QgsMergeAttributesDialog::QgsMergeAttributesDialog( const QgsFeatureList &features, QgsVectorLayer *vl, QgsMapCanvas *canvas, QWidget *parent, Qt::WindowFlags f )
: QDialog( parent, f )
, mFeatureList( features )
, mVectorLayer( vl )
, mMapCanvas( canvas )
, mSelectionRubberBand( nullptr )
{
setupUi( this );
createTableWidgetContents();
QHeaderView* verticalHeader = mTableWidget->verticalHeader();
if ( verticalHeader )
{
QObject::connect( mTableWidget, SIGNAL( itemSelectionChanged() ), this, SLOT( selectedRowChanged() ) );
}
mTableWidget->setSelectionBehavior( QAbstractItemView::SelectRows );
mTableWidget->setSelectionMode( QAbstractItemView::SingleSelection );
mFromSelectedPushButton->setIcon( QgsApplication::getThemeIcon( "mActionFromSelectedFeature.png" ) );
mRemoveFeatureFromSelectionButton->setIcon( QgsApplication::getThemeIcon( "mActionRemoveSelectedFeature.png" ) );
QSettings settings;
restoreGeometry( settings.value( "/Windows/MergeAttributes/geometry" ).toByteArray() );
connect( mSkipAllButton, SIGNAL( clicked() ), this, SLOT( setAllToSkip() ) );
connect( mTableWidget, SIGNAL( cellChanged( int, int ) ), this, SLOT( tableWidgetCellChanged( int, int ) ) );
}
void QgsMergeAttributesDialog::mRemoveFeatureFromSelectionButton_clicked()
{
if ( !mVectorLayer )
{
return;
}
//find out feature id of selected row
QList<QTableWidgetItem *> selectionList = mTableWidget->selectedItems();
if ( selectionList.isEmpty() )
{
return;
}
//assume all selected items to be in the same row
QTableWidgetItem *selectedItem = selectionList[0];
int selectedRow = selectedItem->row();
QTableWidgetItem *selectedHeaderItem = mTableWidget->verticalHeaderItem( selectedRow );
if ( !selectedHeaderItem )
{
return;
}
bool conversionSuccess;
QgsFeatureId featureId = selectedHeaderItem->text().toLongLong( &conversionSuccess );
if ( !conversionSuccess )
{
selectedRowChanged();
return;
}
mTableWidget->removeRow( selectedRow );
selectedRowChanged();
//remove feature from the vector layer selection
QgsFeatureIds selectedIds = mVectorLayer->selectedFeatureIds();
selectedIds.remove( featureId );
mVectorLayer->selectByIds( selectedIds );
mMapCanvas->repaint();
//remove feature option from the combo box (without altering the current merge values)
for ( int i = 0; i < mTableWidget->columnCount(); ++i )
{
QComboBox *currentComboBox = qobject_cast<QComboBox *>( mTableWidget->cellWidget( 0, i ) );
if ( !currentComboBox )
continue;
currentComboBox->blockSignals( true );
currentComboBox->removeItem( currentComboBox->findData( QStringLiteral( "f%1" ).arg( FID_TO_STRING( featureId ) ) ) );
currentComboBox->blockSignals( false );
}
//finally remove the feature from mFeatureList
for ( QgsFeatureList::iterator f_it = mFeatureList.begin();
f_it != mFeatureList.end();
++f_it )
{
if ( f_it->id() == featureId )
{
mFeatureList.erase( f_it );
break;
}
}
}
