OSRenderBitmap Class Reference

Special version of a RenderRegion that can render into a bitmap. For now it is monochrome only. It can also be asked if it is 'blank' - this can be used for proper click detection. If USE_GDRAW_BITMAP is defined then this class is much reduced, its functionality being subsumed by GRenderClick. More...

#include <rendbits.h>

Inheritance diagram for OSRenderBitmap:

List of all members.

Public Member Functions
	OSRenderBitmap ()
Static Public Member Functions
static RenderRegion *	Create (DocRect, Matrix, FIXED16, RenderType rType=RENDERTYPE_MONOBITMAP)
	Creates a region of type OSRenderBitmap (GDI) or GRenderClick (GDraw). Creates a region of type OSRenderBitmap (GDI) or GRenderClick (GDraw).
static BitmapContents	GetContents (RenderRegion *, BOOL)
	To investigate whether anything has been rendered into a bitmap-based render region.
static void	DebugMe (RenderRegion *, INT32)
	Dupms the current bitmap onto the current view window, so we can see what is going on.

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Detailed Description

Special version of a RenderRegion that can render into a bitmap. For now it is monochrome only. It can also be asked if it is 'blank' - this can be used for proper click detection. If USE_GDRAW_BITMAP is defined then this class is much reduced, its functionality being subsumed by GRenderClick.

Author:

Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>

Date:

15/11/93

Definition at line 129 of file rendbits.h.

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Constructor & Destructor Documentation

OSRenderBitmap::OSRenderBitmap (   )

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Member Function Documentation

RenderRegion * OSRenderBitmap::Create (  DocRect  Rect, Matrix  ConvertMatrix, FIXED16  Scale, RenderType  rType = RENDERTYPE_MONOBITMAP )  [static]

Creates a region of type OSRenderBitmap (GDI) or GRenderClick (GDraw). Creates a region of type OSRenderBitmap (GDI) or GRenderClick (GDraw). Author: Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com> Date: 18/11/93 Parameters: None  [INPUTS] None  [OUTPUTS] Returns: None See also: OSRenderRegion::Create Definition at line 171 of file rendbits.cpp. { switch (rType) { case RENDERTYPE_MONOBITMAP: // TRACE(_T("Creating MONOBITMAP region (%d, %d) - (%d, %d) GRenderClick\n"), Rect.lo.x, Rect.lo.y, Rect.hi.x, Rect.hi.y); return new GRenderClick( Rect, ConvertMatrix, Scale, 1, 0.0 ); break; case RENDERTYPE_COLOURBITMAP: // TRACE(_T("Creating COLOURBITMAP region (%d, %d) - (%d, %d) GRenderClickColour\n"), Rect.lo.x, Rect.lo.y, Rect.hi.x, Rect.hi.y); return new GRenderClickColour( Rect, ConvertMatrix, Scale, 32, 0.0 ); break; case RENDERTYPE_HITDETECT: // TRACE(_T("Creating HITDETECT region (%d, %d) - (%d, %d) GRenderClickColourNoPaper\n"), Rect.lo.x, Rect.lo.y, Rect.hi.x, Rect.hi.y); return new GRenderClickColourNoPaper( Rect, ConvertMatrix, Scale, 32, 0.0 ); // BODGE TEST! DO NOT RELEASE! // return new GRenderClick( Rect, ConvertMatrix, Scale, 1, 0.0 ); break; default: ENSURE(FALSE, "Invalid RenderType passed to OSRenderBitmap::Create"); return NULL; } return NULL; }

void OSRenderBitmap::DebugMe (  RenderRegion *  pRegion, INT32  Stretch )  [static]

Dupms the current bitmap onto the current view window, so we can see what is going on. Author: Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com> Date: 21/11/93 Parameters: How  much you want the image stretched by [INPUTS] -  [OUTPUTS] Returns: - Errors: - Scope: Public static Definition at line 249 of file rendbits.cpp. { if (pRegion->IsKindOf( CC_RUNTIME_CLASS(GRenderClick) ) ) ((RealClickClass*)pRegion)->DebugMe(Stretch); else ERROR3("Wrong class for DebugMe"); }

BitmapContents OSRenderBitmap::GetContents (  RenderRegion *  pRegion, BOOL  JustMiddle )  [static]

To investigate whether anything has been rendered into a bitmap-based render region. Author: Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com> Date: 18/11/93 Parameters: A  render region which must have been created with RenderOnTop(MONOBITMAP). [INPUTS] if justmiddle is TRUE, only checks on the centre pixel will be done (which is faster). None  [OUTPUTS] Returns: BITMAPCONTENTS_CENTRE if centre pixel is set, _ANY if any pixel is set, _NONE if none and _ERROR if failed for some reason. Errors: Will ENSURE if NULL render region, if it is not really a OSRenderBitmap. Scope: Static Definition at line 222 of file rendbits.cpp. { ERROR2IF( pRegion==NULL, BITMAPCONTENTS_ERROR, "NULL pRegion" ); ERROR2IF( !pRegion->IsKindOf(CC_RUNTIME_CLASS(GRenderClick)), BITMAPCONTENTS_ERROR, "Wrong class" ); RealClickClass *pBitmap = (RealClickClass*)pRegion; // safe to cast now return pBitmap->GetContents( JustMiddle ); // then use member fn }

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

• wxOil/rendbits.h (r1785/r1282)
• wxOil/rendbits.cpp (r1785/r1282)

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