Esempio n. 1
0
QgsProperty QgsProperty::fromField( const QString &fieldName, bool isActive )
{
  QgsProperty p;
  p.setField( fieldName );
  p.setActive( isActive );
  return p;
}
Esempio n. 2
0
QgsProperty QgsProperty::fromValue( const QVariant &value, bool isActive )
{
  QgsProperty p;
  p.setStaticValue( value );
  p.setActive( isActive );
  return p;
}
Esempio n. 3
0
QgsProperty QgsProperty::fromExpression( const QString &expression, bool isActive )
{
  QgsProperty p;
  p.setExpressionString( expression );
  p.setActive( isActive );
  return p;
}
Esempio n. 4
0
void QgsSymbolsListWidget::createAuxiliaryField()
{
  // try to create an auxiliary layer if not yet created
  if ( !mLayer->auxiliaryLayer() )
  {
    QgsNewAuxiliaryLayerDialog dlg( mLayer, this );
    dlg.exec();
  }

  // return if still not exists
  if ( !mLayer->auxiliaryLayer() )
    return;

  QgsPropertyOverrideButton *button = qobject_cast<QgsPropertyOverrideButton *>( sender() );
  QgsSymbolLayer::Property key = static_cast<  QgsSymbolLayer::Property >( button->propertyKey() );
  const QgsPropertyDefinition def = QgsSymbolLayer::propertyDefinitions()[key];

  // create property in auxiliary storage if necessary
  if ( !mLayer->auxiliaryLayer()->exists( def ) )
    mLayer->auxiliaryLayer()->addAuxiliaryField( def );

  // update property with join field name from auxiliary storage
  QgsProperty property = button->toProperty();
  property.setField( QgsAuxiliaryLayer::nameFromProperty( def, true ) );
  property.setActive( true );
  button->updateFieldLists();
  button->setToProperty( property );

  QgsMarkerSymbol *markerSymbol = static_cast<QgsMarkerSymbol *>( mSymbol );
  QgsLineSymbol *lineSymbol = static_cast<QgsLineSymbol *>( mSymbol );
  switch ( key )
  {
    case QgsSymbolLayer::PropertyAngle:
      if ( markerSymbol )
        markerSymbol->setDataDefinedAngle( button->toProperty() );
      break;

    case QgsSymbolLayer::PropertySize:
      if ( markerSymbol )
      {
        markerSymbol->setDataDefinedSize( button->toProperty() );
        markerSymbol->setScaleMethod( QgsSymbol::ScaleDiameter );
      }
      break;

    case QgsSymbolLayer::PropertyStrokeWidth:
      if ( lineSymbol )
        lineSymbol->setDataDefinedWidth( button->toProperty() );
      break;

    default:
      break;
  }

  emit changed();
}