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|
use crate::{
app::App,
canvas::{drawing_utils::interpolate_points, Painter},
constants::*,
};
use tui::{
backend::Backend,
layout::{Constraint, Rect},
symbols::Marker,
terminal::Frame,
text::Span,
text::Spans,
widgets::{Axis, Block, Borders, Chart, Dataset},
};
use unicode_segmentation::UnicodeSegmentation;
pub trait MemGraphWidget {
fn draw_memory_graph<B: Backend>(
&self, f: &mut Frame<'_, B>, app_state: &mut App, draw_loc: Rect, widget_id: u64,
);
}
impl MemGraphWidget for Painter {
fn draw_memory_graph<B: Backend>(
&self, f: &mut Frame<'_, B>, app_state: &mut App, draw_loc: Rect, widget_id: u64,
) {
if let Some(mem_widget_state) = app_state.mem_state.widget_states.get_mut(&widget_id) {
let mem_data: &mut [(f64, f64)] = &mut app_state.canvas_data.mem_data;
let swap_data: &mut [(f64, f64)] = &mut app_state.canvas_data.swap_data;
let time_start = -(mem_widget_state.current_display_time as f64);
let display_time_labels = vec![
Span::styled(
format!("{}s", mem_widget_state.current_display_time / 1000),
self.colours.graph_style,
),
Span::styled("0s".to_string(), self.colours.graph_style),
];
let y_axis_label = vec![
Span::styled(" 0%", self.colours.graph_style),
Span::styled("100%", self.colours.graph_style),
];
let x_axis = if app_state.app_config_fields.hide_time
|| (app_state.app_config_fields.autohide_time
&& mem_widget_state.autohide_timer.is_none())
{
Axis::default().bounds([time_start, 0.0])
} else if let Some(time) = mem_widget_state.autohide_timer {
if std::time::Instant::now().duration_since(time).as_millis()
< AUTOHIDE_TIMEOUT_MILLISECONDS as u128
{
Axis::default()
.bounds([time_start, 0.0])
.style(self.colours.graph_style)
.labels(display_time_labels)
} else {
mem_widget_state.autohide_timer = None;
Axis::default().bounds([time_start, 0.0])
}
} else if draw_loc.height < TIME_LABEL_HEIGHT_LIMIT {
Axis::default().bounds([time_start, 0.0])
} else {
Axis::default()
.bounds([time_start, 0.0])
.style(self.colours.graph_style)
.labels(display_time_labels)
};
let y_axis = Axis::default()
.style(self.colours.graph_style)
.bounds([0.0, 100.5])
.labels(y_axis_label);
// Interpolate values to avoid ugly gaps
let interpolated_mem_point = if let Some(end_pos) = mem_data
.iter()
.position(|(time, _data)| *time >= time_start)
{
if end_pos > 1 {
let start_pos = end_pos - 1;
let outside_point = mem_data.get(start_pos);
let inside_point = mem_data.get(end_pos);
if let (Some(outside_point), Some(inside_point)) = (outside_point, inside_point)
{
let old = *outside_point;
let new_point = (
time_start,
interpolate_points(outside_point, inside_point, time_start),
);
if let Some(to_replace) = mem_data.get_mut(start_pos) {
*to_replace = new_point;
Some((start_pos, old))
} else {
None // Failed to get mutable reference.
}
} else {
None // Point somehow doesn't exist in our data
}
} else {
None // Point is already "leftmost", no need to interpolate.
}
} else {
None // There is no point.
};
let interpolated_swap_point = if let Some(end_pos) = swap_data
.iter()
.position(|(time, _data)| *time >= time_start)
{
if end_pos > 1 {
let start_pos = end_pos - 1;
let outside_point = swap_data.get(start_pos);
let inside_point = swap_data.get(end_pos);
if let (Some(outside_point), Some(inside_point)) = (outside_point, inside_point)
{
let old = *outside_point;
let new_point = (
time_start,
interpolate_points(outside_point, inside_point, time_start),
);
if let Some(to_replace) = swap_data.get_mut(start_pos) {
*to_replace = new_point;
Some((start_pos, old))
} else {
None // Failed to get mutable reference.
}
} else {
None // Point somehow doesn't exist in our data
}
} else {
None // Point is already "leftmost", no need to interpolate.
}
} else {
None // There is no point.
};
let mut mem_canvas_vec: Vec<Dataset<'_>> = vec![];
if let Some((label_percent, label_frac)) = &app_state.canvas_data.mem_labels {
let mem_label = format!("RAM:{}{}", label_percent, label_frac);
mem_canvas_vec.push(
Dataset::default()
.name(mem_label)
.marker(if app_state.app_config_fields.use_dot {
Marker::Dot
} else {
Marker::Braille
})
.style(self.colours.ram_style)
.data(&mem_data)
.graph_type(tui::widgets::GraphType::Line),
);
}
if let Some((label_percent, label_frac)) = &app_state.canvas_data.swap_labels {
let swap_label = format!("SWP:{}{}", label_percent, label_frac);
mem_canvas_vec.push(
Dataset::default()
.name(swap_label)
.marker(if app_state.app_config_fields.use_dot {
Marker::Dot
} else {
Marker::Braille
})
.style(self.colours.swap_style)
.data(&swap_data)
.graph_type(tui::widgets::GraphType::Line),
);
}
let is_on_widget = widget_id == app_state.current_widget.widget_id;
let border_style = if is_on_widget {
self.colours.highlighted_border_style
} else {
self.colours.border_style
};
let title = if app_state.is_expanded {
const TITLE_BASE: &str = " Memory ── Esc to go back ";
Spans::from(vec![
Span::styled(" Memory ", self.colours.widget_title_style),
Span::styled(
format!(
"─{}─ Esc to go back ",
"─".repeat(usize::from(draw_loc.width).saturating_sub(
UnicodeSegmentation::graphemes(TITLE_BASE, true).count() + 2
))
),
border_style,
),
])
} else {
Spans::from(Span::styled(
" Memory ".to_string(),
self.colours.widget_title_style,
))
};
f.render_widget(
Chart::new(mem_canvas_vec)
.block(
Block::default()
.title(title)
.borders(Borders::ALL)
.border_style(if app_state.current_widget.widget_id == widget_id {
self.colours.highlighted_border_style
} else {
self.colours.border_style
}),
)
.x_axis(x_axis)
.y_axis(y_axis)
.hidden_legend_constraints((Constraint::Ratio(3, 4), Constraint::Ratio(3, 4))),
draw_loc,
);
// Now if you're done, reset any interpolated points!
if let Some((index, old_value)) = interpolated_mem_point {
|
