QTfrontend/model/ThemeFilterProxyModel.cpp
author Wuzzy <Wuzzy2@mail.ru>
Tue, 23 Apr 2019 15:32:04 +0200
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Change theme to Nature if changing from background-only or hidden theme to a generated map type
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2018 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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/**
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 * @file
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 * @brief ThemeFilterProxyModel class implementation
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 */
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#include "ThemeModel.h"
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#include "ThemeFilterProxyModel.h"
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ThemeFilterProxyModel::ThemeFilterProxyModel(QObject *parent)
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    : QSortFilterProxyModel(parent)
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{
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    isFilteringDLC = false;
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    isFilteringHidden = false;
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    isFilteringBackground = false;
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}
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bool ThemeFilterProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex & sourceParent) const
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{
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    QModelIndex index = sourceModel()->index(sourceRow, 0, sourceParent);
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    bool searchOkay = true;
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    if(!filterRegExp().isEmpty())
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    {
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        // Check regular expression set by the theme chooser search
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        QString name = index.data(ThemeModel::ActualNameRole).toString();
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        int in = filterRegExp().indexIn(name);
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        searchOkay = in != -1;
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    }
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    if(isFilteringDLC || isFilteringHidden || isFilteringBackground)
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    {
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        bool isDLC = index.data(ThemeModel::IsDlcRole).toBool();
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        bool isHidden = index.data(ThemeModel::IsHiddenRole).toBool();
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        bool isBackground = index.data(ThemeModel::IsBackgroundThemeRole).toBool();
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        return ( ((isFilteringDLC && !isDLC) || !isFilteringDLC) &&
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                 ((isFilteringHidden && !isHidden) || !isFilteringHidden) &&
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                 ((isFilteringBackground && !isBackground) || !isFilteringBackground) ) &&
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               searchOkay;
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    }
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    else
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    {
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        return searchOkay;
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    }
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}
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void ThemeFilterProxyModel::setFilterDLC(bool enable)
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{
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    isFilteringDLC = enable;
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    invalidateFilter();
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}
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void ThemeFilterProxyModel::setFilterHidden(bool enable)
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{
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    isFilteringHidden = enable;
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    invalidateFilter();
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}
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void ThemeFilterProxyModel::setFilterBackground(bool enable)
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{
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    isFilteringBackground = enable;
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    invalidateFilter();
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};