cap the function pane width so it doesn't dominate wide terminals

Was 42% (≈100 cols on a 240-wide term). Now 30% clamped to min 42 / max 44, and
columns tightened to 10/21/7 -> a stable ~41-43 cols that fits the content: 46%
on a 90-col term but only 18% at 240 (code area 194 vs ~140 before). Ctrl+B still
hides it. pilot suite 57/57.

2 files changed, 7 insertions, 4 deletions

diff --git a/idatui/app.py b/idatui/app.py
index 918aadc..b5bb5f2 100644
--- a/idatui/app.py
+++ b/idatui/app.py
@@ -943,9 +943,9 @@ class FunctionsPanel(Vertical):
         self._filter.display = False
         yield self._filter
         table = DataTable(id="func-table", cursor_type="row", zebra_stripes=True)
-        table.add_column("Address", width=12)
-        table.add_column("Function", width=28)
-        table.add_column("Size", width=8)
+        table.add_column("Address", width=10)
+        table.add_column("Function", width=21)
+        table.add_column("Size", width=7)
         yield table
 
 
@@ -984,7 +984,7 @@ class IdaTui(App):
     CSS = """
     Screen { layout: vertical; }
     #panes { height: 1fr; }
-    #left { width: 42%; border-right: solid $panel; }
+    #left { width: 30%; min-width: 42; max-width: 44; border-right: solid $panel; }
     #func-table { height: 1fr; }
     #func-filter { dock: top; }
     DisasmView { width: 1fr; padding: 0 1; }
diff --git a/tests/test_tui.py b/tests/test_tui.py
index 9a1c650..0419842 100644
--- a/tests/test_tui.py
+++ b/tests/test_tui.py
@@ -51,6 +51,9 @@ async def run(db):
 
         loaded = await wait_until(pilot, lambda: table.row_count > 0)
         check("function list populated", loaded, f"rows={table.row_count}")
+        left = app.query_one("#left")
+        check("function pane width is capped (doesn't eat the screen)",
+              left.size.width <= 44, f"width={left.size.width}")
 
         got_all = await wait_until(
             pilot, lambda: "functions" in str(status.render()) and "…" not in str(status.render()),