code.delx.au - gnu-emacs/blob - oldXMenu/DelPane.c

   1 #include "copyright.h"
   2
   3 /* Copyright    Massachusetts Institute of Technology    1985   */
   4
   5 /*
   6  * XMenu:       MIT Project Athena, X Window system menu package
   7  *
   8  *      XMenuDeletePane - Deletes a pane from an XMenu object.
   9  *
  10  *      Author:         Tony Della Fera, DEC
  11  *                      20-Nov-85
  12  *
  13  */
  14
  15 #include "XMenuInt.h"
  16
  17 int
  18 XMenuDeletePane(display, menu, p_num)
  19     register Display *display;  /* Previously opened display */
  20     register XMenu *menu;       /* Menu object to be modified. */
  21     register int p_num;         /* Pane number to be deleted. */
  22 {
  23     register XMPane *p_ptr;     /* Pointer to pane being deleted. */
  24     register XMSelect *s_ptr;   /* Pointer to selections being deleted. */
  25     register XMSelect *s_next;  /* Pointer to next selection to be deleted. */
  26
  27     /*
  28      * Find the right pane.
  29      */
  30     p_ptr = _XMGetPanePtr(menu, p_num);
  31     if (p_ptr == NULL) return(XM_FAILURE);
  32
  33     /*
  34      * Remove the pane from the association table.
  35      */
  36     XDeleteAssoc(display, menu->assoc_tab, p_ptr->window);
  37
  38     /*
  39      * Remove the pane from the pane list and update
  40      * the pane count.
  41      */
  42     emacs_remque(p_ptr);
  43     menu->p_count--;
  44
  45     /*
  46      * Remove all the selections in the pane from the
  47      * association table and free their XMSelect structures.
  48      */
  49     for (
  50         s_ptr = p_ptr->s_list->next;
  51         s_ptr != p_ptr->s_list;
  52         s_ptr = s_next
  53     ) {
  54         XDeleteAssoc(display, menu->assoc_tab, s_ptr->window);
  55         s_next = s_ptr->next;
  56         free(s_ptr);
  57     }
  58     free(p_ptr->s_list);
  59
  60     if (p_ptr->window) {
  61         /*
  62          * Destroy the selection transparencies.
  63          */
  64         XDestroySubwindows(display, p_ptr->window);
  65
  66         /*
  67          * Destroy the pane window.
  68          */
  69         XDestroyWindow(display, p_ptr->window);
  70     }
  71
  72     /*
  73      * Free the pane's XMPane structure.
  74      */
  75     free(p_ptr);
  76
  77     /*
  78      * Schedule a recompute.
  79      */
  80     menu->recompute = 1;
  81
  82     /*
  83      * Return the pane number just deleted.
  84      */
  85     _XMErrorCode = XME_NO_ERROR;
  86     return(p_num);
  87 }
  88
  89 /* arch-tag: 32a5bfd4-4bac-4090-bb53-844110f4908e
  90    (do not change this comment) */