Managed the render flag in batch tools to avoid waste of time loading many layers, to fix #3254

git-svn-id: http://svn.osgeo.org/qgis/trunk@14875 c8812cc2-4d05-0410-92ff-de0c093fc19c

python/plugins/GdalTools/__init__.py

@@ -22,7 +22,7 @@ def name():
 def description():
   return "Integrate gdal tools into qgis"
 def version(): 
-  return "Version 1.2.17" 
+  return "Version 1.2.18" 
 def qgisMinimumVersion():
   return "1.0"
 def classFactory(iface): 

python/plugins/GdalTools/tools/widgetBatchBase.py

@@ -101,6 +101,10 @@ class GdalToolsBaseBatchWidget(BasePluginWidget):
         msg = QString( "Processing of the following files ended with error: <br><br>" ).append( self.errors.join( "<br><br>" ) )
         QErrorMessage( self ).showMessage( msg )
 
+      # load layers managing the render flag to avoid waste of time
+      canvas = self.iface.mapCanvas()
+      previousRenderFlag = canvas.renderFlag()
+      canvas.setRenderFlag( False )
       notCreatedList = QStringList()
       for item in self.outFiles:
         fileInfo = QFileInfo( item )
@@ -109,6 +113,7 @@ class GdalToolsBaseBatchWidget(BasePluginWidget):
             self.addLayerIntoCanvas( fileInfo )
         else:
           notCreatedList << item
+      canvas.setRenderFlag( previousRenderFlag )
 
       if notCreatedList.isEmpty():
         QMessageBox.information( self, self.tr( "Finished" ), self.tr( "Operation completed." ) )

python/plugins/GdalTools/tools/widgetPluginBase.py

@@ -10,6 +10,7 @@ import GdalTools_utils as Utils
 class GdalToolsBasePluginWidget:
 
   def __init__(self, iface, commandName, helpFileBaseName = None, parent = None):
+      self.iface = iface
       self.base = BaseDialog(parent, iface, self, self.windowTitle(), commandName)
       self.connect(self.base, SIGNAL("processError(QProcess::ProcessError)"), self.onError)
       self.connect(self.base, SIGNAL("processFinished(int, QProcess::ExitStatus)"), self.onFinished)