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