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, 347 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.Tizen/Native/Label.cs b/Xamarin.Forms.Platform.Tizen/Native/Label.cs
new file mode 100644
index 00000000..cba2ba20
--- /dev/null
+++ b/Xamarin.Forms.Platform.Tizen/Native/Label.cs
@@ -0,0 +1,347 @@
+using System;
+using ElmSharp;
+using ELabel = ElmSharp.Label;
+using EColor = ElmSharp.Color;
+using ESize = ElmSharp.Size;
+
+namespace Xamarin.Forms.Platform.Tizen.Native
+{
+	/// <summary>
+	/// The Label class extends <c>ElmSharp.Label</c> to be better suited for Xamarin renderers.
+	/// Mainly the formatted text support.
+	/// </summary>
+	public class Label : ELabel, ITextable, IMeasurable
+	{
+		/// <summary>
+		/// The _span holds the content of the label.
+		/// </summary>
+		readonly Span _span = new Span();
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="Xamarin.Forms.Platform.Tizen.Native.Label"/> class.
+		/// </summary>
+		/// <param name="parent">Parent evas object.</param>
+		public Label(EvasObject parent) : base(parent)
+		{
+		}
+
+		/// <summary>
+		/// Get or sets the formatted text.
+		/// </summary>
+		/// <remarks>Setting <c>FormattedText</c> changes the value of the <c>Text</c> property.</remarks>
+		/// <value>The formatted text.</value>
+		public FormattedString FormattedText
+		{
+			get
+			{
+				return _span.FormattedText;
+			}
+
+			set
+			{
+				if (value != _span.FormattedText)
+				{
+					_span.FormattedText = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the text.
+		/// </summary>
+		/// <remarks>Setting <c>Text</c> overwrites the value of the <c>FormattedText</c> property too.</remarks>
+		/// <value>The content of the label.</value>
+		public override string Text
+		{
+			get
+			{
+				return _span.Text;
+			}
+
+			set
+			{
+				if (value != _span.Text)
+				{
+					_span.Text = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the color of the formatted text.
+		/// </summary>
+		/// <value>The color of the text.</value>
+		public EColor TextColor
+		{
+			get
+			{
+				return _span.ForegroundColor;
+			}
+
+			set
+			{
+				if (!_span.ForegroundColor.Equals(value))
+				{
+					_span.ForegroundColor = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the background color for the text.
+		/// </summary>
+		/// <value>The color of the label's background.</value>
+		public EColor TextBackgroundColor
+		{
+			get
+			{
+				return _span.BackgroundColor;
+			}
+
+			set
+			{
+				if (!_span.BackgroundColor.Equals(value))
+				{
+					_span.BackgroundColor = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the font family for the text.
+		/// </summary>
+		/// <value>The font family.</value>
+		public string FontFamily
+		{
+			get
+			{
+				return _span.FontFamily;
+			}
+
+			set
+			{
+				if (value != _span.FontFamily)
+				{
+					_span.FontFamily = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the font attributes.
+		/// </summary>
+		/// <value>The font attributes.</value>
+		public FontAttributes FontAttributes
+		{
+			get
+			{
+				return _span.FontAttributes;
+			}
+
+			set
+			{
+				if (value != _span.FontAttributes)
+				{
+					_span.FontAttributes = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the font size for the text.
+		/// </summary>
+		/// <value>The size of the font.</value>
+		public double FontSize
+		{
+			get
+			{
+				return _span.FontSize;
+			}
+
+			set
+			{
+				if (value != _span.FontSize)
+				{
+					_span.FontSize = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the line wrap option.
+		/// </summary>
+		/// <value>The line break mode.</value>
+		public LineBreakMode LineBreakMode
+		{
+			get
+			{
+				return _span.LineBreakMode;
+			}
+
+			set
+			{
+				if (value != _span.LineBreakMode)
+				{
+					_span.LineBreakMode = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the horizontal text alignment.
+		/// </summary>
+		/// <value>The horizontal text alignment.</value>
+		public TextAlignment HorizontalTextAlignment
+		{
+			get
+			{
+				return _span.HorizontalTextAlignment;
+			}
+
+			set
+			{
+				if (value != _span.HorizontalTextAlignment)
+				{
+					_span.HorizontalTextAlignment = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the vertical text alignment.
+		/// </summary>
+		/// <value>The vertical text alignment.</value>
+		public TextAlignment VerticalTextAlignment
+		{
+			get
+			{
+				return _span.VerticalTextAlignment;
+			}
+
+			set
+			{
+				if (value != _span.VerticalTextAlignment)
+				{
+					_span.VerticalTextAlignment = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the value that indicates whether the text is underlined.
+		/// </summary>
+		/// <value><c>true</c> if the text is underlined.</value>
+		public bool Underline
+		{
+			get
+			{
+				return _span.Underline;
+			}
+
+			set
+			{
+				if (value != _span.Underline)
+				{
+					_span.Underline = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets or sets the value that indicates whether the text is striked out.
+		/// </summary>
+		/// <value><c>true</c> if the text is striked out.</value>
+		public bool Strikethrough
+		{
+			get
+			{
+				return _span.Strikethrough;
+			}
+
+			set
+			{
+				if (value != _span.Strikethrough)
+				{
+					_span.Strikethrough = value;
+					ApplyTextAndStyle();
+				}
+			}
+		}
+
+		/// <summary>
+		/// Implements <see cref="Xamarin.Forms.Platform.Tizen.Native.IMeasurable"/> to provide a desired size of the label.
+		/// </summary>
+		/// <param name="availableWidth">Available width.</param>
+		/// <param name="availableHeight">Available height.</param>
+		/// <returns>Size of the control that fits the available area.</returns>
+		public ESize Measure(int availableWidth, int availableHeight)
+		{
+			var size = Geometry;
+
+			Resize(availableWidth, size.Height);
+
+			var rawSize = Native.TextHelper.GetRawTextBlockSize(this);
+			var formattedSize = Native.TextHelper.GetFormattedTextBlockSize(this);
+			Resize(size.Width, size.Height);
+
+			// Set bottom padding for lower case letters that have segments below the bottom line of text (g, j, p, q, y).
+			var verticalPadding = (int)Math.Ceiling(0.05 * FontSize);
+			var horizontalPadding = (int)Math.Ceiling(0.2 * FontSize);
+			rawSize.Height += verticalPadding;
+			formattedSize.Height += verticalPadding;
+			formattedSize.Width += horizontalPadding;
+
+			if (rawSize.Width > availableWidth)
+			{
+				return new ESize()
+				{
+					Width = formattedSize.Width,
+					Height = Math.Min(formattedSize.Height, Math.Max(rawSize.Height, availableHeight)),
+				};
+			}
+			else
+			{
+				return formattedSize;
+			}
+		}
+
+		void ApplyTextAndStyle()
+		{
+			SetInternalTextAndStyle(_span.GetDecoratedText(), _span.GetStyle());
+		}
+
+		void SetInternalTextAndStyle(string formattedText, string textStyle)
+		{
+			string emission = "elm,state,text,visible";
+
+			if (string.IsNullOrEmpty(formattedText))
+			{
+				formattedText = null;
+				textStyle = null;
+				emission = "elm,state,text,hidden";
+			}
+
+			base.Text = formattedText;
+
+			var textblock = EdjeObject["elm.text"];
+
+			if (textblock != null)
+			{
+				textblock.TextStyle = textStyle;
+			}
+
+			EdjeObject.EmitSignal(emission, "elm");
+		}
+	}
+}