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refactor somewhat

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macos-click-through
keith 5 years ago
parent d4a7e32c66
commit be7c9f5207
7 changed files with 606 additions and 224 deletions
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380
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2
Cargo.toml
Unescape Escape View File

@ -5,6 +5,8 @@ authors = ["keith <keith@the-simmons.net>"]
edition = "2018"
[dependencies]
euclid = "0.20.7"
font-kit = "0.5.0"
lru = "0.4.3"
skulpin = { git = "https://github.com/Kethku/skulpin" }
derive-new = "0.5"

11
src/main.rs
Unescape Escape View File

@ -1,21 +1,18 @@
#![windows_subsystem = "windows"]
// #![windows_subsystem = "windows"]
mod editor;
mod events;
mod window;
mod keybindings;
mod renderer;
#[macro_use] extern crate derive_new;
use std::panic;
use std::process::{Command, Stdio, exit};
use std::sync::mpsc::Receiver;
use std::process::{Command, Stdio};
use std::sync::{Arc, Mutex};
use std::thread;
use env_logger::Env as LoggerEnv;
use neovim_lib::{Neovim, UiAttachOptions, Session};
use rmpv::Value;
use window::ui_loop;
use editor::Editor;
@ -71,7 +68,7 @@ fn start_nvim(editor: Arc<Mutex<Editor>>) -> Neovim {
// Quit process when nvim exits
thread::spawn(move || {
join_handle.join();
join_handle.join().expect("Could not join neovim process...");
std::process::exit(0);
});

29
src/renderer/caching_shaper.rs
Unescape Escape View File

@ -0,0 +1,29 @@
use lru::LruCache;
use skulpin::skia_safe::{Shaper, TextBlob, Font, Point};
pub struct CachingShaper {
shaper: Shaper,
cache: LruCache<String, TextBlob>
}
impl CachingShaper {
pub fn new() -> CachingShaper {
CachingShaper {
shaper: Shaper::new(None),
cache: LruCache::new(1000)
}
}
pub fn shape(&self, text: &str, font: &Font) -> TextBlob {
let (blob, _) = self.shaper.shape_text_blob(text, font, true, 1000000.0, Point::default()).unwrap();
blob
}
pub fn shape_cached(&mut self, text: String, font: &Font) -> &TextBlob {
if !self.cache.contains(&text) {
self.cache.put(text.clone(), self.shape(&text, &font));
}
self.cache.get(&text).unwrap()
}
}

28
src/renderer/fps_tracker.rs
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@ -0,0 +1,28 @@
use std::time::Instant;
pub struct FpsTracker {
last_record_time: Instant,
frame_count: usize,
pub fps: usize
}
impl FpsTracker {
pub fn new() -> FpsTracker {
FpsTracker {
fps: 0,
last_record_time: Instant::now(),
frame_count: 0
}
}
pub fn record_frame(&mut self) {
self.frame_count = self.frame_count + 1;
let now = Instant::now();
let time_since = (now - self.last_record_time).as_secs_f32();
if time_since > 1.0 {
self.fps = self.frame_count;
self.last_record_time = now;
self.frame_count = 0;
}
}
}

153
src/renderer/mod.rs
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@ -0,0 +1,153 @@
use std::sync::{Arc, Mutex};
use skulpin::skia_safe::{Canvas, Paint, Rect, Typeface, Font, FontStyle, colors};
mod caching_shaper;
mod fps_tracker;
mod font_measurer;
use caching_shaper::CachingShaper;
use fps_tracker::FpsTracker;
use crate::editor::{Editor, CursorType, Style, Colors};
const FONT_NAME: &str = "Delugia Nerd Font";
const FONT_SIZE: f32 = 14.0;
pub struct Renderer {
editor: Arc<Mutex<Editor>>,
paint: Paint,
font: Font,
shaper: CachingShaper,
pub font_width: f32,
pub font_height: f32,
cursor_pos: (f32, f32),
fps_tracker: FpsTracker
}
impl Renderer {
pub fn new(editor: Arc<Mutex<Editor>>) -> Renderer {
let paint = Paint::new(colors::WHITE, None);
let typeface = Typeface::new(FONT_NAME, FontStyle::default()).expect("Could not load font file.");
let font = Font::from_typeface(typeface, FONT_SIZE);
let shaper = CachingShaper::new();
let (_, bounds) = font.measure_str("0", Some(&paint));
let font_width = bounds.width();
let (_, metrics) = font.metrics();
let font_height = metrics.descent - metrics.ascent;
let cursor_pos = (0.0, 0.0);
let fps_tracker = FpsTracker::new();
Renderer { editor, paint, font, shaper, font_width, font_height, cursor_pos, fps_tracker }
}
fn draw_background(&mut self, canvas: &mut Canvas, text: &str, grid_pos: (u64, u64), style: &Style, default_colors: &Colors) {
let (grid_x, grid_y) = grid_pos;
let x = grid_x as f32 * self.font_width;
let y = grid_y as f32 * self.font_height;
let width = text.chars().count() as f32 * self.font_width;
let height = self.font_height;
let region = Rect::new(x, y, x + width, y + height);
self.paint.set_color(style.background(default_colors).to_color());
canvas.draw_rect(region, &self.paint);
}
fn draw_foreground(&mut self, canvas: &mut Canvas, text: &str, grid_pos: (u64, u64), style: &Style, default_colors: &Colors, update_cache: bool) {
let (grid_x, grid_y) = grid_pos;
let x = grid_x as f32 * self.font_width;
let y = grid_y as f32 * self.font_height;
let width = text.chars().count() as f32 * self.font_width;
if style.underline || style.undercurl {
let (_, metrics) = self.font.metrics();
let line_position = metrics.underline_position().unwrap();
self.paint.set_color(style.special(&default_colors).to_color());
canvas.draw_line((x, y - line_position + self.font_height), (x + width, y - line_position + self.font_height), &self.paint);
}
self.paint.set_color(style.foreground(&default_colors).to_color());
let text = text.trim_end();
if text.len() > 0 {
let reference;
let blob = if update_cache {
self.shaper.shape_cached(text.to_string(), &self.font)
} else {
reference = self.shaper.shape(text, &self.font);
&reference
};
canvas.draw_text_blob(blob, (x, y), &self.paint);
}
}
fn draw_text(&mut self, canvas: &mut Canvas, text: &str, grid_pos: (u64, u64), style: &Style, default_colors: &Colors, update_cache: bool) {
self.draw_background(canvas, text, grid_pos, style, default_colors);
self.draw_foreground(canvas, text, grid_pos, style, default_colors, update_cache);
}
pub fn draw(&mut self, canvas: &mut Canvas) {
let (draw_commands, default_colors, (width, height), cursor_grid_pos, cursor_type, cursor_foreground, cursor_background, cursor_enabled) = {
let editor = self.editor.lock().unwrap();
(
editor.build_draw_commands().clone(),
editor.default_colors.clone(),
editor.size.clone(),
editor.cursor_pos.clone(),
editor.cursor_type.clone(),
editor.cursor_foreground(),
editor.cursor_background(),
editor.cursor_enabled
)
};
canvas.clear(default_colors.background.clone().unwrap().to_color());
for command in draw_commands.iter() {
self.draw_background(canvas, &command.text, command.grid_position.clone(), &command.style, &default_colors);
}
for command in draw_commands {
self.draw_foreground(canvas, &command.text, command.grid_position.clone(), &command.style, &default_colors, true);
}
self.fps_tracker.record_frame();
self.draw_text(canvas, &self.fps_tracker.fps.to_string(), (width - 2, height - 1), &Style::new(default_colors.clone()), &default_colors, false);
let (cursor_grid_x, cursor_grid_y) = cursor_grid_pos;
let target_cursor_x = cursor_grid_x as f32 * self.font_width;
let target_cursor_y = cursor_grid_y as f32 * self.font_height;
let (previous_cursor_x, previous_cursor_y) = self.cursor_pos;
let cursor_x = (target_cursor_x - previous_cursor_x) * 0.5 + previous_cursor_x;
let cursor_y = (target_cursor_y - previous_cursor_y) * 0.5 + previous_cursor_y;
self.cursor_pos = (cursor_x, cursor_y);
if cursor_enabled {
let cursor_width = match cursor_type {
CursorType::Vertical => self.font_width / 8.0,
CursorType::Horizontal | CursorType::Block => self.font_width
};
let cursor_height = match cursor_type {
CursorType::Horizontal => self.font_width / 8.0,
CursorType::Vertical | CursorType::Block => self.font_height
};
let cursor = Rect::new(cursor_x, cursor_y, cursor_x + cursor_width, cursor_y + cursor_height);
self.paint.set_color(cursor_background.to_color());
canvas.draw_rect(cursor, &self.paint);
if let CursorType::Block = cursor_type {
self.paint.set_color(cursor_foreground.to_color());
let editor = self.editor.lock().unwrap();
let character = editor.grid[cursor_grid_y as usize][cursor_grid_x as usize].clone()
.map(|(character, _)| character)
.unwrap_or(' ');
canvas.draw_text_blob(
self.shaper.shape_cached(character.to_string(), &self.font),
(cursor_x, cursor_y), &self.paint);
}
}
}
}

227
src/window.rs
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@ -1,230 +1,18 @@
use std::sync::{Arc, Mutex};
use std::time::Instant;
use lru::LruCache;
use skulpin::{CoordinateSystem, RendererBuilder};
use skulpin::skia_safe::{Canvas, colors, Font, FontStyle, Paint, Point, Rect, Shaper, TextBlob, Typeface};
use skulpin::skia_safe::icu;
use skulpin::winit::dpi::LogicalSize;
use skulpin::winit::event::{ElementState, Event, MouseScrollDelta, WindowEvent};
use skulpin::winit::event_loop::{ControlFlow, EventLoop};
use skulpin::winit::window::{Window, WindowBuilder};
use skulpin::winit::window::WindowBuilder;
use neovim_lib::{Neovim, NeovimApi};
use crate::editor::{Editor, CursorType, Style, Colors};
use crate::editor::Editor;
use crate::keybindings::construct_keybinding_string;
const FONT_NAME: &str = "Delugia Nerd Font";
const FONT_SIZE: f32 = 14.0;
struct CachingShaper {
shaper: Shaper,
cache: LruCache<String, TextBlob>
}
impl CachingShaper {
pub fn new() -> CachingShaper {
CachingShaper {
shaper: Shaper::new(None),
cache: LruCache::new(1000)
}
}
pub fn shape(&self, text: &str, font: &Font) -> TextBlob {
let (blob, _) = self.shaper.shape_text_blob(text, font, true, 1000000.0, Point::default()).unwrap();
blob
}
pub fn shape_cached(&mut self, text: String, font: &Font) -> &TextBlob {
if !self.cache.contains(&text) {
self.cache.put(text.clone(), self.shape(&text, &font));
}
self.cache.get(&text).unwrap()
}
}
struct FpsTracker {
last_record_time: Instant,
frame_count: usize,
fps: usize
}
impl FpsTracker {
pub fn new() -> FpsTracker {
FpsTracker {
fps: 0,
last_record_time: Instant::now(),
frame_count: 0
}
}
pub fn record_frame(&mut self) {
self.frame_count = self.frame_count + 1;
let now = Instant::now();
let time_since = (now - self.last_record_time).as_secs_f32();
if time_since > 1.0 {
self.fps = self.frame_count;
self.last_record_time = now;
self.frame_count = 0;
}
}
}
struct Renderer {
editor: Arc<Mutex<Editor>>,
title: String,
paint: Paint,
font: Font,
shaper: CachingShaper,
font_width: f32,
font_height: f32,
cursor_pos: (f32, f32),
fps_tracker: FpsTracker
}
impl Renderer {
pub fn new(editor: Arc<Mutex<Editor>>) -> Renderer {
let title = "".to_string();
let paint = Paint::new(colors::WHITE, None);
let typeface = Typeface::new(FONT_NAME, FontStyle::default()).expect("Could not load font file.");
let font = Font::from_typeface(typeface, FONT_SIZE);
let shaper = CachingShaper::new();
let (_, bounds) = font.measure_str("0", Some(&paint));
let font_width = bounds.width();
let (_, metrics) = font.metrics();
let font_height = metrics.descent - metrics.ascent;
let cursor_pos = (0.0, 0.0);
let fps_tracker = FpsTracker::new();
Renderer { editor, title, paint, font, shaper, font_width, font_height, cursor_pos, fps_tracker }
}
fn draw_background(&mut self, canvas: &mut Canvas, text: &str, grid_pos: (u64, u64), style: &Style, default_colors: &Colors) {
let (grid_x, grid_y) = grid_pos;
let x = grid_x as f32 * self.font_width;
let y = grid_y as f32 * self.font_height;
let width = text.chars().count() as f32 * self.font_width;
let height = self.font_height;
let region = Rect::new(x, y, x + width, y + height);
self.paint.set_color(style.background(default_colors).to_color());
canvas.draw_rect(region, &self.paint);
}
fn draw_foreground(&mut self, canvas: &mut Canvas, text: &str, grid_pos: (u64, u64), style: &Style, default_colors: &Colors, update_cache: bool) {
let (grid_x, grid_y) = grid_pos;
let x = grid_x as f32 * self.font_width;
let y = grid_y as f32 * self.font_height;
let width = text.chars().count() as f32 * self.font_width;
if style.underline || style.undercurl {
let (_, metrics) = self.font.metrics();
let line_position = metrics.underline_position().unwrap();
self.paint.set_color(style.special(&default_colors).to_color());
canvas.draw_line((x, y - line_position + self.font_height), (x + width, y - line_position + self.font_height), &self.paint);
}
self.paint.set_color(style.foreground(&default_colors).to_color());
let text = text.trim_end();
if text.len() > 0 {
let reference;
let blob = if update_cache {
self.shaper.shape_cached(text.to_string(), &self.font)
} else {
reference = self.shaper.shape(text, &self.font);
&reference
};
canvas.draw_text_blob(blob, (x, y), &self.paint);
}
}
fn draw_text(&mut self, canvas: &mut Canvas, text: &str, grid_pos: (u64, u64), style: &Style, default_colors: &Colors, update_cache: bool) {
self.draw_background(canvas, text, grid_pos, style, default_colors);
self.draw_foreground(canvas, text, grid_pos, style, default_colors, update_cache);
}
pub fn draw(&mut self, window: &Window, canvas: &mut Canvas) {
let (draw_commands, title, default_colors, (width, height), cursor_grid_pos, cursor_type, cursor_foreground, cursor_background, cursor_enabled) = {
let editor = self.editor.lock().unwrap();
(
editor.build_draw_commands().clone(),
editor.title.clone(),
editor.default_colors.clone(),
editor.size.clone(),
editor.cursor_pos.clone(),
editor.cursor_type.clone(),
editor.cursor_foreground(),
editor.cursor_background(),
editor.cursor_enabled
)
};
canvas.clear(default_colors.background.clone().unwrap().to_color());
for command in draw_commands.iter() {
self.draw_background(canvas, &command.text, command.grid_position.clone(), &command.style, &default_colors);
}
for command in draw_commands {
self.draw_foreground(canvas, &command.text, command.grid_position.clone(), &command.style, &default_colors, true);
}
self.fps_tracker.record_frame();
self.draw_text(canvas, &self.fps_tracker.fps.to_string(), (width - 2, height - 1), &Style::new(default_colors.clone()), &default_colors, false);
let (cursor_grid_x, cursor_grid_y) = cursor_grid_pos;
let target_cursor_x = cursor_grid_x as f32 * self.font_width;
let target_cursor_y = cursor_grid_y as f32 * self.font_height;
let (previous_cursor_x, previous_cursor_y) = self.cursor_pos;
let cursor_x = (target_cursor_x - previous_cursor_x) * 0.5 + previous_cursor_x;
let cursor_y = (target_cursor_y - previous_cursor_y) * 0.5 + previous_cursor_y;
self.cursor_pos = (cursor_x, cursor_y);
if cursor_enabled {
let cursor_width = match cursor_type {
CursorType::Vertical => self.font_width / 8.0,
CursorType::Horizontal | CursorType::Block => self.font_width
};
let cursor_height = match cursor_type {
CursorType::Horizontal => self.font_width / 8.0,
CursorType::Vertical | CursorType::Block => self.font_height
};
let cursor = Rect::new(cursor_x, cursor_y, cursor_x + cursor_width, cursor_y + cursor_height);
self.paint.set_color(cursor_background.to_color());
canvas.draw_rect(cursor, &self.paint);
if let CursorType::Block = cursor_type {
self.paint.set_color(cursor_foreground.to_color());
let editor = self.editor.lock().unwrap();
let character = editor.grid[cursor_grid_y as usize][cursor_grid_x as usize].clone()
.map(|(character, _)| character)
.unwrap_or(' ');
canvas.draw_text_blob(
self.shaper.shape_cached(character.to_string(), &self.font),
(cursor_x, cursor_y), &self.paint);
}
}
if self.title != title {
window.set_title(&title);
self.title = title;
}
}
}
use crate::renderer::Renderer;
pub fn ui_loop(editor: Arc<Mutex<Editor>>, nvim: Neovim, initial_size: (u64, u64)) {
let mut nvim = nvim;
let mut renderer = Renderer::new(editor);
let mut renderer = Renderer::new(editor.clone());
let event_loop = EventLoop::<()>::with_user_event();
let (width, height) = initial_size;
@ -345,8 +133,13 @@ pub fn ui_loop(editor: Arc<Mutex<Editor>>, nvim: Neovim, initial_size: (u64, u64
event: WindowEvent::RedrawRequested,
..
} => {
{
let editor = editor.lock().unwrap();
window.set_title(&editor.title);
};
if let Err(e) = skulpin_renderer.draw(&window, |canvas, _coordinate_system_helper| {
renderer.draw(&window, canvas);
renderer.draw(canvas);
}) {
println!("Error during draw: {:?}", e);
*control_flow = ControlFlow::Exit

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