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qgsprocessingparameters.cpp
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qgsprocessingparameters.cpp
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/***************************************************************************
qgsprocessingparameters.cpp
---------------------------
begin : April 2017
copyright : (C) 2017 by Nyall Dawson
email : nyall dot dawson at gmail dot com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgsprocessingparameters.h"
#include "qgsprocessingcontext.h"
#include "qgsprocessingutils.h"
#include "qgsvectorlayerfeatureiterator.h"
bool QgsProcessingParameters::isDynamic( const QVariantMap ¶meters, const QString &name )
{
QVariant val = parameters.value( name );
if ( val.canConvert<QgsProperty>() )
return val.value< QgsProperty >().propertyType() != QgsProperty::StaticProperty;
else
return false;
}
QString QgsProcessingParameters::parameterAsString( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, const QgsProcessingContext &context )
{
if ( !definition )
return QString();
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
return val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
if ( !val.isValid() || val.toString().isEmpty() )
{
// fall back to default
val = definition->defaultValue();
}
return val.toString();
}
QString QgsProcessingParameters::parameterAsExpression( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, const QgsProcessingContext &context )
{
if ( !definition )
return QString();
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
return val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
if ( val.isValid() && !val.toString().isEmpty() )
{
QgsExpression e( val.toString() );
if ( e.isValid() )
return val.toString();
}
// fall back to default
return definition->defaultValue().toString();
}
double QgsProcessingParameters::parameterAsDouble( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, const QgsProcessingContext &context )
{
if ( !definition )
return 0;
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
return val.value< QgsProperty >().valueAsDouble( context.expressionContext(), definition->defaultValue().toDouble() );
bool ok = false;
double res = val.toDouble( &ok );
if ( ok )
return res;
// fall back to default
val = definition->defaultValue();
return val.toDouble();
}
int QgsProcessingParameters::parameterAsInt( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, const QgsProcessingContext &context )
{
if ( !definition )
return 0;
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
return val.value< QgsProperty >().valueAsInt( context.expressionContext(), definition->defaultValue().toInt() );
bool ok = false;
double dbl = val.toDouble( &ok );
if ( !ok )
{
// fall back to default
val = definition->defaultValue();
dbl = val.toDouble( &ok );
}
//String representations of doubles in QVariant will not convert to int
//work around this by first converting to double, and then checking whether the double is convertible to int
if ( ok )
{
double round = qgsRound( dbl );
if ( round > INT_MAX || round < -INT_MAX )
{
//double too large to fit in int
return 0;
}
return qRound( dbl );
}
return val.toInt();
}
int QgsProcessingParameters::parameterAsEnum( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, const QgsProcessingContext &context )
{
if ( !definition )
return 0;
int val = parameterAsInt( definition, parameters, context );
const QgsProcessingParameterEnum *enumDef = dynamic_cast< const QgsProcessingParameterEnum *>( definition );
if ( enumDef && val >= enumDef->options().size() )
{
return enumDef->defaultValue().toInt();
}
return val;
}
QList<int> QgsProcessingParameters::parameterAsEnums( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, const QgsProcessingContext &context )
{
if ( !definition )
return QList<int>();
QVariantList resultList;
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
resultList << val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
else if ( val.type() == QVariant::List )
{
Q_FOREACH ( const QVariant &var, val.toList() )
resultList << var;
}
else if ( val.type() == QVariant::String )
{
Q_FOREACH ( const QString &var, val.toString().split( ',' ) )
resultList << var;
}
else
resultList << val;
if ( ( !val.isValid() || !resultList.at( 0 ).isValid() ) && definition )
{
resultList.clear();
// check default
if ( definition->defaultValue().type() == QVariant::List )
{
Q_FOREACH ( const QVariant &var, definition->defaultValue().toList() )
resultList << var;
}
else if ( definition->defaultValue().type() == QVariant::String )
{
Q_FOREACH ( const QString &var, definition->defaultValue().toString().split( ',' ) )
resultList << var;
}
else
resultList << definition->defaultValue();
}
QList< int > result;
const QgsProcessingParameterEnum *enumDef = dynamic_cast< const QgsProcessingParameterEnum *>( definition );
Q_FOREACH ( const QVariant &var, resultList )
{
int resInt = var.toInt();
if ( !enumDef || resInt < enumDef->options().size() )
{
result << resInt;
}
}
return result;
}
bool QgsProcessingParameters::parameterAsBool( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, const QgsProcessingContext &context )
{
if ( !definition )
return false;
QVariant def = definition->defaultValue();
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
return val.value< QgsProperty >().valueAsBool( context.expressionContext(), def.toBool() );
else if ( val.isValid() )
return val.toBool();
else
return def.toBool();
}
QgsFeatureSink *QgsProcessingParameters::parameterAsSink( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, const QgsFields &fields,
QgsWkbTypes::Type geometryType, const QgsCoordinateReferenceSystem &crs,
QgsProcessingContext &context, QString &destinationIdentifier )
{
QVariant val;
if ( definition )
{
val = parameters.value( definition->name() );
}
QgsProject *destinationProject = nullptr;
QVariantMap createOptions;
if ( val.canConvert<QgsProcessingOutputLayerDefinition>() )
{
// input is a QgsProcessingOutputLayerDefinition - get extra properties from it
QgsProcessingOutputLayerDefinition fromVar = qvariant_cast<QgsProcessingOutputLayerDefinition>( val );
destinationProject = fromVar.destinationProject;
createOptions = fromVar.createOptions;
val = fromVar.sink;
}
QString dest;
if ( val.canConvert<QgsProperty>() )
{
dest = val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
}
else if ( !val.isValid() || val.toString().isEmpty() )
{
if ( definition && definition->flags() & QgsProcessingParameterDefinition::FlagOptional && !definition->defaultValue().isValid() )
{
// unset, optional sink, no default => no sink
return nullptr;
}
// fall back to default
dest = definition->defaultValue().toString();
}
else
{
dest = val.toString();
}
std::unique_ptr< QgsFeatureSink > sink( QgsProcessingUtils::createFeatureSink( dest, context, fields, geometryType, crs, createOptions ) );
destinationIdentifier = dest;
if ( destinationProject )
context.addLayerToLoadOnCompletion( destinationIdentifier, QgsProcessingContext::LayerDetails( definition ? definition->description() : QString(), destinationProject ) );
return sink.release();
}
QgsFeatureSource *QgsProcessingParameters::parameterAsSource( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return nullptr;
QVariant val = parameters.value( definition->name() );
bool selectedFeaturesOnly = false;
if ( val.canConvert<QgsProcessingFeatureSourceDefinition>() )
{
// input is a QgsProcessingFeatureSourceDefinition - get extra properties from it
QgsProcessingFeatureSourceDefinition fromVar = qvariant_cast<QgsProcessingFeatureSourceDefinition>( val );
selectedFeaturesOnly = fromVar.selectedFeaturesOnly;
val = fromVar.source;
}
QString layerRef;
if ( val.canConvert<QgsProperty>() )
{
layerRef = val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
}
else if ( !val.isValid() || val.toString().isEmpty() )
{
// fall back to default
layerRef = definition->defaultValue().toString();
}
else
{
layerRef = val.toString();
}
if ( layerRef.isEmpty() )
return nullptr;
QgsVectorLayer *vl = qobject_cast< QgsVectorLayer *>( QgsProcessingUtils::mapLayerFromString( layerRef, context ) );
if ( !vl )
return nullptr;
if ( selectedFeaturesOnly )
{
return new QgsProcessingFeatureSource( new QgsVectorLayerSelectedFeatureSource( vl ), context, true );
}
else
{
return new QgsProcessingFeatureSource( vl, context );
}
}
QgsMapLayer *QgsProcessingParameters::parameterAsLayer( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return nullptr;
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
{
val = val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
}
if ( QgsMapLayer *layer = qobject_cast< QgsMapLayer * >( qvariant_cast<QObject *>( val ) ) )
{
return layer;
}
if ( !val.isValid() || val.toString().isEmpty() )
{
// fall back to default
val = definition->defaultValue();
}
if ( QgsMapLayer *layer = qobject_cast< QgsMapLayer * >( qvariant_cast<QObject *>( val ) ) )
{
return layer;
}
QString layerRef = val.toString();
if ( layerRef.isEmpty() )
layerRef = definition->defaultValue().toString();
if ( layerRef.isEmpty() )
return nullptr;
return QgsProcessingUtils::mapLayerFromString( layerRef, context );
}
QgsRasterLayer *QgsProcessingParameters::parameterAsRasterLayer( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
return qobject_cast< QgsRasterLayer *>( parameterAsLayer( definition, parameters, context ) );
}
QString QgsProcessingParameters::parameterAsRasterOutputLayer( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
QVariant val;
if ( definition )
{
val = parameters.value( definition->name() );
}
QgsProject *destinationProject = nullptr;
QVariantMap createOptions;
if ( val.canConvert<QgsProcessingOutputLayerDefinition>() )
{
// input is a QgsProcessingOutputLayerDefinition - get extra properties from it
QgsProcessingOutputLayerDefinition fromVar = qvariant_cast<QgsProcessingOutputLayerDefinition>( val );
destinationProject = fromVar.destinationProject;
createOptions = fromVar.createOptions;
val = fromVar.sink;
}
QString dest;
if ( val.canConvert<QgsProperty>() )
{
dest = val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
}
else if ( !val.isValid() || val.toString().isEmpty() )
{
// fall back to default
dest = definition->defaultValue().toString();
}
else
{
dest = val.toString();
}
if ( destinationProject )
context.addLayerToLoadOnCompletion( dest, QgsProcessingContext::LayerDetails( definition ? definition->description() : QString(), destinationProject ) );
return dest;
}
QString QgsProcessingParameters::parameterAsFileOutput( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
QVariant val;
if ( definition )
{
val = parameters.value( definition->name() );
}
if ( val.canConvert<QgsProcessingOutputLayerDefinition>() )
{
// input is a QgsProcessingOutputLayerDefinition - get extra properties from it
QgsProcessingOutputLayerDefinition fromVar = qvariant_cast<QgsProcessingOutputLayerDefinition>( val );
val = fromVar.sink;
}
QString dest;
if ( val.canConvert<QgsProperty>() )
{
dest = val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
}
else if ( !val.isValid() || val.toString().isEmpty() )
{
// fall back to default
dest = definition->defaultValue().toString();
}
else
{
dest = val.toString();
}
return dest;
}
QgsVectorLayer *QgsProcessingParameters::parameterAsVectorLayer( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
return qobject_cast< QgsVectorLayer *>( parameterAsLayer( definition, parameters, context ) );
}
QgsCoordinateReferenceSystem QgsProcessingParameters::parameterAsCrs( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return QgsCoordinateReferenceSystem();
QString crsText = parameterAsString( definition, parameters, context );
if ( crsText.isEmpty() )
crsText = definition->defaultValue().toString();
if ( crsText.isEmpty() )
return QgsCoordinateReferenceSystem();
// maybe special string
if ( context.project() && crsText.compare( QStringLiteral( "ProjectCrs" ), Qt::CaseInsensitive ) == 0 )
return context.project()->crs();
// maybe a map layer reference
if ( QgsMapLayer *layer = QgsProcessingUtils::mapLayerFromString( crsText, context ) )
return layer->crs();
// else CRS from string
QgsCoordinateReferenceSystem crs;
crs.createFromString( crsText );
return crs;
}
QgsRectangle QgsProcessingParameters::parameterAsExtent( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return QgsRectangle();
QVariant val = parameters.value( definition->name() );
QString rectText;
if ( val.canConvert<QgsProperty>() )
rectText = val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
else
rectText = val.toString();
if ( rectText.isEmpty() )
return QgsRectangle();
QStringList parts = rectText.split( ',' );
if ( parts.count() == 4 )
{
bool xMinOk = false;
double xMin = parts.at( 0 ).toDouble( &xMinOk );
bool xMaxOk = false;
double xMax = parts.at( 1 ).toDouble( &xMaxOk );
bool yMinOk = false;
double yMin = parts.at( 2 ).toDouble( &yMinOk );
bool yMaxOk = false;
double yMax = parts.at( 3 ).toDouble( &yMaxOk );
if ( xMinOk && xMaxOk && yMinOk && yMaxOk )
return QgsRectangle( xMin, yMin, xMax, yMax );
}
// try as layer extent
if ( QgsMapLayer *layer = QgsProcessingUtils::mapLayerFromString( rectText, context ) )
return layer->extent();
return QgsRectangle();
}
QgsPointXY QgsProcessingParameters::parameterAsPoint( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return QgsPointXY();
QString pointText = parameterAsString( definition, parameters, context );
if ( pointText.isEmpty() )
pointText = definition->defaultValue().toString();
if ( pointText.isEmpty() )
return QgsPointXY();
QStringList parts = pointText.split( ',' );
if ( parts.count() == 2 )
{
bool xOk = false;
double x = parts.at( 0 ).toDouble( &xOk );
bool yOk = false;
double y = parts.at( 1 ).toDouble( &yOk );
if ( xOk && yOk )
return QgsPointXY( x, y );
}
return QgsPointXY();
}
QString QgsProcessingParameters::parameterAsFile( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return QString();
QString fileText = parameterAsString( definition, parameters, context );
if ( fileText.isEmpty() )
fileText = definition->defaultValue().toString();
return fileText;
}
QVariantList QgsProcessingParameters::parameterAsMatrix( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return QVariantList();
QString resultString;
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
resultString = val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
else if ( val.type() == QVariant::List )
return val.toList();
else
resultString = val.toString();
if ( resultString.isEmpty() )
{
// check default
if ( definition->defaultValue().type() == QVariant::List )
return definition->defaultValue().toList();
else
resultString = definition->defaultValue().toString();
}
QVariantList result;
Q_FOREACH ( const QString &s, resultString.split( ',' ) )
result << s;
return result;
}
QList<QgsMapLayer *> QgsProcessingParameters::parameterAsLayerList( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return QList<QgsMapLayer *>();
QVariant val = parameters.value( definition->name() );
if ( QgsMapLayer *layer = qobject_cast< QgsMapLayer * >( qvariant_cast<QObject *>( val ) ) )
{
return QList<QgsMapLayer *>() << layer;
}
QList<QgsMapLayer *> layers;
QStringList resultStringList;
if ( val.canConvert<QgsProperty>() )
resultStringList << val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
else if ( val.type() == QVariant::List )
{
Q_FOREACH ( const QVariant &var, val.toList() )
{
if ( QgsMapLayer *layer = qobject_cast< QgsMapLayer * >( qvariant_cast<QObject *>( var ) ) )
{
layers << layer;
}
else
{
resultStringList << var.toString();
}
}
}
else
resultStringList << val.toString();
if ( ( resultStringList.isEmpty() || resultStringList.at( 0 ).isEmpty() ) )
{
resultStringList.clear();
// check default
if ( QgsMapLayer *layer = qobject_cast< QgsMapLayer * >( qvariant_cast<QObject *>( definition->defaultValue() ) ) )
{
layers << layer;
}
else if ( definition->defaultValue().type() == QVariant::List )
{
Q_FOREACH ( const QVariant &var, definition->defaultValue().toList() )
{
if ( QgsMapLayer *layer = qobject_cast< QgsMapLayer * >( qvariant_cast<QObject *>( var ) ) )
{
layers << layer;
}
else
{
resultStringList << var.toString();
}
}
}
else
resultStringList << definition->defaultValue().toString();
}
Q_FOREACH ( const QString &s, resultStringList )
{
QgsMapLayer *layer = QgsProcessingUtils::mapLayerFromString( s, context );
if ( layer )
layers << layer;
}
return layers;
}
QList<double> QgsProcessingParameters::parameterAsRange( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return QList<double>();
QStringList resultStringList;
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
resultStringList << val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
else if ( val.type() == QVariant::List )
{
Q_FOREACH ( const QVariant &var, val.toList() )
resultStringList << var.toString();
}
else
resultStringList << val.toString();
if ( ( resultStringList.isEmpty() || ( resultStringList.size() == 1 && resultStringList.at( 0 ).isEmpty() ) ) )
{
resultStringList.clear();
// check default
if ( definition->defaultValue().type() == QVariant::List )
{
Q_FOREACH ( const QVariant &var, definition->defaultValue().toList() )
resultStringList << var.toString();
}
else
resultStringList << definition->defaultValue().toString();
}
if ( resultStringList.size() == 1 )
{
resultStringList = resultStringList.at( 0 ).split( ',' );
}
if ( resultStringList.size() < 2 )
return QList< double >() << 0.0 << 0.0;
return QList< double >() << resultStringList.at( 0 ).toDouble() << resultStringList.at( 1 ).toDouble();
}
QStringList QgsProcessingParameters::parameterAsFields( const QgsProcessingParameterDefinition *definition, const QVariantMap ¶meters, QgsProcessingContext &context )
{
if ( !definition )
return QStringList();
QStringList resultStringList;
QVariant val = parameters.value( definition->name() );
if ( val.canConvert<QgsProperty>() )
resultStringList << val.value< QgsProperty >().valueAsString( context.expressionContext(), definition->defaultValue().toString() );
else if ( val.type() == QVariant::List )
{
Q_FOREACH ( const QVariant &var, val.toList() )
resultStringList << var.toString();
}
else
resultStringList.append( val.toString().split( ';' ) );
if ( ( resultStringList.isEmpty() || resultStringList.at( 0 ).isEmpty() ) )
{
resultStringList.clear();
// check default
if ( definition->defaultValue().type() == QVariant::List )
{
Q_FOREACH ( const QVariant &var, definition->defaultValue().toList() )
resultStringList << var.toString();
}
else
resultStringList.append( definition->defaultValue().toString().split( ';' ) );
}
return resultStringList;
}
//
// QgsProcessingParameterDefinition
//
QgsProcessingParameterDefinition::QgsProcessingParameterDefinition( const QString &name, const QString &description, const QVariant &defaultValue, bool optional )
: mName( name )
, mDescription( description )
, mDefault( defaultValue )
, mFlags( optional ? FlagOptional : 0 )
{}
bool QgsProcessingParameterDefinition::checkValueIsAcceptable( const QVariant &input, QgsProcessingContext * ) const
{
if ( !input.isValid() )
return mFlags & FlagOptional;
if ( input.type() == QVariant::String && input.toString().isEmpty() )
return mFlags & FlagOptional;
return true;
}
QgsProcessingParameterBoolean::QgsProcessingParameterBoolean( const QString &name, const QString &description, const QVariant &defaultValue, bool optional )
: QgsProcessingParameterDefinition( name, description, defaultValue, optional )
{}
QgsProcessingParameterCrs::QgsProcessingParameterCrs( const QString &name, const QString &description, const QVariant &defaultValue, bool optional )
: QgsProcessingParameterDefinition( name, description, defaultValue, optional )
{
}
bool QgsProcessingParameterCrs::checkValueIsAcceptable( const QVariant &input, QgsProcessingContext * ) const
{
if ( !input.isValid() )
return mFlags & FlagOptional;
if ( input.canConvert<QgsProperty>() )
{
return true;
}
if ( input.type() != QVariant::String || input.toString().isEmpty() )
return mFlags & FlagOptional;
return true;
}
QgsProcessingParameterMapLayer::QgsProcessingParameterMapLayer( const QString &name, const QString &description, const QVariant &defaultValue, bool optional )
: QgsProcessingParameterDefinition( name, description, defaultValue, optional )
{
}
bool QgsProcessingParameterMapLayer::checkValueIsAcceptable( const QVariant &input, QgsProcessingContext *context ) const
{
if ( !input.isValid() )
return mFlags & FlagOptional;
if ( input.canConvert<QgsProperty>() )
{
return true;
}
if ( qobject_cast< QgsMapLayer * >( qvariant_cast<QObject *>( input ) ) )
{
return true;
}
if ( input.type() != QVariant::String || input.toString().isEmpty() )
return mFlags & FlagOptional;
if ( !context )
{
// that's as far as we can get without a context
return true;
}
// try to load as layer
if ( QgsProcessingUtils::mapLayerFromString( input.toString(), *context ) )
return true;
return false;
}
QgsProcessingParameterExtent::QgsProcessingParameterExtent( const QString &name, const QString &description, const QVariant &defaultValue, bool optional )
: QgsProcessingParameterDefinition( name, description, defaultValue, optional )
{
}
bool QgsProcessingParameterExtent::checkValueIsAcceptable( const QVariant &input, QgsProcessingContext *context ) const
{
if ( !input.isValid() )
return mFlags & FlagOptional;
if ( input.canConvert<QgsProperty>() )
{
return true;
}
if ( input.type() != QVariant::String || input.toString().isEmpty() )
return mFlags & FlagOptional;
if ( !context )
{
// that's as far as we can get without a context
return true;
}
QStringList parts = input.toString().split( ',' );
if ( parts.count() == 4 )
{
bool xMinOk = false;
( void )parts.at( 0 ).toDouble( &xMinOk );
bool xMaxOk = false;
( void )parts.at( 1 ).toDouble( &xMaxOk );
bool yMinOk = false;
( void )parts.at( 2 ).toDouble( &yMinOk );
bool yMaxOk = false;
( void )parts.at( 3 ).toDouble( &yMaxOk );
if ( xMinOk && xMaxOk && yMinOk && yMaxOk )
return true;
}
// try as layer extent
if ( QgsProcessingUtils::mapLayerFromString( input.toString(), *context ) )
return true;
return false;
}
QgsProcessingParameterPoint::QgsProcessingParameterPoint( const QString &name, const QString &description, const QVariant &defaultValue, bool optional )
: QgsProcessingParameterDefinition( name, description, defaultValue, optional )
{
}
bool QgsProcessingParameterPoint::checkValueIsAcceptable( const QVariant &input, QgsProcessingContext * ) const
{
if ( !input.isValid() )
return mFlags & FlagOptional;
if ( input.canConvert<QgsProperty>() )
{
return true;
}
if ( input.type() == QVariant::String )
{
if ( input.toString().isEmpty() )
return mFlags & FlagOptional;
}
QStringList parts = input.toString().split( ',' );
if ( parts.count() == 2 )
{
bool xOk = false;
( void )parts.at( 0 ).toDouble( &xOk );
bool yOk = false;
( void )parts.at( 1 ).toDouble( &yOk );
return xOk && yOk;
}
else
return false;
}
QgsProcessingParameterFile::QgsProcessingParameterFile( const QString &name, const QString &description, Behavior behavior, const QString &extension, const QVariant &defaultValue, bool optional )
: QgsProcessingParameterDefinition( name, description, defaultValue, optional )
, mBehavior( behavior )
, mExtension( extension )
{
}
bool QgsProcessingParameterFile::checkValueIsAcceptable( const QVariant &input, QgsProcessingContext * ) const
{
if ( !input.isValid() )
return mFlags & FlagOptional;
if ( input.canConvert<QgsProperty>() )
{
return true;
}
QString string = input.toString().trimmed();
if ( input.type() != QVariant::String || string.isEmpty() )
return mFlags & FlagOptional;
switch ( mBehavior )
{
case File:
{
if ( !mExtension.isEmpty() )
return string.endsWith( mExtension, Qt::CaseInsensitive );
return true;
}
case Folder:
return true;
}
return true;
}
QgsProcessingParameterMatrix::QgsProcessingParameterMatrix( const QString &name, const QString &description, int numberRows, bool fixedNumberRows, const QStringList &headers, const QVariant &defaultValue, bool optional )
: QgsProcessingParameterDefinition( name, description, defaultValue, optional )
, mHeaders( headers )
, mNumberRows( numberRows )
, mFixedNumberRows( fixedNumberRows )
{
}
bool QgsProcessingParameterMatrix::checkValueIsAcceptable( const QVariant &input, QgsProcessingContext * ) const
{
if ( !input.isValid() )
return mFlags & FlagOptional;
if ( input.type() == QVariant::String )
{
if ( input.toString().isEmpty() )
return mFlags & FlagOptional;
return true;
}
else if ( input.type() == QVariant::List )
{
if ( input.toList().isEmpty() )
return mFlags & FlagOptional;
return true;
}
else if ( input.type() == QVariant::Double || input.type() == QVariant::Int )
{
return true;
}
return false;
}
QStringList QgsProcessingParameterMatrix::headers() const
{
return mHeaders;
}
void QgsProcessingParameterMatrix::setHeaders( const QStringList &headers )
{
mHeaders = headers;
}
int QgsProcessingParameterMatrix::numberRows() const
{
return mNumberRows;
}
void QgsProcessingParameterMatrix::setNumberRows( int numberRows )
{
mNumberRows = numberRows;
}
bool QgsProcessingParameterMatrix::hasFixedNumberRows() const
{
return mFixedNumberRows;
}
void QgsProcessingParameterMatrix::setHasFixedNumberRows( bool fixedNumberRows )
{
mFixedNumberRows = fixedNumberRows;
}
QgsProcessingParameterMultipleLayers::QgsProcessingParameterMultipleLayers( const QString &name, const QString &description, LayerType layerType, const QVariant &defaultValue, bool optional )
: QgsProcessingParameterDefinition( name, description, defaultValue, optional )
, mLayerType( layerType )
{
}
bool QgsProcessingParameterMultipleLayers::checkValueIsAcceptable( const QVariant &input, QgsProcessingContext *context ) const
{
if ( !input.isValid() )
return mFlags & FlagOptional;
if ( qobject_cast< QgsMapLayer * >( qvariant_cast<QObject *>( input ) ) )
{
return true;
}
if ( input.type() == QVariant::String )
{
if ( input.toString().isEmpty() )
return mFlags & FlagOptional;
if ( mMinimumNumberInputs > 1 )
return false;
if ( !context )
return true;
return QgsProcessingUtils::mapLayerFromString( input.toString(), *context );
}
else if ( input.type() == QVariant::List )
{
if ( input.toList().count() < mMinimumNumberInputs )
return mFlags & FlagOptional;