/*
 * Copyright (C) 2008, Pino Toscano <pino@kde.org>
 *
 * 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, 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include "navigationtoolbar.h"

#include <poppler-qt4.h>

#include <QtGui/QAction>
#include <QtGui/QComboBox>

NavigationToolBar::NavigationToolBar(QWidget *parent)
    : QToolBar(parent)
{
    m_firstAct = addAction(tr("First"), this, SLOT(slotGoFirst()));
    m_prevAct = addAction(tr("Previous"), this, SLOT(slotGoPrev()));
    m_pageCombo = new QComboBox(this);
    connect(m_pageCombo, SIGNAL(activated(int)), this, SLOT(slotComboActivated(int)));
    addWidget(m_pageCombo);
    m_nextAct = addAction(tr("Next"), this, SLOT(slotGoNext()));
    m_lastAct = addAction(tr("Last"), this, SLOT(slotGoLast()));

    documentClosed();
}

NavigationToolBar::~NavigationToolBar()
{
}

void NavigationToolBar::documentLoaded()
{
    const int pageCount = document()->numPages();
    for (int i = 0; i < pageCount; ++i) {
        m_pageCombo->addItem(QString::number(i));
    }
    m_pageCombo->setEnabled(true);
}

void NavigationToolBar::documentClosed()
{
    m_firstAct->setEnabled(false);
    m_prevAct->setEnabled(false);
    m_nextAct->setEnabled(false);
    m_lastAct->setEnabled(false);
    m_pageCombo->clear();
    m_pageCombo->setEnabled(false);
}

void NavigationToolBar::pageChanged(int page)
{
    const int pageCount = document()->numPages();
    m_firstAct->setEnabled(page > 0);
    m_prevAct->setEnabled(page > 0);
    m_nextAct->setEnabled(page < (pageCount - 1));
    m_lastAct->setEnabled(page < (pageCount - 1));
    m_pageCombo->setCurrentIndex(page);
}

void NavigationToolBar::slotGoFirst()
{
    setPage(0);
}

void NavigationToolBar::slotGoPrev()
{
    setPage(page() - 1);
}

void NavigationToolBar::slotGoNext()
{
    setPage(page() + 1);
}

void NavigationToolBar::slotGoLast()
{
    setPage(document()->numPages() - 1);
}

void NavigationToolBar::slotComboActivated(int index)
{
    setPage(index);
}

#include "navigationtoolbar.moc"