/**************************************************************************** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** 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 Nokia Corporation 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 <qgeomapcircleobject.h> #include <qgeomappingmanager.h> #include <qgeocoordinate.h> #include <QGraphicsSceneMouseEvent> #include <QTime> QTM_USE_NAMESPACE class MapWidget : public QGraphicsGeoMap { Q_OBJECT public: MapWidget(QGeoMappingManager *manager); ~MapWidget(); public slots: void setMouseClickCoordQuery(bool state); signals: void coordQueryResult(const QGeoCoordinate &coord); private slots: void kineticTimerEvent(); protected: void mousePressEvent(QGraphicsSceneMouseEvent* event); void mouseReleaseEvent(QGraphicsSceneMouseEvent* event); void mouseMoveEvent(QGraphicsSceneMouseEvent* event); void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event); void keyPressEvent(QKeyEvent *event); void keyReleaseEvent(QKeyEvent* event); void wheelEvent(QGraphicsSceneWheelEvent* event); private: bool coordQueryState; 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); public: QGeoMapCircleObject *lastCircle; }; #endif // MAPWIDGET_H