renderer refactor

examples/README.md

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+# Examples
+
+Run any of these examples to demonstrate a features.
+
+These examples may not be feature complete, but they should be somewhat useful and a good starting point for your own code.

examples/test_layout.py

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+from rich import print
+from rich.console import Console
+
+from textual.geometry import Offset, Region
+from textual.widgets import Placeholder
+
+
+from textual.views import WindowView
+
+p = Placeholder(height=10)
+view = WindowView(p)
+
+console = Console()
+view.layout.reflow(console, 30, 25, Offset(0, 3))
+
+print(view.layout._layout_map.widgets)
+
+console.print(view.layout.render(console))
+
+# console.print(view.layout.render(console, Region(100, 2, 10, 10)))

examples/vertical.py

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+from textual import events
+from textual.app import App
+
+from textual.views import WindowView
+from textual.widgets import Placeholder
+
+
+class MyApp(App):
+    async def on_mount(self, event: events.Mount) -> None:
+        window1 = WindowView(Placeholder(height=20))
+        # window2 = WindowView(Placeholder(height=20))
+
+        # window1.scroll_x = -10
+        # window1.scroll_y = 5
+
+        await self.view.dock(window1, edge="left")
+
+
+MyApp.run(log="textual.log")