Include a stripped-down version of FLTK in tree and add a USE_INCLUDED_FLTK option to build against it.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4603 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/fltk/src/fl_arci.cxx b/common/fltk/src/fl_arci.cxx
new file mode 100644
index 0000000..963d62c
--- /dev/null
+++ b/common/fltk/src/fl_arci.cxx
@@ -0,0 +1,131 @@
+//
+// "$Id: fl_arci.cxx 7903 2010-11-28 21:06:39Z matt $"
+//
+// Arc (integer) drawing functions for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2010 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+// http://www.fltk.org/str.php
+//
+
+/**
+ \file fl_arci.cxx
+ \brief Utility functions for drawing circles using integers
+*/
+
+// "integer" circle drawing functions. These draw the limited
+// circle types provided by X and NT graphics. The advantage of
+// these is that small ones draw quite nicely (probably due to stored
+// hand-drawn bitmaps of small circles!) and may be implemented by
+// hardware and thus are fast.
+
+// Probably should add fl_chord.
+
+// 3/10/98: created
+
+#include <FL/fl_draw.H>
+#include <FL/x.H>
+#ifdef WIN32
+# include <FL/math.h>
+#endif
+#include <config.h>
+
+void Fl_Graphics_Driver::arc(int x,int y,int w,int h,double a1,double a2) {
+ if (w <= 0 || h <= 0) return;
+
+#if defined(USE_X11)
+ XDrawArc(fl_display, fl_window, fl_gc, x,y,w-1,h-1, int(a1*64),int((a2-a1)*64));
+#elif defined(WIN32)
+ int xa = x+w/2+int(w*cos(a1/180.0*M_PI));
+ int ya = y+h/2-int(h*sin(a1/180.0*M_PI));
+ int xb = x+w/2+int(w*cos(a2/180.0*M_PI));
+ int yb = y+h/2-int(h*sin(a2/180.0*M_PI));
+ if (fabs(a1 - a2) < 90) {
+ if (xa == xb && ya == yb) SetPixel(fl_gc, xa, ya, fl_RGB());
+ else Arc(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb);
+ } else Arc(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb);
+#elif defined(__APPLE_QUARTZ__)
+ a1 = (-a1)/180.0f*M_PI; a2 = (-a2)/180.0f*M_PI;
+ float cx = x + 0.5f*w - 0.5f, cy = y + 0.5f*h - 0.5f;
+ CGContextSetShouldAntialias(fl_gc, true);
+ if (w!=h) {
+ CGContextSaveGState(fl_gc);
+ CGContextTranslateCTM(fl_gc, cx, cy);
+ CGContextScaleCTM(fl_gc, w-1.0f, h-1.0f);
+ CGContextAddArc(fl_gc, 0, 0, 0.5, a1, a2, 1);
+ CGContextRestoreGState(fl_gc);
+ } else {
+ float r = (w+h)*0.25f-0.5f;
+ CGContextAddArc(fl_gc, cx, cy, r, a1, a2, 1);
+ }
+ CGContextStrokePath(fl_gc);
+ CGContextSetShouldAntialias(fl_gc, false);
+#else
+# error unsupported platform
+#endif
+}
+
+void Fl_Graphics_Driver::pie(int x,int y,int w,int h,double a1,double a2) {
+ if (w <= 0 || h <= 0) return;
+
+#if defined(USE_X11)
+ XFillArc(fl_display, fl_window, fl_gc, x,y,w-1,h-1, int(a1*64),int((a2-a1)*64));
+#elif defined(WIN32)
+ if (a1 == a2) return;
+ int xa = x+w/2+int(w*cos(a1/180.0*M_PI));
+ int ya = y+h/2-int(h*sin(a1/180.0*M_PI));
+ int xb = x+w/2+int(w*cos(a2/180.0*M_PI));
+ int yb = y+h/2-int(h*sin(a2/180.0*M_PI));
+ SelectObject(fl_gc, fl_brush());
+ if (fabs(a1 - a2) < 90) {
+ if (xa == xb && ya == yb) {
+ MoveToEx(fl_gc, x+w/2, y+h/2, 0L);
+ LineTo(fl_gc, xa, ya);
+ SetPixel(fl_gc, xa, ya, fl_RGB());
+ } else Pie(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb);
+ } else Pie(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb);
+#elif defined(__APPLE_QUARTZ__)
+ a1 = (-a1)/180.0f*M_PI; a2 = (-a2)/180.0f*M_PI;
+ float cx = x + 0.5f*w - 0.5f, cy = y + 0.5f*h - 0.5f;
+ CGContextSetShouldAntialias(fl_gc, true);
+ if (w!=h) {
+ CGContextSaveGState(fl_gc);
+ CGContextTranslateCTM(fl_gc, cx, cy);
+ CGContextScaleCTM(fl_gc, w, h);
+ CGContextAddArc(fl_gc, 0, 0, 0.5, a1, a2, 1);
+ CGContextAddLineToPoint(fl_gc, 0, 0);
+ CGContextClosePath(fl_gc);
+ CGContextRestoreGState(fl_gc);
+ } else {
+ float r = (w+h)*0.25f;
+ CGContextAddArc(fl_gc, cx, cy, r, a1, a2, 1);
+ CGContextAddLineToPoint(fl_gc, cx, cy);
+ CGContextClosePath(fl_gc);
+ }
+ CGContextFillPath(fl_gc);
+ CGContextSetShouldAntialias(fl_gc, false);
+#else
+# error unsupported platform
+#endif
+}
+
+//
+// End of "$Id: fl_arci.cxx 7903 2010-11-28 21:06:39Z matt $".
+//