mirror of
https://github.com/sourcegit-scm/sourcegit.git
synced 2024-12-26 21:17:20 -08:00
247 lines
9.9 KiB
C#
247 lines
9.9 KiB
C#
using System;
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using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Input;
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using Avalonia.Media;
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namespace SourceGit.Views
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{
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public class ColorPicker : Control
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{
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public static readonly StyledProperty<uint> ValueProperty =
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AvaloniaProperty.Register<ColorPicker, uint>(nameof(Value), 0);
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public uint Value
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{
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get => GetValue(ValueProperty);
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set => SetValue(ValueProperty, value);
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}
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// Values are copied from Avalonia: src/Avalonia.Controls.ColorPicker/ColorPalettes/FluentColorPalette.cs
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private static readonly Color[,] COLOR_TABLE = new Color[,]
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{
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{
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Color.FromArgb(255, 255, 67, 67), /* #FF4343 */
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Color.FromArgb(255, 209, 52, 56), /* #D13438 */
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Color.FromArgb(255, 239, 105, 80), /* #EF6950 */
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Color.FromArgb(255, 218, 59, 1), /* #DA3B01 */
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Color.FromArgb(255, 202, 80, 16), /* #CA5010 */
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Color.FromArgb(255, 247, 99, 12), /* #F7630C */
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Color.FromArgb(255, 255, 140, 0), /* #FF8C00 */
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Color.FromArgb(255, 255, 185, 0), /* #FFB900 */
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},
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{
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Color.FromArgb(255, 231, 72, 86), /* #E74856 */
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Color.FromArgb(255, 232, 17, 35), /* #E81123 */
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Color.FromArgb(255, 234, 0, 94), /* #EA005E */
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Color.FromArgb(255, 195, 0, 82), /* #C30052 */
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Color.FromArgb(255, 227, 0, 140), /* #E3008C */
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Color.FromArgb(255, 191, 0, 119), /* #BF0077 */
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Color.FromArgb(255, 194, 57, 179), /* #C239B3 */
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Color.FromArgb(255, 154, 0, 137), /* #9A0089 */
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},
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{
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Color.FromArgb(255, 0, 120, 215), /* #0078D7 */
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Color.FromArgb(255, 0, 99, 177), /* #0063B1 */
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Color.FromArgb(255, 142, 140, 216), /* #8E8CD8 */
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Color.FromArgb(255, 107, 105, 214), /* #6B69D6 */
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Color.FromArgb(255, 135, 100, 184), /* #8764B8 */
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Color.FromArgb(255, 116, 77, 169), /* #744DA9 */
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Color.FromArgb(255, 177, 70, 194), /* #B146C2 */
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Color.FromArgb(255, 136, 23, 152), /* #881798 */
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},
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{
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Color.FromArgb(255, 0, 153, 188), /* #0099BC */
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Color.FromArgb(255, 45, 125, 154), /* #2D7D9A */
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Color.FromArgb(255, 0, 183, 195), /* #00B7C3 */
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Color.FromArgb(255, 3, 131, 135), /* #038387 */
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Color.FromArgb(255, 0, 178, 148), /* #00B294 */
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Color.FromArgb(255, 1, 133, 116), /* #018574 */
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Color.FromArgb(255, 0, 204, 106), /* #00CC6A */
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Color.FromArgb(255, 16, 137, 62), /* #10893E */
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},
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{
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Color.FromArgb(255, 122, 117, 116), /* #7A7574 */
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Color.FromArgb(255, 93, 90, 80), /* #5D5A58 */
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Color.FromArgb(255, 104, 118, 138), /* #68768A */
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Color.FromArgb(255, 81, 92, 107), /* #515C6B */
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Color.FromArgb(255, 86, 124, 115), /* #567C73 */
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Color.FromArgb(255, 72, 104, 96), /* #486860 */
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Color.FromArgb(255, 73, 130, 5), /* #498205 */
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Color.FromArgb(255, 16, 124, 16), /* #107C10 */
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},
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{
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Color.FromArgb(255, 118, 118, 118), /* #767676 */
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Color.FromArgb(255, 76, 74, 72), /* #4C4A48 */
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Color.FromArgb(255, 105, 121, 126), /* #69797E */
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Color.FromArgb(255, 74, 84, 89), /* #4A5459 */
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Color.FromArgb(255, 100, 124, 100), /* #647C64 */
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Color.FromArgb(255, 82, 94, 84), /* #525E54 */
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Color.FromArgb(255, 132, 117, 69), /* #847545 */
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Color.FromArgb(255, 126, 115, 95), /* #7E735F */
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}
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};
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static ColorPicker()
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{
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ValueProperty.Changed.AddClassHandler<ColorPicker>((c, _) => c.UpdateColors());
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}
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public override void Render(DrawingContext context)
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{
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base.Render(context);
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// Color table.
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{
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// Colors
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for (int i = 0; i < 6; i++)
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{
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for (int j = 0; j < 8; j++)
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context.FillRectangle(new SolidColorBrush(COLOR_TABLE[i, j]), new Rect(j * 32, i * 32, 32, 32));
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}
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// Borders
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var border = this.FindResource("Brush.Border0") as IBrush;
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var pen = new Pen(border, 0.4);
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for (int i = 1; i < 6; i++)
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context.DrawLine(pen, new Point(0, i * 32), new Point(256, i * 32));
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for (int j = 1; j < 8; j++)
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context.DrawLine(pen, new Point(j * 32, 0), new Point(j * 32, 192));
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// Selected
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if (_hightlightedTableRect is { } rect)
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context.DrawRectangle(new Pen(Brushes.White, 2), rect);
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}
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// Palette picker
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{
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context.DrawRectangle(Brushes.Transparent, null, new Rect(0, 200, 256, 32), 4, 4, _shadow);
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context.DrawRectangle(new SolidColorBrush(_darkestColor), null, _darkestRect);
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context.FillRectangle(new SolidColorBrush(_darkerColor), _darkerRect);
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context.FillRectangle(new SolidColorBrush(_darkColor), _darkRect);
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context.FillRectangle(new SolidColorBrush(_lightColor), _lightRect);
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context.FillRectangle(new SolidColorBrush(_lighterColor), _lighterRect);
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context.DrawRectangle(new SolidColorBrush(_lightestColor), null, _lightestRect);
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context.DrawRectangle(new SolidColorBrush(_color), null, new Rect(96, 200 - 4, 64, 40), 4, 4, _shadow);
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}
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}
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protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
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{
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base.OnPropertyChanged(change);
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if (change.Property == ValueProperty)
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{
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UpdateColors();
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InvalidateVisual();
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}
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}
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protected override void OnDataContextChanged(EventArgs e)
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{
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base.OnDataContextChanged(e);
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_hightlightedTableRect = null;
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}
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protected override Size MeasureOverride(Size availableSize)
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{
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return new Size(256, 256);
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}
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protected override void OnPointerPressed(PointerPressedEventArgs e)
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{
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base.OnPointerPressed(e);
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var p = e.GetPosition(this);
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if (_colorTableRect.Contains(p))
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{
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var col = (int)Math.Floor(p.X / 32.0);
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var row = (int)Math.Floor(p.Y / 32.0);
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var rect = new Rect(col * 32 + 2, row * 32 + 2, 28, 28);
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if (!rect.Equals(_hightlightedTableRect))
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{
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_hightlightedTableRect = rect;
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SetCurrentValue(ValueProperty, COLOR_TABLE[row, col].ToUInt32());
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}
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return;
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}
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if (_darkestRect.Rect.Contains(p))
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{
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_hightlightedTableRect = null;
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SetCurrentValue(ValueProperty, _darkestColor.ToUInt32());
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}
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else if (_darkerRect.Contains(p))
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{
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_hightlightedTableRect = null;
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SetCurrentValue(ValueProperty, _darkerColor.ToUInt32());
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}
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else if (_darkRect.Contains(p))
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{
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_hightlightedTableRect = null;
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SetCurrentValue(ValueProperty, _darkColor.ToUInt32());
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}
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else if (_lightRect.Contains(p))
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{
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_hightlightedTableRect = null;
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SetCurrentValue(ValueProperty, _lightColor.ToUInt32());
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}
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else if (_lighterRect.Contains(p))
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{
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_hightlightedTableRect = null;
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SetCurrentValue(ValueProperty, _lighterColor.ToUInt32());
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}
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else if (_lightestRect.Rect.Contains(p))
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{
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_hightlightedTableRect = null;
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SetCurrentValue(ValueProperty, _lightestColor.ToUInt32());
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}
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}
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private void UpdateColors()
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{
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_color = Color.FromUInt32(Value);
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var hsvColor = _color.ToHsv();
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_darkestColor = GetNextColor(hsvColor, -0.3);
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_darkerColor = GetNextColor(hsvColor, -0.2);
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_darkColor = GetNextColor(hsvColor, -0.1);
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_lightColor = GetNextColor(hsvColor, 0.1);
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_lighterColor = GetNextColor(hsvColor, 0.2);
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_lightestColor = GetNextColor(hsvColor, 0.3);
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}
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private Color GetNextColor(HsvColor c, double step)
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{
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var v = c.V;
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v += step;
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v = Math.Round(v, 2);
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var newColor = new HsvColor(c.A, c.H, c.S, v);
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return newColor.ToRgb();
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}
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private BoxShadows _shadow = BoxShadows.Parse("0 0 6 0 #A9000000");
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private Rect _colorTableRect = new Rect(0, 0, 32 * 8, 32 * 6);
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private RoundedRect _darkestRect = new RoundedRect(new Rect(0, 200, 32, 32), new CornerRadius(4, 0, 0, 4));
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private Rect _darkerRect = new Rect(32, 200, 32, 32);
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private Rect _darkRect = new Rect(64, 200, 32, 32);
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private Rect _lightRect = new Rect(160, 200, 32, 32);
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private Rect _lighterRect = new Rect(192, 200, 32, 32);
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private RoundedRect _lightestRect = new RoundedRect(new Rect(224, 200, 32, 32), new CornerRadius(0, 4, 4, 0));
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private Rect? _hightlightedTableRect = null;
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private Color _darkestColor;
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private Color _darkerColor;
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private Color _darkColor;
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private Color _color;
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private Color _lightColor;
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private Color _lighterColor;
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private Color _lightestColor;
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}
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}
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