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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKPOINTERSINGLEHANDLER_H
#define QQUICKPOINTERSINGLEHANDLER_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 "qquickpointerdevicehandler_p.h"
QT_BEGIN_NAMESPACE
class Q_QUICK_PRIVATE_EXPORT QQuickPointerSingleHandler : public QQuickPointerDeviceHandler
{
Q_OBJECT
Q_PROPERTY(int pointId READ pointId NOTIFY pointIdChanged)
Q_PROPERTY(QPointingDeviceUniqueId uniquePointId READ uniquePointId NOTIFY pointIdChanged)
Q_PROPERTY(QPointF pos READ pos NOTIFY eventPointHandled)
Q_PROPERTY(QPointF scenePos READ scenePos NOTIFY eventPointHandled)
Q_PROPERTY(QPointF pressPos READ pressPos NOTIFY pressedButtonsChanged)
Q_PROPERTY(QPointF scenePressPos READ scenePressPos NOTIFY pressedButtonsChanged)
Q_PROPERTY(QPointF sceneGrabPos READ sceneGrabPos NOTIFY singlePointGrabChanged)
Q_PROPERTY(Qt::MouseButtons pressedButtons READ pressedButtons NOTIFY pressedButtonsChanged)
Q_PROPERTY(QVector2D velocity READ velocity NOTIFY eventPointHandled)
Q_PROPERTY(qreal rotation READ rotation NOTIFY eventPointHandled)
Q_PROPERTY(qreal pressure READ pressure NOTIFY eventPointHandled)
Q_PROPERTY(QSizeF ellipseDiameters READ ellipseDiameters NOTIFY eventPointHandled)
Q_PROPERTY(Qt::MouseButtons acceptedButtons READ acceptedButtons WRITE setAcceptedButtons NOTIFY acceptedButtonsChanged)
public:
explicit QQuickPointerSingleHandler(QObject *parent = 0);
virtual ~QQuickPointerSingleHandler() { }
int pointId() const { return m_pointId; }
Qt::MouseButtons pressedButtons() const { return m_pressedButtons; }
Qt::MouseButtons acceptedButtons() const { return m_acceptedButtons; }
void setAcceptedButtons(Qt::MouseButtons buttons);
QPointF pressPos() const { return m_pressPos; }
QPointF scenePressPos() const { return m_scenePressPos; }
QPointF sceneGrabPos() const { return m_sceneGrabPos; }
QPointF pos() const { return m_pos; }
QPointF scenePos() const { return parentItem()->mapToScene(m_pos); }
QVector2D velocity() const { return m_velocity; }
qreal rotation() const { return m_rotation; }
qreal pressure() const { return m_pressure; }
QSizeF ellipseDiameters() const { return m_ellipseDiameters; }
QPointingDeviceUniqueId uniquePointId() const { return m_uniquePointId; }
Q_SIGNALS:
void pointIdChanged();
void pressedButtonsChanged();
void acceptedButtonsChanged();
void singlePointGrabChanged(); // QQuickPointerHandler::grabChanged signal can't be a property notifier here
void eventPointHandled();
protected:
bool wantsPointerEvent(QQuickPointerEvent *event) override;
virtual bool wantsEventPoint(QQuickEventPoint *point);
void handlePointerEventImpl(QQuickPointerEvent *event) override;
virtual void handleEventPoint(QQuickEventPoint *point) = 0;
QQuickEventPoint *currentPoint(QQuickPointerEvent *ev) { return ev->pointById(m_pointId); }
void onGrabChanged(QQuickPointerHandler *grabber, QQuickEventPoint::GrabState stateChange, QQuickEventPoint *point) override;
void setIgnoreAdditionalPoints(bool v = true);
void moveTarget(QPointF pos, QQuickEventPoint *point);
private:
void setPressedButtons(Qt::MouseButtons buttons);
void reset();
private:
int m_pointId;
QPointingDeviceUniqueId m_uniquePointId;
Qt::MouseButtons m_pressedButtons;
QPointF m_pos;
QPointF m_pressPos;
QPointF m_scenePressPos;
QPointF m_sceneGrabPos;
QVector2D m_velocity;
qreal m_rotation;
qreal m_pressure;
QSizeF m_ellipseDiameters;
Qt::MouseButtons m_acceptedButtons;
bool m_ignoreAdditionalPoints : 1;
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QQuickPointerSingleHandler)
#endif // QQUICKPOINTERSINGLEHANDLER_H
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