsFilePath;
};
QT_END_NAMESPACE
#endif // QGAMEPADBACKEND_H
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