emilk / emilk/egui

egui_extras::TableBuilder cells have an interaction area larger than the visual content if clipping is disabled

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bug
Dominant language
Rust
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Description

Describe the bug
egui_extras::TableBuilder cells have an interaction area larger than the visual content if clipping is disabled. This happens both in 0.30.0 and master.

To illustrate:
image
image

With column clipping enabled:
image

To Reproduce

ctx.style_mut(|style| {
    style.debug.show_widget_hits = true;
});

egui::Window::new("Test").show(ctx, |ui| {
    egui_extras::TableBuilder::new(ui)
        .sense(egui::Sense::click())
        .column(egui_extras::Column::remainder().clip(false)) // Switch to true to fix
        .column(egui_extras::Column::auto().clip(false)) // Switch to true to fix
        .header(20.0, |mut header| {
            header.col(|ui| {
                ui.heading("Column 1");
            });
            header.col(|ui| {
                ui.heading("Column q");
            });
        })
        .body(|body| {
            body.rows(30.0, 3, |mut row| {
                row.col(|ui| {
                    ui.label("Cell 1");
                });
                row.col(|ui| {
                    ui.label("Cell 2");
                });
            });
        });
});

Expected behavior
I expect the interaction area to be equivalent to the normal allocated visual region regardless of clipping.

Desktop (please complete the following information):

  • OS: MacOS
  • Browser: using eframe 0.30.0

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the provided egui_extras::TableBuilder reproduction, focusing on the .sense(egui::Sense::click()) setup and columns using .clip(false). Compare the interaction area with clipping enabled and disabled, then verify that the disabled-clipping case matches the normal visual region without regressing the enabled case.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
frontend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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