mirror of
https://github.com/ClementTsang/bottom
synced 2024-11-23 04:33:10 +00:00
c6f5d5488a
Enables lib docs, primarily intended for dev use. Also change some existing documentation based on warnings (mainly broken/bare links).
722 lines
29 KiB
Rust
722 lines
29 KiB
Rust
use itertools::izip;
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use std::str::FromStr;
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use tui::{
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backend::Backend,
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layout::{Constraint, Direction, Layout, Rect},
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text::{Span, Spans},
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widgets::Paragraph,
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Frame, Terminal,
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};
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use canvas_colours::*;
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use crate::{
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app::{
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self,
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layout_manager::{BottomColRow, BottomLayout, BottomWidgetType},
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App,
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},
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constants::*,
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options::Config,
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utils::error,
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utils::error::BottomError,
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};
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mod canvas_colours;
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mod dialogs;
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mod drawing_utils;
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mod widgets;
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#[derive(Debug)]
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pub enum ColourScheme {
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Default,
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DefaultLight,
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Gruvbox,
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GruvboxLight,
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Nord,
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NordLight,
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Custom,
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}
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impl FromStr for ColourScheme {
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type Err = BottomError;
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fn from_str(s: &str) -> error::Result<Self> {
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let lower_case = s.to_lowercase();
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match lower_case.as_str() {
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"default" => Ok(ColourScheme::Default),
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"default-light" => Ok(ColourScheme::DefaultLight),
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"gruvbox" => Ok(ColourScheme::Gruvbox),
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"gruvbox-light" => Ok(ColourScheme::GruvboxLight),
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"nord" => Ok(ColourScheme::Nord),
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"nord-light" => Ok(ColourScheme::NordLight),
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_ => Err(BottomError::ConfigError(format!(
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"\"{}\" is an invalid built-in color scheme.",
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s
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))),
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}
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}
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}
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/// Handles the canvas' state.
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pub struct Painter {
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pub colours: CanvasColours,
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height: u16,
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width: u16,
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styled_help_text: Vec<Spans<'static>>,
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is_mac_os: bool, // TODO: This feels out of place...
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// TODO: Redo this entire thing.
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row_constraints: Vec<Constraint>,
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col_constraints: Vec<Vec<Constraint>>,
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col_row_constraints: Vec<Vec<Vec<Constraint>>>,
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layout_constraints: Vec<Vec<Vec<Vec<Constraint>>>>,
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derived_widget_draw_locs: Vec<Vec<Vec<Vec<Rect>>>>,
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widget_layout: BottomLayout,
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}
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impl Painter {
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pub fn init(
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widget_layout: BottomLayout, config: &Config, colour_scheme: ColourScheme,
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) -> anyhow::Result<Self> {
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// Now for modularity; we have to also initialize the base layouts!
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// We want to do this ONCE and reuse; after this we can just construct
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// based on the console size.
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let mut row_constraints = Vec::new();
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let mut col_constraints = Vec::new();
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let mut col_row_constraints = Vec::new();
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let mut layout_constraints = Vec::new();
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widget_layout.rows.iter().for_each(|row| {
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if row.canvas_handle_height {
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row_constraints.push(Constraint::Length(0));
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} else {
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row_constraints.push(Constraint::Ratio(
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row.row_height_ratio,
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widget_layout.total_row_height_ratio,
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));
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}
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let mut new_col_constraints = Vec::new();
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let mut new_widget_constraints = Vec::new();
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let mut new_col_row_constraints = Vec::new();
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row.children.iter().for_each(|col| {
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if col.canvas_handle_width {
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new_col_constraints.push(Constraint::Length(0));
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} else {
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new_col_constraints
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.push(Constraint::Ratio(col.col_width_ratio, row.total_col_ratio));
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}
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let mut new_new_col_row_constraints = Vec::new();
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let mut new_new_widget_constraints = Vec::new();
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col.children.iter().for_each(|col_row| {
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if col_row.canvas_handle_height {
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new_new_col_row_constraints.push(Constraint::Length(0));
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} else if col_row.flex_grow {
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new_new_col_row_constraints.push(Constraint::Min(0));
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} else {
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new_new_col_row_constraints.push(Constraint::Ratio(
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col_row.col_row_height_ratio,
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col.total_col_row_ratio,
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));
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}
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let mut new_new_new_widget_constraints = Vec::new();
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col_row.children.iter().for_each(|widget| {
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if widget.canvas_handle_width {
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new_new_new_widget_constraints.push(Constraint::Length(0));
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} else if widget.flex_grow {
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new_new_new_widget_constraints.push(Constraint::Min(0));
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} else {
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new_new_new_widget_constraints.push(Constraint::Ratio(
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widget.width_ratio,
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col_row.total_widget_ratio,
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));
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}
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});
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new_new_widget_constraints.push(new_new_new_widget_constraints);
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});
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new_col_row_constraints.push(new_new_col_row_constraints);
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new_widget_constraints.push(new_new_widget_constraints);
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});
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col_row_constraints.push(new_col_row_constraints);
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layout_constraints.push(new_widget_constraints);
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col_constraints.push(new_col_constraints);
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});
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let mut painter = Painter {
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colours: CanvasColours::default(),
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height: 0,
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width: 0,
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styled_help_text: Vec::default(),
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is_mac_os: cfg!(target_os = "macos"),
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row_constraints,
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col_constraints,
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col_row_constraints,
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layout_constraints,
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widget_layout,
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derived_widget_draw_locs: Vec::default(),
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};
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if let ColourScheme::Custom = colour_scheme {
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painter.generate_config_colours(config)?;
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} else {
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painter.generate_colour_scheme(colour_scheme)?;
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}
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painter.complete_painter_init();
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Ok(painter)
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}
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/// Determines the border style.
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pub fn get_border_style(&self, widget_id: u64, selected_widget_id: u64) -> tui::style::Style {
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let is_on_widget = widget_id == selected_widget_id;
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if is_on_widget {
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self.colours.highlighted_border_style
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} else {
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self.colours.border_style
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}
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}
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fn generate_config_colours(&mut self, config: &Config) -> anyhow::Result<()> {
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if let Some(colours) = &config.colors {
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self.colours.set_colours_from_palette(colours)?;
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}
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Ok(())
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}
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fn generate_colour_scheme(&mut self, colour_scheme: ColourScheme) -> anyhow::Result<()> {
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match colour_scheme {
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ColourScheme::Default => {
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// Don't have to do anything.
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}
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ColourScheme::DefaultLight => {
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self.colours
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.set_colours_from_palette(&*DEFAULT_LIGHT_MODE_COLOUR_PALETTE)?;
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}
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ColourScheme::Gruvbox => {
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self.colours
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.set_colours_from_palette(&*GRUVBOX_COLOUR_PALETTE)?;
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}
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ColourScheme::GruvboxLight => {
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self.colours
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.set_colours_from_palette(&*GRUVBOX_LIGHT_COLOUR_PALETTE)?;
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}
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ColourScheme::Nord => {
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self.colours
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.set_colours_from_palette(&*NORD_COLOUR_PALETTE)?;
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}
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ColourScheme::NordLight => {
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self.colours
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.set_colours_from_palette(&*NORD_LIGHT_COLOUR_PALETTE)?;
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}
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ColourScheme::Custom => {
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// This case should never occur, just do nothing.
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}
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}
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Ok(())
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}
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/// Must be run once before drawing, but after setting colours.
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/// This is to set some remaining styles and text.
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fn complete_painter_init(&mut self) {
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let mut styled_help_spans = Vec::new();
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// Init help text:
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(*HELP_TEXT).iter().enumerate().for_each(|(itx, section)| {
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if itx == 0 {
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styled_help_spans.extend(
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section
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.iter()
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.map(|&text| Span::styled(text, self.colours.text_style))
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.collect::<Vec<_>>(),
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);
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} else {
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// Not required check but it runs only a few times... so whatever ig, prevents me from
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// being dumb and leaving a help text section only one line long.
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if section.len() > 1 {
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styled_help_spans.push(Span::raw(""));
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styled_help_spans
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.push(Span::styled(section[0], self.colours.table_header_style));
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styled_help_spans.extend(
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section[1..]
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.iter()
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.map(|&text| Span::styled(text, self.colours.text_style))
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.collect::<Vec<_>>(),
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);
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}
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}
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});
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self.styled_help_text = styled_help_spans.into_iter().map(Spans::from).collect();
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}
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fn draw_frozen_indicator<B: Backend>(&self, f: &mut Frame<'_, B>, draw_loc: Rect) {
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f.render_widget(
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Paragraph::new(Span::styled(
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"Frozen, press 'f' to unfreeze",
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self.colours.currently_selected_text_style,
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)),
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Layout::default()
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.horizontal_margin(1)
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.constraints([Constraint::Length(1)])
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.split(draw_loc)[0],
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)
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}
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pub fn draw_data<B: Backend>(
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&mut self, terminal: &mut Terminal<B>, app_state: &mut app::App,
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) -> error::Result<()> {
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use BottomWidgetType::*;
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terminal.draw(|f| {
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let (terminal_size, frozen_draw_loc) = if app_state.is_frozen {
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let split_loc = Layout::default()
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.constraints([Constraint::Min(0), Constraint::Length(1)])
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.split(f.size());
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(split_loc[0], Some(split_loc[1]))
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} else {
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(f.size(), None)
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};
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let terminal_height = terminal_size.height;
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let terminal_width = terminal_size.width;
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if (self.height == 0 && self.width == 0)
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|| (self.height != terminal_height || self.width != terminal_width)
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{
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app_state.is_force_redraw = true;
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self.height = terminal_height;
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self.width = terminal_width;
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}
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if app_state.should_get_widget_bounds() {
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// If we're force drawing, reset ALL mouse boundaries.
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for widget in app_state.widget_map.values_mut() {
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widget.top_left_corner = None;
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widget.bottom_right_corner = None;
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}
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// Reset dd_dialog...
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app_state.delete_dialog_state.button_positions = vec![];
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// Reset battery dialog...
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for battery_widget in app_state.battery_state.widget_states.values_mut() {
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battery_widget.tab_click_locs = None;
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}
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}
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if app_state.help_dialog_state.is_showing_help {
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let gen_help_len = GENERAL_HELP_TEXT.len() as u16 + 3;
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let border_len = terminal_height.saturating_sub(gen_help_len) / 2;
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let vertical_dialog_chunk = Layout::default()
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.direction(Direction::Vertical)
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.constraints([
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Constraint::Length(border_len),
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Constraint::Length(gen_help_len),
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Constraint::Length(border_len),
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])
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.split(terminal_size);
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let middle_dialog_chunk = Layout::default()
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.direction(Direction::Horizontal)
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.constraints(if terminal_width < 100 {
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// TODO: [REFACTOR] The point we start changing size at currently hard-coded in.
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[
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Constraint::Percentage(0),
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Constraint::Percentage(100),
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Constraint::Percentage(0),
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]
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} else {
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[
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Constraint::Percentage(20),
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Constraint::Percentage(60),
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Constraint::Percentage(20),
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]
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})
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.split(vertical_dialog_chunk[1]);
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self.draw_help_dialog(f, app_state, middle_dialog_chunk[1]);
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} else if app_state.delete_dialog_state.is_showing_dd {
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// TODO: This needs the paragraph wrap feature from tui-rs to be pushed to complete... but for now it's pretty close!
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// The main problem right now is that I cannot properly calculate the height offset since
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// line-wrapping is NOT the same as taking the width of the text and dividing by width.
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// So, I need the height AFTER wrapping.
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// See: https://github.com/fdehau/tui-rs/pull/349. Land this after this pushes to release.
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let dd_text = self.get_dd_spans(app_state);
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let text_width = if terminal_width < 100 {
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terminal_width * 90 / 100
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} else {
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terminal_width * 50 / 100
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};
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let text_height = if cfg!(target_os = "windows")
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|| !app_state.app_config_fields.is_advanced_kill
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{
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7
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} else {
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22
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};
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// let (text_width, text_height) = if let Some(dd_text) = &dd_text {
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// let width = if current_width < 100 {
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// current_width * 90 / 100
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// } else {
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// let min_possible_width = (current_width * 50 / 100) as usize;
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// let mut width = dd_text.width();
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// // This should theoretically never allow width to be 0... we can be safe and do an extra check though.
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// while width > (current_width as usize) && width / 2 > min_possible_width {
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// width /= 2;
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// }
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// std::cmp::max(width, min_possible_width) as u16
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// };
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// (
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// width,
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// (dd_text.height() + 2 + (dd_text.width() / width as usize)) as u16,
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// )
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// } else {
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// // AFAIK this shouldn't happen, unless something went wrong...
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// (
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// if current_width < 100 {
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// current_width * 90 / 100
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// } else {
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// current_width * 50 / 100
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// },
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// 7,
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// )
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// };
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let vertical_bordering = terminal_height.saturating_sub(text_height) / 2;
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let vertical_dialog_chunk = Layout::default()
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.direction(Direction::Vertical)
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.constraints([
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Constraint::Length(vertical_bordering),
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Constraint::Length(text_height),
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Constraint::Length(vertical_bordering),
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])
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.split(terminal_size);
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let horizontal_bordering = terminal_width.saturating_sub(text_width) / 2;
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let middle_dialog_chunk = Layout::default()
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.direction(Direction::Horizontal)
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.constraints([
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Constraint::Length(horizontal_bordering),
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Constraint::Length(text_width),
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Constraint::Length(horizontal_bordering),
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])
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.split(vertical_dialog_chunk[1]);
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// This is a bit nasty, but it works well... I guess.
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app_state.delete_dialog_state.is_showing_dd =
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self.draw_dd_dialog(f, dd_text, app_state, middle_dialog_chunk[1]);
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} else if app_state.is_expanded {
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if let Some(frozen_draw_loc) = frozen_draw_loc {
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self.draw_frozen_indicator(f, frozen_draw_loc);
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}
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let rect = Layout::default()
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.margin(0)
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.constraints([Constraint::Percentage(100)])
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.split(terminal_size);
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match &app_state.current_widget.widget_type {
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Cpu => self.draw_cpu(f, app_state, rect[0], app_state.current_widget.widget_id),
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CpuLegend => self.draw_cpu(
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f,
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app_state,
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rect[0],
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app_state.current_widget.widget_id - 1,
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),
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Mem | BasicMem => self.draw_memory_graph(
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f,
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app_state,
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rect[0],
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app_state.current_widget.widget_id,
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),
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Disk => self.draw_disk_table(
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f,
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app_state,
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rect[0],
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true,
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app_state.current_widget.widget_id,
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),
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Temp => self.draw_temp_table(
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f,
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app_state,
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rect[0],
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true,
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app_state.current_widget.widget_id,
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),
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Net => self.draw_network_graph(
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f,
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app_state,
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rect[0],
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app_state.current_widget.widget_id,
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false,
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),
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Proc | ProcSearch | ProcSort => {
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let widget_id = app_state.current_widget.widget_id
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- match &app_state.current_widget.widget_type {
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ProcSearch => 1,
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ProcSort => 2,
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_ => 0,
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};
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self.draw_process_widget(f, app_state, rect[0], true, widget_id);
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}
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Battery => self.draw_battery_display(
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f,
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app_state,
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rect[0],
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true,
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app_state.current_widget.widget_id,
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),
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_ => {}
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}
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} else if app_state.app_config_fields.use_basic_mode {
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// Basic mode. This basically removes all graphs but otherwise
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// the same info.
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if let Some(frozen_draw_loc) = frozen_draw_loc {
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self.draw_frozen_indicator(f, frozen_draw_loc);
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}
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let actual_cpu_data_len = app_state.converted_data.cpu_data.len().saturating_sub(1);
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// This fixes #397, apparently if the height is 1, it can't render the CPU bars...
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let cpu_height = {
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let c = (actual_cpu_data_len / 4) as u16
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+ (if actual_cpu_data_len % 4 == 0 { 0 } else { 1 });
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if c <= 1 {
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1
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} else {
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c
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}
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};
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let vertical_chunks = Layout::default()
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.direction(Direction::Vertical)
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.margin(0)
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.constraints([
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Constraint::Length(cpu_height),
|
|
Constraint::Length(2),
|
|
Constraint::Length(2),
|
|
Constraint::Min(5),
|
|
])
|
|
.split(terminal_size);
|
|
|
|
let middle_chunks = Layout::default()
|
|
.direction(Direction::Horizontal)
|
|
.constraints([Constraint::Percentage(50), Constraint::Percentage(50)])
|
|
.split(vertical_chunks[1]);
|
|
|
|
if vertical_chunks[0].width >= 2 {
|
|
self.draw_basic_cpu(f, app_state, vertical_chunks[0], 1);
|
|
}
|
|
if middle_chunks[0].width >= 2 {
|
|
self.draw_basic_memory(f, app_state, middle_chunks[0], 2);
|
|
}
|
|
if middle_chunks[1].width >= 2 {
|
|
self.draw_basic_network(f, app_state, middle_chunks[1], 3);
|
|
}
|
|
|
|
let mut later_widget_id: Option<u64> = None;
|
|
if let Some(basic_table_widget_state) = &app_state.basic_table_widget_state {
|
|
let widget_id = basic_table_widget_state.currently_displayed_widget_id;
|
|
later_widget_id = Some(widget_id);
|
|
if vertical_chunks[3].width >= 2 {
|
|
match basic_table_widget_state.currently_displayed_widget_type {
|
|
Disk => self.draw_disk_table(
|
|
f,
|
|
app_state,
|
|
vertical_chunks[3],
|
|
false,
|
|
widget_id,
|
|
),
|
|
Proc | ProcSort => {
|
|
let wid = widget_id
|
|
- match basic_table_widget_state.currently_displayed_widget_type
|
|
{
|
|
ProcSearch => 1,
|
|
ProcSort => 2,
|
|
_ => 0,
|
|
};
|
|
self.draw_process_widget(
|
|
f,
|
|
app_state,
|
|
vertical_chunks[3],
|
|
false,
|
|
wid,
|
|
);
|
|
}
|
|
Temp => self.draw_temp_table(
|
|
f,
|
|
app_state,
|
|
vertical_chunks[3],
|
|
false,
|
|
widget_id,
|
|
),
|
|
Battery => self.draw_battery_display(
|
|
f,
|
|
app_state,
|
|
vertical_chunks[3],
|
|
false,
|
|
widget_id,
|
|
),
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
|
|
if let Some(widget_id) = later_widget_id {
|
|
self.draw_basic_table_arrows(f, app_state, vertical_chunks[2], widget_id);
|
|
}
|
|
} else {
|
|
// Draws using the passed in (or default) layout.
|
|
if let Some(frozen_draw_loc) = frozen_draw_loc {
|
|
self.draw_frozen_indicator(f, frozen_draw_loc);
|
|
}
|
|
|
|
if self.derived_widget_draw_locs.is_empty() || app_state.is_force_redraw {
|
|
let draw_locs = Layout::default()
|
|
.margin(0)
|
|
.constraints(self.row_constraints.as_slice())
|
|
.direction(Direction::Vertical)
|
|
.split(terminal_size);
|
|
|
|
self.derived_widget_draw_locs = izip!(
|
|
draw_locs,
|
|
&self.col_constraints,
|
|
&self.col_row_constraints,
|
|
&self.layout_constraints,
|
|
&self.widget_layout.rows
|
|
)
|
|
.map(
|
|
|(
|
|
draw_loc,
|
|
col_constraint,
|
|
col_row_constraint,
|
|
row_constraint_vec,
|
|
cols,
|
|
)| {
|
|
izip!(
|
|
Layout::default()
|
|
.constraints(col_constraint.as_slice())
|
|
.direction(Direction::Horizontal)
|
|
.split(draw_loc)
|
|
.into_iter(),
|
|
col_row_constraint,
|
|
row_constraint_vec,
|
|
&cols.children
|
|
)
|
|
.map(|(split_loc, constraint, col_constraint_vec, col_rows)| {
|
|
izip!(
|
|
Layout::default()
|
|
.constraints(constraint.as_slice())
|
|
.direction(Direction::Vertical)
|
|
.split(split_loc)
|
|
.into_iter(),
|
|
col_constraint_vec,
|
|
&col_rows.children
|
|
)
|
|
.map(|(draw_loc, col_row_constraint_vec, widgets)| {
|
|
// Note that col_row_constraint_vec CONTAINS the widget constraints
|
|
let widget_draw_locs = Layout::default()
|
|
.constraints(col_row_constraint_vec.as_slice())
|
|
.direction(Direction::Horizontal)
|
|
.split(draw_loc);
|
|
|
|
// Side effect, draw here.
|
|
self.draw_widgets_with_constraints(
|
|
f,
|
|
app_state,
|
|
widgets,
|
|
&widget_draw_locs,
|
|
);
|
|
|
|
widget_draw_locs
|
|
})
|
|
.collect()
|
|
})
|
|
.collect()
|
|
},
|
|
)
|
|
.collect();
|
|
} else {
|
|
self.widget_layout
|
|
.rows
|
|
.iter()
|
|
.flat_map(|row| &row.children)
|
|
.flat_map(|col| &col.children)
|
|
.zip(self.derived_widget_draw_locs.iter().flatten().flatten())
|
|
.for_each(|(widgets, widget_draw_locs)| {
|
|
self.draw_widgets_with_constraints(
|
|
f,
|
|
app_state,
|
|
widgets,
|
|
widget_draw_locs,
|
|
);
|
|
});
|
|
}
|
|
}
|
|
})?;
|
|
|
|
if let Some(updated_current_widget) = app_state
|
|
.widget_map
|
|
.get(&app_state.current_widget.widget_id)
|
|
{
|
|
app_state.current_widget = updated_current_widget.clone();
|
|
}
|
|
|
|
app_state.is_force_redraw = false;
|
|
app_state.is_determining_widget_boundary = false;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn draw_widgets_with_constraints<B: Backend>(
|
|
&self, f: &mut Frame<'_, B>, app_state: &mut App, widgets: &BottomColRow,
|
|
widget_draw_locs: &[Rect],
|
|
) {
|
|
use BottomWidgetType::*;
|
|
for (widget, widget_draw_loc) in widgets.children.iter().zip(widget_draw_locs) {
|
|
if widget_draw_loc.width >= 2 && widget_draw_loc.height >= 2 {
|
|
match &widget.widget_type {
|
|
Empty => {}
|
|
Cpu => self.draw_cpu(f, app_state, *widget_draw_loc, widget.widget_id),
|
|
Mem => self.draw_memory_graph(f, app_state, *widget_draw_loc, widget.widget_id),
|
|
Net => self.draw_network(f, app_state, *widget_draw_loc, widget.widget_id),
|
|
Temp => {
|
|
self.draw_temp_table(f, app_state, *widget_draw_loc, true, widget.widget_id)
|
|
}
|
|
Disk => {
|
|
self.draw_disk_table(f, app_state, *widget_draw_loc, true, widget.widget_id)
|
|
}
|
|
Proc => self.draw_process_widget(
|
|
f,
|
|
app_state,
|
|
*widget_draw_loc,
|
|
true,
|
|
widget.widget_id,
|
|
),
|
|
Battery => self.draw_battery_display(
|
|
f,
|
|
app_state,
|
|
*widget_draw_loc,
|
|
true,
|
|
widget.widget_id,
|
|
),
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|