1 files changed, 74 insertions, 0 deletions
diff --git a/libs/pbd3/pbd/ellipsoid.h b/libs/pbd3/pbd/ellipsoid.h
new file mode 100644
index 0000000000..3758e415c2
--- /dev/null
+++ b/libs/pbd3/pbd/ellipsoid.h
@@ -0,0 +1,74 @@
+/*
+    Copyright (C) 1998-99 Paul Barton-Davis
+ 
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    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.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#ifndef __qm_ellipsoid_h__
+#define __qm_ellipsoid_h__
+
+struct Arc
+{
+	int rect_x;
+	int rect_y;
+	int rect_h;
+	int rect_w;
+	int start_angle;
+	int arc_angle;
+	bool counter_clockwise;
+};
+
+class Ellipsoid
+{
+	int start_x;
+	int end_x;
+	int start_y;
+	int end_y;
+	static const unsigned int narcs;
+
+ public:
+        Arc arc[2];
+
+	Ellipsoid () { 
+		start_x = -1;
+		end_x = -1;
+	}
+
+	bool ready() { return start_x != -1 && end_x != -1; }
+	void set_start (int x, int y);
+	void set_end (int x, int y);
+	void compute ();
+
+	void set_start_angle (int n, int which_arc = -1) {
+		if (which_arc < 0) {
+			arc[0].start_angle = n * 64; 
+			arc[1].start_angle = n * 64; 
+		} else if (which_arc < (int) narcs) {
+			arc[which_arc].start_angle = n * 64;
+		}
+	}
+	void set_arc_angle (int n, int which_arc = -1) { 
+		if (which_arc < 0) {
+			arc[0].arc_angle = n * 64;
+			arc[1].arc_angle = n * 64;
+		} else if (which_arc < (int) narcs) {
+			arc[which_arc].arc_angle = n * 64;
+		}
+	}
+};
+
+#endif  // __qm_ellipsoid_h__