Table in Rust misses some methods compared to C code

[vortex314]

Hi, here again with next one. ;-) Your swift feedback keeps me motivated to make my application work with LVGL. The following code seems to miss the methods set_col_width and set set_row_height while they are exposed in the C source. https://docs.lvgl.io/master/widgets/table.html#width-and-height

    {
        let mut table = Table::create(&mut cont)?;
        let table_style = new_grid_style(&mut styles, 7, 2, 6, 6);
        table.add_style(Part::Main, table_style)?;
        table.set_col_cnt(3)?;
        table.set_row_cnt(3)?;
        table.set_col_width(0, 100)?;
        table.set_col_width(1, 100)?;
        table.set_col_width(2, 100)?;
        table.set_row_height(0, 50)?;
        table.set_row_height(1, 50)?;
        table.set_row_height(2, 50)?;
        table.set_cell_value(0, 0, & mut CString::new("1").unwrap())?;
        table.set_cell_value(0, 1, &CString::new("2").unwrap())?;
        table.set_cell_value(0, 2, &CString::new("3").unwrap())?;
        table.set_cell_value(1, 0, &CString::new("4").unwrap())?;
        table.set_cell_value(1, 1, &CString::new("5").unwrap())?;
        table.set_cell_value(1, 2, &CString::new("6").unwrap())?;
        table.set_cell_value(2, 0, &CString::new("7").unwrap())?;
        table.set_cell_value(2, 1, &CString::new("8").unwrap())?;
        table.set_cell_value(2, 2, &CString::new("9").unwrap())?;
        table.on_event(|_table, _event| {
            match _event {
                Event::Clicked => {
                    info!("Table clicked");
                }
                _ => {}
            }
        })?;

    }

Secondary question : how can I detect which cell was clicked ? I this via lv_table_get_selected_cell or via lv_event_get_draw_part_dsc ? Thanks again for your enduring assistance.

[nia-e]

Hi! Opened a PR to fix this. Presumably, get_selected_cell would be the correct function to call. See #123 and let me know if it's fine as usual.

[vortex314]

Looks you missed : tabel.set_row_height in the wrapper.

[nia-e]

There is no height-setting function; in the link you provided (https://docs.lvgl.io/master/widgets/table.html#width-and-height) it states that height is auto-calculated based on other info, and also there is no lv_table_set_row_height() function at all.

[vortex314]

indeed you're right. My bad.

[nia-e]

Anything else needed to use tables?

[vortex314]

In version 7.11 there was a call lv_table_set_cell_type which permitted to later on apply a different style to some cells in the table. I didn't find the equivalent in 8.3 yet. The target is that the head row is colored and can be used upon clicking to sort the data.

[nia-e]

Don't see it... all the raw C bindings exported can be found here: https://docs.rs/lvgl-sys/latest/lvgl_sys/ Search for lv_table_. However, I don't see something similar either there or in the LVGL docs.

[vortex314]

Looks to be decommissioned the, was referring to this : https://docs.lvgl.io/7.11/widgets/table.html?highlight=lv_table_set_cell_type#_CPPv422lv_table_set_cell_typeP8lv_obj_t8uint16_t8uint16_t7uint8_t

[nia-e]

unsure what I can do about that :c

[vortex314]

Starts to look good. :-D

[nia-e]

Merged #123

[vortex314]

This code

    table.on_event(|mut _table, _event| match _event {
        Event::Clicked => {
            let (r, c) = _table.get_selected_cell().unwrap();
            info!("Table event : {:?} row {} col {} ", _event, r, c);

Returns for all cells 65535 ? Any cell I can click upon.

2023-05-10 18:52:07.576 INFO lv_1::view - Table event : Clicked row 65535 col 65535 

Did I miss something ? 

[nia-e]

uhhh... that's odd. I'll take a look

[nia-e]

Seems like it doesn't see a selection? https://docs.lvgl.io/8.3/widgets/core/table.html?highlight=table#keys I think you're meant to send a key event to make a selection, somehow

[vortex314]

Indeed. You're right.

2023-05-10 19:07:37.679 INFO lv_1::view - Table event : Clicked row 65535 col 65535 
2023-05-10 19:07:38.436 INFO lv_1::view - Table event : Pressed
2023-05-10 19:07:38.436 INFO lv_1::view - Table event : Pressed row 5 col 1 
2023-05-10 19:07:38.436 INFO lv_1::view - Table event : Pressing
2023-05-10 19:07:38.436 INFO lv_1::view - Table event : Pressing row 5 col 1 
2023-05-10 19:07:38.473 INFO lv_1::view - Table event : Pressing
2023-05-10 19:07:38.474 INFO lv_1::view - Table event : Pressing row 5 col 1 
2023-05-10 19:07:38.504 INFO lv_1::view - Table event : ValueChanged
2023-05-10 19:07:38.504 INFO lv_1::view - Table event : ValueChanged row 5 col 1 
2023-05-10 19:07:38.504 INFO lv_1::view - Table event : Released
2023-05-10 19:07:38.504 INFO lv_1::view - Table event : Released row 65535 col 65535 

It's not under the Clicked event. It's under Pressed ,Pressing and Released when you use a mouse button.