[processing] added extent as output type and made it available in modeler

python/plugins/processing/core/GeoAlgorithm.py

@@ -322,7 +322,7 @@ class GeoAlgorithm:
     def setOutputValue(self, outputName, value):
         for out in self.outputs:
             if out.name == outputName:
-                out.value = value
+                out.setValue(value)
 
     def getVisibleOutputsCount(self):
         '''returns the number of non-hidden outputs'''

python/plugins/processing/modeler/ModelerParametersDialog.py

@@ -16,6 +16,7 @@
 *                                                                         *
 ***************************************************************************
 """
+from processing.outputs.OutputExtent import OutputExtent
 
 __author__ = 'Victor Olaya'
 __date__ = 'August 2012'
@@ -282,7 +283,23 @@ class ModelerParametersDialog(QtGui.QDialog):
         params = self.model.parameters
         for param in params:
             if isinstance(param, ParameterExtent):
-                extents.append(AlgorithmAndParameter(AlgorithmAndParameter.PARENT_MODEL_ALGORITHM, param.name, "", param.description))
+                extents.append(AlgorithmAndParameter(AlgorithmAndParameter.PARENT_MODEL_ALGORITHM, param.name, "", param.description))        
+        
+        
+        if self.algIndex is None:
+            dependent = []
+        else:
+            dependent = self.model.getDependentAlgorithms(self.algIndex)
+            #dependent.append(self.algIndex)
+
+        i=0
+        for alg in self.model.algs:
+            if i not in dependent:
+                for out in alg.outputs:
+                    if isinstance(out, OutputExtent):
+                        extents.append(AlgorithmAndParameter(i, out.name, alg.name, out.description))
+            i+=1
+        
         return extents
 
     def getNumbers(self):

python/plugins/processing/modeler/VectorLayerBoundsAlgorithm.py

@@ -16,6 +16,7 @@
 *                                                                         *
 ***************************************************************************
 """
+from processing.outputs.OutputExtent import OutputExtent
 __author__ = 'Victor Olaya'
 __date__ = 'January 2013'
 __copyright__ = '(C) 2012, Victor Olaya'
@@ -34,6 +35,7 @@ class VectorLayerBoundsAlgorithm(GeoAlgorithm):
     XMAX = "XMAX"
     YMIN = "YMIN"
     YMAX = "YMAX"
+    EXTENT = "EXTENT"
 
     def defineCharacteristics(self):
         self.showInModeler = True
@@ -45,6 +47,7 @@ class VectorLayerBoundsAlgorithm(GeoAlgorithm):
         self.addOutput(OutputNumber(self.XMAX, "max X"))
         self.addOutput(OutputNumber(self.YMIN, "min Y"))
         self.addOutput(OutputNumber(self.YMAX, "max Y"))
+        self.addOutput(OutputExtent(self.EXTENT, "Extent"))
 
     def processAlgorithm(self, progress):
         uri = self.getParameterValue(self.LAYER)
@@ -53,4 +56,6 @@ class VectorLayerBoundsAlgorithm(GeoAlgorithm):
         self.setOutputValue(self.XMAX, layer.extent().xMaximum())
         self.setOutputValue(self.YMIN, layer.extent().yMinimum())
         self.setOutputValue(self.YMAX, layer.extent().yMaximum())
+        self.setOutputValue(self.EXTENT, 
+                            (layer.extent().xMinimum(), layer.extent().xMaximum(), layer.extent().yMinimum(), layer.extent().yMaximum()))
 

python/plugins/processing/outputs/OutputExtent.py

@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+
+"""
+***************************************************************************
+    OutputNumber.py
+    ---------------------
+    Date                 : August 2012
+    Copyright            : (C) 2012 by Victor Olaya
+    Email                : volayaf 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.                                   *
+*                                                                         *
+***************************************************************************
+"""
+
+__author__ = 'Victor Olaya'
+__date__ = 'August 2012'
+__copyright__ = '(C) 2012, Victor Olaya'
+# This will get replaced with a git SHA1 when you do a git archive
+__revision__ = '$Format:%H$'
+
+from processing.outputs.Output import Output
+
+class OutputExtent(Output):
+
+    def __init__(self, name="", description=""):
+        self.name = name
+        self.description = description
+        self.value = None
+        self.hidden = True
+        
+    def setValue(self, value):
+        try:
+            if value != None and isinstance(value, basestring):
+                value = value.strip()
+            else:
+                self.value = ",".join([str(v) for v in value])
+            return True
+        except:
+            return False