129 lines
2.8 KiB
Rust
129 lines
2.8 KiB
Rust
//!
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//! Cursor Examples
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//!
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extern crate crossterm;
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use self::crossterm::cursor::{cursor, TerminalCursor};
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use self::crossterm::{Context, Terminal };
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/// Set the cursor to position X: 10, Y: 5 in the terminal.
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pub fn goto()
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{
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let context = Terminal::new();
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// Get the cursor
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let mut cursor = cursor(&context);
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// Set the cursor to position X: 10, Y: 5 in the terminal
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cursor.goto(10,5);
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}
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/// Move the cursor 3 up | demonstration.
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pub fn move_up()
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{
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let context = Terminal::new();
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// Get the cursor
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let mut cursor = cursor(&context);
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// Move the cursor to position 3 times to the up in the terminal
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cursor.move_up(3);
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}
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/// Move the cursor 3 to the right | demonstration.
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pub fn move_right()
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{
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let context = Terminal::new();
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// Get the cursor
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let mut cursor = cursor(&context);
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// Move the cursor to position 3 times to the right in the terminal
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cursor.move_right(3);
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}
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/// Move the cursor 3 down | demonstration.
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pub fn move_down()
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{
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let context = Terminal::new();
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// Get the cursor
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let mut cursor = cursor(&context);
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// Move the cursor to position 3 times to the down in the terminal
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cursor.move_down(3);
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}
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/// Move the cursor 3 to the left | demonstration.
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pub fn move_left()
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{
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let context = Terminal::new();
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// Get the cursor
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let mut cursor = cursor(&context);
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// Move the cursor to position 3 times to the left in the terminal
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cursor.move_left(3);
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}
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/// Print character at X: 10 Y: 5 | demonstration.
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pub fn print()
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{
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let context = Terminal::new();
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// To print an some displayable content on an certain position.
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// Get the cursor
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let mut cursor = cursor(&context);
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// Set the cursor to position X: 10, Y: 5 in the terminal
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cursor.goto(10,5);
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// Print the @ symbol at position X: 10, Y: 5 in the terminal
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print!("@");
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// Rust is line buffered inorder to print at an certain position we need to clear the buffer first.
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use std;
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use std::io::Write;
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std::io::stdout().flush();
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/* Because the above method is a little to much code,
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you can use the `print()` method for printing an value at an certain position in the terminal.
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Crossterm provides method chaining so that the above points can be inlined.
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*/
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cursor.goto(10,5).print("@");
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}
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/// Save and reset cursor position | demonstration..
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pub fn safe_and_reset_position()
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{
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let context = Terminal::new();
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let mut cursor = cursor(&context);
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// Goto X: 5 Y: 5
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cursor.goto(5,5);
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// Safe cursor position: X: 5 Y: 5
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cursor.save_position();
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// Goto X: 5 Y: 20
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cursor.goto(5,20);
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// Print at X: 5 Y: 20.
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println!("Yea!");
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// Reset back to X: 5 Y: 5.
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cursor.reset_position();
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// Print Back at X: 5 Y: 5.
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println!("Back");
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println!()
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}
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