home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Mac Format 1994 October
/
Macformat17.cdr
/
Shareware City
/
Developers
/
shutdown-fx-20-c
/
Fade module ƒ
/
◊ Reversed fades ƒ
/
Diagonal fade down-right.c
< prev
next >
Wrap
C/C++ Source or Header
|
1994-07-11
|
2KB
|
80 lines
/**********************************************************************\
File: Diagonal fade down-right.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 2
#define theWindowWidth (boundsRect.right-boundsRect.left)
#define theWindowHeight (boundsRect.bottom-boundsRect.top)
pascal short main(Rect boundsRect, Pattern *thePattern);
/* If you make a long enough region starting at the top-left corner and
making a strip up and right of <BoxSize> width, all you have to do is move
the region down until the entire screen is filled. Dave thinks ideas like
this should be taken out and shot, but it works. */
pascal short main(Rect boundsRect, Pattern *thePattern)
{
int maxmax;
RgnHandle archie, boundsRgn, sectrgn;
int BoxSize;
Point zeroPoint;
zeroPoint.h=boundsRect.right;
zeroPoint.v=boundsRect.bottom;
BoxSize=theWindowWidth/40;
maxmax=(theWindowWidth>theWindowHeight) ? theWindowWidth : theWindowHeight;
maxmax+=BoxSize;
boundsRgn=NewRgn();
SetRectRgn(boundsRgn, boundsRect.left, boundsRect.top, boundsRect.right, boundsRect.bottom);
sectrgn=NewRgn();
archie=NewRgn();
OpenRgn();
MoveTo(boundsRect.left-BoxSize, boundsRect.top);
Line(0,-BoxSize);
Line(maxmax,-maxmax);
Line(BoxSize,0);
Line(-maxmax,maxmax);
CloseRgn(archie);
do
{
StartTiming();
OffsetRgn(archie,0,BoxSize);
SectRgn(archie, boundsRgn, sectrgn);
FillRgn(sectrgn, *thePattern);
TimeCorrection(CorrectTime);
}
while (!PtInRgn(zeroPoint, archie));
DisposeRgn(archie);
DisposeRgn(boundsRgn);
DisposeRgn(sectrgn);
return 0;
}