Differential D25311 Diff 70437 src/core/kcolumnheadersmodel.cpp

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src/core/kcolumnheadersmodel.cpp

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1		/*
2		Copyright (c) 2019 Arjen Hiemstra <ahiemstra@heimr.nl>
3
4		This library is free software; you can redistribute it and/or modify it
5		under the terms of the GNU Library General Public License as published by
6		the Free Software Foundation; either version 2 of the License, or (at your
7		option) any later version.
8
9		This library is distributed in the hope that it will be useful, but WITHOUT
10		ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11		FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
12		License for more details.
13
14		You should have received a copy of the GNU Library General Public License
15		along with this library; see the file COPYING.LIB. If not, write to the
16		Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17		02110-1301, USA.
18		*/
19
20		#include "kcolumnheadersmodel.h"
21
22		class KColumnHeadersModelPrivate
23		{
	kossebauUnsubmitted Not Done Instead of using a nested class Private, consider using a non-nested KColumnHeadersModelPrivate class. Otherwise you want to tag this class to not inherit the symbol visibility attributes, using Q_DECL_HIDDEN. Not going nested spares to do this. kossebau: Instead of using a nested class Private, consider using a non-nested KColumnHeadersModelPrivate…
24		public:
25		QAbstractItemModel *sourceModel = nullptr;
26		};
27
28		KColumnHeadersModel::KColumnHeadersModel(QObject *parent)
29		: QAbstractListModel(parent), d(new KColumnHeadersModelPrivate)
30		{
31		}
32
33		KColumnHeadersModel::~KColumnHeadersModel()
34		{
35		}
36
37		int KColumnHeadersModel::rowCount(const QModelIndex& parent) const
38		{
39		if (!d->sourceModel \|\| parent.isValid()) {
40		return 0;
41		}
42
43		return d->sourceModel->columnCount();
44		}
45
46		QVariant KColumnHeadersModel::data(const QModelIndex& index, int role) const
47		{
48		if (!d->sourceModel \|\| !index.isValid()) {
49		return QVariant{};
50		}
51
52		return sourceModel()->headerData(index.row(), Qt::Horizontal, role);
53		}
54
55		QHash<int, QByteArray> KColumnHeadersModel::roleNames() const
56		{
57		if (!d->sourceModel) {
58		return QHash<int, QByteArray>{};
59		}
60
61		return d->sourceModel->roleNames();
62		}
63
64		QAbstractItemModel *KColumnHeadersModel::sourceModel() const
65		{
66		return d->sourceModel;
67		}
68
69		void KColumnHeadersModel::setSourceModel(QAbstractItemModel* newSourceModel)
70		{
71		if (newSourceModel == d->sourceModel) {
72		return;
73		}
74
75		if (d->sourceModel) {
76		d->sourceModel->disconnect(this);
77		}
78
79		beginResetModel();
80		d->sourceModel = newSourceModel;
81		endResetModel();
82
83		if (newSourceModel) {
	davidedmundsonUnsubmitted Done connect(modelAboutToBeReset modelReset davidedmundson: connect(modelAboutToBeReset modelReset
84		connect(newSourceModel, &QAbstractItemModel::columnsAboutToBeInserted, this, [this](const QModelIndex&, int first, int last) {
85		beginInsertRows(QModelIndex{}, first, last);
86		});
87		connect(newSourceModel, &QAbstractItemModel::columnsInserted, this, [this]() { endInsertRows(); });
88		connect(newSourceModel, &QAbstractItemModel::columnsAboutToBeMoved, this, [this](const QModelIndex&, int start, int end, const QModelIndex&, int destination) {
89		beginMoveRows(QModelIndex{}, start, end, QModelIndex{}, destination);
90		});
91		connect(newSourceModel, &QAbstractItemModel::columnsMoved, this, [this]() { endMoveRows(); });
92		connect(newSourceModel, &QAbstractItemModel::columnsAboutToBeRemoved, this, [this](const QModelIndex &, int first, int last) {
93		beginRemoveRows(QModelIndex{}, first, last);
94		});
95		connect(newSourceModel, &QAbstractItemModel::columnsRemoved, this, [this]() { endRemoveRows(); });
96		connect(newSourceModel, &QAbstractItemModel::headerDataChanged, this, [this](Qt::Orientation orientation, int first, int last) {
97		if (orientation == Qt::Horizontal) {
98		Q_EMIT dataChanged(index(first, 0), index(last, 0));
99		}
100		});
101		}
102		}