Undo/redo fully working

Normand Briere

2019-06-11 1d909ffa0c2beb51d453b53b845c4f3a749ca5f0

 BezierSurface.java
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@@ -67,7 +67,7 @@
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         return l;
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     }
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-	void draw(CameraPane display, Object3D /*Composite*/ root, boolean selected, boolean blocked)
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+	void draw(iCameraPane display, Object3D /*Composite*/ root, boolean selected, boolean blocked)
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 	{
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 	//	((BezierSurface)parent.parent).currentHandle = (Sphere)this;
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         //        parent.parent.recalculate();