[processing] add missed CRS parameter to modeler (refs #11781)

Author: alexbruy

python/plugins/processing/modeler/ModelerAlgorithm.py

@@ -51,6 +51,7 @@
                                         ParameterString,
                                         ParameterNumber,
                                         ParameterExtent,
+                                        ParameterCrs,
                                         ParameterDataObject,
                                         ParameterMultipleInput)
 from processing.tools import dataobjects

python/plugins/processing/modeler/ModelerParameterDefinitionDialog.py

@@ -28,7 +28,15 @@
 import math
 
 from qgis.PyQt.QtCore import Qt
-from qgis.PyQt.QtWidgets import QDialog, QVBoxLayout, QHBoxLayout, QLabel, QLineEdit, QComboBox, QCheckBox, QDialogButtonBox, QMessageBox
+from qgis.PyQt.QtWidgets import (QDialog,
+                                 QVBoxLayout,
+                                 QHBoxLayout,
+                                 QLabel,
+                                 QLineEdit,
+                                 QComboBox,
+                                 QCheckBox,
+                                 QDialogButtonBox,
+                                 QMessageBox)
 
 from processing.core.parameters import (Parameter,
                                         ParameterBoolean,
@@ -42,7 +50,9 @@
                                         ParameterExtent,
                                         ParameterFile,
                                         ParameterPoint,
+                                        ParameterCrs,
                                         ParameterTableMultipleField)
+from processing.gui.CrsSelectionPanel import CrsSelectionPanel
 
 
 class ModelerParameterDefinitionDialog(QDialog):
@@ -58,6 +68,7 @@ class ModelerParameterDefinitionDialog(QDialog):
     PARAMETER_EXTENT = 'Extent'
     PARAMETER_FILE = 'File'
     PARAMETER_POINT = 'Point'
+    PARAMETER_CRS = 'CRS'
 
     # To add
     PARAMETER_MULTIPLE = 'Multiple input'
@@ -74,7 +85,8 @@ class ModelerParameterDefinitionDialog(QDialog):
         PARAMETER_TABLE_FIELD,
         PARAMETER_TABLE_MULTIPLE_FIELD,
         PARAMETER_VECTOR,
-        PARAMETER_POINT
+        PARAMETER_POINT,
+        PARAMETER_CRS
     ]
 
     def __init__(self, alg, paramType=None, param=None):
@@ -234,6 +246,14 @@ def setupUi(self):
                 self.defaultTextBox.setText(self.param.default)
             self.horizontalLayoutParent.addWidget(self.defaultTextBox)
             self.verticalLayout.addLayout(self.horizontalLayoutParent)
+        elif self.paramType == ModelerParameterDefinitionDialog.PARAMETER_CRS or \
+                isinstance(self.param, ParameterCrs):
+            self.horizontalLayoutParent.addWidget(QLabel(self.tr('Default value')))
+            self.defaultTextBox = CrsSelectionPanel('EPSG:4326')
+            if self.param is not None:
+                self.defaultTextBox.setAuthId(self.param.default)
+            self.horizontalLayoutParent.addWidget(self.defaultTextBox)
+            self.verticalLayout.addLayout(self.horizontalLayoutParent)
 
         self.horizontalLayoutRequired.addWidget(QLabel(self.tr('Required')))
         self.yesNoCombo = QComboBox()
@@ -355,6 +375,9 @@ def okPressed(self):
                 isinstance(self.param, ParameterPoint):
             self.param = ParameterPoint(name, description,
                                         unicode(self.defaultTextBox.text()))
+        elif self.paramType == ModelerParameterDefinitionDialog.PARAMETER_CRS or \
+                isinstance(self.param, ParameterCrs):
+            self.param = ParameterCrs(name, description, self.defaultTextBox.getValue(), self.yesNoCombo.currentIndex() == 1)
         self.param.optional = self.yesNoCombo.currentIndex() == 1
         self.close()
 

python/plugins/processing/modeler/ModelerParametersDialog.py

@@ -383,7 +383,10 @@ def getWidgetFromParameter(self, param):
                 item.addItem(self.resolveValueDescription(n), n)
             item.setEditText(unicode(param.default))
         elif isinstance(param, ParameterCrs):
-            item = CrsSelectionPanel(param.default)
+            item = QComboBox()
+            values = self.getAvailableValuesOfType(ParameterCrs)
+            for v in values:
+                item.addItem(self.resolveValueDescription(v), v)
         elif isinstance(param, ParameterExtent):
             item = QComboBox()
             item.setEditable(True)
@@ -686,6 +689,15 @@ def setParamPointValue(self, alg, param, widget):
             alg.params[param.name] = value
         return True
 
+    def setParamCrsValue(self, alg, param, widget):
+        idx = widget.currentIndex()
+        if idx < 0:
+            return False
+        else:
+            value = widget.itemData(widget.currentIndex())
+            alg.params[param.name] = value
+            return True
+
     def setParamValue(self, alg, param, widget):
         if isinstance(param, (ParameterRaster, ParameterVector,
                               ParameterTable)):
@@ -714,11 +726,7 @@ def setParamValue(self, alg, param, widget):
             alg.params[param.name] = widget.getValue()
             return True
         elif isinstance(param, ParameterCrs):
-            authid = widget.getValue()
-            if authid is None and not param.optional:
-                return False
-            alg.params[param.name] = authid
-            return True
+            return self.setParamCrsValue(alg, param, widget)
         elif isinstance(param, ParameterFixedTable):
             table = widget.table
             if not bool(table) and not param.optional: