Qt:Документация 4.3.2/tools-plugandpaintplugins-basictools-basictoolsplugin-h

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[править] basictoolsplugin.h Example File
tools/plugandpaintplugins/basictools/basictoolsplugin.h

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 #ifndef BASICTOOLSPLUGIN_H
 #define BASICTOOLSPLUGIN_H
 
 #include <QRect>
 #include <QObject>
 #include <QStringList>
 #include <QPainterPath>
 #include <QImage>
 
 #include <plugandpaint/interfaces.h>
 
 class BasicToolsPlugin : public QObject,
                          public BrushInterface,
                          public ShapeInterface,
                          public FilterInterface
 {
     Q_OBJECT
     Q_INTERFACES(BrushInterface ShapeInterface FilterInterface)
 
 public:
     // BrushInterface
     QStringList brushes() const;
     QRect mousePress(const QString &amp;brush, QPainter &amp;painter,
                      const QPoint &amp;pos);
     QRect mouseMove(const QString &amp;brush, QPainter &amp;painter,
                     const QPoint &amp;oldPos, const QPoint &amp;newPos);
     QRect mouseRelease(const QString &amp;brush, QPainter &amp;painter,
                        const QPoint &amp;pos);
 
     // ShapeInterface
     QStringList shapes() const;
     QPainterPath generateShape(const QString &amp;shape, QWidget *parent);
 
     // FilterInterface
     QStringList filters() const;
     QImage filterImage(const QString &amp;filter, const QImage &amp;image,
                        QWidget *parent);
 };
 
 #endif

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Qt 4.3.2