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BFlatandClaude Opus 5.5
6d7b30508b
Pixel preview takes a resolution: `view.pixelPreview {scale: 1|2}` turns it on at 1x (one rendered
pixel per page pixel) or 2x (two, as on a high-density display); the canvas renders at that
resolution from a whole-pixel origin and magnifies it with hard edges once zoomed past it. The zoom
menu offers "Pixel preview 1x" and "2x" and now shows the on/off state of every view toggle.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
39 lines
1.3 KiB
Rust
39 lines
1.3 KiB
Rust
//! Pixel preview: toggling it, and its 1x / 2x resolution.
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use serde_json::json;
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use crate::Session;
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fn preview(s: &Session) -> (bool, u8) {
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let v = &s.ds().unwrap().view;
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(v.pixel_preview, v.pixel_scale)
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}
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#[test]
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fn toggles_and_sets_its_resolution() {
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let mut s = Session::new();
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assert_eq!(preview(&s), (false, 1));
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s.execute("view.pixelPreview", &json!({})).unwrap();
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assert_eq!(preview(&s), (true, 1));
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s.execute("view.pixelPreview", &json!({})).unwrap();
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assert_eq!(preview(&s), (false, 1));
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// A resolution turns it on.
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let r = s.execute("view.pixelPreview", &json!({"scale": 2})).unwrap();
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assert_eq!(r, json!({"on": true, "scale": 2}));
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assert_eq!(preview(&s), (true, 2));
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// Turning it off keeps the resolution for next time.
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s.execute("view.pixelPreview", &json!({"on": false})).unwrap();
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assert_eq!(preview(&s), (false, 2));
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s.execute("view.pixelPreview", &json!({"on": true, "scale": 1})).unwrap();
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assert_eq!(preview(&s), (true, 1));
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}
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#[test]
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fn rejects_other_resolutions() {
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let mut s = Session::new();
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for bad in [json!(3), json!(0), json!(1.5), json!("2"), json!(-1)] {
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assert!(s.execute("view.pixelPreview", &json!({"scale": bad})).is_err(), "{bad}");
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}
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assert_eq!(preview(&s), (false, 1));
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}
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