mirror of
https://github.com/bevyengine/bevy
synced 2024-12-23 03:23:20 +00:00
233 lines
8.5 KiB
Rust
233 lines
8.5 KiB
Rust
use bevy_math::IVec2;
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use bevy_utils::HashMap;
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use bevy_window::{Window, WindowDescriptor, WindowId, WindowMode};
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use raw_window_handle::HasRawWindowHandle;
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use winit::dpi::LogicalSize;
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#[derive(Debug, Default)]
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pub struct WinitWindows {
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pub windows: HashMap<winit::window::WindowId, winit::window::Window>,
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pub window_id_to_winit: HashMap<WindowId, winit::window::WindowId>,
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pub winit_to_window_id: HashMap<winit::window::WindowId, WindowId>,
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}
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impl WinitWindows {
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pub fn create_window(
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&mut self,
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event_loop: &winit::event_loop::EventLoopWindowTarget<()>,
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window_id: WindowId,
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window_descriptor: &WindowDescriptor,
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) -> Window {
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#[cfg(target_os = "windows")]
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let mut winit_window_builder = {
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use winit::platform::windows::WindowBuilderExtWindows;
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winit::window::WindowBuilder::new().with_drag_and_drop(false)
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};
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#[cfg(not(target_os = "windows"))]
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let mut winit_window_builder = winit::window::WindowBuilder::new();
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winit_window_builder = match window_descriptor.mode {
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WindowMode::BorderlessFullscreen => winit_window_builder.with_fullscreen(Some(
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winit::window::Fullscreen::Borderless(event_loop.primary_monitor()),
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)),
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WindowMode::Fullscreen { use_size } => winit_window_builder.with_fullscreen(Some(
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winit::window::Fullscreen::Exclusive(match use_size {
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true => get_fitting_videomode(
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&event_loop.primary_monitor().unwrap(),
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window_descriptor.width as u32,
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window_descriptor.height as u32,
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),
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false => get_best_videomode(&event_loop.primary_monitor().unwrap()),
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}),
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)),
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_ => {
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let WindowDescriptor {
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width,
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height,
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position,
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scale_factor_override,
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..
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} = window_descriptor;
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if let Some(position) = position {
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if let Some(sf) = scale_factor_override {
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winit_window_builder = winit_window_builder.with_position(
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winit::dpi::LogicalPosition::new(
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position[0] as f64,
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position[1] as f64,
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)
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.to_physical::<f64>(*sf),
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);
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} else {
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winit_window_builder =
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winit_window_builder.with_position(winit::dpi::LogicalPosition::new(
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position[0] as f64,
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position[1] as f64,
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));
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}
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}
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if let Some(sf) = scale_factor_override {
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winit_window_builder.with_inner_size(
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winit::dpi::LogicalSize::new(*width, *height).to_physical::<f64>(*sf),
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)
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} else {
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winit_window_builder
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.with_inner_size(winit::dpi::LogicalSize::new(*width, *height))
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}
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}
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.with_resizable(window_descriptor.resizable)
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.with_decorations(window_descriptor.decorations),
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};
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let constraints = window_descriptor.resize_constraints.check_constraints();
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let min_inner_size = LogicalSize {
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width: constraints.min_width,
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height: constraints.min_height,
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};
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let max_inner_size = LogicalSize {
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width: constraints.max_width,
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height: constraints.max_height,
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};
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let winit_window_builder =
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if constraints.max_width.is_finite() && constraints.max_height.is_finite() {
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winit_window_builder
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.with_min_inner_size(min_inner_size)
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.with_max_inner_size(max_inner_size)
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} else {
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winit_window_builder.with_min_inner_size(min_inner_size)
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};
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#[allow(unused_mut)]
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let mut winit_window_builder = winit_window_builder.with_title(&window_descriptor.title);
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#[cfg(target_arch = "wasm32")]
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{
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use wasm_bindgen::JsCast;
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use winit::platform::web::WindowBuilderExtWebSys;
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if let Some(selector) = &window_descriptor.canvas {
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let window = web_sys::window().unwrap();
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let document = window.document().unwrap();
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let canvas = document
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.query_selector(&selector)
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.expect("Cannot query for canvas element.");
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if let Some(canvas) = canvas {
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let canvas = canvas.dyn_into::<web_sys::HtmlCanvasElement>().ok();
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winit_window_builder = winit_window_builder.with_canvas(canvas);
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} else {
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panic!("Cannot find element: {}.", selector);
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}
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}
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}
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let winit_window = winit_window_builder.build(event_loop).unwrap();
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match winit_window.set_cursor_grab(window_descriptor.cursor_locked) {
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Ok(_) => {}
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Err(winit::error::ExternalError::NotSupported(_)) => {}
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Err(err) => Err(err).unwrap(),
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}
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winit_window.set_cursor_visible(window_descriptor.cursor_visible);
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self.window_id_to_winit.insert(window_id, winit_window.id());
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self.winit_to_window_id.insert(winit_window.id(), window_id);
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#[cfg(target_arch = "wasm32")]
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{
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use winit::platform::web::WindowExtWebSys;
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if window_descriptor.canvas.is_none() {
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let canvas = winit_window.canvas();
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let window = web_sys::window().unwrap();
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let document = window.document().unwrap();
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let body = document.body().unwrap();
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body.append_child(&canvas)
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.expect("Append canvas to HTML body.");
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}
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}
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let position = winit_window
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.outer_position()
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.ok()
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.map(|position| IVec2::new(position.x, position.y));
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let inner_size = winit_window.inner_size();
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let scale_factor = winit_window.scale_factor();
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let raw_window_handle = winit_window.raw_window_handle();
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self.windows.insert(winit_window.id(), winit_window);
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Window::new(
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window_id,
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window_descriptor,
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inner_size.width,
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inner_size.height,
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scale_factor,
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position,
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raw_window_handle,
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)
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}
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pub fn get_window(&self, id: WindowId) -> Option<&winit::window::Window> {
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self.window_id_to_winit
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.get(&id)
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.and_then(|id| self.windows.get(id))
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}
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pub fn get_window_id(&self, id: winit::window::WindowId) -> Option<WindowId> {
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self.winit_to_window_id.get(&id).cloned()
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}
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}
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pub fn get_fitting_videomode(
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monitor: &winit::monitor::MonitorHandle,
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width: u32,
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height: u32,
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) -> winit::monitor::VideoMode {
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let mut modes = monitor.video_modes().collect::<Vec<_>>();
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fn abs_diff(a: u32, b: u32) -> u32 {
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if a > b {
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return a - b;
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}
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b - a
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}
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modes.sort_by(|a, b| {
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use std::cmp::Ordering::*;
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match abs_diff(a.size().width, width).cmp(&abs_diff(b.size().width, width)) {
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Equal => {
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match abs_diff(a.size().height, height).cmp(&abs_diff(b.size().height, height)) {
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Equal => b.refresh_rate().cmp(&a.refresh_rate()),
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default => default,
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}
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}
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default => default,
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}
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});
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modes.first().unwrap().clone()
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}
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pub fn get_best_videomode(monitor: &winit::monitor::MonitorHandle) -> winit::monitor::VideoMode {
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let mut modes = monitor.video_modes().collect::<Vec<_>>();
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modes.sort_by(|a, b| {
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use std::cmp::Ordering::*;
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match b.size().width.cmp(&a.size().width) {
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Equal => match b.size().height.cmp(&a.size().height) {
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Equal => b.refresh_rate().cmp(&a.refresh_rate()),
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default => default,
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},
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default => default,
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}
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});
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modes.first().unwrap().clone()
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}
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// WARNING: this only works under the assumption that wasm runtime is single threaded
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#[cfg(target_arch = "wasm32")]
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unsafe impl Send for WinitWindows {}
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#[cfg(target_arch = "wasm32")]
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unsafe impl Sync for WinitWindows {}
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