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interfaces.h Example File
^{tools/plugandpaint/interfaces.h}

 /****************************************************************************
 **
 ** Copyright (C) 2005-2007 Trolltech ASA. All rights reserved.
 **
 ** This file is part of the example classes of the Qt Toolkit.
 **
 ** This file may be used under the terms of the GNU General Public
 ** License version 2.0 as published by the Free Software Foundation
 ** and appearing in the file LICENSE.GPL included in the packaging of
 ** this file.  Please review the following information to ensure GNU
 ** General Public Licensing requirements will be met:
 ** http://www.trolltech.com/products/qt/opensource.html
 **
 ** If you are unsure which license is appropriate for your use, please
 ** review the following information:
 ** http://www.trolltech.com/products/qt/licensing.html or contact the
 ** sales department at [email protected].
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 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/

 #ifndef INTERFACES_H
 #define INTERFACES_H

 class QImage;
 class QPainter;
 class QPainterPath;
 class QPoint;
 class QRect;
 class QString;
 class QStringList;

 class BrushInterface
 {
 public:
     virtual ~BrushInterface() {}

     virtual QStringList brushes() const = 0;
     virtual QRect mousePress(const QString &brush, QPainter &painter,
                              const QPoint &pos) = 0;
     virtual QRect mouseMove(const QString &brush, QPainter &painter,
                             const QPoint &oldPos, const QPoint &newPos) = 0;
     virtual QRect mouseRelease(const QString &brush, QPainter &painter,
                                const QPoint &pos) = 0;
 };

 class ShapeInterface
 {
 public:
     virtual ~ShapeInterface() {}

     virtual QStringList shapes() const = 0;
     virtual QPainterPath generateShape(const QString &shape,
                                        QWidget *parent) = 0;
 };

 class FilterInterface
 {
 public:
     virtual ~FilterInterface() {}

     virtual QStringList filters() const = 0;
     virtual QImage filterImage(const QString &filter, const QImage &image,
                                QWidget *parent) = 0;
 };

 Q_DECLARE_INTERFACE(BrushInterface,
                     "com.trolltech.PlugAndPaint.BrushInterface/1.0")
 Q_DECLARE_INTERFACE(ShapeInterface,
                     "com.trolltech.PlugAndPaint.ShapeInterface/1.0")
 Q_DECLARE_INTERFACE(FilterInterface,
                     "com.trolltech.PlugAndPaint.FilterInterface/1.0")

 #endif