--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MainWindow.h	Thu Nov 27 18:40:28 2025 +0100
@@ -0,0 +1,127 @@
+//////////////////////////////////////////////////////////////////////////////
+/// \file   MainWindow.h
+/// \brief  GUI for OSTC Companion.
+/// \author JD Gascuel.
+///
+/// \copyright (c) 2011-2014 JD Gascuel. All rights reserved.
+/// $Id$
+//////////////////////////////////////////////////////////////////////////////
+//
+// BSD 2-Clause License:
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+//    this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+// THE POSSIBILITY OF SUCH DAMAGE.
+//
+//////////////////////////////////////////////////////////////////////////////
+// HISTORY
+//  2013-03-17 : [jDG] Initial version.
+//  2013-03-26 : [jDG] Added scan feature for HW factory programming.
+//  2014-07-07 : [jDG] Cleanups for Subsurface google-summer-of-code.
+//  2014-07-25 : [jDG] BSD 2-clause license.
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+namespace Ui {
+class MainWindow;
+}
+class HardwareOperations;
+class QProgressBar;
+
+//////////////////////////////////////////////////////////////////////////////
+/// \brief  GUI for OSTC Companion.
+///
+/// Implement the *Companion* user interface.
+///
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+    Ui::MainWindow*     _ui;    ///< Compiled interface.
+    HardwareOperations* _op;    ///< Driver for the connected dive computer.
+
+    //------------------------------------------------------------------------
+    /// \brief Update buttons enable/disable state.
+    /// According to connection status (not/normal/service), and high level
+    /// commands supported by a given computer model.
+    void updateStatus();
+
+    //------------------------------------------------------------------------
+    /// \brief Display a message on the embedded console.
+    ///
+    void statusMessage(const QString &msg);
+    friend class LogWindow;
+
+    //------------------------------------------------------------------------
+    /// \brief Manage asynchronous ProgressEvent events.
+    ///
+    bool event(QEvent *e) override;
+
+public:
+    //////////////////////////////////////////////////////////////////////////
+    /// \brief Constructor.
+    ///
+    /// Starts everything, and instanciate the driver found in settings.
+    MainWindow();
+
+    //------------------------------------------------------------------------
+    /// \brief Destructor.
+    /// Release interface and driver.
+    ~MainWindow();
+
+    //------------------------------------------------------------------------
+    /// \brief Handle Language changes.
+    /// Re-apply translations to all interface elements.
+    void retranslate();
+
+public slots:
+    /// \brief User changed computer model.
+    void changeTypeSlot();
+
+    /// \brief Pop SettingsDialog preferences interface.
+    void settingsSlot();
+
+    /// \brief Try to connect to the device.
+    void connectSlot();
+
+    /// \brief Try to set Date & Time on the connected device.
+    void dateSlot();
+
+    /// \brief Try to change custom text on the connected device.
+    void nameSlot();
+
+    /// \brief Try to set custom image on the connected device.
+    void iconSlot();
+
+    /// \brief Try to upgrade firmware of the connected device.
+    void upgradeSlot();
+
+    /// \brief Close current connection to the device.
+    void closeSlot();
+private slots:
+    void on_signalButton_clicked();
+    void on_editLog_clicked();
+};
+
+#endif // MAINWINDOW_H