casa::DisplayMethod Class Reference

Base class for drawing a particular element (view) of a DisplayData. More...

#include <DisplayMethod.h>

Inheritance diagram for casa::DisplayMethod:

Public Member Functions
	DisplayMethod (DisplayData *parentDisplayData)
	Constructor. More...
virtual	~DisplayMethod ()
	Destructor. More...
virtual void	draw (Display::RefreshReason reason, WorldCanvasHolder &wcHolder)=0
	Draw on the provided WorldCanvasHolder. More...
virtual void	cleanup ()
	clear drawlist state. More...
void	addRestriction (Attribute &newAt, casacore::Bool permanent)
	Set & remove restrictions. More...
void	addRestrictions (AttributeBuffer &newBuf)
void	setRestriction (Attribute &newAt)
void	setRestrictions (AttributeBuffer &newBuf)
void	removeRestriction (const casacore::String &name)
casacore::Bool	existRestriction (const casacore::String &name)
void	clearRestrictions ()
casacore::Bool	matches (Attribute &at)
	match restriction More...
casacore::Bool	matches (AttributeBuffer &atBuf)

Protected Member Functions
	DisplayMethod ()
	(Required) default constructor. More...
	DisplayMethod (const DisplayMethod &other)
	(Required) copy constructor. More...
void	operator= (const DisplayMethod &other)
	(Required) copy assignment. More...
DisplayData *	parentDisplayData ()
	Return the parent DisplayData. More...

Protected Attributes
AttributeBuffer	restrictions

Private Attributes
DisplayData *	itsParentDisplayData

Friends
class	DisplayData
	Allow DisplayData objects to find out about restrictions in DisplayMethod elements... More...

Detailed Description

Base class for drawing a particular element (view) of a DisplayData.

Synopsis

This base class defines an interface for drawing a single view of a DisplayData object. The fundamental idea is that a DisplayData class will manage one or more DisplayMethod objects, and request the individual objects to draw as necessary.

Definition at line 56 of file DisplayMethod.h.

Constructor & Destructor Documentation

casa::DisplayMethod::DisplayMethod

(

DisplayData *

parentDisplayData

)

Constructor.

DisplayMethods need to know who their parent DisplayData is.

virtual casa::DisplayMethod::~DisplayMethod ( )

virtual

Destructor.

casa::DisplayMethod::DisplayMethod ( )

protected

(Required) default constructor.

casa::DisplayMethod::DisplayMethod ( const DisplayMethod &  other )

protected

(Required) copy constructor.

Member Function Documentation

void casa::DisplayMethod::addRestriction	(	Attribute &	newAt,
		casacore::Bool	permanent
	)

Set & remove restrictions.

void casa::DisplayMethod::addRestrictions

(

AttributeBuffer &

newBuf

)

virtual void casa::DisplayMethod::cleanup ( )

virtual

clear drawlist state.

dk note 11/03: Only used by the PrincipleAxesDM branch, where the implementation has been moved. Implementation should remain null on the CachingDD/DM branch, which uses different interface (purgeCache) and state for this.

Reimplemented in casa::WedgeDM, casa::TblAsXYDM, casa::PrincipalAxesDM, casa::TblAsRasterDM, casa::TblAsContourDM, casa::Histogram2dDM, casa::Profile2dDM, casa::SkyCatOverlayDM, casa::DrawingDisplayMethod, casa::AxesDisplayMethod, and casa::WorldAxesDM.

void casa::DisplayMethod::clearRestrictions

(

)

virtual void casa::DisplayMethod::draw ( Display::RefreshReason  reason, WorldCanvasHolder &  wcHolder  )

pure virtual

Draw on the provided WorldCanvasHolder.

Implemented in casa::CachingDisplayMethod, and casa::PrincipalAxesDM.

casacore::Bool casa::DisplayMethod::existRestriction

(

const casacore::String &

name

)

casacore::Bool casa::DisplayMethod::matches

(

Attribute &

at

)

match restriction

casacore::Bool casa::DisplayMethod::matches

(

AttributeBuffer &

atBuf

)

void casa::DisplayMethod::operator= ( const DisplayMethod &  other )

protected

(Required) copy assignment.

DisplayData* casa::DisplayMethod::parentDisplayData ( )

inlineprotected

Return the parent DisplayData.

Definition at line 113 of file DisplayMethod.h.

References itsParentDisplayData.

Referenced by casa::MSAsRasterDM::drawIntoList().

void casa::DisplayMethod::removeRestriction

(

const casacore::String &

name

)

void casa::DisplayMethod::setRestriction

(

Attribute &

newAt

)

void casa::DisplayMethod::setRestrictions

(

AttributeBuffer &

newBuf

)

Friends And Related Function Documentation

friend class DisplayData

friend

Allow DisplayData objects to find out about restrictions in DisplayMethod elements...

Definition at line 97 of file DisplayMethod.h.

Member Data Documentation

DisplayData* casa::DisplayMethod::itsParentDisplayData

private

Definition at line 119 of file DisplayMethod.h.

Referenced by parentDisplayData().

AttributeBuffer casa::DisplayMethod::restrictions

protected

Definition at line 101 of file DisplayMethod.h.

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

• casa/code/display/DisplayDatas/DisplayMethod.h