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original uri https://github.com/zed-industries/zed
https://zed.dev
a3964a565c
data_table: Replace column width builder API with `ColumnWidthConfig`
enum
This PR consolidates the data table width configuration API from three
separate builder methods (`.column_widths()`, `.resizable_columns()`,
`.width()`) into a single `.width_config(ColumnWidthConfig)` call. This
makes invalid state combinations unrepresentable and clarifies the two
distinct width management modes.
**What changed:**
- Introduces `ColumnWidthConfig` enum with two variants:
- `Static`: Fixed column widths, no resize handles
- `Redistributable`: Drag-to-resize columns that redistribute space
within a fixed table width
- Introduces `TableResizeBehavior` enum (`None`, `Resizable`,
`MinSize(f32)`) for per-column resize policy
- Renames `TableColumnWidths` → `RedistributableColumnsState` to better
reflect its purpose
- Extracts all width management logic into a new `width_management.rs`
module
- Updates all callers: `csv_preview`, `git_graph`, `keymap_editor`,
`edit_prediction_context_view`
```rust
pub enum ColumnWidthConfig {
/// Static column widths (no resize handles).
Static {
widths: StaticColumnWidths,
/// Controls widths of the whole table.
table_width: Option<DefiniteLength>,
},
/// Redistributable columns — dragging redistributes the fixed available space
/// among columns without changing the overall table width.
Redistributable {
entity: Entity<RedistributableColumnsState>,
table_width: Option<DefiniteLength>,
},
}
```
**Why:**
The old API allowed callers to combine methods incorrectly. The new
enum-based design enforces correct usage at compile time and provides a
clearer path for adding independently resizable columns in PR #3.
**Context:**
This is part 2 of a 3-PR series improving data table column width
handling:
1. [#51059](https://github.com/zed-industries/zed/pull/51059) - Extract
modules into separate files (mechanical change)
2. **This PR**: Introduce width config enum for redistributable column
widths (API rework)
3. Implement independently resizable column widths (new feature)
The series builds on previously merged infrastructure:
- [#46341](https://github.com/zed-industries/zed/pull/46341) - Data
table dynamic column support
- [#46190](https://github.com/zed-industries/zed/pull/46190) - Variable
row height mode for data tables
Primary beneficiary: CSV preview feature
([#48207](https://github.com/zed-industries/zed/pull/48207))
### Anthony's note
This PR also fixes the table dividers being a couple pixels off, and the
csv preview from having double line rendering for a single column in
some cases.
Before you mark this PR as ready for review, make sure that you have:
- [x] Added a solid test coverage and/or screenshots from doing manual
testing
- [x] Done a self-review taking into account security and performance
aspects
- [ ] Aligned any UI changes with the [UI
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
Release Notes:
- N/A
---------
Co-authored-by: Anthony Eid <anthony@zed.dev>
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Zed
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