/**********************************************************************************************
    Copyright (C) 2014-2015 Oliver Eichler <oliver.eichler@gmx.de>

    This program is free 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.

    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

**********************************************************************************************/

#ifndef CPROGRESSDIALOG_H
#define CPROGRESSDIALOG_H

#include <QDialog>
#include <QElapsedTimer>
#include <QStack>

#include "ui_IProgressDialog.h"

class QTimer;

#define PROGRESS_SETUP(lbl, min, max, parent) CProgressDialog progress(lbl, min, max, parent);

#define PROGRESS(x, cmd)        \
  progress.setValue(x);         \
  if (progress.wasCanceled()) { \
    cmd;                        \
  }

class CProgressDialog : public QDialog, private Ui::IProgressDialog {
  Q_OBJECT
 public:
  CProgressDialog(const QString text, int min, int max, QWidget* parent);
  virtual ~CProgressDialog();

  static CProgressDialog* self();

  static void setAllVisible(bool yes);

  void setValue(int val);

  bool wasCanceled();

  void enableCancel(bool yes);

 public slots:
  void reject() override;

 protected:
  void showEvent(QShowEvent*) override;

 private:
  void pause();
  void goOn();

  static QStack<QPointer<CProgressDialog>> stackSelf;
  QElapsedTimer time;
  QTimer* timer;
  qint32 timeElapsed = 0;
};

#endif  // CPROGRESSDIALOG_H
