多项功能优化

Wpf.Ui.Extend/Controls/HSVColor.cs

@@ -0,0 +1,83 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+
+using Color = System.Windows.Media.Color;
+
+namespace Wpf.Ui.Extend.Controls;
+
+public static class HsvColor
+{
+    public static Color[] GetSpectrum()
+    {
+        var rgbs = new Color[360];
+        
+        for (var h = 0; h < 360; h++)
+        {
+            rgbs[h] = RgbFromHsv(h, 1f, 1f);
+        }
+        
+        return rgbs;
+    }
+    
+    public static Color[] HueSpectrum(double saturation, double value)
+    {
+        var rgbs = new Color[7];
+        
+        for (var h = 0; h < 7; h++)
+        {
+            rgbs[h] = RgbFromHsv(h * 60, saturation, value);
+        }
+        
+        return rgbs;
+    }
+    
+    public static Color RgbFromHsv(double h, double s, double v)
+    {
+        if (h > 360 || h < 0 || s > 1 || s < 0 || v > 1 || v < 0)
+        {
+            return Color.FromRgb(0, 0, 0);
+        }
+        
+        var c = v * s;
+        var x = c * (1 - Math.Abs(((h / 60) % 2) - 1));
+        var m = v - c;
+        
+        double r = 0, g = 0, b = 0;
+        
+        if (h < 60)
+        {
+            r = c;
+            g = x;
+        }
+        else if (h < 120)
+        {
+            r = x;
+            g = c;
+        }
+        else if (h < 180)
+        {
+            g = c;
+            b = x;
+        }
+        else if (h < 240)
+        {
+            g = x;
+            b = c;
+        }
+        else if (h < 300)
+        {
+            r = x;
+            b = c;
+        }
+        else if (h <= 360)
+        {
+            r = c;
+            b = x;
+        }
+        
+        return Color.FromRgb((byte)((r + m) * 255), (byte)((g + m) * 255), (byte)((b + m) * 255));
+    }
+}