tests, project store and other

not yet working all translations
project handling can be improved
project store after translation working
and fix some errors
tests not ready yet

python/core/auto_generated/qgseditformconfig.sip.in

@@ -264,7 +264,7 @@ Write XML information
 Serialize on project save
 %End
 
-    QgsAttributeEditorElement *attributeEditorElementFromDomElement( QDomElement &elem, QgsAttributeEditorElement *parent );
+    QgsAttributeEditorElement *attributeEditorElementFromDomElement( QDomElement &elem, QgsAttributeEditorElement *parent, const QString &layerId = 0 );
 %Docstring
 Deserialize drag and drop designer elements.
 %End

python/core/auto_generated/qgsproject.sip.in

@@ -135,6 +135,14 @@ Returns last modified time of the project file as returned by the file system (o
 Returns full absolute path to the project file if the project is stored in a file system - derived from fileName().
 Returns empty string when the project is stored in a project storage (there is no concept of paths for custom project storages).
 
+.. versionadded:: 3.2
+%End
+
+    QString absolutePath() const;
+%Docstring
+Returns full absolute path to the project folder if the project is stored in a file system - derived from fileName().
+Returns empty string when the project is stored in a project storage (there is no concept of paths for custom project storages).
+
 .. versionadded:: 3.2
 %End
 
@@ -983,6 +991,25 @@ and it is mainly a hint for the user interface to protect users from removing la
 in the project. The removeMapLayer(), removeMapLayers() calls do not block removal of layers listed here.
 
 .. versionadded:: 3.2
+%End
+
+    void generateTsFile( const QString &locale );
+%Docstring
+Triggers the collection strings of .qgs to be included in ts file and calls writeTsFile()
+
+.. versionadded:: 3.2
+%End
+
+    QString translate( const QString &context, const QString &sourceText, const char *disambiguation = 0, int n = -1 );
+%Docstring
+Translates the project with QTranslator and qm file
+
+:return: the result string (in case there is no QTranslator loaded the sourceText)
+
+:param context: describing layer etc.
+:param sourceText: is the identifier of this text
+:param disambiguation: it's the disambiguation
+:param n: if -1 uses the appropriate form
 %End
 
   signals:
@@ -1335,6 +1362,16 @@ home path will be automatically determined from the project's file path.
 .. seealso:: :py:func:`homePathChanged`
 
 .. versionadded:: 3.2
+%End
+
+    void registerTranslatableObjects( QgsTranslationContext *translationContext );
+%Docstring
+Registers the translatable objects into the tranlationContext
+so there can be created a ts file these values
+
+.. versionadded:: 3.2
+
+:param translationContext: where the objects will be registered
 %End
 
 };

python/core/auto_generated/qgstranslationcontext.sip.in

@@ -0,0 +1,79 @@
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/core/qgstranslationcontext.h                                     *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/
+
+
+
+
+class QgsTranslationContext
+{
+%Docstring
+ used for the collecting of strings of .qgs to be translated and writing of ts file
+
+.. versionadded:: 3.2
+%End
+
+%TypeHeaderCode
+#include "qgstranslationcontext.h"
+%End
+  public:
+
+    QgsTranslationContext( );
+%Docstring
+Constructor
+%End
+
+    QgsProject *project() const;
+%Docstring
+Returns the project
+
+.. seealso:: :py:func:`setProject`
+%End
+
+    void setProject( QgsProject *project );
+%Docstring
+Sets the ``project`` where the translation need to be done for
+
+.. seealso:: :py:func:`project`
+%End
+
+    QString fileName() const;
+%Docstring
+Returns the TS fileName
+
+.. seealso:: :py:func:`setFileName`
+%End
+
+    void setFileName( const QString &fileName );
+%Docstring
+Sets the ``name`` of the TS file
+
+.. seealso:: :py:func:`fileName`
+%End
+
+    void registerTranslation( const QString &context, const QString &source );
+%Docstring
+Registers the ``string`` to be translated
+
+:param translationString: name and path of the object need to be translated
+:param layerName: the name of the layer
+%End
+
+    void writeTsFile( );
+%Docstring
+Writes the Ts-file
+%End
+
+};
+
+/************************************************************************
+ * This file has been generated automatically from                      *
+ *                                                                      *
+ * src/core/qgstranslationcontext.h                                     *
+ *                                                                      *
+ * Do not edit manually ! Edit header and run scripts/sipify.pl again   *
+ ************************************************************************/

python/core/core_auto.sip

@@ -352,6 +352,7 @@
 %Include auto_generated/qgssnappingconfig.sip
 %Include auto_generated/qgstaskmanager.sip
 %Include auto_generated/qgstolerance.sip
+%Include auto_generated/qgstranslationcontext.sip
 %Include auto_generated/qgstrackedvectorlayertools.sip
 %Include auto_generated/qgstransaction.sip
 %Include auto_generated/qgstransactiongroup.sip

src/app/qgisapp.cpp

@@ -5950,10 +5950,10 @@ void QgisApp::fileSaveAs()
     return;
 
   QFileInfo fullPath( path );
-
   settings.setValue( QStringLiteral( "UI/lastProjectDir" ), fullPath.path() );
 
   if ( filter == zipExt )
+
   {
     if ( fullPath.suffix().compare( QLatin1String( "qgz" ), Qt::CaseInsensitive ) != 0 )
       fullPath.setFile( fullPath.filePath() + ".qgz" );

src/app/qgsprojectproperties.cpp

@@ -830,6 +830,7 @@ QgsProjectProperties::QgsProjectProperties( QgsMapCanvas *mapCanvas, QWidget *pa
   connect( mMetadataWidget, &QgsMetadataWidget::titleChanged, titleEdit, &QLineEdit::setText );
   connect( titleEdit, &QLineEdit::textChanged, mMetadataWidget, &QgsMetadataWidget::setTitle );
 
+  connect( generateTsFileButton, &QPushButton::clicked, this, &QgsProjectProperties::generateTsFileButton_clicked );
   projectionSelectorInitialized();
   populateRequiredLayers();
   restoreOptionsBaseUi();
@@ -2190,3 +2191,8 @@ void QgsProjectProperties::setCurrentPage( const QString &pageWidgetName )
     }
   }
 }
+
+void QgsProjectProperties::generateTsFileButton_clicked()
+{
+  QgsProject::instance()->generateTsFile( "de" );
+}

src/app/qgsprojectproperties.h

@@ -92,6 +92,9 @@ class APP_EXPORT QgsProjectProperties : public QgsOptionsDialogBase, private Ui:
     //! A scale in the list of project scales changed
     void scaleItemChanged( QListWidgetItem *changedScaleItem );
 
+    //dave to document
+    void generateTsFileButton_clicked();
+
     /**
      * Set WMS default extent to current canvas extent
      */

src/core/qgseditformconfig.cpp

@@ -399,7 +399,7 @@ void QgsEditFormConfig::readXml( const QDomNode &node, QgsReadWriteContext &cont
       {
         QDomElement elem = attributeEditorFormNodeList.at( i ).toElement();
 
-        QgsAttributeEditorElement *attributeEditorWidget = attributeEditorElementFromDomElement( elem, nullptr );
+        QgsAttributeEditorElement *attributeEditorWidget = attributeEditorElementFromDomElement( elem, nullptr, node.namedItem( QStringLiteral( "id" ) ).toElement().text() );
         addTab( attributeEditorWidget );
       }
 
@@ -518,13 +518,13 @@ void QgsEditFormConfig::writeXml( QDomNode &node, const QgsReadWriteContext &con
   //// END TODO
 }
 
-QgsAttributeEditorElement *QgsEditFormConfig::attributeEditorElementFromDomElement( QDomElement &elem, QgsAttributeEditorElement *parent )
+QgsAttributeEditorElement *QgsEditFormConfig::attributeEditorElementFromDomElement( QDomElement &elem, QgsAttributeEditorElement *parent, const QString &layerId )
 {
   QgsAttributeEditorElement *newElement = nullptr;
 
   if ( elem.tagName() == QLatin1String( "attributeEditorContainer" ) )
   {
-    QgsAttributeEditorContainer *container = new QgsAttributeEditorContainer( QgsProject::instance()->translate( QStringLiteral( "project:layers:%1:formcontainers" ).arg( "testdave" ), elem.attribute( QStringLiteral( "name" ) ) ), parent );
+    QgsAttributeEditorContainer *container = new QgsAttributeEditorContainer( QgsProject::instance()->translate( QStringLiteral( "project:layers:%1:formcontainers" ).arg( layerId ), elem.attribute( QStringLiteral( "name" ) ) ), parent );
     bool ok;
     int cc = elem.attribute( QStringLiteral( "columnCount" ) ).toInt( &ok );
     if ( !ok )
@@ -551,7 +551,7 @@ QgsAttributeEditorElement *QgsEditFormConfig::attributeEditorElementFromDomEleme
     for ( int i = 0; i < childNodeList.size(); i++ )
     {
       QDomElement childElem = childNodeList.at( i ).toElement();
-      QgsAttributeEditorElement *myElem = attributeEditorElementFromDomElement( childElem, container );
+      QgsAttributeEditorElement *myElem = attributeEditorElementFromDomElement( childElem, container, layerId );
       if ( myElem )
         container->addChildElement( myElem );
     }

src/core/qgseditformconfig.h

@@ -288,7 +288,7 @@ class CORE_EXPORT QgsEditFormConfig
     /**
      * Deserialize drag and drop designer elements.
      */
-    QgsAttributeEditorElement *attributeEditorElementFromDomElement( QDomElement &elem, QgsAttributeEditorElement *parent );
+    QgsAttributeEditorElement *attributeEditorElementFromDomElement( QDomElement &elem, QgsAttributeEditorElement *parent, const QString &layerId = nullptr );
 
     /**
      * Create a new edit form config. Normally invoked by QgsVectorLayer

src/core/qgsmaplayer.cpp

@@ -314,7 +314,8 @@ bool QgsMapLayer::readLayerXml( const QDomElement &layerElement,  QgsReadWriteCo
   // set name
   mnl = layerElement.namedItem( QStringLiteral( "layername" ) );
   mne = mnl.toElement();
-  //trans dave
+
+  //name can be translated
   setName( QgsProject::instance()->translate( QStringLiteral( "project:layers:%1" ).arg( layerElement.namedItem( QStringLiteral( "id" ) ).toElement().text() ), mne.text() ) );
 
   //short name

src/core/qgsproject.cpp

@@ -367,6 +367,9 @@ QgsProject::QgsProject( QObject *parent )
   connect( mLayerStore.get(), &QgsMapLayerStore::layersAdded, this, &QgsProject::layersAdded );
   connect( mLayerStore.get(), &QgsMapLayerStore::layerWasAdded, this, &QgsProject::layerWasAdded );
   connect( QgsApplication::instance(), &QgsApplication::requestForTranslatableObjects, this, &QgsProject::registerTranslatableObjects );
+
+  mTranslator = new QTranslator();
+
 }
 
 
@@ -928,6 +931,10 @@ bool QgsProject::read()
   QString filename = mFile.fileName();
   bool rc;
 
+  //dave dirty hack
+  delete mTranslator;
+  mTranslator = new QTranslator();
+
   if ( QgsProjectStorage *storage = projectStorage() )
   {
     QTemporaryFile inDevice;
@@ -961,32 +968,30 @@ bool QgsProject::read()
     rc = readProjectFile( mFile.fileName() );
   }
 
-  mFile.setFileName( filename );
-  return rc;
-}
-
-//dave put to another place
-QString QgsProject::translate( const QString &context, const QString &sourceText, const char *disambiguation, int n )
-{
-  if ( mTranslator.isEmpty() )
+  //on translation we should not change the filename back
+  if ( mTranslator->isEmpty() )
   {
-    return sourceText;
+    mFile.setFileName( filename );
   }
 
-  return mTranslator.translate( context.toUtf8(), sourceText.toUtf8(), disambiguation, n );
+  return rc;
 }
 
-
 bool QgsProject::readProjectFile( const QString &filename )
 {
   QFile projectFile( filename );
   clearError();
 
   QgsSettings settings;
 
-  if ( mTranslator.load( QStringLiteral( "%1_%2" ).arg( QFileInfo( projectFile.fileName() ).baseName(), settings.value( QStringLiteral( "locale/userLocale" ), "" ).toString() ), QFileInfo( projectFile.fileName() ).absolutePath() ) )
+  QString localeFileName = QStringLiteral( "%1_%2" ).arg( QFileInfo( projectFile.fileName() ).baseName(), settings.value( QStringLiteral( "locale/userLocale" ), "" ).toString() );
+
+  if ( QFile( QStringLiteral( "%1/%2.qm" ).arg( QFileInfo( projectFile.fileName() ).absolutePath(), localeFileName ) ).exists() )
   {
-    QgsDebugMsg( "Translation loaded" );
+    if ( mTranslator->load( localeFileName, QFileInfo( projectFile.fileName() ).absolutePath() ) )
+    {
+      QgsDebugMsg( "Translation loaded" );
+    }
   }
 
   std::unique_ptr<QDomDocument> doc( new QDomDocument( QStringLiteral( "qgis" ) ) );
@@ -1285,6 +1290,23 @@ bool QgsProject::readProjectFile( const QString &filename )
 
   emit nonIdentifiableLayersChanged( nonIdentifiableLayers() );
 
+  if ( !mTranslator->isEmpty() )
+  {
+    //project possibly translated -> rename it with locale postfix
+    QString newFileName( QStringLiteral( "%1/%2.qgs" ).arg( QFileInfo( projectFile.fileName() ).absolutePath(), localeFileName ) );
+    QgsProject::instance()->setFileName( newFileName );
+
+    if ( QgsProject::instance()->write() )
+    {
+      QgsProject::instance()->setTitle( localeFileName );
+
+      QgsDebugMsg( "Translated project saved with locale prefix " + newFileName );
+    }
+    else
+    {
+      QgsDebugMsg( "Error saving translated project with locale prefix " + newFileName );
+    }
+  }
   return true;
 }
 
@@ -2765,13 +2787,23 @@ void QgsProject::setRequiredLayers( const QSet<QgsMapLayer *> &layers )
   writeEntry( QStringLiteral( "RequiredLayers" ), QStringLiteral( "Layers" ), layerIds );
 }
 
-void QgsProject::generateTsFile()
+void QgsProject::generateTsFile( const QString &locale )
 {
   QgsTranslationContext translationContext;
   translationContext.setProject( this );
-  translationContext.setFileName( QStringLiteral( "%1/%2.ts" ).arg( absolutePath(), baseName() ) );
+  translationContext.setFileName( QStringLiteral( "%1/%2_%3.ts" ).arg( absolutePath(), baseName(), locale ) );
 
   emit QgsApplication::instance()->collectTranslatableObjects( &translationContext );
 
   translationContext.writeTsFile();
 }
+
+QString QgsProject::translate( const QString &context, const QString &sourceText, const char *disambiguation, int n )
+{
+  if ( mTranslator->isEmpty() )
+  {
+    return sourceText;
+  }
+
+  return mTranslator->translate( context.toUtf8(), sourceText.toUtf8(), disambiguation, n );
+}