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Is it possible to add combo-boxes, option groups and similar items to QGIS processing scripts? The documentation mentions text-boxes ('string', 'number'), file browser etc. I would like to add a combo-box with a list of values - should I make my own Qt from?

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If you want to do it the open source way, extend processing with a new parameter type ParameterEnumeration.

The ParameterGeometryPredicate should serve as a good sample. There's also a gui widget defined for it.

For development you can just copy the processing plugin into your plugins folder and modify it in a safe environment there. Once finished, please make a pull request so every other processing plugin out there can use this important parameter type as well.

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  • Thanks! I will see into it (If I manage, I will make a pull request..)
    – Zoran
    Commented Aug 16, 2016 at 21:11
  • If you need help with this, don't hesitate to contact via mailing list or gitter. The QGIS community is very open.
    – Matthias Kuhn
    Commented Aug 17, 2016 at 6:59
  • Is gitter new? Haven't seen that website mentioned anywhere!
    – Joseph
    Commented Aug 17, 2016 at 9:42

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