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+<title>t11/cannon.h Example File</title>
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+<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>t11/cannon.h Example File</h1>
+
+
+<pre>/****************************************************************
+**
+** Definition of CannonField class, Qt tutorial 11
+**
+****************************************************************/
+
+#ifndef CANNON_H
+#define CANNON_H
+
+class QTimer;
+
+
+#include &lt;<a href="qwidget-h.html">qwidget.h</a>&gt;
+
+
+class CannonField : public <a href="qwidget.html">QWidget</a>
+{
+ Q_OBJECT
+public:
+ CannonField( <a href="qwidget.html">QWidget</a> *parent=0, const char *name=0 );
+
+ int angle() const { return ang; }
+ int force() const { return f; }
+ <a href="qsizepolicy.html">QSizePolicy</a> sizePolicy() const;
+
+public slots:
+ void setAngle( int degrees );
+ void setForce( int newton );
+ void shoot();
+
+private slots:
+ void moveShot();
+
+signals:
+ void angleChanged( int );
+ void forceChanged( int );
+
+protected:
+ void paintEvent( <a href="qpaintevent.html">QPaintEvent</a> * );
+
+private:
+ void paintShot( <a href="qpainter.html">QPainter</a> * );
+ void paintCannon( <a href="qpainter.html">QPainter</a> * );
+ <a href="qrect.html">QRect</a> cannonRect() const;
+ <a href="qrect.html">QRect</a> shotRect() const;
+
+ int ang;
+ int f;
+
+ int timerCount;
+ <a href="qtimer.html">QTimer</a> * autoShootTimer;
+ float shoot_ang;
+ float shoot_f;
+};
+
+
+#endif // CANNON_H
+</pre><!-- eof -->
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