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rust: k210-console: Add cursor positioning

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This commit is contained in:
Wladimir J. van der Laan 2020-02-07 18:06:42 +00:00
parent 412e414198
commit 556b375078
1 changed files with 30 additions and 0 deletions
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30
rust/k210-console/src/console.rs
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@ -248,6 +248,14 @@ impl Console {
} }
} }
/** Handle 'H' or 'f' CSI. */
fn handle_cursorhome(&mut self) {
let param = &self.num[0..self.idx+1];
let x = param.get(0).unwrap_or(&0);
let y = param.get(1).unwrap_or(&0);
self.cursor_pos = Coord::new(x.saturating_sub(1), y.saturating_sub(1));
}
/** Scroll (only up, currently) */ /** Scroll (only up, currently) */
pub fn scroll(&mut self) { pub fn scroll(&mut self) {
let gw = usize::from(GRID_WIDTH); let gw = usize::from(GRID_WIDTH);
@ -327,6 +335,28 @@ impl Console {
self.handle_sgr(); self.handle_sgr();
self.state = State::Initial; self.state = State::Initial;
} }
/*
TODO: cursor movement
Esc[ValueA Move cursor up n lines CUU
Esc[ValueB Move cursor down n lines CUD
Esc[ValueC Move cursor right n lines CUF
Esc[ValueD Move cursor left n lines CUB
Esc[H Move cursor to upper left corner cursorhome
Esc[;H Move cursor to upper left corner cursorhome
Esc[Line;ColumnH Move cursor to screen location v,h CUP
Esc[f Move cursor to upper left corner hvhome
Esc[;f Move cursor to upper left corner hvhome
Esc[Line;Columnf Move cursor to screen location v,h CUP
EscD Move/scroll window up one line IND
EscM Move/scroll window down one line RI
EscE Move to next line NEL
Esc7 Save cursor position and attributes DECSC
Esc8 Restore cursor position and attributes DECSC
*/
'H' | 'f' => {
self.handle_cursorhome();
self.state = State::Initial;
}
_ => { _ => {
self.state = State::Initial; self.state = State::Initial;
} }