Scale UI component, used in launcher

src/blackgui/components/scalescreenfactor.h

@@ -0,0 +1,59 @@
+/* Copyright (C) 2018
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKGUI_COMPONENTS_SCALESCREENFACTOR_H
+#define BLACKGUI_COMPONENTS_SCALESCREENFACTOR_H
+
+#include "blackgui/blackguiexport.h"
+#include <QFrame>
+#include <QScopedPointer>
+
+namespace Ui { class CScaleScreenFactor; }
+namespace BlackGui
+{
+    namespace Components
+    {
+        /**
+         * UI to scale screen factor
+         */
+        class BLACKGUI_EXPORT CScaleScreenFactor : public QFrame
+        {
+            Q_OBJECT
+
+        public:
+            //! Constructor
+            explicit CScaleScreenFactor(QWidget *parent = nullptr);
+
+            //! Destructor
+            virtual ~CScaleScreenFactor();
+
+            //! Minimum/maximum values
+            void setMinMax(int min, int max);
+
+            //! Scale factor
+            qreal getScaleFactor() const;
+
+            //! Scale factor as string
+            QString getScaleFactorAsString() const;
+
+        private:
+            //! Slider value changed
+            void onSliderChanged(int value);
+
+            //! Line edit change
+            void onEditFinished();
+
+            QScopedPointer<Ui::CScaleScreenFactor> ui;
+        };
+    } // ns
+}// ns
+
+#endif // guard