KplView Class Reference

Kpl main view class. More...

#include <kplview.h>

Inheritance diagram for KplView:

Signals
void	mouseLeaved ()
	Emitted when mouse cursor leaves the widget.
void	urlsDropped (QList< QUrl > *list)
	Emitted at drop event.
void	regionSelected (const QRectF &rect)
	Emitted when rectangular region was selected using the mouse with its right button pressed.

Public Member Functions
	KplView (double f=1, QWidget *parent=0)
	Constructor.
virtual	~KplView ()
	Destructor.
void	setZoomFactor (double f)
	Sets zoom factor.
virtual QSize	sizeHint () const
	Calculates recommended size of the widget.
double	zoomFactor () const
	Returns zoom factor.

Protected Member Functions
virtual void	dragEnterEvent (QDragEnterEvent *e)
virtual void	dragMoveEvent (QDragMoveEvent *e)
virtual void	dropEvent (QDropEvent *e)
	Emits the signal urlsDropped, transferring a list of URLs.
virtual void	keyPressEvent (QKeyEvent *e)
	Implements scrolling of the window by key sequences.
virtual void	leaveEvent (QEvent *e)
	Emits the signal mouseLeaved.
virtual void	mouseMoveEvent (QMouseEvent *e)
	Implements selection of a rectangular region using the mouse with its right button pressed.
virtual void	mousePressEvent (QMouseEvent *e)
	Implements initiation of selection of a rectangular region using the mouse with its right button pressed.
virtual void	mouseReleaseEvent (QMouseEvent *e)
	Implements finishing of selection of a rectangular region using the mouse with its right button pressed.

Protected Attributes
double	m_zoomFactor
QPoint	startPos
QRubberBand *	rubberBand

Detailed Description

Kpl main view class.

Displays the plot items of a KplScene. Provides methods for scrolling and zooming.

Author

Werner Stille

Constructor & Destructor Documentation

KplView()

KplView::KplView	(	double	f = 1,
		QWidget *	parent = 0
	)

Constructor.

Parameters

f	zoom factor.
parent	pointer to parent widget.

Member Function Documentation

dragEnterEvent()

virtual void KplView::dragEnterEvent ( QDragEnterEvent *  e )

protectedvirtual

Parameters

e	pointer to event.

dragMoveEvent()

virtual void KplView::dragMoveEvent ( QDragMoveEvent *  e )

protectedvirtual

Parameters

e	pointer to event.

dropEvent()

virtual void KplView::dropEvent ( QDropEvent *  e )

protectedvirtual

Emits the signal urlsDropped, transferring a list of URLs.

Parameters

e	pointer to event.

keyPressEvent()

virtual void KplView::keyPressEvent ( QKeyEvent *  e )

protectedvirtual

Implements scrolling of the window by key sequences.

• Home scrolls to bottom margin.
• End scrolls to top margin.
• Ctrl+Home scrolls to left margin.
• Ctrl+End scrolls to right margin.
• PgUp scrolls page up.
• PgDown scrolls page down.

Parameters

e	pointer to event.

leaveEvent()

virtual void KplView::leaveEvent ( QEvent *  e )

protectedvirtual

Emits the signal mouseLeaved.

Parameters

e	pointer to event.

mouseMoveEvent()

virtual void KplView::mouseMoveEvent ( QMouseEvent *  e )

protectedvirtual

Implements selection of a rectangular region using the mouse with its right button pressed.

Parameters

e	pointer to event.

mousePressEvent()

virtual void KplView::mousePressEvent ( QMouseEvent *  e )

protectedvirtual

Implements initiation of selection of a rectangular region using the mouse with its right button pressed.

Parameters

e	pointer to event.

mouseReleaseEvent()

virtual void KplView::mouseReleaseEvent ( QMouseEvent *  e )

protectedvirtual

Implements finishing of selection of a rectangular region using the mouse with its right button pressed.

In this case the signal regionSelected is emitted, transferring the rectangle.

Parameters

e	pointer to event.

regionSelected

void KplView::regionSelected ( const QRectF &  rect )

signal

Emitted when rectangular region was selected using the mouse with its right button pressed.

Parameters

rect	rectangle in pixel units. units.

setZoomFactor()

void KplView::setZoomFactor

(

double

f

)

Sets zoom factor.

Parameters

f	zoom factor.

urlsDropped

void KplView::urlsDropped ( QList< QUrl > *  list )

signal

Emitted at drop event.

Parameters

list	pointer to list of dropped URLs.

---

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

• kplview.h