trying to add missing parameter in modeler

qgis · May 4, 2018 · 94ad859 · 94ad859
1 parent 9b22d99
commit 94ad859
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diff --git a/src/core/processing/qgsprocessingparametertypeimpl.h b/src/core/processing/qgsprocessingparametertypeimpl.h
@@ -115,6 +115,36 @@ class CORE_EXPORT QgsProcessingParameterTypeBoolean : public QgsProcessingParame
     }
 };
 
+/**
+ * An expression parameter for processing algorithms.
+ *
+ * \since QGIS 3.2
+ * \ingroup core
+ * \note No Python bindings available. Get your copy from QgsApplication.processingRegistry().parameterType()
+ */
+class CORE_EXPORT QgsProcessingParameterTypeExpression : public QgsProcessingParameterType
+{
+    virtual QgsProcessingParameterDefinition *create( const QString &name ) const override SIP_FACTORY
+    {
+      return new QgsProcessingParameterExpression( name );
+    }
+
+    virtual QString description() const override
+    {
+      return QCoreApplication::translate( "Processing", "An expression parameter, to add custom expressions based on layer fields." );
+    }
+
+    virtual QString name() const override
+    {
+      return QCoreApplication::translate( "Processing", "Expression" );
+    }
+
+    virtual QString id() const override
+    {
+      return QStringLiteral( "expression" );
+    }
+};
+
 /**
  * A crs parameter for processing algorithms.
  *

diff --git a/src/core/processing/qgsprocessingregistry.cpp b/src/core/processing/qgsprocessingregistry.cpp
@@ -25,6 +25,7 @@ QgsProcessingRegistry::QgsProcessingRegistry( QObject *parent SIP_TRANSFERTHIS )
   addParameterType( new QgsProcessingParameterTypeRasterLayer() );
   addParameterType( new QgsProcessingParameterTypeVectorLayer() );
   addParameterType( new QgsProcessingParameterTypeBoolean() );
+  addParameterType( new QgsProcessingParameterTypeExpression() );
   addParameterType( new QgsProcessingParameterTypeCrs() );
   addParameterType( new QgsProcessingParameterTypeRange() );
   addParameterType( new QgsProcessingParameterTypePoint() );
@@ -42,6 +43,7 @@ QgsProcessingRegistry::QgsProcessingRegistry( QObject *parent SIP_TRANSFERTHIS )
   addParameterType( new QgsProcessingParameterTypeFeatureSource() );
   addParameterType( new QgsProcessingParameterTypeNumber() );
   addParameterType( new QgsProcessingParameterTypeDistance() );
+  addParameterType( new QgsProcessingParameterTypeBand() );
 }
 
 QgsProcessingRegistry::~QgsProcessingRegistry()