DtNullDrawer Class Reference

class DtNullDrawer: More...

Inheritance diagram for DtNullDrawer:

List of all members.

Public Member Functions
virtual	~DtNullDrawer ()
	DtNullDrawer ()
virtual bool	draw (QPainter &paint, const DtSymbol *const symbol) const
virtual QSize	calcBBox (const DtSymbol *const symbol) const
Static Public Member Functions
static DtSymbolDrawer *	create ()
Protected Member Functions
	DtNullDrawer (const DtNullDrawer &orig)
	Protected since not used. Prefer class to be a singleton.
DtNullDrawer &	operator= (const DtNullDrawer &orig)
	Protected since not used. Prefer class to be a singleton.

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Detailed Description

class DtNullDrawer:

Concrete implementation of DtSymbolDrawer which does nothing. Predominantly intended for testing symbology.

This class has no dependency on qt drawing routines. Thus if (when) we change from Qt to another drawing package, none of the symbol classes will change, just the symboldraw derived classes.

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Constructor & Destructor Documentation

virtual DtNullDrawer::~DtNullDrawer

(

)

[virtual]

DtNullDrawer::DtNullDrawer

(

)

DtNullDrawer::DtNullDrawer

(

const DtNullDrawer &

orig

)

[protected]

Protected since not used. Prefer class to be a singleton.

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Member Function Documentation

virtual bool DtNullDrawer::draw	(	QPainter &	paint,
		const DtSymbol *const	symbol
	)		const [virtual]

Implements DtSymbolDrawer.

virtual QSize DtNullDrawer::calcBBox

(

const DtSymbol *const

symbol

)

const [virtual]

Implements DtSymbolDrawer.

static DtSymbolDrawer* DtNullDrawer::create

(

)

[static]

DtNullDrawer& DtNullDrawer::operator=

(

const DtNullDrawer &

orig

)

[protected]

Protected since not used. Prefer class to be a singleton.

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

• include/symbolDrawerInterface/nullDrawer.h