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/*
 *  The Mana World
 *  Copyright (C) 2004  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 <guichan/font.hpp>
#include <guichan/graphics.hpp>
#include <guichan/listmodel.hpp>

#include "colour.h"
#include "listbox.h"

#include "../configuration.h"

float ListBox::mAlpha = config.getValue("guialpha", 0.8);

ListBox::ListBox(gcn::ListModel *listModel):
    gcn::ListBox(listModel)
{
}

void ListBox::draw(gcn::Graphics *graphics)
{
    if (!mListModel)
        return;

    if (config.getValue("guialpha", 0.8) != mAlpha)
        mAlpha = config.getValue("guialpha", 0.8);

    bool valid;
    const int red = (textColour->getColour('H', valid) >> 16) & 0xFF;
    const int green = (textColour->getColour('H', valid) >> 8) & 0xFF;
    const int blue = textColour->getColour('H', valid) & 0xFF;
    const int alpha = mAlpha * 255;

    graphics->setColor(gcn::Color(red, green, blue, alpha));
    graphics->setFont(getFont());

    const int fontHeight = getFont()->getHeight();

    // Draw rectangle below the selected list element
    if (mSelected >= 0)
        graphics->fillRectangle(gcn::Rectangle(0, fontHeight * mSelected,
                                               getWidth(), fontHeight));

    // Draw the list elements
    graphics->setColor(gcn::Color(0, 0, 0, 255));
    for (int i = 0, y = 0; i < mListModel->getNumberOfElements();
         ++i, y += fontHeight)
    {
        graphics->drawText(mListModel->getElementAt(i), 1, y);
    }
}

void ListBox::mouseDragged(gcn::MouseEvent &event)
{
    // Pretend mouse is pressed continuously while dragged. Causes list
    // selection to be updated as is default in many GUIs.
    mousePressed(event);
}