C++: Moved completion/highlighting into the model manager.

This way the editor does not need to know all the details of
instantiating or maintaining classes for highlighting and/or completion,
it can just ask the model manager. The change also enables different
highlighting- or completion-engines without changes to the cppeditor.

Change-Id: I8000d9d9fe446b292defddb2295493cf77d0f14a
Reviewed-by: Leandro Melo <leandro.melo@nokia.com>

src/plugins/cpptools/cppcompletionsupport.h

@@ -0,0 +1,77 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+**
+** GNU Lesser General Public License Usage
+**
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#ifndef CPPTOOLS_CPPCOMPLETIONSUPPORT_H
+#define CPPTOOLS_CPPCOMPLETIONSUPPORT_H
+
+#include "cpptools_global.h"
+
+#include <texteditor/codeassist/assistenums.h>
+
+QT_BEGIN_NAMESPACE
+class QTextDocument;
+QT_END_NAMESPACE
+
+namespace Core {
+class IFile;
+}
+
+namespace ProjectExplorer {
+class Project;
+}
+
+namespace TextEditor {
+class IAssistInterface;
+}
+
+namespace CppTools {
+namespace Internal {
+class CppEditorSupport;
+}
+
+class CPPTOOLS_EXPORT CppCompletionSupport
+{
+public:
+    CppCompletionSupport(Internal::CppEditorSupport *editorSupport);
+
+    TextEditor::IAssistInterface *createAssistInterface(ProjectExplorer::Project *project,
+                                                        QTextDocument *document,
+                                                        int position,
+                                                        TextEditor::AssistReason reason) const;
+
+private:
+    Internal::CppEditorSupport *m_editorSupport;
+};
+
+} // namespace CppTools
+
+#endif // CPPTOOLS_CPPCOMPLETIONSUPPORT_H