/*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@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; version 2 of the License
 *
 * 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 St, Fifth Floor, Boston, MA  02110-1301  USA
 */

/**
 * @file
 * @brief AbstractPage class implementation
 */

#include "AbstractPage.h"
#include <QLabel>
#include <QSize>
#include <QFontMetricsF>
#include <QDebug>

#include "qpushbuttonwithsound.h"

AbstractPage::AbstractPage(QWidget* parent)
{
    Q_UNUSED(parent);
    defautDesc = new QString();

    font14 = new QFont("MS Shell Dlg", 14);
}

void AbstractPage::initPage()
{
    QGridLayout * pageLayout = new QGridLayout(this);
    QHBoxLayout * bottomLeftLayout = new QHBoxLayout();
    pageLayout->addLayout(bottomLeftLayout, 1, 0);

    // stretch grid space for body and footer
    pageLayout->setColumnStretch(0,1);
    pageLayout->setColumnStretch(1,2);
    pageLayout->setColumnStretch(2,1);
    pageLayout->setRowStretch(0,1);
    pageLayout->setRowStretch(1,0);

    // add back/exit button
    btnBack = formattedButton(":/res/Exit.png", true);
    btnBack->setWhatsThis(tr("Go back"));
    bottomLeftLayout->addWidget(btnBack, 0, Qt::AlignBottom);

    // add body layout as defined by the subclass
    pageLayout->addLayout(bodyLayoutDefinition(), 0, 0, 1, 3);

    // add left footer layout
    QLayout * flld = footerLayoutLeftDefinition();
    if (flld != NULL)
        bottomLeftLayout->addLayout(flld, 0);

    descLabel = new QLabel();
    descLabel->setAlignment(Qt::AlignCenter);
    descLabel->setWordWrap(true);
    descLabel->setOpenExternalLinks(true);
    descLabel->setFixedHeight(60);
    descLabel->setStyleSheet("font-size: 16px");
    bottomLeftLayout->addWidget(descLabel);
    pageLayout->addWidget(descLabel, 1, 1);

    // add footer layout
    QLayout * fld = footerLayoutDefinition();
    if (fld != NULL)
        pageLayout->addLayout(fld, 1, 2);

    bottomLeftLayout->addStretch(1);

    // connect signals
    connect(btnBack, SIGNAL(clicked()), this, SIGNAL(goBack()));
    connectSignals();
}

QPushButtonWithSound * AbstractPage::formattedButton(const QString & name, bool hasIcon)
{
    QPushButtonWithSound * btn = new QPushButtonWithSound(this);

    if (hasIcon)
    {
        const QIcon& lp=QIcon(name);
        QSize sz = lp.actualSize(QSize(65535, 65535));
        btn->setIcon(lp);
        btn->setFixedSize(sz);
        btn->setIconSize(sz);
        btn->setFlat(true);
        btn->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
    }
    else
    {
        btn->setFont(*font14);
        btn->setText(name);
    }
    return btn;
}
QPushButton* AbstractPage::formattedSoundlessButton(const QString & name, bool hasIcon)
{
    QPushButton* btn = new QPushButton(this);

    if (hasIcon)
    {
        const QIcon& lp=QIcon(name);
        QSize sz = lp.actualSize(QSize(65535, 65535));
        btn->setIcon(lp);
        btn->setFixedSize(sz);
        btn->setIconSize(sz);
        btn->setFlat(true);
        btn->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
    }
    else
    {
        btn->setFont(*font14);
        btn->setText(name);
    }
    return btn;
}

QPushButtonWithSound * AbstractPage::addButton(const QString & name, QGridLayout * grid, int row, int column, int rowSpan, int columnSpan, bool hasIcon)
{
    QPushButtonWithSound * btn = formattedButton(name, hasIcon);
    grid->addWidget(btn, row, column, rowSpan, columnSpan);
    return btn;
}

QPushButtonWithSound * AbstractPage::addButton(const QString & name, QBoxLayout * box, int where, bool hasIcon)
{
    QPushButtonWithSound * btn = formattedButton(name, hasIcon);
    box->addWidget(btn, where);
    return btn;
}

QPushButton* AbstractPage::addSoundlessButton(const QString & name, QBoxLayout * box, int where, bool hasIcon)
{
    QPushButton* btn = formattedSoundlessButton(name, hasIcon);
    box->addWidget(btn, where);
    return btn;
}

void AbstractPage::setBackButtonVisible(bool visible)
{
    btnBack->setVisible(visible);
}

void AbstractPage::setButtonDescription(QString desc)
{
    descLabel->setText(desc);
}

void AbstractPage::setDefaultDescription(QString text)
{
    *defautDesc = text;
    descLabel->setText(text);
}

QString * AbstractPage::getDefaultDescription()
{
    return defautDesc;
}

void AbstractPage::triggerPageEnter()
{
    emit pageEnter();
}

void AbstractPage::triggerPageLeave()
{
    emit pageLeave();
}