oldXMenu/ChgPane.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  *      XMenuChangePane - Change the label of a  menu pane.
   9  *
  10  *      Author:         Tony Della Fera, DEC
  11  *                      December 19, 1985
  12  *
  13  */
  14
  15 #include "XMenuInt.h"
  16
  17 int
  18 XMenuChangePane(menu, p_num, label)
  19     register XMenu *menu;       /* Menu object to be modified. */
  20     register int p_num;         /* Pane number to be modified. */
  21     char *label;                /* Selection label. */
  22 {
  23     register XMPane *p_ptr;     /* XMPane pointer. */
  24
  25     int label_length;           /* Label length in characters. */
  26     int label_width;            /* Label width in pixels. */
  27
  28     /*
  29      * Check for NULL pointers!
  30      */
  31     if (label == NULL) {
  32         _XMErrorCode = XME_ARG_BOUNDS;
  33         return(XM_FAILURE);
  34     }
  35
  36     /*
  37      * Find the right pane.
  38      */
  39     p_ptr = _XMGetPanePtr(menu, p_num);
  40     if (p_ptr == NULL) return(XM_FAILURE);
  41
  42     /*
  43      * Determine label size.
  44      */
  45     label_length = strlen(label);
  46     label_width = XTextWidth(menu->p_fnt_info, label, label_length);
  47
  48     /*
  49      * Change the pane data.
  50      */
  51     p_ptr->label = label;
  52     p_ptr->label_width = label_width;
  53     p_ptr->label_length = label_length;
  54
  55     /*
  56      * Schedule a recompute.
  57      */
  58     menu->recompute = 1;
  59
  60     /*
  61      * Return the pane number just changed.
  62      */
  63     _XMErrorCode = XME_NO_ERROR;
  64     return(p_num);
  65 }
  66
  67 /* arch-tag: e267e9de-a3f0-4a0d-8c45-413afa176fd8
  68    (do not change this comment) */