[FEATURE] Added option to show only markers of selected features in editing mode.

git-svn-id: http://svn.osgeo.org/qgis/trunk@10882 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: mhugent

src/app/qgsoptions.cpp

@@ -218,6 +218,8 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WFlags fl ) :
   mSearchRadiusVertexEditComboBox->setCurrentIndex( settings.value( "/qgis/digitizing/search_radius_vertex_edit_unit", 0 ).toInt() );
 
   //vertex marker
+  mMarkersOnlyForSelectedCheckBox->setChecked(settings.value( "/qgis/digitizing/marker_only_for_selected", false ).toBool());
+
   mMarkerStyleComboBox->addItem( tr( "Semi transparent circle" ) );
   mMarkerStyleComboBox->addItem( tr( "Cross" ) );
   mMarkerStyleComboBox->addItem( tr( "None" ) );
@@ -436,6 +438,7 @@ void QgsOptions::saveOptions()
   settings.setValue( "/qgis/digitizing/search_radius_vertex_edit_unit",
                      ( mSearchRadiusVertexEditComboBox->currentIndex()  == 0 ? QgsTolerance::MapUnits : QgsTolerance::Pixels ) );
 
+  settings.setValue( "/qgis/digitizing/marker_only_for_selected", mMarkersOnlyForSelectedCheckBox->isChecked() );
 
   QString markerComboText = mMarkerStyleComboBox->currentText();
   if ( markerComboText == tr( "Semi transparent circle" ) )

src/core/qgsvectorlayer.cpp

@@ -101,6 +101,7 @@ QgsVectorLayer::QgsVectorLayer( QString vectorLayerPath,
     mRenderer( 0 ),
     mLabel( 0 ),
     mLabelOn( false ),
+    mVertexMarkerOnlyForSelection(false),
     mFetching( false )
 {
   mActions = new QgsAttributeAction;
@@ -439,13 +440,12 @@ unsigned char* QgsVectorLayer::drawLineString(
   // draw vertex markers if in editing mode, but only to the main canvas
   if ( mEditable && drawingToEditingCanvas )
   {
-    QgsVectorLayer::VertexMarkerType markerType = currentVertexMarkerType();
 
     std::vector<double>::const_iterator xIt;
     std::vector<double>::const_iterator yIt;
     for ( xIt = x.begin(), yIt = y.begin(); xIt != x.end(); ++xIt, ++yIt )
     {
-      drawVertexMarker(( int )( *xIt ), ( int )( *yIt ), *p, markerType );
+      drawVertexMarker(( int )( *xIt ), ( int )( *yIt ), *p, mCurrentVertexMarkerType );
     }
   }
 
@@ -662,12 +662,10 @@ unsigned char *QgsVectorLayer::drawPolygon(
     // draw vertex markers if in editing mode, but only to the main canvas
     if ( mEditable && drawingToEditingCanvas )
     {
-      QgsVectorLayer::VertexMarkerType markerType = currentVertexMarkerType();
-
       for ( int i = 0; i < path.elementCount(); ++i )
       {
         const QPainterPath::Element & e = path.elementAt( i );
-        drawVertexMarker(( int )e.x, ( int )e.y, *p, markerType );
+        drawVertexMarker(( int )e.x, ( int )e.y, *p, mCurrentVertexMarkerType );
       }
     }
 
@@ -702,13 +700,16 @@ bool QgsVectorLayer::draw( QgsRenderContext& rendererContext )
     QPen pen;
     /*Pointer to a marker image*/
     QImage marker;
+    //vertex marker type for selection
+    QgsVectorLayer::VertexMarkerType vertexMarker;
 
     if ( mEditable )
     {
       // Destroy all cached geometries and clear the references to them
       deleteCachedGeometries();
-
       mCachedGeometriesRect = rendererContext.extent();
+      vertexMarker = currentVertexMarkerType();
+      mVertexMarkerOnlyForSelection = settings.value( "/qgis/digitizing/marker_only_for_selected", false ).toBool();
     }
 
     updateFeatureCount();
@@ -744,16 +745,27 @@ bool QgsVectorLayer::draw( QgsRenderContext& rendererContext )
         Q_UNUSED( totalFeatures );
 #endif //Q_WS_MAC
 
+        // check if feature is selected
+        // only show selections of the current layer
+        // TODO: create a mechanism to let layer know whether it's current layer or not [MD]
+        bool sel = mSelectedFeatureIds.contains( fet.id() );
+
         if ( mEditable )
         {
           // Cache this for the use of (e.g.) modifying the feature's uncommitted geometry.
           mCachedGeometries[fet.id()] = *fet.geometry();
+
+          if(mVertexMarkerOnlyForSelection && !sel)
+          {
+            mCurrentVertexMarkerType = QgsVectorLayer::NoMarker;
+          }
+          else
+          {
+            mCurrentVertexMarkerType = vertexMarker;
+          }
         }
 
-        // check if feature is selected
-        // only show selections of the current layer
-        // TODO: create a mechanism to let layer know whether it's current layer or not [MD]
-        bool sel = mSelectedFeatureIds.contains( fet.id() );
+
 
         //QgsDebugMsg(QString("markerScale before renderFeature(): %1").arg(markerScaleFactor));
         // markerScalerFactore reflects the wanted scaling of the marker

src/core/qgsvectorlayer.h

@@ -654,6 +654,12 @@ class CORE_EXPORT QgsVectorLayer : public QgsMapLayer
     /** Display labels */
     bool mLabelOn;
 
+    /**The current type of editing marker*/
+    QgsVectorLayer::VertexMarkerType mCurrentVertexMarkerType;
+
+    /**Flag if the vertex markers should be drawn only for selection (true) or for all features (false)*/
+    bool mVertexMarkerOnlyForSelection;
+
     /**List of overlays. Vector overlays will be rendered on top of all maplayers*/
     QList<QgsVectorOverlay*> mOverlays;