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use std::{borrow::Cow, num::NonZeroU16, time::Instant};
use concat_string::concat_string;
use tui::{style::Style, text::Text, widgets::Row};
use crate::{
app::AppConfigFields,
args::CpuDefault,
canvas::{
components::data_table::{
Column, ColumnHeader, DataTable, DataTableColumn, DataTableProps, DataTableStyling,
DataToCell,
},
styling::CanvasStyling,
Painter,
},
data_collection::cpu::CpuDataType,
data_conversion::CpuWidgetData,
utils::general::truncate_to_text,
};
#[derive(Default)]
pub struct CpuWidgetStyling {
pub all: Style,
pub avg: Style,
pub entries: Vec<Style>,
}
impl CpuWidgetStyling {
fn from_colours(colours: &CanvasStyling) -> Self {
let entries = if colours.cpu_colour_styles.is_empty() {
vec![Style::default()]
} else {
colours.cpu_colour_styles.clone()
};
Self {
all: colours.all_colour_style,
avg: colours.avg_colour_style,
entries,
}
}
}
pub enum CpuWidgetColumn {
CPU,
Use,
}
impl ColumnHeader for CpuWidgetColumn {
fn text(&self) -> Cow<'static, str> {
match self {
CpuWidgetColumn::CPU => "CPU".into(),
CpuWidgetColumn::Use => "Use".into(),
}
}
}
pub enum CpuWidgetTableData {
All,
Entry {
data_type: CpuDataType,
last_entry: f64,
},
}
impl CpuWidgetTableData {
pub fn from_cpu_widget_data(data: &CpuWidgetData) -> CpuWidgetTableData {
match data {
CpuWidgetData::All => CpuWidgetTableData::All,
CpuWidgetData::Entry {
data_type,
data: _,
last_entry,
} => CpuWidgetTableData::Entry {
data_type: *data_type,
last_entry: *last_entry,
},
}
}
}
impl DataToCell<CpuWidgetColumn> for CpuWidgetTableData {
fn to_cell(&self, column: &CpuWidgetColumn, calculated_width: NonZeroU16) -> Option<Text<'_>> {
const CPU_TRUNCATE_BREAKPOINT: u16 = 5;
let calculated_width = calculated_width.get();
// This is a bit of a hack, but apparently we can avoid having to do any fancy checks
// of showing the "All" on a specific column if the other is hidden by just always
// showing it on the CPU (first) column - if there isn't room for it, it will just collapse
// down.
//
// This is the same for the use percentages - we just *always* show them, and *always* hide the CPU column if
// it is too small.
match &self {
CpuWidgetTableData::All => match column {
CpuWidgetColumn::CPU => Some("All".into()),
CpuWidgetColumn::Use => None,
},
CpuWidgetTableData::Entry {
data_type,
last_entry,
} => {
if calculated_width == 0 {
None
} else {
match column {
CpuWidgetColumn::CPU => match data_type {
CpuDataType::Avg => Some(truncate_to_text("AVG", calculated_width)),
CpuDataType::Cpu(index) => {
let index_str = index.to_string();
let text = if calculated_width < CPU_TRUNCATE_BREAKPOINT {
truncate_to_text(&index_str, calculated_width)
} else {
truncate_to_text(
&concat_string!("CPU", index_str),
calculated_width,
)
};
Some(text)
}
},
CpuWidgetColumn::Use => Some(truncate_to_text(
&format!("{:.0}%", last_entry.round()),
calculated_width,
)),
}
}
}
}
}
#[inline(always)]
fn style_row<'a>(&self, row: Row<'a>, painter: &Painter) -> Row<'a> {
let style = match self {
CpuWidgetTableData::All => painter.colours.all_colour_style,
CpuWidgetTableData::Entry {
data_type,
last_entry: _,
} => match data_type {
CpuDataType::Avg => painter.colours.avg_colour_style,
CpuDataType::Cpu(index) => {
painter.colours.cpu_colour_styles
[index % painter.colours.cpu_colour_styles.len()]
}
},
};
row.style(style)
}
fn column_widths<C: DataTableColumn<CpuWidgetColumn>>(
_data: &[Self], _columns: &[C],
) -> Vec<u16>
where
Self: Sized,
{
vec![1, 3]
}
}
pub struct CpuWidgetState {
pub current_display_time: u64,
pub is_legend_hidden: bool,
pub show_avg: bool,
pub autohide_timer: Option<Instant>,
pub table: DataTable<CpuWidgetTableData, CpuWidgetColumn>,
pub styling: CpuWidgetStyling,
}
impl CpuWidgetState {
pub fn new(
config: &AppConfigFields, default_selection: CpuDefault, current_display_time: u64,
autohide_timer: Option<Instant>, colours: &CanvasStyling,
) -> Self {
const COLUMNS: [Column<CpuWidgetColumn>; 2] = [
Column::soft(CpuWidgetColumn::CPU, Some(0.5)),
Column::soft(CpuWidgetColumn::Use, Some(0.5)),
];
let props = DataTableProps {
title: None,
table_gap: config.table_gap,
left_to_right: false,
is_basic: false,
show_table_scroll_position: false, // TODO: Should this be possible?
show_current_entry_when_unfocused: true,
};
let styling = DataTableStyling::from_colours(colours);
let mut table = DataTable::new(COLUMNS, props, styling);
match default_selection {
CpuDefault::All => {}
CpuDefault::Average if !config.show_average_cpu => {}
CpuDefault::Average => {
table = table.first_draw_index(1);
}
}
CpuWidgetState {
current_display_time,
is_legend_hidden: false,
show_avg: config.show_average_cpu,
autohide_timer,
table,
styling: CpuWidgetStyling::from_colours(colours),
}
}
pub fn update_table(&mut self, data: &[CpuWidgetData]) {
self.table.set_data(
data.iter()
.map(CpuWidgetTableData::from_cpu_widget_data)
.collect(),
);
}
}
|
