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image: Fix image centering creates blur

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Ensure to only move by physical pixel values
This commit is contained in:
Sophie Herold 2023-01-30 01:53:13 +01:00 • committed by Christopher Davis
parent fc553d108c
commit 74d148572f
1 changed files with 6 additions and 3 deletions
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9
src/widgets/image.rs
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@ -453,10 +453,13 @@ mod imp {
// vertical centering in widget when no scrolling // vertical centering in widget when no scrolling
let x = f64::max((widget_width - widget.image_displayed_width()) / 2.0, 0.); let x = f64::max((widget_width - widget.image_displayed_width()) / 2.0, 0.);
snapshot.translate(&graphene::Point::new(x as f32, 0.));
let y = f64::max((widget_height - widget.image_displayed_height()) / 2.0, 0.); let y = f64::max((widget_height - widget.image_displayed_height()) / 2.0, 0.);
snapshot.translate(&graphene::Point::new(0., y as f32)); // round to pixel values to not have a half pixel offset to physical pixels
// the offset would leading to a blury output
snapshot.translate(&graphene::Point::new(
widget.round(x) as f32,
widget.round(y) as f32,
));
// apply the transformations from properties // apply the transformations from properties
snapshot.rotate(widget.rotation() as f32); snapshot.rotate(widget.rotation() as f32);