pyqt5-QListWidget
1、介绍
list组件,或者说列表组件。
2、类和初始化
class QListWidget(QListView):
快速查询:
QListWidget(parent: typing.Optional[QWidget] = None)
addItem(self, aitem: QListWidgetItem)
addItem(self, label: str)
addItems(self, labels: Iterable[str])
clear(self)
closePersistentEditor(self, item: QListWidgetItem)
count(self) -> int
currentItem(self) -> QListWidgetItem
currentRow(self) -> int
dropMimeData(self, index: int, data: QMimeData, action: Qt.DropAction) -> bool
editItem(self, item: QListWidgetItem)
findItems(self, text: str, flags: Union[Qt.MatchFlags, Qt.MatchFlag]) -> List[QListWidgetItem]
indexFromItem(self, item: QListWidgetItem) -> QModelIndex
insertItem(self, row: int, item: QListWidgetItem)
insertItem(self, row: int, label: str)
insertItems(self, row: int, labels: Iterable[str])
isPersistentEditorOpen(self, item: QListWidgetItem) -> bool
isSortingEnabled(self) -> bool
item(self, row: int) -> QListWidgetItem
itemAt(self, p: QPoint) -> QListWidgetItem
itemAt(self, ax: int, ay: int) -> QListWidgetItem
itemFromIndex(self, index: QModelIndex) -> QListWidgetItem
items(self, data: QMimeData) -> List[QListWidgetItem]
itemWidget(self, item: QListWidgetItem) -> QWidget
mimeData(self, items: Iterable[QListWidgetItem]) -> QMimeData
mimeTypes(self) -> List[str]
openPersistentEditor(self, item: QListWidgetItem)
removeItemWidget(self, aItem: QListWidgetItem)
row(self, item: QListWidgetItem) -> int
scrollToItem(self, item: QListWidgetItem, hint: QAbstractItemView.ScrollHint = QAbstractItemView.EnsureVisible)
selectedItems(self) -> List[QListWidgetItem]
setCurrentItem(self, item: QListWidgetItem)
setCurrentItem(self, item: QListWidgetItem, command: Union[QItemSelectionModel.SelectionFlags, QItemSelectionModel.SelectionFlag])
setCurrentRow(self, row: int)
setCurrentRow(self, row: int, command: Union[QItemSelectionModel.SelectionFlags, QItemSelectionModel.SelectionFlag])
setItemWidget(self, item: QListWidgetItem, widget: QWidget)
setSelectionModel(self, selectionModel: QItemSelectionModel)
setSortingEnabled(self, enable: bool)
sortItems(self, order: Qt.SortOrder = Qt.AscendingOrder)
supportedDropActions(self) -> Qt.DropActions
takeItem(self, row: int) -> QListWidgetItem
visualItemRect(self, item: QListWidgetItem) -> QRect
Return len(self).
---------------
dropEvent(self, event: QDropEvent)
event(self, e: QEvent) -> bool
---------------
currentItemChanged(self, current: QListWidgetItem, previous: QListWidgetItem) [signal]
currentRowChanged(self, currentRow: int) [signal]
currentTextChanged(self, currentText: str) [signal]
itemActivated(self, item: QListWidgetItem) [signal]
itemChanged(self, item: QListWidgetItem) [signal]
itemClicked(self, item: QListWidgetItem) [signal]
itemDoubleClicked(self, item: QListWidgetItem) [signal]
itemEntered(self, item: QListWidgetItem) [signal]
itemPressed(self, item: QListWidgetItem) [signal]
itemSelectionChanged(self) [signal]
3、方法
与QComboBox组件的使用存在一些差异
(1)
currentRow(self) -> int
- 当前选中项的行,如果QListWidget组件中不存在项,或者存在但是未选择,则为-1。存在选中项,则返回项的索引,最小为0
(2)
currentIndex(self) -> QModelIndex
<PyQt5.QtCore.QModelIndex object at 0x0000029C14547660>
- 当前选中项的索引,无论是否存在项,是否存在选中项,都会返回这样的对象
(3)
currentItem(self) -> QListWidgetItem
- 当前选中项,如果QListWidget组件中不存在项,或者存在但是未选择,则为None
4、事件
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