How Can i Create a Scrollable list of the Number's using the egui like in the image but 1 Column.

[SohamTilekar]

How Can i Create a Scrollable list of the Number's using the egui & eframe like in the image but 1 Column.

00  data |
02  data |
02  data |

data is the 32 bit hex char.
and | is the scrolling bar

The Data Is an long Array So it is Super Slow, & I reeded the the Doc.

[SohamTilekar]

I trid the Things From demo But it didn't work because the array length is 2^24

[YgorSouza]

You mean something like this with the show_rows method?

struct MyApp {
    values: Vec<u32>,
}

impl Default for MyApp {
    fn default() -> Self {
        Self {
            values: (1..(1 << 23)).collect(),
        }
    }
}

impl eframe::App for MyApp {
    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
        egui::CentralPanel::default().show(ctx, |ui| {
            let height = TextStyle::Body.resolve(ui.style()).size;
            ScrollArea::vertical().show_rows(ui, height, self.values.len(), |ui, row_range| {
                ui.allocate_space([ui.available_width(), 0.0].into());
                for i in row_range {
                    let Some(value) = self.values.get(i) else {
                        continue;
                    };
                    ui.label(format!("{value:08x}"));
                }
            })
        });
    }
}

This seems to work fine up to 2^23 items, but with more than that you start having floating-point precision problems, since all the positions are stored in f32 which has 24 bits of precision.

[YgorSouza]

When I try to Put Both Side By side then they Don't extend till end and if i Move 1 Then Both Move's.

If you have multiple scroll areas in the same UI, you have to give each of them a different Id using the id_source method.

[SohamTilekar]

I Try to set the .min_scrolled_height(ui.available_height()) but it did this.

[YgorSouza]

Hard to know why this is happening without seeing the whole code. You can use the debug tools to see how much space is being allocated for each UI, and then adjust the layouts to do what you want.

ui.painter().debug_rect(ui.max_rect(), Color32::GREEN, "UI1");
ui.debug_paint_cursor();

[SohamTilekar]

@YgorSouza The Searcher DO not Work with More than 1 Input Character entered it only used the 1 character.

[YgorSouza]

@YgorSouza The Searcher DO not Work with More than 1 Input Character entered it only used the 1 character.

In the example I gave you? It's working fine for me.

            let mut search = None;
            if ui.text_edit_singleline(&mut self.search).changed() {
                search = u32::from_str_radix(&self.search, 16).ok();
            }

This is going to parse whatever you type as a hex string, and put it in the number variable so you can search for it in the data array.