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view.h Example File
sql/drilldown/view.h

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 #ifndef VIEW_H
 #define VIEW_H

 #include <QtGui>
 #include <QtSql>

 class ImageItem;
 class InformationWindow;

 class View : public QGraphicsView
 {
     Q_OBJECT

 public:
     View(const QString &offices, const QString &images, QWidget *parent = 0);

 protected:
     void mouseReleaseEvent(QMouseEvent *event);

 private slots:
     void updateImage(int id, const QString &fileName);

 private:
     void addItems();
     InformationWindow* findWindow(int id);
     void showInformation(ImageItem *image);

     QGraphicsScene *scene;
     QList<InformationWindow *> informationWindows;
     QSqlRelationalTableModel *officeTable;
 };

 #endif