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authoralwin <alwin>2004-04-15 07:44:05 (UTC)
committer alwin <alwin>2004-04-15 07:44:05 (UTC)
commit20175bc18b278426c80ff890853cbf54839f88be (patch) (side-by-side diff)
treeabc2943f625238019fa3fe60f822af46f3f91425 /libopie2
parentc2431e77975471a85adf882a7d4642089e2219f4 (diff)
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start of documentation
Diffstat (limited to 'libopie2') (more/less context) (show whitespace changes)
-rw-r--r--libopie2/opiemm/oimagescrollview.h103
1 files changed, 94 insertions, 9 deletions
diff --git a/libopie2/opiemm/oimagescrollview.h b/libopie2/opiemm/oimagescrollview.h
index 3d2ea38..94fddb6 100644
--- a/libopie2/opiemm/oimagescrollview.h
+++ b/libopie2/opiemm/oimagescrollview.h
@@ -1,67 +1,152 @@
#ifndef _IMAGE_SCROLL_VIEW_H
#define _IMAGE_SCROLL_VIEW_H
#include <qscrollview.h>
#include <qimage.h>
#include <qpixmap.h>
#include <qstring.h>
#include <qdialog.h>
#include <qbitarray.h>
class QPainter;
namespace Opie { namespace MM {
class OImageZoomer;
-
+/**
+ * \brief Class displaying an image with scrollbars
+ *
+ * This class displays various image formats supported by QT an
+ * gives a small interface for basics display modifications.
+ *
+ * @see QScrollView
+ *
+ * @since 1.2
+ */
class OImageScrollView:public QScrollView
{
Q_OBJECT
public:
enum Rotation {
Rotate0,
Rotate90,
Rotate180,
Rotate270
};
+ /**
+ * Standard constructor
+ * @param parent the parent widget
+ * @param name the name of the widget
+ * @param fl widget flags. The flag Qt::WRepaintNoErase will be always set.
+ */
OImageScrollView( QWidget* parent, const char* name = 0, WFlags fl = 0 );
- OImageScrollView (const QImage&, QWidget * parent=0, const char * name=0, WFlags f=0,bool always_scale=false,bool rfit=false );
- OImageScrollView (const QString&, QWidget * parent=0, const char * name=0, WFlags f=0,bool always_scale=false,bool rfit=false );
+ /**
+ * constructor
+ * @param aImage QImage object to display
+ * @param parent the parent widget
+ * @param name the name of the widget
+ * @param fl widget flags. The flag Qt::WRepaintNoErase will be always set.
+ * @param always_scale if the image should be scaled into the display
+ * @param rfit the image will be rotated to fit
+ */
+ OImageScrollView (const QImage&aImage, QWidget * parent=0, const char * name=0, WFlags f=0,bool always_scale=false,bool rfit=false );
+ /**
+ * constructor
+ * @param aFile image file to display
+ * @param parent the parent widget
+ * @param name the name of the widget
+ * @param fl widget flags. The flag Qt::WRepaintNoErase will be always set.
+ * @param always_scale if the image should be scaled into the display
+ * @param rfit the image will be rotated to fit
+ */
+ OImageScrollView (const QString&aFile, QWidget * parent=0, const char * name=0, WFlags f=0,bool always_scale=false,bool rfit=false );
virtual ~OImageScrollView();
-
+ /**
+ * sets the WDestructiveClose flag to the view
+ */
virtual void setDestructiveClose();
- virtual void setAutoRotate(bool);
- virtual void setAutoScale(bool);
- virtual void setShowZoomer(bool);
-
+ /**
+ * set if the image should be rotate to best fit
+ * and repaint it if set to a new value.
+ *
+ * Be carefull - autorating real large images cost time!
+ * @param how if true then autorotate otherwise not
+ */
+ virtual void setAutoRotate(bool how);
+ /**
+ * set if the image should be scaled to the size of the viewport if larger(!)
+ *
+ * if autoscaling is set when loading a jpeg image, it will use a feature of
+ * jpeg lib to load the image scaled to display size. If switch of later the
+ * image will reloaded.
+ *
+ * @param how true - display image scaled down otherwise not
+ */
+ virtual void setAutoScale(bool how);
+ /**
+ * set if there should be displayed a small zoomer widget at the right bottom of
+ * the view when the image is larger than the viewport.
+ *
+ * @param how true - display zoomer
+ */
+ virtual void setShowZoomer(bool how);
+
+ /**
+ * return the current value of the autorotate flag.
+ */
virtual bool AutoRotate()const;
+ /**
+ * return the current value of the autoscale flag.
+ */
virtual bool AutoScale()const;
+ /**
+ * return the current value of the show zoomer flag.
+ */
virtual bool ShowZoomer()const;
public slots:
- virtual void setImage(const QImage&);
+ /**
+ * Displays a new image, calculations will made immediately.
+ *
+ * @param aImage the image to display
+ */
+ virtual void setImage(const QImage&aImage);
+ /**
+ * Displays a new image, calculations will made immediately.
+ *
+ * @param path the image to display
+ */
virtual void setImage( const QString& path );
signals:
+ /**
+ * emitted when the display image size has changed.
+ */
void imageSizeChanged( const QSize& );
+ /**
+ * emitted when the size of the viewport has changed, eg. in resizeEvent of
+ * the view.
+ *
+ * @see QWidget::resizeEvent
+ */
void viewportSizeChanged( const QSize& );
protected:
virtual void drawContents ( QPainter * p, int clipx, int clipy, int clipw, int cliph );
void init();
Opie::MM::OImageZoomer *_zoomer;
QImage _image_data;
QImage _original_data;
QPixmap _pdata;
int _mouseStartPosX,_mouseStartPosY;
QBitArray m_states;
Rotation m_last_rot;