IGraphicsContext Class Reference

#include <IGraphicsContext.h>

Inheritance diagram for IGraphicsContext:

Public Member Functions
virtual SysRgn	GetClip () const =0
virtual SysRgn	GetOriginAdjustedClip () const =0
virtual SysPort	GetSysPort () const =0
virtual IViewPort *	GetViewPort () const =0
virtual const PMMatrix &	GetContentToViewTransform () const =0
virtual const PMMatrix &	GetViewToContentTransform () const =0
virtual IControlView *	GetView () const =0
virtual bool16	IsCurrent () const =0
virtual dvaui::drawbot::Drawbot *	GetDrawbot () const =0

Detailed Description

IGraphicsContext is a data container interface which is passed into drawing code It contains the target viewport, transform, and cliprgn for drawing. It not a Shuksan object model interface, but simply an abstract interface from which implementation classes derive.

See Also

IViewPort

IControlView

Member Function Documentation

virtual SysRgn IGraphicsContext::GetClip ( ) const

pure virtual

Gets the clipping region for this context

Returns

the clipping region as a SysRgn

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, ShellGraphicsContext, DVOffscreenGraphicsContext, and NonMarkingAGMGraphicsContext.

virtual const PMMatrix& IGraphicsContext::GetContentToViewTransform ( ) const

pure virtual

Gets the transform matrix for this context

See Also

PMMatrix

IGraphicsContext::GetInverseTransform

Returns

the transform matrix

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, DVOffscreenGraphicsContext, ShellGraphicsContext, and NonMarkingAGMGraphicsContext.

virtual dvaui::drawbot::Drawbot* IGraphicsContext::GetDrawbot ( ) const

pure virtual

Gets the Drawbot for this context

Returns

the Drawbot*

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, DVOffscreenGraphicsContext, ShellGraphicsContext, and NonMarkingAGMGraphicsContext.

virtual SysRgn IGraphicsContext::GetOriginAdjustedClip ( ) const

pure virtual

Gets the origin-adjusted clipping region for this context

Returns

the origin-adjusted clipping region as a SysRgn

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, ShellGraphicsContext, DVOffscreenGraphicsContext, and NonMarkingAGMGraphicsContext.

virtual SysPort IGraphicsContext::GetSysPort ( ) const

pure virtual

Gets the SysPort for this context

Returns

the SysPort

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, DVOffscreenGraphicsContext, ShellGraphicsContext, and NonMarkingAGMGraphicsContext.

virtual IControlView* IGraphicsContext::GetView ( ) const

pure virtual

Gets the control view for this context

See Also

IControlView

Returns

the control view

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, DVOffscreenGraphicsContext, ShellGraphicsContext, and NonMarkingAGMGraphicsContext.

virtual IViewPort* IGraphicsContext::GetViewPort ( ) const

pure virtual

Gets the view port for this context

See Also

IViewPort

Returns

the view port

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, DVOffscreenGraphicsContext, ShellGraphicsContext, and NonMarkingAGMGraphicsContext.

virtual const PMMatrix& IGraphicsContext::GetViewToContentTransform ( ) const

pure virtual

Gets the inverse transform matrix for this context

See Also

PMMatrix

IGraphicsContext::GetTransform

Returns

the inverse transform matrix

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, DVOffscreenGraphicsContext, ShellGraphicsContext, and NonMarkingAGMGraphicsContext.

virtual bool16 IGraphicsContext::IsCurrent ( ) const

pure virtual

Returns kTrue if this context is current, else kFalse

See Also

IGraphicsContextArbitrator

Returns

whether this context is current

Implemented in AGMGraphicsContextWith< AcquireCoordSys, AcquireClip >, AGMGraphicsContextWith< DVAGMAcquireCoordSys, DVAGMAcquireClip >, DVOffscreenGraphicsContext, ShellGraphicsContext, and NonMarkingAGMGraphicsContext.