diff --git a/src/plugins/android/androidmanifesteditorwidget.cpp b/src/plugins/android/androidmanifesteditorwidget.cpp
index 125fa5c50a4..2ded8d8635a 100644
--- a/src/plugins/android/androidmanifesteditorwidget.cpp
+++ b/src/plugins/android/androidmanifesteditorwidget.cpp
@@ -96,14 +96,12 @@ Project *androidProject(const QString &file)
 } // anonymous namespace
 
 AndroidManifestEditorWidget::AndroidManifestEditorWidget(QWidget *parent)
-    : TextEditor::PlainTextEditorWidget(parent),
+    : TextEditor::PlainTextEditorWidget(new AndroidManifestDocument(this), parent),
       m_dirty(false),
       m_stayClean(false),
       m_setAppName(false),
       m_appNameInStringsXml(false)
 {
-    setBaseTextDocument(QSharedPointer<AndroidManifestDocument>(new AndroidManifestDocument(this)));
-
     configure(QLatin1String(Constants::ANDROID_MANIFEST_MIME_TYPE));
 
     initializePage();
@@ -126,7 +124,6 @@ TextEditor::BaseTextEditor *AndroidManifestEditorWidget::createEditor()
     return new AndroidManifestEditor(this);
 }
 
-
 void AndroidManifestEditorWidget::initializePage()
 {
     QWidget *mainWidget = new QWidget(this);
diff --git a/src/plugins/cmakeprojectmanager/cmakeeditor.cpp b/src/plugins/cmakeprojectmanager/cmakeeditor.cpp
index 06e9f3c135c..805b865adb1 100644
--- a/src/plugins/cmakeprojectmanager/cmakeeditor.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakeeditor.cpp
@@ -116,10 +116,8 @@ void CMakeEditor::build()
 //
 
 CMakeEditorWidget::CMakeEditorWidget(QWidget *parent)
-    : BaseTextEditorWidget(parent)
+    : BaseTextEditorWidget(new CMakeDocument(), parent)
 {
-    setBaseTextDocument(QSharedPointer<CMakeDocument>(new CMakeDocument));
-
     baseTextDocument()->setSyntaxHighlighter(new CMakeHighlighter);
 
     m_commentDefinition.clearCommentStyles();
diff --git a/src/plugins/cpptools/cpppointerdeclarationformatter_test.cpp b/src/plugins/cpptools/cpppointerdeclarationformatter_test.cpp
index cb9e11f3ef7..1212ea00605 100644
--- a/src/plugins/cpptools/cpppointerdeclarationformatter_test.cpp
+++ b/src/plugins/cpptools/cpppointerdeclarationformatter_test.cpp
@@ -104,7 +104,7 @@ public:
 
         // Open file
         QScopedPointer<TextEditor::BaseTextEditorWidget> editorWidget(
-            new TextEditor::PlainTextEditorWidget(0));
+            new TextEditor::PlainTextEditorWidget);
         QString error;
         editorWidget->open(&error, document->fileName(), document->fileName());
         QVERIFY(error.isEmpty());
diff --git a/src/plugins/designer/designerxmleditorwidget.cpp b/src/plugins/designer/designerxmleditorwidget.cpp
index b7a5a70baa2..b280a5d0137 100644
--- a/src/plugins/designer/designerxmleditorwidget.cpp
+++ b/src/plugins/designer/designerxmleditorwidget.cpp
@@ -39,13 +39,11 @@ namespace Internal {
 
 DesignerXmlEditorWidget::DesignerXmlEditorWidget(QDesignerFormWindowInterface *form,
                                                  QWidget *parent) :
-    TextEditor::PlainTextEditorWidget(parent),
-    m_file(new FormWindowFile(form, this)),
+    TextEditor::PlainTextEditorWidget(new FormWindowFile(form, this), parent),
     m_designerEditor(new FormWindowEditor(this))
 {
-    setBaseTextDocument(m_file);
     setReadOnly(true);
-    configure(m_file->mimeType());
+    configure(baseTextDocument()->mimeType());
 }
 
 TextEditor::BaseTextEditor *DesignerXmlEditorWidget::createEditor()
@@ -62,7 +60,7 @@ FormWindowEditor *DesignerXmlEditorWidget::designerEditor() const
 
 Internal::FormWindowFile *DesignerXmlEditorWidget::formWindowFile() const
 {
-    return m_file.data();
+    return qobject_cast<FormWindowFile *>(baseTextDocument());
 }
 
 } // namespace Internal
diff --git a/src/plugins/designer/designerxmleditorwidget.h b/src/plugins/designer/designerxmleditorwidget.h
index e0c10552af5..34714610069 100644
--- a/src/plugins/designer/designerxmleditorwidget.h
+++ b/src/plugins/designer/designerxmleditorwidget.h
@@ -67,7 +67,6 @@ protected:
     virtual TextEditor::BaseTextEditor *createEditor();
 
 private:
-    QSharedPointer<Internal::FormWindowFile> m_file;
     FormWindowEditor *m_designerEditor;
 };
 
diff --git a/src/plugins/genericprojectmanager/genericprojectfileseditor.cpp b/src/plugins/genericprojectmanager/genericprojectfileseditor.cpp
index b7b321de36b..6ef0c59eb0d 100644
--- a/src/plugins/genericprojectmanager/genericprojectfileseditor.cpp
+++ b/src/plugins/genericprojectmanager/genericprojectfileseditor.cpp
@@ -109,8 +109,6 @@ Core::IEditor *ProjectFilesEditor::duplicate()
 ProjectFilesEditorWidget::ProjectFilesEditorWidget(QWidget *parent)
     : BaseTextEditorWidget(parent)
 {
-    QSharedPointer<BaseTextDocument> doc(new BaseTextDocument());
-    setBaseTextDocument(doc);
 }
 
 BaseTextEditor *ProjectFilesEditorWidget::createEditor()
diff --git a/src/plugins/qmakeprojectmanager/profileeditor.cpp b/src/plugins/qmakeprojectmanager/profileeditor.cpp
index 81237fd8256..6e9e7556abd 100644
--- a/src/plugins/qmakeprojectmanager/profileeditor.cpp
+++ b/src/plugins/qmakeprojectmanager/profileeditor.cpp
@@ -83,11 +83,8 @@ TextEditor::CompletionAssistProvider *ProFileEditor::completionAssistProvider()
 //
 
 ProFileEditorWidget::ProFileEditorWidget(ProFileEditorFactory *factory, QWidget *parent)
-    : BaseTextEditorWidget(parent), m_factory(factory)
+    : BaseTextEditorWidget(new ProFileDocument(), parent), m_factory(factory)
 {
-    QSharedPointer<ProFileDocument> doc(new ProFileDocument());
-    setBaseTextDocument(doc);
-
     baseTextDocument()->setSyntaxHighlighter(new ProFileHighlighter);
     m_commentDefinition.clearCommentStyles();
     m_commentDefinition.singleLine = QLatin1Char('#');
diff --git a/src/plugins/texteditor/basetexteditor.cpp b/src/plugins/texteditor/basetexteditor.cpp
index a1218fa8c4f..167a436c579 100644
--- a/src/plugins/texteditor/basetexteditor.cpp
+++ b/src/plugins/texteditor/basetexteditor.cpp
@@ -188,9 +188,19 @@ QString BaseTextEditorWidget::convertToPlainText(const QString &txt)
 static const char kTextBlockMimeType[] = "application/vnd.qtcreator.blocktext";
 static const char kVerticalTextBlockMimeType[] = "application/vnd.qtcreator.vblocktext";
 
-
 BaseTextEditorWidget::BaseTextEditorWidget(QWidget *parent)
     : QPlainTextEdit(parent)
+{
+    ctor(QSharedPointer<BaseTextDocument>(new BaseTextDocument));
+}
+
+BaseTextEditorWidget::BaseTextEditorWidget(BaseTextDocument *doc, QWidget *parent)
+    : QPlainTextEdit(parent)
+{
+    ctor(QSharedPointer<BaseTextDocument>(doc));
+}
+
+void BaseTextEditorWidget::ctor(const QSharedPointer<BaseTextDocument> &doc)
 {
     d = new BaseTextEditorWidgetPrivate;
     d->q = this;
@@ -203,6 +213,7 @@ BaseTextEditorWidget::BaseTextEditorWidget(QWidget *parent)
     d->m_searchResultOverlay = new TextEditorOverlay(this);
     d->m_refactorOverlay = new RefactorOverlay(this);
 
+    d->m_document = doc;
     d->setupDocumentSignals(d->m_document);
 
     d->m_lastScrollPos = -1;
@@ -2079,14 +2090,6 @@ void BaseTextEditorWidget::duplicateFrom(BaseTextEditorWidget *widget)
     d->m_document = widget->d->m_document;
 }
 
-void BaseTextEditorWidget::setBaseTextDocument(const QSharedPointer<BaseTextDocument> &doc)
-{
-    if (!doc.isNull()) {
-        d->setupDocumentSignals(doc);
-        d->m_document = doc;
-    }
-}
-
 void BaseTextEditorWidget::documentAboutToBeReloaded()
 {
     //memorize cursor position
@@ -2405,7 +2408,6 @@ BaseTextEditorWidgetPrivate::BaseTextEditorWidgetPrivate()
     q(0),
     m_contentsChanged(false),
     m_lastCursorChangeWasInteresting(false),
-    m_document(new BaseTextDocument),
     m_parenthesesMatchingEnabled(false),
     m_updateTimer(0),
     m_formatRange(false),
diff --git a/src/plugins/texteditor/basetexteditor.h b/src/plugins/texteditor/basetexteditor.h
index d91bc6d9216..0f01d11ea12 100644
--- a/src/plugins/texteditor/basetexteditor.h
+++ b/src/plugins/texteditor/basetexteditor.h
@@ -130,7 +130,8 @@ class TEXTEDITOR_EXPORT BaseTextEditorWidget : public QPlainTextEdit
     Q_PROPERTY(int verticalBlockSelectionLastColumn READ verticalBlockSelectionLastColumn)
 
 public:
-    BaseTextEditorWidget(QWidget *parent);
+    BaseTextEditorWidget(QWidget *parent = 0);
+    BaseTextEditorWidget(BaseTextDocument *doc, QWidget *parent = 0);
     ~BaseTextEditorWidget();
 
     const Utils::ChangeSet &changeSet() const;
@@ -359,8 +360,6 @@ public:
     void duplicateFrom(BaseTextEditorWidget *editor);
 
 protected:
-    void setBaseTextDocument(const QSharedPointer<BaseTextDocument> &doc);
-
     void setDefaultPath(const QString &defaultPath);
 
     virtual BaseTextEditor *createEditor() = 0;
@@ -538,6 +537,7 @@ signals:
     void requestBlockUpdate(const QTextBlock &);
 
 private:
+    void ctor(const QSharedPointer<BaseTextDocument> &doc);
     void indentOrUnindent(bool doIndent);
     void handleHomeKey(bool anchor);
     void handleBackspaceKey();
diff --git a/src/plugins/texteditor/plaintexteditor.cpp b/src/plugins/texteditor/plaintexteditor.cpp
index 4893aa22093..5d618d2c4db 100644
--- a/src/plugins/texteditor/plaintexteditor.cpp
+++ b/src/plugins/texteditor/plaintexteditor.cpp
@@ -58,9 +58,20 @@ PlainTextEditor::PlainTextEditor(PlainTextEditorWidget *editor)
 }
 
 PlainTextEditorWidget::PlainTextEditorWidget(QWidget *parent)
-  : BaseTextEditorWidget(parent),
-  m_isMissingSyntaxDefinition(false)
+  : BaseTextEditorWidget(parent)
 {
+    ctor();
+}
+
+PlainTextEditorWidget::PlainTextEditorWidget(BaseTextDocument *doc, QWidget *parent)
+    : BaseTextEditorWidget(doc, parent)
+{
+    ctor();
+}
+
+void PlainTextEditorWidget::ctor()
+{
+    m_isMissingSyntaxDefinition = false;
     setRevisionsVisible(true);
     setMarksVisible(true);
     setLineSeparatorsAllowed(true);
diff --git a/src/plugins/texteditor/plaintexteditor.h b/src/plugins/texteditor/plaintexteditor.h
index 76909fc78ca..88118054e00 100644
--- a/src/plugins/texteditor/plaintexteditor.h
+++ b/src/plugins/texteditor/plaintexteditor.h
@@ -60,6 +60,7 @@ class TEXTEDITOR_EXPORT PlainTextEditorWidget : public BaseTextEditorWidget
 
 public:
     PlainTextEditorWidget(QWidget *parent = 0);
+    PlainTextEditorWidget(BaseTextDocument *doc, QWidget *parent = 0);
 
     void configure(const QString& mimeType);
     void configure(const Core::MimeType &mimeType);
@@ -80,6 +81,8 @@ protected:
     virtual BaseTextEditor *createEditor() { return new PlainTextEditor(this); }
 
 private:
+    void ctor();
+
     bool m_isMissingSyntaxDefinition;
     Utils::CommentDefinition m_commentDefinition;
 };