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use std::cmp::max;
use tui::{
backend::Backend,
layout::{Alignment, Rect},
terminal::Frame,
widgets::{Block, Borders, Paragraph},
};
use crate::{
app::{App, AppHelpCategory},
canvas::Painter,
};
const HELP_BASE: &str = " Help ── 1: General ─── 2: Processes ─── 3: Search ─── Esc to close ";
pub trait HelpDialog {
fn draw_help_dialog<B: Backend>(
&self, f: &mut Frame<'_, B>, app_state: &mut App, draw_loc: Rect,
);
}
impl HelpDialog for Painter {
fn draw_help_dialog<B: Backend>(
&self, f: &mut Frame<'_, B>, app_state: &mut App, draw_loc: Rect,
) {
let repeat_num = max(
0,
draw_loc.width as i32 - HELP_BASE.chars().count() as i32 - 2,
);
let help_title = format!(
" Help ─{}─ 1: General ─── 2: Processes ─── 3: Search ─── Esc to close ",
"─".repeat(repeat_num as usize)
);
f.render_widget(
Paragraph::new(
match app_state.help_dialog_state.current_category {
AppHelpCategory::General => &self.styled_general_help_text,
AppHelpCategory::Process => &self.styled_process_help_text,
AppHelpCategory::Search => &self.styled_search_help_text,
}
.iter(),
)
.block(
Block::default()
.title(&help_title)
.title_style(self.colours.border_style)
.style(self.colours.border_style)
.borders(Borders::ALL)
.border_style(self.colours.border_style),
)
.style(self.colours.text_style)
.alignment(Alignment::Left)
.wrap(true),
draw_loc,
);
}
}
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