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@@ -0,0 +1,359 @@
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+using Avalonia.Media;
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+using Avalonia.Utilities;
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+
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+namespace Avalonia.Controls
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+{
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+ /// <summary>
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+ /// Implements a reduced version of the 2014 Material Design color palette.
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+ /// </summary>
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+ /// <remarks>
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+ /// This palette is based on the one outlined here:
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+ ///
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+ /// https://material.io/design/color/the-color-system.html#tools-for-picking-colors
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+ ///
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+ /// In order to make the palette uniform and rectangular the following
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+ /// alterations were made:
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+ ///
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+ /// 1. The A100-A700 shades of each color are excluded.
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+ /// These shades do not exist for all colors (brown/gray).
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+ /// 2. Black/White are stand-alone and are also excluded.
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+ ///
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+ /// </remarks>
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+ public class MaterialColorPalette : IColorPalette
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+ {
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+ // See: https://material.io/design/color/the-color-system.html#tools-for-picking-colors
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+ // This is a reduced palette for uniformity
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+ private static Color[,]? _colorChart = null;
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+ private static int _colorChartColorCount = 0;
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+ private static int _colorChartShadeCount = 0;
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+ private static object _colorChartMutex = new object();
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+
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+ /// <summary>
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+ /// Initializes all color chart colors.
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+ /// </summary>
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+ /// <remarks>
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+ /// This is pulled out separately to lazy load for performance.
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+ /// If no material color palette is ever used, no colors will be created.
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+ /// </remarks>
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+ private void InitColorChart()
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+ {
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+ lock (_colorChartMutex)
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+ {
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+ _colorChart = new Color[,]
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+ {
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+ // Red
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+ {
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+ Color.FromArgb(0xFF, 0xFF, 0xEB, 0xEE),
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+ Color.FromArgb(0xFF, 0xFF, 0xCD, 0xD2),
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+ Color.FromArgb(0xFF, 0xEF, 0x9A, 0x9A),
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+ Color.FromArgb(0xFF, 0xE5, 0x73, 0x73),
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+ Color.FromArgb(0xFF, 0xEF, 0x53, 0x50),
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+ Color.FromArgb(0xFF, 0xF4, 0x43, 0x36),
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+ Color.FromArgb(0xFF, 0xE5, 0x39, 0x35),
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+ Color.FromArgb(0xFF, 0xD3, 0x2F, 0x2F),
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+ Color.FromArgb(0xFF, 0xC6, 0x28, 0x28),
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+ Color.FromArgb(0xFF, 0xB7, 0x1C, 0x1C),
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+ },
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+
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+ // Pink
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+ {
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+ Color.FromArgb(0xFF, 0xFC, 0xE4, 0xEC),
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+ Color.FromArgb(0xFF, 0xF8, 0xBB, 0xD0),
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+ Color.FromArgb(0xFF, 0xF4, 0x8F, 0xB1),
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+ Color.FromArgb(0xFF, 0xF0, 0x62, 0x92),
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+ Color.FromArgb(0xFF, 0xEC, 0x40, 0x7A),
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+ Color.FromArgb(0xFF, 0xE9, 0x1E, 0x63),
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+ Color.FromArgb(0xFF, 0xD8, 0x1B, 0x60),
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+ Color.FromArgb(0xFF, 0xC2, 0x18, 0x5B),
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+ Color.FromArgb(0xFF, 0xAD, 0x14, 0x57),
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+ Color.FromArgb(0xFF, 0x88, 0x0E, 0x4F),
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+ },
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+
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+ // Purple
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+ {
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+ Color.FromArgb(0xFF, 0xF3, 0xE5, 0xF5),
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+ Color.FromArgb(0xFF, 0xE1, 0xBE, 0xE7),
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+ Color.FromArgb(0xFF, 0xCE, 0x93, 0xD8),
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+ Color.FromArgb(0xFF, 0xBA, 0x68, 0xC8),
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+ Color.FromArgb(0xFF, 0xAB, 0x47, 0xBC),
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+ Color.FromArgb(0xFF, 0x9C, 0x27, 0xB0),
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+ Color.FromArgb(0xFF, 0x8E, 0x24, 0xAA),
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+ Color.FromArgb(0xFF, 0x7B, 0x1F, 0xA2),
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+ Color.FromArgb(0xFF, 0x6A, 0x1B, 0x9A),
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+ Color.FromArgb(0xFF, 0x4A, 0x14, 0x8C),
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+ },
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+
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+ // Deep Purple
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+ {
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+ Color.FromArgb(0xFF, 0xED, 0xE7, 0xF6),
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+ Color.FromArgb(0xFF, 0xD1, 0xC4, 0xE9),
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+ Color.FromArgb(0xFF, 0xB3, 0x9D, 0xDB),
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+ Color.FromArgb(0xFF, 0x95, 0x75, 0xCD),
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+ Color.FromArgb(0xFF, 0x7E, 0x57, 0xC2),
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+ Color.FromArgb(0xFF, 0x67, 0x3A, 0xB7),
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+ Color.FromArgb(0xFF, 0x5E, 0x35, 0xB1),
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+ Color.FromArgb(0xFF, 0x51, 0x2D, 0xA8),
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+ Color.FromArgb(0xFF, 0x45, 0x27, 0xA0),
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+ Color.FromArgb(0xFF, 0x31, 0x1B, 0x92),
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+ },
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+
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+ // Indigo
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+ {
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+ Color.FromArgb(0xFF, 0xE8, 0xEA, 0xF6),
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+ Color.FromArgb(0xFF, 0xC5, 0xCA, 0xE9),
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+ Color.FromArgb(0xFF, 0x9F, 0xA8, 0xDA),
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+ Color.FromArgb(0xFF, 0x79, 0x86, 0xCB),
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+ Color.FromArgb(0xFF, 0x5C, 0x6B, 0xC0),
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+ Color.FromArgb(0xFF, 0x3F, 0x51, 0xB5),
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+ Color.FromArgb(0xFF, 0x39, 0x49, 0xAB),
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+ Color.FromArgb(0xFF, 0x30, 0x3F, 0x9F),
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+ Color.FromArgb(0xFF, 0x28, 0x35, 0x93),
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+ Color.FromArgb(0xFF, 0x1A, 0x23, 0x7E),
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+ },
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+
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+ // Blue
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+ {
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+ Color.FromArgb(0xFF, 0xE3, 0xF2, 0xFD),
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+ Color.FromArgb(0xFF, 0xBB, 0xDE, 0xFB),
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+ Color.FromArgb(0xFF, 0x90, 0xCA, 0xF9),
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+ Color.FromArgb(0xFF, 0x64, 0xB5, 0xF6),
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+ Color.FromArgb(0xFF, 0x42, 0xA5, 0xF5),
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+ Color.FromArgb(0xFF, 0x21, 0x96, 0xF3),
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+ Color.FromArgb(0xFF, 0x1E, 0x88, 0xE5),
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+ Color.FromArgb(0xFF, 0x19, 0x76, 0xD2),
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+ Color.FromArgb(0xFF, 0x15, 0x65, 0xC0),
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+ Color.FromArgb(0xFF, 0x0D, 0x47, 0xA1),
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+ },
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+
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+ // Light Blue
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+ {
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+ Color.FromArgb(0xFF, 0xE1, 0xF5, 0xFE),
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+ Color.FromArgb(0xFF, 0xB3, 0xE5, 0xFC),
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+ Color.FromArgb(0xFF, 0x81, 0xD4, 0xFA),
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+ Color.FromArgb(0xFF, 0x4F, 0xC3, 0xF7),
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+ Color.FromArgb(0xFF, 0x29, 0xB6, 0xF6),
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+ Color.FromArgb(0xFF, 0x03, 0xA9, 0xF4),
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+ Color.FromArgb(0xFF, 0x03, 0x9B, 0xE5),
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+ Color.FromArgb(0xFF, 0x02, 0x88, 0xD1),
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+ Color.FromArgb(0xFF, 0x02, 0x77, 0xBD),
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+ Color.FromArgb(0xFF, 0x01, 0x57, 0x9B),
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+ },
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+
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+ // Cyan
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+ {
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+ Color.FromArgb(0xFF, 0xE0, 0xF7, 0xFA),
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+ Color.FromArgb(0xFF, 0xB2, 0xEB, 0xF2),
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+ Color.FromArgb(0xFF, 0x80, 0xDE, 0xEA),
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+ Color.FromArgb(0xFF, 0x4D, 0xD0, 0xE1),
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+ Color.FromArgb(0xFF, 0x26, 0xC6, 0xDA),
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+ Color.FromArgb(0xFF, 0x00, 0xBC, 0xD4),
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+ Color.FromArgb(0xFF, 0x00, 0xAC, 0xC1),
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+ Color.FromArgb(0xFF, 0x00, 0x97, 0xA7),
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+ Color.FromArgb(0xFF, 0x00, 0x83, 0x8F),
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+ Color.FromArgb(0xFF, 0x00, 0x60, 0x64),
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+ },
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+
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+ // Teal
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+ {
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+ Color.FromArgb(0xFF, 0xE0, 0xF2, 0xF1),
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+ Color.FromArgb(0xFF, 0xB2, 0xDF, 0xDB),
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+ Color.FromArgb(0xFF, 0x80, 0xCB, 0xC4),
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+ Color.FromArgb(0xFF, 0x4D, 0xB6, 0xAC),
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+ Color.FromArgb(0xFF, 0x26, 0xA6, 0x9A),
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+ Color.FromArgb(0xFF, 0x00, 0x96, 0x88),
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+ Color.FromArgb(0xFF, 0x00, 0x89, 0x7B),
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+ Color.FromArgb(0xFF, 0x00, 0x79, 0x6B),
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+ Color.FromArgb(0xFF, 0x00, 0x69, 0x5C),
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+ Color.FromArgb(0xFF, 0x00, 0x4D, 0x40),
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+ },
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+
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+ // Green
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+ {
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+ Color.FromArgb(0xFF, 0xE8, 0xF5, 0xE9),
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+ Color.FromArgb(0xFF, 0xC8, 0xE6, 0xC9),
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+ Color.FromArgb(0xFF, 0xA5, 0xD6, 0xA7),
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+ Color.FromArgb(0xFF, 0x81, 0xC7, 0x84),
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+ Color.FromArgb(0xFF, 0x66, 0xBB, 0x6A),
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+ Color.FromArgb(0xFF, 0x4C, 0xAF, 0x50),
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+ Color.FromArgb(0xFF, 0x43, 0xA0, 0x47),
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+ Color.FromArgb(0xFF, 0x38, 0x8E, 0x3C),
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+ Color.FromArgb(0xFF, 0x2E, 0x7D, 0x32),
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+ Color.FromArgb(0xFF, 0x1B, 0x5E, 0x20),
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+ },
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+
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+ // Light Green
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+ {
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+ Color.FromArgb(0xFF, 0xF1, 0xF8, 0xE9),
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+ Color.FromArgb(0xFF, 0xDC, 0xED, 0xC8),
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+ Color.FromArgb(0xFF, 0xC5, 0xE1, 0xA5),
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+ Color.FromArgb(0xFF, 0xAE, 0xD5, 0x81),
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+ Color.FromArgb(0xFF, 0x9C, 0xCC, 0x65),
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+ Color.FromArgb(0xFF, 0x8B, 0xC3, 0x4A),
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+ Color.FromArgb(0xFF, 0x7C, 0xB3, 0x42),
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+ Color.FromArgb(0xFF, 0x68, 0x9F, 0x38),
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+ Color.FromArgb(0xFF, 0x55, 0x8B, 0x2F),
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+ Color.FromArgb(0xFF, 0x33, 0x69, 0x1E),
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+ },
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+
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+ // Lime
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+ {
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+ Color.FromArgb(0xFF, 0xF9, 0xFB, 0xE7),
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+ Color.FromArgb(0xFF, 0xF0, 0xF4, 0xC3),
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+ Color.FromArgb(0xFF, 0xE6, 0xEE, 0x9C),
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+ Color.FromArgb(0xFF, 0xDC, 0xE7, 0x75),
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+ Color.FromArgb(0xFF, 0xD4, 0xE1, 0x57),
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+ Color.FromArgb(0xFF, 0xCD, 0xDC, 0x39),
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+ Color.FromArgb(0xFF, 0xC0, 0xCA, 0x33),
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+ Color.FromArgb(0xFF, 0xAF, 0xB4, 0x2B),
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+ Color.FromArgb(0xFF, 0x9E, 0x9D, 0x24),
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+ Color.FromArgb(0xFF, 0x82, 0x77, 0x17),
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+ },
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+
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+ // Yellow
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+ {
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+ Color.FromArgb(0xFF, 0xFF, 0xFD, 0xE7),
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+ Color.FromArgb(0xFF, 0xFF, 0xF9, 0xC4),
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+ Color.FromArgb(0xFF, 0xFF, 0xF5, 0x9D),
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+ Color.FromArgb(0xFF, 0xFF, 0xF1, 0x76),
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+ Color.FromArgb(0xFF, 0xFF, 0xEE, 0x58),
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+ Color.FromArgb(0xFF, 0xFF, 0xEB, 0x3B),
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+ Color.FromArgb(0xFF, 0xFD, 0xD8, 0x35),
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+ Color.FromArgb(0xFF, 0xFB, 0xC0, 0x2D),
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+ Color.FromArgb(0xFF, 0xF9, 0xA8, 0x25),
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+ Color.FromArgb(0xFF, 0xF5, 0x7F, 0x17),
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+ },
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+
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+ // Amber
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+ {
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+ Color.FromArgb(0xFF, 0xFF, 0xF8, 0xE1),
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+ Color.FromArgb(0xFF, 0xFF, 0xEC, 0xB3),
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+ Color.FromArgb(0xFF, 0xFF, 0xE0, 0x82),
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+ Color.FromArgb(0xFF, 0xFF, 0xD5, 0x4F),
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+ Color.FromArgb(0xFF, 0xFF, 0xCA, 0x28),
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+ Color.FromArgb(0xFF, 0xFF, 0xC1, 0x07),
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+ Color.FromArgb(0xFF, 0xFF, 0xB3, 0x00),
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+ Color.FromArgb(0xFF, 0xFF, 0xA0, 0x00),
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+ Color.FromArgb(0xFF, 0xFF, 0x8F, 0x00),
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+ Color.FromArgb(0xFF, 0xFF, 0x6F, 0x00),
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+ },
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+
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+ // Orange
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+ {
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+ Color.FromArgb(0xFF, 0xFF, 0xF3, 0xE0),
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+ Color.FromArgb(0xFF, 0xFF, 0xE0, 0xB2),
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+ Color.FromArgb(0xFF, 0xFF, 0xCC, 0x80),
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+ Color.FromArgb(0xFF, 0xFF, 0xB7, 0x4D),
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+ Color.FromArgb(0xFF, 0xFF, 0xA7, 0x26),
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+ Color.FromArgb(0xFF, 0xFF, 0x98, 0x00),
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+ Color.FromArgb(0xFF, 0xFB, 0x8C, 0x00),
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+ Color.FromArgb(0xFF, 0xF5, 0x7C, 0x00),
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+ Color.FromArgb(0xFF, 0xEF, 0x6C, 0x00),
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+ Color.FromArgb(0xFF, 0xE6, 0x51, 0x00),
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+ },
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+
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+ // Deep Orange
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+ {
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+ Color.FromArgb(0xFF, 0xFB, 0xE9, 0xE7),
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+ Color.FromArgb(0xFF, 0xFF, 0xCC, 0xBC),
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+ Color.FromArgb(0xFF, 0xFF, 0xAB, 0x91),
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+ Color.FromArgb(0xFF, 0xFF, 0x8A, 0x65),
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+ Color.FromArgb(0xFF, 0xFF, 0x70, 0x43),
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+ Color.FromArgb(0xFF, 0xFF, 0x57, 0x22),
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+ Color.FromArgb(0xFF, 0xF4, 0x51, 0x1E),
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+ Color.FromArgb(0xFF, 0xE6, 0x4A, 0x19),
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+ Color.FromArgb(0xFF, 0xD8, 0x43, 0x15),
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+ Color.FromArgb(0xFF, 0xBF, 0x36, 0x0C),
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+ },
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+
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+ // Brown
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+ {
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+ Color.FromArgb(0xFF, 0xEF, 0xEB, 0xE9),
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+ Color.FromArgb(0xFF, 0xD7, 0xCC, 0xC8),
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+ Color.FromArgb(0xFF, 0xBC, 0xAA, 0xA4),
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+ Color.FromArgb(0xFF, 0xA1, 0x88, 0x7F),
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+ Color.FromArgb(0xFF, 0x8D, 0x6E, 0x63),
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+ Color.FromArgb(0xFF, 0x79, 0x55, 0x48),
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+ Color.FromArgb(0xFF, 0x6D, 0x4C, 0x41),
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+ Color.FromArgb(0xFF, 0x5D, 0x40, 0x37),
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+ Color.FromArgb(0xFF, 0x4E, 0x34, 0x2E),
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+ Color.FromArgb(0xFF, 0x3E, 0x27, 0x23),
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+ },
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+
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+ // Gray
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+ {
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+ Color.FromArgb(0xFF, 0xFA, 0xFA, 0xFA),
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+ Color.FromArgb(0xFF, 0xF5, 0xF5, 0xF5),
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+ Color.FromArgb(0xFF, 0xEE, 0xEE, 0xEE),
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+ Color.FromArgb(0xFF, 0xE0, 0xE0, 0xE0),
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+ Color.FromArgb(0xFF, 0xBD, 0xBD, 0xBD),
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+ Color.FromArgb(0xFF, 0x9E, 0x9E, 0x9E),
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+ Color.FromArgb(0xFF, 0x75, 0x75, 0x75),
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+ Color.FromArgb(0xFF, 0x61, 0x61, 0x61),
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+ Color.FromArgb(0xFF, 0x42, 0x42, 0x42),
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+ Color.FromArgb(0xFF, 0x21, 0x21, 0x21),
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+ },
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+
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+ // Blue Gray
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+ {
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+ Color.FromArgb(0xFF, 0xEC, 0xEF, 0xF1),
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+ Color.FromArgb(0xFF, 0xCF, 0xD8, 0xDC),
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+ Color.FromArgb(0xFF, 0xB0, 0xBE, 0xC5),
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+ Color.FromArgb(0xFF, 0x90, 0xA4, 0xAE),
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+ Color.FromArgb(0xFF, 0x78, 0x90, 0x9C),
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+ Color.FromArgb(0xFF, 0x60, 0x7D, 0x8B),
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+ Color.FromArgb(0xFF, 0x54, 0x6E, 0x7A),
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+ Color.FromArgb(0xFF, 0x45, 0x5A, 0x64),
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+ Color.FromArgb(0xFF, 0x37, 0x47, 0x4F),
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+ Color.FromArgb(0xFF, 0x26, 0x32, 0x38),
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|
+ },
|
|
|
+ };
|
|
|
+
|
|
|
+ _colorChartColorCount = _colorChart.GetLength(0);
|
|
|
+ _colorChartShadeCount = _colorChart.GetLength(1);
|
|
|
+ }
|
|
|
+
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ /// <inheritdoc/>
|
|
|
+ public int ColorCount
|
|
|
+ {
|
|
|
+ get
|
|
|
+ {
|
|
|
+ if (_colorChart == null)
|
|
|
+ {
|
|
|
+ InitColorChart();
|
|
|
+ }
|
|
|
+
|
|
|
+ return _colorChartColorCount;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /// <inheritdoc/>
|
|
|
+ public int ShadeCount
|
|
|
+ {
|
|
|
+ get
|
|
|
+ {
|
|
|
+ if (_colorChart == null)
|
|
|
+ {
|
|
|
+ InitColorChart();
|
|
|
+ }
|
|
|
+
|
|
|
+ return _colorChartShadeCount;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /// <inheritdoc/>
|
|
|
+ public Color GetColor(int colorIndex, int shadeIndex)
|
|
|
+ {
|
|
|
+ if (_colorChart == null)
|
|
|
+ {
|
|
|
+ InitColorChart();
|
|
|
+ }
|
|
|
+
|
|
|
+ return _colorChart![
|
|
|
+ MathUtilities.Clamp(colorIndex, 0, _colorChartColorCount - 1),
|
|
|
+ MathUtilities.Clamp(shadeIndex, 0, _colorChartShadeCount - 1)];
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
Max Katz