98 lines
3.2 KiB
C++

/*
Gwenview: an image viewer
Copyright 2019 Steffen Hartleib <steffenhartleib@t-online.de>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Cambridge, MA 02110-1301, USA.
*/
#ifndef TOUCH_H
#define TOUCH_H
#include <lib/gwenviewlib_export.h>
// Qt
#include <QObject>
// KF
// Local
#include "lib/touch/doubletap.h"
#include "lib/touch/oneandtwofingerswipe.h"
#include "lib/touch/tapholdandmoving.h"
#include "lib/touch/twofingerpan.h"
#include "lib/touch/twofingertap.h"
namespace Gwenview
{
struct TouchPrivate;
class GWENVIEWLIB_EXPORT Touch : public QObject
{
Q_OBJECT
public:
Touch(QObject *target);
~Touch() override;
void setZoomParameter(qreal, qreal);
void setRotationThreshold(qreal);
qreal getRotationFromPinchGesture(QGestureEvent *);
qreal getZoomFromPinchGesture(QGestureEvent *);
QPoint positionGesture(QGestureEvent *);
bool checkTwoFingerPanGesture(QGestureEvent *);
bool checkOneAndTwoFingerSwipeGesture(QGestureEvent *);
bool checkTapGesture(QGestureEvent *);
bool checkDoubleTapGesture(QGestureEvent *);
bool checkTwoFingerTapGesture(QGestureEvent *);
bool checkTapHoldAndMovingGesture(QGestureEvent *, QObject *);
bool checkPinchGesture(QGestureEvent *);
void touchToMouseRelease(QPoint, QObject *);
void touchToMouseMove(QPoint, QEvent *, Qt::MouseButton);
void touchToMouseMove(QPoint, QObject *, Qt::MouseButton);
void touchToMouseClick(QPoint, QObject *);
void setPanGestureState(QGestureEvent *event);
Qt::GestureState getLastPanGestureState();
QPointF getLastTapPos();
void setLastTapPos(QPointF);
bool getTapHoldandMovingGestureActive();
void setTapHoldandMovingGestureActive(bool);
Qt::GestureType getTapHoldandMovingGesture();
Qt::GestureType getTwoFingerPanGesture();
Qt::GestureType getOneAndTwoFingerSwipeGesture();
Qt::GestureType getDoubleTapGesture();
Qt::GestureType getTwoFingerTapGesture();
protected:
bool eventFilter(QObject *, QEvent *) override;
Q_SIGNALS:
void PanTriggered(const QPointF &);
void swipeLeftTriggered();
void swipeRightTriggered();
void doubleTapTriggered();
void tapHoldAndMovingTriggered(const QPoint &);
void tapTriggered(const QPoint &);
void pinchGestureStarted(qint64);
void twoFingerTapTriggered();
void pinchZoomTriggered(qreal, const QPoint &, qint64);
void pinchRotateTriggered(qreal);
private:
qreal calculateZoom(qreal, qreal);
void touchToMouseEvent(QPoint, QObject *, QEvent::Type, Qt::MouseButton, Qt::MouseButtons);
bool gestureEvent(QGestureEvent *);
TouchPrivate *const d;
};
} // namespace
#endif /* TOUCH_H */