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neovide/src/window.rs

144 lines
5.2 KiB
Rust

use std::sync::{Arc, Mutex};
use std::any::Any;
use skulpin::{CoordinateSystem, CoordinateSystemHelper, RendererBuilder};
use skulpin::skia_safe::{Canvas, Color4f, Font, FontStyle, Point, Paint, Rect, Typeface};
use skulpin::skia_safe::paint::Style;
use skulpin::skia_safe::matrix::ScaleToFit;
use skulpin::winit::dpi::LogicalSize;
use skulpin::winit::event::{ElementState, Event, KeyboardInput, VirtualKeyCode, WindowEvent};
use skulpin::winit::event_loop::{ControlFlow, EventLoop};
use skulpin::winit::window::WindowBuilder;
use neovim_lib::NeovimApi;
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use crate::editor::{DrawCommand, Editor, Colors};
use crate::keybindings::construct_keybinding_string;
const FONT_NAME: &str = "Delugia Nerd Font";
const FONT_SIZE: f32 = 14.0;
const FONT_WIDTH: f32 = 8.2;
const FONT_HEIGHT: f32 = 16.4;
// fn process_draw_commands(draw_commands: &Vec<DrawCommand>, default_colors: &Colors, piet: &mut Piet, font: &PietFont) {
// }
fn draw(
editor: &Arc<Mutex<Editor>>,
canvas: &mut Canvas
) {
let typeface = Typeface::new(FONT_NAME, FontStyle::default()).expect("Could not load font file.");
let font = Font::from_typeface(typeface, FONT_SIZE);
// let shaper = Shaper::new(None);
// if let Some((blob, _)) = shaper.shape_text_blob("This is a test ~==", font, false, 10000.0, Point::default()) {
// canvas.draw_text_blob(&blob, (50, 50), &paint);
// }
let (draw_commands, default_colors, cursor_pos) = {
let editor = editor.lock().unwrap();
(editor.build_draw_commands().clone(), editor.default_colors.clone(), editor.cursor_pos.clone())
};
canvas.clear(default_colors.background.clone().unwrap().to_color());
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for command in draw_commands {
let x = command.col_start as f32 * FONT_WIDTH;
let y = command.row as f32 * FONT_HEIGHT + FONT_HEIGHT;
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let top = y - FONT_HEIGHT * 0.8;
let width = command.text.chars().count() as f32 * FONT_WIDTH;
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let height = FONT_HEIGHT;
let region = Rect::new(x, top, x + width, top + height);
let background_paint = Paint::new(command.style.colors.background.unwrap_or(default_colors.background.clone().unwrap()), None);
canvas.draw_rect(region, &background_paint);
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let foreground_paint = Paint::new(command.style.colors.foreground.unwrap_or(default_colors.foreground.clone().unwrap()), None);
canvas.draw_str(&command.text, (x, y), &font, &foreground_paint);
}
let (cursor_grid_x, cursor_grid_y) = cursor_pos;
let cursor_x = cursor_grid_x as f32 * FONT_WIDTH;
let cursor_width = FONT_WIDTH / 8.0;
let cursor_y = cursor_grid_y as f32 * FONT_HEIGHT + FONT_HEIGHT * 0.2;
let cursor_height = FONT_HEIGHT;
let cursor = Rect::new(cursor_x, cursor_y, cursor_x + cursor_width, cursor_y + cursor_height);
let cursor_paint = Paint::new(default_colors.foreground.unwrap(), None);
canvas.draw_rect(cursor, &cursor_paint);
}
pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
let event_loop = EventLoop::<()>::with_user_event();
let logical_size = LogicalSize::new((100.0 * FONT_WIDTH) as f64, (50.0 * FONT_HEIGHT) as f64);
let visible_range = Rect {
left: 0.0,
right: logical_size.width as f32,
top: 0.0,
bottom: logical_size.height as f32
};
let scale_to_fit = ScaleToFit::Center;
let window = WindowBuilder::new()
.with_title("Neovide")
.with_inner_size(logical_size)
.build(&event_loop)
.expect("Failed to create window");
let mut renderer = RendererBuilder::new()
.use_vulkan_debug_layer(true)
.coordinate_system(CoordinateSystem::Logical)
.build(&window)
.expect("Failed to create renderer");
// icu::init();
event_loop.run(move |event, _window_target, control_flow| {
match event {
Event::WindowEvent {
event: WindowEvent::CloseRequested,
..
} => *control_flow = ControlFlow::Exit,
Event::WindowEvent {
event: WindowEvent::Resized(new_size),
..
} => {
editor.lock().unwrap().resize(
(new_size.width as f32 / FONT_WIDTH) as u16,
(new_size.height as f32 / FONT_HEIGHT) as u16
)
},
Event:: WindowEvent {
event: WindowEvent::KeyboardInput {
input,
..
},
..
} => {
if let Some(string) = construct_keybinding_string(input) {
editor.lock().unwrap().nvim.input(&string).expect("Input call failed...");
}
},
Event::EventsCleared => {
// Queue a RedrawRequested event.
window.request_redraw();
},
Event::WindowEvent {
event: WindowEvent::RedrawRequested,
..
} => {
if let Err(e) = renderer.draw(&window, |canvas, _coordinate_system_helper| {
draw(&editor, canvas);
}) {
println!("Error during draw: {:?}", e);
*control_flow = ControlFlow::Exit
}
},
_ => {}
}
})
}