CppEditor: Move indenter construction to document constructor

A more direct approach than going through the widget's baseTextDocument,
relying on widget life time.

Change-Id: I62c10e53b1a9a1e6717c6eb3e3cc78dcbfd2868e
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/cppeditor/cppeditor.cpp

@@ -49,7 +49,6 @@
 #include <cpptools/cppcompletionassistprovider.h>
 #include <cpptools/cpphighlightingsupport.h>
 #include <cpptools/cppmodelmanagerinterface.h>
-#include <cpptools/cppqtstyleindenter.h>
 #include <cpptools/cppsemanticinfo.h>
 #include <cpptools/cpptoolseditorsupport.h>
 #include <cpptools/cpptoolsplugin.h>
@@ -179,7 +178,6 @@ CppEditorWidgetPrivate::CppEditorWidgetPrivate(CppEditorWidget *q)
 CppEditorWidget::CppEditorWidget(QWidget *parent)
     : TextEditor::BaseTextEditorWidget(new CPPEditorDocument(), parent)
 {
-    textDocument()->setIndenter(new CppTools::CppQtStyleIndenter);
     ctor();
 }
 

src/plugins/cppeditor/cppeditordocument.cpp

@@ -33,6 +33,7 @@
 #include "cpphighlighter.h"
 
 #include <cpptools/cppcodeformatter.h>
+#include <cpptools/cppqtstyleindenter.h>
 #include <cpptools/cpptoolsconstants.h>
 
 #include <QTextDocument>
@@ -48,6 +49,7 @@ CPPEditorDocument::CPPEditorDocument()
     connect(this, SIGNAL(mimeTypeChanged()),
             this, SLOT(onMimeTypeChanged()));
     setSyntaxHighlighter(new CppHighlighter);
+    setIndenter(new CppTools::CppQtStyleIndenter);
     onMimeTypeChanged();
 }