Hi I understand that QgisAppInterface should only be available wen running the app.
I am working with sublayer handling, which is not handled my QgsRasterLayer / QgsVectorLayer . Have a closer look at the various addRasterLayers and it's not as simple as you write (in part my fault - I hacked around existing code to add zip support and also raster sublayers). - vectors datasets can have multiple layers - rasters can have sublayers (subdatasets in GDAL) - zip files can have multiple layers/subdatasets Unfortunately the code that handles sublayer loading is in QgisApp, and I would like to add some tests for this in case it gets broken in the future. It broke a few months ago for rasters, and there ia a case where it doesn't work for vectors. Would you have a suggestion as to how we can improve this - i.e. manage sublayers outside of QgisApp? thanks Etienne On Tue, Nov 20, 2012 at 3:08 PM, Martin Dobias <wonder...@gmail.com> wrote: > > On Tue, Nov 20, 2012 at 5:52 PM, Etienne Tourigny <etourigny....@gmail.com> > wrote: >> >> Hi, >> >> I am trying to add some tests for the addRasterLayer() and >> addVectorLayer() members in QgisApp, and it seems I cannot have access >> to them from the test environment. >> >> >> >> [...] >> >> >> >> How to get the "real" QgsAppInterface like when using a plugin? > > > Hi Etienne > > that's right, it's not possible to access QgisAppInterface outside of > running QGIS instance. This has a reason: the interface provides various > methods that make sense only when QGIS is running (e.g. access to map > canvas, main window, toolbars). For testing purposes you could create a fake > implmentation of QgisInterface, but that's most likely not what you want. > > IIRC addVectorLayer() and addRasterLayer() are just relatively simple > wrappers around this code: > layer = new Qgs[Vector / Raster]Layer( ... ); > if (layer->isValid()) > QgsMapLayerRegistry::instance()->addMapLayer(layer); > > I'm wondering what exactly are you trying to test... is it the "core" layer > (and provider) loading or the connection with other QGIS components? > > Regards > Martin _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer