The ImageScrollArea class is a widget displaying an image and providing shortcuts to scale up/down the image. More...

Signals
void	scaleChanged (double scaleFactor)
Public Member Functions
	ImageScrollArea (QWidget *parent=0)
QLabel *	image ()
void	scaleImage (double factor, bool relative=true)
Protected Member Functions
virtual void	wheelEvent (QWheelEvent *event)
Private Member Functions
void	adjustScrollBar (QScrollBar *scrollBar, double factor, bool relative)
Private Attributes
QLabel *	imageLabel
	QLabel in which the image is displayed.
double	scaleFactor
	Image scale factor (1.0 means normal size)

Detailed Description

The ImageScrollArea class is a widget displaying an image and providing shortcuts to scale up/down the image.

Definition at line 26 of file ImageScrollArea.h.

Constructor & Destructor Documentation

ImageScrollArea::ImageScrollArea ( QWidget * parent = 0 )

Constructs an image scroll area with the given parent.

Definition at line 35 of file ImageScrollArea.cpp.

void ImageScrollArea::adjustScrollBar	(	QScrollBar *	scrollBar,
		double	factor,
		bool	relative
	)		`[private]`

Adjusts scroll bars position when image scale is modified.

Definition at line 103 of file ImageScrollArea.cpp.

QLabel * ImageScrollArea::image ( )

Returs a pointer to the QLabel displaying the image.

Definition at line 53 of file ImageScrollArea.cpp.

void ImageScrollArea::scaleImage	(	double	factor,
		bool	relative = `true`
	)

Scales the image.

If relative is true, image current scale is multiplied by factor. Otherwise, image current scale is replaced by factor.

Definition at line 82 of file ImageScrollArea.cpp.

void ImageScrollArea::wheelEvent ( QWheelEvent * event ) [protected, virtual]

Handles wheel events to navigate and zoom inside the scroll area.

Definition at line 61 of file ImageScrollArea.cpp.

The documentation for this class was generated from the following files: