/***************************************************************************
 *   Copyright (C) 2006 by Ilya Kotov                                      *
 *   forkotov02@hotmail.ru                                                 *
 *                                                                         *
 *   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 <QPainter>
#include <math.h>

#include "skin.h"

#include "symboldisplay.h"

SymbolDisplay::SymbolDisplay ( QWidget *parent, int digits )
        : PixmapWidget ( parent ), m_digits ( digits ), m_text(), m_max(0)
{
    m_alignment = Qt::AlignRight;
    m_skin = Skin::instance();
    connect ( m_skin, SIGNAL ( skinChanged() ), this, SLOT (draw()));
    draw();
    for (int i=0; i<m_digits; ++i)
#if defined(Q_OS_FREEBSD) || defined(Q_OS_WIN32) || defined (Q_OS_MAC)
        m_max += 9 * (int) pow(10,i);
#else
        m_max += 9 * (int) exp10(i);
#endif
}


SymbolDisplay::~SymbolDisplay()
{}

void SymbolDisplay::display (const QString& str)
{
    m_text = str;
    if (!str.isEmpty())
        draw();
}

void SymbolDisplay::draw()
{
    QString str = m_text;
    QPixmap bg = m_skin->getLetter ( ' ' );
    int w = bg.size().width();
    int h = bg.size().height();
    QPixmap tmp ( m_digits*w,h );
    QPainter paint ( &tmp );
    int j;
    for ( int i = 0; i < m_digits; ++i )
    {
        if (m_alignment == Qt::AlignRight) // TODO: add align Center
        {
            j = str.size() -1 - i;
            if ( j >= 0 )
                paint.drawPixmap ( ( m_digits-1-i ) *w,0,m_skin->getLetter ( str.at ( j ) ) );
            else
                paint.drawPixmap ( ( m_digits-1-i ) *w,0,m_skin->getLetter ( ' ' ) );
        }
        else
        {
            if (i < str.size())
                paint.drawPixmap ( i * w,0,m_skin->getLetter ( str.at ( i ) ) );
            else
                paint.drawPixmap ( i * w,0,m_skin->getLetter ( ' ' ) );
            ;
        }
    }
    setPixmap(tmp);
}

void SymbolDisplay::display(int val)
{
    if (val < m_max)
        display(QString::number(val));
    else
        display(QString("%1h").arg(val/100));
}

