File size: 6,414 Bytes
4729538 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 | use std::sync::Arc;
use std::time::Instant;
use log::info;
use winit::application::ApplicationHandler;
use winit::event::WindowEvent;
use winit::event_loop::{ActiveEventLoop, ControlFlow, EventLoop};
use winit::window::{Window, WindowId};
use spectral_core::{Config, Terminal};
use spectral_font::{Font, FontFamily, FontStyle, GlyphKey};
use spectral_render::Renderer;
struct SpectralApp {
window: Option<Arc<Window>>,
renderer: Option<Renderer>,
terminal: Terminal,
config: Config,
font_family: Option<FontFamily>,
last_render: Instant,
}
impl SpectralApp {
fn new(config: Config) -> Self {
let terminal = Terminal::new(config.clone());
Self {
window: None,
renderer: None,
terminal,
config,
font_family: None,
last_render: Instant::now(),
}
}
fn init_window(&mut self, event_loop: &ActiveEventLoop) {
let window_attrs = Window::default_attributes()
.with_title("Spectral Terminal")
.with_inner_size(winit::dpi::LogicalSize::new(800, 600));
let window = Arc::new(
event_loop.create_window(window_attrs).expect("Failed to create window"),
);
let rt = tokio::runtime::Runtime::new().unwrap();
let renderer = rt.block_on(Renderer::new(
window.clone(),
self.terminal.grid.cols as u32,
self.terminal.grid.rows as u32,
2048,
));
self.window = Some(window);
self.renderer = Some(renderer);
self.load_fonts();
}
fn load_fonts(&mut self) {
let font_names = [
&*self.config.font_family,
"Iosevka Extended", "Iosevka", "JetBrains Mono", "Fira Code", "monospace",
];
for &name in &font_names {
if let Some(font_data) = try_load_font(name) {
let mut family = FontFamily::new(name);
if let Some(font) = Font::from_bytes(0, font_data, 0, FontStyle::Regular) {
family.add_font(font);
self.font_family = Some(family);
info!("Loaded font: {}", name);
break;
}
}
}
if let Some(renderer) = &mut self.renderer {
if let Some(family) = &self.font_family {
if let Some(font) = family.get_font(FontStyle::Regular) {
let px = self.config.font_size;
for ch in (32u8..=126).map(|b| b as char) {
let glyph_id = font.lookup_glyph(ch);
let (metrics, bitmap) = font.rasterize_glyph(glyph_id, px);
let w = metrics.width as u16;
let h = metrics.height as u16;
if w > 0 && h > 0 {
let key = GlyphKey {
font_id: font.id, glyph_id,
size_bucket: (px * 4.0) as u16,
style_flags: 0,
};
let rgba = spectral_font::msdf::r8_to_rgba(&bitmap);
renderer.glyph_atlas.insert(key, w, h, &rgba);
}
}
renderer.needs_atlas_upload = true;
}
}
}
}
fn handle_input(&mut self, text: &str) {
let bytes = text.as_bytes();
self.terminal.feed(bytes);
self.request_redraw();
}
fn request_redraw(&mut self) {
if let Some(window) = &self.window {
window.request_redraw();
}
}
fn render(&mut self) {
if let Some(renderer) = &mut self.renderer {
renderer.update_atlas();
renderer.update_instances(&self.terminal);
renderer.render();
}
self.last_render = Instant::now();
}
}
fn try_load_font(name: &str) -> Option<Arc<Vec<u8>>> {
let paths = [
format!("/usr/share/fonts/truetype/{}/{}.ttf", name.to_lowercase().replace(' ', ""), name),
format!("/usr/share/fonts/TTF/{}.ttf", name.replace(' ', "")),
format!("/usr/share/fonts/truetype/{}.ttf", name.replace(' ', "")),
format!("/usr/share/fonts/{}.ttf", name),
format!("/usr/share/fonts/truetype/{}.ttf", name.to_lowercase()),
format!("/usr/share/fonts/truetype/iosevka/{}-Regular.ttf", name.replace(' ', "")),
format!("/usr/share/fonts/truetype/iosevka/{}-Regular.ttf", name.replace(" Extended", "")),
];
for path in &paths {
if let Ok(data) = std::fs::read(path) {
return Some(Arc::new(data));
}
}
if let Ok(output) = std::process::Command::new("fc-match")
.args(["-f", "%{file}", name]).output()
{
let path = String::from_utf8_lossy(&output.stdout);
let path = path.trim();
if !path.is_empty() && path != name {
if let Ok(data) = std::fs::read(path) {
return Some(Arc::new(data));
}
}
}
None
}
impl ApplicationHandler for SpectralApp {
fn resumed(&mut self, event_loop: &ActiveEventLoop) {
if self.window.is_none() { self.init_window(event_loop); }
}
fn window_event(&mut self, event_loop: &ActiveEventLoop, _window_id: WindowId, event: WindowEvent) {
match event {
WindowEvent::CloseRequested => event_loop.exit(),
WindowEvent::Resized(size) => {
if let Some(renderer) = &mut self.renderer {
renderer.resize(size.width, size.height);
}
}
WindowEvent::KeyboardInput { event, .. } => {
if event.state == winit::event::ElementState::Pressed {
if let Some(text) = event.text {
self.handle_input(&text);
}
}
}
WindowEvent::RedrawRequested => { self.render(); }
_ => {}
}
}
fn about_to_wait(&mut self, _event_loop: &ActiveEventLoop) {}
}
fn main() {
env_logger::init();
let event_loop = EventLoop::new().unwrap();
event_loop.set_control_flow(ControlFlow::Poll);
let config = Config::default();
let mut app = SpectralApp::new(config);
event_loop.run_app(&mut app).unwrap();
}
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