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Mac Format 1994 October
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Macformat17.cdr
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Shareware City
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shutdown-fx-20-c
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Fade module ƒ
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◊ Fades ƒ
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Halves scroll fade.c
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C/C++ Source or Header
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1994-07-11
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68 lines
/**********************************************************************\
File: Halves scroll fade.c
Purpose: Graphic effect to fade main screen to solid pattern.
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 main(Rect boundsRect, Pattern *thePattern);
/* 2 regions, split down the middle of the screen. Scroll the screen up in one
region and down in the other. */
pascal short main(Rect boundsRect, Pattern *thePattern)
{
int x;
Rect topdest, bottomdest;
Rect topscrollsource, bottomscrollsource;
int cx;
int BoxSize;
BoxSize=theWindowHeight/25;
cx = boundsRect.left + theWindowWidth / 2;
topscrollsource=bottomscrollsource=topdest=bottomdest=boundsRect;
topscrollsource.right=bottomscrollsource.left=topdest.right=bottomdest.left=cx;
topdest.bottom=topdest.top+BoxSize;
bottomdest.top=bottomdest.bottom-BoxSize;
for(x = theWindowHeight - BoxSize; x >= 0; x -= BoxSize)
{
StartTiming();
ScrollTheRect(&topscrollsource, 0, BoxSize, 0L);
FillRect(&topdest, *thePattern);
ScrollTheRect(&bottomscrollsource, 0, -BoxSize, 0L);
FillRect(&bottomdest, *thePattern);
TimeCorrection(CorrectTime);
}
FillRect(&boundsRect, *thePattern);
return 0;
}