Multi WorldCanvas event-based ruler line tool. More...

#include <MWCRulerlineTool.h>

Inheritance diagram for casa::MWCRulerlineTool:

Public Member Functions
	MWCRulerlineTool (Display::KeySym keysym=Display::K_Pointer_Button1, Bool scrollingAllowed=True)
	Constructor.
virtual	~MWCRulerlineTool ()
	Destructor.
virtual void	reset (Bool skipRefresh=False)
	Reset to non-showing, non-active.
Protected Member Functions
virtual void	keyPressed (const WCPositionEvent &)
	Functions called by the base class mouse event handling operators - these maintain the state of the pan vector and order it to be drawn via refresh().
virtual void	keyReleased (const WCPositionEvent &)
virtual void	moved (const WCMotionEvent &, const viewer::region::region_list_type &)
virtual void	draw (const WCRefreshEvent &, const viewer::region::region_list_type &)
	draw the distance vector on a PixelCanvas.
Private Attributes
Bool	itsActive
	Should we respond to mouse movement and button release? Should we draw? Set when the button is pushed in one of the tool's WCs.
Bool	itsEqualUnits
	are the units in x and y identical?
Int	itsX1
	pixel coordinates of the pan vector.
Int	itsY1
Int	itsX2
Int	itsY2
Int	itsX3
Int	itsY3
Int	itsRaIndex
	axis index for RA and DEC
Int	itsDecIndex

Detailed Description

Multi WorldCanvas event-based ruler line tool.

Intended use:

Public interface

Review Status

Date Reviewed:: yyyy/mm/dd

Etymology

MWCRulerlineTool stands for MultiWorldCanvas ruler line Tool

Synopsis

Example

Motivation

A nice little tool to measure distances on the screen.

Definition at line 69 of file MWCRulerlineTool.h.

Constructor & Destructor Documentation

casa::MWCRulerlineTool::MWCRulerlineTool	(	Display::KeySym	keysym = `Display::K_Pointer_Button1`,
		Bool	scrollingAllowed = `True`
	)

Constructor.

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

Destructor.

Member Function Documentation

virtual void casa::MWCRulerlineTool::draw	(	const WCRefreshEvent &	,
		const viewer::region::region_list_type &
	)		`[protected, virtual]`

draw the distance vector on a PixelCanvas.

(To be called only by the base class refresh event handler).

Reimplemented from casa::MultiWCTool.

virtual void casa::MWCRulerlineTool::keyPressed ( const WCPositionEvent & ) [protected, virtual]

Functions called by the base class mouse event handling operators - these maintain the state of the pan vector and order it to be drawn via refresh().

Reimplemented from casa::MultiWCTool.

virtual void casa::MWCRulerlineTool::keyReleased ( const WCPositionEvent & ) [protected, virtual]

Reimplemented from casa::MultiWCTool.