gmenu.c

Graphviz - Graph Drawing Programs from AT&T Research and Lucent Bell Labs See doc/build.html for

/* $Id: gmenu.c,v 1.3 2006/06/27 12:43:47 ellson Exp $ $Revision: 1.3 $ */
/* vim:set shiftwidth=4 ts=8: */

/**********************************************************
*      This software is part of the graphviz package      *
*                http://www.graphviz.org/                 *
*                                                         *
*            Copyright (c) 1994-2004 AT&T Corp.           *
*                and is licensed under the                *
*            Common Public License, Version 1.0           *
*                      by AT&T Corp.                      *
*                                                         *
*        Information and Software Systems Research        *
*              AT&T Research, Florham Park NJ             *
**********************************************************/

/* Lefteris Koutsofios - AT&T Labs Research */

#include "common.h"
#include "g.h"
#include "gcommon.h"
#include "mem.h"

#define WMU widget->u.m

int GMcreatewidget (
    Gwidget_t *parent, Gwidget_t *widget, int attrn, Gwattr_t *attrp
) {
    int ai;

    for (ai = 0; ai < attrn; ai++) {
        switch (attrp[ai].id) {
        case G_ATTRUSERDATA:
            widget->udata = attrp[ai].u.u;
            break;
        default:
            Gerr (POS, G_ERRBADATTRID, attrp[ai].id);
            return -1;
        }
    }
    if (!(widget->w = CreatePopupMenu ())) {
        Gerr (POS, G_ERRCANNOTCREATEWIDGET);
        return -1;
    }
    WMU->count = 0;
    return 0;
}

int GMsetwidgetattr (Gwidget_t *widget, int attrn, Gwattr_t *attrp) {
    int ai;

    for (ai = 0; ai < attrn; ai++) {
        switch (attrp[ai].id) {
        case G_ATTRUSERDATA:
            widget->udata = attrp[ai].u.u;
            break;
        default:
            Gerr (POS, G_ERRBADATTRID, attrp[ai].id);
            return -1;
        }
    }
    return 0;
}

int GMgetwidgetattr (Gwidget_t *widget, int attrn, Gwattr_t *attrp) {
    int ai;

    for (ai = 0; ai < attrn; ai++) {
        switch (attrp[ai].id) {
        case G_ATTRUSERDATA:
            attrp[ai].u.u = widget->udata;
            break;
        default:
            Gerr (POS, G_ERRBADATTRID, attrp[ai].id);
            return -1;
        }
    }
    return 0;
}

int GMdestroywidget (Gwidget_t *widget) {
    DestroyMenu (widget->w);
    return 0;
}

int GMmenuaddentries (Gwidget_t *widget, int en, char **ep) {
    int ei;

    for (ei = 0; ei < en; ei++)
        AppendMenu (widget->w, MF_ENABLED | MF_STRING, WMU->count++, ep[ei]);
    return 0;
}

int GMmenudisplay (Gwidget_t *parent, Gwidget_t *widget) {
    MSG msg;
    POINT p;
    UINT flag;

    /* FIXME not only right button */
    menupoped = TRUE;
    menuselected = -1;
    GetCursorPos (&p);
    if (GetAsyncKeyState (VK_LBUTTON) < 0)
        flag = TPM_LEFTALIGN | TPM_LEFTBUTTON;
    else
        flag = TPM_LEFTALIGN | TPM_RIGHTBUTTON;
    TrackPopupMenu (widget->w, flag, p.x, p.y, 0, parent->w, NULL);
    PostMessage (parent->w, WM_COMMAND, 999, 0);
    if (!GetMessage(&msg, parent->w, WM_COMMAND, WM_COMMAND))
        panic1 (POS, "GMmenudisplay", "exit code in GetMessage");
    TranslateMessage(&msg);
    DispatchMessage(&msg);
    Gpopdownflag = TRUE;
    return menuselected;
}