/***************************************************************************
 *   Copyright (C) 2008 by David Cuadrado                                  *
 *   krawek@gmail.com                                                      *
 *                                                                         *
 *   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 "footerwidget.h"
#include "headerwidget.h"
#include "buttonarea.h"
#include "aerobutton.h"

#include "mainwindow.h"

#include <QApplication>
#include <QMouseEvent>
#include <QHBoxLayout>

namespace SIFPrivate {

FooterWidget::FooterWidget(HeaderWidget *header, QWidget *parent)
 : QWidget(parent), m_header(header), m_dragging(false)
{
    setAutoFillBackground(true);
    
    m_buttonArea = new ButtonArea;
    
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addStretch(1);
    layout->addWidget(m_buttonArea);
    layout->addStretch(1);
}


FooterWidget::~FooterWidget()
{
}

void FooterWidget::setBackground(const QBrush &background)
{
    QPalette palette = this->palette();
    palette.setBrush(QPalette::Window, background);
    
    setPalette(palette);
}

SIF::AeroButton *FooterWidget::addButton(const QString &title, const QIcon &icon)
{
    SIF::AeroButton *button = m_buttonArea->addButton(title, icon);
    button->setIconSize(QSize(22,22));
    
    return button;
}

void FooterWidget::resizeEvent(QResizeEvent *e)
{
    QWidget::resizeEvent(e);
    
    QRect br = rect();
    QLinearGradient gradient(0, 0, 0, br.height());
    
    gradient.setColorAt(0.0, m_header->borderColor());
    gradient.setColorAt(0.1, m_header->shadowColor());
    
    
    gradient.setColorAt(0.5, m_header->borderColor());
    gradient.setColorAt(0.55, m_header->borderColor());
    
    gradient.setColorAt(0.9, m_header->shadowColor());
    gradient.setColorAt(1.0, m_header->borderColor());
    
    setBackground(gradient);
}

void FooterWidget::mousePressEvent(QMouseEvent *e)
{
    if (e->button() == Qt::LeftButton)
    {
        SIF::MainWindow *mw = qobject_cast<SIF::MainWindow *>(qApp->activeWindow());
        
        if(mw)
        {
            m_dragging = true;
            m_dragPosition = e->globalPos() - mw->frameGeometry().topLeft();
            e->accept();
        }
    }
    
    QWidget::mousePressEvent(e);
}

void FooterWidget::mouseMoveEvent(QMouseEvent *e)
{
    if(m_dragging && e->buttons() & Qt::LeftButton)
    {
        SIF::MainWindow *mw = qobject_cast<SIF::MainWindow *>(qApp->activeWindow());
        
        if(mw)
        {
            mw->move(e->globalPos() - m_dragPosition);
            e->accept();
        }
    }
    
    QWidget::mousePressEvent(e);
}

void FooterWidget::mouseReleaseEvent(QMouseEvent *e)
{
    m_dragging = false;
    QWidget::mouseReleaseEvent(e);
}

}