EA_OnPostNewDiagram on creating / copying diagram

[Jenni]

Hello,

I have a function in my add-in (C#, EA version 12.0) that automatically inserts a diagram notes element in every newly created diagram. I am using the function EA_OnPostNewDiagram to get notified.

Now, when the user copies an existing diagram via project browser the function EA_OnPostNewDiagram is executed as well. Thus the new diagram contains two overlaying diagram notes elements. That's a problem for our QC.

While copying a diagram EA_OnPostNewDiagram is called before the diagram objects are inserted. So it is not possible to check whether the copied diagram already contains a diagram notes element.

How can I prevent the duplicate diagram notes? Is there a way to find out, whether the user is creating a new diagram or copying an existing one?

Thank you.
Jenni

[Uffe]

Hi Jenni, and welcome to the forum.


As far as I can tell I don't think there's a way to detect diagram copying as opposed to "from-scratch" creation.

Possibly you could move your note creation to EA_OnPostOpenDiagram or EA_OnPostCloseDiagram. While diagrams need not be automatically opened upon creation, you do need to open them to add things to them, which means that any note-less diagrams should be completely empty. Perhaps that's an acceptable limitation.

HTH,


/Uffe

[qwerty]

Why not lookup t_diagramobjects whether or not your note is already present?

q.

[Jenni]

Hi Uffe,

EA_OnPostOpenDiagram has the same problem. The new diagram is still empty when the event is fired.

But you gave me an idea: While copying a diagram OnPostNewDiagram is fired before OnPostOpenDiagram. While creating a new diagram from-scratch the events are fired in reverse order. So I start a timer in OnPostNewDiagram to suppress insertion the diagram notes element for one or two seconds. Thats not a perfect workaround, but it works.

Thanks for your suggestions.
Jenni