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menu_popup.C 2.3KB

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  1. /*******************************************************************************/
  2. /* Copyright (C) 2008 Jonathan Moore Liles */
  3. /* */
  4. /* This program is free software; you can redistribute it and/or modify it */
  5. /* under the terms of the GNU General Public License as published by the */
  6. /* Free Software Foundation; either version 2 of the License, or (at your */
  7. /* option) any later version. */
  8. /* */
  9. /* This program is distributed in the hope that it will be useful, but WITHOUT */
  10. /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
  11. /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
  12. /* more details. */
  13. /* */
  14. /* You should have received a copy of the GNU General Public License along */
  15. /* with This program; see the file COPYING. If not,write to the Free Software */
  16. /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
  17. /*******************************************************************************/
  18. #include <FL/Fl.H>
  19. #include <FL/Fl_Menu_.H>
  20. #include <FL/Fl_Menu_Item.H>
  21. /** popup menu and execute callback */
  22. bool
  23. menu_popup ( Fl_Menu_ *m, int X, int Y )
  24. {
  25. const Fl_Menu_Item *r = m->menu()->popup( X, Y, m->label() );
  26. if ( r )
  27. {
  28. m->value( r );
  29. if ( r->callback() )
  30. r->do_callback( static_cast<Fl_Widget*>(m) );
  31. else if ( m->callback() )
  32. m->do_callback( static_cast<Fl_Widget*>(m), m->user_data() );
  33. return true;
  34. }
  35. return false;
  36. }
  37. /** popup menu and execute callback */
  38. bool
  39. menu_popup ( Fl_Menu_ *m )
  40. {
  41. return menu_popup( m, Fl::event_x(), Fl::event_y() );
  42. }
  43. /** set a single callback for all items in menu. */
  44. void
  45. menu_set_callback( Fl_Menu_Item *menu, void (*callback)( Fl_Widget *, void * ), void *user_data )
  46. {
  47. for ( int i = menu->size(); i--; )
  48. if ( menu[i].label() && ! menu[i].submenu() )
  49. {
  50. menu[i].callback( callback );
  51. menu[i].user_data( user_data );
  52. }
  53. }