root/branches/2.1/oldXMenu/DelSel.c

#include "copyright.h"

/* $Header: /cvsroot/emacs/emacs/oldXMenu/DelSel.c,v 1.1 1999/10/03 19:34:58 fx Exp $ */
/* Copyright    Massachusetts Institute of Technology    1985   */

/*
 * XMenu:       MIT Project Athena, X Window system menu package
 *
 *      XMenuDeleteSelection - Deletes a selection from an XMenu object.
 *
 *      Author:         Tony Della Fera, DEC
 *                      20-Nov-85
 *
 */

#include "XMenuInt.h"

int
XMenuDeleteSelection(display, menu, p_num, s_num)
    register Display *display;  /* Previously opened display. */
    register XMenu *menu;       /* Menu object to be modified. */
    register int p_num;         /* Pane number to be deleted. */
    register int s_num;         /* Selection number to be deleted. */
{
    register XMPane *p_ptr;     /* Pointer to pane being deleted. */
    register XMSelect *s_ptr;   /* Pointer to selections being deleted. */
        
    /*
     * Find the right pane.
     */
    p_ptr = _XMGetPanePtr(menu, p_num);
    if (p_ptr == NULL) return(XM_FAILURE);

    /*
     * Find the right selection.
     */
    s_ptr = _XMGetSelectionPtr(p_ptr, s_num);
    if (s_ptr == NULL) return(XM_FAILURE);

    /*
     * Remove the selection from the association table.
     */
    XDeleteAssoc(display, menu->assoc_tab, s_ptr->window);

    /*
     * Remove the selection from the parent pane's selection
     * list and update the selection count.
     */
    emacs_remque(s_ptr);
    p_ptr->s_count--;

    /*
     * Destroy the selection transparency.
     */
    if (s_ptr->window) XDestroyWindow(display, s_ptr->window);
    
    /*
     * Free the selection's XMSelect structure.
     */
    free(s_ptr);

    /*
     * Schedule a recompute.
     */
    menu->recompute = 1;

    /*
     * Return the selection number just deleted.
     */
    _XMErrorCode = XME_NO_ERROR;
    return(s_num);
}