extract plugin crate

plugin/src/lv2_gui.rs

@@ -0,0 +1,59 @@
+use crate::*;
+use std::thread::{spawn, JoinHandle};
+use ::winit::{
+    application::ApplicationHandler,
+    event::WindowEvent,
+    event_loop::{ActiveEventLoop, ControlFlow, EventLoop},
+    window::{Window, WindowId},
+    platform::x11::EventLoopBuilderExtX11
+};
+
+//pub struct LV2PluginUI {
+    //write:      (),
+    //controller: (),
+    //widget:     (),
+    //features:   (),
+    //transfer:   (),
+//}
+
+pub fn run_lv2_ui (mut ui: LV2PluginUI) -> Usually<JoinHandle<()>> {
+    Ok(spawn(move||{
+        let event_loop = EventLoop::builder().with_x11().with_any_thread(true).build().unwrap();
+        event_loop.set_control_flow(ControlFlow::Wait);
+        event_loop.run_app(&mut ui).unwrap()
+    }))
+}
+
+/// A LV2 plugin's X11 UI.
+pub struct LV2PluginUI {
+    pub window: Option<Window>
+}
+
+impl LV2PluginUI {
+    pub fn new () -> Usually<Self> {
+        Ok(Self { window: None })
+    }
+}
+
+impl ApplicationHandler for LV2PluginUI {
+    fn resumed (&mut self, event_loop: &ActiveEventLoop) {
+        self.window = Some(event_loop.create_window(Window::default_attributes()).unwrap());
+    }
+    fn window_event (&mut self, event_loop: &ActiveEventLoop, id: WindowId, event: WindowEvent) {
+        match event {
+            WindowEvent::CloseRequested => {
+                self.window.as_ref().unwrap().set_visible(false);
+                event_loop.exit();
+            },
+            WindowEvent::RedrawRequested => {
+                self.window.as_ref().unwrap().request_redraw();
+            }
+            _ => (),
+        }
+    }
+}
+
+fn lv2_ui_instantiate (kind: &str) {
+    //let host = Suil
+}
+