X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/940caa34ccf1e82f156538fa1e4d159122ac1082..25b3661bd4cb44304418b93c0dee1d0dfb99765c:/wxPython/wx/lib/ogl/_lines.py

diff --git a/wxPython/wx/lib/ogl/_lines.py b/wxPython/wx/lib/ogl/_lines.py
index 5bfd6bd4e6..1e1d3ab68a 100644
--- a/wxPython/wx/lib/ogl/_lines.py
+++ b/wxPython/wx/lib/ogl/_lines.py
@@ -298,19 +298,22 @@ class LineShape(Shape):
         # the middle points to something other than (-999, -999)
         self._initialised = False
         
-    def InsertLineControlPoint(self, dc = None):
-        """Insert a control point at an arbitrary position."""
+    def InsertLineControlPoint(self, dc = None, point = None):
+        """Insert a control point at an optional given position."""
         if dc:
             self.Erase(dc)
 
-        last_point = self._lineControlPoints[-1]
-        second_last_point = self._lineControlPoints[-2]
+        if point:
+            line_x, line_y = point
+        else:
+            last_point = self._lineControlPoints[-1]
+            second_last_point = self._lineControlPoints[-2]
 
-        line_x = (last_point[0] + second_last_point[0]) / 2.0
-        line_y = (last_point[1] + second_last_point[1]) / 2.0
+            line_x = (last_point[0] + second_last_point[0]) / 2.0
+            line_y = (last_point[1] + second_last_point[1]) / 2.0
 
         point = wx.RealPoint(line_x, line_y)
-        self._lineControlPoints.insert(len(self._lineControlPoints), point)
+        self._lineControlPoints.insert(len(self._lineControlPoints)-1, point)
 
     def DeleteLineControlPoint(self):
         """Delete an arbitary point on the line."""