SDK: Add ScrollAreaWidget (WIP)

SDK/include/NDK/Widgets/ScrollAreaWidget.inl

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+// Copyright (C) 2019 Jérôme Leclercq
+// This file is part of the "Nazara Development Kit"
+// For conditions of distribution and use, see copyright notice in Prerequisites.hpp
+
+#include <NDK/Widgets/ScrollAreaWidget.hpp>
+
+namespace Ndk
+{
+	inline float ScrollAreaWidget::GetScrollHeight() const
+	{
+		return m_scrollRatio * m_content->GetHeight();
+	}
+
+	inline float ScrollAreaWidget::GetScrollRatio() const
+	{
+		return m_scrollRatio;
+	}
+
+	inline void ScrollAreaWidget::ScrollToHeight(float height)
+	{
+		float contentHeight = m_content->GetHeight();
+		ScrollToRatio(height / contentHeight);
+	}
+}