Copy-Action in MPS (Ctrl+C)
Hello there.
I'm currently working on a project, that among other things validates constraints outside of MPS. Therefore I created a language similar to the Alloy.
Now I'm at the point that I need the textual representation of my constraints. In other words: I need something like Ctrl+C in my Editor for any kind of node.
Basically the same problem this (https://mps-support.jetbrains.com/hc/en-us/community/posts/206613685-Code-generation-Why-so-many-steps-) post started with. But unfortunately that post went off-topic.
I found out that MPS gives me two actions for Ctrl+C, both named "Copy": 
Both of them have a different functionality.
1 (not what I need):
[facts] Fact null[8154441716430517392] in SandboxSolution.A1
2 (exactly what I need):
fact {
all p : person | p not in p.friend
}
I tried to figure out how they work with the help of my cloned MPS from GitHub. There I found the class jetbrains.mps.ide.actions.CopyNode_Action. This is doing the first Copy-Variant with the help of getDebugText(SNode node) in jetbrains.mps.util.SNodeOperations. But this (as mentioned above) not what I need. I was searching for some hours for the implementation of the second one, but wasn't able to find anything that gives me the String-representation of a node from the editor.
Does anyone here can help me?
Would be glad to hear from you.
Regards
JanK411
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You need the `EditorCell.renderText().getText()`.
Thank you for your quick reply! It sounds very promising, but now I'm struggling to get my EditorCell from the Behavior-Aspect.
If this is a proper way to do it? And if yes, how can I acquire the EditorContext that is needed for the EditorCellFactory?
Or is there maybe another way to access the EditorCell of a Node from its Behavior?
You can't do it from Behavior directly. I see two solutions:
1. Call this from somewhere where you have an editor open: either an intention or an action with the context parameter EDITOR_CELL.
2. Look into creating a HeadlessEditorComponent and opening your node in it and use it to get hold of the cell.
Wow! Thank you so much, it's working!
Solved it this way now:
Best regards
JanK411