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# paintarea.h Example File
tools/plugandpaint/paintarea.h

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     #ifndef PAINTAREA_H
     #define PAINTAREA_H

     #include <QColor>
     #include <QImage>
     #include <QPainterPath>
     #include <QWidget>

     class BrushInterface;

     class PaintArea : public QWidget
     {
         Q_OBJECT

     public:
         PaintArea(QWidget *parent = 0);

         bool openImage(const QString &fileName);
         bool saveImage(const QString &fileName, const char *fileFormat);
         void setImage(const QImage &image);
         void insertShape(const QPainterPath &path);
         void setBrushColor(const QColor &color);
         void setBrushWidth(int width);
         void setBrush(BrushInterface *brushInterface, const QString &brush);

         QImage image() const { return theImage; }
         QColor brushColor() const { return color; }
         int brushWidth() const { return thickness; }
         QSize sizeHint() const;

     protected:
         void paintEvent(QPaintEvent *event);
         void mousePressEvent(QMouseEvent *event);
         void mouseMoveEvent(QMouseEvent *event);
         void mouseReleaseEvent(QMouseEvent *event);

     private:
         void setupPainter(QPainter &painter);

         QImage theImage;
         QColor color;
         int thickness;

         BrushInterface *brushInterface;
         QString brush;
         QPoint lastPos;

         QPainterPath pendingPath;
     };

     #endif