void QgsFieldCalculator::on_mOutputFieldTypeComboBox_activated( int index )
{
mOutputFieldWidthSpinBox->setMinimum( mOutputFieldTypeComboBox->itemData( index, Qt::UserRole + 2 ).toInt() );
mOutputFieldWidthSpinBox->setMaximum( mOutputFieldTypeComboBox->itemData( index, Qt::UserRole + 3 ).toInt() );
mOutputFieldWidthSpinBox->setEnabled( mOutputFieldWidthSpinBox->minimum() < mOutputFieldWidthSpinBox->maximum() );
if ( mOutputFieldWidthSpinBox->value() < mOutputFieldWidthSpinBox->minimum() )
mOutputFieldWidthSpinBox->setValue( mOutputFieldWidthSpinBox->minimum() );
if ( mOutputFieldWidthSpinBox->value() > mOutputFieldWidthSpinBox->maximum() )
mOutputFieldWidthSpinBox->setValue( mOutputFieldWidthSpinBox->maximum() );
setPrecisionMinMax();
}
void QgsAddAttrDialog::on_mTypeBox_currentIndexChanged( int idx )
{
mTypeName->setText( mTypeBox->itemData( idx, Qt::UserRole + 1 ).toString() );
mLength->setMinimum( mTypeBox->itemData( idx, Qt::UserRole + 2 ).toInt() );
mLength->setMaximum( mTypeBox->itemData( idx, Qt::UserRole + 3 ).toInt() );
mLength->setVisible( mLength->minimum() < mLength->maximum() );
mLengthLabel->setVisible( mLength->minimum() < mLength->maximum() );
if ( mLength->value() < mLength->minimum() )
mLength->setValue( mLength->minimum() );
if ( mLength->value() > mLength->maximum() )
mLength->setValue( mLength->maximum() );
setPrecisionMinMax();
}
void QgsAddAttrDialog::on_mLength_editingFinished()
{
setPrecisionMinMax();
}
QgsFieldCalculator::QgsFieldCalculator( QgsVectorLayer* vl, QWidget* parent )
: QDialog( parent )
, mVectorLayer( vl )
, mAttributeId( -1 )
{
setupUi( this );
if ( !vl )
return;
QgsExpressionContext expContext;
expContext << QgsExpressionContextUtils::globalScope()
<< QgsExpressionContextUtils::projectScope()
<< QgsExpressionContextUtils::layerScope( mVectorLayer );
expContext.lastScope()->setVariable( "row_number", 1 );
expContext.setHighlightedVariables( QStringList() << "row_number" );
builder->setLayer( vl );
builder->loadFieldNames();
builder->setExpressionContext( expContext );
populateFields();
populateOutputFieldTypes();
connect( builder, SIGNAL( expressionParsed( bool ) ), this, SLOT( setOkButtonState() ) );
connect( mOutputFieldWidthSpinBox, SIGNAL( editingFinished() ), this, SLOT( setPrecisionMinMax() ) );
QgsDistanceArea myDa;
myDa.setSourceCrs( vl->crs().srsid() );
myDa.setEllipsoidalMode( QgisApp::instance()->mapCanvas()->mapSettings().hasCrsTransformEnabled() );
myDa.setEllipsoid( QgsProject::instance()->readEntry( "Measure", "/Ellipsoid", GEO_NONE ) );
builder->setGeomCalculator( myDa );
//default values for field width and precision
mOutputFieldWidthSpinBox->setValue( 10 );
mOutputFieldPrecisionSpinBox->setValue( 3 );
setPrecisionMinMax();
if ( vl->providerType() == "ogr" && vl->storageType() == "ESRI Shapefile" )
{
mOutputFieldNameLineEdit->setMaxLength( 10 );
}
if ( !( vl->dataProvider()->capabilities() & QgsVectorDataProvider::AddAttributes ) )
{
mCreateVirtualFieldCheckbox->setChecked( true );
mCreateVirtualFieldCheckbox->setEnabled( false );
mOnlyVirtualFieldsInfoLabel->setVisible( true );
mInfoIcon->setVisible( true );
}
else
{
mOnlyVirtualFieldsInfoLabel->setVisible( false );
mInfoIcon->setVisible( false );
}
if ( !( vl->dataProvider()->capabilities() & QgsVectorDataProvider::ChangeAttributeValues ) )
{
mUpdateExistingGroupBox->setEnabled( false );
mCreateVirtualFieldCheckbox->setChecked( true );
mCreateVirtualFieldCheckbox->setEnabled( false );
}
Q_ASSERT( mNewFieldGroupBox->isEnabled() || mUpdateExistingGroupBox->isEnabled() );
if ( mNewFieldGroupBox->isEnabled() )
{
mNewFieldGroupBox->setChecked( true );
}
else
{
mNewFieldGroupBox->setToolTip( tr( "Not available for layer" ) );
mUpdateExistingGroupBox->setChecked( true );
mUpdateExistingGroupBox->setCheckable( false );
}
if ( mUpdateExistingGroupBox->isEnabled() )
{
mUpdateExistingGroupBox->setChecked( !mNewFieldGroupBox->isEnabled() );
}
else
{
mUpdateExistingGroupBox->setToolTip( tr( "Not available for layer" ) );
mNewFieldGroupBox->setChecked( true );
mNewFieldGroupBox->setCheckable( false );
}
if (( mNewFieldGroupBox->isChecked() && mCreateVirtualFieldCheckbox->isChecked() ) || mVectorLayer->isEditable() )
{
mEditModeAutoTurnOnLabel->setVisible( false );
mInfoIcon->setVisible( false );
}
else
{
mInfoIcon->setVisible( true );
}
bool hasselection = vl->selectedFeatureCount() > 0;
mOnlyUpdateSelectedCheckBox->setChecked( hasselection );
mOnlyUpdateSelectedCheckBox->setEnabled( hasselection );
mOnlyUpdateSelectedCheckBox->setText( tr( "Only update %1 selected features" ).arg( vl->selectedFeatureCount() ) );
builder->loadRecent( "fieldcalc" );
mInfoIcon->setPixmap( style()->standardPixmap( QStyle::SP_MessageBoxInformation ) );
setOkButtonState();
QSettings settings;
restoreGeometry( settings.value( "/Windows/QgsFieldCalculator/geometry" ).toByteArray() );
}
