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image/zoom: Keep best-fit zoom in gesture

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Don't change the zoom in configure best fit if currently in gesture.
This commit is contained in:
Sophie Herold 2025-12-10 22:16:20 +01:00
parent 83b2c7cae1
commit f255af9f6a
2 changed files with 12 additions and 4 deletions
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1
news.d/49.2/fixed-zoom-gesture-jump Normal file
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@ -0,0 +1 @@
Don't jump to best-fit zoom level during pinch zoom gesture when scroolbars get displayed. This has only been an issue with the disability option "always show scrollbars."

15
src/widgets/image/zoom.rs
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@ -70,12 +70,19 @@ impl imp::LpImage {
/// Sets respective output values if best-fit is active /// Sets respective output values if best-fit is active
pub(super) fn configure_best_fit(&self) { pub(super) fn configure_best_fit(&self) {
log::trace!("Configure best fit");
// calculate new zoom value for best fit // calculate new zoom value for best fit
if self.obj().is_best_fit() { if self.obj().is_best_fit() {
let best_fit_level = self.zoom_level_best_fit(); // LpImage can get measured during pinch zoom gesture, when scrollbars appear
self.zoom.set(best_fit_level); // that are not overlayed (accessibility option.) This causes the best-fit to
self.set_zoom_target(best_fit_level); // change. Don't change the zoom level in this case since we are in the gesture
self.zoom_animation().pause(); // that will change the zoom level anyway.
if self.locked_gestured.get().is_none() {
let best_fit_level = self.zoom_level_best_fit();
self.zoom.set(best_fit_level);
self.set_zoom_target(best_fit_level);
self.zoom_animation().pause();
}
self.configure_adjustments(); self.configure_adjustments();
} }
} }