Kstars

sessionsortfilterproxymodel.h
1/*
2 SPDX-FileCopyrightText: 2012 Akarsh Simha <akarsh.simha@kdemail.net>
3
4 SPDX-License-Identifier: GPL-2.0-or-later
5*/
6
7#pragma once
8
9#include <QSortFilterProxyModel>
10
11class QModelIndex;
12
13/**
14 * @class SessionSortFilterProxyModel
15 * @short Sort best observation times by reimplementing lessThan() to work on the transit times of objects
16 *
17 * Any observing session starts at about sunset (~ 6 PM local time)
18 * and goes on till sunrise (~ 6 AM local time). Thus, the correct
19 * order to view objects in is to view those with meridian transit
20 * times just after 12 noon local time first, working towards those
21 * that transit in the evening, and finishing the ones that have
22 * meridian transits just before 12 noon at the end of the
23 * session. So, the observing session list should be sorted in a
24 * special manner when sorting by time. This class reimplements
25 * lessThan() in QSortFilterProxyModel to obtain the required sorting.
26 */
28{
30
31 public:
32 explicit SessionSortFilterProxyModel(QObject *parent = nullptr);
33
34 protected:
35 bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
36};
Sort best observation times by reimplementing lessThan() to work on the transit times of objects.
Q_OBJECTQ_OBJECT
QObject * parent() const const
This file is part of the KDE documentation.
Documentation copyright © 1996-2024 The KDE developers.
Generated on Fri Jul 12 2024 12:00:42 by doxygen 1.11.0 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.