Qt Mobility Reference Documentation

mainwindow.h Example File

mapviewer/mainwindow.h
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 #ifndef MAINWINDOW_H
 #define MAINWINDOW_H

 #include <qgeomappingmanager.h>
 #include <qgeoroutingmanager.h>
 #include <qgraphicsgeomap.h>
 #include <qgeoserviceprovider.h>
 #include <qgeomappixmapobject.h>
 #include <qgeomapcircleobject.h>

 #include <QMainWindow>
 #include <QGraphicsView>
 #include <QGraphicsSceneMouseEvent>
 #include <QMenu>
 #include <QPixmap>
 #include <QList>
 #include <QTime>
 #include <qnetworksession.h>

 class QResizeEvent;
 class QShowEvent;

 class QSlider;
 class QRadioButton;
 class QLineEdit;
 class QPushButton;
 class QToolButton;

 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;
 };

 class MainWindow : public QMainWindow
 {
     Q_OBJECT
     Q_PROPERTY(bool controlsVisible READ controlsVisible WRITE setControlsVisible)

 public:
     MainWindow(QWidget *parent = 0);
     ~MainWindow();

     void setControlsVisible(bool visible);
     bool controlsVisible();

 protected:
     void resizeEvent(QResizeEvent* event);
     void showEvent(QShowEvent *);

 private:
     void setupUi();
     void setProvider(QString providerId);
     void createMenus();
     void createPixmapIcon();

 private slots:
     void demo1(bool checked);
     void demo2(bool checked);
     void demo3(bool checked);
     void drawRect(bool checked);
     void drawPixmap(bool checked);
     void drawPolyline(bool checked);
     void drawPolygon(bool checked);
     void drawCircle(bool checked);
     void drawText(bool checked);
     void calcRoute(bool checked);
     void customContextMenuRequest(const QPoint&);
     void routeFinished();
     void removePixmaps();
     void selectObjects();

     void sliderValueChanged(int zoomLevel);
     void mapZoomLevelChanged(qreal zoomLevel);
     void mapTypeToggled(bool checked);
     void mapTypeChanged(QGraphicsGeoMap::MapType type);
     void setCoordsClicked();
     void updateCoords(const QGeoCoordinate &coords);
     void sceneSelectionChanged();

     void networkSessionOpened();
     void error(QNetworkSession::SessionError error);

 private:
     QGeoServiceProvider *m_serviceProvider;
     QGeoMappingManager *m_mapManager;
     QGeoRoutingManager *m_routingManager;

     MapWidget *m_mapWidget;
     QGraphicsPathItem* m_fullScreenButton;
     QMenu* m_popupMenu;
     QPixmap m_markerIcon;
     QPoint m_lastClicked;
     QList<QGeoMapPixmapObject*> m_markerObjects;

     QGraphicsView* m_qgv;
     QSlider* m_slider;
     QList<QRadioButton*> m_mapControlButtons;
     QList<QGraphicsGeoMap::MapType> m_mapControlTypes;
     QLineEdit *m_latitudeEdit;
     QLineEdit *m_longitudeEdit;
     QToolButton *m_captureCoordsButton;
     QPushButton *m_setCoordsButton;

     QLayout *m_layout;
     bool m_controlsVisible;

     QNetworkSession *m_session;
 };

 #endif // MAINWINDOW_H
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