Feature request #3297

Add projectSaved() signal to the QgisInterface

Added by Chris Crook over 13 years ago. Updated over 13 years ago.

Assignee:nobody -
Category:Project Loading/Saving
Pull Request or Patch supplied: Resolution:worksforme
Easy fix?:No Copied to github as #:13357


Creates a projectSaved() signal that can be used by plugins to take actions when a project is saved.

This matches the projectRead() signal emitted when a project is read, allowing a plugin to carry out corresponding activities when a project is saved and read.

projectSaved_signal.patch Magnifier (2.27 KB) Chris Crook, 2010-12-06 02:15 PM


#1 Updated by Chris Crook over 13 years ago

Patch attached

#2 Updated by Martin Dobias over 13 years ago

The patch looks OK, but I'm wondering whether the plugins wouldn't profit more from a signal e.g. "projectWillBeSaved" which would be called before saving the project file, so that plugins could alter the project file somehow (given they receive project's QDomDocument with the signal).

#3 Updated by Chris Crook over 13 years ago

In this case I'm thinking that I need a signal after the project is successfully saved. I'm not doing anything with the DOM, I'm saving other data external to the project file. I want to be sure that the project file is successfully saved (and the filename is defined), before I do this.

I agree that a projectWillBeSaved(QDom), or maybe savingProject(QDom), would also be a useful signal.

#4 Updated by Jürgen Fischer over 13 years ago

Am I missing something? Shouldn't connecting to QgsProject.writeProject( QDomDocument & ) (possibly in a projectRead() slot) already work?

#5 Updated by Chris Crook over 13 years ago

  • Resolution set to worksforme
  • Status changed from Open to Closed

Good point .. it does indeed seem to work.

I hadn't realised that the QgsProject was a singleton, so I can just attach to the .instance() signals. Although the timing of the event doesn't fit perfectly (the file is not completely written) I think this is works for me!

It may be worth putting a bit more source code documentation on the QgsInterface readProject signal to point users to the QgsProject signals?

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