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Drag-to-scroll: now only on touch screens (#8181)

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* Part of https://github.com/emilk/egui/issues/8180

Drag-to-scroll is a must-have on touch-screens, since there is no other
way to scroll.

However, when you are not on a touch screens, it is more surprising than
useful.
This commit is contained in:
Emil Ernerfeldt
2026-05-20 10:41:51 +02:00
committed by GitHub
parent 07c6e0de0f
commit e64b7683a2
3 changed files with 135 additions and 75 deletions
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14
crates/egui_extras/src/table.rs
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@@ -5,7 +5,7 @@
use egui::{
Align, Id, NumExt as _, Rangef, Rect, Response, ScrollArea, Ui, Vec2, Vec2b,
scroll_area::{ScrollAreaOutput, ScrollBarVisibility, ScrollSource},
scroll_area::{DragScroll, ScrollAreaOutput, ScrollBarVisibility, ScrollSource},
};
use crate::{
@@ -180,7 +180,7 @@ fn to_sizing(columns: &[Column]) -> crate::sizing::Sizing {
struct TableScrollOptions {
vscroll: bool,
drag_to_scroll: bool,
drag_to_scroll: DragScroll,
stick_to_bottom: bool,
scroll_to_row: Option<(usize, Option<Align>)>,
scroll_offset_y: Option<f32>,
@@ -195,7 +195,7 @@ impl Default for TableScrollOptions {
fn default() -> Self {
Self {
vscroll: true,
drag_to_scroll: true,
drag_to_scroll: DragScroll::OnTouch,
stick_to_bottom: false,
scroll_to_row: None,
scroll_offset_y: None,
@@ -318,11 +318,13 @@ impl<'a> TableBuilder<'a> {
self
}
/// Enables scrolling the table's contents using mouse drag (default: `true`).
/// Controls scrolling the table's contents by dragging with the pointer.
///
/// See [`ScrollArea::scroll_source`] for more.
/// Defaults to [`DragScroll::OnTouch`] — only active when a touch screen is detected.
///
/// See [`ScrollArea::scroll_source`] and [`DragScroll`] for more.
#[inline]
pub fn drag_to_scroll(mut self, drag_to_scroll: bool) -> Self {
pub fn drag_to_scroll(mut self, drag_to_scroll: DragScroll) -> Self {
self.scroll_options.drag_to_scroll = drag_to_scroll;
self
}