127 lines
4.4 KiB
Rust
127 lines
4.4 KiB
Rust
// This file is part of Deja-vu.
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//
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// Deja-vu is free software: you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Deja-vu is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Deja-vu. If not, see <https://www.gnu.org/licenses/>.
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//
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use crate::app::App;
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use ratatui::{
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layout::{Constraint, Direction, Layout, Rect},
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style::{Color, Style, Stylize},
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text::{Line, Span},
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widgets::{Block, Borders, Clear, HighlightSpacing, List, ListItem, Padding, Paragraph, Wrap},
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Frame,
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};
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/// Renders the user interface widgets.
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pub fn render(app: &mut App, frame: &mut Frame) {
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let chunks = Layout::default()
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.direction(Direction::Vertical)
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.constraints([
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Constraint::Length(3),
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Constraint::Min(1),
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Constraint::Length(3),
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])
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.split(frame.size());
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// Title Block
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let title_text = Span::styled("Deja-vu: PE Menu", Style::default().fg(Color::LightCyan));
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let title = Paragraph::new(Line::from(title_text).centered())
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.block(Block::default().borders(Borders::ALL));
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frame.render_widget(title, chunks[0]);
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// Main Block
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let main_chunk = centered_rect(65, 90, chunks[1]);
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render_main_pane(frame, app, main_chunk);
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// Bottom Block
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let footer_text = Span::styled(
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"(Enter) to select / (p) to poweroff / (r) to restart / (t) for terminal",
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Style::default().fg(Color::DarkGray),
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);
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let footer = Paragraph::new(Line::from(footer_text).centered())
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.block(Block::default().borders(Borders::ALL));
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frame.render_widget(footer, chunks[2]);
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// Popup blocks
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if app.popup.is_some() {
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render_popup_pane(frame, app);
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}
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}
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fn centered_rect(percent_x: u16, percent_y: u16, r: Rect) -> Rect {
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// Cut the given rectangle into three vertical pieces
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let popup_layout = Layout::default()
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.direction(Direction::Vertical)
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.constraints([
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Constraint::Percentage((100 - percent_y) / 2),
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Constraint::Percentage(percent_y),
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Constraint::Percentage((100 - percent_y) / 2),
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])
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.split(r);
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// Then cut the middle vertical piece into three width-wise pieces
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Layout::default()
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.direction(Direction::Horizontal)
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.constraints([
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Constraint::Percentage((100 - percent_x) / 2),
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Constraint::Percentage(percent_x),
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Constraint::Percentage((100 - percent_x) / 2),
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])
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.split(popup_layout[1])[1] // Return the middle chunk
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}
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fn render_main_pane(frame: &mut Frame, app: &mut App, chunk: Rect) {
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let mut list_items = Vec::<ListItem>::new();
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for entry in &app.main_menu.items {
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let text = if entry.separator {
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if entry.name.is_empty() {
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String::from("....................")
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} else {
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entry.name.clone()
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}
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} else {
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entry.name.clone()
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};
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list_items.push(ListItem::new(format!(" {text}\n\n\n")));
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}
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let list = List::new(list_items)
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.block(
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Block::default()
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.borders(Borders::ALL)
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.padding(Padding::new(20, 20, 5, 5)),
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)
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.highlight_spacing(HighlightSpacing::Always)
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.highlight_style(Style::new().green().bold())
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.highlight_symbol(" --> ")
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.repeat_highlight_symbol(false);
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frame.render_stateful_widget(list, chunk, &mut app.main_menu.state);
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}
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fn render_popup_pane(frame: &mut Frame, app: &mut App) {
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let popup_block = Block::default()
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.borders(Borders::ALL)
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.style(Style::default().red().bold());
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if let Some(popup) = &app.popup {
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let scan_paragraph = Paragraph::new(vec![
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Line::from(Span::raw(&popup.title)),
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Line::default(),
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Line::from(Span::raw(&popup.body)),
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])
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.block(popup_block)
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.centered()
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.wrap(Wrap { trim: false });
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let area = centered_rect(60, 25, frame.size());
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frame.render_widget(Clear, area);
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frame.render_widget(scan_paragraph, area);
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}
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}
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