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Fix diagonal navigation — use viewport width for column count

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FlowLayout.columns now reads the scroll area viewport width
instead of its own width, which can be stale after appending
posts or scrollbar visibility changes.
This commit is contained in:
pax 2026-04-05 14:52:28 -05:00
parent 2be7206879
commit 6f684bb491
1 changed files with 6 additions and 1 deletions
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7
booru_viewer/gui/grid.py
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@ -258,7 +258,12 @@ class FlowLayout(QWidget):
def columns(self) -> int: def columns(self) -> int:
if not self._items: if not self._items:
return 1 return 1
w = self.width() or 800 # Use parent viewport width if inside a QScrollArea
parent = self.parentWidget()
if parent and hasattr(parent, 'viewport'):
w = parent.viewport().width()
else:
w = self.width() or 800
return max(1, w // (THUMB_SIZE + THUMB_SPACING)) return max(1, w // (THUMB_SIZE + THUMB_SPACING))