191 lines
7.1 KiB
Python
Executable File
191 lines
7.1 KiB
Python
Executable File
#!/usr/bin/python3
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# vim: set expandtab tabstop=4 shiftwidth=4:
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# PyQt Functionality Snippet by Apocalyptech
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# "Licensed" in the Public Domain under CC0 1.0 Universal (CC0 1.0)
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# Public Domain Dedication. Use it however you like!
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#
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# https://creativecommons.org/publicdomain/zero/1.0/
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# https://creativecommons.org/publicdomain/zero/1.0/legalcode
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from PyQt6 import QtWidgets, QtCore
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# class MyModel(QtGui.QStandardItemModel):
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class MyModel(QtCore.QAbstractTableModel):
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def __init__(self, parent=None):
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super().__init__(parent)
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def columnCount(self, parent=None):
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return 5
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def rowCount(self, parent=None):
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return 20
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# def headerData(self, column: int, orientation, role: QtCore.Qt.ItemDataRole):
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# return (('Regex', 'Category')[column]
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# if role == QtCore.Qt.DisplayRole and orientation == QtCore.Qt.Horizontal
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# else None)
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def headerData(self, column, orientation, role):
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if role == QtCore.Qt.ItemDataRole.DisplayRole and orientation == QtCore.Qt.Orientation.Horizontal:
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return f"{column=}"
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return None
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def data(self, index: QtCore.QModelIndex, role: QtCore.Qt.ItemDataRole):
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if not index.isValid() or role not in {
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QtCore.Qt.ItemDataRole.DisplayRole,
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QtCore.Qt.ItemDataRole.EditRole,
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}:
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return None
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# return (self._data[index.row()][index.column()] if index.row() < len(self._data) else
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# "edit me" if role == QtCore.Qt.DisplayRole else "")
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# def data(self, index, role):
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# if not index.isValid() or role not in [QtCore.Qt.DisplayRole,
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# QtCore.Qt.EditRole]:
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# return None
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# return (self._data[index.row()][index.column()] if index.row() < len(self._data) else
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# "edit me" if role == QtCore.Qt.DisplayRole else "")
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row = index.row()
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column = index.column()
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return f"Row {row}, Col {column}"
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def flags(self, index: QtCore.QModelIndex) -> QtCore.Qt.ItemFlag:
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# https://doc.qt.io/qt-5/qt.html#ItemFlag-enum
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if not index.isValid():
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return QtCore.Qt.ItemFlag.ItemIsEnabled
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if index.row() < 20:
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return (
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QtCore.Qt.ItemFlag.ItemIsEnabled
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| QtCore.Qt.ItemFlag.ItemIsEditable
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| QtCore.Qt.ItemFlag.ItemIsSelectable
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| QtCore.Qt.ItemFlag.ItemIsDragEnabled
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)
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return QtCore.Qt.ItemFlag.ItemIsEnabled | QtCore.Qt.ItemFlag.ItemIsEditable
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# def flags(self, index):
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# if not index.isValid():
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# return QtCore.Qt.ItemIsDropEnabled
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# if index.row() < 5:
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# return (
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# QtCore.Qt.ItemIsEnabled
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# | QtCore.Qt.ItemIsEditable
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# | QtCore.Qt.ItemIsSelectable
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# | QtCore.Qt.ItemIsDragEnabled
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# )
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# return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsEditable
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# def supportedDragOptions(self):
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# return QtCore.Qt.MoveAction | QtCore.Qt.CopyAction
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# def supportedDropActions(self) -> bool:
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# return QtCore.Qt.MoveAction | QtCore.Qt.CopyAction
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def relocateRow(self, row_source, row_target) -> None:
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return
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row_a, row_b = max(row_source, row_target), min(row_source, row_target)
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self.beginMoveRows(
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QtCore.QModelIndex(), row_a, row_a, QtCore.QModelIndex(), row_b
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)
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self._data.insert(row_target, self._data.pop(row_source))
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self.endMoveRows()
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def supportedDropActions(self):
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return QtCore.Qt.DropAction.MoveAction | QtCore.Qt.DropAction.CopyAction
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# def relocateRow(self, src, dst):
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# print("relocateRow")
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# def dropMimeData(self, data, action, row, col, parent):
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# """
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# Always move the entire row, and don't allow column "shifting"
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# """
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# # return super().dropMimeData(data, action, row, 0, parent)
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# print("dropMimeData")
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# super().dropMimeData(data, action, row, col, parent)
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class MyStyle(QtWidgets.QProxyStyle):
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def drawPrimitive(self, element, option, painter, widget=None):
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"""
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Draw a line across the entire row rather than just the column
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we're hovering over. This may not always work depending on global
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style - for instance I think it won't work on OSX.
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"""
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if element == QtWidgets.QStyle.PrimitiveElement.PE_IndicatorItemViewItemDrop and not option.rect.isNull():
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option_new = QtWidgets.QStyleOption(option)
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option_new.rect.setLeft(0)
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if widget:
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option_new.rect.setRight(widget.width())
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option = option_new
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super().drawPrimitive(element, option, painter, widget)
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class MyTableView(QtWidgets.QTableView):
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def __init__(self, parent):
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super().__init__(parent)
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self.verticalHeader().hide()
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self.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectionBehavior.SelectRows)
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self.setSelectionMode(QtWidgets.QAbstractItemView.SelectionMode.ExtendedSelection)
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self.setDragDropMode(QtWidgets.QAbstractItemView.DragDropMode.InternalMove)
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self.setDragDropOverwriteMode(False)
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self.setAcceptDrops(True)
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# self.horizontalHeader().hide()
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# self.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.Stretch)
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# self.setShowGrid(False)
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# Set our custom style - this draws the drop indicator across the whole row
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self.setStyle(MyStyle())
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# Set our custom model - this prevents row "shifting"
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# self.model = MyModel()
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# self.setModel(self.model)
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self.setModel(MyModel())
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# for (idx, data) in enumerate(['foo', 'bar', 'baz']):
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# item_1 = QtGui.QStandardItem('Item {}'.format(idx))
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# item_1.setEditable(False)
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# item_1.setDropEnabled(False)
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# item_2 = QtGui.QStandardItem(data)
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# item_2.setEditable(False)
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# item_2.setDropEnabled(False)
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# self.model.appendRow([item_1, item_2])
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def dropEvent(self, event):
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if event.source() is not self or (
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event.dropAction() != QtCore.Qt.DropAction.MoveAction
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and self.dragDropMode() != QtWidgets.QAbstractItemView.InternalMove
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):
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super().dropEvent(event)
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from_rows = list(set([a.row() for a in self.selectedIndexes()]))
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to_row = self.indexAt(event.position().toPoint()).row()
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if (
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0 <= min(from_rows) <= self.model().rowCount()
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and 0 <= max(from_rows) <= self.model().rowCount()
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and 0 <= to_row <= self.model().rowCount()
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):
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print(f"move_rows({from_rows=}, {to_row=})")
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event.accept()
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super().dropEvent(event)
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class Testing(QtWidgets.QMainWindow):
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def __init__(self):
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super().__init__()
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view = MyTableView(self)
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view.setModel(MyModel())
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self.setCentralWidget(view)
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self.show()
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if __name__ == "__main__":
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app = QtWidgets.QApplication([])
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test = Testing()
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raise SystemExit(app.exec())
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