-
Notifications
You must be signed in to change notification settings - Fork 328
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
remove the dep on package:ansicolor (#8599)
- Loading branch information
1 parent
2daf971
commit 0a77055
Showing
6 changed files
with
111 additions
and
39 deletions.
There are no files selected for viewing
This file contains 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 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 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 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 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 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 +1,71 @@ | ||
| // Copyright 2024 The Chromium Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
|
|
||
| class AnsiWriter { | ||
| static const _escape = '\x1B['; | ||
|
|
||
| int? _foreground; | ||
| int? _background; | ||
|
|
||
| /// Sets the pen color to the rgb value between 0.0..1.0. | ||
| void rgb({num r = 1.0, num g = 1.0, num b = 1.0, bool bg = false}) { | ||
| xterm( | ||
| (r.clamp(0.0, 1.0) * 5).toInt() * 36 + | ||
| (g.clamp(0.0, 1.0) * 5).toInt() * 6 + | ||
| (b.clamp(0.0, 1.0) * 5).toInt() + | ||
| 16, | ||
| bg: bg, | ||
| ); | ||
| } | ||
|
|
||
| /// Sets the pen color to a grey scale value between 0.0 and 1.0. | ||
| void gray({num level = 1.0, bool bg = false}) { | ||
| xterm(232 + (level.clamp(0.0, 1.0) * 23).round(), bg: bg); | ||
| } | ||
|
|
||
| void white({bool bg = false, bool bold = false}) { | ||
| _standardColor(7, bold, bg); | ||
| } | ||
|
|
||
| void _standardColor(int color, bool bold, bool bg) { | ||
| xterm(color + (bold ? 8 : 0), bg: bg); | ||
| } | ||
|
|
||
| /// Directly index the xterm 256 color palette. | ||
| void xterm(int color, {bool bg = false}) { | ||
| final c = | ||
| color < 0 | ||
| ? 0 | ||
| : color > 255 | ||
| ? 255 | ||
| : color; | ||
|
|
||
| if (bg) { | ||
| _background = c; | ||
| } else { | ||
| _foreground = c; | ||
| } | ||
| } | ||
|
|
||
| /// Write the [message] with the pen's current settings. | ||
| String write(Object message) { | ||
| final pen = StringBuffer(); | ||
| if (_foreground != null) { | ||
| pen.write('${_escape}38;5;${_foreground}m'); | ||
| } | ||
| if (_background != null) { | ||
| pen.write('${_escape}48;5;${_background}m'); | ||
| } | ||
|
|
||
| const normal = '${_escape}0m'; | ||
|
|
||
| return '$pen$message$normal'; | ||
| } | ||
|
|
||
| /// Resets the pen's attributes. | ||
| void reset() { | ||
| _background = null; | ||
| _foreground = null; | ||
| } | ||
| } |