mirror of
https://github.com/flutter/flutter.git
synced 2026-02-12 22:03:04 +08:00
35b5342f9c
Re-implementation of PR #172441 <!-- Thanks for filing a pull request! Reviewers are typically assigned within a week of filing a request. To learn more about code review, see our documentation on Tree Hygiene: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md --> ## Add non-uniform border radius support to TableBorder This PR extends TableBorder to support border radius even when the outer border sides have different widths but the same color, similar to the non-uniform border support added to Border in #121921. ### Changes - Enhanced border rendering logic: TableBorder can now apply border radius when outer border sides have uniform colors but non-uniform widths/styles - New helper methods: Added `outerBorderIsUniform` property and `distinctVisibleOuterColors()` method to determine border uniformity - Optimized paint method: Refactored the paint logic to handle three scenarios: 1. Fully uniform borders (existing optimized path) 2. Outer borders with uniform colors but non-uniform widths (new non-uniform border radius support) 3. Completely non-uniform borders (fallback to standard border painting) ### Before/After - Before: TableBorder with border radius required all sides (including inner borders) to be completely identical. - After: TableBorder with border radius only requires outer border colors to be the same, allowing different widths per side. ### Example Usage ```dart TableBorder( top: BorderSide(color: Colors.blue, width: 3.0), right: BorderSide(color: Colors.blue, width: 1.0), // Different width bottom: BorderSide(color: Colors.blue, width: 2.0), // Different width left: BorderSide.none, // No border horizontalInside: BorderSide(color: Colors.red, width: 1.0), // Different color OK verticalInside: BorderSide(color: Colors.red, width: 1.0), // Different color OK borderRadius: BorderRadius.circular(8), // ✅ Now works! ) ``` Fixes: #173193 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md