Instant dragging (without prior selection).

pcbnew/tools/selection_tool.cpp

@@ -140,11 +140,19 @@ int SELECTION_TOOL::Main( TOOL_EVENT& aEvent )
         else if( evt->IsDrag( BUT_LEFT ) )
         {
             if( m_selection.Empty() || m_additive )
+            {
+                if( !selectSingle( getView()->ToWorld( getViewControls()->GetMousePosition() ), false ) )
                 {
                     // If nothings has been selected or user wants to select more
                     // draw the selection box
                     selectMultiple();
                 }
+                else
+                {
+                    m_toolMgr->InvokeTool( "pcbnew.InteractiveEdit" );
+                }
+            }
+
             else
             {
                 // Check if dragging has started within any of selected items bounding box
@@ -205,7 +213,7 @@ void SELECTION_TOOL::toggleSelection( BOARD_ITEM* aItem )
 }
 
 
-void SELECTION_TOOL::selectSingle( const VECTOR2I& aWhere )
+bool SELECTION_TOOL::selectSingle( const VECTOR2I& aWhere, bool aAllowDisambiguation )
 {
     BOARD* pcb = getModel<BOARD>( PCB_T );
     BOARD_ITEM* item;
@@ -220,11 +228,13 @@ void SELECTION_TOOL::selectSingle( const VECTOR2I& aWhere )
     case 0:
         if( !m_additive )
             clearSelection();
-        break;
+
+        return false;
 
     case 1:
         toggleSelection( collector[0] );
-        break;
+
+        return true;
 
     default:
         // Remove unselectable items
@@ -238,17 +248,25 @@ void SELECTION_TOOL::selectSingle( const VECTOR2I& aWhere )
         if( collector.GetCount() == 1 )
         {
             toggleSelection( collector[0] );
+
+            return true;
         }
-        else if( collector.GetCount() > 1 )
+
+        else if( aAllowDisambiguation && collector.GetCount() > 1 )
         {
             item = disambiguationMenu( &collector );
 
             if( item )
+            {
                 toggleSelection( item );
-        }
 
+                return true;
+            }
+        }
         break;
     }
+
+    return false;
 }
 
 

pcbnew/tools/selection_tool.h

@@ -130,8 +130,11 @@ private:
      * place, there is a menu displayed that allows to choose the item.
      *
      * @param aWhere is the place where the item should be selected.
+     * @param aAllowDisambiguation decides what to do in case of disambiguation. If true, then
+     * a menu is shown, otherise function finishes without selecting anything.
+     * @return True if an item was selected, false otherwise.
      */
-    void selectSingle( const VECTOR2I& aWhere );
+    bool selectSingle( const VECTOR2I& aWhere, bool aAllowDisambiguation = true );
 
     /**
      * Function selectMultiple()