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73 lines
3.1 KiB
C++
73 lines
3.1 KiB
C++
/***************************************************************************
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qgsdiscoverrelationsdlg.cpp
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---------------------
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begin : September 2016
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copyright : (C) 2016 by Patrick Valsecchi
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email : patrick dot valsecchi at camptocamp dot com
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***************************************************************************
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* *
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* This program 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 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "qgsdiscoverrelationsdlg.h"
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#include "qgsvectorlayer.h"
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#include "qgsrelationmanager.h"
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#include <QPushButton>
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QgsDiscoverRelationsDlg::QgsDiscoverRelationsDlg( const QList<QgsRelation> &existingRelations, const QList<QgsVectorLayer *> &layers, QWidget *parent )
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: QDialog( parent )
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, mLayers( layers )
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{
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setupUi( this );
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mButtonBox->button( QDialogButtonBox::Ok )->setEnabled( false );
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connect( mRelationsTable->selectionModel(), &QItemSelectionModel::selectionChanged, this, &QgsDiscoverRelationsDlg::onSelectionChanged );
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mFoundRelations = QgsRelationManager::discoverRelations( existingRelations, layers );
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Q_FOREACH ( const QgsRelation &relation, mFoundRelations ) addRelation( relation );
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mRelationsTable->resizeColumnsToContents();
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}
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void QgsDiscoverRelationsDlg::addRelation( const QgsRelation &rel )
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{
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const int row = mRelationsTable->rowCount();
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mRelationsTable->insertRow( row );
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mRelationsTable->setItem( row, 0, new QTableWidgetItem( rel.name() ) );
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mRelationsTable->setItem( row, 1, new QTableWidgetItem( rel.referencingLayer()->name() ) );
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mRelationsTable->setItem( row, 2, new QTableWidgetItem( rel.fieldPairs().at( 0 ).referencingField() ) );
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mRelationsTable->setItem( row, 3, new QTableWidgetItem( rel.referencedLayer()->name() ) );
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mRelationsTable->setItem( row, 4, new QTableWidgetItem( rel.fieldPairs().at( 0 ).referencedField() ) );
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if ( rel.strength() == QgsRelation::RelationStrength::Composition )
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{
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mRelationsTable->setItem( row, 5, new QTableWidgetItem( QStringLiteral( "Composition" ) ) );
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}
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else
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{
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mRelationsTable->setItem( row, 5, new QTableWidgetItem( QStringLiteral( "Association" ) ) );
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}
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mRelationsTable->item( row, 5 )->setToolTip( QStringLiteral( "Composition (child features will be copied too) or Association" ) );
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}
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QList<QgsRelation> QgsDiscoverRelationsDlg::relations() const
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{
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QList<QgsRelation> result;
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Q_FOREACH ( const QModelIndex &row, mRelationsTable->selectionModel()->selectedRows() )
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{
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result.append( mFoundRelations.at( row.row() ) );
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}
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return result;
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}
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void QgsDiscoverRelationsDlg::onSelectionChanged()
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{
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mButtonBox->button( QDialogButtonBox::Ok )->setEnabled( mRelationsTable->selectionModel()->hasSelection() );
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}
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