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77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/***************************************************************************
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qgsmaplayercombobox.cpp
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--------------------------------------
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Date : 01.04.2014
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Copyright : (C) 2014 Denis Rouzaud
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Email : denis.rouzaud@gmail.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 "qgsmaplayercombobox.h"
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#include "qgsmaplayermodel.h"
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QgsMapLayerComboBox::QgsMapLayerComboBox( QWidget *parent ) :
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QComboBox( parent )
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{
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mProxyModel = new QgsMapLayerProxyModel( this );
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setModel( mProxyModel );
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connect( this, SIGNAL( activated( int ) ), this, SLOT( indexChanged( int ) ) );
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}
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void QgsMapLayerComboBox::setLayer( QgsMapLayer *layer )
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{
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QModelIndex idx = mProxyModel->sourceLayerModel()->indexFromLayer( layer );
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if ( idx.isValid() )
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{
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QModelIndex proxyIdx = mProxyModel->mapFromSource( idx );
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if ( proxyIdx.isValid() )
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{
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setCurrentIndex( proxyIdx.row() );
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emit layerChanged( currentLayer() );
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return;
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}
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}
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setCurrentIndex( -1 );
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emit layerChanged( currentLayer() );
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}
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QgsMapLayer* QgsMapLayerComboBox::currentLayer() const
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{
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int i = currentIndex();
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const QModelIndex proxyIndex = mProxyModel->index( i, 0 );
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if ( !proxyIndex.isValid() )
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{
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return 0;
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}
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const QModelIndex index = mProxyModel->mapToSource( proxyIndex );
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if ( !index.isValid() )
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{
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return 0;
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}
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QgsMapLayer* layer = static_cast<QgsMapLayer*>( index.internalPointer() );
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if ( layer )
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{
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return layer;
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}
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return 0;
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}
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void QgsMapLayerComboBox::indexChanged( int i )
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{
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Q_UNUSED( i );
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QgsMapLayer* layer = currentLayer();
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emit layerChanged( layer );
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}
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