src/Fl_Menu_global.cxx

   1 //
   2 // "$Id: Fl_Menu_global.cxx 7903 2010-11-28 21:06:39Z matt $"
   3 //
   4 // Global menu shortcut code for the Fast Light Tool Kit (FLTK).
   5 //
   6 // Copyright 1998-2010 by Bill Spitzak and others.
   7 //
   8 // This library is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public
  10 // License as published by the Free Software Foundation; either
  11 // version 2 of the License, or (at your option) any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // Library General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU Library General Public
  19 // License along with this library; if not, write to the Free Software
  20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21 // USA.
  22 //
  23 // Please report all bugs and problems on the following page:
  24 //
  25 //     http://www.fltk.org/str.php
  26 //
  27
  28 // Make all the shortcuts in this menu global.
  29 // Currently only one menu at a time and you cannot destruct the menu,
  30 // is this sufficient?
  31
  32 #include <FL/Fl.H>
  33 #include <FL/Fl_Menu_.H>
  34
  35 static Fl_Menu_* the_widget;
  36
  37 static int handler(int e) {
  38   if (e != FL_SHORTCUT || Fl::modal()) return 0;
  39   Fl::first_window(the_widget->window());
  40   return the_widget->handle(e);
  41 }
  42
  43 /**
  44   Make the shortcuts for this menu work no matter what window has the
  45   focus when you type it.  This is done by using
  46   Fl::add_handler().  This Fl_Menu_ widget does not
  47   have to be visible (ie the window it is in can be hidden, or it does
  48   not have to be put in a window at all).
  49   <P>Currently there can be only one global()menu.  Setting a new
  50   one will replace the old one.  There is no way to remove the
  51   global() setting (so don't destroy the widget!)
  52 */
  53 void Fl_Menu_::global() {
  54   if (!the_widget) Fl::add_handler(handler);
  55   the_widget = this;
  56 }
  57
  58 //
  59 // End of "$Id: Fl_Menu_global.cxx 7903 2010-11-28 21:06:39Z matt $".
  60 //