use surf_n_term::{ view::{Align, Container, Margins, Text, View, ViewContext, ViewLayoutStore}, Cell, Face, KeyName, Position, Size, Surface, SurfaceMut, SystemTerminal, Terminal, TerminalAction, TerminalCommand, TerminalEvent, TerminalSurfaceExt, }; use tracing_subscriber::{fmt::format::FmtSpan, EnvFilter}; type Error = Box; const CURSOR: &str = r#" { "view_box": [0, 0, 100, 100], "size": [2, 5], "frame": { "margin": [5, 5, 5, 5], "border_radius": [0, 50, 50, 50], "border_width": [3, 3, 3, 3], "border_color": "gruv-aqua-0", "padding": [10, 5, 10, 5], "fill_color": "gruv-aqua-2" }, "path": "M50,89.47Q41.67,89.47 34.85,87.04Q28.03,84.61 23.11,80.16Q18.18,75.72 15.51,69.58Q12.84,63.44 12.84,56.02Q12.84,50.16 14.55,45.02Q12.96,40.19 12.14,35.83Q11.32,31.46 11.32,27.11Q11.32,19.62 13.48,15.07Q15.63,10.53 19.5,10.53Q21.81,10.53 24.74,12.32Q27.67,14.11 30.84,17.26Q34.01,20.41 37,24.48Q40.03,23.6 43.3,23.19Q46.57,22.77 50,22.77Q53.43,22.77 56.7,23.19Q59.97,23.6 63,24.48Q65.99,20.41 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78.91,20.69Q79.63,20.69 79.98,22.39Q80.34,24.08 80.34,26.59Q80.34,29.51 79.86,32.87Q79.39,36.24 78.43,38.72Z" } "#; fn stats_view( term: &SystemTerminal, event: &TerminalEvent, event_count: usize, ) -> Result { let name = "fg=#fbf1c7,bold".parse()?; let term_size = term.size().unwrap_or_default(); let cell_size = term_size.cells_in_pixels(Size::new(1, 1)); let text = Text::new() .push_str("Count ", Some(name)) .push_fmt(&format_args!("{}\n", event_count)) .push_str("Events ", Some(name)) .push_fmt(&format_args!("{:?}\n", event)) .push_str("Received ", Some(name)) .push_fmt(&format_args!("{}\n", term.stats().recv)) .push_str("Send ", Some(name)) .push_fmt(&format_args!("{}\n", term.stats().send)) .push_str("Term size ", Some(name)) .push_fmt(&format_args!( "{}x{} {}x{} ({}x{})\n", term_size.cells.height, term_size.cells.width, term_size.pixels.height, term_size.pixels.height, cell_size.height, cell_size.width )) .take(); Ok(Container::new(text) .with_margins(Margins { right: 2, left: 2, top: 1, bottom: 1, }) .with_face("fg=gruv-fg,bg=gruv-blue-1".parse()?)) } fn main() -> Result<(), Error> { let appender = tracing_appender::rolling::never("/tmp", "surf-n-term-mouse.log"); tracing_subscriber::fmt() .with_span_events(FmtSpan::CLOSE) .with_env_filter(EnvFilter::from_default_env()) .with_writer(appender) .init(); let mut term = SystemTerminal::new()?; // enable mouse term.execute_many(TerminalCommand::mouse_events_set(true, true))?; term.execute_many([ TerminalCommand::altscreen_set(true), TerminalCommand::auto_wrap_set(false), TerminalCommand::visible_cursor_set(false), ])?; // term.duplicate_output("/tmp/mouse-example.txt")?; let q = TerminalEvent::Key("q".parse()?); let ctrlc = TerminalEvent::Key("ctrl+c".parse()?); let glyph_face: Face = "fg=gruv-1".parse()?; let glyph = if term.capabilities().glyphs { Cell::new_glyph(glyph_face, serde_json::from_str(CURSOR)?) } else { Cell::new_char(glyph_face, ' ') }; let mut event_count = 0; let mut pos = Position::new(0, 0); term.waker().wake()?; let mut layout_store = ViewLayoutStore::new(); term.run_render(|term, event, mut surf| -> Result<_, Error> { event_count += 1; surf.draw_check_pattern("fg=gruv-1,bg=gruv-3".parse()?); match event { None => return Ok(TerminalAction::Wait), Some(event) if &event == &q || &event == &ctrlc => return Ok(TerminalAction::Quit(())), Some(event) => { // update mouse position match event { TerminalEvent::Mouse(mouse) if mouse.name == KeyName::MouseMove => { pos = mouse.pos; } _ => (), } let size = surf.size(); surf.view_mut(1..-1, 1..-1).draw_view( &ViewContext::new(term)?, Some(&mut layout_store), Container::new(stats_view(term, &event, event_count)?) .with_vertical(if pos.row > size.height / 2 { Align::Start } else { Align::End }) .with_horizontal(if pos.col > size.width / 2 { Align::Start } else { Align::End }) .with_margins(Margins { left: 1, right: 1, ..Default::default() }), )?; } }; if let Some(cell) = surf.get_mut(pos) { *cell = glyph.clone(); } Ok(TerminalAction::Wait) })?; // switch off alt screen term.execute(TerminalCommand::altscreen_set(false))?; term.poll(Some(std::time::Duration::new(0, 0)))?; Ok(()) }