gui.h

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/*
    Copyright © 2015-2019 by The qTox Project Contributors
 
    This file is part of qTox, a Qt-based graphical interface for Tox.
 
    qTox is libre software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    qTox 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with qTox.  If not, see <http://www.gnu.org/licenses/>.
*/
 
 
#pragma once
 
#include <QObject>
 
class QWidget;
 
class GUI : public QObject
{
    Q_OBJECT
public:
    static GUI& getInstance();
    static QWidget* getMainWidget();
    static void setEnabled(bool state);
    static void setWindowTitle(const QString& title);
    static void reloadTheme();
    static void showInfo(const QString& title, const QString& msg);
    static void showWarning(const QString& title, const QString& msg);
    static void showError(const QString& title, const QString& msg);
    static bool askQuestion(const QString& title, const QString& msg, bool defaultAns = false,
                            bool warning = true, bool yesno = true);
 
    static bool askQuestion(const QString& title, const QString& msg, const QString& button1,
                            const QString& button2, bool defaultAns = false, bool warning = true);
 
 
private:
    explicit GUI(QObject* parent = nullptr);
 
private slots:
    // Private implementation, those must be called from the GUI thread
    void _setEnabled(bool state);
    void _setWindowTitle(const QString& title);
    void _showInfo(const QString& title, const QString& msg);
    void _showWarning(const QString& title, const QString& msg);
    void _showError(const QString& title, const QString& msg);
    bool _askQuestion(const QString& title, const QString& msg, bool defaultAns = false,
                      bool warning = true, bool yesno = true);
    bool _askQuestion(const QString& title, const QString& msg, const QString& button1,
                      const QString& button2, bool defaultAns = false, bool warning = true);
 
signals:
    void themeReload();
};