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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtDeclarative module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QQUICKMULTIPOINTTOUCHAREA_H
-#define QQUICKMULTIPOINTTOUCHAREA_H
-
-#include "qquickitem.h"
-#include "qevent.h"
-
-#include <QMap>
-#include <QList>
-#include <QtGui/qguiapplication.h>
-#include <QtGui/qstylehints.h>
-
-QT_BEGIN_HEADER
-
-QT_BEGIN_NAMESPACE
-
-QT_MODULE(Declarative)
-
-class QQuickMultiPointTouchArea;
-class Q_AUTOTEST_EXPORT QQuickTouchPoint : public QObject
-{
- Q_OBJECT
- Q_PROPERTY(bool valid READ isValid NOTIFY validityChanged)
- Q_PROPERTY(int pointId READ pointId NOTIFY pointIdChanged)
- Q_PROPERTY(qreal x READ x NOTIFY xChanged)
- Q_PROPERTY(qreal y READ y NOTIFY yChanged)
- Q_PROPERTY(qreal pressure READ pressure NOTIFY pressureChanged)
- Q_PROPERTY(QRectF area READ area NOTIFY areaChanged)
-
- Q_PROPERTY(qreal startX READ startX NOTIFY startXChanged)
- Q_PROPERTY(qreal startY READ startY NOTIFY startYChanged)
- Q_PROPERTY(qreal previousX READ previousX NOTIFY previousXChanged)
- Q_PROPERTY(qreal previousY READ previousY NOTIFY previousYChanged)
- Q_PROPERTY(qreal sceneX READ sceneX NOTIFY sceneXChanged)
- Q_PROPERTY(qreal sceneY READ sceneY NOTIFY sceneYChanged)
-
-public:
- QQuickTouchPoint(bool qmlDefined = true)
- : _id(0),
- _x(0.0), _y(0.0),
- _pressure(0.0),
- _qmlDefined(qmlDefined),
- _valid(!qmlDefined),
- _previousX(0.0), _previousY(0.0),
- _sceneX(0.0), _sceneY(0.0)
- {}
-
- int pointId() const { return _id; }
- void setPointId(int id);
-
- qreal x() const { return _x; }
- void setX(qreal x);
-
- qreal y() const { return _y; }
- void setY(qreal y);
-
- qreal pressure() const { return _pressure; }
- void setPressure(qreal pressure);
-
- QRectF area() const { return _area; }
- void setArea(const QRectF &area);
-
- bool isQmlDefined() { return _qmlDefined; }
-
- bool isValid() { return _valid; }
- void setValid(bool valid);
-
- qreal startX() const { return _startX; }
- void setStartX(qreal startX);
-
- qreal startY() const { return _startY; }
- void setStartY(qreal startY);
-
- qreal previousX() const { return _previousX; }
- void setPreviousX(qreal previousX);
-
- qreal previousY() const { return _previousY; }
- void setPreviousY(qreal previousY);
-
- qreal sceneX() const { return _sceneX; }
- void setSceneX(qreal sceneX);
-
- qreal sceneY() const { return _sceneY; }
- void setSceneY(qreal sceneY);
-
-
-Q_SIGNALS:
- void pointIdChanged();
- void xChanged();
- void yChanged();
- void pressureChanged();
- void areaChanged();
- void validityChanged();
- void startXChanged();
- void startYChanged();
- void previousXChanged();
- void previousYChanged();
- void sceneXChanged();
- void sceneYChanged();
-
-private:
- friend class QQuickMultiPointTouchArea;
- int _id;
- qreal _x;
- qreal _y;
- qreal _pressure;
- QRectF _area;
- bool _qmlDefined;
- bool _valid;
- qreal _startX;
- qreal _startY;
- qreal _previousX;
- qreal _previousY;
- qreal _sceneX;
- qreal _sceneY;
-};
-
-class QQuickGrabGestureEvent : public QObject
-{
- Q_OBJECT
- Q_PROPERTY(QDeclarativeListProperty<QObject> touchPoints READ touchPoints)
- Q_PROPERTY(qreal dragThreshold READ dragThreshold)
-public:
- QQuickGrabGestureEvent() : _grab(false), _dragThreshold(qApp->styleHints()->startDragDistance()) {}
-
- Q_INVOKABLE void grab() { _grab = true; }
- bool wantsGrab() const { return _grab; }
-
- QDeclarativeListProperty<QObject> touchPoints() {
- return QDeclarativeListProperty<QObject>(this, _touchPoints);
- }
- qreal dragThreshold() const { return _dragThreshold; }
-
-private:
- friend class QQuickMultiPointTouchArea;
- bool _grab;
- qreal _dragThreshold;
- QList<QObject*> _touchPoints;
-};
-
-class Q_AUTOTEST_EXPORT QQuickMultiPointTouchArea : public QQuickItem
-{
- Q_OBJECT
-
- Q_PROPERTY(QDeclarativeListProperty<QQuickTouchPoint> touchPoints READ touchPoints)
- Q_PROPERTY(int minimumTouchPoints READ minimumTouchPoints WRITE setMinimumTouchPoints NOTIFY minimumTouchPointsChanged)
- Q_PROPERTY(int maximumTouchPoints READ maximumTouchPoints WRITE setMaximumTouchPoints NOTIFY maximumTouchPointsChanged)
-
-public:
- QQuickMultiPointTouchArea(QQuickItem *parent=0);
- ~QQuickMultiPointTouchArea();
-
- int minimumTouchPoints() const;
- void setMinimumTouchPoints(int num);
- int maximumTouchPoints() const;
- void setMaximumTouchPoints(int num);
-
- QDeclarativeListProperty<QQuickTouchPoint> touchPoints() {
- return QDeclarativeListProperty<QQuickTouchPoint>(this, 0, QQuickMultiPointTouchArea::touchPoint_append, QQuickMultiPointTouchArea::touchPoint_count, QQuickMultiPointTouchArea::touchPoint_at, 0);
- }
-
- static void touchPoint_append(QDeclarativeListProperty<QQuickTouchPoint> *list, QQuickTouchPoint* touch) {
- QQuickMultiPointTouchArea *q = static_cast<QQuickMultiPointTouchArea*>(list->object);
- q->addTouchPrototype(touch);
- }
-
- static int touchPoint_count(QDeclarativeListProperty<QQuickTouchPoint> *list) {
- QQuickMultiPointTouchArea *q = static_cast<QQuickMultiPointTouchArea*>(list->object);
- return q->_touchPrototypes.count();
- }
-
- static QQuickTouchPoint* touchPoint_at(QDeclarativeListProperty<QQuickTouchPoint> *list, int index) {
- QQuickMultiPointTouchArea *q = static_cast<QQuickMultiPointTouchArea*>(list->object);
- return q->_touchPrototypes[index];
- }
-
-Q_SIGNALS:
- void touchPointsPressed(const QList<QObject*> &touchPoints);
- void touchPointsUpdated(const QList<QObject*> &touchPoints);
- void touchPointsReleased(const QList<QObject*> &touchPoints);
- void touchPointsCanceled(const QList<QObject*> &touchPoints);
- void gestureStarted(QQuickGrabGestureEvent *gesture);
- void touchUpdated(const QList<QObject*> &touchPoints);
- void minimumTouchPointsChanged();
- void maximumTouchPointsChanged();
-
-protected:
- void touchEvent(QTouchEvent *);
- bool childMouseEventFilter(QQuickItem *i, QEvent *event);
- void mousePressEvent(QMouseEvent *event);
- void mouseReleaseEvent(QMouseEvent *event);
- void mouseMoveEvent(QMouseEvent *event);
- void mouseUngrabEvent();
- void touchUngrabEvent();
-
- void addTouchPrototype(QQuickTouchPoint* prototype);
- void addTouchPoint(const QTouchEvent::TouchPoint *p);
- void clearTouchLists();
-
- void updateTouchPoint(QQuickTouchPoint*, const QTouchEvent::TouchPoint*);
- void updateTouchData(QEvent*);
-
- bool sendMouseEvent(QMouseEvent *event);
- bool shouldFilter(QEvent *event);
- void grabGesture();
-
-private:
- void ungrab();
- QMap<int,QQuickTouchPoint*> _touchPrototypes; //TouchPoints defined in QML
- QMap<int,QObject*> _touchPoints; //All current touch points
- QList<QObject*> _releasedTouchPoints;
- QList<QObject*> _pressedTouchPoints;
- QList<QObject*> _movedTouchPoints;
- int _minimumTouchPoints;
- int _maximumTouchPoints;
- bool _stealMouse;
-};
-
-QT_END_NAMESPACE
-
-QML_DECLARE_TYPE(QQuickTouchPoint)
-QML_DECLARE_TYPE(QQuickGrabGestureEvent)
-QML_DECLARE_TYPE(QQuickMultiPointTouchArea)
-
-QT_END_HEADER
-
-#endif // QQUICKMULTIPOINTTOUCHAREA_H
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