Send right and double click events in wxGrid when using native header.

Previously only simple left click event was sent in this case, now also
generate right and double click ones.

Closes #12156.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64937 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/private/grid.h

@@ -158,6 +158,15 @@ protected:
 private:
     wxGrid *GetOwner() const { return static_cast<wxGrid *>(GetParent()); }
 
+    static wxMouseEvent GetDummyMouseEvent()
+    {
+        // make up a dummy event for the grid event to use -- unfortunately we
+        // can't do anything else here
+        wxMouseEvent e;
+        e.SetState(wxGetMouseState());
+        return e;
+    }
+
     // override the base class method to update our m_columns array
     virtual void OnColumnCountChanging(unsigned int count)
     {
@@ -195,12 +204,8 @@ private:
 
         // as this is done by the user we should notify the main program about
         // it
-
-        // make up a dummy event for the grid event to use -- unfortunately we
-        // can't do anything else here
-        wxMouseEvent e;
-        e.SetState(wxGetMouseState());
-        GetOwner()->SendGridSizeEvent(wxEVT_GRID_COL_SIZE, -1, idx, e);
+        GetOwner()->SendGridSizeEvent(wxEVT_GRID_COL_SIZE, -1, idx,
+                                      GetDummyMouseEvent());
     }
 
     // overridden to react to the columns order changes in the customization
@@ -214,9 +219,33 @@ private:
     // event handlers forwarding wxHeaderCtrl events to wxGrid
     void OnClick(wxHeaderCtrlEvent& event)
     {
+        GetOwner()->SendEvent(wxEVT_GRID_LABEL_LEFT_CLICK,
+                              -1, event.GetColumn(),
+                              GetDummyMouseEvent());
+
         GetOwner()->DoColHeaderClick(event.GetColumn());
     }
 
+    void OnDoubleClick(wxHeaderCtrlEvent& event)
+    {
+        if ( !GetOwner()->SendEvent(wxEVT_GRID_LABEL_LEFT_DCLICK,
+                                    -1, event.GetColumn(),
+                                    GetDummyMouseEvent()) )
+        {
+            event.Skip();
+        }
+    }
+
+    void OnRightClick(wxHeaderCtrlEvent& event)
+    {
+        if ( !GetOwner()->SendEvent(wxEVT_GRID_LABEL_RIGHT_CLICK,
+                                    -1, event.GetColumn(),
+                                    GetDummyMouseEvent()) )
+        {
+            event.Skip();
+        }
+    }
+
     void OnBeginResize(wxHeaderCtrlEvent& event)
     {
         GetOwner()->DoStartResizeCol(event.GetColumn());