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feat: Add `Scene::sense` option for customising how `Scene` should respond to user input (#5893) 

Allows for specifying how the `Scene` should respond to user input.

With #5892, closes #5891.

---

Edit: Failing tests unrelated and appear on master:
https://github.com/emilk/egui/actions/runs/14330259861/job/40164414607.

---------

Co-authored-by: Lucas Meurer <lucasmeurer96@gmail.com>
This commit is contained in:
mitchmindtree 2025-04-29 20:07:39 +10:00 committed by GitHub
parent 8d9e42413a
commit fed2ab5df3
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1 changed files with 14 additions and 1 deletions
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15
crates/egui/src/containers/scene.rs
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@ -45,6 +45,7 @@ fn fit_to_rect_in_scene(
#[must_use = "You should call .show()"] #[must_use = "You should call .show()"]
pub struct Scene { pub struct Scene {
zoom_range: Rangef, zoom_range: Rangef,
sense: Sense,
max_inner_size: Vec2, max_inner_size: Vec2,
drag_pan_buttons: DragPanButtons, drag_pan_buttons: DragPanButtons,
} }
@ -76,6 +77,7 @@ impl Default for Scene {
fn default() -> Self { fn default() -> Self {
Self { Self {
zoom_range: Rangef::new(f32::EPSILON, 1.0), zoom_range: Rangef::new(f32::EPSILON, 1.0),
sense: Sense::click_and_drag(),
max_inner_size: Vec2::splat(1000.0), max_inner_size: Vec2::splat(1000.0),
drag_pan_buttons: DragPanButtons::all(), drag_pan_buttons: DragPanButtons::all(),
} }
@ -88,6 +90,17 @@ impl Scene {
Default::default() Default::default()
} }
/// Specify what type of input the scene should respond to.
///
/// The default is `Sense::click_and_drag()`.
///
/// Set this to `Sense::hover()` to disable panning via clicking and dragging.
#[inline]
pub fn sense(mut self, sense: Sense) -> Self {
self.sense = sense;
self
}
/// Set the allowed zoom range. /// Set the allowed zoom range.
/// ///
/// The default zoom range is `0.0..=1.0`, /// The default zoom range is `0.0..=1.0`,
@ -184,7 +197,7 @@ impl Scene {
UiBuilder::new() UiBuilder::new()
.layer_id(scene_layer_id) .layer_id(scene_layer_id)
.max_rect(Rect::from_min_size(Pos2::ZERO, self.max_inner_size)) .max_rect(Rect::from_min_size(Pos2::ZERO, self.max_inner_size))
.sense(Sense::click_and_drag()), .sense(self.sense),
); );
let mut pan_response = local_ui.response(); let mut pan_response = local_ui.response();