DtCompositeDrawer Class Reference

Qt includes. More...

Inheritance diagram for DtCompositeDrawer:

List of all members.

Public Member Functions
	DtCompositeDrawer ()
virtual	~DtCompositeDrawer ()
virtual bool	draw (QPainter &paint, const DtSymbol *const symbol) const
	draws the specified symbol on a device.
virtual QSize	calcBBox (const DtSymbol *const symbol) const
	Calculate the drawn size of this symbol.
virtual void	addDrawer (DtSymbolDrawer *drawer)
virtual void	removeDrawer (DtSymbolDrawer *drawer)
virtual DtPtrQList < DtSymbolDrawer * > *	drawers ()
void	destroyDrawer (DtSymbolDrawer *, bool add=true)
	Call this routine to add a composite drawer to destroy that is part of this drawer when this drawer is destroyed.
Protected Member Functions
virtual bool	forceUpdate (const DtSymbol *const symbol) const
	Override if your class wants to force a redraw of this item regardless of performance enhancement state.
virtual bool	endTransparentDraw (QPainter &paint, const DtSymbol *const symbol) const
	Called after transparent draw is finished if symbol wants to draw transparently.
Protected Attributes
DtPtrQList< DtSymbolDrawer * >	mySymbolDrawers
DtPtrQList< DtSymbolDrawer * >	myDrawersToDestroy
Private Member Functions
	DtCompositeDrawer (const DtCompositeDrawer &orig)
DtCompositeDrawer &	operator= (const DtCompositeDrawer &orig)

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Detailed Description

Qt includes.

This class will maintain a collection of drawers that will be called in turn to draw the specified symbol

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Constructor & Destructor Documentation

DtCompositeDrawer::DtCompositeDrawer

(

)

virtual DtCompositeDrawer::~DtCompositeDrawer

(

)

[virtual]

DtCompositeDrawer::DtCompositeDrawer

(

const DtCompositeDrawer &

orig

)

[private]

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Member Function Documentation

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

draws the specified symbol on a device.

The symbol must be of a DtLineSymbol type or nothing will be drawn.

Returns:

true if successful, false otherwise.

Implements DtSymbolDrawer.

virtual QSize DtCompositeDrawer::calcBBox

(

const DtSymbol *const

symbol

)

const [virtual]

Calculate the drawn size of this symbol.

The symbol must be of a type this drawer can recognize.

Implements DtSymbolDrawer.

virtual void DtCompositeDrawer::addDrawer

(

DtSymbolDrawer *

drawer

)

[virtual]

virtual void DtCompositeDrawer::removeDrawer

(

DtSymbolDrawer *

drawer

)

[virtual]

virtual DtPtrQList<DtSymbolDrawer*>* DtCompositeDrawer::drawers

(

)

[virtual]

void DtCompositeDrawer::destroyDrawer	(	DtSymbolDrawer *	d,
		bool	add = true
	)		[inline]

Call this routine to add a composite drawer to destroy that is part of this drawer when this drawer is destroyed.

If add is false, removes the drawer from the destroyed list

References DtPtrQList< T >::findRef(), myDrawersToDestroy, and DtPtrQList< T >::remove().

virtual bool DtCompositeDrawer::forceUpdate

(

const DtSymbol *const

symbol

)

const [protected, virtual]

Override if your class wants to force a redraw of this item regardless of performance enhancement state.

By default this returns false

Reimplemented from DtSymbolDrawer.

virtual bool DtCompositeDrawer::endTransparentDraw	(	QPainter &	paint,
		const DtSymbol *const	symbol
	)		const [protected, virtual]

Called after transparent draw is finished if symbol wants to draw transparently.

Noop for this drawer

Reimplemented from DtSymbolDrawer.

DtCompositeDrawer& DtCompositeDrawer::operator=

(

const DtCompositeDrawer &

orig

)

[private]

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Member Data Documentation

DtPtrQList<DtSymbolDrawer*> DtCompositeDrawer::mySymbolDrawers [protected]

DtPtrQList<DtSymbolDrawer*> DtCompositeDrawer::myDrawersToDestroy [protected]

Referenced by destroyDrawer().

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

• include/symbolDrawer/compositeDrawer.h