[processing] add full i18n support (still needs some work to mark all

strings as translatable)

python/plugins/processing/core/AlgorithmProvider.py

@@ -26,7 +26,7 @@
 __revision__ = '$Format:%H$'
 
 import os
-from PyQt4 import QtGui
+from PyQt4 import QtGui, QtCore
 from qgis.core import *
 from processing.core.ProcessingConfig import Setting, ProcessingConfig
 
@@ -77,7 +77,7 @@ def initializeSettings(self):
         ProcessingConfig.settingIcons[self.getDescription()] = self.getIcon()
         name = 'ACTIVATE_' + self.getName().upper().replace(' ', '_')
         ProcessingConfig.addSetting(Setting(self.getDescription(), name,
-                                    'Activate', self.activate))
+                                    self.tr('Activate'), self.activate))
 
     def unload(self):
         """Do here anything that you want to be done when the provider
@@ -98,7 +98,7 @@ def getName(self):
     def getDescription(self):
         """Returns the full name of the provider.
         """
-        return 'Generic algorithm provider'
+        return self.tr('Generic algorithm provider')
 
     def getIcon(self):
         return QtGui.QIcon(os.path.dirname(__file__) + '/../images/alg.png')
@@ -122,3 +122,8 @@ def getSupportedOutputTableExtensions(self):
 
     def supportsNonFileBasedOutput(self):
         return False
+
+    def tr(self, string, context=''):
+        if context == '':
+            context = 'AlgorithmProvider'
+        return QtCore.QCoreApplication.translate(context, string)

python/plugins/processing/core/GeoAlgorithm.py

@@ -220,7 +220,7 @@ def execute(self, progress=None, model=None):
         except Exception, e:
             # If something goes wrong and is not caught in the
             # algorithm, we catch it here and wrap it
-            lines = ['Uncaught error while executing algorithm']
+            lines = [self.tr('Uncaught error while executing algorithm')]
             errstring = traceback.format_exc()
             newline = errstring.find('\n')
             if newline != -1:
@@ -230,7 +230,7 @@ def execute(self, progress=None, model=None):
             lines.append(errstring.replace('\n', '|'))
             ProcessingLog.addToLog(ProcessingLog.LOG_ERROR, lines)
             raise GeoAlgorithmExecutionException(str(e)
-                    + '\nSee log for more details')
+                    + self.tr('\nSee log for more details'))
 
     def runPostExecutionScript(self, progress):
         scriptFile = ProcessingConfig.getSetting(
@@ -262,7 +262,7 @@ def runHookScript(self, filename, progress):
 
     def convertUnsupportedFormats(self, progress):
         i = 0
-        progress.setText('Converting outputs')
+        progress.setText(self.tr('Converting outputs'))
         for out in self.outputs:
             if isinstance(out, OutputVector):
                 if out.compatible is not None:
@@ -516,15 +516,20 @@ def getPostProcessingErrorMessage(self, wrongLayers):
                          loaded.
         """
 
-        html = '<p>Oooops! The following output layers could not be \
-                open</p><ul>\n'
+        html = self.tr('<p>Oooops! The following output layers could not be '
+                       'open</p><ul>\n')
         for layer in wrongLayers:
-            html += '<li>' + layer.description \
-                + ': <font size=3 face="Courier New" color="#ff0000">' \
-                + layer.value + '</font></li>\n'
-        html += '</ul><p>The above files could not be opened, which probably \
-                 indicates that they were not correctly produced by the \
-                 executed algorithm</p>'
-        html += '<p>Checking the log information might help you see why those \
-                 layers were not created as expected</p>'
+            html += self.tr('<li>%s: <font size=3 face="Courier New" '
+                            'color="#ff0000">%s</font></li>\n') % \
+                    (layer.description, layer.value)
+        html += self.tr('</ul><p>The above files could not be opened, which '
+                        'probably indicates that they were not correctly '
+                        'produced by the executed algorithm</p>'
+                        '<p>Checking the log information might help you see'
+                        'why those layers were not created as expected</p>')
         return html
+
+    def tr(self, string, context=''):
+        if context == '':
+            context = 'GeoAlgorithm'
+        return QtCore.QCoreApplication.translate(context, string)

python/plugins/processing/core/Processing.py

@@ -27,11 +27,14 @@
 __revision__ = '$Format:%H$'
 
 import sys
+
 from PyQt4.QtCore import *
 from PyQt4.QtGui import *
+
 from qgis.core import *
-import processing
 from qgis.utils import iface
+
+import processing
 from processing.modeler.ModelerUtils import ModelerUtils
 from processing.core.ProcessingConfig import ProcessingConfig
 from processing.core.GeoAlgorithm import GeoAlgorithm
@@ -92,9 +95,8 @@ def addProvider(provider, updateList=False):
                 Processing.updateAlgsList()
         except:
             ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
-                                   'Could not load provider:'
-                                   + provider.getDescription() + '\n'
-                                   + unicode(sys.exc_info()[1]))
+                                   self.tr('Could not load provider: %s\n%s')
+                                   % (provider.getDescription(), unicode(sys.exc_info()[1])))
             Processing.removeProvider(provider)
 
     @staticmethod
@@ -281,15 +283,17 @@ def runAlgorithm(algOrName, onFinish, *args):
                     continue
                 print 'Error: Wrong parameter value %s for parameter %s.' \
                     % (value, name)
-                ProcessingLog.addToLog(ProcessingLog.LOG_ERROR, "Error in %s. Wrong parameter value %s for parameter %s." \
+                ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
+                    self.tr("Error in %s. Wrong parameter value %s for parameter %s.") \
                     % (alg.name, value, name))
                 return
             # fill any missing parameters with default values if allowed
             for param in alg.parameters:
                 if param.name not in setParams:
                     if not param.setValue(None):
                         print ("Error: Missing parameter value for parameter %s." % (param.name))
-                        ProcessingLog.addToLog(ProcessingLog.LOG_ERROR, "Error in %s. Missing parameter value for parameter %s." \
+                        ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
+                            self.tr("Error in %s. Missing parameter value for parameter %s.") \
                             % (alg.name, param.name))
                         return
         else:
@@ -343,3 +347,9 @@ def runAlgorithm(algOrName, onFinish, *args):
           QApplication.restoreOverrideCursor()
           progress.close()
         return alg
+
+    def tr(self, string, context=''):
+        if context == '':
+            context = 'Processing'
+        return QtCore.QCoreApplication.translate(context, string)
+

python/plugins/processing/core/outputs.py

@@ -83,9 +83,16 @@ def setValue(self, value):
     def outputTypeName(self):
         return self.__module__.split('.')[-1]
 
+    def tr(self, string, context=''):
+        if context == '':
+            context = 'Output'
+        return QCoreApplication.translate(context, string)
+
+
 class OutputDirectory(Output):
     directory = True
 
+
 class OutputExtent(Output):
 
     def __init__(self, name='', description=''):
@@ -104,6 +111,7 @@ def setValue(self, value):
         except:
             return False
 
+
 class OutputFile(Output):
 
     def __init__(self, name='', description='', ext = None):
@@ -112,17 +120,18 @@ def __init__(self, name='', description='', ext = None):
 
     def getFileFilter(self, alg):
         if self.ext is None:
-            return 'All files(*.*)'
+            return self.tr('All files(*.*)', 'OutputFile')
         else:
-            return '%s files(*.%s)' % (self.ext, self.ext)
+            return self.tr('%s files(*.%s)', 'OutputFile') % (self.ext, self.ext)
 
     def getDefaultFileExtension(self, alg):
         return self.ext or 'file'
 
+
 class OutputHTML(Output):
 
     def getFileFilter(self, alg):
-        return 'HTML files(*.html)'
+        return self.tr('HTML files(*.html)', 'OutputHTML')
 
     def getDefaultFileExtension(self, alg):
         return 'html'
@@ -136,6 +145,7 @@ def __init__(self, name='', description=''):
         self.value = None
         self.hidden = True
 
+
 class OutputRaster(Output):
 
     compatible = None
@@ -149,7 +159,7 @@ def getFileFilter(self, alg):
             # use extensions given by the algorithm provider
             exts = providerExts
         for i in range(len(exts)):
-            exts[i] = exts[i].upper() + ' files(*.' + exts[i].lower() + ')'
+            exts[i] = self.tr('%s files(*.%s)', 'OutputRaster') % (exts[i].upper(), exts[i].lower())
         return ';;'.join(exts)
 
     def getDefaultFileExtension(self, alg):
@@ -174,6 +184,7 @@ def getCompatibleFileName(self, alg):
                         + self.getDefaultFileExtension(alg))
             return self.compatible
 
+
 class OutputString(Output):
 
     def __init__(self, name='', description=''):
@@ -182,6 +193,7 @@ def __init__(self, name='', description=''):
         self.value = None
         self.hidden = True
 
+
 class OutputTable(Output):
 
     encoding = None
@@ -241,7 +253,7 @@ class OutputVector(Output):
     def getFileFilter(self, alg):
         exts = dataobjects.getSupportedOutputVectorLayerExtensions()
         for i in range(len(exts)):
-            exts[i] = exts[i].upper() + ' files(*.' + exts[i].lower() + ')'
+            self.tr('%s files(*.%s)', 'OutputVector') % (exts[i].upper(), exts[i].lower())
         return ';;'.join(exts)
 
     def getDefaultFileExtension(self, alg):
@@ -287,7 +299,7 @@ def getVectorWriter(self, fields, geomType, crs, options=None):
 
         if self.encoding is None:
             settings = QSettings()
-            self.encoding = settings.value('/Processing/encoding', 'System', type=str)
+            self.encoding = settings.value('/Processing/encoding', 'System', str)
 
         w = VectorWriter(self.value, self.encoding, fields, geomType,
                          crs, options)

python/plugins/processing/core/parameters.py

@@ -27,8 +27,11 @@
 __revision__ = '$Format:%H$'
 
 import sys
-from processing.tools.system import *
+
+from PyQt4.QtCore import *
 from qgis.core import *
+
+from processing.tools.system import *
 from processing.tools import dataobjects
 
 
@@ -38,6 +41,7 @@ def getParameterFromString(s):
     clazz = getattr(sys.modules[__name__], tokens[0])
     return clazz(*params)
 
+
 def parseBool(s):
     if s == unicode(None):
         return None
@@ -89,6 +93,11 @@ def parameterName(self):
     def todict(self):
         return self.__dict__
 
+    def tr(self, string, context=''):
+        if context == '':
+            context = 'Parameter'
+        return QtCore.QCoreApplication.translate(context, string)
+
 
 class ParameterBoolean(Parameter):
 
@@ -140,6 +149,7 @@ def getValueAsCommandLineParameter(self):
             else:
                 return '"' + unicode(self.value).replace('\\', '\\\\') + '"'
 
+
 class ParameterExtent(Parameter):
 
     USE_MIN_COVERING_EXTENT = 'USE_MIN_COVERING_EXTENT'
@@ -170,6 +180,7 @@ def setValue(self, text):
     def getValueAsCommandLineParameter(self):
         return '"' + unicode(self.value) + '"'
 
+
 class ParameterFile(Parameter):
 
     def __init__(self, name='', description='', isFolder=False, optional=True, ext = None):
@@ -193,6 +204,7 @@ def setValue(self, obj):
             return self.value.endswith(self.ext)
         return True
 
+
 class ParameterFixedTable(Parameter):
 
     def __init__(self, name='', description='', numRows=3,
@@ -348,11 +360,11 @@ def getFileFilter(self):
         if self.datatype == ParameterMultipleInput.TYPE_RASTER:
             exts = dataobjects.getSupportedOutputRasterLayerExtensions()
         elif self.datatype == ParameterMultipleInput.TYPE_FILE:
-            return "All files (*.*)"
+            return self.tr('All files (*.*)', 'ParameterMultipleInput')
         else:
             exts = dataobjects.getSupportedOutputVectorLayerExtensions()
         for i in range(len(exts)):
-            exts[i] = exts[i].upper() + ' files(*.' + exts[i].lower() + ')'
+            exts[i] = self.tr('%s files(*.%s', 'ParameterMultipleInput') % (exts[i].upper(), exts[i].lower())
         return ';;'.join(exts)
 
 
@@ -483,11 +495,10 @@ def setValue(self, obj):
     def getFileFilter(self):
         exts = dataobjects.getSupportedOutputRasterLayerExtensions()
         for i in range(len(exts)):
-            exts[i] = exts[i].upper() + ' files(*.' + exts[i].lower() + ')'
+            exts[i] = self.tr('%s files(*.%s', 'ParameterRaster') % (exts[i].upper(), exts[i].lower())
         return ';;'.join(exts)
 
 
-
 class ParameterSelection(Parameter):
 
     def __init__(self, name='', description='', options=[], default=0):
@@ -539,7 +550,6 @@ def getValueAsCommandLineParameter(self):
                              ParameterString.ESCAPED_NEWLINE)) + '"'
 
 
-
 class ParameterTable(ParameterDataObject):
 
     def __init__(self, name='', description='', optional=False):
@@ -602,9 +612,10 @@ def getSafeExportedTable(self):
     def getFileFilter(self):
         exts = ['csv', 'dbf']
         for i in range(len(exts)):
-            exts[i] = exts[i].upper() + ' files(*.' + exts[i].lower() + ')'
+            exts[i] = self.tr('%s files(*.%s', 'ParameterTable') % (exts[i].upper(), exts[i].lower())
         return ';;'.join(exts)
 
+
 class ParameterTableField(Parameter):
 
     DATA_TYPE_NUMBER = 0
@@ -631,13 +642,9 @@ def setValue(self, value):
             return self.optional
         return True
 
-
     def __str__(self):
         return self.name + ' <' + self.__module__.split('.')[-1] + ' from ' \
             + self.parent + '>'
-# -*- coding: utf-8 -*-
-
-
 
 
 class ParameterVector(ParameterDataObject):
@@ -714,5 +721,5 @@ def getSafeExportedLayer(self):
     def getFileFilter(self):
         exts = dataobjects.getSupportedOutputVectorLayerExtensions()
         for i in range(len(exts)):
-            exts[i] = exts[i].upper() + ' files(*.' + exts[i].lower() + ')'
+            exts[i] = self.tr('%s files(*.%s', 'ParameterVector') % (exts[i].upper(), exts[i].lower())
         return ';;'.join(exts)