[Qgis-developer] GRASS: delete layers through browser

[Stephan Holl]

Dear devs,

I like to add a test (and learn more about QT) to in the
GRASS-toolboxbrowser which should disable the delete-button, if
the map which should be deleted is currently displayed.

Therefor I found 
	void QgsGrassBrowser::deleteMap()
and/or
	QgsGrassBrowser::selectionChanged
in src/plugin/grass/qgsgrassbrowser.cpp. Which chould be the right
place?

I am new to QT and therefor do not know how to receive the maps
which are currently displayed.

<pseudocode>
QString map = mModel->itemMap(*it);
QString displayedmap = <howtoaccess?>;

if ( map == displayedmap )
{
	/* grey out delete-button */
	mActionDeleteMap->setEnabled(false);
}
</pseudocode>
	
Thanks for any help

	Stephan

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