CGAL 5.1 - CGAL and the Qt Graphics View Framework
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CGAL::Qt::GraphicsViewNavigation Class Reference
CGAL and the Qt Graphics View Framework Reference » Miscellaneous Classes

#include <CGAL/Qt/GraphicsViewNavigation.h>

Definition

An object of type GraphicsViewNavigation can be added as event filter to a Qt::QGraphicsView and its viewport.

Dragging the left mouse button while holding the 'Ctrl' key defines a zoom rectangle. Dragging the right mouse button while holding the 'Ctrl' key translates the scene. 'Ctrl-Shift' and a click of the right mouse button translates what is under the mouse to the center.

Operations

bool eventFilter (QObject *obj, QEvent *event)
 The event filter. More...
 

Signals

void mouseCoordinates (QPointF p)
 Emits the real world mouse coordinates. More...
 

Member Function Documentation

◆ eventFilter()

bool CGAL::Qt::GraphicsViewNavigation::eventFilter ( QObject *  obj,
QEvent *  event 
)

The event filter.

◆ mouseCoordinates()

void CGAL::Qt::GraphicsViewNavigation::mouseCoordinates ( QPointF  p)

Emits the real world mouse coordinates.