ui: runtime-scaled layout for 640x480 and 720x720 displays

tests/test_sdl_app.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import ctypes
 from queue import Queue
 
 from r36s_dlna_browser.dlna.browser_state import BrowserState
@@ -12,12 +13,13 @@ from r36s_dlna_browser.ui.sdl_app import SDLApp, Screen
 class DummyPlayer:
     def __init__(self) -> None:
         self._new_frame = False
+        self.viewport = None
 
     def attach_window(self, _window) -> None:
         pass
 
-    def set_viewport(self, *_args) -> None:
-        pass
+    def set_viewport(self, *args) -> None:
+        self.viewport = args
 
     def has_new_frame(self) -> bool:
         return self._new_frame
@@ -119,4 +121,40 @@ def test_paused_playback_keeps_hud_visible_in_auto_mode(monkeypatch) -> None:
 
     app._refresh_playback_hud_visibility()
 
-    assert app._state.playback_hud_visible is True
+    assert app._state.playback_hud_visible is True
+
+
+def test_layout_scales_for_square_display() -> None:
+    compact = theme.get_layout(640, 480)
+    square = theme.get_layout(720, 720)
+
+    assert square.visible_items > compact.visible_items
+    assert square.list_item_h > compact.list_item_h
+    assert square.playback_hud_top > compact.playback_hud_top
+
+
+def test_sync_player_viewport_uses_runtime_layout(monkeypatch) -> None:
+    app = _make_app()
+    app._window = object()
+
+    def fake_get_window_size(_window, width_ptr, height_ptr):
+        width = ctypes.cast(width_ptr, ctypes.POINTER(ctypes.c_int))
+        height = ctypes.cast(height_ptr, ctypes.POINTER(ctypes.c_int))
+        width.contents.value = 720
+        height.contents.value = 720
+
+    monkeypatch.setattr(sdl_app_module.sdl2, "SDL_GetWindowSize", fake_get_window_size)
+
+    app._sync_player_viewport()
+
+    layout = app._layout
+    assert layout.width == 720
+    assert layout.height == 720
+    assert app._player.viewport == (
+        720,
+        720,
+        layout.playback_hud_top,
+        720 - layout.playback_video_bottom,
+        layout.playback_video_left,
+        720 - layout.playback_video_right,
+    )