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  1. /*
  2.         This file is part of a common library
  3.     Copyright (C) 1990-2006 Toby Thain, toby@telegraphics.com.au
  4.  
  5.     This program is free software; you can redistribute it and/or modify
  6.     it under the terms of the GNU General Public License as published by  
  7.     the Free Software Foundation; either version 2 of the License, or
  8.     (at your option) any later version.
  9.  
  10.     This program is distributed in the hope that it will be useful,
  11.     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12.     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13.     GNU General Public License for more details.
  14.  
  15.     You should have received a copy of the GNU General Public License  
  16.     along with this program; if not, write to the Free Software
  17.     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18. */
  19.  
  20. #include <quickdraw.h>
  21. #include <qdoffscreen.h>
  22. #include <osutils.h> // SetCurrentA5
  23. #include <stddef.h> // offsetof
  24.  
  25. #ifndef TOPLEFT
  26.         #define TOPLEFT(r) (*(Point*)&(r).top)
  27.         #define BOTRIGHT(r) (*(Point*)&(r).bottom)
  28. #endif
  29. #define WIDTHOF(r) ((r).right - (r).left)
  30. #define HEIGHTOF(r) ((r).bottom - (r).top)
  31.  
  32. #define ENTER_GW(g) { CGrafPtr _port; GDHandle _gdh; PixMapHandle _pm;\
  33.                 if(LockPixels(_pm = GetGWorldPixMap(g))){\
  34.                         GetGWorld(&_port,&_gdh);\
  35.                         SetGWorld(g,0);
  36. #define LEAVE_GW() \
  37.                         SetGWorld(_port,_gdh);\
  38.                         UnlockPixels(_pm);\
  39.                 } }
  40.  
  41. #if TARGET_CPU_68K
  42.         char *QDG() = 0x2015; // move.l GrafGlobals(a5),d0 ; assumes a valid A5
  43.         #define QD(x) (((QDGlobals*)(QDG()-offsetof(QDGlobals,thePort)))->x)
  44. #else
  45. //      extern QDGlobals qd;
  46.         #define QD(x) qd.x
  47. #endif
  48.  
  49. #define SAFE_QD(x) \
  50.         (((QDGlobals*)(*(char**)SetCurrentA5()-offsetof(QDGlobals,thePort)))->x)
  51.  
  52. void decompose_region(RgnHandle rgn,void (*func)(Rect*));
  53. Fixed fractional_width(unsigned char *s);
  54. void rect2g(Rect *r);
  55. void rgn2g(RgnHandle rgn);
  56. void dashed_lineto(short h,short v);
  57. Boolean only_greys(CTabHandle ct);
  58. Boolean has_colour_QD(void);
  59.