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62 lines
2.6 KiB
Rust
62 lines
2.6 KiB
Rust
//! Spacebar-drag panning in the Timeline: the Hand tool scrolls the layer rows vertically as well
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//! as the time graph horizontally (#2083).
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use effectcraft_engine::Session;
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use effectcraft_ui_egui::EffectcraftApp;
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use egui::{Event, Modifiers, Pos2, pos2, vec2};
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use egui_kittest::Harness;
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use serde_json::json;
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/// A 10 s comp with 40 solids, enough rows to scroll.
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fn harness() -> (Harness<'static, EffectcraftApp>, u64) {
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let mut s = Session::default();
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s.execute("comp.new", json!({"name": "Many", "width": 320, "height": 180, "frameRate": 30, "duration": 10})).unwrap();
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let mut top = 0;
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for i in 0..40 {
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top = s.execute("layer.newSolid", json!({"name": format!("Layer {i}"), "color": "#406080"})).unwrap()["layer"].as_u64().unwrap();
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}
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s.execute("layer.select", json!({"layers": []})).unwrap();
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let app = EffectcraftApp::new(s);
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let mut h = Harness::builder().with_size(vec2(1200.0, 800.0)).build_eframe(|_| app);
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h.run_steps(4);
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(h, top)
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}
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fn space(h: &mut Harness<'_, EffectcraftApp>, pressed: bool) {
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h.event(Event::Key { key: egui::Key::Space, physical_key: None, pressed, repeat: false, modifiers: Modifiers::NONE });
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h.step();
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}
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fn drag(h: &mut Harness<'_, EffectcraftApp>, from: Pos2, to: Pos2) {
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h.event(Event::PointerMoved(from));
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h.step();
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h.event(Event::PointerButton { pos: from, button: egui::PointerButton::Primary, pressed: true, modifiers: Modifiers::NONE });
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h.step();
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for k in 1..=10 {
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h.event(Event::PointerMoved(from + (to - from) * (k as f32 / 10.0)));
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h.step();
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}
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h.event(Event::PointerButton { pos: to, button: egui::PointerButton::Primary, pressed: false, modifiers: Modifiers::NONE });
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h.run_steps(3);
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}
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#[test]
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fn spacebar_drag_pans_the_rows_vertically() {
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let (mut h, layer) = harness();
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assert_eq!(h.state().ui.timeline.scroll_y, 0.0);
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let bar = h.state().auto.find(&format!("timeline.layer.{layer}.bar")).expect("layer bar").rect;
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let from = pos2(bar[0] + 40.0, bar[1] + bar[3] / 2.0);
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let timing = |h: &Harness<'_, EffectcraftApp>| {
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let l = &h.state().session.active_comp().unwrap().layers[0];
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(l.in_point.seconds(), l.out_point.seconds(), l.start_time.seconds())
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};
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let before = timing(&h);
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space(&mut h, true);
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drag(&mut h, from, from - vec2(0.0, 180.0));
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space(&mut h, false);
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let y = h.state().ui.timeline.scroll_y;
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assert!(y > 100.0, "the rows scrolled vertically: {y}");
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assert_eq!(h.state().ui.timeline.start, 0.0, "the time graph did not pan sideways");
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assert_eq!(timing(&h), before, "the layer under the hand did not move");
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}
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