tool.h (40)

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#ifndef TOOL_H
#define TOOL_H

#include <QObject>
#include <QGraphicsSceneMouseEvent>
class PDFScene;

class Tool : public QObject
{
    Q_OBJECT

public:
    Tool(PDFScene* scn);

    // ----------------------------------------------------
    // Event handlers which each subclass must implement
    // ----------------------------------------------------
    virtual void mouseMoveEvent ( QGraphicsSceneMouseEvent * ev) = 0;
    virtual void mousePressEvent ( QGraphicsSceneMouseEvent * ev) = 0;
    virtual void mouseReleaseEvent ( QGraphicsSceneMouseEvent * ev) = 0;
    virtual void mouseLeftClickEvent ( QGraphicsSceneMouseEvent * ev) = 0;

    virtual void activate() = 0;

signals:

    void activated();

protected:
    PDFScene* scene;
};

#endif // TOOL_H

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