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-rw-r--r--noncore/graphics/opie-eye/lib/oimagezoomer.cpp90
-rw-r--r--noncore/graphics/opie-eye/lib/oimagezoomer.h84
2 files changed, 166 insertions, 8 deletions
diff --git a/noncore/graphics/opie-eye/lib/oimagezoomer.cpp b/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
index ffa3c0c..4df5dcc 100644
--- a/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
+++ b/noncore/graphics/opie-eye/lib/oimagezoomer.cpp
@@ -6,57 +6,147 @@
#include <qrect.h>
#include <qpoint.h>
#include <qsize.h>
namespace Opie {
namespace MM {
+
+/**
+ * \brief The most simple c'tor
+ * The main c'tor. You still need to set a QPixmap/QIMage,
+ * setImageSize,setViewPortSize,setVisiblePoint
+ *
+ * @param parent The parent widget
+ * @param name A name for this widget
+ * @param fl The widget flags
+ *
+ */
OImageZoomer::OImageZoomer( QWidget* parent, const char* name, WFlags fl )
: QFrame( parent, name, fl ) {
init();
}
+
+/**
+ * \brief This c'tor takes a QPixmap additional
+ *
+ * You initially set the QPixmap but you still need to provide
+ * the additional data to make this widget useful
+ *
+ * @param pix A Pixmap it'll be converted to a QImage later!
+ * @param par The parent widget
+ * @param name The name of this widget
+ * @param fl The widget flags
+ */
OImageZoomer::OImageZoomer( const QPixmap& pix, QWidget* par, const char* name, WFlags fl )
: QFrame( par, name, fl ) {
init();
setImage( pix );
}
+
+/**
+ * \brief This c'tor takes a QImage instead
+ * You just provide a QImage which is saved. It behaves the same as the others.
+ *
+ * @param img A Image which will be used for the zoomer content
+ * @param par The parent of the widget
+ * @param name The name of the widget
+ * @param fl The widgets flags
+ */
+OImageZoomer::OImageZoomer( const QImage& img, QWidget* par, const char* name, WFlags fl)
+ : QFrame( par, name, fl ) {
+ init();
+ setImage( img );
+}
+
+
+/**
+ * \brief overloaded c'tor
+ *
+ * This differs only in the arguments it takes
+ *
+ *
+ * @param pSize The size of the Page you show
+ * @param vSize The size of the viewport. The size of the visible part of the widget
+ * @param par The parent of the widget
+ * @param name The name
+ * @param fl The window flags
+ */
OImageZoomer::OImageZoomer( const QSize& pSize, const QSize& vSize, QWidget* par,
const char* name, WFlags fl )
: QFrame( par, name, fl ), m_imgSize( pSize ),m_visSize( vSize ) {
init();
}
+/**
+ * d'tor
+ */
OImageZoomer::~OImageZoomer() {
}
void OImageZoomer::init() {
setFrameStyle( Panel | Sunken );
}
+
+/**
+ * \brief set the page/image size
+ * Tell us the QSize of the Data you show to the user. We need this
+ * to do the calculations
+ *
+ * @param size The size of the stuff you want to zoom on
+ */
void OImageZoomer::setImageSize( const QSize& size ) {
m_imgSize = size;
repaint();
}
+
+/**
+ * \brief Set the size of the viewport
+ * Tell us the QSize of the viewport. The viewport is the part
+ * of the widget which is exposed on the screen
+ *
+ * @param size Te size of the viewport
+ *
+ * @see QScrollView::viewport()
+ */
void OImageZoomer::setViewPortSize( const QSize& size ) {
m_visSize = size;
repaint();
}
+/**
+ * \brief the point in the topleft corner which is currently visible
+ * Set the visible point. This most of the times relate to QScrollView::contentsX()
+ * and QScrollView::contentsY()
+ *
+ * @see setVisiblePoint(int,int)
+ */
void OImageZoomer::setVisiblePoint( const QPoint& pt ) {
m_visPt = pt;
repaint();
}
+
+/**
+ * Set the Image. The image will be resized on resizeEvent
+ * and it'll set the QPixmap background
+ *
+ * @param img The image will be stored internally and used as the background
+ */
void OImageZoomer::setImage( const QImage& img) {
m_img = img;
resizeEvent( 0 );
repaint();
}
+/**
+ * overloaded function it calls the QImage version
+ */
void OImageZoomer::setImage( const QPixmap& pix) {
setImage( pix.convertToImage() );
}
void OImageZoomer::resizeEvent( QResizeEvent* ev ) {
QFrame::resizeEvent( ev );
diff --git a/noncore/graphics/opie-eye/lib/oimagezoomer.h b/noncore/graphics/opie-eye/lib/oimagezoomer.h
index 605416c..2516c61 100644
--- a/noncore/graphics/opie-eye/lib/oimagezoomer.h
+++ b/noncore/graphics/opie-eye/lib/oimagezoomer.h
@@ -10,18 +10,35 @@ class QPoint;
namespace Opie {
namespace MM {
/**
- * \brief small class to zoom over a widget
- * This class takes a QImage or QPixmap
- * and gets the size of the original image
- * and provides depending of this widgets size
- * a zoomer and emits the region which should
- * be shown / zoomed to
+ * \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 );
@@ -35,31 +52,82 @@ public slots:
void setVisiblePoint( const QPoint& );
void setVisiblePoint( int x, int y );
void setImage( const QImage& );
void setImage( const QPixmap& );
signals:
- void zoomAreaRel( int,int );
- void zoomArea( int,int );
+ /**
+ * 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 mouseMoveEvent of this widget.
+ * 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
+ */
void mousePressEvent( QMouseEvent* ev );
+ /**
+ * make sure to call these if you reimplement
+ * @internal
+ */
void mouseMoveEvent( QMouseEvent* ev );
private:
+ /**
+ * @internal
+ */
void init();
QImage m_img;
QSize m_imgSize, m_visSize;
QPoint m_visPt;
int m_mouseX, m_mouseY;
};
+/**
+ * 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 ) );
}
}
}