diff options
Diffstat (limited to 'src/quick/handlers/qquicksinglepointhandler_p.h')
-rw-r--r-- | src/quick/handlers/qquicksinglepointhandler_p.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/quick/handlers/qquicksinglepointhandler_p.h b/src/quick/handlers/qquicksinglepointhandler_p.h new file mode 100644 index 0000000000..386cea253a --- /dev/null +++ b/src/quick/handlers/qquicksinglepointhandler_p.h @@ -0,0 +1,154 @@ +/**************************************************************************** +** +** 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 QQuickSinglePointHandler; + +class Q_QUICK_PRIVATE_EXPORT QQuickHandlerPoint { + Q_GADGET + Q_PROPERTY(int id READ id) + Q_PROPERTY(QPointingDeviceUniqueId uniqueId READ uniqueId) + Q_PROPERTY(QPointF position READ position) + Q_PROPERTY(QPointF scenePosition READ scenePosition) + Q_PROPERTY(QPointF pressPosition READ pressPosition) + Q_PROPERTY(QPointF scenePressPosition READ scenePressPosition) + Q_PROPERTY(QPointF sceneGrabPosition READ sceneGrabPosition) + Q_PROPERTY(Qt::MouseButtons pressedButtons READ pressedButtons) + Q_PROPERTY(QVector2D velocity READ velocity) + Q_PROPERTY(qreal rotation READ rotation) + Q_PROPERTY(qreal pressure READ pressure) + Q_PROPERTY(QSizeF ellipseDiameters READ ellipseDiameters) + +public: + QQuickHandlerPoint(); + + int id() const { return m_id; } + Qt::MouseButtons pressedButtons() const { return m_pressedButtons; } + QPointF pressPosition() const { return m_pressPosition; } + QPointF scenePressPosition() const { return m_scenePressPosition; } + QPointF sceneGrabPosition() const { return m_sceneGrabPosition; } + QPointF position() const { return m_position; } + QPointF scenePosition() const { return m_scenePosition; } + 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 uniqueId() const { return m_uniqueId; } + +private: + void reset(); + int m_id; + QPointingDeviceUniqueId m_uniqueId; + Qt::MouseButtons m_pressedButtons; + QPointF m_position; + QPointF m_scenePosition; + QPointF m_pressPosition; + QPointF m_scenePressPosition; + QPointF m_sceneGrabPosition; + QVector2D m_velocity; + qreal m_rotation; + qreal m_pressure; + QSizeF m_ellipseDiameters; + friend class QQuickSinglePointHandler; +}; + +class Q_QUICK_PRIVATE_EXPORT QQuickSinglePointHandler : public QQuickPointerDeviceHandler +{ + Q_OBJECT + Q_PROPERTY(Qt::MouseButtons acceptedButtons READ acceptedButtons WRITE setAcceptedButtons NOTIFY acceptedButtonsChanged) + Q_PROPERTY(QQuickHandlerPoint point READ point NOTIFY pointChanged) +public: + explicit QQuickSinglePointHandler(QObject *parent = 0); + virtual ~QQuickSinglePointHandler() { } + + Qt::MouseButtons acceptedButtons() const { return m_acceptedButtons; } + void setAcceptedButtons(Qt::MouseButtons buttons); + + QQuickHandlerPoint point() const { return m_pointInfo; } + +Q_SIGNALS: + void pointChanged(); + void singlePointGrabChanged(); // QQuickPointerHandler::grabChanged signal can't be a property notifier here + void acceptedButtonsChanged(); + +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_pointInfo.m_id); } + void onGrabChanged(QQuickPointerHandler *grabber, QQuickEventPoint::GrabState stateChange, QQuickEventPoint *point) override; + + void setIgnoreAdditionalPoints(bool v = true); + + void moveTarget(QPointF pos, QQuickEventPoint *point); + +private: + void reset(); + +private: + QQuickHandlerPoint m_pointInfo; + Qt::MouseButtons m_acceptedButtons; + bool m_ignoreAdditionalPoints : 1; +}; + +QT_END_NAMESPACE + +QML_DECLARE_TYPE(QQuickHandlerPoint) +QML_DECLARE_TYPE(QQuickSinglePointHandler) + +#endif // QQUICKPOINTERSINGLEHANDLER_H |