init

.gitignore

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+# Created by https://www.toptal.com/developers/gitignore/api/rust
+# Edit at https://www.toptal.com/developers/gitignore?templates=rust
+
+### Rust ###
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# End of https://www.toptal.com/developers/gitignore/api/rust
+# Created by https://www.toptal.com/developers/gitignore/api/visualstudiocode
+# Edit at https://www.toptal.com/developers/gitignore?templates=visualstudiocode
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+.ionide
+
+# End of https://www.toptal.com/developers/gitignore/api/visualstudiocode
+
+
+# Added by cargo
+
+/target

Cargo.toml

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+[package]
+name = "todo"
+author = ["Iurii Kondrakov <[email protected]>"]
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+termion = "2.0.1"

README.md

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+# Todo
+
+A terminal based todo list manager written in Rust.

src/main.rs

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+extern crate termion;
+
+use std::cmp::*;
+use std::io::{stdin, stdout, Read, Write};
+use termion::event::Key;
+use termion::input::TermRead;
+use termion::raw::{IntoRawMode};
+use termion::screen::{IntoAlternateScreen, AlternateScreen};
+use termion::{color, style};
+
+fn screen_highlight<W: Write>(s: &mut AlternateScreen<W>) {
+    write!(
+        s,
+        "{}{}",
+        color::Fg(color::Black),
+        color::Bg(color::White)
+    ).unwrap();
+}
+
+fn screen_write<W: Write>(s: &mut AlternateScreen<W>, text: &str, row: u16) {
+    write!(s, "{}{}",  termion::cursor::Goto(1, (row + 1) as u16),  text).unwrap();
+}
+
+fn screen_style_reset<W: Write>(s: &mut AlternateScreen<W>) {
+    write!(s, "{}", style::Reset).unwrap();
+}
+
+fn main() {
+    let mut stdin = stdin();
+    let mut screen = stdout()
+        .into_raw_mode()
+        .unwrap()
+        .into_alternate_screen()
+        .unwrap();
+
+    write!(
+        screen,
+        "{}{}",
+        termion::clear::All,
+        termion::cursor::Goto(1, 1)
+    )
+    .unwrap();
+    screen.flush().unwrap();
+
+    let mut cur_todo: usize = 0;
+    let mut quit: bool = false;
+    let todos: Vec<&str> = vec![
+        "Finish Scancore",
+        "Make a cup of tea",
+        "Write a Rust TODO app",
+    ];
+
+    while !quit {
+        for (row, todo) in todos.iter().enumerate() {
+            if cur_todo == row { screen_highlight(&mut screen); }
+            screen_write(&mut screen, todo, row as u16);
+            screen_style_reset(&mut screen);
+        }
+        screen.flush().unwrap();
+
+        if let Some(Ok(key)) = stdin.by_ref().keys().next() {
+            match key {
+                Key::Esc | Key::Char('q') => quit = true,
+                Key::Up | Key::Char('w') => {
+                    if cur_todo > 0 {
+                        cur_todo -= 1;
+                    }
+                }
+                Key::Down | Key::Char('s') => cur_todo = min(cur_todo + 1, todos.len() - 1),
+                _ => {}
+            }
+        }
+    }
+}

src/main.txt

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+mod todo;
+
+use todo::*;
+use std::vec;
+use ncurses::*;
+use std::cmp::*;
+
+fn main() {
+    initscr();
+    init_style();
+
+    let mut quit: bool = false;
+    let mut cur_todo: usize = 0;
+    let mut todos: Vec<&str> = vec![
+        "Finish Scancore",
+        "Make a cup of tea",
+        "Write a Rust TODO app"
+    ];
+
+    while !quit {
+        for (row, todo) in todos.iter().enumerate() {
+            let pair = {
+                if row == cur_todo {
+                    HIGHLIGHT_PAIR
+                } else {
+                    REGULAR_PAIR
+                }
+            };
+
+            attron(COLOR_PAIR(pair));
+            mv(row as i32, 1);
+            addstr(*todo);
+            attroff(COLOR_PAIR(pair));
+        }
+
+        refresh();
+
+        let key: i32 = getch();
+        match key as u8 as char {
+            'q'|'Q'| => quit = true,
+            'w'|'W' => if cur_todo > 0 {
+                cur_todo -= 1;
+            },
+            's'|'S' => cur_todo = min(cur_todo + 1, todos.len()),
+            _ => {}
+        }
+    }
+    endwin();
+}

src/todo.rs

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+mod style;
+
+pub use self::style::*;