1 files changed, 69 insertions, 0 deletions
diff --git a/options/slider.hpp b/options/slider.hpp
new file mode 100644
index 00000000..1d02f17f
--- /dev/null
+++ b/options/slider.hpp
@@ -0,0 +1,69 @@
+/* Copyright (c) 2016 Stanislaw Halik
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ */
+
+#pragma once
+
+#include "export.hpp"
+#include <QMetaType>
+#include <QDataStream>
+#include <QDebug>
+
+namespace options
+{
+    class OPENTRACK_OPTIONS_EXPORT slider_value final
+    {
+        float cur_, min_, max_;
+    public:
+        slider_value(float cur, float min, float max);
+
+        template<typename t, typename u, typename v> slider_value(t cur, u min, v max) :
+            cur_(float(cur)),
+            min_(float(min)),
+            max_(float(max))
+        {}
+
+        slider_value(const slider_value& v);
+        slider_value();
+        slider_value& operator=(const slider_value& v);
+        bool operator==(const slider_value& v) const;
+        operator float() const { return cur_; }
+        double cur() const { return double(cur_); }
+        double min() const { return double(min_); }
+        double max() const { return double(max_); }
+        slider_value update_from_slider(int pos, int q_min, int q_max) const;
+        int to_slider_pos(int q_min, int q_max) const;
+    };
+}
+
+QT_BEGIN_NAMESPACE
+
+inline QDebug operator << (QDebug dbg, const options::slider_value& val)
+{
+    return dbg << val.cur();
+}
+
+inline QDataStream& operator << (QDataStream& out, const options::slider_value& v)
+{
+    out << float(v.cur())
+        << float(v.min())
+        << float(v.max());
+    return out;
+}
+
+inline QDataStream& operator >> (QDataStream& in, options::slider_value& v)
+{
+    float cur, min, max;
+    in >> cur;
+    in >> min;
+    in >> max;
+    v = options::slider_value(cur, min, max);
+    return in;
+}
+
+QT_END_NAMESPACE
+
+Q_DECLARE_METATYPE(options::slider_value)