Nicer display of rectangle parameter values

python/plugins/processing/gui/AlgorithmDialog.py

@@ -216,7 +216,10 @@ def accept(self):
                 self.tr('<b>Algorithm \'{0}\' starting...</b>').format(self.alg.displayName()), escape_html=False)
 
             feedback.pushInfo(self.tr('Input parameters:'))
-            feedback.pushCommandInfo(pformat(parameters))
+            display_params = []
+            for k, v in parameters.items():
+                display_params.append( "'" + k + "' : " + self.alg.parameterDefinition(k).valueAsPythonString(v,context))
+            feedback.pushCommandInfo('{ ' + ', '.join(display_params) + ' }')
             feedback.pushInfo('')
             start_time = time.time()
 

src/core/processing/qgsprocessingparameters.cpp

@@ -1195,6 +1195,23 @@ QString QgsProcessingParameterExtent::valueAsPythonString( const QVariant &value
   if ( value.canConvert<QgsProperty>() )
     return QStringLiteral( "QgsProperty.fromExpression('%1')" ).arg( value.value< QgsProperty >().asExpression() );
 
+  if ( value.canConvert< QgsRectangle >() )
+  {
+    QgsRectangle r = value.value<QgsRectangle>();
+    return QStringLiteral( "QgsRectangle( %1, %2, %3, %4 )" ).arg( qgsDoubleToString( r.xMinimum() ),
+           qgsDoubleToString( r.yMinimum() ),
+           qgsDoubleToString( r.xMaximum() ),
+           qgsDoubleToString( r.yMaximum() ) );
+  }
+  if ( value.canConvert< QgsReferencedRectangle >() )
+  {
+    QgsReferencedRectangle r = value.value<QgsReferencedRectangle>();
+    return QStringLiteral( "QgsReferencedRectangle( QgsRectangle( %1, %2, %3, %4 ), QgsCoordinateReferenceSystem( '%5' ) )" ).arg( qgsDoubleToString( r.xMinimum() ),
+           qgsDoubleToString( r.yMinimum() ),
+           qgsDoubleToString( r.xMaximum() ),
+           qgsDoubleToString( r.yMaximum() ),                                                                                                                             r.crs().authid() );
+  }
+
   QVariantMap p;
   p.insert( name(), value );
   QgsMapLayer *layer = QgsProcessingParameters::parameterAsLayer( this, p, context );

tests/src/core/testqgsprocessing.cpp

@@ -1932,6 +1932,8 @@ void TestQgsProcessing::parameterExtent()
   QCOMPARE( def->valueAsPythonString( QVariant::fromValue( r1 ), context ), QString( "'" ) + testDataDir + QStringLiteral( "tenbytenraster.asc'" ) );
   QCOMPARE( def->valueAsPythonString( raster2, context ), QString( "'" ) + testDataDir + QStringLiteral( "landsat.tif'" ) );
   QCOMPARE( def->valueAsPythonString( QVariant::fromValue( QgsProperty::fromExpression( "\"a\"=1" ) ), context ), QStringLiteral( "QgsProperty.fromExpression('\"a\"=1')" ) );
+  QCOMPARE( def->valueAsPythonString( QgsRectangle( 11.1, 12.2, 13.3, 14.4 ), context ), QStringLiteral( "QgsRectangle( 11.1, 12.2, 13.3, 14.4 )" ) );
+  QCOMPARE( def->valueAsPythonString( QgsReferencedRectangle( QgsRectangle( 11.1, 12.2, 13.3, 14.4 ), QgsCoordinateReferenceSystem( "epsg:4326" ) ), context ), QStringLiteral( "QgsReferencedRectangle( QgsRectangle( 11.1, 12.2, 13.3, 14.4 ), QgsCoordinateReferenceSystem( 'EPSG:4326' ) )" ) );
 
   QString code = def->asScriptCode();
   QCOMPARE( code, QStringLiteral( "##non_optional=extent 1,2,3,4" ) );