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# -*- coding: utf-8 -*- |
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""" |
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Qudi is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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Qudi is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with Qudi. If not, see <http://www.gnu.org/licenses/>. |
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Copyright (c) the Qudi Developers. See the COPYRIGHT.txt file at the |
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top-level directory of this distribution and at <https://github.com/Ulm-IQO/qudi/> |
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""" |
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from qtpy import QtCore |
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class ModuleConfigModel(QtCore.QAbstractTableModel): |
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def __init__(self, module): |
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super().__init__() |
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self.headers = ['Option', 'Value'] |
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self.storage = module.options |
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def getKeyByNumber(self, n): |
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""" Get a dict key by index number |
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@param n int: index number for element |
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@return key: key at index |
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""" |
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i = 0 |
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if not(0 <= n < len(self.storage)): |
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raise IndexError |
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it = iter(self.storage) |
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key = next(it) |
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while(i<n): |
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key = next(it) |
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i += 1 |
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return key |
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def getNumberByKey(self, key): |
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""" Get index number for dict key. |
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@param key: dict key |
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@return int: index numer for key |
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Warning: index number for a key changes when keys with lower numbers are removed. |
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""" |
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i = 0 |
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it = iter(self.storage) |
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newkey = next(it) |
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while(key != newkey): |
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newkey = next(it) |
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i += 1 |
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return i |
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def rowCount(self, parent = QtCore.QModelIndex()): |
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""" Gives the number of stored items. |
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@return int: number of items |
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""" |
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return len(self.storage) |
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def columnCount(self, parent = QtCore.QModelIndex()): |
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""" Gives the number of data fields. |
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@return int: number of data fields |
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""" |
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return len(self.headers) |
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def flags(self, index): |
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""" Determines what can be done with entry cells in the table view. |
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@param QModelIndex index: cell fo which the flags are requested |
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@return Qt.ItemFlags: actins allowed fotr this cell |
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""" |
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return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable |
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def data(self, index, role): |
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""" Get data from model for a given cell. Data can have a role that affects display. |
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@param QModelIndex index: cell for which data is requested |
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@param ItemDataRole role: role for which data is requested |
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@return QVariant: data for given cell and role |
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""" |
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if not index.isValid(): |
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return None |
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elif role == QtCore.Qt.DisplayRole: |
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key = self.getKeyByNumber(index.row()) |
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if index.column() == 0: |
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return self.storage[key].name |
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elif index.column() == 1: |
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return self.storage[key].default |
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else: |
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return None |
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else: |
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return None |
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def headerData(self, section, orientation, role = QtCore.Qt.DisplayRole): |
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""" Data for the table view headers. |
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@param int section: number of the column to get header data for |
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@param Qt.Orientation: orientation of header (horizontal or vertical) |
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@param ItemDataRole: role for which to get data |
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@return QVariant: header data for given column and role |
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""" |
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if not(0 <= section < len(self.headers)): |
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return None |
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elif role != QtCore.Qt.DisplayRole: |
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return None |
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elif orientation != QtCore.Qt.Horizontal: |
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return None |
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else: |
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return self.headers[section] |
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