4.3BSD - /usr/src/new/X/XMenu/XMenuInsSel.c

   1: #include <X/mit-copyright.h>
   2: 
   3: /* $Header: XMenuInsSel.c,v 10.9 86/02/01 16:15:07 tony Rel $ */
   4: /* Copyright    Massachusetts Institute of Technology    1985	*/
   5: 
   6: /*
   7:  * XMenu:	MIT Project Athena, X Window system menu package
   8:  *
   9:  * 	XMenuInsertSelection - Inserts a selection into an XMenu object
  10:  *
  11:  *	Author:		Tony Della Fera, DEC
  12:  *			20-Nov-85
  13:  *
  14:  */
  15: 
  16: #include "XMenuInternal.h"
  17: 
  18: int
  19: XMenuInsertSelection(menu, p_num, s_num, data, label, active)
  20:     register XMenu *menu;   /* Menu object to be modified. */
  21:     register int p_num;     /* Pane number to be modified. */
  22:     register int s_num;     /* Selection number of new selection. */
  23:     char *data;         /* Data value. */
  24:     char *label;        /* Selection label. */
  25:     int active;         /* Make selection active? */
  26: {
  27:     register XMPane *p_ptr; /* XMPane pointer. */
  28:     register XMSelect *s_ptr;   /* XMSelect pointer. */
  29: 
  30:     register int i;     /* Loop index. */
  31: 
  32:     XMSelect *select;       /* Newly created selection. */
  33: 
  34:     int label_length;       /* Label lenght in characters. */
  35:     int label_width;        /* Label width in pixels. */
  36: 
  37:     /*
  38:      * Check for NULL pointers!
  39:      */
  40:     if (label == NULL) {
  41:     _XMErrorCode = XME_ARG_BOUNDS;
  42:     return(XM_FAILURE);
  43:     }
  44: 
  45:     /*
  46:      * Find the right pane.
  47:      */
  48:     p_ptr = _XMGetPanePtr(menu, p_num);
  49:     if (p_ptr == NULL) return(XM_FAILURE);
  50: 
  51:     /*
  52:      * Find the selection number one less than the one specified since that
  53:      * is the selection after which the insertion will occur.
  54:      */
  55:     s_ptr = _XMGetSelectionPtr(p_ptr, (s_num - 1));
  56:     if (s_ptr == NULL) return(XM_FAILURE);
  57: 
  58:     /*
  59:      * Calloc the XMSelect structure.
  60:      */
  61:     select = (XMSelect *)calloc(1, sizeof(XMSelect));
  62:     if (select == NULL) {
  63:     _XMErrorCode = XME_CALLOC;
  64:     return(XM_FAILURE);
  65:     }
  66: 
  67:     /*
  68:      * Determine label size.
  69:      */
  70:     label_length = strlen(label);
  71:     label_width = XQueryWidth(label, menu->s_fnt_info->id);
  72: 
  73:     /*
  74:      * Fill the XMSelect structure.
  75:      */
  76:     select->type = SELECTION;
  77:     select->active = active;
  78:     select->serial = -1;
  79:     select->label = label;
  80:     select->label_width = label_width;
  81:     select->label_length = label_length;
  82:     select->data = data;
  83:     select->parent_p = p_ptr;
  84: 
  85:     /*
  86:      * Insert the selection after the selection with the selection
  87:      * number one less than the desired number for the new selection.
  88:      */
  89:     insque(select, s_ptr);
  90: 
  91:     /*
  92:      * Update the selection count.
  93:      */
  94:     p_ptr->s_count++;
  95: 
  96:     /*
  97:      * Schedule a recompute.
  98:      */
  99:     menu->recompute = 1;
 100: 
 101:     /*
 102:      * Return the selection number just inserted.
 103:      */
 104:     _XMErrorCode = XME_NO_ERROR;
 105:     return(s_num);
 106: }

Defined functions