Viewer.hpp

#ifndef _QDISPLAY_VIEWER_H_
#define _QDISPLAY_VIEWER_H_

#include <QGraphicsView>
#include <QStatusBar>
#include <QGraphicsSceneMouseEvent>
#include <QKeyEvent>
#include <QMap>

namespace jafar {
namespace qdisplay {

class ImageView;
class Shape;
class Line;
class PolyLine;
class Viewer;

class MouseGraphicsScene: public QGraphicsScene
{
  private:
    Viewer* viewer;
  public:
    MouseGraphicsScene(Viewer* viewer): viewer(viewer) {}
    void mouseMoveEvent ( QGraphicsSceneMouseEvent * event );
    void mouseReleaseEvent ( QGraphicsSceneMouseEvent * mouseEvent );
};

class Viewer : public QGraphicsView {
  Q_OBJECT
  public:
    Viewer(int mosaicWidth = 0, int mosaicHeight = 0, QGraphicsScene* scene = 0);
    
    ~Viewer();
    void setBackgroundColor(int R, int G, int B);
    QGraphicsScene* scene() { return m_scene; }
    ImageView* imageItem(int row = 0, int col = 0)
    {
      return m_imageMosaic[row][col];
    }
    void setImageView(ImageView* ii, int row = 0, int col= 0);
    int rows();
    int cols();
    void addShape(qdisplay::Shape* si);
    
    void splitVertical();
    void splitHorizontal();

    void addLine(qdisplay::Line* li);

    void addPolyLine(qdisplay::PolyLine* pl);
    
    bool isVisible() { return !QGraphicsView::isHidden(); }
    void scaleView(qreal scaleFactor);
    void setWindowSize( int width, int height );
    void close();

    void setTitle(const std::string& _title );
    void setTitleWithMouseCoordinates(double x, double y);
    std::string const& getTitle() { return title; }

  void setStatusMessage(QString& infoString, int timeout=0);

  void setStatusMessage(const char* infoString, int timeout=0);

    void exportView( const std::string& fileName );
  public slots:
    void exportView();
    //void updateSceneRect();
  signals:
    void onKeyPress(QKeyEvent *event);
    void onMouseClick(QGraphicsSceneMouseEvent *mouseEvent, bool isClick);
    void onMouseMove(QGraphicsSceneMouseEvent *mouseEvent);
  protected:
    virtual void contextMenuEvent ( QContextMenuEvent * event );
    virtual void keyPressEvent ( QKeyEvent * event );
    virtual void wheelEvent(QWheelEvent *event);
    virtual void resizeEvent(QResizeEvent  * event);
    virtual void mouseReleaseEvent ( QMouseEvent * event );
    virtual void mouseMoveEvent ( QMouseEvent * event );
  private:
    QGraphicsScene* m_scene;
    friend class MouseGraphicsScene;
    QMap< int, QMap< int, ImageView* > > m_imageMosaic;
    int m_mosaicWidth, m_mosaicHeight;
    int m_windowWidth, m_windowHeight;      // added
    double m_currentZ;
    QAction *m_exportView;
    std::string title;
  QCursor* crossCursor;
  void createCursor();

  
  QStatusBar *statusBar;
  QStatusBar *statusBarShadow;

};

}
}

#endif