guimenu.cpp

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/***************************************************************************
                          menu.cpp -- menu management                            
                             -------------------                                         
    created              : Fri Aug 13 22:23:19 CEST 1999
    copyright            : (C) 1999 by Eric Espie                         
    email                : torcs@free.fr   
    version              : $Id$                                  
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include <stdio.h>
#include <stdlib.h>
#ifdef WIN32
#include <windows.h>
#endif
#include <GL/glut.h>

#include <tgfclient.h>
#include "gui.h"
#include "guimenu.h"

void
gfMenuInit(void)
{
}

void
GfuiMenuDefaultKeysAdd(void *scr)
{
    GfuiAddKey(scr, 9, "Select Next Entry", NULL, gfuiSelectNext, NULL);
    GfuiAddKey(scr, 13, "Perform Action", (void*)2, gfuiMouseAction, NULL);
    GfuiAddSKey(scr, GLUT_KEY_UP, "Select Previous Entry", NULL, gfuiSelectPrev, NULL);
    GfuiAddSKey(scr, GLUT_KEY_DOWN, "Select Next Entry", NULL, gfuiSelectNext, NULL);
    GfuiAddSKey(scr, GLUT_KEY_PAGE_UP, "Select Previous Entry", NULL, gfuiSelectPrev, NULL);
    GfuiAddSKey(scr, GLUT_KEY_PAGE_DOWN, "Select Next Entry", NULL, gfuiSelectNext, NULL);
    GfuiAddSKey(scr, GLUT_KEY_F1, "Help", scr, GfuiHelpScreen, NULL);
    GfuiAddSKey(scr, GLUT_KEY_F12, "Screen-Shot", NULL, GfuiScreenShot, NULL);
    
}

void *
GfuiMenuScreenCreate(const char *title)
{
    void    *scr;
    
    scr = GfuiScreenCreate();
    GfuiTitleCreate(scr, title, strlen(title));
    
    GfuiMenuDefaultKeysAdd(scr);
    
    return scr;
}

static void
dispInfo(void *cbinfo)
{
    GfuiVisibilitySet(((tMnuCallbackInfo*)cbinfo)->screen, ((tMnuCallbackInfo*)cbinfo)->labelId, 1);
}
static void
remInfo(void *cbinfo)
{
    GfuiVisibilitySet(((tMnuCallbackInfo*)cbinfo)->screen, ((tMnuCallbackInfo*)cbinfo)->labelId, 0);
}


int
GfuiMenuButtonCreate(void *scr, const char *text, const char *tip, void *userdata, tfuiCallback onpush)
{
    tMnuCallbackInfo *cbinfo;
    int xpos, ypos;
    int nbItems = ((tGfuiScreen*)scr)->nbItems++;
    int bId;
    
    if (nbItems < 11) {
        xpos = 320;
        ypos = 380 - 30 * nbItems;
    } else {
        if (nbItems > 22) {
            GfTrace("Too many items in that menu !!!\n");
            return -1;
        }
        xpos = 380;
        ypos = 380 - 30 * (nbItems - 11);
    }
    
    cbinfo = (tMnuCallbackInfo*)calloc(1, sizeof(tMnuCallbackInfo));
    cbinfo->screen = scr;
    cbinfo->labelId = GfuiTipCreate(scr, tip, strlen(tip));
    
    GfuiVisibilitySet(scr, cbinfo->labelId, 0);
    
    bId = GfuiButtonCreate(scr,
                text,
                GFUI_FONT_LARGE,
                xpos, ypos, GFUI_BTNSZ, GFUI_ALIGN_HC_VB, 0,
                userdata, onpush,
                (void*)cbinfo, dispInfo,
                remInfo);
    
    return bId;
}

int
GfuiMenuBackQuitButtonCreate(void *scr, const char *text, const char *tip, void *userdata, tfuiCallback onpush)
{
    tMnuCallbackInfo    *cbinfo;
    int         xpos, ypos;
    int         bId;
    
    xpos = 320;
    ypos = 40;

    cbinfo = (tMnuCallbackInfo*)calloc(1, sizeof(tMnuCallbackInfo));
    cbinfo->screen = scr;
    cbinfo->labelId = GfuiTipCreate(scr, tip, strlen(tip));

    GfuiVisibilitySet(scr, cbinfo->labelId, 0);
    
    bId = GfuiButtonCreate(scr,
            text,
            GFUI_FONT_LARGE,
            xpos, ypos, GFUI_BTNSZ, GFUI_ALIGN_HC_VB, 0,
            userdata, onpush,
            (void*)cbinfo, dispInfo,
            remInfo);

    GfuiAddKey(scr, (unsigned char)27, tip, userdata, onpush, NULL);

    return bId;
}