[4808] | 1 | #region License Information
|
---|
| 2 | /* HeuristicLab
|
---|
[9456] | 3 | * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
|
---|
[4808] | 4 | *
|
---|
| 5 | * This file is part of HeuristicLab.
|
---|
| 6 | *
|
---|
| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
|
---|
| 8 | * it under the terms of the GNU General Public License as published by
|
---|
| 9 | * the Free Software Foundation, either version 3 of the License, or
|
---|
| 10 | * (at your option) any later version.
|
---|
| 11 | *
|
---|
| 12 | * HeuristicLab is distributed in the hope that it will be useful,
|
---|
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 15 | * GNU General Public License for more details.
|
---|
| 16 | *
|
---|
| 17 | * You should have received a copy of the GNU General Public License
|
---|
| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
|
---|
| 19 | */
|
---|
| 20 | #endregion
|
---|
| 21 |
|
---|
| 22 | using System.Collections.Generic;
|
---|
| 23 | using System.Collections.ObjectModel;
|
---|
| 24 | using System.Drawing;
|
---|
| 25 |
|
---|
| 26 | namespace HeuristicLab.Common {
|
---|
| 27 | public static class ColorGradient {
|
---|
| 28 | private const int shades = 256;
|
---|
| 29 |
|
---|
| 30 | private static List<Color> colors = new List<Color>();
|
---|
| 31 | private static ReadOnlyCollection<Color> readOnlyColors;
|
---|
| 32 | public static IList<Color> Colors {
|
---|
| 33 | get {
|
---|
| 34 | if (readOnlyColors == null) readOnlyColors = colors.AsReadOnly();
|
---|
| 35 | return readOnlyColors;
|
---|
| 36 | }
|
---|
| 37 | }
|
---|
| 38 |
|
---|
| 39 | private static List<Color> grayscaledColors = new List<Color>();
|
---|
| 40 | private static ReadOnlyCollection<Color> readOnlyGrayScaledColors;
|
---|
| 41 | public static IList<Color> GrayscaledColors {
|
---|
| 42 | get {
|
---|
| 43 | if (readOnlyGrayScaledColors == null) readOnlyGrayScaledColors = grayscaledColors.AsReadOnly();
|
---|
| 44 | return readOnlyGrayScaledColors;
|
---|
| 45 | }
|
---|
| 46 | }
|
---|
| 47 |
|
---|
| 48 | static ColorGradient() {
|
---|
| 49 | int stepWidth = (256 * 4) / shades;
|
---|
| 50 | int currentValue;
|
---|
| 51 | int currentClass;
|
---|
| 52 | for (int i = 0; i < shades; i++) {
|
---|
| 53 | currentValue = (i * stepWidth) % 256;
|
---|
| 54 | currentClass = (i * stepWidth) / 256;
|
---|
| 55 | switch (currentClass) {
|
---|
| 56 | case 0: { colors.Add(Color.FromArgb(0, currentValue, 255)); break; } // blue -> cyan
|
---|
| 57 | case 1: { colors.Add(Color.FromArgb(0, 255, 255 - currentValue)); break; } // cyan -> green
|
---|
| 58 | case 2: { colors.Add(Color.FromArgb(currentValue, 255, 0)); break; } // green -> yellow
|
---|
| 59 | case 3: { colors.Add(Color.FromArgb(255, 255 - currentValue, 0)); break; } // yellow -> red
|
---|
| 60 | }
|
---|
| 61 | }
|
---|
| 62 | for (int i = 0; i < 256; i++)
|
---|
| 63 | grayscaledColors.Add(Color.FromArgb(255 - i, 255 - i, 255 - i)); // white -> black
|
---|
| 64 | }
|
---|
| 65 | }
|
---|
| 66 | }
|
---|