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-#ifndef OPIE_ODP_IMAGE_ZOOMER_H
-#define OPIE_ODP_IMAGE_ZOOMER_H
-
-#include <qframe.h>
-#include <qimage.h>
-
-class QPixmap;
-class QRect;
-class QPoint;
-
-
-namespace Opie {
-namespace MM {
-
-/**
- * \brief small class to zoom over a Page
- *
- * This class represents your page but smaller.
- * It can draw a Rect on top of an Image/Pixmap you supply
- * and you can allow the user easily zooming/moving
- * over your widget.
- * All you need to do is to supply a image/pixmap, the visible size
- * and the original image/pixmap size and the current visible top/left
- * position.
- *
- * This Image works perfectly with QScrollView as you can connect
- * QScrollView::contentsMoving to setVisiblePoint slot and the zoomAreRel
- * to the QScrollView::scrollBy slot. Now you would only need to watch
- * the resize event anf give us the new information about QScrollView::viewport
- *
- * You need to position and set the size of this widget! using setFixedSize() is quite
- * a good idea for this widget
- *
- * @see QScrollView
- * @see QScrollView::viewport()
- *
- * @since 1.2
- *
- */
-class OImageZoomer : public QFrame {
- Q_OBJECT
-public:
- OImageZoomer( QWidget* parent = 0, const char* name = 0, WFlags fl = 0 );
- OImageZoomer( const QPixmap&,QWidget* parent = 0, const char* name = 0, WFlags fl = 0 );
- OImageZoomer( const QImage&, QWidget* parent = 0, const char* name= 0, WFlags fl = 0 );
- OImageZoomer( const QSize&, const QSize&, QWidget* par, const char*, WFlags fl );
- ~OImageZoomer();
-
-public slots:
- void setImageSize( const QSize& );
- void setViewPortSize( const QSize& );
- void setVisiblePoint( const QPoint& );
- void setVisiblePoint( int x, int y );
- void setImage( const QImage& );
- void setImage( const QPixmap& );
-
-signals:
- /**
- * Relative movement in the coordinates of the viewport
- * This signal can easily be connected to QScrollView::scrollBy.
- * This signal is emitted from within the mouseMoveEvent of this widget
- *
- *
- * @param x The way to move relative on the X-Axis
- * @param y The way to move relative on the Y-Axis
- *
- * @see setVisiblePoint
- * @see QScrollView::scrollBy
- */
- void zoomAreaRel( int x,int y);
-
- /**
- * Here you get absolute coordinates.
- * This slot will be emitted from within the mouseReleaseEvent of this widget.
- * if no mouse move where done.
- * So you may not delete this widget
- *
- * @param x The absolute X Coordinate to scroll to.
- * @param y The absolute Y Coordinate to scroll to.
- *
- */
- void zoomArea( int x,int y);
-
-public:
- /**
- * make sure to call these if you reimplement
- * @internal
- */
- void resizeEvent( QResizeEvent* );
-
-protected:
- /**
- * make sure to call these if you reimplement
- * @internal
- */
- void drawContents( QPainter* p );
-
- /**
- * make sure to call these if you reimplememt
- * @internal
- */
- virtual void mousePressEvent( QMouseEvent* ev );
- /**
- * make sure to call these if you reimplement
- * @internal
- */
- virtual void mouseMoveEvent( QMouseEvent* ev );
- /**
- * make sure to call these if you reimplement
- * @internal
- */
- virtual void mouseReleaseEvent( QMouseEvent* ev );
-
-private:
- /**
- * @internal
- */
- void init();
- QImage m_img;
- QSize m_imgSize, m_visSize;
- QPoint m_visPt;
- int m_mouseX, m_mouseY;
- bool m_mevent;
-};
-
-/**
- * This slot is present for convience. You can connect the
- * QScrollView::contentsMoved to this slot and it calls the QPoint
- * version for you
- * This realtes to QScrollView::contentsX() and QScrollView::contentsY()
- *
- * @param x The top left x coordinate
- * @param y The top left y coorisnate
- */
-inline void OImageZoomer::setVisiblePoint( int x, int y ) {
- setVisiblePoint( QPoint( x, y ) );
-}
-
-}
-}
-#endif