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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef MAPWIDGET_H
#define MAPWIDGET_H
#include <qgraphicsgeomap.h>
#include <QTime>
#include <QPen>
class QGraphicsSceneMouseEvent;
class QPinchGesture;
QTM_BEGIN_NAMESPACE
class QGeoCoordinate;
class QGeoMappingManager;
class QGeoMapCircleObject;
QTM_END_NAMESPACE
QTM_USE_NAMESPACE
class GeoMap : public QGraphicsGeoMap
{
Q_OBJECT
public:
GeoMap(QGeoMappingManager * manager);
~GeoMap();
signals:
void contextMenu(QGraphicsSceneContextMenuEvent * event, QGeoMapObject * clickedMapObject);
private slots:
void kineticTimerEvent();
void hoveredMapObjectDestroyed();
protected:
void mousePressEvent(QGraphicsSceneMouseEvent * event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent * event);
void hoverMoveEvent(QGraphicsSceneHoverEvent * event);
void hoverLeaveEvent(QGraphicsSceneHoverEvent * event);
void mouseMoveEvent(QGraphicsSceneMouseEvent * event);
void mouseDoubleClickEvent(QGraphicsSceneMouseEvent * event);
void keyPressEvent(QKeyEvent * event);
void keyReleaseEvent(QKeyEvent * event);
void wheelEvent(QGraphicsSceneWheelEvent * event);
void contextMenuEvent(QGraphicsSceneContextMenuEvent * event);
bool sceneEvent(QEvent *event);
private:
bool panActive;
bool panDecellerate;
// Fractional pan, used by panFloatWrapper
QPointF remainingPan;
// current kinetic panning speed, in pixel/msec
QPointF kineticPanSpeed;
QPoint panDir;
QTimer * kineticTimer;
QTime lastMoveTime;
// An entry in the mouse history. first=speed, second=time
typedef QPair<QPointF, QTime> MouseHistoryEntry;
// A history of the last (currently 5) mouse move events is stored in order to smooth out movement detection for kinetic panning
QList<MouseHistoryEntry> mouseHistory;
void panFloatWrapper(const QPointF & delta);
void applyPan(const Qt::KeyboardModifiers & modifiers);
QGeoMapObject * m_lastHoveredMapObject;
QPen m_lastHoveredMapObjectPen;
public:
QGeoMapCircleObject * lastCircle;
private:
void handlePinchGesture(QPinchGesture * pinchGesture);
};
#endif // MAPWIDGET_H
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