TorMapWidgetInputHandler.h

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00001 /*
00002 **  This file is part of Vidalia, and is subject to the license terms in the
00003 **  LICENSE file, found in the top level directory of this distribution. If you
00004 **  did not receive the LICENSE file with this file, you may obtain it from the
00005 **  Vidalia source package distributed by the Vidalia Project at
00006 **  http://www.vidalia-project.net/. No part of Vidalia, including this file,
00007 **  may be copied, modified, propagated, or distributed except according to the
00008 **  terms described in the LICENSE file.
00009 */
00010 
00011 #ifndef _TORMAPWIDGETINPUTHANDLER_H
00012 #define _TORMAPWIDGETINPUTHANDLER_H
00013 
00014 #include "MarbleWidgetInputHandler.h"
00015 
00016 #include <QEvent>
00017 #include <QObject>
00018 #include <QPoint>
00019 
00020 
00021 class TorMapWidgetInputHandler : public Marble::MarbleWidgetInputHandler
00022 {
00023   Q_OBJECT
00024 
00025 public:
00026   /** Default constructor.
00027    */
00028   TorMapWidgetInputHandler();
00029 
00030 signals:
00031   /** Emitted when the user clicks on a map feature located at <b>point</b>.
00032    * <b>button</b> indicates which mouse button was clicked.
00033    */
00034   void featureClicked(const QPoint &point, Qt::MouseButton button);
00035 
00036 protected:
00037   /** Filter and handles event <b>e</b> that was sent to widget <b>obj</b>.
00038    * <b>obj</b> is always a MarbleWidget object.
00039    */
00040   virtual bool eventFilter(QObject *obj, QEvent *e);
00041 
00042 private:
00043   /** Returns true if the map has one or more features located at the screen
00044    * position <b>point</b>.
00045    */
00046   bool pointHasFeatures(const QPoint &point) const;
00047 
00048   int   _mousePressedX;
00049   int   _mousePressedY;
00050   qreal _mousePressedLon;
00051   qreal _mousePressedLat;
00052 };
00053 
00054 #endif
00055 

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