reenabled the possibility to copy/cut-paste geometries (in the digiti…

…zing toolbar)

git-svn-id: http://svn.osgeo.org/qgis/trunk@5489 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/gui/qgisapp.cpp

@@ -638,6 +638,18 @@ void QgisApp::createActions()
   mActionMoveVertex = new QAction(QIcon(myIconPath+"/mActionMoveVertex.png"), tr("Move Vertex"), this);
   mActionMoveVertex->setStatusTip(tr("Move Vertex"));
   connect(mActionMoveVertex, SIGNAL(triggered()), this, SLOT(moveVertex()));
+
+  mActionEditCut = new QAction(QIcon(myIconPath+"/mActionEditCut.png"), tr("cut features"), this);
+  mActionEditCut->setStatusTip(tr("Cut selected features"));
+  connect(mActionEditCut, SIGNAL(triggered()), this, SLOT(editCut()));
+
+  mActionEditCopy = new QAction(QIcon(myIconPath+"/mActionEditCopy.png"), tr("copy features"), this);
+  mActionEditCopy->setStatusTip(tr("Copy selected features"));
+  connect(mActionEditCopy, SIGNAL(triggered()), this, SLOT(editCopy()));
+
+  mActionEditPaste = new QAction(QIcon(myIconPath+"/mActionEditPaste.png"), tr("paste features"), this);
+  mActionEditPaste->setStatusTip(tr("Paste selected features"));
+  connect(mActionEditPaste, SIGNAL(triggered()), this, SLOT(editPaste()));
 }
 
 void QgisApp::createActionGroups()
@@ -807,6 +819,9 @@ void QgisApp::createToolBars()
   mDigitizeToolBar->addAction(mActionAddVertex);
   mDigitizeToolBar->addAction(mActionDeleteVertex);
   mDigitizeToolBar->addAction(mActionMoveVertex);
+  mDigitizeToolBar->addAction(mActionEditCut);
+  mDigitizeToolBar->addAction(mActionEditCopy);
+  mDigitizeToolBar->addAction(mActionEditPaste);
   //
   // Map Navigation Toolbar
   mMapNavToolBar = addToolBar(tr("Map Navigation"));
@@ -3379,8 +3394,8 @@ void QgisApp::editPaste()
 
     if (activeVectorLayer != 0)
     {
-      //      activeVectorLayer->addFeatures( &(clipboard()->copyOf()) );
       activeVectorLayer->addFeatures( clipboard()->copyOf() );
+      mMapCanvas->refresh();
     }  
   }  
 }
@@ -4635,21 +4650,25 @@ void QgisApp::activateDeactivateLayerRelatedActions(const QgsMapLayer* layer)
 	    {
 	      mActionStartEditing->setEnabled(true);
 	      mActionStopEditing->setEnabled(true);
+	      mActionEditPaste->setEnabled(true);
 	    }
 	  else
 	    {
 	      mActionStartEditing->setEnabled(false);
 	      mActionStopEditing->setEnabled(false);
+	      mActionEditPaste->setEnabled(false);
 	    }
 
 	  //does provider allow deleting of features?
 	  if(dprovider->capabilities() & QgsVectorDataProvider::DeleteFeatures)
 	    {
 	      mActionDeleteSelected->setEnabled(true);
+	      mActionEditCut->setEnabled(true);
 	    }
 	  else
 	    {
 	      mActionDeleteSelected->setEnabled(false);
+	      mActionEditCut->setEnabled(false);
 	    }
 
 
@@ -4727,6 +4746,9 @@ void QgisApp::activateDeactivateLayerRelatedActions(const QgsMapLayer* layer)
       mActionAddVertex->setEnabled(false);
       mActionDeleteVertex->setEnabled(false);
       mActionMoveVertex->setEnabled(false);
+      mActionEditCopy->setEnabled(false);
+      mActionEditCut->setEnabled(false);
+      mActionEditPaste->setEnabled(false);
 
       const QgsRasterLayer* vlayer = dynamic_cast<const QgsRasterLayer*> (layer);
       const QgsRasterDataProvider* dprovider = vlayer->getDataProvider();

src/gui/qgisapp.h

@@ -294,6 +294,12 @@ public slots:
   void moveVertex();
   //! activates the delete vertex tool
   void deleteVertex();
+  //! cuts selected features on the active layer to the clipboard
+  void editCut();
+  //! copies selected features on the active layer to the clipboard
+  void editCopy();
+  //! copies features on the clipboard to the active layer
+  void editPaste();
   //! activates the selection tool
   void select();
   //! refresh map canvas
@@ -304,6 +310,7 @@ public slots:
   void startEditing();
   //! disables the editing mode of the current layer
   void stopEditing();
+
 
 public slots:
   void showProgress(int theProgress, int theTotalSteps);
@@ -386,12 +393,6 @@ public slots:
   //void readWKB(const char *, QStringList tables);
   //! test function
   void testButton();
-  //! cuts selected features on the active layer to the clipboard
-  void editCut();
-  //! copies selected features on the active layer to the clipboard
-  void editCopy();
-  //! copies features on the clipboard to the active layer
-  void editPaste();
   //! shows the paste-transformations dialog
   void pasteTransformations();
   //! check to see if file is dirty and if so, prompt the user th save it
@@ -462,6 +463,9 @@ public slots:
   QAction *mActionAddVertex;
   QAction *mActionDeleteVertex;
   QAction *mActionMoveVertex;
+  QAction *mActionEditCut;
+  QAction *mActionEditCopy;
+  QAction *mActionEditPaste;
   QAction *mActionZoomIn;
   QAction *mActionZoomOut;
   QAction *mActionZoomFullExtent;

src/gui/qgsvectorlayer.cpp

@@ -794,11 +794,8 @@ void QgsVectorLayer::draw(QPainter * p, QgsRect * viewExtent, QgsMapToPixel * th
     if(mEditable)
     {
       // Destroy all cached geometries and clear the references to them
-      for (std::map<int, QgsGeometry*>::iterator it  = mCachedGeometries.begin(); it != mCachedGeometries.end(); ++it )
-	  {
-	    delete (*it).second;
-	  }
-	mCachedGeometries.clear();
+      deleteCachedGeometries();
+
     }
 
     dataProvider->reset();
@@ -923,21 +920,26 @@ QgsVectorLayer::endian_t QgsVectorLayer::endian()
 
 void QgsVectorLayer::cacheGeometries()
 {
-  for(std::map<int, QgsGeometry*>::iterator it = mCachedGeometries.begin(); it != mCachedGeometries.end(); ++it)
-    {
-      delete it->second;
-    }
-  mCachedGeometries.clear();
   if(dataProvider)
     {
       QgsFeature* f = 0;
       while(f = dataProvider->getNextFeature(false))
 	{
 	  mCachedGeometries.insert(std::make_pair(f->featureId(), f->geometryAndOwnership()));
+	  delete f;
 	}
     }
 }
 
+void QgsVectorLayer::deleteCachedGeometries()
+{
+  for (std::map<int, QgsGeometry*>::iterator it  = mCachedGeometries.begin(); it != mCachedGeometries.end(); ++it )
+    {
+      delete (*it).second;
+    }
+  mCachedGeometries.clear();
+}
+
 void QgsVectorLayer::table()
 {
   if (tabledisplay)
@@ -1837,6 +1839,7 @@ void QgsVectorLayer::startEditing()
     }
     else
     {
+      cacheGeometries();
       mEditable=true;
       if(isValid())
       {
@@ -1852,6 +1855,7 @@ void QgsVectorLayer::startEditing()
 
 void QgsVectorLayer::stopEditing()
 {
+  deleteCachedGeometries();
   if(dataProvider)
   {
     if(mModified)
@@ -2447,93 +2451,51 @@ bool QgsVectorLayer::rollBack()
   return true;
 }
 
-
 std::vector<QgsFeature>* QgsVectorLayer::selectedFeatures()
 {
-#ifdef QGISDEBUG
-  std::cout << "QgsVectorLayer::selectedFeatures: entering"
-    << "." << std::endl;
-#endif
-
   if (!dataProvider)
   {
     return 0;
   }
-
-  //TODO: Maybe make this a bit more heap-friendly (i.e. see where we can use references instead of copies)
+
   std::vector<QgsFeature>* features = new std::vector<QgsFeature>;
+  if(mSelected.size() == 0)
+    {
+      return features;
+    }
 
-  for (std::set<int>::iterator it  = mSelected.begin();
-      it != mSelected.end();
-      ++it)
+  //we need to cache all the features first (which has already been done if a layer is editable)
+  if(!mEditable)
+    {
+      deleteCachedGeometries();
+      cacheGeometries();
+    }
+
+  for (std::set<int>::iterator it  = mSelected.begin(); it != mSelected.end(); ++it)
   {
-    // Check this selected item against the committed or changed features
+    // Check this selected item against the committed or cached features
     if ( mCachedGeometries.find(*it) != mCachedGeometries.end() )
     {
-#ifdef QGISDEBUG
-      std::cout << "QgsVectorLayer::selectedFeatures: found a cached geometry: " 
-        << std::endl;
-#endif
-
       QgsFeature* f = new QgsFeature();
-      int row = 0;  //TODO: Get rid of this
-
-      dataProvider->getFeatureAttributes(*it, row, f);
-
-      // TODO: Should deep-copy here
-      f->setGeometry(*mCachedGeometries[*it]);
-
-#ifdef QGISDEBUG
-      std::cout << "QgsVectorLayer::selectedFeatures: '" << f->geometry()->wkt().toLocal8Bit().data() << "'"
-        << "." << std::endl;
-#endif
-
-      // TODO: Mutate with uncommitted attributes / geometry
-
-      // TODO: Retrieve details from provider
-      /*      features.push_back(
-              QgsFeature(mCachedFeatures[*it],
-              mChangedAttributes,
-              mChangedGeometries)
-              );*/
-
+      f->setGeometry(*mCachedGeometries[*it]);//makes a deep copy of the geometry
       features->push_back(*f);
-
-#ifdef QGISDEBUG
-      std::cout << "QgsVectorLayer::selectedFeatures: added to feature vector"
-        << "." << std::endl;
-#endif
-
+      continue;
     }
-
+    
     // Check this selected item against the uncommitted added features
-    for (std::vector<QgsFeature*>::iterator iter  = mAddedFeatures.begin();
+    /*for (std::vector<QgsFeature*>::iterator iter  = mAddedFeatures.begin();
         iter != mAddedFeatures.end();
         ++iter)
     {
       if ( (*it) == (*iter)->featureId() )
       {
-#ifdef QGISDEBUG
-        std::cout << "QgsVectorLayer::selectedFeatures: found an added geometry: " 
-          << std::endl;
-#endif
-        features->push_back( **iter );
+        features->push_back( **iter ); //shouldn't we make a deep copy here?
         break;
       }
-    }
-
-#ifdef QGISDEBUG
-    std::cout << "QgsVectorLayer::selectedFeatures: finished with feature ID " << (*it)
-      << "." << std::endl;
-#endif
+      }*/
 
   } // for each selected
 
-#ifdef QGISDEBUG
-  std::cout << "QgsVectorLayer::selectedFeatures: exiting"
-    << "." << std::endl;
-#endif
-
   return features;
 }
 

src/gui/qgsvectorlayer.h

@@ -562,6 +562,8 @@ protected slots:
 
   /**Caches all the (commited) geometries to mCachedFeatures, e.g. when entering editing mode*/
   void cacheGeometries();
+  /**Deletes the geometries in mCachedGeometries*/
+  void deleteCachedGeometries();
 
   // pointer for loading the provider library
   QLibrary *myLib;