PDF4QT/PdfForQtViewer/pdfrecentfilemanager.h

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2020-02-01 11:56:40 +01:00
// Copyright (C) 2020 Jakub Melka
//
// This file is part of PdfForQt.
//
// PdfForQt 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.
//
// PdfForQt 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 PDFForQt. If not, see <https://www.gnu.org/licenses/>.
#ifndef PDFRECENTFILEMANAGER_H
#define PDFRECENTFILEMANAGER_H
#include <QObject>
#include <QAction>
#include <array>
namespace pdfviewer
{
/// Recent file manager, manages list of recent files.
class PDFRecentFileManager : public QObject
{
Q_OBJECT
private:
using BaseClass = QObject;
static constexpr const int MAXIMUM_RECENT_FILES = 9;
static constexpr const int DEFAULT_RECENT_FILES = 5;
public:
explicit PDFRecentFileManager(QObject* parent);
/// Adds recent file to recent file list and updates the actions.
/// New recent file is added as first file.
/// \param fileName New recent file
void addRecentFile(QString fileName);
/// Returns a list of recent files
const QStringList& getRecentFiles() const { return m_recentFiles; }
/// Sets a list of recent files, and udpates manager
void setRecentFiles(QStringList recentFiles);
/// Returns a limit of recent files count
int getRecentFilesLimit() const { return m_recentFilesLimit; }
/// Sets a new limit of recent files count
void setRecentFilesLimit(int recentFilesLimit);
/// Returns list of recent files actions
const std::array<QAction*, MAXIMUM_RECENT_FILES>& getActions() const { return m_actions; }
static constexpr int getMinimumRecentFiles() { return 1; }
static constexpr int getDefaultRecentFiles() { return DEFAULT_RECENT_FILES; }
static constexpr int getMaximumRecentFiles() { return MAXIMUM_RECENT_FILES; }
signals:
void fileOpenRequest(QString fileName);
private:
/// Updates recent files actions / recent file list
void update();
/// Reaction on recent file action triggered
void onRecentFileActionTriggered();
int m_recentFilesLimit;
std::array<QAction*, MAXIMUM_RECENT_FILES> m_actions;
QStringList m_recentFiles;
};
} // namespace pdfviewer
#endif // PDFRECENTFILEMANAGER_H