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use std::backtrace::BacktraceStatus;
use egui::{Label, Response, Sense, Ui, WidgetText};
use egui_extras::{Column, TableBuilder};
use crate::allocator::{fmt_bytes, AllocationReport};
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
pub(crate) enum AllocationReportVisualizeSorting {
#[default]
None,
Idx,
Name,
Size,
}
#[derive(Debug, Default)]
pub(crate) struct AllocationReportVisualizeSettings {
pub filter: String,
pub sorting: AllocationReportVisualizeSorting,
pub ascending: bool,
}
pub(crate) fn render_allocation_reports_ui(
ui: &mut Ui,
settings: &mut AllocationReportVisualizeSettings,
allocations: impl IntoIterator<Item = AllocationReport>,
) {
ui.horizontal(|ui| {
ui.label("Filter");
ui.text_edit_singleline(&mut settings.filter);
});
let breakdown_filter = settings.filter.to_lowercase();
let mut allocations = allocations
.into_iter()
.enumerate()
.filter(|(_, report)| report.name.to_lowercase().contains(&breakdown_filter))
.collect::<Vec<_>>();
let total_size_under_filter: u64 = allocations.iter().map(|a| a.1.size).sum();
ui.label(format!("Total: {}", fmt_bytes(total_size_under_filter)));
let row_height = ui.text_style_height(&egui::TextStyle::Body);
let table = TableBuilder::new(ui)
.striped(true)
.resizable(true)
.column(Column::exact(30.0))
.column(Column::initial(300.0).at_least(200.0).clip(true))
.column(Column::exact(70.0));
fn header_button(ui: &mut Ui, label: &str) -> Response {
let label = WidgetText::from(label).strong();
let label = Label::new(label).sense(Sense::click());
ui.add(label)
}
let table = table.header(row_height, |mut row| {
row.col(|ui| {
if header_button(ui, "Idx").clicked() {
if settings.sorting == AllocationReportVisualizeSorting::Idx {
settings.ascending = !settings.ascending;
} else {
settings.sorting = AllocationReportVisualizeSorting::Idx;
settings.ascending = false;
}
}
});
row.col(|ui| {
if header_button(ui, "Name").clicked() {
if settings.sorting == AllocationReportVisualizeSorting::Name {
settings.ascending = !settings.ascending;
} else {
settings.sorting = AllocationReportVisualizeSorting::Name;
settings.ascending = false;
}
}
});
row.col(|ui| {
if header_button(ui, "Size").clicked() {
if settings.sorting == AllocationReportVisualizeSorting::Size {
settings.ascending = !settings.ascending;
} else {
settings.sorting = AllocationReportVisualizeSorting::Size;
settings.ascending = false;
}
}
});
});
match (settings.sorting, settings.ascending) {
(AllocationReportVisualizeSorting::None, _) => {}
(AllocationReportVisualizeSorting::Idx, true) => allocations.sort_by_key(|(idx, _)| *idx),
(AllocationReportVisualizeSorting::Idx, false) => {
allocations.sort_by_key(|(idx, _)| std::cmp::Reverse(*idx))
}
(AllocationReportVisualizeSorting::Name, true) => {
allocations.sort_by(|(_, alloc1), (_, alloc2)| alloc1.name.cmp(&alloc2.name))
}
(AllocationReportVisualizeSorting::Name, false) => {
allocations.sort_by(|(_, alloc1), (_, alloc2)| alloc1.name.cmp(&alloc2.name).reverse())
}
(AllocationReportVisualizeSorting::Size, true) => {
allocations.sort_by_key(|(_, alloc)| alloc.size)
}
(AllocationReportVisualizeSorting::Size, false) => {
allocations.sort_by_key(|(_, alloc)| std::cmp::Reverse(alloc.size))
}
}
table.body(|mut body| {
for (idx, alloc) in allocations {
body.row(row_height, |mut row| {
let AllocationReport {
name,
size,
backtrace,
..
} = alloc;
row.col(|ui| {
ui.label(idx.to_string());
});
let resp = row.col(|ui| {
ui.label(name);
});
if backtrace.status() == BacktraceStatus::Captured {
resp.1.on_hover_ui(|ui| {
ui.label(backtrace.to_string());
});
}
row.col(|ui| {
ui.label(fmt_bytes(size));
});
});
}
});
}