Akonadi Contacts

leafextensionproxymodel.cpp
1/*
2 This file is part of Akonadi Contact.
3
4 SPDX-FileCopyrightText: 2010 KDAB
5 SPDX-FileContributor: Tobias Koenig <tokoe@kde.org>
6
7 SPDX-License-Identifier: LGPL-2.0-or-later
8*/
9
10#include "leafextensionproxymodel_p.h"
11
12#include <QSet>
13
14using namespace Akonadi;
15
16class Akonadi::LeafExtensionProxyModelPrivate
17{
18public:
19 explicit LeafExtensionProxyModelPrivate(LeafExtensionProxyModel *qq)
20 : q(qq)
21 {
22 }
23
24 void sourceRowsInserted(const QModelIndex &parentIndex, int start, int end);
25 void sourceRowsRemoved(const QModelIndex &parentIndex, int start, int end);
26
27 LeafExtensionProxyModel *const q;
28 QMap<qint64, QModelIndex> mParentIndexes;
29 QSet<QModelIndex> mOwnIndexes;
30 qint64 mUniqueKeyCounter = 0;
31};
32
33void LeafExtensionProxyModelPrivate::sourceRowsInserted(const QModelIndex &parentIndex, int start, int end)
34{
35 // iterate over all of our stored parent indexes
37 while (it.hasNext()) {
38 it.next();
39 if (it.value().parent() == parentIndex) {
40 if (it.value().row() >= start) {
41 const QModelIndex newIndex = q->QSortFilterProxyModel::index(it.value().row() + (end - start) + 1, it.value().column(), parentIndex);
42 it.setValue(newIndex);
43 }
44 }
45 }
46}
47
48void LeafExtensionProxyModelPrivate::sourceRowsRemoved(const QModelIndex &parentIndex, int start, int end)
49{
50 // iterate over all of our stored parent indexes
52 while (it.hasNext()) {
53 it.next();
54 if (it.value().parent() == parentIndex) {
55 if (it.value().row() >= start && it.value().row() <= end) {
56 it.remove();
57 } else if (it.value().row() > end) {
58 const QModelIndex newIndex = q->index(it.value().row() - (end - start) - 1, it.value().column(), parentIndex);
59 it.setValue(newIndex);
60 }
61 }
62 }
63}
64
65LeafExtensionProxyModel::LeafExtensionProxyModel(QObject *parent)
66 : QSortFilterProxyModel(parent)
67 , d(new LeafExtensionProxyModelPrivate(this))
68{
69}
70
71LeafExtensionProxyModel::~LeafExtensionProxyModel() = default;
72
73QModelIndex LeafExtensionProxyModel::index(int row, int column, const QModelIndex &parent) const
74{
75 if (row < 0 || column < 0) {
76 return {};
77 }
78
79 if (parent.isValid()) {
80 const QModelIndex sourceParent = mapToSource(parent);
81 const QModelIndex sourceIndex = sourceModel()->index(row, column, sourceParent);
82 if (!sourceIndex.isValid()) {
83 qint64 key = -1;
84 QMapIterator<qint64, QModelIndex> it(d->mParentIndexes);
85 while (it.hasNext()) {
86 it.next();
87 if (it.value() == parent) {
88 key = it.key();
89 break;
90 }
91 }
92
93 if (key == -1) {
94 key = ++(d->mUniqueKeyCounter);
95 d->mParentIndexes.insert(key, parent);
96 }
97
98 const QModelIndex index = createIndex(row, column, static_cast<quint32>(key));
99 d->mOwnIndexes.insert(index);
100
101 return index;
102 }
103 }
104
105 return QSortFilterProxyModel::index(row, column, parent);
106}
107
108QModelIndex LeafExtensionProxyModel::parent(const QModelIndex &index) const
109{
110 if (d->mOwnIndexes.contains(index)) {
111 return d->mParentIndexes.value(index.internalId());
112 }
113
114 return QSortFilterProxyModel::parent(index);
115}
116
117int LeafExtensionProxyModel::rowCount(const QModelIndex &index) const
118{
119 if (d->mOwnIndexes.contains(index)) {
120 return 0;
121 }
122
123 const QModelIndex sourceIndex = mapToSource(index);
124 if (sourceModel()->rowCount(sourceIndex) == 0) {
125 return leafRowCount(index);
126 }
127
129}
130
131int LeafExtensionProxyModel::columnCount(const QModelIndex &index) const
132{
133 if (d->mOwnIndexes.contains(index)) {
134 return 1;
135 }
136
138}
139
140QVariant LeafExtensionProxyModel::data(const QModelIndex &index, int role) const
141{
142 if (d->mOwnIndexes.contains(index)) {
143 return leafData(index.parent(), index.row(), index.column(), role);
144 }
145
146 return QSortFilterProxyModel::data(index, role);
147}
148
149Qt::ItemFlags LeafExtensionProxyModel::flags(const QModelIndex &index) const
150{
151 if (d->mOwnIndexes.contains(index)) {
153 }
154
155 return QSortFilterProxyModel::flags(index);
156}
157
158bool LeafExtensionProxyModel::setData(const QModelIndex &index, const QVariant &data, int role)
159{
160 if (d->mOwnIndexes.contains(index)) {
161 return false;
162 }
163
164 return QSortFilterProxyModel::setData(index, data, role);
165}
166
167bool LeafExtensionProxyModel::hasChildren(const QModelIndex &parent) const
168{
169 if (d->mOwnIndexes.contains(parent)) {
170 return false; // extensible in the future?
171 }
172
173 const QModelIndex sourceParent = mapToSource(parent);
174 if (sourceModel() && sourceModel()->rowCount(sourceParent) == 0) {
175 return leafRowCount(parent) != 0;
176 }
177
179}
180
181QModelIndex LeafExtensionProxyModel::buddy(const QModelIndex &index) const
182{
183 if (d->mOwnIndexes.contains(index)) {
184 return index;
185 }
186
187 return QSortFilterProxyModel::buddy(index);
188}
189
190void LeafExtensionProxyModel::fetchMore(const QModelIndex &index)
191{
192 if (d->mOwnIndexes.contains(index)) {
193 return;
194 }
195
197}
198
199void LeafExtensionProxyModel::setSourceModel(QAbstractItemModel *_sourceModel)
200{
201 if (_sourceModel == sourceModel()) {
202 return;
203 }
204
205 beginResetModel();
206
207 disconnect(this, SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(sourceRowsInserted(QModelIndex, int, int)));
208 disconnect(this, SIGNAL(rowsRemoved(QModelIndex, int, int)), this, SLOT(sourceRowsRemoved(QModelIndex, int, int)));
209
211
212 connect(this, SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(sourceRowsInserted(QModelIndex, int, int)));
213 connect(this, SIGNAL(rowsRemoved(QModelIndex, int, int)), this, SLOT(sourceRowsRemoved(QModelIndex, int, int)));
214
215 endResetModel();
216}
217
218#include "moc_leafextensionproxymodel_p.cpp"
Q_SCRIPTABLE Q_NOREPLY void start()
A widget for editing the display name of a contact.
int column() const const
quintptr internalId() const const
bool isValid() const const
QModelIndex parent() const const
int row() const const
QObject * parent() const const
virtual QModelIndex buddy(const QModelIndex &index) const const override
virtual int columnCount(const QModelIndex &parent) const const override
virtual QVariant data(const QModelIndex &index, int role) const const override
virtual void fetchMore(const QModelIndex &parent) override
virtual Qt::ItemFlags flags(const QModelIndex &index) const const override
virtual bool hasChildren(const QModelIndex &parent) const const override
virtual QModelIndex index(int row, int column, const QModelIndex &parent) const const override
virtual int rowCount(const QModelIndex &parent) const const override
virtual bool setData(const QModelIndex &index, const QVariant &value, int role) override
virtual void setSourceModel(QAbstractItemModel *sourceModel) override
typedef ItemFlags
QFuture< ArgsType< Signal > > connect(Sender *sender, Signal signal)
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