DtBMPDrawer Class Reference

Qt includes. More...

Inheritance diagram for DtBMPDrawer:

Public Member Functions
	DtBMPDrawer ()
virtual	~DtBMPDrawer ()
virtual bool	draw (QPainter &paint, const DtSymbol *const symbol) const
virtual QSize	calcBBox (const DtSymbol *const symbol) const
	Calculate the drawn size of this symbol.
Public Member Functions inherited from DtBaseSymbolDrawer
	DtBaseSymbolDrawer ()
virtual	~DtBaseSymbolDrawer ()
virtual bool	doDrawing (QPainter &paint, const DtSymbol *const symbol)
	! Initializes any drawing information and then calls internal draw() method
Public Member Functions inherited from DtSymbolDrawer
	DtSymbolDrawer ()
virtual	~DtSymbolDrawer ()
virtual QRect	calcBRect (const DtSymbol *const symbol) const
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.
virtual void	processHiddenSymbolAction (QPainter &paint, const DtSymbol *const symbol)
	Routine to perform even when symbol is hidden.

Static Public Member Functions
static DtSymbolDrawer *	create ()

Protected Member Functions
virtual const QImage *	constructBMP (const DtBMPSymbol &b) const
virtual const QImage *	constructHighlight (const QPixmap *p) const
virtual void	renderBMP (QPainter &paint, const DtBMPSymbol &symbol, const QPixmap *pix) const
virtual void	applyGhosting (QImage *p) const
	Adds a pixelation mask to the pixmap.
virtual const QPixmap *	insertPix (const DtBMPSymbol &bmpSymbol, const QImage *pix) const
	Insert pixmap into cache.
virtual const QPixmap *	insertPix (const QString &key, const QImage *pix) const
	Insert pixmap into cache.
virtual const QPixmap *	insertHighlight (const DtBMPSymbol &bmpSymbol, const QImage *pix) const
	Insert pixmap into cache.
virtual const QPixmap *	lookupPix (const DtBMPSymbol &bmpSymbol) const
	Find pixmap corresponding to symbol in cache.
virtual const QPixmap *	lookupHighlight (const DtBMPSymbol &bmpSymbol) const
	Find pixmap corresponding to symbol in cache.
Protected Member Functions inherited from DtBaseSymbolDrawer
virtual QRgb	opaqueColor () const
	! Returns color that will be ignored during transparent draw
Protected Member Functions inherited from DtSymbolDrawer
	DtSymbolDrawer (const DtSymbolDrawer &orig)
	Protected so not used. Conceptually class is a singleton.
DtSymbolDrawer &	operator= (const DtSymbolDrawer &orig)
	Protected so not used. Conceptually class is a singleton.

Protected Attributes
QCache< QString, const QPixmap >	myCache
	Mutable since cache is for optimization purposes only.
QCache< QString, const QPixmap >	myHighlightCache

Private Member Functions
	DtBMPDrawer (const DtBMPDrawer &orig)
DtBMPDrawer &	operator= (const DtBMPDrawer &orig)

Additional Inherited Members
Static Protected Attributes inherited from DtSymbolDrawer
static double	gDrawScalingFactor
static QColor	theHighlightColor

Detailed Description

Qt includes.

Concrete class which draws bitmaps., This should be connected to the DtBMPSymbol in order to actually draw

Constructor & Destructor Documentation

DtBMPDrawer::DtBMPDrawer

(

)

virtual DtBMPDrawer::~DtBMPDrawer ( )

virtual

DtBMPDrawer::DtBMPDrawer ( const DtBMPDrawer &  orig )

private

Member Function Documentation

virtual bool DtBMPDrawer::draw ( QPainter &  paint, const DtSymbol *const  symbol  ) const

virtual

Implements DtSymbolDrawer.

virtual QSize DtBMPDrawer::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.

static DtSymbolDrawer* DtBMPDrawer::create ( )

static

virtual const QImage* DtBMPDrawer::constructBMP ( const DtBMPSymbol &  b ) const

protectedvirtual

virtual const QImage* DtBMPDrawer::constructHighlight ( const QPixmap *  p ) const

protectedvirtual

virtual void DtBMPDrawer::renderBMP ( QPainter &  paint, const DtBMPSymbol &  symbol, const QPixmap *  pix  ) const

protectedvirtual

virtual void DtBMPDrawer::applyGhosting ( QImage *  p ) const

protectedvirtual

Adds a pixelation mask to the pixmap.

virtual const QPixmap* DtBMPDrawer::insertPix ( const DtBMPSymbol &  bmpSymbol, const QImage *  pix  ) const

protectedvirtual

Insert pixmap into cache.

virtual const QPixmap* DtBMPDrawer::insertPix ( const QString &  key, const QImage *  pix  ) const

protectedvirtual

Insert pixmap into cache.

virtual const QPixmap* DtBMPDrawer::insertHighlight ( const DtBMPSymbol &  bmpSymbol, const QImage *  pix  ) const

protectedvirtual

Insert pixmap into cache.

virtual const QPixmap* DtBMPDrawer::lookupPix ( const DtBMPSymbol &  bmpSymbol ) const

protectedvirtual

Find pixmap corresponding to symbol in cache.

virtual const QPixmap* DtBMPDrawer::lookupHighlight ( const DtBMPSymbol &  bmpSymbol ) const

protectedvirtual

Find pixmap corresponding to symbol in cache.

DtBMPDrawer& DtBMPDrawer::operator= ( const DtBMPDrawer &  orig )

private

Member Data Documentation

QCache<QString, const QPixmap> DtBMPDrawer::myCache

mutableprotected

Mutable since cache is for optimization purposes only.

Conceptually there should be no difference in const between the first and second time a symbol is drawn.

QCache<QString, const QPixmap> DtBMPDrawer::myHighlightCache

mutableprotected

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

• /exports/nfedora7-1/nightly/docs/vrforcesDevelopment.tot/include/symbolDrawer/bmpDrawer.h