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@ -1,125 +1,189 @@
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use std::borrow::Cow;
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use std::sync::{Arc, Mutex};
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use std::any::Any;
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use std::time::{Duration, Instant};
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use skulpin::{CoordinateSystem, CoordinateSystemHelper, RendererBuilder};
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use skulpin::skia_safe::{Canvas, colors, Color4f, Font, FontStyle, Point, Paint, Rect, Shaper, Typeface};
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use skulpin::skia_safe::paint::Style;
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use skulpin::skia_safe::matrix::ScaleToFit;
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use lru::LruCache;
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use skulpin::{CoordinateSystem, RendererBuilder};
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use skulpin::skia_safe::{Canvas, colors, Font, FontStyle, Paint, Point, Rect, Shaper, TextBlob, Typeface};
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use skulpin::skia_safe::icu;
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use skulpin::winit::dpi::{LogicalSize, LogicalPosition};
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use skulpin::winit::event::{ElementState, Event, MouseScrollDelta, KeyboardInput, VirtualKeyCode, WindowEvent};
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use skulpin::winit::dpi::LogicalSize;
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use skulpin::winit::event::{ElementState, Event, MouseScrollDelta, WindowEvent};
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use skulpin::winit::event_loop::{ControlFlow, EventLoop};
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use skulpin::winit::window::WindowBuilder;
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use neovim_lib::NeovimApi;
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use neovim_lib::{Neovim, NeovimApi};
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use crate::editor::{DrawCommand, Editor, Colors, CursorType};
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use crate::editor::{Editor, CursorType, Style, Colors};
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use crate::keybindings::construct_keybinding_string;
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const FONT_NAME: &str = "Delugia Nerd Font";
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const FONT_SIZE: f32 = 14.0;
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fn draw(
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editor: &Arc<Mutex<Editor>>,
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canvas: &mut Canvas,
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cursor_pos: &mut (f32, f32),
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shaper: &Shaper,
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paint: &mut Paint,
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font: &Font,
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struct CachingShaper {
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shaper: Shaper,
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cache: LruCache<String, TextBlob>
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}
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impl CachingShaper {
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pub fn new() -> CachingShaper {
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CachingShaper {
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shaper: Shaper::new(None),
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cache: LruCache::new(1000)
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}
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}
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pub fn shape(&self, text: &str, font: &Font) -> TextBlob {
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let (blob, _) = self.shaper.shape_text_blob(text, font, true, 1000.0, Point::default()).unwrap();
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blob
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}
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pub fn shape_cached(&mut self, text: String, font: &Font) -> &TextBlob {
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if !self.cache.contains(&text) {
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self.cache.put(text.clone(), self.shape(&text, &font));
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}
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self.cache.get(&text).unwrap()
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}
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}
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struct Renderer {
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editor: Arc<Mutex<Editor>>,
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paint: Paint,
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font: Font,
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shaper: CachingShaper,
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font_width: f32,
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font_height: f32
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) {
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let (draw_commands, default_colors, cursor_grid_pos, cursor_type, cursor_foreground, cursor_background, cursor_enabled) = {
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let editor = editor.lock().unwrap();
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(
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editor.build_draw_commands().clone(),
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editor.default_colors.clone(),
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editor.cursor_pos.clone(),
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editor.cursor_type.clone(),
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editor.cursor_foreground(),
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editor.cursor_background(),
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editor.cursor_enabled
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)
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};
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canvas.clear(default_colors.background.clone().unwrap().to_color());
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for command in draw_commands {
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let x = command.col_start as f32 * font_width;
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let y = command.row as f32 * font_height + font_height - font_height * 0.2;
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let top = y - font_height * 0.8;
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let width = command.text.chars().count() as f32 * font_width;
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let height = font_height;
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font_height: f32,
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cursor_pos: (f32, f32),
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previous_frame_instant: Instant
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}
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impl Renderer {
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pub fn new(editor: Arc<Mutex<Editor>>) -> Renderer {
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let paint = Paint::new(colors::WHITE, None);
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let typeface = Typeface::new(FONT_NAME, FontStyle::default()).expect("Could not load font file.");
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let font = Font::from_typeface(typeface, FONT_SIZE);
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let shaper = CachingShaper::new();
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let (_, bounds) = font.measure_str("0", Some(&paint));
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let font_width = bounds.width();
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let (_, metrics) = font.metrics();
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let font_height = metrics.descent - metrics.ascent; // bounds.height() * 1.68;
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let cursor_pos = (0.0, 0.0);
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let previous_frame_instant = Instant::now();
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Renderer { editor, paint, font, shaper, font_width, font_height, cursor_pos, previous_frame_instant }
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}
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fn draw_text(&mut self, canvas: &mut Canvas, text: &str, grid_pos: (u64, u64), style: &Style, default_colors: &Colors, update_cache: bool) {
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let (grid_x, grid_y) = grid_pos;
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let x = grid_x as f32 * self.font_width;
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let y = grid_y as f32 * self.font_height + self.font_height - self.font_height * 0.2;
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let top = y - self.font_height * 0.8;
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let width = text.chars().count() as f32 * self.font_width;
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let height = self.font_height;
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let region = Rect::new(x, top, x + width, top + height);
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paint.set_color(command.style.background(&default_colors).to_color());
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canvas.draw_rect(region, &paint);
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self.paint.set_color(style.background(default_colors).to_color());
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canvas.draw_rect(region, &self.paint);
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if command.style.underline || command.style.undercurl {
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let (_, metrics) = font.metrics();
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let width = command.text.chars().count() as f32 * font_width;
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if style.underline || style.undercurl {
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let (_, metrics) = self.font.metrics();
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let width = text.chars().count() as f32 * self.font_width;
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let underline_position = metrics.underline_position().unwrap();
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paint.set_color(command.style.special(&default_colors).to_color());
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canvas.draw_line((x, y + underline_position), (x + width, y + underline_position), &paint);
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self.paint.set_color(style.special(&default_colors).to_color());
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canvas.draw_line((x, y + underline_position), (x + width, y + underline_position), &self.paint);
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}
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paint.set_color(command.style.foreground(&default_colors).to_color());
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let text = command.text.trim_end();
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canvas.draw_str(text, (x, y), &font, &paint);
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// if text.len() > 0 {
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// if let Some((blob, _)) = shaper.shape_text_blob(&text, font, false, 10000.0, Point::default()) {
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// canvas.draw_text_blob(&blob, (x, top), &paint);
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// }
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// }
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self.paint.set_color(style.foreground(&default_colors).to_color());
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let text = text.trim_end();
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//canvas.draw_str(text, (x, y), &font, &paint);
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if text.len() > 0 {
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let reference;
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let blob = if update_cache {
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self.shaper.shape_cached(text.to_string(), &self.font)
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} else {
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reference = self.shaper.shape(text, &self.font);
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&reference
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};
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canvas.draw_text_blob(blob, (x, top), &self.paint);
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}
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}
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let (cursor_grid_x, cursor_grid_y) = cursor_grid_pos;
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let target_cursor_x = cursor_grid_x as f32 * font_width;
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let target_cursor_y = cursor_grid_y as f32 * font_height;
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let (previous_cursor_x, previous_cursor_y) = cursor_pos;
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pub fn draw(&mut self, canvas: &mut Canvas) {
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let (draw_commands, default_colors, cursor_grid_pos, cursor_type, cursor_foreground, cursor_background, cursor_enabled) = {
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let editor = self.editor.lock().unwrap();
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(
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editor.build_draw_commands().clone(),
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editor.default_colors.clone(),
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editor.cursor_pos.clone(),
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editor.cursor_type.clone(),
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editor.cursor_foreground(),
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editor.cursor_background(),
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editor.cursor_enabled
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)
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};
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let cursor_x = (target_cursor_x - *previous_cursor_x) * 0.5 + *previous_cursor_x;
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let cursor_y = (target_cursor_y - *previous_cursor_y) * 0.5 + *previous_cursor_y;
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canvas.clear(default_colors.background.clone().unwrap().to_color());
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*cursor_pos = (cursor_x, cursor_y);
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if cursor_enabled {
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let cursor_width = match cursor_type {
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CursorType::Vertical => font_width / 8.0,
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CursorType::Horizontal | CursorType::Block => font_width
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};
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let cursor_height = match cursor_type {
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CursorType::Horizontal => font_width / 8.0,
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CursorType::Vertical | CursorType::Block => font_height
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};
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let cursor = Rect::new(cursor_x, cursor_y, cursor_x + cursor_width, cursor_y + cursor_height);
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paint.set_color(cursor_background.to_color());
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canvas.draw_rect(cursor, &paint);
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if let CursorType::Block = cursor_type {
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paint.set_color(cursor_foreground.to_color());
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let editor = editor.lock().unwrap();
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let character = editor.grid[cursor_grid_y as usize][cursor_grid_x as usize].clone()
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.map(|(character, _)| character)
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.unwrap_or(' ');
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let text_y = cursor_y + font_height - font_height * 0.2;
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canvas.draw_str(character.to_string(), (cursor_x, text_y), &font, &paint);
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for command in draw_commands {
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self.draw_text(canvas, &command.text, command.grid_position, &command.style, &default_colors, true);
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}
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}
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}
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pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
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let shaper = Shaper::new(None);
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let typeface = Typeface::new(FONT_NAME, FontStyle::default()).expect("Could not load font file.");
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let font = Font::from_typeface(typeface, FONT_SIZE);
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let mut paint = Paint::new(colors::WHITE, None);
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let (cursor_grid_x, cursor_grid_y) = cursor_grid_pos;
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let target_cursor_x = cursor_grid_x as f32 * self.font_width;
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let target_cursor_y = cursor_grid_y as f32 * self.font_height;
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let (previous_cursor_x, previous_cursor_y) = self.cursor_pos;
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let cursor_x = (target_cursor_x - previous_cursor_x) * 0.5 + previous_cursor_x;
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let cursor_y = (target_cursor_y - previous_cursor_y) * 0.5 + previous_cursor_y;
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let (width, bounds) = font.measure_str("0", Some(&paint));
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let font_width = width;
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let font_height = bounds.height() * 1.68;
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self.cursor_pos = (cursor_x, cursor_y);
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if cursor_enabled {
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let cursor_width = match cursor_type {
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CursorType::Vertical => self.font_width / 8.0,
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CursorType::Horizontal | CursorType::Block => self.font_width
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};
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let cursor_height = match cursor_type {
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CursorType::Horizontal => self.font_width / 8.0,
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CursorType::Vertical | CursorType::Block => self.font_height
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};
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let cursor = Rect::new(cursor_x, cursor_y, cursor_x + cursor_width, cursor_y + cursor_height);
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self.paint.set_color(cursor_background.to_color());
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canvas.draw_rect(cursor, &self.paint);
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if let CursorType::Block = cursor_type {
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self.paint.set_color(cursor_foreground.to_color());
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let editor = self.editor.lock().unwrap();
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let character = editor.grid[cursor_grid_y as usize][cursor_grid_x as usize].clone()
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.map(|(character, _)| character)
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.unwrap_or(' ');
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let text_y = cursor_y + self.font_height - self.font_height * 0.2;
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canvas.draw_text_blob(
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self.shaper.shape_cached(character.to_string(), &self.font),
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(cursor_x, text_y), &self.paint);
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}
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}
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}
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}
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pub fn ui_loop(editor: Arc<Mutex<Editor>>, nvim: Neovim, initial_size: (u64, u64)) {
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let mut nvim = nvim;
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let mut renderer = Renderer::new(editor);
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let event_loop = EventLoop::<()>::with_user_event();
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let logical_size = LogicalSize::new((100.0 * font_width) as f64, (50.0 * font_height) as f64);
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let (width, height) = initial_size;
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let logical_size = LogicalSize::new(
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(width as f32 * renderer.font_width) as f64,
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// Add 1.0 here to make sure resizing horizontally doesn't change the grid height
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(height as f32 * renderer.font_height + 1.0) as f64
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);
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let window = WindowBuilder::new()
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.with_title("Neovide")
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@ -127,13 +191,11 @@ pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
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.build(&event_loop)
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.expect("Failed to create window");
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let mut renderer = RendererBuilder::new()
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let mut skulpin_renderer = RendererBuilder::new()
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.coordinate_system(CoordinateSystem::Logical)
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.prefer_mailbox_present_mode()
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.build(&window)
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.expect("Failed to create renderer");
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let mut cursor_pos = (0.0, 0.0);
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let mut mouse_down = false;
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let mut mouse_pos = (0, 0);
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@ -151,10 +213,9 @@ pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
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..
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} => {
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if new_size.width > 0.0 && new_size.height > 0.0 {
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editor.lock().unwrap().resize(
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(new_size.width as f32 / font_width) as u64,
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(new_size.height as f32 / font_height) as u64
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)
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let new_width = (new_size.width as f32 / renderer.font_width) as u64;
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let new_height = (new_size.height as f32 / renderer.font_height) as u64;
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nvim.ui_try_resize(new_width as i64, new_height as i64).expect("Resize failed");
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}
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},
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@ -166,7 +227,7 @@ pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
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..
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} => {
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if let Some(string) = construct_keybinding_string(input) {
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editor.lock().unwrap().nvim.input(&string).expect("Input call failed...");
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nvim.input(&string).expect("Input call failed...");
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}
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},
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@ -177,11 +238,11 @@ pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
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},
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..
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} => {
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let grid_x = (position.x as f32 / font_width) as i64;
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let grid_y = (position.y as f32 / font_height) as i64;
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let grid_x = (position.x as f32 / renderer.font_width) as i64;
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let grid_y = (position.y as f32 / renderer.font_height) as i64;
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mouse_pos = (grid_x, grid_y);
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if mouse_down {
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editor.lock().unwrap().nvim.input_mouse("left", "drag", "", 0, grid_y, grid_x);
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nvim.input_mouse("left", "drag", "", 0, grid_y, grid_x).expect("Could not send mouse input");
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}
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}
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@ -203,7 +264,7 @@ pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
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}
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};
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let (grid_x, grid_y) = mouse_pos;
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editor.lock().unwrap().nvim.input_mouse("left", input_type, "", 0, grid_y, grid_x);
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nvim.input_mouse("left", input_type, "", 0, grid_y, grid_x).expect("Could not send mouse input");
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}
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Event::WindowEvent {
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@ -219,7 +280,7 @@ pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
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"down"
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};
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let (grid_x, grid_y) = mouse_pos;
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editor.lock().unwrap().nvim.input_mouse("wheel", input_type, "", 0, grid_y, grid_x);
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nvim.input_mouse("wheel", input_type, "", 0, grid_y, grid_x).expect("Could not send mouse input");
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}
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Event::EventsCleared => {
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@ -230,8 +291,8 @@ pub fn ui_loop(editor: Arc<Mutex<Editor>>) {
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|
|
event: WindowEvent::RedrawRequested,
|
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|
|
|
..
|
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|
} => {
|
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|
if let Err(e) = renderer.draw(&window, |canvas, _coordinate_system_helper| {
|
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|
|
draw(&editor, canvas, &mut cursor_pos, &shaper, &mut paint, &font, font_width, font_height);
|
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|
if let Err(e) = skulpin_renderer.draw(&window, |canvas, _coordinate_system_helper| {
|
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|
|
renderer.draw(canvas);
|
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|
|
}) {
|
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|
|
println!("Error during draw: {:?}", e);
|
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|
|
*control_flow = ControlFlow::Exit
|
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keith
5 years ago