Force an update of the current editor.

src/plugins/cppeditor/cppeditor.cpp

@@ -578,6 +578,12 @@ void CPPEditor::abortRename()
     setExtraSelections(CodeSemanticsSelection, m_renameSelections);
 }
 
+void CPPEditor::rehighlight(bool force)
+{
+    const SemanticHighlighter::Source source = currentSource(force);
+    m_semanticHighlighter->rehighlight(source);
+}
+
 void CPPEditor::onDocumentUpdated(Document::Ptr doc)
 {
     if (doc->fileName() != file()->fileName())
@@ -588,9 +594,7 @@ void CPPEditor::onDocumentUpdated(Document::Ptr doc)
 
     if (! m_initialized) {
         m_initialized = true;
-
-        const SemanticHighlighter::Source source = currentSource(/*force = */ true);
-        m_semanticHighlighter->rehighlight(source);
+        rehighlight(/* force = */ true);
     }
 
     m_updateOutlineTimer->start();

src/plugins/cppeditor/cppeditor.h

@@ -194,6 +194,7 @@ public Q_SLOTS:
     void findUsages();
     void renameUsagesNow(const QString &replacement = QString());
     void hideRenameNotification();
+    void rehighlight(bool force = false);
 
 protected:
     bool event(QEvent *e);

src/plugins/cppeditor/cppplugin.cpp

@@ -302,6 +302,9 @@ bool CppPlugin::initialize(const QStringList & /*arguments*/, QString *errorMess
             this, SLOT(onTaskStarted(QString)));
     connect(core->progressManager(), SIGNAL(allTasksFinished(QString)),
             this, SLOT(onAllTasksFinished(QString)));
+
+    connect(core->editorManager(), SIGNAL(currentEditorChanged(Core::IEditor*)), SLOT(currentEditorChanged(Core::IEditor*)));
+
     readSettings();
     return true;
 }
@@ -400,4 +403,14 @@ void CppPlugin::onAllTasksFinished(const QString &type)
     }
 }
 
+void CppPlugin::currentEditorChanged(Core::IEditor *editor)
+{
+    if (! editor)
+        return;
+
+    else if (CPPEditor *textEditor = qobject_cast<CPPEditor *>(editor->widget())) {
+        textEditor->rehighlight(/*force = */ true);
+    }
+}
+
 Q_EXPORT_PLUGIN(CppPlugin)

src/plugins/cppeditor/cppplugin.h

@@ -84,6 +84,7 @@ private slots:
     void findUsages();
     void quickFix(TextEditor::ITextEditable *editable);
     void quickFixNow();
+    void currentEditorChanged(Core::IEditor *editor);
 
 private:
     Core::IEditor *createEditor(QWidget *parent);