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#ifndef MAPSWIDGET_H
#define MAPSWIDGET_H

#include <QGraphicsView>
#include <QGraphicsScene>
#include <QWidget>
#include <QGraphicsRectItem>
#include <QGraphicsSimpleTextItem>

#include "qgraphicsgeomap.h"
#include "qgeomappingmanager.h"
#include "qgeocoordinate.h"

class MapsWidget;
class MarkerManager;
class Marker;
class StatusBarItem;
class ZoomButtonItem;

// The graphics item that actually contains the map
class GeoMap : public QGraphicsGeoMap
{
    Q_OBJECT

    Q_PROPERTY(double centerLatitude READ centerLatitude WRITE setCenterLatitude)
    Q_PROPERTY(double centerLongitude READ centerLongitude WRITE setCenterLongitude)

public:
    explicit GeoMap(QGeoMappingManager *manager, MapsWidget *mapsWidget);
    ~GeoMap();

    double centerLatitude() const;
    void setCenterLatitude(double lat);
    double centerLongitude() const;
    void setCenterLongitude(double lon);

private:
    MapsWidget *mapsWidget;

    bool panActive;
    bool markerPressed;
    QGeoMapObject *pressed;

    void mousePressEvent(QGraphicsSceneMouseEvent *event);
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
    void wheelEvent(QGraphicsSceneWheelEvent *event);
    void keyPressEvent(QKeyEvent *event);

signals:
    void clicked(Marker *marker);
    void panned();
};

class FixedGraphicsView : public QGraphicsView
{
    Q_OBJECT

public:
    FixedGraphicsView(QWidget *parent);

protected:
    void scrollContentsBy(int dx, int dy);
};

// A widget to hold the view and scene for a GeoMap, as well
// as control widgets
class MapsWidgetPrivate;
class MapsWidget : public QWidget
{
    Q_OBJECT

public:
    explicit MapsWidget(QWidget *parent = 0);
    ~MapsWidget();

    void setMarkerManager(MarkerManager *markerManager);
    MarkerManager *markerManager() const;

    QGraphicsGeoMap *map() const;
    StatusBarItem *statusBar() const;

    void animatedPanTo(QGeoCoordinate center);
    void setMyLocation(QGeoCoordinate location, bool center=true);

public slots:
    void initialize(QGeoMappingManager *manager);

signals:
    void markerClicked(Marker *marker);
    void mapPanned();

private:
    MapsWidgetPrivate *d;

    void resizeEvent(QResizeEvent *event);
    void showEvent(QShowEvent *event);
};

// An animated status bar item that appears at the bottom
// of the map
class StatusBarItemPrivate;
class StatusBarItem : public QObject, public QGraphicsRectItem
{
    Q_OBJECT
    Q_PROPERTY(int offset READ offset WRITE setOffset)

public:
    explicit StatusBarItem();
    ~StatusBarItem();

    int offset() const;
    void setRect(qreal x, qreal y, qreal w, qreal h);

public slots:
    void setText(QString text);

    void showText(QString text, quint32 timeout=3000);
    void show();
    void hide();

    void setOffset(int offset);

private:
    StatusBarItemPrivate *d;
};

// Zoom in / zoom out buttons, touch-friendly, appearing on the
// side of the map
class ZoomButtonItemPrivate;
class ZoomButtonItem : public QGraphicsRectItem
{
public:
    explicit ZoomButtonItem(GeoMap *map);

    void setRect(qreal x, qreal y, qreal w, qreal h);

private:
    ZoomButtonItemPrivate *d;

    bool isTopHalf(const QPointF &point);
    bool isBottomHalf(const QPointF &point);

protected:
    void mousePressEvent(QGraphicsSceneMouseEvent *event);
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
    void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
};

#endif // MAPSWIDGET_H