src/clip.h

   1 /*
   2  *                            COPYRIGHT
   3  *
   4  *  PCB, interactive printed circuit board design
   5  *  Copyright (C) 1994,1995,1996 Thomas Nau
   6  *  Copyright (C) 2004 harry eaton
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  *  Contact addresses for paper mail and Email:
  23  *  Thomas Nau, Schlehenweg 15, 88471 Baustetten, Germany
  24  *  Thomas.Nau@rz.uni-ulm.de
  25  *
  26  *  RCS: $Id$
  27  */
  28
  29 /* prototypes for inserting points into objects
  30  */
  31
  32 #ifndef __CLIP_INCLUDED__
  33 #define __CLIP_INCLUDED__
  34
  35 #include "global.h"
  36
  37 /* ---------------------------------------------------------------------------
  38  * prototypes
  39  */
  40
  41 /* Clip X,Y to the given bounding box, plus a margin.  Returns TRUE if
  42    there is something left to be drawn.  */
  43 bool ClipLine (double minx, double miny, double maxx, double maxy,
  44                   double *x1, double *y1,
  45                   double *x2, double *y2,
  46                   double margin);
  47
  48 #endif