[dynamic_color] Add tone-based colors to color scheme #599
There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| import 'package:flutter/material.dart'; | ||
|
|
||
| class ColorSchemes { | ||
| final ColorScheme light; | ||
| final ColorScheme dark; | ||
|
|
||
| const ColorSchemes({required this.light, required this.dark}); | ||
|
|
||
| factory ColorSchemes.fromList(List<int> colors) { | ||
| return ColorSchemes( | ||
| light: _colorSchemeFromList(colors, 0, Brightness.light), | ||
| dark: _colorSchemeFromList(colors, 1, Brightness.dark), | ||
| ); | ||
| } | ||
| } | ||
|
|
||
|
There was a problem hiding this comment. This is somewhat fragile an difficult to validate correctness with DynamicColorPlugin.kt There was a problem hiding this comment. Good point, I'll see if I can improve that. Perhaps a map with readable names instead of a list? |
||
| ColorScheme _colorSchemeFromList( | ||
| List<int> colors, int n, Brightness brightness) { | ||
| int offset = (colors.length ~/ 2) * n; | ||
| return ColorScheme( | ||
| brightness: brightness, | ||
| primary: Color(colors[offset + 0]), | ||
| onPrimary: Color(colors[offset + 1]), | ||
| primaryContainer: Color(colors[offset + 2]), | ||
| onPrimaryContainer: Color(colors[offset + 3]), | ||
| primaryFixed: Color(colors[offset + 4]), | ||
| primaryFixedDim: Color(colors[offset + 5]), | ||
| onPrimaryFixed: Color(colors[offset + 6]), | ||
| onPrimaryFixedVariant: Color(colors[offset + 7]), | ||
| secondary: Color(colors[offset + 8]), | ||
| onSecondary: Color(colors[offset + 9]), | ||
| secondaryContainer: Color(colors[offset + 10]), | ||
| onSecondaryContainer: Color(colors[offset + 11]), | ||
| secondaryFixed: Color(colors[offset + 12]), | ||
| secondaryFixedDim: Color(colors[offset + 13]), | ||
| onSecondaryFixed: Color(colors[offset + 14]), | ||
| onSecondaryFixedVariant: Color(colors[offset + 15]), | ||
| tertiary: Color(colors[offset + 16]), | ||
| onTertiary: Color(colors[offset + 17]), | ||
| tertiaryContainer: Color(colors[offset + 18]), | ||
| onTertiaryContainer: Color(colors[offset + 19]), | ||
| tertiaryFixed: Color(colors[offset + 20]), | ||
| tertiaryFixedDim: Color(colors[offset + 21]), | ||
| onTertiaryFixed: Color(colors[offset + 22]), | ||
| onTertiaryFixedVariant: Color(colors[offset + 23]), | ||
| error: Color(colors[offset + 24]), | ||
| onError: Color(colors[offset + 25]), | ||
| errorContainer: Color(colors[offset + 26]), | ||
| onErrorContainer: Color(colors[offset + 27]), | ||
| surface: Color(colors[offset + 28]), | ||
| onSurface: Color(colors[offset + 29]), | ||
| surfaceDim: Color(colors[offset + 30]), | ||
| surfaceBright: Color(colors[offset + 31]), | ||
| onSurfaceVariant: Color(colors[offset + 32]), | ||
| surfaceContainerLowest: Color(colors[offset + 33]), | ||
| surfaceContainerLow: Color(colors[offset + 34]), | ||
| surfaceContainer: Color(colors[offset + 35]), | ||
| surfaceContainerHigh: Color(colors[offset + 36]), | ||
| surfaceContainerHighest: Color(colors[offset + 37]), | ||
| inverseSurface: Color(colors[offset + 38]), | ||
| onInverseSurface: Color(colors[offset + 39]), | ||
| inversePrimary: Color(colors[offset + 40]), | ||
| outline: Color(colors[offset + 41]), | ||
| outlineVariant: Color(colors[offset + 42]), | ||
| ); | ||
| } | ||
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,3 @@ | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:material_color_utilities/material_color_utilities.dart'; | ||
|
|
||
|
|
@@ -9,47 +6,137 @@ extension CorePaletteToColorScheme on CorePalette { | |
| ColorScheme toColorScheme({ | ||
| Brightness brightness = Brightness.light, | ||
| }) { | ||
| switch (brightness) { | ||
| case Brightness.light: | ||
| return _toLightColorScheme(); | ||
| case Brightness.dark: | ||
| return _toDarkColorScheme(); | ||
| } | ||
| } | ||
|
|
||
| ColorScheme _toLightColorScheme() { | ||
| return ColorScheme( | ||
| brightness: Brightness.light, | ||
| primary: Color(primary.get(40)), | ||
| onPrimary: Color(primary.get(100)), | ||
| primaryContainer: Color(primary.get(90)), | ||
| onPrimaryContainer: Color(primary.get(10)), | ||
| primaryFixed: Color(primary.get(90)), | ||
| primaryFixedDim: Color(primary.get(80)), | ||
| onPrimaryFixed: Color(primary.get(10)), | ||
| onPrimaryFixedVariant: Color(primary.get(30)), | ||
| secondary: Color(secondary.get(40)), | ||
| onSecondary: Color(secondary.get(100)), | ||
| secondaryContainer: Color(secondary.get(90)), | ||
| onSecondaryContainer: Color(secondary.get(10)), | ||
| secondaryFixed: Color(secondary.get(90)), | ||
| secondaryFixedDim: Color(secondary.get(80)), | ||
| onSecondaryFixed: Color(secondary.get(10)), | ||
| onSecondaryFixedVariant: Color(secondary.get(30)), | ||
| tertiary: Color(tertiary.get(40)), | ||
| onTertiary: Color(tertiary.get(100)), | ||
| tertiaryContainer: Color(tertiary.get(90)), | ||
| onTertiaryContainer: Color(tertiary.get(10)), | ||
| tertiaryFixed: Color(tertiary.get(90)), | ||
| tertiaryFixedDim: Color(tertiary.get(80)), | ||
| onTertiaryFixed: Color(tertiary.get(10)), | ||
| onTertiaryFixedVariant: Color(tertiary.get(30)), | ||
| error: Color(error.get(40)), | ||
| onError: Color(error.get(100)), | ||
| errorContainer: Color(error.get(90)), | ||
| onErrorContainer: Color(error.get(10)), | ||
| surface: _guessTone(neutral, 98), | ||
| onSurface: Color(neutral.get(10)), | ||
| surfaceDim: _guessTone(neutral, 87), | ||
| surfaceBright: _guessTone(neutral, 98), | ||
| onSurfaceVariant: Color(neutralVariant.get(30)), | ||
| surfaceContainerLowest: Color(neutral.get(100)), | ||
| surfaceContainerLow: _guessTone(neutral, 96), | ||
| surfaceContainer: _guessTone(neutral, 94), | ||
| surfaceContainerHigh: _guessTone(neutral, 92), | ||
| surfaceContainerHighest: Color(neutral.get(90)), | ||
| inverseSurface: Color(neutral.get(20)), | ||
| onInverseSurface: Color(neutral.get(95)), | ||
| inversePrimary: Color(primary.get(80)), | ||
| outline: Color(neutralVariant.get(50)), | ||
| outlineVariant: Color(neutralVariant.get(80)), | ||
| ); | ||
| } | ||
|
|
||
| ColorScheme _toDarkColorScheme() { | ||
| return ColorScheme( | ||
| brightness: Brightness.dark, | ||
| primary: Color(primary.get(80)), | ||
| onPrimary: Color(primary.get(20)), | ||
| primaryContainer: Color(primary.get(30)), | ||
| onPrimaryContainer: Color(primary.get(90)), | ||
| primaryFixed: Color(primary.get(90)), | ||
| primaryFixedDim: Color(primary.get(80)), | ||
| onPrimaryFixed: Color(primary.get(10)), | ||
| onPrimaryFixedVariant: Color(primary.get(30)), | ||
| secondary: Color(secondary.get(80)), | ||
| onSecondary: Color(secondary.get(20)), | ||
| secondaryContainer: Color(secondary.get(30)), | ||
| onSecondaryContainer: Color(secondary.get(90)), | ||
| secondaryFixed: Color(secondary.get(90)), | ||
| secondaryFixedDim: Color(secondary.get(80)), | ||
| onSecondaryFixed: Color(secondary.get(10)), | ||
| onSecondaryFixedVariant: Color(secondary.get(30)), | ||
| tertiary: Color(tertiary.get(80)), | ||
| onTertiary: Color(tertiary.get(20)), | ||
| tertiaryContainer: Color(tertiary.get(30)), | ||
| onTertiaryContainer: Color(tertiary.get(90)), | ||
| tertiaryFixed: Color(tertiary.get(90)), | ||
| tertiaryFixedDim: Color(tertiary.get(80)), | ||
| onTertiaryFixed: Color(tertiary.get(10)), | ||
| onTertiaryFixedVariant: Color(tertiary.get(30)), | ||
| error: Color(error.get(80)), | ||
| onError: Color(error.get(20)), | ||
| errorContainer: Color(error.get(30)), | ||
| onErrorContainer: Color(error.get(90)), | ||
| surface: _guessTone(neutral, 6), | ||
| onSurface: Color(neutral.get(90)), | ||
| surfaceDim: _guessTone(neutral, 6), | ||
| surfaceBright: _guessTone(neutral, 24), | ||
| onSurfaceVariant: Color(neutralVariant.get(80)), | ||
| surfaceContainerLowest: _guessTone(neutral, 4), | ||
| surfaceContainerLow: Color(neutral.get(10)), | ||
| surfaceContainer: _guessTone(neutral, 12), | ||
| surfaceContainerHigh: _guessTone(neutral, 17), | ||
| surfaceContainerHighest: _guessTone(neutral, 22), | ||
| inverseSurface: Color(neutral.get(90)), | ||
| onInverseSurface: Color(neutral.get(20)), | ||
| inversePrimary: Color(primary.get(40)), | ||
| outline: Color(neutralVariant.get(60)), | ||
| outlineVariant: Color(neutralVariant.get(30)), | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| // This logic is taken from material_color_utilities 0.12 - https://github.com/material-foundation/material-color-utilities/blob/be615fc90286787bbe0c04ef58a6987e0e8fdc29/dart/lib/palettes/tonal_palette.dart#L93C5-L111. | ||
| // Once flutter updates to the latest version, this workaround can be removed. | ||
|
There was a problem hiding this comment. Best to wait for flutter/flutter#170000 rather than introduce workarounds IMO |
||
| Color _guessTone(TonalPalette palette, double tone) { | ||
| // Approximately deduces the original hue and chroma that generated this | ||
| // list of colors. | ||
| // Uses the hue and chroma of the provided color with the highest chroma. | ||
|
|
||
| var bestHue = 0.0, bestChroma = 0.0; | ||
| for (final argb in palette.asList) { | ||
| final hct = Hct.fromInt(argb); | ||
| if (hct.tone == tone) { | ||
| return Color(hct.toInt()); | ||
| } | ||
|
|
||
| // If the color is too close to white, its chroma may have been | ||
| // affected by a known issue, so we ignore it. | ||
| // https://github.com/material-foundation/material-color-utilities/issues/140 | ||
|
|
||
| if (hct.tone > 98.0) continue; | ||
|
|
||
| if (hct.chroma > bestChroma) { | ||
| bestHue = hct.hue; | ||
| bestChroma = hct.chroma; | ||
| } | ||
| } | ||
| return Color(Hct.from(bestHue, bestChroma, tone).toInt()); | ||
| } | ||
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Why not obtain
system_palette_key_color_primary_lightand other key colors and generate the scheme directly?There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Is that guaranteed to return the same colours as this code that is querying from the system? Again, this code is based on the official Android implementation here, and I think it would be good to keep the implementation as similar as possible to ensure consistency with non-Flutter apps.