[Qgis-developer] How to store a QIcon in QGIS project file?

[Nathan Woodrow]

Hey Germán,

What is the purpose of being able to set different group icons?

- Nathan

On Sun, 8 Mar 2015 at 02:06 Germán Carrillo <carrillo.german at gmail.com>
wrote:

> Hi All,
>
> I'd like to add a "Set Group Icon..." action to the context menu for
> groups in the layer tree. I'm preparing a pull request for that.
>
> Everything is working fine, but I have a doubt on how to make the QGIS
> project to store the QIcon (location), so that when the project is open
> again, the QIcon can be constructed properly.
>
> My first attempt was to store the QIcon path in the project, which works
> fine when the icon is set through QGIS GUI. However, it wouldn't work for
> PyQGIS users, who pass a QIcon object to the setIcon() method of
> QgsLayerTreeGroup. Since QIcon does not store its image file path, it would
> not be possible to access the path and store it in the project file. I
> would have to force PyQGIS users to set the image file path via get/set
> functions iconPath()-setIconPath(), which is not very elegant, but it's the
> only solution I see.
>
> Do you know any other solution for this problem? Perhaps something about
> storing the QIcon somehow serialized?
>
> Regards,
>
> Germán Carrillo
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