File indexing completed on 2024-04-28 16:21:17

0001 /* This file is part of the KDE project
0002    Copyright 2007 Stefan Nikolaus <stefan.nikolaus@kdemail.net>
0003 
0004    This library is free software; you can redistribute it and/or
0005    modify it under the terms of the GNU Library General Public
0006    License as published by the Free Software Foundation; either
0007    version 2 of the License, or (at your option) any later version.
0008 
0009    This library is distributed in the hope that it will be useful,
0010    but WITHOUT ANY WARRANTY; without even the implied warranty of
0011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012    Library General Public License for more details.
0013 
0014    You should have received a copy of the GNU Library General Public License
0015    along with this library; see the file COPYING.LIB.  If not, write to
0016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017    Boston, MA 02110-1301, USA.
0018 */
0019 
0020 #ifndef CALLIGRA_SHEETS_BINDING
0021 #define CALLIGRA_SHEETS_BINDING
0022 
0023 #include <QSharedDataPointer>
0024 #include <QVariant>
0025 
0026 #include "Region.h"
0027 
0028 #include "sheets_odf_export.h"
0029 
0030 class QAbstractItemModel;
0031 
0032 namespace Calligra
0033 {
0034 namespace Sheets
0035 {
0036 
0037 /**
0038  * Abstracts read-only access to the ValueStorage.
0039  * Useful for KoChart (or other apps, that want read-only access to Calligra Sheets' data).
0040  *
0041  * If a cell in the region is updated, the BindingManager informs this Binding, which
0042  * in turn informs the model it holds.
0043  */
0044 class CALLIGRA_SHEETS_ODF_EXPORT Binding
0045 {
0046 public:
0047     Binding();
0048     explicit Binding(const Region& region);
0049     Binding(const Binding& other);
0050     ~Binding();
0051 
0052     bool isEmpty() const;
0053 
0054     QAbstractItemModel* model() const;
0055 
0056     const Region& region() const;
0057     void setRegion(const Region& region);
0058 
0059     void update(const Region& region);
0060 
0061     void operator=(const Binding& other);
0062     bool operator==(const Binding& other) const;
0063     bool operator<(const Binding& other) const;
0064 
0065 private:
0066     class Private;
0067     QExplicitlySharedDataPointer<Private> d;
0068 };
0069 
0070 } // namespace Sheets
0071 } // namespace Calligra
0072 
0073 Q_DECLARE_METATYPE(Calligra::Sheets::Binding)
0074 Q_DECLARE_TYPEINFO(Calligra::Sheets::Binding, Q_MOVABLE_TYPE);
0075 
0076 #endif // CALLIGRA_SHEETS_BINDING