Differential D25311 Diff 71204 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) {
84​ connect(newSourceModel, &QAbstractItemModel::columnsAboutToBeInserted, this, [this](const QModelIndex&, int first, int last) {
davidedmundsonUnsubmitted
Done

connect(modelAboutToBeReset
modelReset

davidedmundson: connect(modelAboutToBeReset modelReset
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​ connect(newSourceModel, &QAbstractItemModel::layoutAboutToBeChanged, this, &QAbstractItemModel::layoutAboutToBeChanged);
102​ connect(newSourceModel, &QAbstractItemModel::layoutChanged, this, &QAbstractItemModel::layoutChanged);
103​ connect(newSourceModel, &QAbstractItemModel::modelAboutToBeReset, this, [this]() { beginResetModel(); });
104​ connect(newSourceModel, &QAbstractItemModel::modelReset, this, [this]() { endResetModel(); });
105​ }
106​}