WorldCanvas event-based elliptical region drawer. More...

#include <MWCETRegion.h>

Inheritance diagram for casa::MWCETRegion:

Public Member Functions
	MWCETRegion (Display::KeySym keysym=Display::K_Pointer_Button2)
	Constructor.
virtual	~MWCETRegion ()
	Destructor.
virtual void	handleEvent (DisplayEvent &ev)
	handle events, via new-style interface.
Protected Member Functions
virtual void	doubleInside ()
	Handle double-click inside the rectangle.
virtual void	regionReady ()
	This function is called when a region is deliberately "finished" by the user.
void	getWorldCoords (Vector< Double > &x, Vector< Double > &y)
	get the world coords of the current rectangular region
void	getLinearCoords (Vector< Double > &x, Vector< Double > &y)
	get the linear coords of the current rectangular region

Detailed Description

WorldCanvas event-based elliptical region drawer.

Intended use:

Public interface

Review Status

<prerequisites> MWCEllipseTool </prerequisites>

Etymology

MWCETRegion stands for MultiWorldCanvas Ellipse Tool Region

Synopsis

This class finalises the functionality in MWCEllipseTool to implement event-based drawing of elliptical regions on a WorldCanvas. Double clicking inside the constructed ellipse emits the region, whilst pressing Escape cancels the region.

Example

Motivation

Elliptical regions are very common regions, and constructing them visually can be very efficient.

To Do

Nothing known

Definition at line 78 of file MWCETRegion.h.

Constructor & Destructor Documentation

casa::MWCETRegion::MWCETRegion ( Display::KeySym keysym = Display::K_Pointer_Button2 )

Constructor.

virtual casa::MWCETRegion::~MWCETRegion ( ) [virtual]

Destructor.

Member Function Documentation

virtual void casa::MWCETRegion::doubleInside ( ) [protected, virtual]

Handle double-click inside the rectangle.

Invokes regionReady().

Reimplemented from casa::MWCEllipseTool.

void casa::MWCETRegion::getLinearCoords	(	Vector< Double > &	x,
		Vector< Double > &	y
	)		`[protected]`

get the linear coords of the current rectangular region

void casa::MWCETRegion::getWorldCoords	(	Vector< Double > &	x,
		Vector< Double > &	y
	)		`[protected]`

get the world coords of the current rectangular region

virtual void casa::MWCETRegion::handleEvent ( DisplayEvent & ev ) [virtual]

handle events, via new-style interface.

Currently just for reset event.

Reimplemented from casa::DisplayEH.

virtual void casa::MWCETRegion::regionReady ( ) [inline, protected, virtual]

This function is called when a region is deliberately "finished" by the user.

It can be implemented to do further actions, such as report the region to the application

Reimplemented in casa::QtOldELRegion.

Definition at line 99 of file MWCETRegion.h.

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

code/display/DisplayEvents/MWCETRegion.h

Public Member Functions

Protected Member Functions