1 files changed, 101 insertions, 0 deletions
diff --git a/src/Measure.cs b/src/Measure.cs
new file mode 100644
index 00000000..4fbac421
--- /dev/null
+++ b/src/Measure.cs
@@ -0,0 +1,101 @@
+//
+//  Measure.cs
+//
+//  Author:
+//       Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
+//
+//  Copyright (c) 2016 jp
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+using System;
+
+namespace Crow
+{
+	public enum Unit { Pixel, Percent }
+	public struct Measure
+	{
+		public int Value;
+		public Unit Units;
+
+		public static Measure Fit = new Measure(-1);
+		//TODO:implement stretching as 100%, not 0%
+		public static Measure Stretched = new Measure(0, Unit.Percent);
+
+		public Measure (int _value, Unit _units = Unit.Pixel)
+		{
+			Value = _value;
+			Units = _units;
+		}
+		public bool IsFixed { get { return Value > 0 && Units == Unit.Pixel; }}
+		#region Operators
+		public static implicit operator int(Measure m){
+			return m.Value;
+		}
+		public static implicit operator Measure(int i){
+			return new Measure(i);
+		}
+		public static implicit operator string(Measure m){
+			return m.ToString();
+		}
+		public static implicit operator Measure(string s){
+			return Measure.Parse(s);
+		}
+
+		public static bool operator ==(Measure m1, Measure m2){
+			return m1.Value == m2.Value && m1.Units == m2.Units;
+		}
+		public static bool operator !=(Measure m1, Measure m2){
+			return !(m1.Value == m2.Value && m1.Units == m2.Units);
+		}
+		#endregion
+		public override int GetHashCode ()
+		{
+			return Value.GetHashCode ();
+		}
+		public override bool Equals (object obj)
+		{
+			return (obj == null || obj.GetType() != typeof(Measure)) ?
+				false :
+				this == (Measure)obj;
+		}
+		public override string ToString ()
+		{
+			return Value == -1 ? "Fit" :
+				Value == 0 ? "Stretched" :
+				Units == Unit.Percent ? Value.ToString () + "%" : Value.ToString ();
+		}
+		public static Measure Parse(string s){
+			if (string.IsNullOrEmpty (s))
+				return Measure.Stretched;
+
+			string st = s.Trim ();
+			int tmp = 0;
+
+			if (string.Equals ("Fit", st, StringComparison.Ordinal))
+				return Measure.Fit;
+			else if (string.Equals ("Stretched", s, StringComparison.Ordinal))
+				return Measure.Stretched;
+			else {
+				if (st.EndsWith ("%", StringComparison.Ordinal)) {
+					if (int.TryParse (s.Substring(0, st.Length - 1), out tmp))
+						return new Measure (tmp, Unit.Percent);
+				}else if (int.TryParse (s, out tmp))
+					return new Measure (tmp);
+			}
+
+			throw new Exception ("Error parsing Measure.");
+		}
+
+	}
+}