def clearLayout(layout: QLayout) -> None:
"""Used to remove widgets from various layouts"""
if layout.count():
while (item := layout.takeAt(0)) is not None:
layout.removeItem(item)
item.widget().hide()
item.widget().deleteLater()
def metadata_window_clear_layout(self, layout: QtWidgets.QLayout) -> None:
if layout is None:
return
r = []
i = layout.count()
while i > 0:
i -= 1
r.append(i)
for i in r:
child = layout.itemAt(i)
# print(child)
if isinstance(child, QtWidgets.QWidgetItem):
try:
child.widget().setVisible(False)
layout.removeWidget(child.widget())
# child.widget().deleteLater()
except Exception:
traceback.print_exc()
elif isinstance(child, QtWidgets.QSpacerItem):
layout.removeItem(child)
elif isinstance(child,
(QtWidgets.QLayoutItem, QtWidgets.QHBoxLayout)):
self.metadata_window_clear_layout(child)
layout.removeItem(child)
del child
def clearLayout(layout: QLayout):
s = layout.takeAt(0)
index = 0
while s:
index += 1
wg = s.widget()
layout.removeItem(s)
layout.removeWidget(wg)
wg.setVisible(False)
s = layout.takeAt(0)
return index
def clear_layout(layout: QLayout):
"""
Clear all widgets from a QLayout.
:param layout:
:return:
"""
widget_count = layout.count()
for i in reversed(range(widget_count)):
item = layout.itemAt(i)
if isinstance(item, QWidgetItem):
item.widget().close()
else:
clear_layout(item.layout())
# Remove item from layout
layout.removeItem(item)
def remove_trailing_spacer_from_layout(layout: QLayout):
"""
If the last item in the layout is spacer, removes it.
:param layout: target layout
:return: bool success indicator
"""
ni = layout.count()
if ni < 1:
return False
ni -= 1
layout_item = layout.itemAt(ni)
if layout_item is None:
return False
spacer_item = layout_item.spacerItem()
if spacer_item is not None:
layout.removeItem(spacer_item)
return True
return False
def remove_item_from_layout(layout: QLayout, item):
if item:
if isinstance(item, QWidgetItem):
w = item.widget()
layout.removeWidget(w)
# noinspection PyTypeChecker
w.setParent(None)
del w
elif isinstance(item, QLayout):
for subitem_idx in reversed(range(item.count())):
subitem = item.itemAt(subitem_idx)
WndUtils.remove_item_from_layout(item, subitem)
layout.removeItem(item)
# noinspection PyTypeChecker
item.setParent(None)
del item
elif isinstance(item, QSpacerItem):
del item
else:
raise Exception('Invalid item type')
def remove_layout_items(layout: QLayout):
for widget in get_layout_widgets(layout):
widget.deleteLater()
while layout.count():
item = layout.itemAt(0)
layout.removeItem(item)
def clear_layout(qlayout: QLayout):
"""Removes all children of a layout."""
for i in reversed(range(qlayout.count())):
item = qlayout.itemAt(i)
qlayout.removeItem(item)
item.widget().deleteLater()
