processing: enable translation for parameter descriptions

Author: jef-n

python/plugins/processing/algs/grass7/Grass7Algorithm.py

@@ -68,7 +68,7 @@
 
 from processing.core.ProcessingConfig import ProcessingConfig
 
-from processing.core.parameters import (getParameterFromString)
+from processing.core.parameters import getParameterFromString
 
 from .Grass7Utils import Grass7Utils
 
@@ -203,6 +203,7 @@ def defineCharacteristicsFromFile(self):
                 self._name = self.grass7Name
             else:
                 self._name = line[:line.find(' ')].lower()
+            self._short_description = QCoreApplication.translate("GrassAlgorithm", line)
             self._display_name = self._name
             # Read the grass group
             line = lines.readline().strip('\n').strip()
@@ -219,7 +220,7 @@ def defineCharacteristicsFromFile(self):
                     line = line.strip('\n').strip()
                     if line.startswith('Hardcoded'):
                         self.hardcodedStrings.append(line[len('Hardcoded|'):])
-                    parameter = getParameterFromString(line)
+                    parameter = getParameterFromString(line, "GrassAlgorithm")
                     if parameter is not None:
                         self.params.append(parameter)
                         if isinstance(parameter, (QgsProcessingParameterVectorLayer, QgsProcessingParameterFeatureSource)):

python/plugins/processing/algs/grass7/ext/i.py

@@ -182,7 +182,7 @@ def verifyRasterNum(alg, parameters, context, rasters, mini, maxi=None):
 #     alg.removeOutputFromName(output)
 
 #     # Create output parameter
-#     param = getParameterFromString("ParameterString|{}|output file|None|False|False".format(output))
+#     param = getParameterFromString("ParameterString|{}|output file|None|False|False".format(output), 'GrassAlgorithm')
 #     param.value = outputFile.value
 #     alg.addParameter(param)
 

python/plugins/processing/algs/otb/OtbAlgorithm.py

@@ -135,7 +135,7 @@ def defineCharacteristicsFromFile(self):
                         options = params[2].split(';')
                         param = OtbParameterChoice(params[0], params[1], options, params[3], params[4])
                     else:
-                        param = getParameterFromString(line)
+                        param = getParameterFromString(line, 'OtbAlgorithm')
 
                     #if parameter is None, then move to next line and continue
                     if param is None:

python/plugins/processing/algs/saga/SagaParameters.py

@@ -26,8 +26,7 @@
 
 __revision__ = '$Format:%H$'
 
-import os
-import importlib
+from qgis.PyQt.QtCore import QCoreApplication
 from qgis.core import QgsProcessingParameterRasterDestination
 from processing.core.parameters import getParameterFromString
 
@@ -70,6 +69,7 @@ def create_parameter_from_line(line):
                 params[3] = True if params[3].lower() == 'true' else False
             if len(params) > 4:
                 params[4] = True if params[4].lower() == 'true' else False
-            return SagaImageOutputParam(*params)
+            param = SagaImageOutputParam(*params)
+            param.setDescription(QCoreApplication.translate("SAGAAlgorithm", param.description()))
         else:
-            return getParameterFromString(line)
+            return getParameterFromString(line, "SAGAAlgorithm")

python/plugins/processing/core/parameters.py

@@ -89,7 +89,7 @@
 PARAMETER_RASTER_DESTINATION = 'rasterDestination'
 
 
-def getParameterFromString(s):
+def getParameterFromString(s, context):
     # Try the parameter definitions used in description files
     if '|' in s and (s.startswith("QgsProcessingParameter") or s.startswith("*QgsProcessingParameter") or s.startswith('Parameter') or s.startswith('*Parameter')):
         isAdvanced = False
@@ -244,6 +244,8 @@ def getParameterFromString(s):
             if isAdvanced:
                 param.setFlags(param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
 
+            param.setDescription(QCoreApplication.translate(context, param.description()))
+
             return param
         else:
             return None

scripts/processing2ui.pl

@@ -48,6 +48,13 @@ sub xmlescape {
 	my $name = scalar(<I>);
 	my $desc = scalar(<I>);
 	my $group = scalar(<I>);
+
+	while( my($class, $name, $description, $rest) = split /\|/, scalar(<I>) ) {
+		next unless defined $description;
+		$description =~ s/\s+$//;
+		$strings{"GrassAlgorithm"}{$description} = 1
+	}
+
 	close I;
 
 	chop $desc;
@@ -57,23 +64,16 @@ sub xmlescape {
 	$strings{"GrassAlgorithm"}{$group} = 1;
 }
 
-for my $f (<python/plugins/processing/algs/taudem/description/*/*.txt>) {
+for my $f (<python/plugins/processing/algs/saga/description/*/*.txt>) {
 	open I, $f;
 	my $desc = scalar(<I>);
-	my $name = scalar(<I>);
-	my $group = scalar(<I>);
-	close I;
 
-	chop $desc;
-	chop $group;
-
-	$strings{"TAUDEMAlgorithm"}{$desc} = 1;
-	$strings{"TAUDEMAlgorithm"}{$group} = 1;
-}
+	while( my($class, $name, $description, $rest) = split /\|/, scalar(<I>) ) {
+		next unless defined $description;
+		$description =~ s/\s+$//;
+		$strings{"SAGAAlgorithm"}{$description} = 1
+	}
 
-for my $f (<python/plugins/processing/algs/saga/description/*/*.txt>) {
-	open I, $f;
-	my $desc = scalar(<I>);
 	close I;
 
 	chop $desc;