1 files changed, 53 insertions, 0 deletions
diff --git a/examples/cairo_snippets/snippets/curve_rectangle.py b/examples/cairo_snippets/snippets/curve_rectangle.py
new file mode 100755
index 0000000..3fb3c4a
--- /dev/null
+++ b/examples/cairo_snippets/snippets/curve_rectangle.py
@@ -0,0 +1,53 @@
+#/* a custom shape, that could be wrapped in a function */
+x0	   = 0.1   #/*< parameters like cairo_rectangle */
+y0	   = 0.1
+rect_width  = 0.8
+rect_height = 0.8
+radius = 0.4   #/*< and an approximate curvature radius */
+
+snippet_normalize (cr, width, height)
+
+x1=x0+rect_width
+y1=y0+rect_height
+#if (!rect_width || !rect_height)
+#    return
+if rect_width/2<radius:
+    if rect_height/2<radius:
+        cr.move_to  (x0, (y0 + y1)/2)
+        cr.curve_to (x0 ,y0, x0, y0, (x0 + x1)/2, y0)
+        cr.curve_to (x1, y0, x1, y0, x1, (y0 + y1)/2)
+        cr.curve_to (x1, y1, x1, y1, (x1 + x0)/2, y1)
+        cr.curve_to (x0, y1, x0, y1, x0, (y0 + y1)/2)
+    else:
+        cr.move_to  (x0, y0 + radius)
+        cr.curve_to (x0 ,y0, x0, y0, (x0 + x1)/2, y0)
+        cr.curve_to (x1, y0, x1, y0, x1, y0 + radius)
+        cr.line_to (x1 , y1 - radius)
+        cr.curve_to (x1, y1, x1, y1, (x1 + x0)/2, y1)
+        cr.curve_to (x0, y1, x0, y1, x0, y1- radius)
+
+else:
+    if rect_height/2<radius:
+        cr.move_to  (x0, (y0 + y1)/2)
+        cr.curve_to (x0 , y0, x0 , y0, x0 + radius, y0)
+        cr.line_to (x1 - radius, y0)
+        cr.curve_to (x1, y0, x1, y0, x1, (y0 + y1)/2)
+        cr.curve_to (x1, y1, x1, y1, x1 - radius, y1)
+        cr.line_to (x0 + radius, y1)
+        cr.curve_to (x0, y1, x0, y1, x0, (y0 + y1)/2)
+    else:
+        cr.move_to  (x0, y0 + radius)
+        cr.curve_to (x0 , y0, x0 , y0, x0 + radius, y0)
+        cr.line_to (x1 - radius, y0)
+        cr.curve_to (x1, y0, x1, y0, x1, y0 + radius)
+        cr.line_to (x1 , y1 - radius)
+        cr.curve_to (x1, y1, x1, y1, x1 - radius, y1)
+        cr.line_to (x0 + radius, y1)
+        cr.curve_to (x0, y1, x0, y1, x0, y1- radius)
+
+cr.close_path ()
+
+cr.set_source_rgb (0.5,0.5,1)
+cr.fill_preserve ()
+cr.set_source_rgba (0.5,0,0,0.5)
+cr.stroke ()