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Full scroll right.c
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1994-04-19
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/**********************************************************************\
File: Full scroll right.c
Purpose: Graphic effect from offscreen bitmap to main window (on
screen). See comments below for more description.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program in a file named "GNU General Public License".
If not, write to the Free Software Foundation, 675 Mass Ave,
Cambridge, MA 02139, USA.
\**********************************************************************/
#include "timing.h"
#define CorrectTime 3
#define theWindowHeight (boundsRect.bottom-boundsRect.top)
#define theWindowWidth (boundsRect.right-boundsRect.left)
pascal short FullScrollLR(GrafPtr sourceGrafPtr, GrafPtr destGrafPtr, Rect boundsRect);
/* Take the whole screen - the righthand strip; move it into the whole screen
shifted right by BoxSize; take the righthand strip of the source window and
move it into the lefthand strip of the dest. */
pascal short FullScrollLR(GrafPtr sourceGrafPtr, GrafPtr destGrafPtr, Rect boundsRect)
{
int x, y;
Rect theRect, dest;
int BoxSize;
BoxSize=theWindowWidth/25;
dest = boundsRect;
dest.right=dest.left+BoxSize; /* lefthand strip */
SetRect(&theRect, boundsRect.right-BoxSize, boundsRect.top, boundsRect.right, boundsRect.bottom);
for(x = theWindowWidth - BoxSize; x >= 0; x -= BoxSize)
{
StartTiming();
ScrollTheRect(&boundsRect, BoxSize, 0, 0L);
CopyBits(&(sourceGrafPtr->portBits), &(destGrafPtr->portBits),
&theRect, &dest, 0, 0L);
theRect.right-=BoxSize;
theRect.left-=BoxSize;
TimeCorrection(CorrectTime);
}
CopyBits(&(sourceGrafPtr->portBits), &(destGrafPtr->portBits),
&boundsRect, &boundsRect, 0, 0L);
return 0;
}