mirror of
https://github.com/FliegendeWurst/cursive.git
synced 2024-11-23 17:35:00 +00:00
Produce mouse events from BLT backend
This commit is contained in:
Alexandre Bury
parent
acd12326e1
commit
5f3e4b1842
@ -5,147 +5,25 @@ use self::bear_lib_terminal::geometry::Size;
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use self::bear_lib_terminal::terminal::{self, state, Event as BltEvent,
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KeyCode};
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use backend;
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use event::{Event, Key};
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use std::collections::BTreeMap;
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use event::{Event, Key, MouseButton, MouseEvent};
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use theme::{BaseColor, Color, ColorPair, Effect};
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use vec::Vec2;
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use std::collections::HashSet;
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enum ColorRole {
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Foreground,
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Background,
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}
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pub struct Concrete {}
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impl backend::Backend for Concrete {
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fn init() -> Self {
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terminal::open("Cursive", 80, 24);
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terminal::set(terminal::config::Window::empty().resizeable(true));
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Concrete {}
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}
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fn finish(&mut self) {
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terminal::close();
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}
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fn with_color<F: FnOnce()>(&self, color: ColorPair, f: F) {
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let fg = colour_to_blt_colour(color.front, ColorRole::Foreground);
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let bg = colour_to_blt_colour(color.back, ColorRole::Background);
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terminal::with_colors(fg, bg, f);
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}
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fn with_effect<F: FnOnce()>(&self, effect: Effect, f: F) {
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match effect {
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Effect::Simple => f(),
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// TODO: how to do this correctly?`
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// BLT itself doesn't do this kind of thing,
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// we'd need the colours in our position,
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// but `f()` can do whatever
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Effect::Reverse => terminal::with_colors(
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BltColor::from_rgb(0, 0, 0),
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BltColor::from_rgb(255, 255, 255),
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f,
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),
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}
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}
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fn has_colors(&self) -> bool {
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true
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}
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fn screen_size(&self) -> (usize, usize) {
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let Size { width, height } = terminal::state::size();
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(width as usize, height as usize)
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}
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fn clear(&self, color: Color) {
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terminal::set_background(
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colour_to_blt_colour(color, ColorRole::Background),
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);
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terminal::clear(None);
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}
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fn refresh(&mut self) {
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terminal::refresh();
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}
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fn print_at(&self, (x, y): (usize, usize), text: &str) {
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terminal::print_xy(x as i32, y as i32, text);
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}
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fn set_refresh_rate(&mut self, _: u32) {
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// TODO: unsupported
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}
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fn poll_event(&mut self) -> Event {
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// TODO: we could add backend-specific controls here.
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// Ex: ctrl+mouse wheel cause window cellsize to change
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if let Some(ev) = terminal::wait_event() {
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match ev {
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BltEvent::Close => Event::Exit,
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BltEvent::Resize { .. } => Event::WindowResize,
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// TODO: mouse support
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BltEvent::MouseMove { .. } => Event::Refresh,
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BltEvent::MouseScroll { .. } => Event::Refresh,
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BltEvent::KeyPressed { key, ctrl, shift } => {
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blt_keycode_to_ev(key, shift, ctrl)
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}
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// TODO: there's no Key::Shift/Ctrl for w/e reason
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BltEvent::ShiftPressed => Event::Refresh,
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BltEvent::ControlPressed => Event::Refresh,
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// TODO: what should we do here?
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BltEvent::KeyReleased { .. } |
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BltEvent::ShiftReleased |
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BltEvent::ControlReleased => Event::Refresh,
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}
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} else {
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Event::Refresh
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}
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}
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pub struct Concrete {
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mouse_position: Vec2,
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buttons_pressed: HashSet<MouseButton>,
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}
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fn colour_to_blt_colour(clr: Color, role: ColorRole) -> BltColor {
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let (r, g, b) = match clr {
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Color::TerminalDefault => {
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let clr = match role {
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ColorRole::Foreground => state::foreground(),
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ColorRole::Background => state::background(),
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};
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return clr;
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}
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// Colours taken from
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// https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
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Color::Dark(BaseColor::Black) => (0, 0, 0),
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Color::Dark(BaseColor::Red) => (170, 0, 0),
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Color::Dark(BaseColor::Green) => (0, 170, 0),
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Color::Dark(BaseColor::Yellow) => (170, 85, 0),
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Color::Dark(BaseColor::Blue) => (0, 0, 170),
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Color::Dark(BaseColor::Magenta) => (170, 0, 170),
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Color::Dark(BaseColor::Cyan) => (0, 170, 170),
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Color::Dark(BaseColor::White) => (170, 170, 170),
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Color::Light(BaseColor::Black) => (85, 85, 85),
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Color::Light(BaseColor::Red) => (255, 85, 85),
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Color::Light(BaseColor::Green) => (85, 255, 85),
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Color::Light(BaseColor::Yellow) => (255, 255, 85),
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Color::Light(BaseColor::Blue) => (85, 85, 255),
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Color::Light(BaseColor::Magenta) => (255, 85, 255),
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Color::Light(BaseColor::Cyan) => (85, 255, 255),
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Color::Light(BaseColor::White) => (255, 255, 255),
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Color::Rgb(r, g, b) => (r, g, b),
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Color::RgbLowRes(r, g, b) => (
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(r as f32 / 5.0 * 255.0) as u8,
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(g as f32 / 5.0 * 255.0) as u8,
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(b as f32 / 5.0 * 255.0) as u8,
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),
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};
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BltColor::from_rgb(r, g, b)
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}
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fn blt_keycode_to_ev(kc: KeyCode, shift: bool, ctrl: bool) -> Event {
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impl Concrete {
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fn blt_keycode_to_ev(
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&mut self, kc: KeyCode, shift: bool, ctrl: bool
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) -> Event {
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match kc {
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KeyCode::F1 |
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KeyCode::F2 |
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@ -185,7 +63,16 @@ fn blt_keycode_to_ev(kc: KeyCode, shift: bool, ctrl: bool) -> Event {
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KeyCode::MouseRight |
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KeyCode::MouseMiddle |
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KeyCode::MouseFourth |
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KeyCode::MouseFifth => Event::Refresh,
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KeyCode::MouseFifth => blt_keycode_to_mouse_button(kc)
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.map(|btn| {
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self.buttons_pressed.insert(btn);
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Event::Mouse {
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event: MouseEvent::Press(btn),
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position: self.mouse_position,
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offset: Vec2::zero(),
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}
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})
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.unwrap_or(Event::Unknown(vec![])),
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KeyCode::A |
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KeyCode::B |
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KeyCode::C |
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@ -254,6 +141,181 @@ fn blt_keycode_to_ev(kc: KeyCode, shift: bool, ctrl: bool) -> Event {
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Event::Char(blt_keycode_to_char(kc, shift))
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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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terminal::open("Cursive", 80, 24);
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terminal::set(terminal::config::Window::empty().resizeable(true));
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terminal::set(vec![
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terminal::config::InputFilter::Group {
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group: terminal::config::InputFilterGroup::Keyboard,
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both: false,
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},
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terminal::config::InputFilter::Group {
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group: terminal::config::InputFilterGroup::Mouse,
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both: true,
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},
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]);
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Concrete {
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mouse_position: Vec2::zero(),
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buttons_pressed: HashSet::new(),
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}
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}
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fn finish(&mut self) {
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terminal::close();
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}
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fn with_color<F: FnOnce()>(&self, color: ColorPair, f: F) {
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let fg = colour_to_blt_colour(color.front, ColorRole::Foreground);
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let bg = colour_to_blt_colour(color.back, ColorRole::Background);
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terminal::with_colors(fg, bg, f);
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}
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fn with_effect<F: FnOnce()>(&self, effect: Effect, f: F) {
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match effect {
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Effect::Simple => f(),
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// TODO: how to do this correctly?`
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// BLT itself doesn't do this kind of thing,
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// we'd need the colours in our position,
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// but `f()` can do whatever
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Effect::Reverse => terminal::with_colors(
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BltColor::from_rgb(0, 0, 0),
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BltColor::from_rgb(255, 255, 255),
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f,
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),
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}
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}
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fn has_colors(&self) -> bool {
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true
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}
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fn screen_size(&self) -> (usize, usize) {
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let Size { width, height } = terminal::state::size();
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(width as usize, height as usize)
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}
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fn clear(&self, color: Color) {
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terminal::set_background(
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colour_to_blt_colour(color, ColorRole::Background),
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);
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terminal::clear(None);
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}
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fn refresh(&mut self) {
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terminal::refresh();
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}
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fn print_at(&self, (x, y): (usize, usize), text: &str) {
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terminal::print_xy(x as i32, y as i32, text);
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}
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fn set_refresh_rate(&mut self, _: u32) {
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// TODO: unsupported
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}
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fn poll_event(&mut self) -> Event {
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// TODO: we could add backend-specific controls here.
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// Ex: ctrl+mouse wheel cause window cellsize to change
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if let Some(ev) = terminal::wait_event() {
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match ev {
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BltEvent::Close => Event::Exit,
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BltEvent::Resize { .. } => Event::WindowResize,
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// TODO: mouse support
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BltEvent::MouseMove { x, y } => {
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self.mouse_position = Vec2::new(x as usize, y as usize);
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// TODO: find out if a button is pressed?
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match self.buttons_pressed.iter().next() {
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None => Event::Refresh,
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Some(btn) => Event::Mouse {
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event: MouseEvent::Hold(*btn),
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position: self.mouse_position,
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offset: Vec2::zero(),
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}
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}
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}
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BltEvent::MouseScroll { delta } => Event::Mouse {
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event: if delta < 0 {
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MouseEvent::WheelUp
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} else {
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MouseEvent::WheelDown
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},
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position: self.mouse_position,
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offset: Vec2::zero(),
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},
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BltEvent::KeyPressed { key, ctrl, shift } => {
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self.blt_keycode_to_ev(key, shift, ctrl)
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}
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// TODO: there's no Key::Shift/Ctrl for w/e reason
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BltEvent::ShiftPressed => Event::Refresh,
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BltEvent::ControlPressed => Event::Refresh,
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// TODO: what should we do here?
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BltEvent::KeyReleased { key, .. } => {
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// It's probably a mouse key.
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blt_keycode_to_mouse_button(key)
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.map(|btn| {
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self.buttons_pressed.remove(&btn);
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Event::Mouse {
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event: MouseEvent::Release(btn),
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position: self.mouse_position,
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offset: Vec2::zero(),
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}
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})
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.unwrap_or(Event::Unknown(vec![]))
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}
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BltEvent::ShiftReleased | BltEvent::ControlReleased => {
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Event::Refresh
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}
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}
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} else {
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Event::Refresh
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}
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}
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}
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fn colour_to_blt_colour(clr: Color, role: ColorRole) -> BltColor {
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let (r, g, b) = match clr {
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Color::TerminalDefault => {
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let clr = match role {
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ColorRole::Foreground => state::foreground(),
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ColorRole::Background => state::background(),
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};
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return clr;
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}
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// Colours taken from
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// https://en.wikipedia.org/wiki/ANSI_escape_code#Colors
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Color::Dark(BaseColor::Black) => (0, 0, 0),
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Color::Dark(BaseColor::Red) => (170, 0, 0),
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Color::Dark(BaseColor::Green) => (0, 170, 0),
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Color::Dark(BaseColor::Yellow) => (170, 85, 0),
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Color::Dark(BaseColor::Blue) => (0, 0, 170),
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Color::Dark(BaseColor::Magenta) => (170, 0, 170),
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Color::Dark(BaseColor::Cyan) => (0, 170, 170),
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Color::Dark(BaseColor::White) => (170, 170, 170),
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Color::Light(BaseColor::Black) => (85, 85, 85),
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Color::Light(BaseColor::Red) => (255, 85, 85),
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Color::Light(BaseColor::Green) => (85, 255, 85),
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Color::Light(BaseColor::Yellow) => (255, 255, 85),
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Color::Light(BaseColor::Blue) => (85, 85, 255),
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Color::Light(BaseColor::Magenta) => (255, 85, 255),
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Color::Light(BaseColor::Cyan) => (85, 255, 255),
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Color::Light(BaseColor::White) => (255, 255, 255),
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Color::Rgb(r, g, b) => (r, g, b),
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Color::RgbLowRes(r, g, b) => (
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(r as f32 / 5.0 * 255.0) as u8,
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(g as f32 / 5.0 * 255.0) as u8,
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(b as f32 / 5.0 * 255.0) as u8,
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),
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};
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BltColor::from_rgb(r, g, b)
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}
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fn blt_keycode_to_char(kc: KeyCode, shift: bool) -> char {
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@ -545,3 +607,12 @@ fn blt_keycode_to_key(kc: KeyCode) -> Key {
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_ => unreachable!(),
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}
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}
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fn blt_keycode_to_mouse_button(kc: KeyCode) -> Option<MouseButton> {
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Some(match kc {
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KeyCode::MouseLeft => MouseButton::Left,
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KeyCode::MouseRight => MouseButton::Right,
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KeyCode::MouseMiddle => MouseButton::Middle,
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_ => return None,
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})
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}
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