1998-10-20 00:46:58 +04:00
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//
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2000-04-26 02:17:00 +04:00
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// "$Id: fl_arci.cxx,v 1.4.2.3 2000/04/25 22:16:38 mike Exp $"
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1998-10-20 00:46:58 +04:00
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//
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// Arc (integer) drawing functions for the Fast Light Tool Kit (FLTK).
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//
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2000-04-26 02:17:00 +04:00
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// Copyright 1998-2000 by Bill Spitzak and others.
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1998-10-20 00:46:58 +04:00
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems to "fltk-bugs@easysw.com".
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//
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1998-10-06 22:21:25 +04:00
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// "integer" circle drawing functions. These draw the limited
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// circle types provided by X and NT graphics. The advantage of
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// these is that small ones draw quite nicely (probably due to stored
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// hand-drawn bitmaps of small circles!) and may be implemented by
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// hardware and thus are fast.
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// Probably should add fl_chord.
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// 3/10/98: created
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#include <FL/fl_draw.H>
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#include <FL/x.H>
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#ifdef WIN32
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#include <FL/math.h>
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#endif
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void fl_arc(int x,int y,int w,int h,double a1,double a2) {
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if (w <= 0 || h <= 0) return;
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#ifdef WIN32
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int xa = x+w/2+int(w*cos(a1/180.0*M_PI));
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int ya = y+h/2-int(h*sin(a1/180.0*M_PI));
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int xb = x+w/2+int(w*cos(a2/180.0*M_PI));
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int yb = y+h/2-int(h*sin(a2/180.0*M_PI));
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1999-11-12 03:19:14 +03:00
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Arc(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb);
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1998-10-06 22:21:25 +04:00
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#else
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XDrawArc(fl_display, fl_window, fl_gc, x,y,w-1,h-1, int(a1*64),int((a2-a1)*64));
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#endif
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}
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void fl_pie(int x,int y,int w,int h,double a1,double a2) {
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if (w <= 0 || h <= 0) return;
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#ifdef WIN32
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if (a1 == a2) return;
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int xa = x+w/2+int(w*cos(a1/180.0*M_PI));
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int ya = y+h/2-int(h*sin(a1/180.0*M_PI));
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int xb = x+w/2+int(w*cos(a2/180.0*M_PI));
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int yb = y+h/2-int(h*sin(a2/180.0*M_PI));
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SelectObject(fl_gc, fl_brush());
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1999-11-12 03:19:14 +03:00
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Pie(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb);
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1998-10-06 22:21:25 +04:00
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#else
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XFillArc(fl_display, fl_window, fl_gc, x,y,w,h, int(a1*64),int((a2-a1)*64));
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#endif
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}
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1998-10-20 00:46:58 +04:00
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//
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2000-04-26 02:17:00 +04:00
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// End of "$Id: fl_arci.cxx,v 1.4.2.3 2000/04/25 22:16:38 mike Exp $".
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1998-10-20 00:46:58 +04:00
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//
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