loadingscreen.cpp

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/***************************************************************************

    file                 : loadingscreen.cpp
    created              : Sun Feb 25 00:34:46 /etc/localtime 2001
    copyright            : (C) 2000-2014 by Eric Espie, Bernhard Wymann
    email                : eric.espie@torcs.org
    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 <stdlib.h>
#ifdef WIN32
#include <windows.h>
#endif
#include <tgfclient.h>
#include <car.h>

static void *menuHandle = NULL;
#define TEXTLINES 23
static int rmTextId[TEXTLINES];
static char *rmTextLines[TEXTLINES] = {0};
static int rmCurText;

float black[4] = { 0.0, 0.0, 0.0, 0.0 };
float white[TEXTLINES][4];



static void rmDeativate(void * /* dummy */)
{
}


void RmLoadingScreenStart(const char *title, const char *bgimg)
{
    int i;
    int y;
    
    if (GfuiScreenIsActive(menuHandle)) {
        /* Already active */
        return;
    }
    
    if (menuHandle) {
        GfuiScreenRelease(menuHandle);
    }
    menuHandle = GfuiScreenCreateEx(black, NULL, NULL, NULL, rmDeativate, 0);
    
    GfuiTitleCreate(menuHandle, title, strlen(title));
    
    /* create TEXTLINES lines of text */
    for (i = 0, y = 400; i < TEXTLINES; i++, y -= 16) {
        white[i][0] = white[i][1] = white[i][2] = 1.0;
        white[i][3] = (float)i * 0.0421 + 0.2;
        rmTextId[i] = GfuiLabelCreateEx(menuHandle, "", white[i], GFUI_FONT_MEDIUM_C, 60, y, 
                        GFUI_ALIGN_HL_VB, 100);
        if (rmTextLines[i]) {
            /* free old text */
            free(rmTextLines[i]);
            rmTextLines[i] = NULL;
        }
    }
    
    rmCurText = 0;
    
    if (bgimg) {
        GfuiScreenAddBgImg(menuHandle, bgimg);
    }
    
    GfuiScreenActivate(menuHandle);
    GfuiDisplay();
}


void RmShutdownLoadingScreen(void)
{
    if (menuHandle) {
        GfuiScreenRelease(menuHandle);
        menuHandle = 0;
        // TODO: release rmTextLines here instead of in RmLoadingScreenStart, or both?
    }
}


void RmLoadingScreenSetText(const char *text)
{
    int i, j;
    
    GfOut("%s\n", text);
    
    if (menuHandle) {
        if (text) {
            if (rmTextLines[rmCurText]) {
                free(rmTextLines[rmCurText]);
            }
            rmTextLines[rmCurText] = strdup(text);
            rmCurText = (rmCurText + 1) % TEXTLINES;
        }
        
        i = rmCurText;
        j = 0;
        do {
            if (rmTextLines[i]) {
                GfuiLabelSetText(menuHandle, rmTextId[j], rmTextLines[i]);
            }
            j++;
            i = (i + 1) % TEXTLINES;
        } while (i != rmCurText);
        
        GfuiDisplay();
    }
}