[pitivi] ui.common.py: check in roundedrec function

[Edward Hervey <edwardrv src gnome org>]

commit 4e32e1cfc721848405cacda0159515ac571a7d9d
Author: Brandon Lewis <brandon_lewis berkeley edu>
Date:   Mon Aug 17 15:39:06 2009 -0700

    ui.common.py: check in roundedrec function

 pitivi/ui/common.py |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)
---
diff --git a/pitivi/ui/common.py b/pitivi/ui/common.py
index fd0d0e3..9bc36fa 100644
--- a/pitivi/ui/common.py
+++ b/pitivi/ui/common.py
@@ -150,3 +150,23 @@ def beautify_stream(stream):
 
     raise NotImplementedError
 
+# from http://cairographics.org/cookbook/roundedrectangles/
+def roundedrec(context,x,y,w,h,r = 10):
+    "Draw a rounded rectangle"
+    #   A****BQ
+    #  H      C
+    #  *      *
+    #  G      D
+    #   F****E
+
+    context.move_to(x+r,y)                      # Move to A
+    context.line_to(x+w-r,y)                    # Straight line to B
+    context.curve_to(x+w,y,x+w,y,x+w,y+r)       # Curve to C, Control points are both at Q
+    context.line_to(x+w,y+h-r)                  # Move to D
+    context.curve_to(x+w,y+h,x+w,y+h,x+w-r,y+h) # Curve to E
+    context.line_to(x+r,y+h)                    # Line to F
+    context.curve_to(x,y+h,x,y+h,x,y+h-r)       # Curve to G
+    context.line_to(x,y+r)                      # Line to H
+    context.curve_to(x,y,x,y,x+r,y)             # Curve to A
+    return
+