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e8e13ecb6f
available schemas for a specific data connection (providers must implement the connections API)
136 lines
4.2 KiB
C++
136 lines
4.2 KiB
C++
/***************************************************************************
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qgsdatabaseschemacombobox.cpp
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--------------------------------
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Date : March 2020
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Copyright : (C) 2020 Nyall Dawson
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Email : nyall dot dawson at gmail 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 "qgsdatabaseschemacombobox.h"
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#include "qgsdatabaseschemamodel.h"
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#include <QHBoxLayout>
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QgsDatabaseSchemaComboBox::QgsDatabaseSchemaComboBox( const QString &provider, const QString &connection, QWidget *parent )
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: QWidget( parent )
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, mProvider( provider )
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{
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mModel = new QgsDatabaseSchemaModel( provider, connection, this );
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init();
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}
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QgsDatabaseSchemaComboBox::QgsDatabaseSchemaComboBox( QgsAbstractDatabaseProviderConnection *connection, QWidget *parent )
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: QWidget( parent )
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{
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mModel = new QgsDatabaseSchemaModel( connection, this );
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init();
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}
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void QgsDatabaseSchemaComboBox::init()
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{
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mComboBox = new QComboBox();
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mSortModel = new QSortFilterProxyModel( this );
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mSortModel->setSourceModel( mModel );
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mSortModel->setSortRole( Qt::DisplayRole );
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mSortModel->setSortLocaleAware( true );
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mSortModel->setSortCaseSensitivity( Qt::CaseInsensitive );
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mSortModel->setDynamicSortFilter( true );
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mSortModel->sort( 0 );
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mComboBox->setModel( mSortModel );
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QHBoxLayout *l = new QHBoxLayout();
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l->setContentsMargins( 0, 0, 0, 0 );
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l->addWidget( mComboBox );
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setLayout( l );
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connect( mComboBox, static_cast < void ( QComboBox::* )( int ) > ( &QComboBox::activated ), this, &QgsDatabaseSchemaComboBox::indexChanged );
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connect( mSortModel, &QAbstractItemModel::rowsInserted, this, &QgsDatabaseSchemaComboBox::rowsChanged );
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connect( mSortModel, &QAbstractItemModel::rowsRemoved, this, &QgsDatabaseSchemaComboBox::rowsChanged );
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}
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void QgsDatabaseSchemaComboBox::setSchema( const QString &schema )
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{
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if ( schema == currentSchema() )
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return;
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if ( schema.isEmpty() )
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{
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mComboBox->setCurrentIndex( -1 );
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emit schemaChanged( QString() );
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return;
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}
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QModelIndexList idx = mSortModel->match( mSortModel->index( 0, 0 ), Qt::DisplayRole, schema, Qt::MatchFixedString | Qt::MatchCaseSensitive );
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if ( !idx.empty() )
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{
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QModelIndex proxyIdx = idx.at( 0 );
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if ( proxyIdx.isValid() )
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{
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mComboBox->setCurrentIndex( proxyIdx.row() );
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emit schemaChanged( currentSchema() );
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return;
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}
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}
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mComboBox->setCurrentIndex( -1 );
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emit schemaChanged( QString() );
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}
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void QgsDatabaseSchemaComboBox::setConnectionName( const QString &connection, const QString &provider )
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{
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if ( !provider.isEmpty() )
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mProvider = provider;
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const QString oldSchema = currentSchema();
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QgsDatabaseSchemaModel *oldModel = mModel;
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mModel = new QgsDatabaseSchemaModel( mProvider, connection, this );
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mSortModel->setSourceModel( mModel );
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oldModel->deleteLater();
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if ( currentSchema() != oldSchema )
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setSchema( oldSchema );
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}
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void QgsDatabaseSchemaComboBox::refreshSchemas()
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{
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const QString oldSchema = currentSchema();
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mModel->refresh();
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setSchema( oldSchema );
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}
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QString QgsDatabaseSchemaComboBox::currentSchema() const
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{
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const QModelIndex proxyIndex = mSortModel->index( mComboBox->currentIndex(), 0 );
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if ( !proxyIndex.isValid() )
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{
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return QString();
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}
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return mSortModel->data( proxyIndex, Qt::DisplayRole ).toString();
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}
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void QgsDatabaseSchemaComboBox::indexChanged( int i )
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{
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Q_UNUSED( i )
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emit schemaChanged( currentSchema() );
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}
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void QgsDatabaseSchemaComboBox::rowsChanged()
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{
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if ( mComboBox->count() == 1 )
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{
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//currently selected connection item has changed
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emit schemaChanged( currentSchema() );
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}
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else if ( mComboBox->count() == 0 )
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{
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emit schemaChanged( QString() );
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}
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}
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