Start on the German (prototypical) translation.

src/libs/utils/newclasswidget.cpp

@@ -397,20 +397,20 @@ bool NewClassWidget::isValid(QString *error) const
 
     if (!m_d->m_ui.headerFileLineEdit->isValid()) {
         if (error)
-            *error = tr("Invalid header file name: %1").arg(m_d->m_ui.headerFileLineEdit->errorMessage());
+            *error = tr("Invalid header file name: '%1'").arg(m_d->m_ui.headerFileLineEdit->errorMessage());
         return false;
     }
 
     if (!m_d->m_ui.sourceFileLineEdit->isValid()) {
         if (error)
-            *error = tr("Invalid source file name: %1").arg(m_d->m_ui.sourceFileLineEdit->errorMessage());
+            *error = tr("Invalid source file name: '%1'").arg(m_d->m_ui.sourceFileLineEdit->errorMessage());
         return false;
     }
 
     if (isFormInputVisible()) {
         if (!m_d->m_ui.formFileLineEdit->isValid()) {
             if (error)
-                *error = tr("Invalid form file name: %1").arg(m_d->m_ui.formFileLineEdit->errorMessage());
+                *error = tr("Invalid form file name: '%1'").arg(m_d->m_ui.formFileLineEdit->errorMessage());
             return false;
         }
     }

src/plugins/coreplugin/basefilewizard.cpp

@@ -509,7 +509,7 @@ bool BaseFileWizard::postGenerateFiles(const GeneratedFiles &l, QString *errorMe
     Core::EditorManager *em = Core::EditorManager::instance();
     for (Core::GeneratedFiles::const_iterator it = l.constBegin(); it != cend; ++it) {
         if (!em->openEditor(it->path(), it->editorKind())) {
-            *errorMessage = tr("Failed to open an editor for %1").arg(it->path());
+            *errorMessage = tr("Failed to open an editor for '%1'.").arg(it->path());
             return false;
         }
     }

src/plugins/genericprojectmanager/genericproject.cpp

@@ -43,6 +43,7 @@
 #include <QtCore/QDir>
 #include <QtCore/QSettings>
 #include <QtCore/QProcess>
+#include <QtCore/QCoreApplication>
 
 #include <QtGui/QFormLayout>
 #include <QtGui/QMainWindow>
@@ -86,7 +87,7 @@ public:
     {
         if (role == Qt::DisplayRole || role == Qt::EditRole) {
             if (index.row() == stringList().size())
-                return tr("<new>");
+                return QCoreApplication::translate("GenericProject", "<new>");
         }
 
         return QStringListModel::data(index, role);

src/plugins/projectexplorer/dependenciespanel.cpp

@@ -39,6 +39,7 @@
 #include <QtGui/QHeaderView>
 #include <QtGui/QMessageBox>
 #include <QtGui/QPushButton>
+#include <QtCore/QCoreApplication>
 
 namespace ProjectExplorer {
 namespace Internal {
@@ -115,8 +116,8 @@ bool DependenciesModel::setData(const QModelIndex &index, const QVariant &value,
                 emit dataChanged(index, index);
                 return true;
             } else {
-                QMessageBox::warning(0, tr("Unable to add dependency"),
-                                     tr("This would create a circular dependency."));
+                QMessageBox::warning(0, QCoreApplication::translate("DependenciesModel", "Unable to add dependency"),
+                                     QCoreApplication::translate("DependenciesModel", "This would create a circular dependency."));
             }
         } else if (c == Qt::Unchecked) {
             if (m_session->hasDependency(m_project, p)) {

src/shared/qrceditor/test/mainwindow.cpp

@@ -41,16 +41,16 @@ MainWindow::MainWindow() :
     m_qrcEditor(new  SharedTools::QrcEditor())
 {
     m_qrcEditor->setResourceDragEnabled(true);
-    setWindowTitle(tr("Test resource editor"));
-    QMenu* fMenu = menuBar()->addMenu(tr("File"));
+    setWindowTitle(QLatin1String("Test resource editor"));
+    QMenu* fMenu = menuBar()->addMenu(QLatin1String("File"));
 
-    QAction* oa = fMenu->addAction(tr("Open..."));
+    QAction* oa = fMenu->addAction(QLatin1String("Open..."));
     connect(oa, SIGNAL(triggered()), this, SLOT(slotOpen()));
 
-    QAction* sa = fMenu->addAction(tr("Save"));
+    QAction* sa = fMenu->addAction(QLatin1String("Save"));
     connect(sa, SIGNAL(triggered()), this, SLOT(slotSave()));
 
-    QAction* xa = fMenu->addAction(tr("Exit!"));
+    QAction* xa = fMenu->addAction(QLatin1String("Exit!"));
     connect(xa, SIGNAL(triggered()), this, SLOT(close()));
 
 
@@ -63,16 +63,16 @@ MainWindow::MainWindow() :
 
 void MainWindow::slotOpen()
 {
-    const QString fileName = QFileDialog::getOpenFileName(this, tr("Choose resource file"),
+    const QString fileName = QFileDialog::getOpenFileName(this, QLatin1String("Choose resource file"),
                                                           QString(),
-                                                          tr("Resource files (*.qrc)"));
+                                                          QLatin1String("Resource files (*.qrc)"));
     if (fileName.isEmpty())
         return;
 
     if (m_qrcEditor->load(fileName))
-        statusBar()->showMessage(tr("%1 opened").arg(fileName));
+        statusBar()->showMessage(QString::fromLatin1("%1 opened").arg(fileName));
     else
-        statusBar()->showMessage(tr("Unable to open %1!").arg(fileName));
+        statusBar()->showMessage(QString::fromLatin1("Unable to open %1!").arg(fileName));
 }
 
 void MainWindow::slotSave()
@@ -81,18 +81,18 @@ void MainWindow::slotSave()
     QString fileName = oldFileName;
 
     if (fileName.isEmpty()) {
-        fileName = QFileDialog::getSaveFileName(this, tr("Save resource file"),
+        fileName = QFileDialog::getSaveFileName(this, QLatin1String("Save resource file"),
                                                 QString(),
-                                                tr("Resource files (*.qrc)"));
+                                                QLatin1String("Resource files (*.qrc)"));
         if (fileName.isEmpty())
             return;
     }
 
     m_qrcEditor->setFileName(fileName);
     if (m_qrcEditor->save())
-        statusBar()->showMessage(tr("%1 written").arg(fileName));
+        statusBar()->showMessage(QString::fromLatin1("%1 written").arg(fileName));
     else {
-        statusBar()->showMessage(tr("Unable to write %1!").arg(fileName));
+        statusBar()->showMessage(QString::fromLatin1("Unable to write %1!").arg(fileName));
         m_qrcEditor->setFileName(oldFileName);
     }
 }

src/tools/qtcreatorwidgets/customwidgets.cpp

@@ -41,7 +41,7 @@ NewClassCustomWidget::NewClassCustomWidget(QObject *parent) :
         false,
         QLatin1String(groupC),
         QIcon(),
-        tr("Widget to enter classes and source files"))
+        QLatin1String("Widget to enter classes and source files"))
 {
 }
 
@@ -52,7 +52,7 @@ ClassNameValidatingLineEdit_CW::ClassNameValidatingLineEdit_CW(QObject *parent)
         false,
         QLatin1String(groupC),
         QIcon(),
-        tr("Line Edit that validates a class name"))
+        QLatin1String("Line Edit that validates a class name"))
 {
 }
 
@@ -63,7 +63,7 @@ FileNameValidatingLineEdit_CW::FileNameValidatingLineEdit_CW(QObject *parent) :
         false,
         QLatin1String(groupC),
         QIcon(),
-        tr("Line Edit that validates a file name"))
+        QLatin1String("Line Edit that validates a file name"))
 {
 }
 
@@ -74,7 +74,7 @@ ProjectNameValidatingLineEdit_CW::ProjectNameValidatingLineEdit_CW(QObject *pare
         false,
         QLatin1String(groupC),
         QIcon(),
-        tr("Line Edit that validates a project name"))
+        QLatin1String("Line Edit that validates a project name"))
 {
 }
 
@@ -85,7 +85,7 @@ LineColumnLabel_CW::LineColumnLabel_CW(QObject *parent) :
         false,
         QLatin1String(groupC),
         QIcon(),
-        tr("Label suited for displaying line numbers with a fixed with depending on the font size"),
+        QLatin1String("Label suited for displaying line numbers with a fixed with depending on the font size"),
         QSize(100, 20))
 {
 }
@@ -97,7 +97,7 @@ PathChooser_CW::PathChooser_CW(QObject *parent) :
         false,
         QLatin1String(groupC),
         QIcon(),
-        tr("Input widget for paths with a browse button"))
+        QLatin1String("Input widget for paths with a browse button"))
 {
 }
 
@@ -108,7 +108,7 @@ FancyLineEdit_CW::FancyLineEdit_CW(QObject *parent) :
         false,
         QLatin1String(groupC),
         QIcon(),
-        tr("A Line edit with a clickable menu pixmap"))
+        QLatin1String("A Line edit with a clickable menu pixmap"))
 {
 }
 
@@ -119,7 +119,7 @@ QtColorButton_CW::QtColorButton_CW(QObject *parent) :
         false,
         QLatin1String(groupC),
         QIcon(),
-        tr("A color button that spawns a QColorDialog on click"))
+        QLatin1String("A color button that spawns a QColorDialog on click"))
 {
 }
 
@@ -139,7 +139,7 @@ SubmitEditorWidget_CW::SubmitEditorWidget_CW(QObject *parent) :
     false,
     QLatin1String(groupC),
     QIcon(),
-    tr("Submit editor showing message and file list"))
+    QLatin1String("Submit editor showing message and file list"))
 {
 }
 
@@ -150,7 +150,7 @@ SubmitFieldWidget_CW::SubmitFieldWidget_CW(QObject *parent) :
     false,
     QLatin1String(groupC),
     QIcon(),
-    tr("Show predefined fields of a submit message in a control based on mail address controls"))
+    QLatin1String("Show predefined fields of a submit message in a control based on mail address controls"))
 {
 }