qgesture.h

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#ifndef QGESTURE_H
#define QGESTURE_H

#include <QtCore/qobject.h>
#include <QtCore/qlist.h>
#include <QtCore/qdatetime.h>
#include <QtCore/qpoint.h>
#include <QtCore/qrect.h>
#include <QtCore/qmetatype.h>

#ifndef QT_NO_GESTURES

QT_BEGIN_HEADER

Q_DECLARE_METATYPE(Qt::GestureState)
Q_DECLARE_METATYPE(Qt::GestureType)

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QGesturePrivate;
class Q_GUI_EXPORT QGesture : public QObject
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QGesture)

    Qt::GestureState state;
    Qt::GestureType gestureType;
    QGesture::GestureCancelPolicy gestureCancelPolicy;
    QPointF hotSpot;
    bool hasHotSpot;

public:
    explicit QGesture(QObject *parent = 0);
    ~QGesture();

    Qt::GestureType gestureType() const;

    Qt::GestureState state() const;

    QPointF hotSpot() const;
    void setHotSpot(const QPointF &value);
    bool hasHotSpot() const;
    void unsetHotSpot();

    enum GestureCancelPolicy {
        CancelNone = 0,
        CancelAllInContext
    };

    void setGestureCancelPolicy(GestureCancelPolicy policy);
    GestureCancelPolicy gestureCancelPolicy() const;

protected:
    QGesture(QGesturePrivate &dd, QObject *parent);

private:
    friend class QGestureEvent;
    friend class QGestureRecognizer;
    friend class QGestureManager;
    friend class QGraphicsScenePrivate;
};

class QPanGesturePrivate;
class Q_GUI_EXPORT QPanGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QPanGesture)

    QPointF lastOffset;
    QPointF offset;
    QPointF delta;
    qreal acceleration;
    Q_PRIVATE_PROPERTY(QPanGesture::d_func(), qreal horizontalVelocity READ horizontalVelocity WRITE setHorizontalVelocity)
    Q_PRIVATE_PROPERTY(QPanGesture::d_func(), qreal verticalVelocity READ verticalVelocity WRITE setVerticalVelocity)

public:
    QPanGesture(QObject *parent = 0);

    QPointF lastOffset() const;
    QPointF offset() const;
    QPointF delta() const;
    qreal acceleration() const;

    void setLastOffset(const QPointF &value);
    void setOffset(const QPointF &value);
    void setAcceleration(qreal value);

    friend class QPanGestureRecognizer;
    friend class QWinNativePanGestureRecognizer;
};

class QPinchGesturePrivate;
class Q_GUI_EXPORT QPinchGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QPinchGesture)
    Q_FLAGS(ChangeFlags ChangeFlag)

public:
    enum ChangeFlag {
        ScaleFactorChanged = 0x1,
        RotationAngleChanged = 0x2,
        CenterPointChanged = 0x4
    };
    Q_DECLARE_FLAGS(ChangeFlags, ChangeFlag)

    ChangeFlags totalChangeFlags;
    ChangeFlags changeFlags;

    qreal totalScaleFactor;
    qreal lastScaleFactor;
    qreal scaleFactor;

    qreal totalRotationAngle;
    qreal lastRotationAngle;
    qreal rotationAngle;

    QPointF startCenterPoint;
    QPointF lastCenterPoint;
    QPointF centerPoint;

public:
    QPinchGesture(QObject *parent = 0);

    ChangeFlags totalChangeFlags() const;
    void setTotalChangeFlags(ChangeFlags value);

    ChangeFlags changeFlags() const;
    void setChangeFlags(ChangeFlags value);

    QPointF startCenterPoint() const;
    QPointF lastCenterPoint() const;
    QPointF centerPoint() const;
    void setStartCenterPoint(const QPointF &value);
    void setLastCenterPoint(const QPointF &value);
    void setCenterPoint(const QPointF &value);

    qreal totalScaleFactor() const;
    qreal lastScaleFactor() const;
    qreal scaleFactor() const;
    void setTotalScaleFactor(qreal value);
    void setLastScaleFactor(qreal value);
    void setScaleFactor(qreal value);

    qreal totalRotationAngle() const;
    qreal lastRotationAngle() const;
    qreal rotationAngle() const;
    void setTotalRotationAngle(qreal value);
    void setLastRotationAngle(qreal value);
    void setRotationAngle(qreal value);

    friend class QPinchGestureRecognizer;
};

Q_DECLARE_OPERATORS_FOR_FLAGS(QPinchGesture::ChangeFlags)

QT_END_NAMESPACE

Q_DECLARE_METATYPE(QPinchGesture::ChangeFlags)

QT_BEGIN_NAMESPACE

class QSwipeGesturePrivate;
class Q_GUI_EXPORT QSwipeGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QSwipeGesture)
    Q_ENUMS(SwipeDirection)

    SwipeDirection horizontalDirection;
    SwipeDirection verticalDirection;
    qreal swipeAngle;
    Q_PRIVATE_PROPERTY(QSwipeGesture::d_func(), qreal velocity READ velocity WRITE setVelocity)

public:
    enum SwipeDirection { NoDirection, Left, Right, Up, Down };
    QSwipeGesture(QObject *parent = 0);

    SwipeDirection horizontalDirection() const;
    SwipeDirection verticalDirection() const;

    qreal swipeAngle() const;
    void setSwipeAngle(qreal value);

    friend class QSwipeGestureRecognizer;
};

class QTapGesturePrivate;
class Q_GUI_EXPORT QTapGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QTapGesture)

    QPointF position;

public:
    QTapGesture(QObject *parent = 0);

    QPointF position() const;
    void setPosition(const QPointF &pos);

    friend class QTapGestureRecognizer;
};

class QTapAndHoldGesturePrivate;
class Q_GUI_EXPORT QTapAndHoldGesture : public QGesture
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QTapAndHoldGesture)

    QPointF position;

public:
    QTapAndHoldGesture(QObject *parent = 0);

    QPointF position() const;
    void setPosition(const QPointF &pos);

    static void setTimeout(int msecs);
    static int timeout();

    friend class QTapAndHoldGestureRecognizer;
};

QT_END_NAMESPACE

Q_DECLARE_METATYPE(QGesture::GestureCancelPolicy)
QT_END_HEADER

#endif // QT_NO_GESTURES

#endif // QGESTURE_H