RecentFileHandler.cpp

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/*  Copyright (C) 2012 Jens-Malte Gottfried

    This file is part of Tuchulcha.

    Tuchulcha 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 3 of the License, or
    (at your option) any later version.

    Tuchulcha 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 Tuchulcha.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "RecentFileHandler.h"

#include <QAction>
#include <QSettings>
#include <QFileInfo>
#include <QMenu>

RecentFileHandler::RecentFileHandler(QObject* pp) : QObject(pp) {
}

void RecentFileHandler::_openRecentFile() {
QAction *action = qobject_cast<QAction *>(sender());
    if (action) {
        emit openFile(action->data().toString());
    }
}

void RecentFileHandler::registerRecentFileEntries(QMenu *menu) {
    _separatorAct = menu->addSeparator();
    for (int i = 0; i < _maxRecentFiles; ++i) {
        _recentFileActs[i] = new QAction(this);
        _recentFileActs[i]->setIcon(QIcon::fromTheme(
            "document-open-recent",QIcon(":/icons/document-open-recent.png")));
        _recentFileActs[i]->setVisible(false);
        connect(_recentFileActs[i],
                SIGNAL(triggered()), SLOT(_openRecentFile()));
        menu->addAction(_recentFileActs[i]);
    }
    _updateRecentFileActions();
}

void RecentFileHandler::_updateRecentFileActions() {
    QSettings settings;
    QStringList files = settings.value("recentFileList").toStringList();

    int numRecentFiles = qMin(files.size(), (int)_maxRecentFiles);

    for (int i = 0; i < numRecentFiles; ++i) {
        QString text = QString("&%1 %2")
            .arg(i + 1).arg(_strippedName(files[i]));
        _recentFileActs[i]->setText(text);
        _recentFileActs[i]->setData(files[i]);
        _recentFileActs[i]->setStatusTip(
                tr("Open recent file \"%1\"").arg(files[i]));
        _recentFileActs[i]->setVisible(true);
    }
    for (int j = numRecentFiles; j < _maxRecentFiles; ++j)
        _recentFileActs[j]->setVisible(false);

    _separatorAct->setVisible(numRecentFiles > 0);
}

QString RecentFileHandler::_strippedName(QString fullFileName) {
    return QFileInfo(fullFileName).fileName();
}

void RecentFileHandler::setCurrentFile(QString fileName) {
    if (fileName.isEmpty())
        return;

    QSettings settings;
    QStringList files = settings.value("recentFileList").toStringList();
    QString fname = QFileInfo(fileName).absoluteFilePath();
    files.removeAll(fname);
    files.prepend(fname);
    while (files.size() > _maxRecentFiles)
        files.removeLast();

    settings.setValue("recentFileList", files);

    _updateRecentFileActions();
}