Fix botched attempt to have ruler adjust to unit changes.

Also fixes the context menu so there's a specific one for the
measurement tool, allowing zooming for instance without cancelling
the tool.

include/preview_items/ruler_item.h

@@ -71,9 +71,12 @@ public:
         return wxT( "RULER_ITEM" );
     }
 
-    void UpdateUserUnits( EDA_UNITS_T aUserUnits )
+    void SwitchUnits()
     {
-        m_userUnits = aUserUnits;
+        if( m_userUnits == INCHES )
+            m_userUnits = MILLIMETRES;
+        else
+            m_userUnits = INCHES;
     }
 
 private:

pcbnew/pcb_base_edit_frame.cpp

@@ -28,7 +28,7 @@
 #include <gal/graphics_abstraction_layer.h>
 #include <class_board.h>
 #include <view/view.h>
-#include <tools/pcb_actions.h>
+
 
 void PCB_BASE_EDIT_FRAME::SetRotationAngle( int aRotationAngle )
 {
@@ -81,13 +81,3 @@ void PCB_BASE_EDIT_FRAME::SetBoard( BOARD* aBoard )
             m_toolManager->ResetTools( TOOL_BASE::MODEL_RELOAD );
     }
 }
-
-
-void PCB_BASE_EDIT_FRAME::unitsChangeRefresh()
-{
-    PCB_BASE_FRAME::unitsChangeRefresh();    // Update the status bar.
-
-    GetToolManager()->RunAction( PCB_ACTIONS::switchUnits, true );  // Notify tools.
-}
-
-

pcbnew/pcb_base_edit_frame.h

@@ -204,8 +204,6 @@ protected:
      * duplicateItem(BOARD_ITEM*, bool) above
      */
     virtual void duplicateItems( bool aIncrement ) = 0;
-
-    void unitsChangeRefresh() override;
 };
 
 #endif

pcbnew/tools/edit_tool.cpp

@@ -237,7 +237,8 @@ void EnsureEditableFilter( const VECTOR2I&, GENERAL_COLLECTOR& aCollector )
 
 EDIT_TOOL::EDIT_TOOL() :
     PCB_TOOL( "pcbnew.InteractiveEdit" ), m_selectionTool( NULL ),
-    m_dragging( false )
+    m_dragging( false ),
+    m_measureMenu( *this )
 {
 }
 
@@ -318,6 +319,16 @@ bool EDIT_TOOL::Init()
     menu.AddItem( PCB_ACTIONS::updateFootprints, singleModuleCondition );
     menu.AddItem( PCB_ACTIONS::exchangeFootprints, singleModuleCondition );
 
+    // Initialize menu for Measurement Tool
+    auto& ctxMenu = m_measureMenu.GetMenu();
+
+    // cancel current toool goes in main context menu at the top if present
+    ctxMenu.AddItem( ACTIONS::cancelInteractive, SELECTION_CONDITIONS::ShowAlways, 1000 );
+    ctxMenu.AddSeparator( SELECTION_CONDITIONS::ShowAlways, 1000 );
+
+    // Finally, add the standard zoom/grid items
+    m_measureMenu.AddStandardSubMenus( *getEditFrame<PCB_BASE_FRAME>() );
+
     return true;
 }
 
@@ -1201,7 +1212,7 @@ int EDIT_TOOL::MeasureTool( const TOOL_EVENT& aEvent )
 
         const VECTOR2I cursorPos = controls.GetCursorPosition();
 
-        if( evt->IsCancel() || evt->IsActivate() )
+        if( evt->IsCancel() || TOOL_EVT_UTILS::IsCancelInteractive( *evt ) || evt->IsActivate() )
         {
             break;
         }
@@ -1255,7 +1266,7 @@ int EDIT_TOOL::MeasureTool( const TOOL_EVENT& aEvent )
 
         else if( evt->IsAction( &PCB_ACTIONS::switchUnits ) )
         {
-            ruler.UpdateUserUnits( frame()->GetUserUnits() );
+            ruler.SwitchUnits();
 
             view.SetVisible( &ruler, true );
             view.Update( &ruler, KIGFX::GEOMETRY );
@@ -1263,7 +1274,7 @@ int EDIT_TOOL::MeasureTool( const TOOL_EVENT& aEvent )
 
         else if( evt->IsClick( BUT_RIGHT ) )
         {
-            GetManager()->PassEvent();
+            m_measureMenu.ShowContextMenu();
         }
     }
 

pcbnew/tools/edit_tool.h

@@ -194,6 +194,9 @@ private:
     ///> of edit reference point).
     VECTOR2I m_cursor;
 
+    ///> A context menu for the Measurement Tool
+    TOOL_MENU m_measureMenu;
+
     ///> Returns the right modification point (e.g. for rotation), depending on the number of
     ///> selected items.
     bool updateModificationPoint( SELECTION& aSelection );