Hi all,
Following my previous mail, I am trying to make the identify map tool
available to plugins.
With Matthias Kuhn's help, I've found two ways to achieve this:
- Move QgsMapToolIdentify::identifyVectorLayer and identfiyRasterLayer
to mapCanvas
- Move QgsMapToolIdentify to gui, and inherits it in
QgsMapToolIdentifyAction (or whatever) in app.
As far as I understand it, it will be more complicated for the second
option because app vs non-app code is deeply coupled in the current
QgsMapToolIdentify. Indeed, features are added one by one to
QgsIdentifyResults which is a dialog.
But this second option would be much more powerful: the user could
override the QGIS setting for identify mode (current layer,
top-down,...) which is used in the canvasReleaseEvent or he could filter
the type of layer... And he would not have to rewrite the
canvasReleaseEvent.
I might have missed something, but, I think this would be a great
addition for plugin-devs.
And before going further, I'd like to know experts' opinions and ideas.
Greetings,
Denis
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