void QgsSymbolsListWidget::setLineWidth( double width )
{
QgsLineSymbol *lineSymbol = static_cast<QgsLineSymbol *>( mSymbol );
if ( lineSymbol->width() == width )
return;
lineSymbol->setWidth( width );
emit changed();
}
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();
}
void QgsSymbolsListWidget::updateDataDefinedLineWidth()
{
QgsLineSymbol *lineSymbol = static_cast<QgsLineSymbol *>( mSymbol );
QgsProperty dd( mWidthDDBtn->toProperty() );
spinWidth->setEnabled( !mWidthDDBtn->isActive() );
QgsProperty symbolDD( lineSymbol->dataDefinedWidth() );
if ( // shall we remove datadefined expressions for layers ?
( !symbolDD && !dd )
// shall we set the "en masse" expression for properties ?
|| dd )
{
lineSymbol->setDataDefinedWidth( dd );
emit changed();
}
}
void QgsFeatureRenderer::convertSymbolSizeScale( QgsSymbol * symbol, QgsSymbol::ScaleMethod method, const QString & field )
{
if ( symbol->type() == QgsSymbol::Marker )
{
QgsMarkerSymbol * s = static_cast<QgsMarkerSymbol *>( symbol );
if ( QgsSymbol::ScaleArea == QgsSymbol::ScaleMethod( method ) )
{
const QgsDataDefined dd( "coalesce(sqrt(" + QString::number( s->size() ) + " * (" + field + ")),0)" );
s->setDataDefinedSize( dd );
}
else
{
const QgsDataDefined dd( "coalesce(" + QString::number( s->size() ) + " * (" + field + "),0)" );
s->setDataDefinedSize( dd );
}
s->setScaleMethod( QgsSymbol::ScaleDiameter );
}
else if ( symbol->type() == QgsSymbol::Line )
{
QgsLineSymbol * s = static_cast<QgsLineSymbol *>( symbol );
const QgsDataDefined dd( "coalesce(" + QString::number( s->width() ) + " * (" + field + "),0)" );
s->setDataDefinedWidth( dd );
}
}
void QgsSymbolsListWidget::updateSymbolInfo()
{
updateSymbolColor();
const auto overrideButtons {findChildren< QgsPropertyOverrideButton * >()};
for ( QgsPropertyOverrideButton *button : overrideButtons )
{
button->registerExpressionContextGenerator( this );
}
if ( mSymbol->type() == QgsSymbol::Marker )
{
QgsMarkerSymbol *markerSymbol = static_cast<QgsMarkerSymbol *>( mSymbol );
spinSize->setValue( markerSymbol->size() );
spinAngle->setValue( markerSymbol->angle() );
if ( mLayer )
{
QgsProperty ddSize( markerSymbol->dataDefinedSize() );
mSizeDDBtn->init( QgsSymbolLayer::PropertySize, ddSize, QgsSymbolLayer::propertyDefinitions(), mLayer, true );
spinSize->setEnabled( !mSizeDDBtn->isActive() );
QgsProperty ddAngle( markerSymbol->dataDefinedAngle() );
mRotationDDBtn->init( QgsSymbolLayer::PropertyAngle, ddAngle, QgsSymbolLayer::propertyDefinitions(), mLayer, true );
spinAngle->setEnabled( !mRotationDDBtn->isActive() );
}
else
{
mSizeDDBtn->setEnabled( false );
mRotationDDBtn->setEnabled( false );
}
}
else if ( mSymbol->type() == QgsSymbol::Line )
{
QgsLineSymbol *lineSymbol = static_cast<QgsLineSymbol *>( mSymbol );
spinWidth->setValue( lineSymbol->width() );
if ( mLayer )
{
QgsProperty dd( lineSymbol->dataDefinedWidth() );
mWidthDDBtn->init( QgsSymbolLayer::PropertyStrokeWidth, dd, QgsSymbolLayer::propertyDefinitions(), mLayer, true );
spinWidth->setEnabled( !mWidthDDBtn->isActive() );
}
else
{
mWidthDDBtn->setEnabled( false );
}
}
mSymbolUnitWidget->blockSignals( true );
mSymbolUnitWidget->setUnit( mSymbol->outputUnit() );
mSymbolUnitWidget->setMapUnitScale( mSymbol->mapUnitScale() );
mSymbolUnitWidget->blockSignals( false );
mOpacityWidget->setOpacity( mSymbol->opacity() );
// Clean up previous advanced symbol actions
const QList<QAction *> actionList( btnAdvanced->menu()->actions() );
for ( const auto &action : actionList )
{
if ( mClipFeaturesAction->text() == action->text() )
{
btnAdvanced->menu()->removeAction( action );
}
else if ( mStandardizeRingsAction->text() == action->text() )
{
btnAdvanced->menu()->removeAction( action );
}
}
if ( mSymbol->type() == QgsSymbol::Line || mSymbol->type() == QgsSymbol::Fill )
{
//add clip features option for line or fill symbols
btnAdvanced->menu()->addAction( mClipFeaturesAction );
}
if ( mSymbol->type() == QgsSymbol::Fill )
{
btnAdvanced->menu()->addAction( mStandardizeRingsAction );
}
btnAdvanced->setVisible( mAdvancedMenu || !btnAdvanced->menu()->isEmpty() );
whileBlocking( mClipFeaturesAction )->setChecked( mSymbol->clipFeaturesToExtent() );
whileBlocking( mStandardizeRingsAction )->setChecked( mSymbol->forceRHR() );
}