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Diffstat (limited to 'examples/widgets/itemviews/address_book/tablemodel.py')
-rw-r--r-- | examples/widgets/itemviews/address_book/tablemodel.py | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/examples/widgets/itemviews/address_book/tablemodel.py b/examples/widgets/itemviews/address_book/tablemodel.py new file mode 100644 index 000000000..3c1dbd4cc --- /dev/null +++ b/examples/widgets/itemviews/address_book/tablemodel.py @@ -0,0 +1,109 @@ +# Copyright (C) 2011 Arun Srinivasan <rulfzid@gmail.com> +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +from PySide6.QtCore import (Qt, QAbstractTableModel, QModelIndex) + + +class TableModel(QAbstractTableModel): + + def __init__(self, addresses=None, parent=None): + super().__init__(parent) + + if addresses is None: + self.addresses = [] + else: + self.addresses = addresses + + def rowCount(self, index=QModelIndex()): + """ Returns the number of rows the model holds. """ + return len(self.addresses) + + def columnCount(self, index=QModelIndex()): + """ Returns the number of columns the model holds. """ + return 2 + + def data(self, index, role=Qt.DisplayRole): + """ Depending on the index and role given, return data. If not + returning data, return None (PySide equivalent of QT's + "invalid QVariant"). + """ + if not index.isValid(): + return None + + if not 0 <= index.row() < len(self.addresses): + return None + + if role == Qt.DisplayRole: + name = self.addresses[index.row()]["name"] + address = self.addresses[index.row()]["address"] + + if index.column() == 0: + return name + elif index.column() == 1: + return address + + return None + + def headerData(self, section, orientation, role=Qt.DisplayRole): + """ Set the headers to be displayed. """ + if role != Qt.DisplayRole: + return None + + if orientation == Qt.Horizontal: + if section == 0: + return "Name" + elif section == 1: + return "Address" + + return None + + def insertRows(self, position, rows=1, index=QModelIndex()): + """ Insert a row into the model. """ + self.beginInsertRows(QModelIndex(), position, position + rows - 1) + + for row in range(rows): + self.addresses.insert(position + row, {"name": "", "address": ""}) + + self.endInsertRows() + return True + + def removeRows(self, position, rows=1, index=QModelIndex()): + """ Remove a row from the model. """ + self.beginRemoveRows(QModelIndex(), position, position + rows - 1) + + del self.addresses[position:position + rows] + + self.endRemoveRows() + return True + + def setData(self, index, value, role=Qt.EditRole): + """ Adjust the data (set it to <value>) depending on the given + index and role. + """ + if role != Qt.EditRole: + return False + + if index.isValid() and 0 <= index.row() < len(self.addresses): + address = self.addresses[index.row()] + if index.column() == 0: + address["name"] = value + elif index.column() == 1: + address["address"] = value + else: + return False + + self.dataChanged.emit(index, index, 0) + return True + + return False + + def flags(self, index): + """ Set the item flags at the given index. Seems like we're + implementing this function just to see how it's done, as we + manually adjust each tableView to have NoEditTriggers. + """ + if not index.isValid(): + return Qt.ItemIsEnabled + return Qt.ItemFlags(QAbstractTableModel.flags(self, index) + | Qt.ItemIsEditable) |