mirror of
https://github.com/FliegendeWurst/cursive.git
synced 2024-11-10 03:10:41 +00:00
Output mouse events from ncurses backend
This commit is contained in:
parent
976728fd25
commit
9497ded014
@ -2,23 +2,27 @@ extern crate ncurses;
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use self::super::find_closest;
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use backend;
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use event::{Event, Key};
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use std::cell::{RefCell, Cell};
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use event::{Event, Key, MouseButton, MouseEvent};
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use std::cell::{Cell, RefCell};
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use std::collections::HashMap;
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use theme::{Color, ColorPair, Effect};
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use utf8;
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use vec::Vec2;
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pub struct Concrete {
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current_style: Cell<ColorPair>,
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pairs: RefCell<HashMap<ColorPair, i16>>,
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last_mouse_button: Option<MouseButton>,
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event_queue: Vec<Event>,
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}
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impl Concrete {
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/// Save a new color pair.
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fn insert_color(&self, pairs: &mut HashMap<ColorPair, i16>,
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pair: ColorPair)
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-> i16 {
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fn insert_color(
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&self, pairs: &mut HashMap<ColorPair, i16>, pair: ColorPair
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) -> i16 {
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let n = 1 + pairs.len() as i16;
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let target = if ncurses::COLOR_PAIRS() > n as i32 {
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// We still have plenty of space for everyone.
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@ -31,15 +35,16 @@ impl Concrete {
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target
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};
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pairs.insert(pair, target);
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ncurses::init_pair(target,
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find_closest(&pair.front),
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find_closest(&pair.back));
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ncurses::init_pair(
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target,
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find_closest(&pair.front),
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find_closest(&pair.back),
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);
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target
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}
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/// Checks the pair in the cache, or re-define a color if needed.
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fn get_or_create(&self, pair: ColorPair) -> i16 {
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let mut pairs = self.pairs.borrow_mut();
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// Find if we have this color in stock
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@ -52,33 +57,247 @@ impl Concrete {
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}
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fn set_colors(&self, pair: ColorPair) {
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let i = self.get_or_create(pair);
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self.current_style.set(pair);
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let style = ncurses::COLOR_PAIR(i);
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ncurses::attron(style);
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}
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fn parse_mouse_event(&mut self) -> Event {
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let mut mevent = ncurses::MEVENT {
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id: 0,
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x: 0,
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y: 0,
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z: 0,
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bstate: 0,
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};
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if ncurses::getmouse(&mut mevent as *mut ncurses::MEVENT)
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== ncurses::OK
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{
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// eprintln!("{:032b}", mevent.bstate);
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// Currently unused
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let _shift = (mevent.bstate & ncurses::BUTTON_SHIFT as u32) != 0;
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let _alt = (mevent.bstate & ncurses::BUTTON_ALT as u32) != 0;
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let _ctrl = (mevent.bstate & ncurses::BUTTON_CTRL as u32) != 0;
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mevent.bstate &= !(ncurses::BUTTON_SHIFT | ncurses::BUTTON_ALT
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| ncurses::BUTTON_CTRL) as u32;
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let make_event = |event| {
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Event::Mouse {
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offset: Vec2::zero(),
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position: Vec2::new(mevent.x as usize, mevent.y as usize),
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event: event,
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}
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};
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if mevent.bstate == ncurses::REPORT_MOUSE_POSITION as u32 {
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// The event is either a mouse drag event,
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// or a weird double-release event. :S
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self.last_mouse_button
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.map(|b| MouseEvent::Hold(b))
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.map(&make_event)
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.unwrap_or(Event::Unknown(vec![]))
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} else {
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// Identify the button
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let mut bare_event = (mevent.bstate & ((1 << 25) - 1)) as i32;
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let mut event = None;
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while bare_event != 0 {
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let single_event = 1 << bare_event.trailing_zeros();
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bare_event ^= single_event;
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// Process single_event
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get_event(single_event, |e| if event.is_none() {
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event = Some(e);
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} else {
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self.event_queue.push(make_event(e));
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});
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}
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if let Some(event) = event {
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if let Some(btn) = event.button() {
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self.last_mouse_button = Some(btn);
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}
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make_event(event)
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} else {
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debug!("No event parsed?...");
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Event::Unknown(vec![])
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}
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}
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} else {
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debug!("Ncurses event not recognized.");
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Event::Unknown(vec![])
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}
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}
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fn parse_ncurses_char(&mut self, ch: i32) -> Event {
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match ch {
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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 | 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, 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 | ncurses::KEY_BACKSPACE => Event::Key(Key::Backspace),
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410 => Event::WindowResize,
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// Values 512 and above are probably extensions
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// Those keys don't seem to be documented...
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520 => Event::Alt(Key::Del),
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521 => Event::AltShift(Key::Del),
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522 => Event::Ctrl(Key::Del),
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523 => Event::CtrlShift(Key::Del),
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//
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// 524?
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526 => Event::Alt(Key::Down),
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527 => Event::AltShift(Key::Down),
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528 => Event::Ctrl(Key::Down),
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529 => Event::CtrlShift(Key::Down),
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530 => Event::CtrlAlt(Key::Down),
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531 => Event::Alt(Key::End),
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532 => Event::AltShift(Key::End),
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533 => Event::Ctrl(Key::End),
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534 => Event::CtrlShift(Key::End),
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535 => Event::CtrlAlt(Key::End),
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536 => Event::Alt(Key::Home),
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537 => Event::AltShift(Key::Home),
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538 => Event::Ctrl(Key::Home),
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539 => Event::CtrlShift(Key::Home),
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540 => Event::CtrlAlt(Key::Home),
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541 => Event::Alt(Key::Ins),
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542 => Event::AltShift(Key::Ins),
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543 => Event::Ctrl(Key::Ins),
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// 544: CtrlShiftIns?
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545 => Event::CtrlAlt(Key::Ins),
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546 => Event::Alt(Key::Left),
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547 => Event::AltShift(Key::Left),
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548 => Event::Ctrl(Key::Left),
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549 => Event::CtrlShift(Key::Left),
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550 => Event::CtrlAlt(Key::Left),
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551 => Event::Alt(Key::PageDown),
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552 => Event::AltShift(Key::PageDown),
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553 => Event::Ctrl(Key::PageDown),
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554 => Event::CtrlShift(Key::PageDown),
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555 => Event::CtrlAlt(Key::PageDown),
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556 => Event::Alt(Key::PageUp),
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557 => Event::AltShift(Key::PageUp),
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558 => Event::Ctrl(Key::PageUp),
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559 => Event::CtrlShift(Key::PageUp),
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560 => Event::CtrlAlt(Key::PageUp),
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561 => Event::Alt(Key::Right),
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562 => Event::AltShift(Key::Right),
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563 => Event::Ctrl(Key::Right),
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564 => Event::CtrlShift(Key::Right),
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565 => Event::CtrlAlt(Key::Right),
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// 566?
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567 => Event::Alt(Key::Up),
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568 => Event::AltShift(Key::Up),
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569 => Event::Ctrl(Key::Up),
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570 => Event::CtrlShift(Key::Up),
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571 => Event::CtrlAlt(Key::Up),
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ncurses::KEY_MOUSE => self.parse_mouse_event(),
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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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// All Fn keys use the same enum with associated number
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f @ ncurses::KEY_F1...ncurses::KEY_F12 => {
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Event::Key(Key::from_f((f - ncurses::KEY_F0) as u8))
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}
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f @ 277...288 => Event::Shift(Key::from_f((f - 276) as u8)),
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f @ 289...300 => Event::Ctrl(Key::from_f((f - 288) as u8)),
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f @ 301...312 => Event::CtrlShift(Key::from_f((f - 300) as u8)),
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f @ 313...324 => Event::Alt(Key::from_f((f - 312) as u8)),
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// Values 8-10 (H,I,J) are used by other commands,
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// so we probably won't receive them. Meh~
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c @ 1...25 => Event::CtrlChar((b'a' + (c - 1) as u8) as char),
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other => {
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// Split the i32 into 4 bytes
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Event::Unknown(
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(0..4)
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.map(|i| ((other >> (8 * i)) & 0xFF) as u8)
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.collect(),
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)
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}
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}
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}
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}
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impl backend::Backend for Concrete {
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fn init() -> Self {
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// Change the locale. For some reasons it's mandatory to get some UTF-8 support.
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ncurses::setlocale(ncurses::LcCategory::all, "");
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// The delay is the time ncurses wait after pressing ESC
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// to see if it's an escape sequence.
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// Default delay is way too long. 25 is imperceptible yet works fine.
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ncurses::setlocale(ncurses::LcCategory::all, "");
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::std::env::set_var("ESCDELAY", "25");
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ncurses::initscr();
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ncurses::keypad(ncurses::stdscr(), true);
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// This disables mouse click detection,
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// and provides 0-delay access to mouse presses.
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ncurses::mouseinterval(0);
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// Listen to all mouse events.
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ncurses::mousemask(
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(ncurses::ALL_MOUSE_EVENTS | ncurses::REPORT_MOUSE_POSITION)
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as u32,
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None,
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);
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ncurses::noecho();
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ncurses::cbreak();
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ncurses::start_color();
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// Pick up background and text color from the terminal theme.
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ncurses::use_default_colors();
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// No cursor
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ncurses::curs_set(ncurses::CURSOR_VISIBILITY::CURSOR_INVISIBLE);
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// This asks the terminal to provide us with mouse drag events
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// (Mouse move when a button is pressed).
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// Replacing 1002 with 1003 would give us ANY mouse move.
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println!("\x1B[?1002h");
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Concrete {
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current_style: Cell::new(ColorPair::from_256colors(0, 0)),
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pairs: RefCell::new(HashMap::new()),
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last_mouse_button: None,
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event_queue: Vec::new(),
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}
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}
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@ -94,6 +313,7 @@ impl backend::Backend for Concrete {
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}
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fn finish(&mut self) {
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println!("\x1B[?1002l");
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ncurses::endwin();
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}
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@ -123,9 +343,9 @@ impl backend::Backend for Concrete {
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fn clear(&self, color: Color) {
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let id = self.get_or_create(ColorPair {
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front: color,
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back: color,
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});
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front: color,
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back: color,
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});
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ncurses::wbkgd(ncurses::stdscr(), ncurses::COLOR_PAIR(id));
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ncurses::clear();
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@ -140,16 +360,19 @@ impl backend::Backend for Concrete {
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}
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fn poll_event(&mut self) -> Event {
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let ch: i32 = ncurses::getch();
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self.event_queue.pop().unwrap_or_else(|| {
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let ch: i32 = ncurses::getch();
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// Is it a UTF-8 starting point?
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if 32 <= ch && ch <= 255 && ch != 127 {
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Event::Char(utf8::read_char(ch as u8,
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|| Some(ncurses::getch() as u8))
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.unwrap())
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} else {
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parse_ncurses_char(ch)
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}
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// Is it a UTF-8 starting point?
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if 32 <= ch && ch <= 255 && ch != 127 {
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Event::Char(
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utf8::read_char(ch as u8, || Some(ncurses::getch() as u8))
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.unwrap(),
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)
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} else {
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self.parse_ncurses_char(ch)
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}
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})
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}
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fn set_refresh_rate(&mut self, fps: u32) {
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@ -162,126 +385,85 @@ impl backend::Backend for Concrete {
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}
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/// Returns the Key enum corresponding to the given ncurses event.
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fn parse_ncurses_char(ch: i32) -> Event {
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match ch {
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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 |
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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, 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 |
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ncurses::KEY_BACKSPACE => Event::Key(Key::Backspace),
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410 => Event::WindowResize,
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// Values 512 and above are probably extensions
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// Those keys don't seem to be documented...
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520 => Event::Alt(Key::Del),
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521 => Event::AltShift(Key::Del),
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522 => Event::Ctrl(Key::Del),
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523 => Event::CtrlShift(Key::Del),
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//
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// 524?
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526 => Event::Alt(Key::Down),
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527 => Event::AltShift(Key::Down),
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528 => Event::Ctrl(Key::Down),
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529 => Event::CtrlShift(Key::Down),
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530 => Event::CtrlAlt(Key::Down),
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531 => Event::Alt(Key::End),
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532 => Event::AltShift(Key::End),
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533 => Event::Ctrl(Key::End),
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534 => Event::CtrlShift(Key::End),
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535 => Event::CtrlAlt(Key::End),
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536 => Event::Alt(Key::Home),
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537 => Event::AltShift(Key::Home),
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538 => Event::Ctrl(Key::Home),
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539 => Event::CtrlShift(Key::Home),
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540 => Event::CtrlAlt(Key::Home),
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541 => Event::Alt(Key::Ins),
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542 => Event::AltShift(Key::Ins),
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543 => Event::Ctrl(Key::Ins),
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// 544: CtrlShiftIns?
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545 => Event::CtrlAlt(Key::Ins),
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546 => Event::Alt(Key::Left),
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547 => Event::AltShift(Key::Left),
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548 => Event::Ctrl(Key::Left),
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549 => Event::CtrlShift(Key::Left),
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550 => Event::CtrlAlt(Key::Left),
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551 => Event::Alt(Key::PageDown),
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552 => Event::AltShift(Key::PageDown),
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553 => Event::Ctrl(Key::PageDown),
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554 => Event::CtrlShift(Key::PageDown),
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555 => Event::CtrlAlt(Key::PageDown),
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556 => Event::Alt(Key::PageUp),
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557 => Event::AltShift(Key::PageUp),
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558 => Event::Ctrl(Key::PageUp),
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559 => Event::CtrlShift(Key::PageUp),
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560 => Event::CtrlAlt(Key::PageUp),
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561 => Event::Alt(Key::Right),
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562 => Event::AltShift(Key::Right),
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563 => Event::Ctrl(Key::Right),
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564 => Event::CtrlShift(Key::Right),
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565 => Event::CtrlAlt(Key::Right),
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// 566?
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567 => Event::Alt(Key::Up),
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568 => Event::AltShift(Key::Up),
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569 => Event::Ctrl(Key::Up),
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570 => Event::CtrlShift(Key::Up),
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571 => Event::CtrlAlt(Key::Up),
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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),
|
||||
ncurses::KEY_PPAGE => Event::Key(Key::PageUp),
|
||||
ncurses::KEY_NPAGE => Event::Key(Key::PageDown),
|
||||
ncurses::KEY_HOME => Event::Key(Key::Home),
|
||||
ncurses::KEY_END => Event::Key(Key::End),
|
||||
ncurses::KEY_SHOME => Event::Shift(Key::Home),
|
||||
ncurses::KEY_SEND => Event::Shift(Key::End),
|
||||
ncurses::KEY_SDC => Event::Shift(Key::Del),
|
||||
ncurses::KEY_SNEXT => Event::Shift(Key::PageDown),
|
||||
ncurses::KEY_SPREVIOUS => Event::Shift(Key::PageUp),
|
||||
// All Fn keys use the same enum with associated number
|
||||
f @ ncurses::KEY_F1...ncurses::KEY_F12 => {
|
||||
Event::Key(Key::from_f((f - ncurses::KEY_F0) as u8))
|
||||
}
|
||||
f @ 277...288 => Event::Shift(Key::from_f((f - 276) as u8)),
|
||||
f @ 289...300 => Event::Ctrl(Key::from_f((f - 288) as u8)),
|
||||
f @ 301...312 => Event::CtrlShift(Key::from_f((f - 300) as u8)),
|
||||
f @ 313...324 => Event::Alt(Key::from_f((f - 312) as u8)),
|
||||
// Values 8-10 (H,I,J) are used by other commands,
|
||||
// so we probably won't receive them. Meh~
|
||||
c @ 1...25 => Event::CtrlChar((b'a' + (c - 1) as u8) as char),
|
||||
other => {
|
||||
// Split the i32 into 4 bytes
|
||||
Event::Unknown((0..4)
|
||||
.map(|i| ((other >> (8 * i)) & 0xFF) as u8)
|
||||
.collect())
|
||||
}
|
||||
fn get_button(bare_event: i32) -> MouseButton {
|
||||
match bare_event {
|
||||
ncurses::BUTTON1_RELEASED |
|
||||
ncurses::BUTTON1_PRESSED |
|
||||
ncurses::BUTTON1_CLICKED |
|
||||
ncurses::BUTTON1_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON1_TRIPLE_CLICKED => MouseButton::Left,
|
||||
ncurses::BUTTON2_RELEASED |
|
||||
ncurses::BUTTON2_PRESSED |
|
||||
ncurses::BUTTON2_CLICKED |
|
||||
ncurses::BUTTON2_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON2_TRIPLE_CLICKED => MouseButton::Middle,
|
||||
ncurses::BUTTON3_RELEASED |
|
||||
ncurses::BUTTON3_PRESSED |
|
||||
ncurses::BUTTON3_CLICKED |
|
||||
ncurses::BUTTON3_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON3_TRIPLE_CLICKED => MouseButton::Right,
|
||||
ncurses::BUTTON4_RELEASED |
|
||||
ncurses::BUTTON4_PRESSED |
|
||||
ncurses::BUTTON4_CLICKED |
|
||||
ncurses::BUTTON4_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON4_TRIPLE_CLICKED => MouseButton::Button4,
|
||||
ncurses::BUTTON5_RELEASED |
|
||||
ncurses::BUTTON5_PRESSED |
|
||||
ncurses::BUTTON5_CLICKED |
|
||||
ncurses::BUTTON5_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON5_TRIPLE_CLICKED => MouseButton::Button5,
|
||||
_ => MouseButton::Other,
|
||||
}
|
||||
}
|
||||
|
||||
/// Parse the given code into one or more event.
|
||||
///
|
||||
/// If the given event code should expend into multiple events
|
||||
/// (for instance click expends into PRESS + RELEASE),
|
||||
/// the returned Vec will include those queued events.
|
||||
///
|
||||
/// The main event is returned separately to avoid allocation in most cases.
|
||||
fn get_event<F>(bare_event: i32, mut f: F)
|
||||
where
|
||||
F: FnMut(MouseEvent),
|
||||
{
|
||||
let button = get_button(bare_event);
|
||||
match bare_event {
|
||||
ncurses::BUTTON4_PRESSED => f(MouseEvent::WheelUp),
|
||||
ncurses::BUTTON5_PRESSED => f(MouseEvent::WheelDown),
|
||||
ncurses::BUTTON1_RELEASED |
|
||||
ncurses::BUTTON2_RELEASED |
|
||||
ncurses::BUTTON3_RELEASED |
|
||||
ncurses::BUTTON4_RELEASED |
|
||||
ncurses::BUTTON5_RELEASED => f(MouseEvent::Release(button)),
|
||||
ncurses::BUTTON1_PRESSED |
|
||||
ncurses::BUTTON2_PRESSED |
|
||||
ncurses::BUTTON3_PRESSED => f(MouseEvent::Press(button)),
|
||||
ncurses::BUTTON1_CLICKED |
|
||||
ncurses::BUTTON2_CLICKED |
|
||||
ncurses::BUTTON3_CLICKED |
|
||||
ncurses::BUTTON4_CLICKED |
|
||||
ncurses::BUTTON5_CLICKED => {
|
||||
f(MouseEvent::Press(button));
|
||||
f(MouseEvent::Release(button));
|
||||
}
|
||||
// Well, we disabled click detection
|
||||
ncurses::BUTTON1_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON2_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON3_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON4_DOUBLE_CLICKED |
|
||||
ncurses::BUTTON5_DOUBLE_CLICKED => for _ in 0..2 {
|
||||
f(MouseEvent::Press(button));
|
||||
f(MouseEvent::Release(button));
|
||||
},
|
||||
ncurses::BUTTON1_TRIPLE_CLICKED |
|
||||
ncurses::BUTTON2_TRIPLE_CLICKED |
|
||||
ncurses::BUTTON3_TRIPLE_CLICKED |
|
||||
ncurses::BUTTON4_TRIPLE_CLICKED |
|
||||
ncurses::BUTTON5_TRIPLE_CLICKED => for _ in 0..3 {
|
||||
f(MouseEvent::Press(button));
|
||||
f(MouseEvent::Release(button));
|
||||
},
|
||||
_ => debug!("Unknown event: {:032b}", bare_event),
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user