QString QgsProcessingAlgorithm::invalidSinkError( const QVariantMap ¶meters, const QString &name )
{
if ( !parameters.contains( name ) )
return QObject::tr( "Could not create destination layer for %1: no value specified for parameter" ).arg( name );
else
{
QVariant var = parameters.value( name );
if ( var.canConvert<QgsProcessingOutputLayerDefinition>() )
{
QgsProcessingOutputLayerDefinition fromVar = qvariant_cast<QgsProcessingOutputLayerDefinition>( var );
var = fromVar.sink;
}
if ( var.canConvert<QgsProperty>() )
{
QgsProperty p = var.value< QgsProperty >();
if ( p.propertyType() == QgsProperty::StaticProperty )
{
var = p.staticValue();
}
}
if ( !var.toString().isEmpty() )
return QObject::tr( "Could not create destination layer for %1: %2" ).arg( name, var.toString() );
else
return QObject::tr( "Could not create destination layer for %1: invalid value" ).arg( name );
}
}
void QgsPropertyOverrideButton::setToProperty( const QgsProperty &property )
{
if ( property )
{
switch ( property.propertyType() )
{
case QgsProperty::StaticProperty:
case QgsProperty::InvalidProperty:
break;
case QgsProperty::FieldBasedProperty:
{
mFieldName = property.field();
break;
}
case QgsProperty::ExpressionBasedProperty:
{
mExpressionString = property.expressionString();
break;
}
}
}
else
{
mFieldName.clear();
mExpressionString.clear();
}
mProperty = property;
setActive( mProperty && mProperty.isActive() );
updateSiblingWidgets( isActive() );
updateGui();
}
QString QgsMapToolLabel::dataDefinedColumnName( QgsPalLayerSettings::Property p, const QgsPalLayerSettings &labelSettings ) const
{
if ( !labelSettings.dataDefinedProperties().isActive( p ) )
return QString();
QgsProperty prop = labelSettings.dataDefinedProperties().property( p );
if ( prop.propertyType() != QgsProperty::FieldBasedProperty )
return QString();
return prop.field();
}
void QgsLabelPropertyDialog::insertChangedValue( QgsPalLayerSettings::Property p, const QVariant &value )
{
if ( mDataDefinedProperties.isActive( p ) )
{
QgsProperty prop = mDataDefinedProperties.property( p );
if ( prop.propertyType() == QgsProperty::FieldBasedProperty )
{
mChangedProperties.insert( mCurLabelFeat.fieldNameIndex( prop.field() ), value );
}
}
}
void QgsDataDefinedSizeLegend::updateFromSymbolAndProperty( const QgsMarkerSymbol *symbol, const QgsProperty &ddSize )
{
mSymbol.reset( symbol->clone() );
mSymbol->setDataDefinedSize( QgsProperty() ); // original symbol may have had data-defined size associated
const QgsSizeScaleTransformer *sizeTransformer = dynamic_cast< const QgsSizeScaleTransformer * >( ddSize.transformer() );
mSizeScaleTransformer.reset( sizeTransformer ? sizeTransformer->clone() : nullptr );
if ( mTitleLabel.isEmpty() )
mTitleLabel = ddSize.propertyType() == QgsProperty::ExpressionBasedProperty ? ddSize.expressionString() : ddSize.field();
// automatically generate classes if no classes are defined
if ( sizeTransformer && mSizeClasses.isEmpty() )
{
mSizeClasses.clear();
Q_FOREACH ( double v, QgsSymbolLayerUtils::prettyBreaks( sizeTransformer->minValue(), sizeTransformer->maxValue(), 4 ) )
{
mSizeClasses << SizeClass( v, QString::number( v ) );
}
}
bool QgsMapToolLabel::createAuxiliaryFields( LabelDetails &details, QgsPalIndexes &indexes ) const
{
bool newAuxiliaryLayer = false;
QgsVectorLayer *vlayer = details.layer;
QString providerId = details.pos.providerID;
if ( !vlayer || !vlayer->labelsEnabled() )
return false;
if ( !vlayer->auxiliaryLayer() )
{
QgsNewAuxiliaryLayerDialog dlg( vlayer );
dlg.exec();
newAuxiliaryLayer = true;
}
if ( !vlayer->auxiliaryLayer() )
return false;
for ( const QgsPalLayerSettings::Property &p : qgis::as_const( mPalProperties ) )
{
int index = -1;
// always use the default activated property
QgsProperty prop = details.settings.dataDefinedProperties().property( p );
if ( prop.propertyType() == QgsProperty::FieldBasedProperty && prop.isActive() )
{
index = vlayer->fields().lookupField( prop.field() );
}
else
{
index = QgsAuxiliaryLayer::createProperty( p, vlayer );
}
indexes[p] = index;
}
details.settings = vlayer->labeling()->settings( providerId );
return newAuxiliaryLayer;
}
QString QgsProcessingAlgorithm::invalidRasterError( const QVariantMap ¶meters, const QString &name )
{
if ( !parameters.contains( name ) )
return QObject::tr( "Could not load source layer for %1: no value specified for parameter" ).arg( name );
else
{
QVariant var = parameters.value( name );
if ( var.canConvert<QgsProperty>() )
{
QgsProperty p = var.value< QgsProperty >();
if ( p.propertyType() == QgsProperty::StaticProperty )
{
var = p.staticValue();
}
}
if ( !var.toString().isEmpty() )
return QObject::tr( "Could not load source layer for %1: %2 not found" ).arg( name, var.toString() );
else
return QObject::tr( "Could not load source layer for %1: invalid value" ).arg( name );
}
}
bool QgsMapToolLabel::createAuxiliaryFields( LabelDetails &details, QgsDiagramIndexes &indexes )
{
bool newAuxiliaryLayer = false;
QgsVectorLayer *vlayer = details.layer;
if ( !vlayer )
return newAuxiliaryLayer;
if ( !vlayer->auxiliaryLayer() )
{
QgsNewAuxiliaryLayerDialog dlg( vlayer );
dlg.exec();
newAuxiliaryLayer = true;
}
if ( !vlayer->auxiliaryLayer() )
return false;
for ( const QgsDiagramLayerSettings::Property &p : qgis::as_const( mDiagramProperties ) )
{
int index = -1;
// always use the default activated property
QgsProperty prop = vlayer->diagramLayerSettings()->dataDefinedProperties().property( p );
if ( prop.propertyType() == QgsProperty::FieldBasedProperty && prop.isActive() )
{
index = vlayer->fields().lookupField( prop.field() );
}
else
{
index = QgsAuxiliaryLayer::createProperty( p, vlayer );
}
indexes[p] = index;
}
return newAuxiliaryLayer;
}
void QgsLabelPropertyDialog::enableDataDefinedWidgets( QgsVectorLayer *vlayer )
{
//loop through data defined properties, this time setting whether or not the widgets are enabled
//this can only be done for properties which are assigned to fields
Q_FOREACH ( int key, mDataDefinedProperties.propertyKeys() )
{
QgsProperty prop = mDataDefinedProperties.property( key );
if ( !prop || !prop.isActive() || prop.propertyType() != QgsProperty::FieldBasedProperty )
{
continue; // can only modify attributes with an active data definition of a mapped field
}
QString ddField = prop.field();
if ( ddField.isEmpty() )
{
continue;
}
int ddIndx = vlayer->fields().lookupField( ddField );
if ( ddIndx == -1 )
{
continue;
}
QgsDebugMsg( QStringLiteral( "ddField: %1" ).arg( ddField ) );
switch ( key )
{
case QgsPalLayerSettings::Show:
mShowLabelChkbx->setEnabled( true );
break;
case QgsPalLayerSettings::AlwaysShow:
mAlwaysShowChkbx->setEnabled( true );
break;
case QgsPalLayerSettings::MinimumScale:
mMinScaleWidget->setEnabled( true );
break;
case QgsPalLayerSettings::MaximumScale:
mMaxScaleWidget->setEnabled( true );
break;
case QgsPalLayerSettings::BufferSize:
mBufferSizeSpinBox->setEnabled( true );
break;
case QgsPalLayerSettings::PositionX:
mXCoordSpinBox->setEnabled( true );
break;
case QgsPalLayerSettings::PositionY:
mYCoordSpinBox->setEnabled( true );
break;
case QgsPalLayerSettings::LabelDistance:
mLabelDistanceSpinBox->setEnabled( true );
break;
case QgsPalLayerSettings::Hali:
mHaliComboBox->setEnabled( true );
break;
case QgsPalLayerSettings::Vali:
mValiComboBox->setEnabled( true );
break;
case QgsPalLayerSettings::BufferColor:
mBufferColorButton->setEnabled( true );
break;
case QgsPalLayerSettings::Color:
mFontColorButton->setEnabled( true );
break;
case QgsPalLayerSettings::LabelRotation:
mRotationSpinBox->setEnabled( true );
break;
//font related properties
case QgsPalLayerSettings::Family:
mFontFamilyCmbBx->setEnabled( true );
break;
case QgsPalLayerSettings::FontStyle:
mFontStyleCmbBx->setEnabled( true );
break;
case QgsPalLayerSettings::Underline:
mFontUnderlineBtn->setEnabled( true );
break;
case QgsPalLayerSettings::Strikeout:
mFontStrikethroughBtn->setEnabled( true );
break;
case QgsPalLayerSettings::Bold:
mFontBoldBtn->setEnabled( true );
break;
case QgsPalLayerSettings::Italic:
mFontItalicBtn->setEnabled( true );
break;
case QgsPalLayerSettings::Size:
mFontSizeSpinBox->setEnabled( true );
break;
default:
break;
}
}
}