/*
 *  Desktop widget
 *  Copyright (c) 2009  The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  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
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "gui/widgets/desktop.h"

#include "gui/palette.h"
#include "gui/widgets/label.h"

#include "resources/image.h"
#include "resources/resourcemanager.h"
#include "resources/wallpaper.h"

#include "graphics.h"
#include "log.h"
#include "main.h"

Desktop::Desktop()
    : mWallpaper(0)
{
    addWidgetListener(this);

    Wallpaper::loadWallpapers();

    versionLabel = new Label(Main::version);
    add(versionLabel, 25, 2);
}

Desktop::~Desktop()
{
    if (mWallpaper)
        mWallpaper->decRef();
    delete versionLabel;
}

void Desktop::reloadWallpaper()
{
    Wallpaper::loadWallpapers();
    setBestFittingWallpaper();
}

void Desktop::widgetResized(const gcn::Event &event)
{
    setBestFittingWallpaper();
}

void Desktop::draw(gcn::Graphics *graphics)
{
    Graphics *g = static_cast<Graphics *>(graphics);

    if (!mWallpaper || (getWidth() > mWallpaper->getWidth() ||
                        getHeight() > mWallpaper->getHeight()))
    {
        // TODO: Color from palette
        g->setColor(gcn::Color(64, 64, 64));
        g->fillRectangle(gcn::Rectangle(0, 0, getWidth(), getHeight()));
    }

    if (mWallpaper)
    {
        g->drawImage(mWallpaper,
                (getWidth() - mWallpaper->getWidth()) / 2,
                (getHeight() - mWallpaper->getHeight()) / 2);
    }

    drawChildren(graphics);
}

void Desktop::setBestFittingWallpaper()
{
    const std::string wallpaperName =
            Wallpaper::getWallpaper(getWidth(), getHeight());

    Image *temp = ResourceManager::getInstance()->getImage(wallpaperName);

    if (temp)
    {
        if (mWallpaper)
            mWallpaper->decRef();
        mWallpaper = temp;
    }
    else
    {
        logger->log("Couldn't load %s as wallpaper", wallpaperName.c_str());
    }
}