中途改进

compositions.py

@@ -0,0 +1,57 @@
+from textual.app import App, ComposeResult
+from textual.events import Event
+from textual.widgets import Header, Footer, ListView, ListItem, Label, Static, Button
+from textual.containers import Container, Horizontal
+from textual.screen import Screen
+import pathlib
+import particles as pt
+
+class Composition():
+    def __init__(self, screen: Screen, atom):
+        self.screen = screen
+        self.atom = atom
+    def compose(self):
+        yield Label("示例标签", id="testlabel")
+        yield Button("示例按钮", id="testbtn")
+    def handler(self, event):
+        print(event.button.id)
+        self.screen.query_one("#testlabel", Label).update("hi")
+
+class Recognition(Composition):
+    def __init__(self, screen: Screen, atom):
+        pass
+
+# TEST
+
+class TestScreen(Screen):
+    def __init__(self):
+        super().__init__(name=None, id=None, classes=None)
+        self.comp = Composition(self, pt.Atom.advanced_placeholder())    
+    def compose(self) -> ComposeResult:
+        yield Header(show_clock=True)
+        yield from self.comp.compose()
+        yield Footer()
+    def on_mount(self) -> None:
+        pass
+
+    def on_button_pressed(self, event: Event) -> None:
+        self.comp.handler(event)
+
+    def action_quit_app(self) -> None:
+        self.app.exit()
+
+class AppLauncher(App):
+    CSS_PATH = "styles.tcss"
+    TITLE = '测试布局'
+    BINDINGS = [("escape", "quit", "退出"), ("d", "toggle_dark", "改变色调")]
+    SCREENS = {
+        "testscreen": TestScreen,
+    }
+
+    def on_mount(self) -> None:
+        self.action_toggle_dark()
+        self.push_screen("testscreen")
+
+if __name__ == "__main__":
+    app = AppLauncher()
+    app.run()