GBlitRegions Class Reference

Blitting region helper class, can calculate the right source and dest rectangles for a blt operation including propagating clipping back to the source rect. More...

#include <Gdc2.h>

List of all members.

Public Member Functions
	GBlitRegions (GSurface *Dst, int x1, int y1, GSurface *Src, GRect *SrcRc=0)
	Calculate the rectangles.
bool	Valid ()
	Returns non-zero if both clipped rectangles are valid.
Public Attributes
GRect	SrcClip
	Clipped blit region in destination co-ords.
GRect	DstClip
	Clipped blit region in source co-ords.

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Detailed Description

Blitting region helper class, can calculate the right source and dest rectangles for a blt operation including propagating clipping back to the source rect.

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Constructor & Destructor Documentation

GBlitRegions::GBlitRegions	(	GSurface *	Dst,
		int	x1,
		int	y1,
		GSurface *	Src,
		GRect *	SrcRc = 0
	)			[inline]

Calculate the rectangles.

Parameters:

Dst	Destination surface
x1	Destination blt x offset
y1	Destination blt y offset
Src	Source surface
SrcRc	[Optional] Crop the source surface first, else whole surface is blt

References GRect::Bound(), DstClip, GRect::Offset(), GRect::Set(), SrcClip, GSurface::X(), GRect::x1, GRect::x2, GSurface::Y(), GRect::y1, GRect::y2, and GRect::ZOff().

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

• Gdc2.h