oldXMenu/DelPane.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  *      XMenuDeletePane - Deletes a pane 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 XMenuDeletePane(register Display *display, register XMenu *menu, register int p_num)
  20                                 /* Previously opened display */
  21                                 /* Menu object to be modified. */
  22                                 /* Pane number to be deleted. */
  23 {
  24     register XMPane *p_ptr;     /* Pointer to pane being deleted. */
  25     register XMSelect *s_ptr;   /* Pointer to selections being deleted. */
  26     register XMSelect *s_next;  /* Pointer to next selection to be 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      * Remove the pane from the association table.
  36      */
  37     XDeleteAssoc(display, menu->assoc_tab, p_ptr->window);
  38
  39     /*
  40      * Remove the pane from the pane list and update
  41      * the pane count.
  42      */
  43     emacs_remque(p_ptr);
  44     menu->p_count--;
  45
  46     /*
  47      * Remove all the selections in the pane from the
  48      * association table and free their XMSelect structures.
  49      */
  50     for (
  51         s_ptr = p_ptr->s_list->next;
  52         s_ptr != p_ptr->s_list;
  53         s_ptr = s_next
  54     ) {
  55         XDeleteAssoc(display, menu->assoc_tab, s_ptr->window);
  56         s_next = s_ptr->next;
  57         free(s_ptr);
  58     }
  59     free(p_ptr->s_list);
  60
  61     if (p_ptr->window) {
  62         /*
  63          * Destroy the selection transparencies.
  64          */
  65         XDestroySubwindows(display, p_ptr->window);
  66
  67         /*
  68          * Destroy the pane window.
  69          */
  70         XDestroyWindow(display, p_ptr->window);
  71     }
  72
  73     /*
  74      * Free the pane's XMPane structure.
  75      */
  76     free(p_ptr);
  77
  78     /*
  79      * Schedule a recompute.
  80      */
  81     menu->recompute = 1;
  82
  83     /*
  84      * Return the pane number just deleted.
  85      */
  86     _XMErrorCode = XME_NO_ERROR;
  87     return(p_num);
  88 }
  89