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

   1 #include "copyright.h"
   2
   3 /* Copyright    Massachusetts Institute of Technology    1985   */
   4 /* Copyright (C) 2001, 2002, 2003, 2004, 2005,
   5                  2006 Free Software Foundation, Inc.  */
   6
   7 /*
   8  * XMenu:       MIT Project Athena, X Window system menu package
   9  *
  10  *      XMenuRecompute - Recompute XMenu object dependencies.
  11  *
  12  *      Author:         Tony Della Fera, DEC
  13  *                      September, 1985
  14  *
  15  */
  16
  17 #include "XMenuInt.h"
  18
  19 int
  20 XMenuRecompute(display, menu)
  21     Display *display;
  22     register XMenu *menu;       /* Menu object to be recomputed. */
  23 {
  24     register XMPane *p_ptr;     /* Pane pointer. */
  25     register XMSelect *s_ptr;   /* Selection pointer. */
  26
  27     register int p_num;         /* Pane serial number. */
  28     register int s_num;         /* Selection serial number. */
  29
  30     /*
  31      * If there are no panes in the menu then return failure
  32      * because the menu is not initialized.
  33      */
  34     if (menu->p_count == 0) {
  35         _XMErrorCode = XME_NOT_INIT;
  36         return(XM_FAILURE);
  37     }
  38
  39     /*
  40      * Recompute menu wide global values: pane window size,
  41      * selection size and maximum selection count.
  42      */
  43     _XMRecomputeGlobals(display, menu);
  44
  45     /*
  46      * For each pane in the menu...
  47      */
  48
  49     p_num = 0;
  50     for (
  51         p_ptr = menu->p_list->next;
  52         p_ptr != menu->p_list;
  53         p_ptr = p_ptr->next
  54     ){
  55         /*
  56          * Recompute pane dependencies.
  57          */
  58         if (_XMRecomputePane(display, menu, p_ptr, p_num) == _FAILURE) {
  59             return(XM_FAILURE);
  60         }
  61         p_num++;
  62
  63         /*
  64          * For each selection in the pane...
  65          */
  66         s_num = 0;
  67         for (
  68             s_ptr = p_ptr->s_list->next;
  69             s_ptr != p_ptr->s_list;
  70             s_ptr = s_ptr->next
  71         ) {
  72             /*
  73              * Recompute selection dependencies.
  74              */
  75             if (_XMRecomputeSelection(display, menu, s_ptr, s_num) == _FAILURE) {
  76                 return(XM_FAILURE);
  77             }
  78             s_num++;
  79         }
  80     }
  81
  82     /*
  83      * Recompute menu size.
  84      */
  85     if (menu->menu_style == CENTER) {
  86         menu->width = menu->p_width + (menu->p_bdr_width << 1);
  87     }
  88     else {
  89         menu->width = menu->p_width + (menu->p_bdr_width << 1) +
  90             ((menu->p_count - 1) * menu->p_x_off);
  91     }
  92     menu->height = menu->p_height + (menu->p_bdr_width << 1) +
  93         ((menu->p_count - 1) * menu->p_y_off);
  94
  95     /*
  96      * Reset the recompute flag.
  97      */
  98     menu->recompute = 0;
  99
 100     /*
 101      * Return successfully.
 102      */
 103     _XMErrorCode = XME_NO_ERROR;
 104     return(XM_SUCCESS);
 105 }
 106
 107 /* arch-tag: 1fe99b82-3873-4aab-b2b3-f277c93e00d9
 108    (do not change this comment) */