G'MIC: Try to activate the newest added layer
This PR makes the G'MIC command activate the topmost layer on execution.
@dkazakov: this tries to activate the newest added layer on G'MIC execution, as it's done with normal UI actions. I followed the existing Document::setActiveNode flow in libkis, but it doesn't work; nor I could find an alternative. Perhaps you can point the way on review?
Test Plan
Build Krita, call G'MIC and execute "Channels to Layers". Make sure the selected node is the first input layer.
Formalities Checklist
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I confirmed this builds. -
I confirmed Krita ran and the relevant functions work. -
I tested the relevant unit tests and can confirm they are not broken. (If not possible, don't hesitate to ask for help!) -
I made sure my commits build individually and have good descriptions as per KDE guidelines. -
I made sure my code conforms to the standards set in the HACKING file. -
I can confirm the code is licensed and attributed appropriately, and that unattributed code is mine, as per KDE Licensing Policy.
Edited by Amy spark