Jaye Evins
6c10571ba4
QTableWidget was a major bottleneck for large merge sources (#217). This is because a QTableWidgetItem needed to be created for every field in every record of the merge data, whether they are being displayed or not. This was not a problem for small merge sources (only a few dozen records max), however for larger data sets this would severely affect performance and make the application unresponsive. QTableView only renders the fields and records currently visible.
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/* MergeTableModel.h
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*
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* Copyright (C) 2025 Jaye Evins <evins@snaught.com>
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*
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* This file is part of gLabels-qt.
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*
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* gLabels-qt is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* gLabels-qt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with gLabels-qt. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MergeTableModel_h
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#define MergeTableModel_h
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#include "merge/Merge.h"
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#include <QAbstractTableModel>
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namespace glabels
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{
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///
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/// MergeTable proxy model
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///
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class MergeTableModel : public QAbstractTableModel
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{
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Q_OBJECT
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/////////////////////////////////
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// Life Cycle
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/////////////////////////////////
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public:
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MergeTableModel( merge::Merge* merge, QObject* parent = nullptr );
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/////////////////////////////////
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// Public methods
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/////////////////////////////////
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public:
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int rowCount( const QModelIndex& parent = QModelIndex() ) const override;
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int columnCount( const QModelIndex &parent = QModelIndex() ) const override;
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QVariant headerData( int section, Qt::Orientation orientation, int role = Qt::DisplayRole ) const override;
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QVariant data( const QModelIndex& index, int role = Qt::DisplayRole ) const override;
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bool setData( const QModelIndex& index, const QVariant& value, int role = Qt::EditRole ) override;
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Qt::ItemFlags flags( const QModelIndex& index ) const override;
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/////////////////////////////////
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// Private slots
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/////////////////////////////////
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private slots:
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void onSelectionChanged();
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/////////////////////////////////
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// Private Members
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/////////////////////////////////
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private:
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merge::Merge* mMerge;
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QStringList mDisplayKeys;
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};
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}
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#endif // MergeTableModel_h
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