diff --git a/SketchWidget.py b/SketchWidget.py
index c035297..6e794a7 100644
--- a/SketchWidget.py
+++ b/SketchWidget.py
@@ -76,18 +76,9 @@ class SketchWidget:
 
         for shape in self.sketch:
             if isinstance(shape, Line):
-                glBegin(GL_LINES)
-                glVertex(shape.vars[0], shape.vars[1])
-                glVertex(shape.vars[2], shape.vars[3])
-                glEnd()
+                self.drawLine(shape)
             elif isinstance(shape, Circle):
-                glBegin(GL_LINE_LOOP)
-                for i in range(24):
-                    glVertex(shape.vars[0] +
-                            shape.vars[2] * math.sin(i * 2 * math.pi / 24.0),
-                            shape.vars[1] +
-                            shape.vars[2] * math.cos(i * 2 * math.pi / 24.0))
-                glEnd()
+                self.drawCircle(shape)
 
         if gldrawable.is_double_buffered():
             gldrawable.swap_buffers()
@@ -97,3 +88,18 @@ class SketchWidget:
         gldrawable.gl_end()
 
         return True
+
+    def drawLine(self, shape):
+        glBegin(GL_LINES)
+        glVertex(shape.vars[0], shape.vars[1])
+        glVertex(shape.vars[2], shape.vars[3])
+        glEnd()
+
+    def drawCircle(self, shape):
+        glBegin(GL_LINE_LOOP)
+        for i in range(24):
+            glVertex(shape.vars[0] +
+                    shape.vars[2] * math.sin(i * 2 * math.pi / 24.0),
+                    shape.vars[1] +
+                    shape.vars[2] * math.cos(i * 2 * math.pi / 24.0))
+        glEnd()