Merge pull request #29 from martinRenou/add_fill_rule

Add fill rule

Author: martinRenou

examples/introduction.ipynb

@@ -241,7 +241,16 @@
    "execution_count": null,
    "metadata": {},
    "outputs": [],
-   "source": []
+   "source": [
+    "c = ipycanvas.Canvas(size=(100, 100))\n",
+    "\n",
+    "c.begin_path() \n",
+    "c.arc(50, 50, 30, 0, pi * 2, True)\n",
+    "c.arc(50, 50, 15, 0, pi * 2, True)\n",
+    "c.fill('evenodd')\n",
+    "\n",
+    "c"
+   ]
   }
  ],
  "metadata": {

ipycanvas/canvas.py

@@ -135,9 +135,12 @@ def stroke(self):
         """Stroke (outlines) the current path with the current ``stroke_style``."""
         self._send_canvas_command('stroke')
 
-    def fill(self):
-        """Fill the current or given path with the current ``fill_style``."""
-        self._send_canvas_command('fill')
+    def fill(self, rule='nonzero'):
+        """Fill the current path with the current ``fill_style`` and given the rule.
+
+        Possible rules are ``nonzero`` and ``evenodd``.
+        """
+        self._send_canvas_command('fill', (rule, ))
 
     def move_to(self, x, y):
         """Move the "pen" to the given ``(x, y)`` coordinates."""