/*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2004-2012 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 */

#include <QDialog>
#include <QVBoxLayout>
#include <QScrollArea>
#include <QPushButton>
#include <QToolButton>
#include <QWidgetItem>
#include <QModelIndex>
#include <QLabel>

#include "flowlayout.h"
#include "DataManager.h"
#include "ThemeModel.h"
#include "themeprompt.h"

ThemePrompt::ThemePrompt(QWidget* parent) : QDialog(parent)
{
    setModal(true);
    setWindowFlags(Qt::Sheet);
    setWindowModality(Qt::WindowModal);
    setMinimumSize(550, 430);
    resize(550, 430);
    setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);

    // Grid
    QVBoxLayout * dialogLayout = new QVBoxLayout(this);
    dialogLayout->setSpacing(0);

    // Help/prompt message at top
    QLabel * lblDesc = new QLabel(tr("Select a theme for this map"));
    lblDesc->setStyleSheet("color: #130F2A; background: #F6CB1C; border: solid 4px #F6CB1C; border-top-left-radius: 10px; border-top-right-radius: 10px; padding: auto 20px;");
    lblDesc->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    lblDesc->setFixedHeight(24);
    lblDesc->setMinimumWidth(0);

    // Scroll area and container for theme icons
    QWidget * themesContainer = new QWidget();
    FlowLayout * themesGrid = new FlowLayout();
    themesContainer->setLayout(themesGrid);
    QScrollArea * scrollArea = new QScrollArea();
    scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
    scrollArea->setObjectName("scrollArea");
    scrollArea->setStyleSheet("QScrollBar, #scrollArea { background-color: #130F2A; } #scrollArea { border-color: #F6CB1C; border-width: 3px; border-top-width: 0; border-style: solid; border-bottom-left-radius: 10px; border-bottom-right-radius: 10px; }");
    scrollArea->setWidgetResizable(true);
    scrollArea->setFrameShape(QFrame::NoFrame);
    scrollArea->setWidget(themesContainer);

    // Cancel button (closes dialog)
    QPushButton * btnCancel = new QPushButton(tr("Cancel"));
    btnCancel->setStyleSheet("padding: 5px; margin-top: 10px;");
    connect(btnCancel, SIGNAL(clicked()), this, SLOT(reject()));

    // Add elements to layouts
    dialogLayout->addWidget(lblDesc, 0);
    dialogLayout->addWidget(scrollArea, 1);
    dialogLayout->addWidget(btnCancel, 0, Qt::AlignLeft);

    // Tooltip label for theme name
    lblToolTip = new QLabel(this);

    // Add theme buttons
    ThemeModel * themes = DataManager::instance().themeModel();
    for (int i = 0; i < themes->rowCount(); i++)
    {
        QModelIndex index = themes->index(i, 0);
        QToolButton * btn = new QToolButton();
        bool dlc = themes->data(index, Qt::UserRole + 2).toBool();
        btn->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
        btn->setIcon(qVariantValue<QIcon>(themes->data(index, Qt::UserRole)));
        btn->setText((dlc ? "*" : "") + themes->data(index, Qt::DisplayRole).toString());
        btn->setIconSize(QSize(60, 60));
        btn->setProperty("themeID", QVariant(i));
        btn->setStyleSheet("padding: 2px;");
        connect(btn, SIGNAL(clicked()), this, SLOT(themeClicked()));
        themesGrid->addWidget(btn);
    }
}

// When a theme is selected
void ThemePrompt::themeClicked()
{
    QWidget * btn = (QWidget*)sender();
    done(btn->property("themeID").toInt() + 1); // Since returning 0 means canceled
}