added interface for per edit-mode drop handling

apps/opencs/view/render/editmode.cpp

@@ -64,3 +64,9 @@ void CSVRender::EditMode::dragCompleted() {}
 void CSVRender::EditMode::dragAborted() {}
 
 void CSVRender::EditMode::dragWheel (int diff, double speedFactor) {}
+
+void CSVRender::EditMode::dragEnterEvent (QDragEnterEvent *event) {}
+
+void CSVRender::EditMode::dropEvent (QDropEvent* event) {}
+
+void CSVRender::EditMode::dragMoveEvent (QDragMoveEvent *event) {}

apps/opencs/view/render/editmode.hpp

@@ -5,6 +5,10 @@
 
 #include "../widget/modebutton.hpp"
 
+class QDragEnterEvent;
+class QDropEvent;
+class QDragMoveEvent;
+
 namespace CSVRender
 {
     class WorldspaceWidget;
@@ -79,6 +83,15 @@ namespace CSVRender
 
             /// Default-implementation: ignored
             virtual void dragWheel (int diff, double speedFactor);
+
+            /// Default-implementation: ignored
+            virtual void dragEnterEvent (QDragEnterEvent *event);
+
+            /// Default-implementation: ignored
+            virtual void dropEvent (QDropEvent* event);
+
+            /// Default-implementation: ignored
+            virtual void dragMoveEvent (QDragMoveEvent *event);
     };
 }
 

apps/opencs/view/render/worldspacewidget.cpp

@@ -330,6 +330,8 @@ void CSVRender::WorldspaceWidget::dragEnterEvent (QDragEnterEvent* event)
             // These drops are handled through the subview object.
             event->accept();
         }
+        else
+            dynamic_cast<EditMode&> (*mEditMode->getCurrent()).dragEnterEvent (event);
     }
 }
 
@@ -348,10 +350,11 @@ void CSVRender::WorldspaceWidget::dragMoveEvent(QDragMoveEvent *event)
             // These drops are handled through the subview object.
             event->accept();
         }
+        else
+            dynamic_cast<EditMode&> (*mEditMode->getCurrent()).dragMoveEvent (event);
     }
 }
 
-
 bool CSVRender::WorldspaceWidget::storeMappingSetting (const CSMPrefs::Setting *setting)
 {
     if (setting->getParent()->getKey()!="3D Scene Input")
@@ -460,6 +463,8 @@ void CSVRender::WorldspaceWidget::dropEvent (QDropEvent* event)
         {
             emit dataDropped(mime->getData());
         }
+        else
+            dynamic_cast<EditMode&> (*mEditMode->getCurrent()).dropEvent (event);
     }
 }