KD Chart 2
[rev.2.5]
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00001 /**************************************************************************** 00002 ** Copyright (C) 2001-2012 Klaralvdalens Datakonsult AB. All rights reserved. 00003 ** 00004 ** This file is part of the KD Chart library. 00005 ** 00006 ** Licensees holding valid commercial KD Chart licenses may use this file in 00007 ** accordance with the KD Chart Commercial License Agreement provided with 00008 ** the Software. 00009 ** 00010 ** 00011 ** This file may be distributed and/or modified under the terms of the 00012 ** GNU General Public License version 2 and version 3 as published by the 00013 ** Free Software Foundation and appearing in the file LICENSE.GPL.txt included. 00014 ** 00015 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE 00016 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 00017 ** 00018 ** Contact info@kdab.com if any conditions of this licensing are not 00019 ** clear to you. 00020 ** 00021 **********************************************************************/ 00022 00023 #ifndef KDCHARTDATASETPROXYMODEL_H 00024 #define KDCHARTDATASETPROXYMODEL_H 00025 00026 #include <QVector> 00027 #include <QSortFilterProxyModel> 00028 00029 #include "kdchart_export.h" 00030 00031 namespace KDChart { 00032 00033 class IndexOutOfBoundsException; 00034 00035 typedef QVector<int> DatasetDescriptionVector; 00036 00055 class KDCHART_EXPORT DatasetProxyModel : public QSortFilterProxyModel 00056 { 00057 Q_OBJECT 00058 public: 00063 explicit DatasetProxyModel ( QObject* parent = 0 ); 00064 00065 QModelIndex buddy( const QModelIndex& index ) const; 00066 00067 Qt::ItemFlags flags( const QModelIndex& index ) const; 00068 00069 QModelIndex index( int row, int column, 00070 const QModelIndex &parent = QModelIndex() ) const; 00071 QModelIndex parent(const QModelIndex &child ) const; 00072 00074 QModelIndex mapFromSource ( const QModelIndex & sourceIndex ) const; 00075 00077 QModelIndex mapToSource ( const QModelIndex& proxyIndex ) const; 00078 00080 QVariant data(const QModelIndex &index, int role) const; 00081 00083 bool setData( const QModelIndex& index, const QVariant& value, int role ); 00084 00086 QVariant headerData ( int section, Qt::Orientation orientation, int role = Qt::DisplayRole ) const; 00087 00089 void setSourceModel(QAbstractItemModel *sourceModel); 00090 00093 void setSourceRootIndex(const QModelIndex& rootIdx); 00094 00095 00096 public Q_SLOTS: 00101 void resetDatasetDescriptions(); 00102 00107 void setDatasetColumnDescriptionVector ( const DatasetDescriptionVector& columnConfig ); 00108 00113 void setDatasetRowDescriptionVector ( const DatasetDescriptionVector& rowConfig ); 00114 00116 void setDatasetDescriptionVectors ( 00117 const DatasetDescriptionVector& rowConfig, 00118 const DatasetDescriptionVector& columnConfig ); 00119 00120 // FIXME: add convenience methods to configure common dataset 00121 // selections (like rectangular areas etc) 00122 00123 protected: 00125 bool filterAcceptsColumn ( int sourceColumn, 00126 const QModelIndex & ) const; 00127 00128 00130 bool filterAcceptsRow ( int source_row, const QModelIndex & source_parent ) const; 00131 00132 private: 00133 00135 int mapProxyColumnToSource ( const int& proxyColumn ) const; 00136 00138 int mapSourceColumnToProxy ( const int& sourceColumn ) const; 00139 00141 int mapProxyRowToSource ( const int& proxyRow ) const; 00142 00144 int mapSourceRowToProxy ( const int& sourceRow ) const; 00145 00169 void initializeDatasetDecriptors ( 00170 const DatasetDescriptionVector& inConfiguration, 00171 int sourceCount, 00172 DatasetDescriptionVector& outSourceToProxyMap, 00173 DatasetDescriptionVector& outProxyToSourceMap ); 00174 00175 DatasetDescriptionVector mColSrcToProxyMap; 00176 DatasetDescriptionVector mColProxyToSrcMap; 00177 DatasetDescriptionVector mRowSrcToProxyMap; 00178 DatasetDescriptionVector mRowProxyToSrcMap; 00179 00180 int mProxyRowCount; 00181 int mProxyColumnCount; 00182 QModelIndex mRootIndex; 00183 }; 00184 00185 } 00186 00187 00188 #endif