Add Tizen backend renderer

- Xamarin.Forms.Platform.Tizen has been added
- Xamarin.Forms.Maps.Tizen has been added
- RPM build spec has been added

Change-Id: I0021e0f040d97345affc87512ee0f6ce437f4e6d

1 files changed, 39 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/IVisualElementRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/IVisualElementRenderer.cs
new file mode 100644
index 00000000..4702fd37
--- /dev/null
+++ b/Xamarin.Forms.Platform.Tizen/Renderers/IVisualElementRenderer.cs
@@ -0,0 +1,39 @@
+using System;
+using ElmSharp;
+
+namespace Xamarin.Forms.Platform.Tizen
+{
+	/// <summary>
+	/// Base interface for VisualElement renderer.
+	/// </summary>
+	public interface IVisualElementRenderer : IRegisterable, IDisposable
+	{
+		/// <summary>
+		/// Gets the VisualElement associated with this renderer.
+		/// </summary>
+		/// <value>The VisualElement.</value>
+		VisualElement Element
+		{
+			get;
+		}
+
+		/// <summary>
+		/// Gets the native view associated with this renderer.
+		/// </summary>
+		/// <value>The native view.</value>
+		EvasObject NativeView
+		{
+			get;
+		}
+
+		/// <summary>
+		/// Sets the VisualElement associated with this renderer.
+		/// </summary>
+		/// <param name="element">New element.</param>
+		void SetElement(VisualElement element);
+
+		SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint);
+
+		void UpdateNativeGeometry();
+	}
+}