File indexing completed on 2024-05-12 16:33:36 

0001 /* This file is part of the KDE project
0002 
0003    Copyright 2010 Johannes Simon <johannes.simon@gmail.com>
0004 
0005    This library is free software; you can redistribute it and/or
0006    modify it under the terms of the GNU Library General Public
0007    License as published by the Free Software Foundation; either
0008    version 2 of the License, or (at your option) any later version.
0009 
0010    This library is distributed in the hope that it will be useful,
0011    but WITHOUT ANY WARRANTY; without even the implied warranty of
0012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0013    Library General Public License for more details.
0014 
0015    You should have received a copy of the GNU Library General Public License
0016    along with this library; see the file COPYING.LIB.  If not, write to
0017    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0018    Boston, MA 02110-1301, USA.
0019 */
0020 
0021 // Own
0022 #include "SingleModelHelper.h"
0023 
0024 // Qt
0025 #include <QAbstractItemModel>
0026 
0027 // KoChart
0028 #include "TableSource.h"
0029 #include "ChartProxyModel.h"
0030 #include "CellRegion.h"
0031 
0032 using namespace KoChart;
0033 
0034 SingleModelHelper::SingleModelHelper(Table *table, ChartProxyModel *proxyModel)
0035     : m_table(table)
0036     , m_proxyModel(proxyModel)
0037 {
0038     Q_ASSERT(table);
0039     Q_ASSERT(proxyModel);
0040 
0041     QAbstractItemModel *model = table->model();
0042     connect(model, SIGNAL(modelReset()),
0043             this,  SLOT(slotModelStructureChanged()));
0044     connect(model, SIGNAL(rowsInserted(QModelIndex,int,int)),
0045             this,  SLOT(slotModelStructureChanged()));
0046     connect(model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
0047             this,  SLOT(slotModelStructureChanged()));
0048     connect(model, SIGNAL(columnsInserted(QModelIndex,int,int)),
0049             this,  SLOT(slotModelStructureChanged()));
0050     connect(model, SIGNAL(columnsRemoved(QModelIndex,int,int)),
0051             this,  SLOT(slotModelStructureChanged()));
0052 
0053     // Initialize the proxy with this model
0054     slotModelStructureChanged();
0055 }
0056 
0057 void SingleModelHelper::slotModelStructureChanged()
0058 {
0059     QAbstractItemModel *model = m_table->model();
0060     const int columnCount = model->columnCount();
0061     const int rowCount = model->rowCount();
0062     CellRegion region(m_table);
0063     if (columnCount >= 1 && rowCount >= 1) {
0064         QPoint topLeft(1, 1);
0065         QPoint bottomRight(columnCount, rowCount);
0066         region.add(QRect(topLeft, bottomRight));
0067     }
0068     m_proxyModel->reset(region);
0069 }