oldXMenu/FindPane.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  *      XMenuFindPane - Find the first menu pane who's label matches a
  10  *                      particular string.
  11  *
  12  *      Author:         Tony Della Fera, DEC
  13  *                      January 22, 1986
  14  *
  15  */
  16
  17 #include "XMenuInt.h"
  18 #include <string.h>
  19
  20 int
  21 XMenuFindPane(register XMenu *menu, register char *label)
  22 {
  23     register XMPane *p_ptr;
  24     register int i = 0;
  25
  26     /*
  27      * Check for NULL pointers!
  28      */
  29     if (label == NULL) {
  30         _XMErrorCode = XME_ARG_BOUNDS;
  31         return(XM_FAILURE);
  32     }
  33
  34     /*
  35      * Find the pane who's label matches the given label.
  36      */
  37     for (
  38         p_ptr = menu->p_list->next;
  39         p_ptr != menu->p_list;
  40         p_ptr = p_ptr->next
  41     ){
  42         if (p_ptr->label_length == 0) {
  43             if (*label == '\0') {
  44                 _XMErrorCode = XME_NO_ERROR;
  45                 return (i);
  46             }
  47         }
  48         else {
  49             if (strncmp (label, p_ptr->label, p_ptr->label_length) == 0) {
  50                 _XMErrorCode = XME_NO_ERROR;
  51                 return (i);
  52             }
  53         }
  54         i++;
  55     }
  56
  57     /*
  58      * If we get here then we have not found
  59      * a match.
  60      */
  61     _XMErrorCode = XME_P_NOT_FOUND;
  62     return (XM_FAILURE);
  63 }