home *** CD-ROM | disk | FTP | other *** search
- /**********************************************************************\
-
- File: Slide fade reversed.c
-
- Purpose: Graphic effect to fade main window 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 1
- #define theWindowWidth (boundsRect.right-boundsRect.left)
- #define theWindowHeight (boundsRect.bottom-boundsRect.top)
-
- pascal short SlideFadeReversed(Rect boundsRect, Pattern *thePattern);
-
- /* Split the screen into 10 sections, then alternatively scroll left and right,
- starting at the bottom section and working toward the top. */
-
- pascal short SlideFadeReversed(Rect boundsRect, Pattern *thePattern)
- {
- int x, y;
- Rect dest;
- Rect scrollsource;
- int direction;
- int BoxSize, StripSize;
-
- BoxSize=theWindowWidth/25;
- StripSize=theWindowHeight/10;
-
- direction = 0;
- for(y = theWindowHeight-StripSize; y >= 0; y -= StripSize)
- {
- scrollsource = boundsRect;
- scrollsource.top+=y;
- scrollsource.bottom = scrollsource.top + StripSize;
-
- dest = scrollsource;
-
- if(direction == 0)
- {
- dest.right = dest.left + BoxSize;
-
- for(x = boundsRect.right - BoxSize; x >= boundsRect.left; x -= BoxSize)
- {
- StartTiming();
- ScrollTheRect(&scrollsource, BoxSize, 0, 0L);
- FillRect(&dest, *thePattern);
- TimeCorrection(CorrectTime);
- }
- FillRect(&scrollsource, *thePattern);
- }
- else
- {
- dest.left = dest.right - BoxSize;
-
- for(x = boundsRect.left+BoxSize; x <= boundsRect.right; x += BoxSize)
- {
- StartTiming();
- ScrollTheRect(&scrollsource, -BoxSize, 0, 0L);
- FillRect(&dest, *thePattern);
- TimeCorrection(CorrectTime);
- }
- FillRect(&scrollsource, *thePattern);
- }
-
- direction = 1 - direction;
- }
-
- return 0;
- }
-