mirror of
https://gitee.com/akwkevin/aistudio.-wpf.-diagram
synced 2026-03-03 00:00:57 +08:00
627 lines
18 KiB
C#
627 lines
18 KiB
C#
using System;
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using System.Windows.Media;
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namespace AIStudio.Wpf.DiagramDesigner
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{
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/// <summary>
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/// 类 名：ColorHelper
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/// 功 能：提供从RGB到HSV/HSL色彩空间的相互转换
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/// 日 期：2015-02-08
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/// 修 改：2015-03-20
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/// 作 者：ls9512
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/// </summary>
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public static class ColorHelper
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{
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public static Color AdjustBrightness(Color c1, double factor)
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{
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double r = ((c1.R * factor) > 255) ? 255 : (c1.R * factor);
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double g = ((c1.G * factor) > 255) ? 255 : (c1.G * factor);
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double b = ((c1.B * factor) > 255) ? 255 : (c1.B * factor);
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Color c = Color.FromArgb(c1.A, (byte)r, (byte)g, (byte)b);
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return c;
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}
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/// <summary>
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/// RGB转换HSV
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/// </summary>
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/// <param name="rgb"></param>
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/// <returns></returns>
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public static ColorHSV RgbToHsv(ColorRGB rgb)
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{
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float min, max, tmp, H, S, V;
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float R = rgb.R * 1.0f / 255, G = rgb.G * 1.0f / 255, B = rgb.B * 1.0f / 255;
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tmp = Math.Min(R, G);
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min = Math.Min(tmp, B);
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tmp = Math.Max(R, G);
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max = Math.Max(tmp, B);
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// H
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H = 0;
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if (max == min)
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{
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H = 0;
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}
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else if (max == R && G > B)
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{
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H = 60 * (G - B) * 1.0f / (max - min) + 0;
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}
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else if (max == R && G < B)
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{
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H = 60 * (G - B) * 1.0f / (max - min) + 360;
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}
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else if (max == G)
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{
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H = H = 60 * (B - R) * 1.0f / (max - min) + 120;
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}
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else if (max == B)
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{
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H = H = 60 * (R - G) * 1.0f / (max - min) + 240;
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}
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// S
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if (max == 0)
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{
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S = 0;
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}
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else
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{
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S = (max - min) * 1.0f / max;
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}
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// V
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V = max;
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return new ColorHSV((int)H, (int)(S * 255), (int)(V * 255));
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}
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/// <summary>
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/// HSV转换RGB
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/// </summary>
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/// <param name="hsv"></param>
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/// <returns></returns>
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public static ColorRGB HsvToRgb(ColorHSV hsv)
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{
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if (hsv.H == 360) hsv.H = 359; // 360为全黑，原因不明
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float R = 0f, G = 0f, B = 0f;
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if (hsv.S == 0)
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{
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return new ColorRGB(hsv.V, hsv.V, hsv.V);
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}
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float S = hsv.S * 1.0f / 255, V = hsv.V * 1.0f / 255;
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int H1 = (int)(hsv.H * 1.0f / 60), H = hsv.H;
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float F = H * 1.0f / 60 - H1;
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float P = V * (1.0f - S);
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float Q = V * (1.0f - F * S);
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float T = V * (1.0f - (1.0f - F) * S);
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switch (H1)
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{
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case 0: R = V; G = T; B = P; break;
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case 1: R = Q; G = V; B = P; break;
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case 2: R = P; G = V; B = T; break;
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case 3: R = P; G = Q; B = V; break;
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case 4: R = T; G = P; B = V; break;
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case 5: R = V; G = P; B = Q; break;
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}
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R = R * 255;
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G = G * 255;
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B = B * 255;
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while (R > 255) R -= 255;
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while (R < 0) R += 255;
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while (G > 255) G -= 255;
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while (G < 0) G += 255;
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while (B > 255) B -= 255;
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while (B < 0) B += 255;
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return new ColorRGB((int)R, (int)G, (int)B);
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}
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/// <summary>
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/// RGB转换HSL
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/// </summary>
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/// <param name="rgb"></param>
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/// <returns></returns>
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public static ColorHSL RgbToHsl(ColorRGB rgb)
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{
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float min, max, tmp, H, S, L;
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float R = rgb.R * 1.0f / 255, G = rgb.G * 1.0f / 255, B = rgb.B * 1.0f / 255;
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tmp = Math.Min(R, G);
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min = Math.Min(tmp, B);
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tmp = Math.Max(R, G);
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max = Math.Max(tmp, B);
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// H
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H = 0;
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if (max == min)
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{
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H = 0; // 此时H应为未定义，通常写为0
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}
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else if (max == R && G > B)
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{
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H = 60 * (G - B) * 1.0f / (max - min) + 0;
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}
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else if (max == R && G < B)
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{
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H = 60 * (G - B) * 1.0f / (max - min) + 360;
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}
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else if (max == G)
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{
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H = H = 60 * (B - R) * 1.0f / (max - min) + 120;
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}
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else if (max == B)
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{
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H = H = 60 * (R - G) * 1.0f / (max - min) + 240;
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}
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// L
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L = 0.5f * (max + min);
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// S
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S = 0;
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if (L == 0 || max == min)
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{
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S = 0;
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}
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else if (0 < L && L < 0.5)
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{
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S = (max - min) / (L * 2);
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}
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else if (L > 0.5)
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{
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S = (max - min) / (2 - 2 * L);
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}
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return new ColorHSL((int)H, (int)(S * 255), (int)(L * 255));
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}
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/// <summary>
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/// HSL转换RGB
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/// </summary>
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/// <param name="hsl"></param>
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/// <returns></returns>
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public static ColorRGB HslToRgb(ColorHSL hsl)
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{
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float R = 0f, G = 0f, B = 0f;
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float S = hsl.S * 1.0f / 255, L = hsl.L * 1.0f / 255;
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float temp1, temp2, temp3;
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if (S == 0f) // 灰色
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{
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R = L;
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G = L;
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B = L;
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}
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else
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{
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if (L < 0.5f)
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{
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temp2 = L * (1.0f + S);
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}
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else
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{
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temp2 = L + S - L * S;
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}
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temp1 = 2.0f * L - temp2;
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float H = hsl.H * 1.0f / 360;
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// R
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temp3 = H + 1.0f / 3.0f;
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if (temp3 < 0) temp3 += 1.0f;
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if (temp3 > 1) temp3 -= 1.0f;
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R = temp3;
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// G
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temp3 = H;
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if (temp3 < 0) temp3 += 1.0f;
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if (temp3 > 1) temp3 -= 1.0f;
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G = temp3;
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// B
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temp3 = H - 1.0f / 3.0f;
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if (temp3 < 0) temp3 += 1.0f;
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if (temp3 > 1) temp3 -= 1.0f;
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B = temp3;
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}
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R = R * 255;
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G = G * 255;
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B = B * 255;
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return new ColorRGB((int)R, (int)G, (int)B);
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}
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/// <summary>
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/// RGB转换HSV
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/// </summary>
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/// <param name="rgb"></param>
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/// <returns></returns>
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public static ColorHSV ColorToHsv(Color rgb)
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{
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float min, max, tmp, H, S, V;
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float R = rgb.R * 1.0f / 255, G = rgb.G * 1.0f / 255, B = rgb.B * 1.0f / 255;
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tmp = Math.Min(R, G);
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min = Math.Min(tmp, B);
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tmp = Math.Max(R, G);
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max = Math.Max(tmp, B);
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// H
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H = 0;
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if (max == min)
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{
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H = 0;
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}
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else if (max == R && G > B)
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{
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H = 60 * (G - B) * 1.0f / (max - min) + 0;
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}
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else if (max == R && G < B)
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{
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H = 60 * (G - B) * 1.0f / (max - min) + 360;
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}
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else if (max == G)
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{
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H = H = 60 * (B - R) * 1.0f / (max - min) + 120;
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}
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else if (max == B)
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{
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H = H = 60 * (R - G) * 1.0f / (max - min) + 240;
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}
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// S
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if (max == 0)
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{
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S = 0;
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}
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else
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{
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S = (max - min) * 1.0f / max;
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}
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// V
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V = max;
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return new ColorHSV((int)H, (int)(S * 255), (int)(V * 255));
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}
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/// <summary>
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/// HSV转换RGB
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/// </summary>
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/// <param name="hsv"></param>
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/// <returns></returns>
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public static Color HsvToColor(ColorHSV hsv)
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{
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if (hsv.H == 360) hsv.H = 359; // 360为全黑，原因不明
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float R = 0f, G = 0f, B = 0f;
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if (hsv.S == 0)
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{
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return Color.FromArgb(0xff, (byte)hsv.V, (byte)hsv.V, (byte)hsv.V);
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}
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float S = hsv.S * 1.0f / 255, V = hsv.V * 1.0f / 255;
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int H1 = (int)(hsv.H * 1.0f / 60), H = hsv.H;
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float F = H * 1.0f / 60 - H1;
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float P = V * (1.0f - S);
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float Q = V * (1.0f - F * S);
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float T = V * (1.0f - (1.0f - F) * S);
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switch (H1)
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{
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case 0: R = V; G = T; B = P; break;
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case 1: R = Q; G = V; B = P; break;
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case 2: R = P; G = V; B = T; break;
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case 3: R = P; G = Q; B = V; break;
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case 4: R = T; G = P; B = V; break;
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case 5: R = V; G = P; B = Q; break;
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}
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R = R * 255;
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G = G * 255;
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B = B * 255;
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while (R > 255) R -= 255;
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while (R < 0) R += 255;
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while (G > 255) G -= 255;
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while (G < 0) G += 255;
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while (B > 255) B -= 255;
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while (B < 0) B += 255;
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return Color.FromArgb(0xff, (byte)R, (byte)G, (byte)B);
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}
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/// <summary>
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/// RGB转换HSL
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/// </summary>
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/// <param name="rgb"></param>
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/// <returns></returns>
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public static ColorHSL ColorToHsl(Color rgb)
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{
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float min, max, tmp, H, S, L;
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float R = rgb.R * 1.0f / 255, G = rgb.G * 1.0f / 255, B = rgb.B * 1.0f / 255;
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tmp = Math.Min(R, G);
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min = Math.Min(tmp, B);
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tmp = Math.Max(R, G);
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max = Math.Max(tmp, B);
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// H
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H = 0;
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if (max == min)
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{
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H = 0; // 此时H应为未定义，通常写为0
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}
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else if (max == R && G > B)
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{
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H = 60 * (G - B) * 1.0f / (max - min) + 0;
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}
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else if (max == R && G < B)
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{
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H = 60 * (G - B) * 1.0f / (max - min) + 360;
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}
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else if (max == G)
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{
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H = H = 60 * (B - R) * 1.0f / (max - min) + 120;
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}
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else if (max == B)
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{
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H = H = 60 * (R - G) * 1.0f / (max - min) + 240;
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}
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// L
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L = 0.5f * (max + min);
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// S
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S = 0;
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if (L == 0 || max == min)
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{
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S = 0;
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}
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else if (0 < L && L < 0.5)
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{
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S = (max - min) / (L * 2);
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}
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else if (L > 0.5)
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{
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S = (max - min) / (2 - 2 * L);
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}
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return new ColorHSL((int)H, (int)(S * 255), (int)(L * 255));
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}
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/// <summary>
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/// HSL转换RGB
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/// </summary>
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/// <param name="hsl"></param>
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/// <returns></returns>
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public static Color HslToColor(ColorHSL hsl)
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{
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float R = 0f, G = 0f, B = 0f;
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float S = hsl.S * 1.0f / 255, L = hsl.L * 1.0f / 255;
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float temp1, temp2, temp3;
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if (S == 0f) // 灰色
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{
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R = L;
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G = L;
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B = L;
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}
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else
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{
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if (L < 0.5f)
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{
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temp2 = L * (1.0f + S);
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}
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else
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{
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temp2 = L + S - L * S;
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}
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temp1 = 2.0f * L - temp2;
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float H = hsl.H * 1.0f / 360;
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// R
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temp3 = H + 1.0f / 3.0f;
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if (temp3 < 0) temp3 += 1.0f;
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if (temp3 > 1) temp3 -= 1.0f;
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R = temp3;
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// G
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temp3 = H;
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if (temp3 < 0) temp3 += 1.0f;
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if (temp3 > 1) temp3 -= 1.0f;
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G = temp3;
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// B
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temp3 = H - 1.0f / 3.0f;
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if (temp3 < 0) temp3 += 1.0f;
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if (temp3 > 1) temp3 -= 1.0f;
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B = temp3;
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}
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R = R * 255;
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G = G * 255;
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B = B * 255;
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return Color.FromArgb(0xff, (byte)R, (byte)G, (byte)B);
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}
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}
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#region RGB / HSV / HSL 颜色模型类
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/// <summary>
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/// 类 名：ColorHSL
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/// 功 能：H 色相 \ S 饱和度(纯度) \ L 亮度 颜色模型
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/// 日 期：2015-02-08
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/// 修 改：2015-03-20
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/// 作 者：ls9512
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/// </summary>
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public class ColorHSL
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{
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public ColorHSL(int h, int s, int l)
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{
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this._h = h;
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this._s = s;
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this._l = l;
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}
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private int _h;
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private int _s;
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private int _l;
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/// <summary>
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/// 色相
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/// </summary>
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public int H
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{
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get { return this._h; }
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set
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{
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this._h = value;
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this._h = this._h > 360 ? 360 : this._h;
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this._h = this._h < 0 ? 0 : this._h;
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}
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}
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/// <summary>
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/// 饱和度(纯度)
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/// </summary>
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public int S
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{
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get { return this._s; }
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set
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{
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this._s = value;
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this._s = this._s > 255 ? 255 : this._s;
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this._s = this._s < 0 ? 0 : this._s;
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}
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}
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/// <summary>
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/// 饱和度
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/// </summary>
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public int L
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{
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get { return this._l; }
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set
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{
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this._l = value;
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this._l = this._l > 255 ? 255 : this._l;
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this._l = this._l < 0 ? 0 : this._l;
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}
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}
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}
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/// <summary>
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/// 类 名：ColorHSV
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/// 功 能：H 色相 \ S 饱和度(纯度) \ V 明度 颜色模型
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/// 日 期：2015-01-22
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/// 修 改：2015-03-20
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/// 作 者：ls9512
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/// </summary>
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public class ColorHSV
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{
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/// <summary>
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/// 构造方法
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/// </summary>
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/// <param name="h"></param>
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/// <param name="s"></param>
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/// <param name="v"></param>
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public ColorHSV(int h, int s, int v)
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{
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this._h = h;
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this._s = s;
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this._v = v;
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}
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private int _h;
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private int _s;
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private int _v;
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/// <summary>
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/// 色相
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/// </summary>
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public int H
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{
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get { return this._h; }
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set
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||
{
|
||
this._h = value;
|
||
this._h = this._h > 360 ? 360 : this._h;
|
||
this._h = this._h < 0 ? 0 : this._h;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 饱和度(纯度)
|
||
/// </summary>
|
||
public int S
|
||
{
|
||
get { return this._s; }
|
||
set
|
||
{
|
||
this._s = value;
|
||
this._s = this._s > 255 ? 255 : this._s;
|
||
this._s = this._s < 0 ? 0 : this._s;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 明度
|
||
/// </summary>
|
||
public int V
|
||
{
|
||
get { return this._v; }
|
||
set
|
||
{
|
||
this._v = value;
|
||
this._v = this._v > 255 ? 255 : this._v;
|
||
this._v = this._v < 0 ? 0 : this._v;
|
||
}
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 类 名：ColorRGB
|
||
/// 功 能：R 红色 \ G 绿色 \ B 蓝色 颜色模型
|
||
/// 所有颜色模型的基类，RGB是用于输出到屏幕的颜色模式，所以所有模型都将转换成RGB输出
|
||
/// 日 期：2015-01-22
|
||
/// 修 改：2015-03-20
|
||
/// 作 者：ls9512
|
||
/// </summary>
|
||
public class ColorRGB
|
||
{
|
||
/// <summary>
|
||
/// 构造方法
|
||
/// </summary>
|
||
/// <param name="r"></param>
|
||
/// <param name="g"></param>
|
||
/// <param name="b"></param>
|
||
public ColorRGB(int r, int g, int b)
|
||
{
|
||
this._r = r;
|
||
this._g = g;
|
||
this._b = b;
|
||
}
|
||
|
||
private int _r;
|
||
private int _g;
|
||
private int _b;
|
||
|
||
/// <summary>
|
||
/// 红色
|
||
/// </summary>
|
||
public int R
|
||
{
|
||
get { return this._r; }
|
||
set
|
||
{
|
||
this._r = value;
|
||
this._r = this._r > 255 ? 255 : this._r;
|
||
this._r = this._r < 0 ? 0 : this._r;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 绿色
|
||
/// </summary>
|
||
public int G
|
||
{
|
||
get { return this._g; }
|
||
set
|
||
{
|
||
this._g = value;
|
||
this._g = this._g > 255 ? 255 : this._g;
|
||
this._g = this._g < 0 ? 0 : this._g;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 蓝色
|
||
/// </summary>
|
||
public int B
|
||
{
|
||
get { return this._b; }
|
||
set
|
||
{
|
||
this._b = value;
|
||
this._b = this._b > 255 ? 255 : this._b;
|
||
this._b = this._b < 0 ? 0 : this._b;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取实际颜色
|
||
/// </summary>
|
||
/// <returns></returns>
|
||
public Color GetColor()
|
||
{
|
||
return Color.FromArgb(0xff, (byte)this._r, (byte)this._g, (byte)this._b);
|
||
}
|
||
}
|
||
#endregion
|
||
}
|
