X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=libs%2Fcanvas%2Ftypes.cc;h=a8c690bbbe85e2a9bea8cbc7af143f82a3cb0807;hb=a1f858d3b207739e0719c1fc28003f1d9dd3965d;hp=dfd934b126f7bbfd47d13bd11dbb9edfd31f3868;hpb=ce8731b32d5e91f56396cb5f6ca0798bc7fed48a;p=ardour.git

diff --git a/libs/canvas/types.cc b/libs/canvas/types.cc
index dfd934b126..a8c690bbbe 100644
--- a/libs/canvas/types.cc
+++ b/libs/canvas/types.cc
@@ -20,6 +20,9 @@
 #include <algorithm>
 #include <cfloat>
 #include <cassert>
+
+#include <cairomm/context.h>
+
 #include "canvas/types.h"
 
 using namespace std;
@@ -118,6 +121,39 @@ Rect::fix () const
 	return r;
 }
 
+Rect
+Rect::convert_to_device (Cairo::RefPtr<Cairo::Context> c) const
+{
+	Coord xa, ya, xb, yb;
+
+	xa = x0;
+	xb = x1;
+	ya = y0;
+	yb = y1;
+
+	c->user_to_device (xa, ya);
+	c->user_to_device (xb, yb);
+
+	return Rect (xa, ya, xb, yb);
+}
+
+
+Rect
+Rect::convert_to_user (Cairo::RefPtr<Cairo::Context> c) const
+{
+	Coord xa, ya, xb, yb;
+
+	xa = x0;
+	xb = x1;
+	ya = y0;
+	yb = y1;
+
+	c->device_to_user (xa, ya);
+	c->device_to_user (xb, yb);
+
+	return Rect (xa, ya, xb, yb);
+}
+
 Duple
 ArdourCanvas::operator- (Duple const & o)
 {