-#include <algorithm>
-#include <cfloat>
-#include <cassert>
-#include "canvas/types.h"
-
-using namespace std;
-using namespace ArdourCanvas;
-
-Coord const ArdourCanvas::COORD_MAX = DBL_MAX;
-/* XXX: empirically arrived at */
-Coord const ArdourCanvas::CAIRO_MAX = 65536;
-
-static inline Coord
-safe_add (Coord a, Coord b)
-{
- if (((COORD_MAX - a) <= b) || ((COORD_MAX - b) <= a)) {
- return COORD_MAX;
- }
-
- return a + b;
-}
-
-Duple
-Duple::translate (Duple t) const
-{
- Duple d;
-
- d.x = safe_add (x, t.x);
- d.y = safe_add (y, t.y);
-
- return d;
-}
-
-boost::optional<Rect>
-Rect::intersection (Rect const & o) const
-{
- Rect i;
-
- i.x0 = max (x0, o.x0);
- i.y0 = max (y0, o.y0);
- i.x1 = min (x1, o.x1);
- i.y1 = min (y1, o.y1);
-
- if (i.x0 > i.x1 || i.y0 > i.y1) {
- return boost::optional<Rect> ();
- }
-
- return boost::optional<Rect> (i);
-}
-
-Rect
-Rect::translate (Duple t) const
-{
- Rect r;
-
- r.x0 = safe_add (x0, t.x);
- r.y0 = safe_add (y0, t.y);
- r.x1 = safe_add (x1, t.x);
- r.y1 = safe_add (y1, t.y);
- return r;
-}
+/*
+ Copyright (C) 2011-2013 Paul Davis
+ Author: Carl Hetherington <cth@carlh.net>
-Rect
-Rect::extend (Rect const & o) const
-{
- Rect r;
- r.x0 = min (x0, o.x0);
- r.y0 = min (y0, o.y0);
- r.x1 = max (x1, o.x1);
- r.y1 = max (y1, o.y1);
- return r;
-}
+ 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.
-Rect
-Rect::expand (Distance amount) const
-{
- Rect r;
- r.x0 = x0 - amount;
- r.y0 = y0 - amount;
- r.x1 = safe_add (x1, amount);
- r.y1 = safe_add (y1, amount);
- return r;
-}
+ 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.
-bool
-Rect::contains (Duple point) const
-{
- return point.x >= x0 && point.x <= x1 && point.y >= y0 && point.y <= y1;
-}
+ 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.
+*/
-Rect
-Rect::fix () const
-{
- Rect r;
-
- r.x0 = min (x0, x1);
- r.y0 = min (y0, y1);
- r.x1 = max (x0, x1);
- r.y1 = max (y0, y1);
-
- return r;
-}
+#include <cfloat>
+#include <cassert>
-Duple
-ArdourCanvas::operator- (Duple const & o)
-{
- return Duple (-o.x, -o.y);
-}
+#include <cairomm/context.h>
-Duple
-ArdourCanvas::operator+ (Duple const & a, Duple const & b)
-{
- return Duple (safe_add (a.x, b.x), safe_add (a.y, b.y));
-}
+#include "canvas/types.h"
-Duple
-ArdourCanvas::operator- (Duple const & a, Duple const & b)
-{
- return Duple (a.x - b.x, a.y - b.y);
-}
+using namespace std;
+using namespace ArdourCanvas;
-Duple
-ArdourCanvas::operator/ (Duple const & a, double b)
-{
- return Duple (a.x / b, a.y / b);
-}
+Coord const ArdourCanvas::COORD_MAX = 1.7e307;
ostream &
ArdourCanvas::operator<< (ostream & s, Duple const & r)