made wxAcceleratorTable work with buttons in wxGTK too

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@52614 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -174,6 +174,7 @@ wxGTK:
 - Fixed wxBitmapButton to use focus and hover bitmaps correctly.
 - Fixed race condition which could cause idle processing to stop without
   processing all pending events.
+- wxAcceleratorTable now works with buttons too.
 
 wxMac:
 

docs/latex/wx/accel.tex

@@ -71,8 +71,7 @@ which modifier key is held down.}
 \section{\class{wxAcceleratorTable}}\label{wxacceleratortable}
 
 An accelerator table allows the application to specify a table of keyboard shortcuts for
-menus or other commands. On Windows, menu or button commands are supported; on GTK,
-only menu commands are supported.
+menu or button commands.
 
 The object {\bf wxNullAcceleratorTable} is defined to be a table with no data, and is the
 initial accelerator table for a window.

src/gtk/window.cpp

@@ -1051,8 +1051,18 @@ gtk_window_key_press_callback( GtkWidget *widget,
             int command = ancestor->GetAcceleratorTable()->GetCommand( event );
             if (command != -1)
             {
-                wxCommandEvent command_event( wxEVT_COMMAND_MENU_SELECTED, command );
-                ret = ancestor->GetEventHandler()->ProcessEvent( command_event );
+                wxCommandEvent menu_event( wxEVT_COMMAND_MENU_SELECTED, command );
+                ret = ancestor->GetEventHandler()->ProcessEvent( menu_event );
+
+                if ( !ret )
+                {
+                    // if the accelerator wasn't handled as menu event, try
+                    // it as button click (for compatibility with other
+                    // platforms):
+                    wxCommandEvent button_event( wxEVT_COMMAND_BUTTON_CLICKED, command );
+                    ret = ancestor->GetEventHandler()->ProcessEvent( button_event );
+                }
+
                 break;
             }
             if (ancestor->IsTopLevel())