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RenderApp

Struct RenderApp 

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pub struct RenderApp { /* private fields */ }
Expand description

渲染应用

实现 ApplicationHandler trait,管理窗口生命周期和渲染循环。 使用 winit 0.30 API 设计,提供跨平台兼容性。

§设计理念

  • 延迟初始化: 在 resumed 事件中创建窗口和渲染上下文
  • 事件驱动: 响应窗口事件和设备事件
  • ECS 集成: 持有 App 并每帧调用 update()

§示例

use anvilkit_render::window::{RenderApp, WindowConfig};
use anvilkit_render::prelude::*;
use winit::event_loop::EventLoop;

let mut app = App::new();
app.add_plugins(RenderPlugin::default());

RenderApp::run(app);

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impl RenderApp

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pub fn new(config: WindowConfig) -> Self

创建新的渲染应用

§参数
  • config: 窗口配置参数
§示例
use anvilkit_render::window::{RenderApp, WindowConfig};

let config = WindowConfig::new().with_title("我的应用");
let app = RenderApp::new(config);
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pub fn run(app: App)

ECS 驱动的入口点

创建 EventLoop、窗口,运行 winit 主循环。 每帧调用 app.update() 然后执行 GPU 渲染。

§参数
  • app: 已配置好 RenderPlugin 和系统的 ECS App
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pub fn config(&self) -> &WindowConfig

获取窗口配置

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pub fn window_state(&self) -> &WindowState

获取窗口状态

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pub fn window(&self) -> Option<&Arc<Window>>

获取窗口实例

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pub fn request_exit(&mut self)

请求退出应用

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pub fn is_exit_requested(&self) -> bool

检查是否请求退出

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pub fn render_device(&self) -> Option<&RenderDevice>

获取渲染设备(初始化后可用)

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pub fn surface_format(&self) -> Option<TextureFormat>

获取渲染表面格式(初始化后可用)

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pub fn get_current_frame(&self) -> Option<SurfaceTexture>

获取当前帧的 SurfaceTexture(用于外部渲染)

Trait Implementations§

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impl ApplicationHandler for RenderApp

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fn resumed(&mut self, event_loop: &ActiveEventLoop)

应用恢复事件

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fn window_event( &mut self, event_loop: &ActiveEventLoop, _window_id: WindowId, event: WindowEvent, )

窗口事件处理

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fn device_event( &mut self, _event_loop: &ActiveEventLoop, _device_id: DeviceId, _event: DeviceEvent, )

设备事件处理

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fn about_to_wait(&mut self, _event_loop: &ActiveEventLoop)

即将等待事件

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fn new_events(&mut self, event_loop: &ActiveEventLoop, cause: StartCause)

Emitted when new events arrive from the OS to be processed. Read more
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fn user_event(&mut self, event_loop: &ActiveEventLoop, event: T)

Emitted when an event is sent from EventLoopProxy::send_event.
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fn suspended(&mut self, event_loop: &ActiveEventLoop)

Emitted when the application has been suspended. Read more
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fn exiting(&mut self, event_loop: &ActiveEventLoop)

Emitted when the event loop is being shut down. Read more
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fn memory_warning(&mut self, event_loop: &ActiveEventLoop)

Emitted when the application has received a memory warning. Read more

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