A simple CPU rendered GUI IDE experience.
Diffstat (limited to 'src/main.rs')
| -rw-r--r-- | src/main.rs | 54 |
1 files changed, 51 insertions, 3 deletions
diff --git a/src/main.rs b/src/main.rs index 4ce2920..021cfdc 100644 --- a/src/main.rs +++ b/src/main.rs @@ -28,7 +28,9 @@ use dsb::{Cell, F}; use fimg::Image; use rust_fsm::StateMachineImpl; use swash::{FontRef, Instance}; -use winit::event::{ElementState, Event, MouseScrollDelta, WindowEvent}; +use winit::event::{ + ElementState, Event, MouseButton, MouseScrollDelta, WindowEvent, +}; use winit::event_loop::{ControlFlow, EventLoop}; use winit::keyboard::{Key, ModifiersState, NamedKey, SmolStr}; @@ -59,6 +61,8 @@ pub(crate) fn entry(event_loop: EventLoop<()>) { F::instance(*IFONT, *BIFONT), ); + let mut cursor_position = (0, 0); + let mut state = State::Default; let mut bar = Bar { text: TextArea::default(), last_action: String::default() }; @@ -96,6 +100,7 @@ pub(crate) fn entry(event_loop: EventLoop<()>) { .with_event_handler( move |(window, _context), surface, event, elwt| { elwt.set_control_flow(ControlFlow::Wait); + let (fw, fh) = dsb::dims(&FONT, ppem); let (c, r) = dsb::fit( &FONT, ppem, @@ -160,13 +165,14 @@ pub(crate) fn entry(event_loop: EventLoop<()>) { State::Selection(x) => Some(x.clone()), _ => None, }; - let t_ox = text.line_numbers( + text.line_numbers( (c, r - 1), [67, 76, 87], BG, (&mut cells, (c, r)), (1, 0), - ) + 1; + ); + let t_ox = text.line_number_offset() + 1; text.write_to( (c - t_ox, r - 1), FG, @@ -258,6 +264,43 @@ pub(crate) fn entry(event_loop: EventLoop<()>) { elwt.exit(); } Event::WindowEvent { + event: WindowEvent::CursorMoved { position, .. }, + .. + } => { + let met = FONT.metrics(&[]); + let fac = ppem / met.units_per_em as f32; + dbg!(cursor_position); + cursor_position = ( + (position.x / (fw) as f64).round() as usize, + (position.y / (fh + ls * fac) as f64).floor() + as usize, + ) + } + Event::WindowEvent { + event: + WindowEvent::MouseInput { state: bt, button, .. }, + .. + } if bt.is_pressed() => { + match state.consume(Action::M(button)).unwrap() { + Some(Do::MoveCursor) => { + let l_i = text.vo + cursor_position.1; + _ = text.rope.try_line_to_char(l_i).map(|l| { + text.cursor = l + + (text.rope.line(l_i).len_chars() + - 1) + .min( + cursor_position.0.saturating_sub( + text.line_number_offset() + 1, + ), + ); + text.setc(); + }); + } + None => {} + _ => unreachable!(), + } + } + Event::WindowEvent { window_id: _, event: WindowEvent::MouseWheel { @@ -361,6 +404,9 @@ pub(crate) fn entry(event_loop: EventLoop<()>) { Some(Do::Paste) => { text.insert(&clipp::paste()); } + Some(Do::MoveCursor) => { + unreachable!() + } None => {} } window.request_redraw(); @@ -446,7 +492,9 @@ Default => { K(Key::Character(x) if x == "q" && ctrl()) => Dead [Quit], K(Key::Character(x) if x == "v" && ctrl()) => Default [Paste], K(Key::Named(NamedKey::ArrowUp | NamedKey::ArrowLeft | NamedKey::ArrowDown | NamedKey::ArrowRight | NamedKey::Home | NamedKey::End) if shift()) => Selection(Range<usize> => 0..0) [StartSelection], + M(MouseButton => MouseButton::Left) => Default [MoveCursor], K(_) => Default [Edit], + M(_) => Default, }, Selection(x) => { K(Key::Named(NamedKey::ArrowUp | NamedKey::ArrowLeft | NamedKey::ArrowDown | NamedKey::ArrowRight | NamedKey::Home | NamedKey::End) if shift()) => Selection(x) [UpdateSelection], |