diff --git a/Cargo.toml b/Cargo.toml index a9b70c0..ec44c31 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -24,3 +24,7 @@ required-features = ["termion"] [[example]] name = "editor" required-features = ["crossterm"] + +[[example]] +name = "multi" +required-features = ["crossterm"] diff --git a/README.md b/README.md index fde48f7..565ad15 100644 --- a/README.md +++ b/README.md @@ -33,8 +33,8 @@ If you're using tui-rs with [termion][], enable `termion` feature instead of `cr ```toml [dependencies] -tui = { version = "*", default-features=false, features=["termion"] } -tui-textarea = { version = "*", default-features=false, features=["termion"] } +tui = { version = "*", default-features = false, features = ["termion"] } +tui-textarea = { version = "*", default-features = false, features = ["termion"] } ``` ## Examples @@ -49,6 +49,7 @@ cargo run --example minimal - [minimal](./examples/minimal.rs): Minimal usage with [crossterm][] support - [termion](./examples/termion.rs): Minimal usage with [termion][] support +- [multi](./examples/multi.rs): Two split textareas in a screen and switch them - [editor](./examples/editor.rs): Simple text editor to edit multiple files ## Minimal Usage @@ -379,8 +380,8 @@ supports it. In the case, support for neither crossterm nor termion is necessary ```toml [dependencies] -tui = { version = "*", default-features=false } -tui-textarea = { version = "*", default-features=false } +tui = { version = "*", default-features = false } +tui-textarea = { version = "*", default-features = false } ``` `tui_textarea::Input` is a type for backend-agnostic key input. What you need to do is converting key event in your own @@ -480,7 +481,7 @@ loop { } ``` -See [`editor` example](./examples/editor.rs) for working example. +See [`multi` example](./examples/multi.rs) and [`editor` example](./examples/editor.rs) for working example. ## Contributing to tui-textarea @@ -498,7 +499,7 @@ tui-textarea is distributed under [The MIT License](./LICENSE.txt). [crate]: https://crates.io/crates/tui-textarea [tui-rs]: https://github.com/fdehau/tui-rs [termion]: https://docs.rs/termion/latest/termion/ -[crosster]: https://docs.rs/crossterm/latest/crossterm/ +[crossterm]: https://docs.rs/crossterm/latest/crossterm/ [doc]: https://docs.rs/tui-textarea/latest/tui_textarea [tui-backend]: https://docs.rs/tui/latest/tui/backend/trait.Backend.html [repo]: https://github.com/rhysd/tui-textarea diff --git a/examples/multi.rs b/examples/multi.rs new file mode 100644 index 0000000..c154e6c --- /dev/null +++ b/examples/multi.rs @@ -0,0 +1,88 @@ +use crossterm::event::{DisableMouseCapture, EnableMouseCapture}; +use crossterm::terminal::{ + disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen, +}; +use std::io; +use tui::backend::CrosstermBackend; +use tui::layout::{Constraint, Direction, Layout}; +use tui::style::{Color, Modifier, Style}; +use tui::widgets::{Block, Borders}; +use tui::Terminal; +use tui_textarea::{Input, Key, TextArea}; + +fn inactivate(textarea: &mut TextArea<'_>) { + textarea.set_cursor_line_style(Style::default()); + textarea.set_cursor_style(Style::default()); + let b = textarea + .block() + .cloned() + .unwrap_or_else(|| Block::default().borders(Borders::ALL)); + textarea.set_block( + b.style(Style::default().fg(Color::DarkGray)) + .title(" Inactive (^X to switch) "), + ); +} + +fn activate(textarea: &mut TextArea<'_>) { + textarea.set_cursor_line_style(Style::default().add_modifier(Modifier::UNDERLINED)); + textarea.set_cursor_style(Style::default().add_modifier(Modifier::REVERSED)); + let b = textarea + .block() + .cloned() + .unwrap_or_else(|| Block::default().borders(Borders::ALL)); + textarea.set_block(b.style(Style::default()).title(" Active ")); +} + +fn main() -> io::Result<()> { + let stdout = io::stdout(); + let mut stdout = stdout.lock(); + enable_raw_mode()?; + crossterm::execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?; + let backend = CrosstermBackend::new(stdout); + let mut term = Terminal::new(backend)?; + + let mut textarea = [TextArea::default(), TextArea::default()]; + + let layout = Layout::default() + .direction(Direction::Horizontal) + .constraints([Constraint::Percentage(50), Constraint::Percentage(50)].as_ref()); + + let mut which = 0; + activate(&mut textarea[0]); + inactivate(&mut textarea[1]); + + loop { + term.draw(|f| { + let chunks = layout.split(f.size()); + for (textarea, chunk) in textarea.iter().zip(chunks) { + let widget = textarea.widget(); + f.render_widget(widget, chunk); + } + })?; + match Input::from(crossterm::event::read()?) { + Input { key: Key::Esc, .. } => break, + Input { + key: Key::Char('x'), + ctrl: true, + .. + } => { + inactivate(&mut textarea[which]); + which = (which + 1) % 2; + activate(&mut textarea[which]); + } + input => { + textarea[which].input(input); + } + } + } + + disable_raw_mode()?; + crossterm::execute!( + term.backend_mut(), + LeaveAlternateScreen, + DisableMouseCapture + )?; + term.show_cursor()?; + + Ok(()) +}