-#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;
-}