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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#ifndef QDECLARATIVEPINCHGENERATOR_H
#define QDECLARATIVEPINCHGENERATOR_H
#include <QtQuick/QQuickItem>
#include <QtQuick/QQuickWindow>
#include <QtGui/QMouseEvent>
#include <QtGui/QTouchEvent>
#include <QtGui/QKeyEvent>
#include <QtGui/QPointingDevice>
#include <QtCore/QElapsedTimer>
#include <QtCore/QList>
#include <QtCore/QPoint>
#include <QDebug>
#define SWIPES_REQUIRED 2
QT_BEGIN_NAMESPACE
typedef struct {
QList<QPoint> touchPoints;
QList<int> durations;
} Swipe;
class QDeclarativePinchGenerator : public QQuickItem
{
Q_OBJECT
Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
Q_PROPERTY(QString state READ state NOTIFY stateChanged)
Q_PROPERTY(qreal replaySpeedFactor READ replaySpeedFactor WRITE setReplaySpeedFactor NOTIFY replaySpeedFactorChanged)
Q_PROPERTY(QQuickItem* target READ target WRITE setTarget NOTIFY targetChanged)
Q_INTERFACES(QQmlParserStatus)
public:
QDeclarativePinchGenerator();
~QDeclarativePinchGenerator();
QString state() const;
QQuickItem* target() const;
void setTarget(QQuickItem* target);
qreal replaySpeedFactor() const;
void setReplaySpeedFactor(qreal factor);
bool enabled() const;
void setEnabled(bool enabled);
Q_INVOKABLE void replay();
Q_INVOKABLE void clear();
Q_INVOKABLE void stop();
Q_INVOKABLE int startDragDistance();
// programmatic interface, useful for autotests
Q_INVOKABLE void pinch(QPoint point1From,
QPoint point1To,
QPoint point2From,
QPoint point2To,
int interval1 = 20,
int interval2 = 20,
int samples1 = 10,
int samples2 = 10);
Q_INVOKABLE void pinchPress(QPoint point1From, QPoint point2From);
Q_INVOKABLE void pinchMoveTo(QPoint point1To, QPoint point2To);
Q_INVOKABLE void pinchRelease(QPoint point1To, QPoint point2To);
signals:
void stateChanged();
void targetChanged();
void replaySpeedFactorChanged();
void enabledChanged();
public:
enum GeneratorState {
Invalid = 0,
Idle = 1,
Recording = 2,
Replaying = 3
};
// from QQmlParserStatus
void componentComplete() override;
// from QQuickItem
void itemChange(ItemChange change, const ItemChangeData &data) override;
protected:
void mousePressEvent(QMouseEvent *event) override;
void mouseReleaseEvent(QMouseEvent *event) override;
void mouseDoubleClickEvent(QMouseEvent *event) override;
void mouseMoveEvent(QMouseEvent *event) override;
void keyPressEvent(QKeyEvent *event) override;
void timerEvent(QTimerEvent *event) override;
private:
void setState(GeneratorState state);
private:
QQuickItem* target_;
GeneratorState state_;
QQuickWindow* window_;
QList<Swipe*> swipes_;
Swipe* activeSwipe_;
QElapsedTimer swipeTimer_;
int replayTimer_;
int replayBookmark_;
int masterSwipe_;
qreal replaySpeedFactor_;
bool enabled_;
QPointingDevice *device_;
};
QT_END_NAMESPACE
#endif
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