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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">cannonfield.h Example File<br /><small><small>tutorial/t13/cannonfield.h</small></small></h1>
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<pre> /****************************************************************************
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** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
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** This file is part of the documentation of the Qt Toolkit.
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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****************************************************************************/
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/****************************************************************
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** Definition of CannonField class, Qt tutorial 13
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****************************************************************/
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#include <QWidget>
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class CannonField : public QWidget
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CannonField(QWidget *parent = 0);
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int angle() const { return currentAngle; }
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int force() const { return currentForce; }
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bool gameOver() const { return gameEnded; }
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bool isShooting() const;
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void setAngle(int angle);
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void setForce(int force);
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void angleChanged(int newAngle);
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void forceChanged(int newForce);
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void canShoot(bool can);
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void paintEvent(QPaintEvent *event);
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void paintShot(QPainter &painter);
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void paintTarget(QPainter &painter);
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void paintCannon(QPainter &painter);
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QRect cannonRect() const;
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QRect shotRect() const;
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QRect targetRect() const;
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QTimer *autoShootTimer;
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#endif // CANNON_H</pre>
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