oldXMenu/DelSel.c

   1 /* Copyright    Massachusetts Institute of Technology    1985   */
   2
   3 #include "copyright.h"
   4
   5
   6 /*
   7  * XMenu:       MIT Project Athena, X Window system menu package
   8  *
   9  *      XMenuDeleteSelection - Deletes a selection from an XMenu object.
  10  *
  11  *      Author:         Tony Della Fera, DEC
  12  *                      20-Nov-85
  13  *
  14  */
  15
  16 #include "XMenuInt.h"
  17
  18 int
  19 XMenuDeleteSelection(register Display *display, register XMenu *menu, register int p_num, register int s_num)
  20                                 /* Previously opened display. */
  21                                 /* Menu object to be modified. */
  22                                 /* Pane number to be deleted. */
  23                                 /* Selection number to be deleted. */
  24 {
  25     register XMPane *p_ptr;     /* Pointer to pane being deleted. */
  26     register XMSelect *s_ptr;   /* Pointer to selections being deleted. */
  27
  28     /*
  29      * Find the right pane.
  30      */
  31     p_ptr = _XMGetPanePtr(menu, p_num);
  32     if (p_ptr == NULL) return(XM_FAILURE);
  33
  34     /*
  35      * Find the right selection.
  36      */
  37     s_ptr = _XMGetSelectionPtr(p_ptr, s_num);
  38     if (s_ptr == NULL) return(XM_FAILURE);
  39
  40     /*
  41      * Remove the selection from the association table.
  42      */
  43     XDeleteAssoc(display, menu->assoc_tab, s_ptr->window);
  44
  45     /*
  46      * Remove the selection from the parent pane's selection
  47      * list and update the selection count.
  48      */
  49     emacs_remque(s_ptr);
  50     p_ptr->s_count--;
  51
  52     /*
  53      * Destroy the selection transparency.
  54      */
  55     if (s_ptr->window) XDestroyWindow(display, s_ptr->window);
  56
  57     /*
  58      * Free the selection's XMSelect structure.
  59      */
  60     free(s_ptr);
  61
  62     /*
  63      * Schedule a recompute.
  64      */
  65     menu->recompute = 1;
  66
  67     /*
  68      * Return the selection number just deleted.
  69      */
  70     _XMErrorCode = XME_NO_ERROR;
  71     return(s_num);
  72 }
  73