Added gui widgets as own classes, part I

bcthemeswitchbutton.h

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+/***************************************************************************
+
+  BionxControl
+  © 2025 -2026 christoph holzheuer
+  christoph.holzheuer@gmail.com
+
+  Using:
+
+  mhs_can_drv.c
+  © 2011 - 2023 by MHS-Elektronik GmbH & Co. KG, Germany
+  Klaus Demlehner, klaus@mhs-elektronik.de
+  @see www.mhs-elektronik.de
+
+  Based on Bionx data type descriptions from:
+
+  BigXionFlasher USB V 0.2.4 rev. 97
+  © 2011-2013 by Thomas Koenig <info@bigxionflasher.org>
+  @see www.bigxionflasher.org
+
+  Bionx Bike Info
+  © 2018 Thorsten Schmidt (tschmidt@ts-soft.de)
+  @see www.ts-soft.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.
+  @see https://github.com/bikemike/bionx-bikeinfo
+
+ ***************************************************************************/
+
+
+#ifndef BCTHEMESWITCHBUTTON_H
+#define BCTHEMESWITCHBUTTON_H
+
+#include <QPushButton>
+
+#include <bcdriver.h>
+
+
+/**
+ * @brief Einfaches Buttonwidget, um zwischen Dark- und Lightmode
+ * zu wechseln
+ */
+
+class BCThemeSwitchButton : public QPushButton
+{
+  Q_OBJECT
+
+public:
+
+  explicit BCThemeSwitchButton(QWidget *parent = nullptr);
+  void setDarkMode( bool isDark );
+
+signals:
+
+  void themeChanged(bool isDark);
+
+private slots:
+
+  void toggleMode();
+
+private:
+
+  void updateIcon();
+
+  bool _isDarkMode{false};
+
+};
+
+
+#endif // BCTHEMESWITCHBUTTON_H