OpenGl_PrinterContext Class Reference

Class provides specific information for redrawing view to offscreen buffer on printing. The information is: projection matrixes for tiling, scaling factors for text/markers and layer viewport dimensions. The OpenGl_PrinterContext class allows to have only one global instance that can be accessed by GetPrinterContext() during printing operation. The class instance can be created only by call_togl_print().

#include <OpenGl_PrinterContext.hxx>

Inheritance diagram for OpenGl_PrinterContext:

Public Member Functions
const TColStd_Array2OfReal &	GetProjTransformation ()
	Get view projection transformation matrix.
void	GetProjTransformation (GLfloat theMatrix[16])
	Get view projection transformation matrix.
void	GetScale (GLfloat &theScaleX, GLfloat &theScaleY)
	Get text/markers scale factor.
void	GetLayerViewport (GLsizei &theViewportX, GLsizei &theViewportY)
	Get layer viewport dimensions.
Static Public Member Functions
static OpenGl_PrinterContext *	GetPrinterContext (GLCONTEXT theCtx)
	Get the PrinterContext instance assigned for OpenGl context. Return NULL, if there is no current printing operation and there is no assigned instance for "theCtx" OpenGl context.
Friends
Standard_Boolean	call_togl_print (CALL_DEF_VIEW *, CALL_DEF_LAYER *, CALL_DEF_LAYER *, const Aspect_Drawable, const int, const char *, const int, const float)

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Member Function Documentation

void OpenGl_PrinterContext::GetLayerViewport	(	GLsizei &	theViewportX,
		GLsizei &	theViewportY
	)		[inline]

static OpenGl_PrinterContext* OpenGl_PrinterContext::GetPrinterContext

(

GLCONTEXT

theCtx

)

[static]

const TColStd_Array2OfReal& OpenGl_PrinterContext::GetProjTransformation

(

)

[inline]

void OpenGl_PrinterContext::GetProjTransformation

(

GLfloat

theMatrix[16]

)

void OpenGl_PrinterContext::GetScale	(	GLfloat &	theScaleX,
		GLfloat &	theScaleY
	)		[inline]

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Friends And Related Function Documentation

Standard_Boolean call_togl_print	(	CALL_DEF_VIEW *	,
		CALL_DEF_LAYER *	,
		CALL_DEF_LAYER *	,
		const Aspect_Drawable	,
		const int	,
		const char *	,
		const int	,
		const float
	)		[friend]

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

• OpenGl_PrinterContext.hxx