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/***************************************************************************
 *   Copyright (C) 2008 by Douglas Boffey                                  *
 *                                                                         *
 *       DougABoffey@netscape.net                                          *
 *   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.                                   *
 *                                                                         *
 *   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 <cstring>

#include <guichan/font.hpp>

#include "text.h"
#include "textmanager.h"

#include "gui/gui.h"

int Text::mInstances = 0;

Text::Text(const std::string &text, int x, int y,
           gcn::Graphics::Alignment alignment, gcn::Color colour) :
    mText(text), mColour(colour)
{
    if (textManager == 0)
    {
        textManager = new TextManager();
    }
    ++mInstances;
    mHeight = gui->getFont()->getHeight();
    mWidth = gui->getFont()->getWidth(text);
    switch (alignment)
    {
        case gcn::Graphics::LEFT:
            mXOffset = 0;
            break;
        case gcn::Graphics::CENTER:
            mXOffset = mWidth / 2;
            break;
        case gcn::Graphics::RIGHT:
            mXOffset = mWidth;
            break;
    }
    mX = x - mXOffset;
    mY = y;
    textManager->addText(this);
}

void Text::adviseXY(int x, int y)
{
    textManager->moveText(this, x - mXOffset, y);
}

Text::~Text()
{
    textManager->removeText(this);
    if (--mInstances == 0)
    {
        delete textManager;
        textManager = 0;
    }
}

void Text::draw(Graphics *graphics, int xOff, int yOff)
{
    graphics->setFont(gui->getFont());

    // Text shadow
    graphics->setColor(gcn::Color(0, 0, 0));
    graphics->drawText(mText, mX - xOff + 1, mY - yOff + 1,
              gcn::Graphics::LEFT);

    // Text outline
    graphics->drawText(mText, mX - xOff + 1, mY - yOff,
              gcn::Graphics::LEFT);
    graphics->drawText(mText, mX - xOff - 1, mY - yOff,
              gcn::Graphics::LEFT);
    graphics->drawText(mText, mX - xOff, mY - yOff + 1,
              gcn::Graphics::LEFT);
    graphics->drawText(mText, mX - xOff, mY - yOff - 1,
              gcn::Graphics::LEFT);

    graphics->setColor(mColour);
    graphics->drawText(mText, mX - xOff, mY - yOff, gcn::Graphics::LEFT);
}

FlashText::FlashText(const std::string &text, int x, int y,
                     gcn::Graphics::Alignment alignment, gcn::Color colour) :
    Text(text, x, y, alignment, colour),
    mTime(0)
{
}

void FlashText::draw(Graphics *graphics, int xOff, int yOff)
{
    if (mTime)
    {
        if ((--mTime & 4) == 0)
        {
            return;
        }
    }
    Text::draw(graphics, xOff, yOff);
}