Add ability to invert selection.

apps/opencs/view/render/pagedworldspacewidget.cpp

@@ -606,6 +606,15 @@ void CSVRender::PagedWorldspaceWidget::clearSelection (int elementMask)
     flagAsModified();
 }
 
+void CSVRender::PagedWorldspaceWidget::invertSelection (int elementMask)
+{
+    for (std::map<CSMWorld::CellCoordinates, Cell *>::iterator iter = mCells.begin();
+        iter!=mCells.end(); ++iter)
+        iter->second->setSelection (elementMask, Cell::Selection_Invert);
+
+    flagAsModified();
+}
+
 void CSVRender::PagedWorldspaceWidget::selectAll (int elementMask)
 {
     for (std::map<CSMWorld::CellCoordinates, Cell *>::iterator iter = mCells.begin();

apps/opencs/view/render/pagedworldspacewidget.hpp

@@ -107,6 +107,9 @@ namespace CSVRender
             /// \param elementMask Elements to be affected by the clear operation
             virtual void clearSelection (int elementMask);
 
+            /// \param elementMask Elements to be affected by the select operation
+            virtual void invertSelection (int elementMask);
+
             /// \param elementMask Elements to be affected by the select operation
             virtual void selectAll (int elementMask);
 

apps/opencs/view/render/unpagedworldspacewidget.cpp

@@ -104,6 +104,12 @@ void CSVRender::UnpagedWorldspaceWidget::clearSelection (int elementMask)
     flagAsModified();
 }
 
+void CSVRender::UnpagedWorldspaceWidget::invertSelection (int elementMask)
+{
+    mCell->setSelection (elementMask, Cell::Selection_Invert);
+    flagAsModified();
+}
+
 void CSVRender::UnpagedWorldspaceWidget::selectAll (int elementMask)
 {
     mCell->setSelection (elementMask, Cell::Selection_All);

apps/opencs/view/render/unpagedworldspacewidget.hpp

@@ -47,6 +47,9 @@ namespace CSVRender
             /// \param elementMask Elements to be affected by the clear operation
             virtual void clearSelection (int elementMask);
 
+            /// \param elementMask Elements to be affected by the select operation
+            virtual void invertSelection (int elementMask);
+
             /// \param elementMask Elements to be affected by the select operation
             virtual void selectAll (int elementMask);
 

apps/opencs/view/render/worldspacewidget.hpp

@@ -136,6 +136,9 @@ namespace CSVRender
             /// \param elementMask Elements to be affected by the clear operation
             virtual void clearSelection (int elementMask) = 0;
 
+            /// \param elementMask Elements to be affected by the select operation
+            virtual void invertSelection (int elementMask) = 0;
+
             /// \param elementMask Elements to be affected by the select operation
             virtual void selectAll (int elementMask) = 0;