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- /**
- ** PATFBOX.C
- **
- ** Copyright (C) 1992, Csaba Biegl
- ** 820 Stirrup Dr, Nashville, TN, 37221
- ** csaba@vuse.vanderbilt.edu
- **
- ** This file is distributed under the terms listed in the document
- ** "copying.cb", available from the author at the address above.
- ** A copy of "copying.cb" should accompany this file; if not, a copy
- ** should be available from where this file was obtained. This file
- ** may not be distributed without a verbatim copy of "copying.cb".
- ** You should also have received a copy of the GNU General Public
- ** License along with this program (it is in the file "copying");
- ** if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- ** Cambridge, MA 02139, USA.
- **
- ** 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.
- **/
-
- #include "grx.h"
- #include "libgrx.h"
- #include "clipping.h"
-
- void GrPatternFilledBox(int x1,int y1,int x2,int y2,GrPattern *p)
- {
- int width,height;
- MOUSE_FLAG;
-
- CLIPBOX(CURC,x1,y1,x2,y2);
- MOUSE_BLOCK(CURC,x1,y1,x2,y2);
- width = x2 - x1 + 1;
- height = y2 - y1 + 1;
- if(!p->gp_ispixmap)
- while(--height >= 0) _GrFillPattern(x1,y1++,width,p);
- else {
- int pwdt = p->gp_pxp_width;
- int phgt = p->gp_pxp_height;
- int xoff = (x1 + CURC->gc_xoffset) % pwdt;
- int yoff = (y1 + CURC->gc_yoffset) % phgt;
- while(height > 0) {
- int fillh = MIN(height,(phgt - yoff));
- int linewdt = width;
- int xpos = x1;
- int xcuroff = xoff;
- while(linewdt > 0) {
- int fillw = MIN(linewdt,(pwdt - xcuroff));
- _GrPixCopy(CURC,PIX_ADDR(CURC,xpos,y1),
- (GC *)(&p->gp_pxp_source),PIX_ADDR(&p->gp_pxp_source,xcuroff,yoff),
- fillw,fillh,p->gp_pxp_oper
- );
- linewdt -= fillw;
- xpos += fillw;
- xcuroff = 0;
- }
- height -= fillh;
- y1 += fillh;
- yoff = 0;
- }
- }
- MOUSE_UNBLOCK();
- }
-