QTfrontend/model/ThemeModel.cpp
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 */
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/**
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 * @file
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 * @brief ThemeModel class implementation
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 */
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#include "ThemeModel.h"
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ThemeModel::ThemeModel(QObject *parent) :
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    QAbstractListModel(parent)
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{
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    m_data = QList<QMap<int, QVariant> >();
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}
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int ThemeModel::rowCount(const QModelIndex &parent) const
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{
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    if(parent.isValid())
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        return 0;
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    else
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        return m_data.size();
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}
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QVariant ThemeModel::data(const QModelIndex &index, int role) const
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{
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    if(index.column() > 0 || index.row() >= m_data.size())
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        return QVariant();
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    else
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        return m_data.at(index.row()).value(role);
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}
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void ThemeModel::loadThemes()
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{
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    beginResetModel();
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    DataManager & datamgr = DataManager::instance();
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    QStringList themes =
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        datamgr.entryList("Themes", QDir::AllDirs | QDir::NoDotAndDotDot);
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    m_data.clear();
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#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
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    m_data.reserve(themes.size());
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#endif
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    foreach (QString theme, themes)
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    {
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        // themes without icon are supposed to be hidden
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        QString iconpath =
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            datamgr.findFileForRead(QString("Themes/%1/icon.png").arg(theme));
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        if (!QFile::exists(iconpath))
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            continue;
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        QMap<int, QVariant> dataset;
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        // set name
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        dataset.insert(Qt::DisplayRole, theme);
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        // load and set icon
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        QIcon icon(iconpath);
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        dataset.insert(Qt::DecorationRole, icon);
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        // load and set preview icon
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        QIcon preview(datamgr.findFileForRead(QString("Themes/%1/icon@2x.png").arg(theme)));
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        dataset.insert(Qt::UserRole, preview);
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        m_data.append(dataset);
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    }
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    endResetModel();
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}
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