add progress indication when layers are loaded from projects

git-svn-id: http://svn.osgeo.org/qgis/trunk@10673 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: jef

src/app/qgisapp.cpp

@@ -1555,6 +1555,8 @@ void QgisApp::setupConnections()
   connect( QgsProject::instance(), SIGNAL( oldProjectVersionWarning( QString ) ),
            this, SLOT( oldProjectVersionWarning( QString ) ) );
 
+  connect( QgsProject::instance(), SIGNAL( layerLoaded( int, int ) ), this, SLOT( showProgress( int, int ) ) );
+
 }
 void QgisApp::createCanvas()
 {
@@ -3182,7 +3184,6 @@ void QgisApp::fileOpen()
 } // QgisApp::fileOpen
 
 
-
 /**
   adds a saved project to qgis, usually called on startup by specifying a
   project file on the command line
@@ -3191,6 +3192,8 @@ bool QgisApp::addProject( QString projectFile )
 {
   mMapCanvas->freeze( true );
 
+  QApplication::setOverrideCursor( Qt::WaitCursor );
+
   // clear the map canvas
   removeAllLayers();
 
@@ -3254,6 +3257,8 @@ bool QgisApp::addProject( QString projectFile )
     return false;
   }
 
+  QApplication::restoreOverrideCursor();
+
   mMapCanvas->freeze( false );
   mMapCanvas->refresh();
   return true;

src/core/qgsproject.cpp

@@ -642,7 +642,7 @@ static QgsProjectVersion _getVersion( QDomDocument const &doc )
    </maplayer>
 
 */
-static std::pair< bool, std::list<QDomNode> > _getMapLayers( QDomDocument const &doc )
+std::pair< bool, std::list<QDomNode> > QgsProject::_getMapLayers( QDomDocument const &doc )
 {
   // Layer order is implicit in the order they are stored in the project file
 
@@ -671,6 +671,8 @@ static std::pair< bool, std::list<QDomNode> > _getMapLayers( QDomDocument const
 
   bool returnStatus = true;
 
+  emit layerLoaded( 0, nl.count() );
+
   for ( int i = 0; i < nl.count(); i++ )
   {
     QDomNode node = nl.item( i );
@@ -715,6 +717,8 @@ static std::pair< bool, std::list<QDomNode> > _getMapLayers( QDomDocument const
 
       brokenNodes.push_back( node );
     }
+
+    emit layerLoaded( i + 1, nl.count() );
   }
 
   return make_pair( returnStatus, brokenNodes );

src/core/qgsproject.h

@@ -266,6 +266,11 @@ class CORE_EXPORT QgsProject : public QObject
     //! emitted when an old project file is read.
     void oldProjectVersionWarning( QString );
 
+    //! emitted when a layer from a projects was read
+    // @param i current layer
+    // @param n number of layers
+    void layerLoaded( int i, int n );
+
   private:
 
     QgsProject(); // private 'cause it's a singleton
@@ -279,6 +284,8 @@ class CORE_EXPORT QgsProject : public QObject
 
     static QgsProject * theProject_;
 
+    std::pair< bool, std::list<QDomNode> > _getMapLayers( QDomDocument const &doc );
+
 }; // QgsProject
 
 #endif