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- #include "timing.h"
-
- #define CorrectTime 2
- #define theWindowWidth (boundsRect.right-boundsRect.left)
- #define theWindowHeight (boundsRect.bottom-boundsRect.top)
-
- pascal short DiagonalWipe(GrafPtr sourceGrafPtr, GrafPtr destGrafPtr, Rect boundsRect);
-
- /* If you make a long enough region starting at the bottomright corner and
- making a strip down and left of <BoxSize> width, all you have to do is move
- the region up until the entire screen is filled. Dave thinks ideas like
- this should be taken out and shot, but it works. */
-
- pascal short DiagonalWipe(GrafPtr sourceGrafPtr, GrafPtr destGrafPtr, Rect boundsRect)
- {
- short maxmax;
- RgnHandle archie;
- short BoxSize;
- Point zeroPoint;
-
- zeroPoint.h=boundsRect.left;
- zeroPoint.v=boundsRect.top;
-
- BoxSize=theWindowWidth/40;
-
- maxmax=(theWindowWidth>theWindowHeight) ? theWindowWidth : theWindowHeight;
- maxmax+=BoxSize;
- archie=NewRgn();
- OpenRgn();
- MoveTo(boundsRect.right+BoxSize, boundsRect.bottom);
- Line(0,BoxSize);
- Line(-maxmax,maxmax);
- Line(-BoxSize,0);
- Line(maxmax,-maxmax);
- CloseRgn(archie);
-
- do
- {
- StartTiming();
- OffsetRgn(archie,0,-BoxSize);
- CopyBits(&(sourceGrafPtr->portBits),&(destGrafPtr->portBits),
- &boundsRect,&boundsRect,0,archie);
- TimeCorrection(CorrectTime);
- }
- while (!PtInRgn(zeroPoint, archie));
-
- DisposeRgn(archie);
-
- return 0;
- }
-