migrations/egui
1
0
Fork 0
mirror of https://github.com/emilk/egui.git synced 2026-09-02 23:00:04 -04:00
Code Activity

Add WidgetType::Image and Image::alt_text (#5534)

Browse Source 
This adds `WidgetType::Image` and correctly sets it in the Image widget.
This allows us to query for images in kittest tests and tells accesskit
that a node is an image.
It also adds `Image::alt_text` to set a text that will be shown if the
image fails to load and will be read via screen readers. This also
allows us to query images by label in kittest.


* [x] I have followed the instructions in the PR template

---------

Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
This commit is contained in:
lucasmerlin
2024-12-30 12:53:46 +01:00
committed by GitHub
parent 86ea3f8a5c
commit e32ca218e8
9 changed files with 96 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
crates/egui_demo_app/src/apps/image_viewer.rs
View File

@@ -14,6 +14,7 @@ pub struct ImageViewer {
fit: ImageFit,
maintain_aspect_ratio: bool,
max_size: Vec2,
alt_text: String,
}
#[derive(Clone, Copy, PartialEq, Eq)]
@@ -44,6 +45,7 @@ impl Default for ImageViewer {
fit: ImageFit::Fraction(Vec2::splat(1.0)),
maintain_aspect_ratio: true,
max_size: Vec2::splat(2048.0),
alt_text: "My Image".to_owned(),
}
}
}
@@ -185,6 +187,11 @@ impl eframe::App for ImageViewer {
ui.label("Aspect ratio is maintained by scaling both sides as necessary");
ui.checkbox(&mut self.maintain_aspect_ratio, "Maintain aspect ratio");
// alt text
ui.add_space(5.0);
ui.label("Alt text");
ui.text_edit_singleline(&mut self.alt_text);
// forget all images
if ui.button("Forget all images").clicked() {
ui.ctx().forget_all_images();
@@ -211,6 +218,9 @@ impl eframe::App for ImageViewer {
}
image = image.maintain_aspect_ratio(self.maintain_aspect_ratio);
image = image.max_size(self.max_size);
if !self.alt_text.is_empty() {
image = image.alt_text(&self.alt_text);
}
ui.add_sized(ui.available_size(), image);
});