Initial Commit

Common/Auxiliary/ColorHelper.cs

@@ -0,0 +1,104 @@
+using System;
+using System.Windows.Media;
+using System.Diagnostics.CodeAnalysis;
+
+namespace Microsoft.Research.DynamicDataDisplay
+{
+	public static class ColorHelper
+	{
+		private readonly static Random random = new Random();
+
+		/// <summary>
+		/// Creates color from HSB color space with random hue and saturation and brighness equal to 1.
+		/// </summary>
+		/// <returns></returns>
+		public static Color CreateColorWithRandomHue()
+		{
+			double hue = random.NextDouble() * 360;
+			HsbColor hsbColor = new HsbColor(hue, 1, 1);
+			return hsbColor.ToArgbColor();
+		}
+
+		public static Color[] CreateRandomColors(int colorNum)
+		{
+			double startHue = random.NextDouble() * 360;
+
+			Color[] res = new Color[colorNum];
+			double hueStep = 360.0 / colorNum;
+			for (int i = 0; i < res.Length; i++)
+			{
+				double hue = startHue + i * hueStep;
+				res[i] = new HsbColor(hue, 1, 1).ToArgbColor();
+			}
+
+			return res;
+		}
+
+		/// <summary>
+		/// Creates color with fully random hue and slightly random saturation and brightness.
+		/// </summary>
+		/// <returns></returns>
+		public static Color CreateRandomHsbColor()
+		{
+			double h = random.NextDouble() * 360;
+			double s = random.NextDouble() * 0.5 + 0.5;
+			double b = random.NextDouble() * 0.25 + 0.75;
+			return new HsbColor(h, s, b).ToArgbColor();
+		}
+
+		/// <summary>
+		/// Creates color with random hue.
+		/// </summary>
+		/// <param name="saturation">The saturation, [0..1].</param>
+		/// <param name="brightness">The brightness, [0..1]</param>
+		/// <returns></returns>
+		public static Color CreateColorWithRandomHue(double saturation, double brightness)
+		{
+			double h = random.NextDouble() * 360;
+
+			return new HsbColor(h, saturation, brightness).ToArgbColor();
+		}
+
+		/// <summary>
+		/// Creates brush with random hue.
+		/// </summary>
+		/// <param name="saturation">The saturation, [0..1].</param>
+		/// <param name="brightness">The brightness, [0..1].</param>
+		/// <returns></returns>
+		public static Brush CreateBrushWithRandomHue(double saturation, double brightness)
+		{
+			Color color = CreateColorWithRandomHue(saturation, brightness);
+
+			return new SolidColorBrush(color);
+		}
+
+		/// <summary>
+		/// Gets the random color (this property is created to use it from Xaml).
+		/// </summary>
+		/// <value>The random color.</value>
+		public static Color RandomColor
+		{
+			get { return CreateRandomHsbColor(); }
+		}
+
+		/// <summary>
+		/// Gets the random brush.
+		/// </summary>
+		/// <value>The random brush.</value>
+		public static SolidColorBrush RandomBrush
+		{
+			get { return new SolidColorBrush(CreateRandomHsbColor()); }
+		}
+
+		public static int ToArgb(this Color color)
+		{
+			int result =
+				color.A << 24 |
+				color.R << 16 |
+				color.G << 8 |
+				color.B;
+
+			return result;
+		}
+	}
+}