Allow individually setting margins and padding for each edge (left, right, top, bottom)

kitty_tests/layout.py

@@ -4,7 +4,6 @@
 
 from kitty.config import defaults
 from kitty.constants import WindowGeometry
-from kitty.fast_data_types import pt_to_px
 from kitty.layout import Grid, Horizontal, Splits, Stack, Tall, idx_for_id
 from kitty.window import EdgeWidths
 
@@ -22,6 +21,15 @@ class Window:
         self.padding = EdgeWidths()
         self.margin = EdgeWidths()
 
+    def effective_border(self):
+        return 1
+
+    def effective_padding(self, edge):
+        return 1
+
+    def effective_margin(self, edge, is_single_window=False):
+        return 0 if is_single_window else 1
+
     def set_visible_in_layout(self, idx, val):
         self.is_visible_in_layout = bool(val)
 
@@ -32,8 +40,7 @@ class Window:
 def create_layout(cls, opts=None, border_width=2):
     if opts is None:
         opts = defaults
-    mw, pw = map(pt_to_px, (opts.window_margin_width, opts.window_padding_width))
-    ans = cls(1, 1, mw, mw, pw, border_width)
+    ans = cls(1, 1)
     ans.set_active_window_in_os_window = lambda idx: None
     ans.swap_windows_in_os_window = lambda a, b: None
     return ans