[dbmanager] add connection icon

this harmonizes display with that of the browser panel

python/plugins/db_manager/db_model.py

@@ -156,6 +156,9 @@ def data(self, column):
             return self.getItemData().connectionName()
         return None
 
+    def icon(self):
+        return self.getItemData().connectionIcon()
+
     def populate(self):
         if self.populated:
             return True

python/plugins/db_manager/db_plugins/plugin.py

@@ -27,7 +27,7 @@
 from qgis.PyQt.QtGui import QKeySequence, QIcon
 
 from qgis.gui import QgsMessageBar
-from qgis.core import Qgis, QgsSettings
+from qgis.core import Qgis, QgsApplication, QgsSettings
 from ..db_plugins import createDbPlugin
 
 
@@ -91,6 +91,9 @@ def __init__(self, conn_name, parent=None):
     def __del__(self):
         pass  # print "DBPlugin.__del__", self.connName
 
+    def connectionIcon(self):
+        return QgsApplication.getThemeIcon("/mIconDbSchema.svg")
+
     def connectionName(self):
         return self.connName
 

python/plugins/db_manager/db_plugins/vlayers/plugin.py

@@ -39,6 +39,9 @@ class VLayerDBPlugin(DBPlugin):
     def icon(self):
         return QgsApplication.getThemeIcon("/mIconVirtualLayer.svg")
 
+    def connectionIcon(self):
+        return QgsApplication.getThemeIcon("/providerQgis.svg")
+
     @classmethod
     def typeName(self):
         return 'vlayers'