maplistselector.cpp

//------------------------------------------------------------------------------
// maplistselector.cpp
//------------------------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301  USA
//
//------------------------------------------------------------------------------
// Copyright (C) 2019 Pol Marcet Sardà <polmarcetsarda@gmail.com>
//------------------------------------------------------------------------------
#include "maplistselector.h"

#include "commongui.h"
#include "modreader.h"

#include <QFileInfo>
#include <QMenu>
#include <QScopedPointer>
#include <QSharedPointer>
#include <QTimer>

MapEntry::MapEntry(const QString &name, const QString &originalFile, const bool &isIwad)
{
        this->name = name;
        this->originalFile = originalFile;
        this->isIwad = isIwad;
}

DClass<MapListSelector> : public Ui::MapListSelector
{
public:
        QStringList paths;
        QList<MapEntry> mapList;
        QScopedPointer<QTimer> checkWadTimer;
};

DPointeredNoCopy(MapListSelector)

MapListSelector::MapListSelector(QWidget *parent) : QDialog(parent)
{
        d->checkWadTimer.reset(new QTimer);

        d->setupUi(this);

        connect(d->checkWadTimer.data(), SIGNAL(timeout()), this, SLOT(performCheckStep()));
}

MapListSelector::~MapListSelector()
{
}

void MapListSelector::addPaths(const QStringList &paths)
{
        d->paths << paths;
        d->progressBar->setMaximum(d->progressBar->value() + paths.size());
        setIfFinishedStateIsEnabled(false);
        d->checkWadTimer->start(0);
}

const QStringList MapListSelector::selectedMaps()
{
        QStringList tempSelectedMapList;
        for (int i = 0; i < d->listMapsWidget->count(); ++i)
        {
                QListWidgetItem *item = d->listMapsWidget->item(i);
                if (item->checkState() == Qt::Checked)
                        tempSelectedMapList << item->text();
        }
        return tempSelectedMapList;
}

void MapListSelector::performCheckStep()
{
        if (d->paths.isEmpty())
        {
                d->checkWadTimer->stop();
                setMapsOfCheckableList(d->mapList);
                setIfFinishedStateIsEnabled(true);
                return;
        }
        QString path = d->paths.takeFirst();
        QSharedPointer<ModReader> modReader = ModReader::create(path);
        if (!modReader.isNull() && modReader->load())
        {
                for (const QString &tempMap : modReader->getAllMaps())
                {
                        addEntryToMapList(MapEntry(tempMap, QFile(path).fileName(), modReader->isIwad()));
                }
        }
        d->progressBar->setValue(d->progressBar->value() + 1);
}

void MapListSelector::addEntryToMapList(const MapEntry &newEntry)
{
        bool equalEntryFound = false;
        for (int i = 0; i < d->mapList.size(); ++i)
        {
                if (d->mapList[i].name == newEntry.name)
                {
                        d->mapList.replace(i, newEntry);
                        equalEntryFound = true;
                }
        }
        if (!equalEntryFound)
                d->mapList.append(newEntry);
}

void MapListSelector::setMapsOfCheckableList(const QList<MapEntry> &list)
{
        d->listMapsWidget->clear();
        for (const MapEntry &mapEntry : list)
        {
                auto item = new QListWidgetItem(mapEntry.name, d->listMapsWidget);
                item->setFlags(item->flags() | Qt::ItemIsUserCheckable);
                item->setCheckState(Qt::Checked);
                if (mapEntry.isIwad)
                {
                        item->setBackground(Qt::lightGray);
                        item->setForeground(Qt::black);
                }
                item->setToolTip("File: " + mapEntry.originalFile);
        }
}

void MapListSelector::setIfFinishedStateIsEnabled(const bool &state)
{
        d->btnAdd->setEnabled(state);
        d->checkAll->setEnabled(state);
        d->descriptionSelect->setVisible(state);
        d->listMapsWidget->setVisible(state);
        d->descriptionLoading->setVisible(!state);
        d->progressBar->setVisible(!state);
        adjustSize();
}

void MapListSelector::accept()
{
        done(Accepted);
}

void MapListSelector::reject()
{
        d->listMapsWidget->clear();
        d->checkWadTimer->stop();
        done(Rejected);
}

void MapListSelector::selectAll()
{
        Qt::CheckState checkState = d->checkAll->checkState();
        for (int i = 0; i < d->listMapsWidget->count(); ++i)
                d->listMapsWidget->item(i)->setCheckState(checkState);
}

void MapListSelector::listItemChanged()
{
        QStringList checkedMaps = selectedMaps();
        if (checkedMaps.size() > 0 && checkedMaps.size() < d->listMapsWidget->count())
                d->checkAll->setCheckState(Qt::PartiallyChecked);
        else
        {
                d->checkAll->setCheckState((checkedMaps.size() == 0) ?
                        Qt::Unchecked : Qt::Checked);
        }
}

void MapListSelector::showContextMenu(const QPoint &pos)
{
        QPoint globalPos = d->listMapsWidget->mapToGlobal(pos);

        QMenu myMenu;
        myMenu.addAction(tr("Invert selection"), this, SLOT(invertSelection()));
        myMenu.exec(globalPos);
}

void MapListSelector::invertSelection()
{
        for (int i = 0; i < d->listMapsWidget->count(); ++i)
        {
                QListWidgetItem *item = d->listMapsWidget->item(i);
                if (item->isSelected())
                        item->setCheckState(item->checkState() == Qt::Unchecked ?
                                Qt::Checked : Qt::Unchecked);
        }
}