Qt 4.3: ax1.h Example File (activeqt/multiple/ax1.h)

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# ax1.h Example File
activeqt/multiple/ax1.h

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     #ifndef AX1_H
     #define AX1_H

     #include <QWidget>
     #include <QPainter>

     class QAxWidget1 : public QWidget
     {
         Q_OBJECT
         Q_CLASSINFO("ClassID", "{1D9928BD-4453-4bdd-903D-E525ED17FDE5}")
         Q_CLASSINFO("InterfaceID", "{99F6860E-2C5A-42ec-87F2-43396F4BE389}")
         Q_CLASSINFO("EventsID", "{0A3E9F27-E4F1-45bb-9E47-63099BCCD0E3}")

         Q_PROPERTY(QColor fillColor READ fillColor WRITE setFillColor)
     public:
         QAxWidget1(QWidget *parent = 0)
             : QWidget(parent), fill_color(Qt::red)
         {
         }

         QColor fillColor() const
         {
             return fill_color;
         }
         void setFillColor(const QColor &fc)
         {
             fill_color = fc;
             repaint();
         }

     protected:
         void paintEvent(QPaintEvent *e)
         {
             QPainter paint(this);
             QRect r = rect();
             r.adjust(10, 10, -10, -10);
             paint.fillRect(r, fill_color);
         }

     private:
         QColor fill_color;
     };

     #endif // AX1_H