private void removeAt(int index, DiagramShape obj, bool undoing)
{
try
{
obj.SetBeingRemoved(true);
if (undoing)
{
int num1 = this.myObjects.IndexOf(obj);
if (num1 >= 0)
{
if ((index < 0) || (index >= this.myObjects.Count))
{
index = num1;
}
this.myObjects.RemoveAt(index);
}
}
else
{
this.myObjects.RemoveAt(index);
}
RectangleF ef1 = obj.Bounds;
this.Changed(0x41c, index, obj, ef1, 0, null, DiagramShape.NullRect);
if (!undoing)
{
this.LayoutChildren(obj);
base.InvalidBounds = true;
RectangleF ef2 = this.Bounds;
}
}
catch (Exception exception1)
{
DiagramShape.Trace("GoGroup.Remove: " + exception1.ToString());
throw exception1;
}
finally
{
obj.SetParent(null, undoing);
obj.SetBeingRemoved(false);
}
}
private void replaceAt(int index, DiagramShape newobj, bool undoing)
{
DiagramShape obj1 = (DiagramShape)this.myObjects[index];
obj1.SetBeingRemoved(true);
obj1.SetParent(null, undoing);
obj1.SetBeingRemoved(false);
this.myObjects[index] = newobj;
RectangleF ef1 = newobj.Bounds;
newobj.SetParent(this, undoing);
this.Changed(0x41e, index, obj1, DiagramShape.NullRect, index, newobj, DiagramShape.NullRect);
if (!undoing)
{
this.LayoutChildren(newobj);
base.InvalidBounds = true;
RectangleF ef2 = this.Bounds;
}
}
private void insertAt(int idx, DiagramShape obj, bool undoing)
{
RectangleF ef1 = obj.Bounds;
if (!undoing || (this.myObjects.IndexOf(obj) < 0))
{
if ((idx < 0) || (idx > this.myObjects.Count))
{
idx = this.myObjects.Count;
}
this.myObjects.Insert(idx, obj);
}
obj.SetParent(this, undoing);
this.Changed(0x41b, 0, null, DiagramShape.NullRect, idx, obj, ef1);
if (!undoing)
{
this.LayoutChildren(obj);
base.InvalidBounds = true;
RectangleF ef2 = this.Bounds;
}
}