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//! bevy_terminal_display widgets for dialog boxes
use bevy::prelude::*;
use bevy_terminal_display::{crossterm, ratatui::{layout::{Alignment, Constraint, Flex, Layout}, style::Style, text::{Line, Span}, widgets::{Block, Borders, Clear, HighlightSpacing, List, ListItem, ListState, Padding, Paragraph, Wrap}}, widgets::TerminalWidget};
use yarnspinner::runtime::DialogueOption;
use unicode_segmentation::UnicodeSegmentation as _;
use arbitrary_chunks::ArbitraryChunks as _;
/// Interaction tooltip widget marker
// TODO: Move tooltip out of this crate?
#[derive(Component)]
pub struct InteractTooltip;
/// Interaction tooltip widget
pub struct InteractTooltipWidget;
impl TerminalWidget for InteractTooltipWidget {
fn render(
&mut self,
frame: &mut bevy_terminal_display::ratatui::Frame,
rect: bevy_terminal_display::ratatui::prelude::Rect,
) {
let text = Paragraph::new("E")
.block(
Block::new()
.borders(Borders::ALL)
.padding(Padding::horizontal(1)),
)
.alignment(Alignment::Center);
let [area] = Layout::horizontal([Constraint::Length(5)])
.flex(Flex::Center)
.areas(rect);
let [area] = Layout::vertical([Constraint::Length(3)])
.flex(Flex::Center)
.areas(area);
frame.render_widget(Clear, area);
frame.render_widget(text, area);
}
}
/// Dialog box widget marker
#[derive(Component)]
pub struct DialogBox;
/// Dialog box widget
#[derive(Default)]
pub struct DialogBoxWidget {
/// Name of speaking character
pub character: Option<String>,
/// Chunks of text and corresponding styles representing the currently spoken line
pub text: Vec<(String, Style)>,
}
impl TerminalWidget for DialogBoxWidget {
fn render(
&mut self,
frame: &mut bevy_terminal_display::ratatui::Frame,
rect: bevy_terminal_display::ratatui::prelude::Rect,
) {
let text = Paragraph::new(bevy_terminal_display::ratatui::text::Line::from(
self.text
.iter()
.map(|(text, style)| Span::styled(text, *style))
.collect::<Vec<_>>(),
))
.wrap(Wrap { trim: true })
.block({
let mut block = Block::new()
.borders(Borders::ALL)
.padding(Padding::horizontal(1));
if let Some(character) = &self.character {
block = block.title(character.clone());
}
block
});
let [area] = Layout::horizontal([Constraint::Max(100)])
.flex(Flex::Center)
.areas(rect);
let [area] = Layout::vertical([Constraint::Max(10)])
.flex(Flex::End)
.areas(area);
frame.render_widget(Clear, area);
frame.render_widget(text, area);
}
}
/// Option selection box widget marker
#[derive(Component)]
pub struct OptionsBox;
/// Option selection box widget
#[derive(Default)]
pub struct OptionsBoxWidget {
/// State of ratatui list widget
pub state: ListState,
/// Available dialog options
pub options: Vec<(DialogueOption, Vec<(String, Style)>)>,
}
impl TerminalWidget for OptionsBoxWidget {
fn render(
&mut self,
frame: &mut bevy_terminal_display::ratatui::Frame,
rect: bevy_terminal_display::ratatui::prelude::Rect,
) {
let terminal_size = crossterm::terminal::size().unwrap();
let box_size: u16 = if terminal_size.0 > 40 { 20 } else { 10 };
let items = self
.options
.iter()
.map(|option| {
let option_spans = option
.1
.iter()
.map(|(text, style)| Span::styled(text, *style))
.collect::<Vec<_>>();
let string_chunks = textwrap::wrap(
&Line::from(option_spans.clone()).to_string(),
textwrap::Options::new(box_size as usize),
)
.into_iter()
.map(|chunk| chunk.graphemes(true).count())
.collect::<Vec<_>>();
let line = Line::from(option_spans);
let graphemes = line.styled_graphemes(Style::default()).collect::<Vec<_>>();
let mut final_string_chunks = vec![];
let mut i = 0;
for string_chunk in string_chunks {
final_string_chunks.push(string_chunk);
i += string_chunk;
if let Some(grapheme) = graphemes.get(i) {
if grapheme.symbol == " " {
final_string_chunks.push(1);
i += 1;
}
}
}
let mut chunked_graphemes = graphemes
.arbitrary_chunks(&final_string_chunks)
.collect::<Vec<_>>();
chunked_graphemes.retain(|chunk| !(chunk.len() == 1 && chunk[0].symbol == " "));
let line = chunked_graphemes
.into_iter()
.map(|chunk| {
Line::from(
chunk
.iter()
.map(|grapheme| {
Span::styled(grapheme.symbol.to_string(), grapheme.style)
})
.collect::<Vec<_>>(),
)
})
.collect::<Vec<_>>();
ListItem::new(line)
})
.collect::<Vec<_>>();
let height = items.iter().fold(0, |acc, item| acc + item.height());
let outer_block = Block::bordered().padding(Padding::horizontal(1));
let list = List::new(items)
.block(outer_block)
.highlight_symbol("-> ")
.highlight_spacing(HighlightSpacing::Always);
let [area] = Layout::horizontal([Constraint::Length(box_size + 7)])
.flex(Flex::Center)
.areas(rect);
let [area] = Layout::vertical([Constraint::Length(height as u16 + 2)])
.flex(Flex::Center)
.areas(area);
frame.render_widget(Clear, area);
frame.render_stateful_widget(list, area, &mut self.state);
}
}
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