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egui_extras: make number of rows in table demo configurable

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This commit is contained in:
Wayne Warren 2022-04-03 10:59:10 -06:00
parent e81a92d32d
commit ab4930fde7
2 changed files with 26 additions and 10 deletions
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34
egui_demo_lib/src/apps/demo/table_demo.rs
View file

@ -5,8 +5,9 @@ use egui_extras::{Size, StripBuilder, TableBuilder, TableRow, TableRowBuilder};
#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
#[derive(Default)]
pub struct TableDemo {
virtual_scroll: bool,
heterogeneous_rows: bool,
resizable: bool,
num_rows: usize,
}
impl super::Demo for TableDemo {
@ -28,14 +29,29 @@ impl super::Demo for TableDemo {
impl super::View for TableDemo {
fn ui(&mut self, ui: &mut egui::Ui) {
ui.checkbox(&mut self.virtual_scroll, "Virtual scroll");
ui.checkbox(&mut self.resizable, "Resizable columns");
// Leave room for the source code link after the table demo:
StripBuilder::new(ui)
.size(Size::exact(50.0)) // for the settings
.size(Size::remainder()) // for the table
.size(Size::exact(10.0)) // for the source code link
.vertical(|mut strip| {
strip.cell(|ui| {
StripBuilder::new(ui)
.size(Size::exact(150.0))
.size(Size::remainder())
.horizontal(|mut strip| {
strip.cell(|ui| {
ui.checkbox(&mut self.heterogeneous_rows, "Heterogeneous rows");
ui.checkbox(&mut self.resizable, "Resizable columns");
});
strip.cell(|ui| {
ui.add(
egui::Slider::new(&mut self.num_rows, 0..=300_000)
.text("Num rows"),
);
});
});
});
strip.cell(|ui| {
self.table_ui(ui);
});
@ -76,8 +92,8 @@ impl TableDemo {
});
})
.body(|body| {
if self.virtual_scroll {
body.rows(text_height, 100_000, |row_index, mut row| {
if !self.heterogeneous_rows {
body.rows(text_height, self.num_rows, |row_index, mut row| {
row.col(|ui| {
ui.label(row_index.to_string());
});
@ -92,9 +108,9 @@ impl TableDemo {
});
} else {
let row_builder = DemoRowBuilder {
row_count: 100000,
row_count: self.num_rows,
};
body.heterogenous_rows(row_builder);
body.heterogeneous_rows(row_builder);
}
});
}
@ -125,7 +141,7 @@ impl Iterator for DemoRows {
impl TableRowBuilder for DemoRowBuilder {
fn row_heights(&self, _: &Vec<f32>) -> Box<dyn Iterator<Item = f32>> {
Box::new(DemoRows{
Box::new(DemoRows {
row_count: self.row_count,
current_row: 0,
})

2
egui_extras/src/table.rs
View file

@ -357,7 +357,7 @@ pub trait TableRowBuilder {
}
impl<'a> TableBody<'a> {
pub fn heterogenous_rows(mut self, builder: impl TableRowBuilder) {
pub fn heterogeneous_rows(mut self, builder: impl TableRowBuilder) {
let mut heights = builder.row_heights(&self.widths);
let max_height = self.end_y - self.start_y;