87 lines
3 KiB
Python
87 lines
3 KiB
Python
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# listwidget.pyw
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from typing import Optional
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from PyQt5.QtWidgets import QListWidget, QWidget, QAbstractItemView, QListWidgetItem
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from PyQt5.QtGui import QDragEnterEvent, QDropEvent, QDragMoveEvent, QKeyEvent
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from PyQt5.QtCore import Qt, QModelIndex, pyqtSignal
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class MyListWidget(QListWidget):
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"""支持拖拽的QListWidget"""
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change_list_name = pyqtSignal()
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def __init__(self, parent: Optional[QWidget] = None) -> None:
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super().__init__(parent)
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# 拖拽设置
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# self.setAcceptDrops(True)
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# self.setDragEnabled(True)
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# self.setDragDropMode(QAbstractItemView.DragDrop) # 设置拖放
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# self.setSelectionMode(QAbstractItemView.ExtendedSelection) # 设置选择多个
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# self.setDefaultDropAction(Qt.CopyAction)
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# 双击可编辑
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self.edited_item = self.currentItem()
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self.close_flag = True
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self.doubleClicked.connect(self.item_double_clicked)
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self.currentItemChanged.connect(self.close_edit)
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def keyPressEvent(self, e: QKeyEvent) -> None:
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"""回车事件，关闭edit"""
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super().keyPressEvent(e)
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if e.key() == Qt.Key_Return:
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if self.close_flag:
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self.close_edit()
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self.close_flag = True
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self.change_list_name.emit()
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def edit_new_item(self) -> None:
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"""edit一个新的item"""
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self.close_flag = False
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self.close_edit()
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count = self.count()
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self.addItem('')
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item = self.item(count)
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self.edited_item = item
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self.openPersistentEditor(item)
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self.editItem(item)
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def item_double_clicked(self, modelindex: QModelIndex) -> None:
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"""双击事件"""
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if self.currentRow() > 1:
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self.close_edit()
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item = self.item(modelindex.row())
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self.edited_item = item
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self.openPersistentEditor(item)
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self.editItem(item)
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# print(self.currentItem().text())
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def close_edit(self, *_) -> None:
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"""关闭edit"""
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# print(self.currentItem().text())
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# print(self.currentRow())
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if self.edited_item and self.isPersistentEditorOpen(self.edited_item):
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self.closePersistentEditor(self.edited_item)
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def dragEnterEvent(self, e: QDragEnterEvent) -> None:
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"""（从外部或内部控件）拖拽进入后触发的事件"""
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# print(e.mimeData().text())
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if e.mimeData().hasText():
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if e.mimeData().text().startswith('file:///'):
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e.accept()
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else:
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e.ignore()
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def dragMoveEvent(self, e: QDragMoveEvent) -> None:
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"""拖拽移动过程中触发的事件"""
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e.accept()
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def dropEvent(self, e: QDropEvent) -> None:
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"""拖拽结束以后触发的事件"""
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paths = e.mimeData().text().split('\n')
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for path in paths:
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path = path.strip()
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if len(path) > 8:
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self.addItem(path.strip()[8:])
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e.accept()
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