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Diffstat (limited to 'framework/domain/retriever.h')
-rw-r--r-- | framework/domain/retriever.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/framework/domain/retriever.h b/framework/domain/retriever.h new file mode 100644 index 00000000..e454532d --- /dev/null +++ b/framework/domain/retriever.h | |||
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1 | /* | ||
2 | Copyright (c) 2016 Christian Mollekopf <mollekopf@kolabsystems.com> | ||
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 | #pragma once | ||
21 | |||
22 | #include <QObject> | ||
23 | #include <QAbstractItemModel> | ||
24 | #include <QVariant> | ||
25 | |||
26 | /** | ||
27 | * A wrapper for a QAbstractItemModel to retrieve a value from a single index via property binding | ||
28 | * | ||
29 | * Assign a model that retrieves the index, set the property your interested in, and propery-bind "value". | ||
30 | */ | ||
31 | class Retriever : public QObject | ||
32 | { | ||
33 | Q_OBJECT | ||
34 | Q_PROPERTY(QAbstractItemModel* model READ model WRITE setModel) | ||
35 | Q_PROPERTY(QString propertyName MEMBER mPropertyName) | ||
36 | Q_PROPERTY(QVariant value MEMBER mValue NOTIFY valueChanged) | ||
37 | |||
38 | public: | ||
39 | explicit Retriever(QObject *parent = Q_NULLPTR); | ||
40 | |||
41 | QAbstractItemModel* model() const; | ||
42 | void setModel(QAbstractItemModel* model); | ||
43 | |||
44 | signals: | ||
45 | void valueChanged(); | ||
46 | |||
47 | private slots: | ||
48 | void onRowsInserted(const QModelIndex &parent, int first, int last); | ||
49 | void onModelReset(); | ||
50 | |||
51 | private: | ||
52 | QString mPropertyName; | ||
53 | QVariant mValue; | ||
54 | QAbstractItemModel *mModel; | ||
55 | }; | ||