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https://github.com/FliegendeWurst/cursive.git
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ncurses: compute whole modifier table at runtime
This commit is contained in:
Alexandre Bury
parent
b2097bd1c8
commit
0c39f52016
@ -365,26 +365,6 @@ where
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}
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}
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fn parse_modifier(code: i32, key: Key) -> Event {
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match code {
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0 => Event::Alt(key),
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1 => Event::AltShift(key),
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2 => Event::Ctrl(key),
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3 => Event::CtrlShift(key),
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4 => Event::CtrlAlt(key),
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_ => {
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warn!("Parsing invalid modifier: {} for key {:?}", code, key);
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Event::Unknown(split_i32(code))
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}
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}
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}
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fn add_modifiers(start: i32, key: Key, map: &mut HashMap<i32, Event>) {
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for i in 0..5 {
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map.insert(start + i, parse_modifier(i, key));
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}
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}
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fn add_fn<F>(start: i32, with_key: F, map: &mut HashMap<i32, Event>)
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where
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F: Fn(Key) -> Event,
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@ -398,47 +378,47 @@ fn initialize_keymap() -> HashMap<i32, Event> {
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// First, define the static mappings.
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let mut map = hashmap!{
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// Value sent by ncurses when nothing happens
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-1 => Event::Refresh,
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// Value sent by ncurses when nothing happens
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-1 => Event::Refresh,
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// Values under 256 are chars and control values
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//
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// Tab is '\t'
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9 => Event::Key(Key::Tab),
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// Treat '\n' and the numpad Enter the same
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10 => Event::Key(Key::Enter),
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ncurses::KEY_ENTER => Event::Key(Key::Enter),
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// This is the escape key when pressed by itself.
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// When used for control sequences,
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// it should have been caught earlier.
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27 => Event::Key(Key::Esc),
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// `Backspace` sends 127, but Ctrl-H sends `Backspace`
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127 => Event::Key(Key::Backspace),
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ncurses::KEY_BACKSPACE => Event::Key(Key::Backspace),
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// Values under 256 are chars and control values
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//
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// Tab is '\t'
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9 => Event::Key(Key::Tab),
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// Treat '\n' and the numpad Enter the same
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10 => Event::Key(Key::Enter),
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ncurses::KEY_ENTER => Event::Key(Key::Enter),
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// This is the escape key when pressed by itself.
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// When used for control sequences,
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// it should have been caught earlier.
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27 => Event::Key(Key::Esc),
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// `Backspace` sends 127, but Ctrl-H sends `Backspace`
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127 => Event::Key(Key::Backspace),
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ncurses::KEY_BACKSPACE => Event::Key(Key::Backspace),
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410 => Event::WindowResize,
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410 => Event::WindowResize,
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ncurses::KEY_B2 => Event::Key(Key::NumpadCenter),
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ncurses::KEY_DC => Event::Key(Key::Del),
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ncurses::KEY_IC => Event::Key(Key::Ins),
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ncurses::KEY_BTAB => Event::Shift(Key::Tab),
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ncurses::KEY_SLEFT => Event::Shift(Key::Left),
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ncurses::KEY_SRIGHT => Event::Shift(Key::Right),
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ncurses::KEY_LEFT => Event::Key(Key::Left),
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ncurses::KEY_RIGHT => Event::Key(Key::Right),
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ncurses::KEY_UP => Event::Key(Key::Up),
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ncurses::KEY_DOWN => Event::Key(Key::Down),
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ncurses::KEY_SR => Event::Shift(Key::Up),
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ncurses::KEY_SF => Event::Shift(Key::Down),
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ncurses::KEY_PPAGE => Event::Key(Key::PageUp),
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ncurses::KEY_NPAGE => Event::Key(Key::PageDown),
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ncurses::KEY_HOME => Event::Key(Key::Home),
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ncurses::KEY_END => Event::Key(Key::End),
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ncurses::KEY_SHOME => Event::Shift(Key::Home),
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ncurses::KEY_SEND => Event::Shift(Key::End),
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ncurses::KEY_SDC => Event::Shift(Key::Del),
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ncurses::KEY_SNEXT => Event::Shift(Key::PageDown),
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ncurses::KEY_SPREVIOUS => Event::Shift(Key::PageUp),
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ncurses::KEY_B2 => Event::Key(Key::NumpadCenter),
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ncurses::KEY_DC => Event::Key(Key::Del),
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ncurses::KEY_IC => Event::Key(Key::Ins),
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ncurses::KEY_BTAB => Event::Shift(Key::Tab),
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ncurses::KEY_SLEFT => Event::Shift(Key::Left),
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ncurses::KEY_SRIGHT => Event::Shift(Key::Right),
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ncurses::KEY_LEFT => Event::Key(Key::Left),
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ncurses::KEY_RIGHT => Event::Key(Key::Right),
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ncurses::KEY_UP => Event::Key(Key::Up),
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ncurses::KEY_DOWN => Event::Key(Key::Down),
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ncurses::KEY_SR => Event::Shift(Key::Up),
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ncurses::KEY_SF => Event::Shift(Key::Down),
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ncurses::KEY_PPAGE => Event::Key(Key::PageUp),
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ncurses::KEY_NPAGE => Event::Key(Key::PageDown),
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ncurses::KEY_HOME => Event::Key(Key::Home),
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ncurses::KEY_END => Event::Key(Key::End),
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ncurses::KEY_SHOME => Event::Shift(Key::Home),
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ncurses::KEY_SEND => Event::Shift(Key::End),
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ncurses::KEY_SDC => Event::Shift(Key::Del),
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ncurses::KEY_SNEXT => Event::Shift(Key::PageDown),
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ncurses::KEY_SPREVIOUS => Event::Shift(Key::PageUp),
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};
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// Then add some dynamic ones
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@ -455,25 +435,45 @@ fn initialize_keymap() -> HashMap<i32, Event> {
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add_fn(313, Event::Alt, &mut map);
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// Those codes actually vary between ncurses versions...
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// Use ncurses::keyname to find the key representing kDC3 (alt-DEL)
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let del_offset = (512..1024)
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.find(|&code| {
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ncurses::keyname(code)
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.map(|name| &name == "kDC3")
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.unwrap_or(false)
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})
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.unwrap_or(522);
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add_modifiers(del_offset, Key::Del, &mut map);
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add_modifiers(del_offset + 6, Key::Down, &mut map);
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add_modifiers(del_offset + 11, Key::End, &mut map);
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add_modifiers(del_offset + 17, Key::Home, &mut map);
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add_modifiers(del_offset + 23, Key::Ins, &mut map);
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add_modifiers(del_offset + 28, Key::Left, &mut map);
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add_modifiers(del_offset + 33, Key::PageDown, &mut map);
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add_modifiers(del_offset + 38, Key::PageUp, &mut map);
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add_modifiers(del_offset + 43, Key::Right, &mut map);
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add_modifiers(del_offset + 49, Key::Up, &mut map);
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let key_names = hashmap!{
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"DC" => Key::Del,
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"DN" => Key::Down,
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"END" => Key::End,
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"HOM" => Key::Home,
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"IC" => Key::Ins,
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"LFT" => Key::Left,
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"NXT" => Key::PageDown,
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"PRV" => Key::PageUp,
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"RIT" => Key::Right,
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"UP" => Key::Up,
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};
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for code in 512..1024 {
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let name = match ncurses::keyname(code) {
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Some(name) => name,
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None => continue,
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};
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if !name.starts_with("k") {
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continue;
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}
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let (key_name, modifier) = name[1..].split_at(name.len() - 2);
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let key = match key_names.get(key_name) {
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Some(&key) => key,
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None => continue,
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};
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let event = match modifier {
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"3" => Event::Alt(key),
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"4" => Event::AltShift(key),
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"5" => Event::Ctrl(key),
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"6" => Event::CtrlShift(key),
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"7" => Event::CtrlAlt(key),
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_ => continue,
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};
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map.insert(code, event);
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}
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map
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}
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