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|
use once_cell::sync::Lazy;
use tui::{
backend::Backend,
layout::{Constraint, Direction, Layout, Rect},
terminal::Frame,
text::Span,
text::Spans,
widgets::{Block, Borders, Row, Table},
};
use crate::{
app,
canvas::{
drawing_utils::{get_column_widths, get_start_position},
Painter,
},
constants::*,
};
use std::borrow::Cow;
use unicode_segmentation::UnicodeSegmentation;
const TEMP_HEADERS: [&str; 2] = ["Sensor", "Temp"];
static TEMP_HEADERS_LENS: Lazy<Vec<u16>> = Lazy::new(|| {
TEMP_HEADERS
.iter()
.map(|entry| entry.len() as u16)
.collect::<Vec<_>>()
});
pub trait TempTableWidget {
fn draw_temp_table<B: Backend>(
&self, f: &mut Frame<'_, B>, app_state: &mut app::App, draw_loc: Rect, draw_border: bool,
widget_id: u64,
);
}
impl TempTableWidget for Painter {
fn draw_temp_table<B: Backend>(
&self, f: &mut Frame<'_, B>, app_state: &mut app::App, draw_loc: Rect, draw_border: bool,
widget_id: u64,
) {
let recalculate_column_widths = app_state.should_get_widget_bounds();
if let Some(temp_widget_state) = app_state.temp_state.widget_states.get_mut(&widget_id) {
let table_gap = if draw_loc.height < TABLE_GAP_HEIGHT_LIMIT {
0
} else {
app_state.app_config_fields.table_gap
};
let start_position = get_start_position(
usize::from(
(draw_loc.height + (1 - table_gap)).saturating_sub(self.table_height_offset),
),
&temp_widget_state.scroll_state.scroll_direction,
&mut temp_widget_state.scroll_state.previous_scroll_position,
temp_widget_state.scroll_state.current_scroll_position,
app_state.is_force_redraw,
);
let is_on_widget = widget_id == app_state.current_widget.widget_id;
let temp_table_state = &mut temp_widget_state.scroll_state.table_state;
temp_table_state.select(Some(
temp_widget_state
.scroll_state
.current_scroll_position
.saturating_sub(start_position),
));
let sliced_vec = &app_state.canvas_data.temp_sensor_data[start_position..];
// Calculate widths
let hard_widths = [None, None];
if recalculate_column_widths {
temp_widget_state.table_width_state.desired_column_widths = {
let mut column_widths = TEMP_HEADERS_LENS.clone();
for row in sliced_vec {
for (col, entry) in row.iter().enumerate() {
if entry.len() as u16 > column_widths[col] {
column_widths[col] = entry.len() as u16;
}
}
}
column_widths
};
temp_widget_state.table_width_state.calculated_column_widths = get_column_widths(
draw_loc.width,
&hard_widths,
&(TEMP_HEADERS_LENS
.iter()
.map(|width| Some(*width))
.collect::<Vec<_>>()),
&[Some(0.80), Some(-1.0)],
&temp_widget_state
.table_width_state
.desired_column_widths
.iter()
.map(|width| Some(*width))
.collect::<Vec<_>>(),
false,
);
}
let dcw = &temp_widget_state.table_width_state.desired_column_widths;
let ccw = &temp_widget_state.table_width_state.calculated_column_widths;
let temperature_rows =
sliced_vec.iter().map(|temp_row| {
let truncated_data = temp_row.iter().zip(&hard_widths).enumerate().map(
|(itx, (entry, width))| {
if width.is_none() {
if let (Some(desired_col_width), Some(calculated_col_width)) =
(dcw.get(itx), ccw.get(itx))
{
if *desired_col_width > *calculated_col_width
&& *calculated_col_width > 0
{
let graphemes =
UnicodeSegmentation::graphemes(entry.as_str(), true)
.collect::<Vec<&str>>();
if graphemes.len() > *calculated_col_width as usize
&& *calculated_col_width > 1
{
// Truncate with ellipsis
let first_n = graphemes
[..(*calculated_col_width as usize - 1)]
.concat();
Cow::Owned(format!("{}…", first_n))
} else {
Cow::Borrowed(entry)
}
} else {
Cow::Borrowed(entry)
}
} else {
Cow::Borrowed(entry)
}
} else {
Cow::Borrowed(entry)
}
},
);
Row::Data(truncated_data)
});
let (border_style, highlight_style) = if is_on_widget {
(
self.colours.highlighted_border_style,
self.colours.currently_selected_text_style,
)
} else {
(self.colours.border_style, self.colours.text_style)
};
let title_base = if app_state.app_config_fields.show_table_scroll_position {
let title_string = format!(
" Temperatures ({} of {}) ",
temp_widget_state
.scroll_state
.current_scroll_position
.saturating_add(1),
app_state.canvas_data.temp_sensor_data.len()
);
if title_string.len() <= draw_loc.width as usize {
title_string
} else {
" Temperatures ".to_string()
}
} else {
" Temperatures ".to_string()
};
let title = if app_state.is_expanded {
const ESCAPE_ENDING: &str = "── Esc to go back ";
let (chosen_title_base, expanded_title_base) = {
let temp_title_base = format!("{}{}", title_base, ESCAPE_ENDING);
if temp_title_base.len() > draw_loc.width as usize {
(
" Temperatures ".to_string(),
format!("{}{}", " Temperatures ".to_string(), ESCAPE_ENDING),
)
} else {
(title_base, temp_title_base)
}
};
Spans::from(vec![
Span::styled(chosen_title_base, self.colours.widget_title_style),
Span::styled(
format!(
"─{}─ Esc to go back ",
"─".repeat(
usize::from(draw_loc.width).saturating_sub(
UnicodeSegmentation::graphemes(
expanded_title_base.as_str(),
true
)
.count()
+ 2
)
)
),
border_style,
),
])
} else {
Spans::from(Span::styled(title_base, self.colours.widget_title_style))
};
let temp_block = if draw_border {
Block::default()
.title(title)
.borders(Borders::ALL)
.border_style(border_style)
} else if is_on_widget {
Block::default()
.borders(*SIDE_BORDERS)
.border_style(self.colours.highlighted_border_style)
} else {
Block::default().borders(Borders::NONE)
};
let margined_draw_loc = Layout::default()
.constraints([Constraint::Percentage(100)])
.horizontal_margin(if is_on_widget || draw_border { 0 } else { 1 })
.direction(Direction::Horizontal)
.split(draw_loc)[0];
// Draw
f.render_stateful_widget(
Table::new(TEMP_HEADERS.iter(), temperature_rows)
.block(temp_block)
.header_style(self.colours.table_header_style)
.highlight_style(highlight_style)
.style(self.colours.text_style)
.widths(
&(te
|
