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|
use textmode::Textmode as _;
pub struct Display {
screen: vt100::Screen,
current_frame: usize,
total_frames: usize,
done_loading: bool,
paused: bool,
speed: u32,
show_ui: bool,
show_help: bool,
active_search: Option<String>,
}
impl Display {
pub fn new() -> Self {
Self {
screen: vt100::Parser::default().screen().clone(),
current_frame: 0,
total_frames: 0,
done_loading: false,
paused: false,
speed: 16,
show_ui: true,
show_help: false,
active_search: None,
}
}
pub fn screen(&mut self, screen: vt100::Screen) {
self.screen = screen;
}
pub fn current_frame(&mut self, idx: usize) {
self.current_frame = idx;
}
pub fn total_frames(&mut self, n: usize) {
self.total_frames = n;
}
pub fn done_loading(&mut self) {
self.done_loading = true;
}
pub fn paused(&mut self, paused: bool) {
self.paused = paused;
}
pub fn speed(&mut self, speed: u32) {
self.speed = speed;
}
pub fn toggle_ui(&mut self) {
self.show_ui = !self.show_ui;
}
pub fn toggle_help(&mut self) {
self.show_help = !self.show_help;
}
pub fn active_search(&mut self, s: String) {
self.active_search = Some(s);
}
pub fn clear_search(&mut self) {
self.active_search = None;
}
pub async fn render(
&self,
output: &mut textmode::Output,
) -> anyhow::Result<()> {
self.render_screen(output);
let pos = output.screen().cursor_position();
if self.paused && self.show_ui {
self.render_frame_count(output);
self.render_speed(output);
self.render_pause_symbol(output);
if self.show_help {
self.render_help(output);
}
}
self.render_search(output);
output.reset_attributes();
output.move_to(pos.0, pos.1);
output.refresh().await?;
Ok(())
}
fn render_screen(&self, output: &mut textmode::Output) {
output.clear();
output.move_to(0, 0);
output.write(&self.screen.contents_formatted());
}
fn render_frame_count(&self, output: &mut textmode::Output) {
output.move_to(0, 0);
output.reset_attributes();
output.set_fgcolor(textmode::color::BLACK);
if self.done_loading {
output.set_bgcolor(textmode::color::CYAN);
} else {
output.set_bgcolor(textmode::color::RED);
}
output.write_str(&format!(
" {}/{} ",
self.current_frame + 1,
self.total_frames
));
}
fn render_speed(&self, output: &mut textmode::Output) {
if self.speed != 16 {
output.move_to(1, 0);
output.reset_attributes();
output.set_fgcolor(textmode::color::BLACK);
output.set_bgcolor(textmode::color::CYAN);
output.write_str(&format!(
"speed: {}x",
16.0 / f64::from(self.speed)
));
}
}
#[allow(clippy::unused_self)]
fn render_pause_symbol(&self, output: &mut textmode::Output) {
let size = output.screen().size();
output.move_to(0, size.1 - 1);
output.reset_attributes();
output.set_fgcolor(textmode::color::BLACK);
output.set_bgcolor(textmode::color::RED);
output.write_str("\u{23f8}");
}
#[allow(clippy::unused_self)]
fn render_help(&self, output: &mut textmode::Output) {
let size = output.screen().size();
output.reset_attributes();
output.set_fgcolor(textmode::color::BLACK);
output.set_bgcolor(textmode::color::CYAN);
output.move_to(size.0 - 16, size.1 - 23);
output.write_str(" keys ");
output.move_to(size.0 - 15, size.1 - 23);
output.write_str(" q: quit ");
output.move_to(size.0 - 14, size.1 - 23);
output.write_str(" space: pause/unpause ");
output.move_to(size.0 - 13, size.1 - 23);
output.write_str(" tab: hide/show ui ");
output.move_to(size.0 - 12, size.1 - 23);
output.write_str(" h: previous frame ");
output.move_to(size.0 - 11, size.1 - 23);
output.write_str(" l: next frame ");
output.move_to(size.0 - 10, size.1 - 23);
output.write_str(" 0: first frame ");
output.move_to(size.0 - 9, size.1 - 23);
output.write_str(" $: last frame ");
output.move_to(size.0 - 8, size.1 - 23);
output.write_str(" +: increase speed ");
output.move_to(size.0 - 7, size.1 - 23);
output.write_str(" -: decrease speed ");
output.move_to(size.0 - 6, size.1 - 23);
output.write_str(" =: normal speed ");
output.move_to(size.0 - 5, size.1 - 23);
output.write_str(" /: search ");
output.move_to(size.0 - 4, size.1 - 23);
output.write_str(" n: next match ");
output.move_to(size.0 - 3, size.1 - 23);
output.write_str(" p: previous match ");
output.move_to(size.0 - 2, size.1 - 23);
output.write_str(" ?: hide/show help ");
}
fn render_search(&self, output: &mut textmode::Output) {
if let Some(search) = &self.active_search {
let size = output.screen().size();
output.reset_attributes();
output.set_fgcolor(textmode::color::BLACK);
output.set_bgcolor(textmode::color::CYAN);
output.move_to(size.0 - 1, 0);
output.write_str("/");
output.write_str(search);
output.write_str(
&" ".repeat(usize::from(size.1) - search.len() - 1),
);
}
}
}
|
