diff --git a/src/plugins/clangcodemodel/clangcompletion.cpp b/src/plugins/clangcodemodel/clangcompletion.cpp
index a15b905e6c1..b4456c61b36 100644
--- a/src/plugins/clangcodemodel/clangcompletion.cpp
+++ b/src/plugins/clangcodemodel/clangcompletion.cpp
@@ -44,6 +44,7 @@
 
 #include <cpptools/cppdoxygen.h>
 #include <cpptools/cppmodelmanagerinterface.h>
+#include <cpptools/cppworkingcopy.h>
 
 #include <texteditor/basetexteditor.h>
 #include <texteditor/convenience.h>
diff --git a/src/plugins/clangcodemodel/clangutils.cpp b/src/plugins/clangcodemodel/clangutils.cpp
index 9dbb1eea65c..5f2a27ca68f 100644
--- a/src/plugins/clangcodemodel/clangutils.cpp
+++ b/src/plugins/clangcodemodel/clangutils.cpp
@@ -35,6 +35,8 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/idocument.h>
 
+#include <cpptools/cppworkingcopy.h>
+
 #include <QDir>
 #include <QFile>
 #include <QSet>
@@ -64,7 +66,7 @@ bool isBlacklisted(const QString &path)
 }
 } // anonymous namespace
 
-UnsavedFiles createUnsavedFiles(CppModelManagerInterface::WorkingCopy workingCopy)
+UnsavedFiles createUnsavedFiles(WorkingCopy workingCopy)
 {
     // TODO: change the modelmanager to hold one working copy, and amend it every time we ask for one.
     // TODO: Reason: the UnsavedFile needs a QByteArray.
diff --git a/src/plugins/clangcodemodel/clangutils.h b/src/plugins/clangcodemodel/clangutils.h
index bedafe2e0c8..9fa74b54afa 100644
--- a/src/plugins/clangcodemodel/clangutils.h
+++ b/src/plugins/clangcodemodel/clangutils.h
@@ -37,7 +37,7 @@
 namespace ClangCodeModel {
 namespace Utils {
 
-ClangCodeModel::Internal::UnsavedFiles createUnsavedFiles(CppTools::CppModelManagerInterface::WorkingCopy workingCopy);
+ClangCodeModel::Internal::UnsavedFiles createUnsavedFiles(CppTools::WorkingCopy workingCopy);
 
 QStringList createClangOptions(const CppTools::ProjectPart::Ptr &pPart, CppTools::ProjectFile::Kind fileKind);
 QStringList createClangOptions(const CppTools::ProjectPart::Ptr &pPart, const QString &fileName = QString());
diff --git a/src/plugins/clangcodemodel/cppcreatemarkers.cpp b/src/plugins/clangcodemodel/cppcreatemarkers.cpp
index 5171101ceb1..fc9e96ebdf5 100644
--- a/src/plugins/clangcodemodel/cppcreatemarkers.cpp
+++ b/src/plugins/clangcodemodel/cppcreatemarkers.cpp
@@ -30,8 +30,10 @@
 #include "clangutils.h"
 #include "cppcreatemarkers.h"
 
-#include <cplusplus/CppDocument.h>
 #include <cpptools/cppmodelmanagerinterface.h>
+#include <cpptools/cppworkingcopy.h>
+
+#include <cplusplus/CppDocument.h>
 #include <utils/hostosinfo.h>
 #include <utils/runextensions.h>
 
diff --git a/src/plugins/cppeditor/cppcodemodelinspectordialog.cpp b/src/plugins/cppeditor/cppcodemodelinspectordialog.cpp
index 2dbf38b24b3..1a65bec3ecf 100644
--- a/src/plugins/cppeditor/cppcodemodelinspectordialog.cpp
+++ b/src/plugins/cppeditor/cppcodemodelinspectordialog.cpp
@@ -36,6 +36,7 @@
 #include <cpptools/cppcodemodelinspectordumper.h>
 #include <cpptools/cppmodelmanager.h>
 #include <cpptools/cpptoolseditorsupport.h>
+#include <cpptools/cppworkingcopy.h>
 #include <projectexplorer/project.h>
 
 #include <cplusplus/CppDocument.h>
@@ -1050,7 +1051,7 @@ class WorkingCopyModel : public QAbstractListModel
 public:
     WorkingCopyModel(QObject *parent);
 
-    void configure(const CppModelManagerInterface::WorkingCopy &workingCopy);
+    void configure(const WorkingCopy &workingCopy);
     QModelIndex indexForFile(const QString &filePath);
 
     enum Columns { RevisionColumn, FilePathColumn, ColumnCount };
@@ -1078,7 +1079,7 @@ WorkingCopyModel::WorkingCopyModel(QObject *parent) : QAbstractListModel(parent)
 {
 }
 
-void WorkingCopyModel::configure(const CppModelManagerInterface::WorkingCopy &workingCopy)
+void WorkingCopyModel::configure(const WorkingCopy &workingCopy)
 {
     emit layoutAboutToBeChanged();
     m_workingCopyList.clear();
@@ -1431,7 +1432,7 @@ void CppCodeModelInspectorDialog::refresh()
     }
 
     // Working Copy
-    const CppModelManagerInterface::WorkingCopy workingCopy = cmmi->workingCopy();
+    const WorkingCopy workingCopy = cmmi->workingCopy();
     dumper.dumpWorkingCopy(workingCopy);
     m_workingCopyModel->configure(workingCopy);
     m_workingCopyView->resizeColumns(WorkingCopyModel::ColumnCount);
diff --git a/src/plugins/cppeditor/cppeditor.cpp b/src/plugins/cppeditor/cppeditor.cpp
index 7a37d1f746e..b9291961a18 100644
--- a/src/plugins/cppeditor/cppeditor.cpp
+++ b/src/plugins/cppeditor/cppeditor.cpp
@@ -53,6 +53,7 @@
 #include <cpptools/cpptoolseditorsupport.h>
 #include <cpptools/cpptoolsplugin.h>
 #include <cpptools/cpptoolsreuse.h>
+#include <cpptools/cppworkingcopy.h>
 #include <cpptools/symbolfinder.h>
 
 #include <projectexplorer/session.h>
diff --git a/src/plugins/cppeditor/fileandtokenactions_test.cpp b/src/plugins/cppeditor/fileandtokenactions_test.cpp
index cab09696c5e..10ce9f99b3b 100644
--- a/src/plugins/cppeditor/fileandtokenactions_test.cpp
+++ b/src/plugins/cppeditor/fileandtokenactions_test.cpp
@@ -38,14 +38,15 @@
 #include <coreplugin/editormanager/editormanager.h>
 #include <cpptools/cppmodelmanagerinterface.h>
 #include <cpptools/cpptoolsreuse.h>
-#include <extensionsystem/pluginmanager.h>
+#include <cpptools/cppworkingcopy.h>
 #include <projectexplorer/project.h>
 #include <projectexplorer/projectexplorer.h>
 #include <texteditor/basetextdocument.h>
-#include <utils/algorithm.h>
 
+#include <extensionsystem/pluginmanager.h>
 #include <cplusplus/CppDocument.h>
 #include <cplusplus/TranslationUnit.h>
+#include <utils/algorithm.h>
 
 #include <QApplication>
 #include <QDebug>
diff --git a/src/plugins/cpptools/builtinindexingsupport.cpp b/src/plugins/cpptools/builtinindexingsupport.cpp
index 60874352c98..b16e85864e3 100644
--- a/src/plugins/cpptools/builtinindexingsupport.cpp
+++ b/src/plugins/cpptools/builtinindexingsupport.cpp
@@ -38,7 +38,7 @@ public:
     int dumpFileNameWhileParsing;
     int revision;
     ProjectPart::HeaderPaths headerPaths;
-    CppModelManagerInterface::WorkingCopy workingCopy;
+    WorkingCopy workingCopy;
     QStringList sourceFiles;
 };
 
diff --git a/src/plugins/cpptools/builtinindexingsupport.h b/src/plugins/cpptools/builtinindexingsupport.h
index 8a8669d3350..cf1e9beae76 100644
--- a/src/plugins/cpptools/builtinindexingsupport.h
+++ b/src/plugins/cpptools/builtinindexingsupport.h
@@ -39,9 +39,6 @@ namespace CppTools {
 namespace Internal {
 
 class BuiltinIndexingSupport: public CppIndexingSupport {
-public:
-    typedef CppModelManagerInterface::WorkingCopy WorkingCopy;
-
 public:
     BuiltinIndexingSupport();
     ~BuiltinIndexingSupport();
diff --git a/src/plugins/cpptools/cppcodemodelinspectordumper.cpp b/src/plugins/cpptools/cppcodemodelinspectordumper.cpp
index 6d6b7487378..9c27db8fe53 100644
--- a/src/plugins/cpptools/cppcodemodelinspectordumper.cpp
+++ b/src/plugins/cpptools/cppcodemodelinspectordumper.cpp
@@ -29,6 +29,8 @@
 
 #include "cppcodemodelinspectordumper.h"
 
+#include "cppworkingcopy.h"
+
 #include <app/app_version.h>
 #include <coreplugin/icore.h>
 #include <cpptools/cppprojectfile.h>
@@ -578,7 +580,7 @@ void Dumper::dumpSnapshot(const CPlusPlus::Snapshot &snapshot, const QString &ti
     }
 }
 
-void Dumper::dumpWorkingCopy(const CppModelManagerInterface::WorkingCopy &workingCopy)
+void Dumper::dumpWorkingCopy(const WorkingCopy &workingCopy)
 {
     m_out << "Working Copy contains " << workingCopy.size() << " entries{{{1\n";
 
diff --git a/src/plugins/cpptools/cppcodemodelinspectordumper.h b/src/plugins/cpptools/cppcodemodelinspectordumper.h
index b7ada3084d6..313229e4861 100644
--- a/src/plugins/cpptools/cppcodemodelinspectordumper.h
+++ b/src/plugins/cpptools/cppcodemodelinspectordumper.h
@@ -73,7 +73,7 @@ public:
     void dumpSnapshot(const CPlusPlus::Snapshot &snapshot,
                       const QString &title,
                       bool isGlobalSnapshot = false);
-    void dumpWorkingCopy(const CppTools::CppModelManagerInterface::WorkingCopy &workingCopy);
+    void dumpWorkingCopy(const CppTools::WorkingCopy &workingCopy);
     void dumpMergedEntities(const ProjectPart::HeaderPaths &mergedHeaderPaths,
                             const QByteArray &mergedMacros);
 
diff --git a/src/plugins/cpptools/cppcompletionassist.h b/src/plugins/cpptools/cppcompletionassist.h
index 4ecabc98117..a63ca76ad47 100644
--- a/src/plugins/cpptools/cppcompletionassist.h
+++ b/src/plugins/cpptools/cppcompletionassist.h
@@ -32,6 +32,7 @@
 
 #include "cppcompletionassistprovider.h"
 #include "cppmodelmanagerinterface.h"
+#include "cppworkingcopy.h"
 
 #include <cplusplus/Icons.h>
 #include <cplusplus/TypeOfExpression.h>
@@ -177,7 +178,7 @@ public:
                                  bool isObjCEnabled,
                                  int position,
                                  TextEditor::AssistReason reason,
-                                 const CppModelManagerInterface::WorkingCopy &workingCopy)
+                                 const WorkingCopy &workingCopy)
         : TextEditor::DefaultAssistInterface(textDocument, position, editor->document()->filePath(),
                                              reason)
         , m_editor(editor)
@@ -212,7 +213,7 @@ private:
     TextEditor::BaseTextEditor *m_editor;
     mutable bool m_isObjCEnabled;
     mutable bool m_gotCppSpecifics;
-    CppModelManagerInterface::WorkingCopy m_workingCopy;
+    WorkingCopy m_workingCopy;
     mutable CPlusPlus::Snapshot m_snapshot;
     mutable ProjectPart::HeaderPaths m_headerPaths;
 };
diff --git a/src/plugins/cpptools/cppfindreferences.cpp b/src/plugins/cpptools/cppfindreferences.cpp
index 63b3b6a587e..27bd536a400 100644
--- a/src/plugins/cpptools/cppfindreferences.cpp
+++ b/src/plugins/cpptools/cppfindreferences.cpp
@@ -31,6 +31,7 @@
 
 #include "cpptoolsconstants.h"
 #include "cppmodelmanagerinterface.h"
+#include "cppworkingcopy.h"
 
 #include <coreplugin/editormanager/editormanager.h>
 #include <coreplugin/icore.h>
@@ -54,7 +55,7 @@ using namespace CppTools;
 using namespace CPlusPlus;
 
 static QByteArray getSource(const QString &fileName,
-                            const CppModelManagerInterface::WorkingCopy &workingCopy)
+                            const WorkingCopy &workingCopy)
 {
     if (workingCopy.contains(fileName)) {
         return workingCopy.source(fileName);
@@ -167,14 +168,14 @@ namespace {
 
 class ProcessFile: public std::unary_function<QString, QList<Usage> >
 {
-    const CppModelManagerInterface::WorkingCopy workingCopy;
+    const WorkingCopy workingCopy;
     const Snapshot snapshot;
     Document::Ptr symbolDocument;
     Symbol *symbol;
     QFutureInterface<Usage> *future;
 
 public:
-    ProcessFile(const CppModelManagerInterface::WorkingCopy &workingCopy,
+    ProcessFile(const WorkingCopy &workingCopy,
                 const Snapshot snapshot,
                 Document::Ptr symbolDocument,
                 Symbol *symbol,
@@ -268,7 +269,7 @@ QList<int> CppFindReferences::references(Symbol *symbol, const LookupContext &co
 }
 
 static void find_helper(QFutureInterface<Usage> &future,
-                        const CppModelManagerInterface::WorkingCopy workingCopy,
+                        const WorkingCopy workingCopy,
                         const LookupContext context,
                         CppFindReferences *findRefs,
                         Symbol *symbol)
@@ -367,7 +368,7 @@ void CppFindReferences::findAll_helper(Core::SearchResult *search, CPlusPlus::Sy
             this, SLOT(openEditor(Core::SearchResultItem)));
 
     Core::SearchResultWindow::instance()->popup(IOutputPane::ModeSwitch | IOutputPane::WithFocus);
-    const CppModelManagerInterface::WorkingCopy workingCopy = m_modelManager->workingCopy();
+    const WorkingCopy workingCopy = m_modelManager->workingCopy();
     QFuture<Usage> result;
     result = QtConcurrent::run(&find_helper, workingCopy, context, this, symbol);
     createWatcher(result, search);
@@ -531,13 +532,13 @@ namespace {
 
 class FindMacroUsesInFile: public std::unary_function<QString, QList<Usage> >
 {
-    const CppModelManagerInterface::WorkingCopy workingCopy;
+    const WorkingCopy workingCopy;
     const Snapshot snapshot;
     const Macro &macro;
     QFutureInterface<Usage> *future;
 
 public:
-    FindMacroUsesInFile(const CppModelManagerInterface::WorkingCopy &workingCopy,
+    FindMacroUsesInFile(const WorkingCopy &workingCopy,
                         const Snapshot snapshot,
                         const Macro &macro,
                         QFutureInterface<Usage> *future)
@@ -611,7 +612,7 @@ restart_search:
 } // end of anonymous namespace
 
 static void findMacroUses_helper(QFutureInterface<Usage> &future,
-                                 const CppModelManagerInterface::WorkingCopy workingCopy,
+                                 const WorkingCopy workingCopy,
                                  const Snapshot snapshot,
                                  CppFindReferences *findRefs,
                                  const Macro macro)
@@ -663,7 +664,7 @@ void CppFindReferences::findMacroUses(const Macro &macro, const QString &replace
     connect(search, SIGNAL(paused(bool)), this, SLOT(setPaused(bool)));
 
     const Snapshot snapshot = m_modelManager->snapshot();
-    const CppModelManagerInterface::WorkingCopy workingCopy = m_modelManager->workingCopy();
+    const WorkingCopy workingCopy = m_modelManager->workingCopy();
 
     // add the macro definition itself
     {
diff --git a/src/plugins/cpptools/cppmodelmanager.cpp b/src/plugins/cpptools/cppmodelmanager.cpp
index 39fd4d81f08..81824c56bdd 100644
--- a/src/plugins/cpptools/cppmodelmanager.cpp
+++ b/src/plugins/cpptools/cppmodelmanager.cpp
@@ -479,7 +479,7 @@ void CppModelManager::replaceSnapshot(const CPlusPlus::Snapshot &newSnapshot)
     m_snapshot = newSnapshot;
 }
 
-CppModelManager::WorkingCopy CppModelManager::buildWorkingCopyList()
+WorkingCopy CppModelManager::buildWorkingCopyList()
 {
     WorkingCopy workingCopy;
 
@@ -502,7 +502,7 @@ CppModelManager::WorkingCopy CppModelManager::buildWorkingCopyList()
     return workingCopy;
 }
 
-CppModelManager::WorkingCopy CppModelManager::workingCopy() const
+WorkingCopy CppModelManager::workingCopy() const
 {
     return const_cast<CppModelManager *>(this)->buildWorkingCopyList();
 }
diff --git a/src/plugins/cpptools/cppmodelmanager_test.cpp b/src/plugins/cpptools/cppmodelmanager_test.cpp
index 0366a57b39d..2af2cc2c233 100644
--- a/src/plugins/cpptools/cppmodelmanager_test.cpp
+++ b/src/plugins/cpptools/cppmodelmanager_test.cpp
@@ -672,7 +672,7 @@ void CppToolsPlugin::test_modelmanager_extraeditorsupport_uiFiles()
     // Check working copy.
     // An AbstractEditorSupport object should have been added for the ui_* file.
     CppModelManagerInterface *mm = CppModelManagerInterface::instance();
-    CppModelManagerInterface::WorkingCopy workingCopy = mm->workingCopy();
+    WorkingCopy workingCopy = mm->workingCopy();
 
     QCOMPARE(workingCopy.size(), 2); // mm->configurationFileName() and "ui_*.h"
 
diff --git a/src/plugins/cpptools/cppmodelmanagerinterface.h b/src/plugins/cpptools/cppmodelmanagerinterface.h
index bd40a9de01d..27eaa6b2276 100644
--- a/src/plugins/cpptools/cppmodelmanagerinterface.h
+++ b/src/plugins/cpptools/cppmodelmanagerinterface.h
@@ -58,6 +58,7 @@ class CppCompletionAssistProvider;
 class CppEditorSupport;
 class CppHighlightingSupport;
 class CppIndexingSupport;
+class WorkingCopy;
 
 class CPPTOOLS_EXPORT ProjectPart
 {
@@ -200,41 +201,6 @@ public:
         QByteArray m_defines;
     };
 
-    /// The working-copy stores all files that are stored on disk in their current state.
-    ///
-    /// So, currently the working copy holds:
-    ///  - unsaved content of editors
-    ///  - uic-ed UI files (through \c AbstractEditorSupport)
-    ///  - the preprocessor configuration
-    ///
-    /// Contents are keyed on filename, and hold the revision in the editor and the editor's
-    /// contents encoded as UTF-8.
-    class CPPTOOLS_EXPORT WorkingCopy
-    {
-    public:
-        void insert(const QString &fileName, const QByteArray &source, unsigned revision = 0)
-        { _elements.insert(fileName, qMakePair(source, revision)); }
-
-        bool contains(const QString &fileName) const
-        { return _elements.contains(fileName); }
-
-        QByteArray source(const QString &fileName) const
-        { return _elements.value(fileName).first; }
-
-        QPair<QByteArray, unsigned> get(const QString &fileName) const
-        { return _elements.value(fileName); }
-
-        QHashIterator<QString, QPair<QByteArray, unsigned> > iterator() const
-        { return QHashIterator<QString, QPair<QByteArray, unsigned> >(_elements); }
-
-        int size() const
-        { return _elements.size(); }
-
-    private:
-        typedef QHash<QString, QPair<QByteArray, unsigned> > Table;
-        Table _elements;
-    };
-
 public:
     static const QString configurationFileName();
     static const QString editorConfigurationFileName();
diff --git a/src/plugins/cpptools/cpprefactoringchanges.cpp b/src/plugins/cpptools/cpprefactoringchanges.cpp
index a07d7a404c8..2532f740b02 100644
--- a/src/plugins/cpptools/cpprefactoringchanges.cpp
+++ b/src/plugins/cpptools/cpprefactoringchanges.cpp
@@ -32,6 +32,8 @@
 #include "cppqtstyleindenter.h"
 #include "cppcodeformatter.h"
 #include "cppmodelmanager.h"
+#include "cppworkingcopy.h"
+
 #include <projectexplorer/editorconfiguration.h>
 
 #include <utils/qtcassert.h>
@@ -77,7 +79,7 @@ public:
 
     Snapshot m_snapshot;
     CppModelManagerInterface *m_modelManager;
-    CppModelManagerInterface::WorkingCopy m_workingCopy;
+    WorkingCopy m_workingCopy;
 
 };
 
diff --git a/src/plugins/cpptools/cppsnapshotupdater.cpp b/src/plugins/cpptools/cppsnapshotupdater.cpp
index a534da4d575..c6ef0cde258 100644
--- a/src/plugins/cpptools/cppsnapshotupdater.cpp
+++ b/src/plugins/cpptools/cppsnapshotupdater.cpp
@@ -46,7 +46,7 @@ SnapshotUpdater::SnapshotUpdater(const QString &fileInEditor)
 {
 }
 
-void SnapshotUpdater::update(CppModelManager::WorkingCopy workingCopy)
+void SnapshotUpdater::update(WorkingCopy workingCopy)
 {
     QMutexLocker locker(&m_mutex);
 
diff --git a/src/plugins/cpptools/cppsnapshotupdater.h b/src/plugins/cpptools/cppsnapshotupdater.h
index 69e054ba75c..b4009de0ab5 100644
--- a/src/plugins/cpptools/cppsnapshotupdater.h
+++ b/src/plugins/cpptools/cppsnapshotupdater.h
@@ -51,7 +51,7 @@ public:
     QString fileInEditor() const
     { return m_fileInEditor; }
 
-    void update(CppModelManagerInterface::WorkingCopy workingCopy);
+    void update(WorkingCopy workingCopy);
     void releaseSnapshot();
 
     CPlusPlus::Document::Ptr document() const;
diff --git a/src/plugins/cpptools/cppsourceprocessor.cpp b/src/plugins/cpptools/cppsourceprocessor.cpp
index 33b2a0896eb..b20ae68d777 100644
--- a/src/plugins/cpptools/cppsourceprocessor.cpp
+++ b/src/plugins/cpptools/cppsourceprocessor.cpp
@@ -22,7 +22,7 @@
  * correctly.
  *
  * \sa CPlusPlus::Document
- * \sa CppTools::CppModelManagerInterface::WorkingCopy
+ * \sa CppTools::WorkingCopy
  */
 
 using namespace CPlusPlus;
@@ -69,7 +69,7 @@ inline Message messageNoFileContents(Document::Ptr &document, const QString &fil
     return Message(Message::Warning, document->fileName(), line, /*column =*/ 0, text);
 }
 
-inline const Macro revision(const CppModelManagerInterface::WorkingCopy &workingCopy,
+inline const Macro revision(const WorkingCopy &workingCopy,
                             const Macro &macro)
 {
     Macro newMacro(macro);
@@ -96,7 +96,7 @@ CppSourceProcessor::~CppSourceProcessor()
 void CppSourceProcessor::setRevision(unsigned revision)
 { m_revision = revision; }
 
-void CppSourceProcessor::setWorkingCopy(const CppModelManagerInterface::WorkingCopy &workingCopy)
+void CppSourceProcessor::setWorkingCopy(const WorkingCopy &workingCopy)
 { m_workingCopy = workingCopy; }
 
 void CppSourceProcessor::setHeaderPaths(const ProjectPart::HeaderPaths &headerPaths)
diff --git a/src/plugins/cpptools/cppsourceprocessor.h b/src/plugins/cpptools/cppsourceprocessor.h
index e51315c32cc..a6e0bdb3ab3 100644
--- a/src/plugins/cpptools/cppsourceprocessor.h
+++ b/src/plugins/cpptools/cppsourceprocessor.h
@@ -2,6 +2,7 @@
 #define CPPSOURCEPROCESSOR_H
 
 #include "cppmodelmanagerinterface.h"
+#include "cppworkingcopy.h"
 
 #include <cplusplus/PreprocessorEnvironment.h>
 #include <cplusplus/pp-engine.h>
@@ -39,7 +40,7 @@ public:
     { m_dumpFileNameWhileParsing = onoff; }
 
     void setRevision(unsigned revision);
-    void setWorkingCopy(const CppTools::CppModelManagerInterface::WorkingCopy &workingCopy);
+    void setWorkingCopy(const CppTools::WorkingCopy &workingCopy);
     void setHeaderPaths(const ProjectPart::HeaderPaths &headerPaths);
     void setTodo(const QStringList &files);
 
@@ -91,7 +92,7 @@ private:
     CPlusPlus::Environment m_env;
     CPlusPlus::Preprocessor m_preprocess;
     ProjectPart::HeaderPaths m_headerPaths;
-    CppTools::CppModelManagerInterface::WorkingCopy m_workingCopy;
+    CppTools::WorkingCopy m_workingCopy;
     QSet<QString> m_included;
     CPlusPlus::Document::Ptr m_currentDoc;
     QSet<QString> m_todo;
diff --git a/src/plugins/cpptools/cpptools.pro b/src/plugins/cpptools/cpptools.pro
index 451be672256..8c0cecb096a 100644
--- a/src/plugins/cpptools/cpptools.pro
+++ b/src/plugins/cpptools/cpptools.pro
@@ -47,6 +47,7 @@ HEADERS += \
     cpptoolsplugin.h \
     cpptoolsreuse.h \
     cpptoolssettings.h \
+    cppworkingcopy.h \
     doxygengenerator.h \
     functionutils.h \
     includeutils.h \
@@ -101,6 +102,7 @@ SOURCES += \
     cpptoolsplugin.cpp \
     cpptoolsreuse.cpp \
     cpptoolssettings.cpp \
+    cppworkingcopy.cpp \
     doxygengenerator.cpp \
     functionutils.cpp \
     includeutils.cpp \
diff --git a/src/plugins/cpptools/cpptools.qbs b/src/plugins/cpptools/cpptools.qbs
index 92c4b303910..0aed824106d 100644
--- a/src/plugins/cpptools/cpptools.qbs
+++ b/src/plugins/cpptools/cpptools.qbs
@@ -68,6 +68,7 @@ QtcPlugin {
         "cpptoolsplugin.cpp", "cpptoolsplugin.h",
         "cpptoolsreuse.cpp", "cpptoolsreuse.h",
         "cpptoolssettings.cpp", "cpptoolssettings.h",
+        "cppworkingcopy.cpp", "cppworkingcopy.h",
         "doxygengenerator.cpp", "doxygengenerator.h",
         "functionutils.cpp", "functionutils.h",
         "includeutils.cpp", "includeutils.h",
diff --git a/src/plugins/cpptools/cpptoolseditorsupport.cpp b/src/plugins/cpptools/cpptoolseditorsupport.cpp
index f6d0ec1ce33..123f93da1b3 100644
--- a/src/plugins/cpptools/cpptoolseditorsupport.cpp
+++ b/src/plugins/cpptools/cpptoolseditorsupport.cpp
@@ -35,6 +35,7 @@
 #include "cpplocalsymbols.h"
 
 #include <coreplugin/editormanager/editormanager.h>
+#include <cpptools/cppworkingcopy.h>
 
 #include <utils/qtcassert.h>
 #include <utils/runextensions.h>
@@ -282,7 +283,7 @@ void CppEditorSupport::updateDocument()
 }
 
 static void parse(QFutureInterface<void> &future, QSharedPointer<SnapshotUpdater> updater,
-                  CppModelManagerInterface::WorkingCopy workingCopy)
+                  WorkingCopy workingCopy)
 {
     future.setProgressRange(0, 1);
     if (future.isCanceled()) {
diff --git a/src/plugins/cpptools/cppworkingcopy.cpp b/src/plugins/cpptools/cppworkingcopy.cpp
new file mode 100644
index 00000000000..dfc59ffe6b4
--- /dev/null
+++ b/src/plugins/cpptools/cppworkingcopy.cpp
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "cppworkingcopy.h"
+
+/*!
+    \class CppTools::WorkingCopy
+    \brief The working copy holds among others the unsaved content of editors.
+
+    The working copy holds
+     - unsaved content of editors
+     - uic-ed UI files (through \c AbstractEditorSupport)
+     - the preprocessor configuration
+
+    Contents are keyed on filename, and hold the revision in the editor and the editor's
+    contents encoded as UTF-8.
+*/
+
+namespace CppTools {
+
+WorkingCopy::WorkingCopy()
+{
+}
+
+} // namespace CppTools
diff --git a/src/plugins/cpptools/cppworkingcopy.h b/src/plugins/cpptools/cppworkingcopy.h
new file mode 100644
index 00000000000..3775838885d
--- /dev/null
+++ b/src/plugins/cpptools/cppworkingcopy.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#ifndef CPPWORKINGCOPY_H
+#define CPPWORKINGCOPY_H
+
+#include "cpptools_global.h"
+
+#include <QHash>
+#include <QString>
+#include <QPair>
+
+namespace CppTools {
+
+class CPPTOOLS_EXPORT WorkingCopy
+{
+public:
+    WorkingCopy();
+
+    void insert(const QString &fileName, const QByteArray &source, unsigned revision = 0)
+    { _elements.insert(fileName, qMakePair(source, revision)); }
+
+    bool contains(const QString &fileName) const
+    { return _elements.contains(fileName); }
+
+    QByteArray source(const QString &fileName) const
+    { return _elements.value(fileName).first; }
+
+    QPair<QByteArray, unsigned> get(const QString &fileName) const
+    { return _elements.value(fileName); }
+
+    QHashIterator<QString, QPair<QByteArray, unsigned> > iterator() const
+    { return QHashIterator<QString, QPair<QByteArray, unsigned> >(_elements); }
+
+    int size() const
+    { return _elements.size(); }
+
+private:
+    typedef QHash<QString, QPair<QByteArray, unsigned> > Table;
+    Table _elements;
+};
+
+} // namespace CppTools
+
+#endif // CPPWORKINGCOPY_H
diff --git a/src/plugins/cpptools/modelmanagertesthelper.cpp b/src/plugins/cpptools/modelmanagertesthelper.cpp
index efcf81e4b0a..571a72c785b 100644
--- a/src/plugins/cpptools/modelmanagertesthelper.cpp
+++ b/src/plugins/cpptools/modelmanagertesthelper.cpp
@@ -29,6 +29,8 @@
 
 #include "modelmanagertesthelper.h"
 
+#include "cppworkingcopy.h"
+
 #include <QtTest>
 
 #include <cassert>
diff --git a/src/plugins/debugger/cdb/cdbengine.cpp b/src/plugins/debugger/cdb/cdbengine.cpp
index f1bcf882748..8090d9785cb 100644
--- a/src/plugins/debugger/cdb/cdbengine.cpp
+++ b/src/plugins/debugger/cdb/cdbengine.cpp
@@ -68,6 +68,7 @@
 
 #include <cplusplus/findcdbbreakpoint.h>
 #include <cpptools/cppmodelmanagerinterface.h>
+#include <cpptools/cppworkingcopy.h>
 
 #include <QDir>
 #include <QMessageBox>
@@ -2796,18 +2797,18 @@ class BreakpointCorrectionContext
 {
 public:
     explicit BreakpointCorrectionContext(const CPlusPlus::Snapshot &s,
-                                         const CppTools::CppModelManagerInterface::WorkingCopy &workingCopy) :
+                                         const CppTools::WorkingCopy &workingCopy) :
         m_snapshot(s), m_workingCopy(workingCopy) {}
 
     unsigned fixLineNumber(const QString &fileName, unsigned lineNumber) const;
 
 private:
     const CPlusPlus::Snapshot m_snapshot;
-    CppTools::CppModelManagerInterface::WorkingCopy m_workingCopy;
+    CppTools::WorkingCopy m_workingCopy;
 };
 
 static CPlusPlus::Document::Ptr getParsedDocument(const QString &fileName,
-                                                  const CppTools::CppModelManagerInterface::WorkingCopy &workingCopy,
+                                                  const CppTools::WorkingCopy &workingCopy,
                                                   const CPlusPlus::Snapshot &snapshot)
 {
     QByteArray src;
diff --git a/src/plugins/designer/qtcreatorintegration.cpp b/src/plugins/designer/qtcreatorintegration.cpp
index 97c7b904020..c1aabdf7d05 100644
--- a/src/plugins/designer/qtcreatorintegration.cpp
+++ b/src/plugins/designer/qtcreatorintegration.cpp
@@ -36,6 +36,7 @@
 
 #include <cpptools/cppmodelmanagerinterface.h>
 #include <cpptools/cpptoolsconstants.h>
+#include <cpptools/cppworkingcopy.h>
 #include <cpptools/insertionpointlocator.h>
 #include <cpptools/symbolfinder.h>
 #include <cplusplus/Overview.h>
@@ -498,7 +499,7 @@ static inline QString uiClassName(QString formObjectName)
 }
 
 static Document::Ptr getParsedDocument(const QString &fileName,
-                                       CppTools::CppModelManagerInterface::WorkingCopy &workingCopy,
+                                       CppTools::WorkingCopy &workingCopy,
                                        Snapshot &snapshot)
 {
     QByteArray src;
@@ -553,7 +554,7 @@ bool QtCreatorIntegration::navigateToSlot(const QString &objectName,
                 newDocTable.insert(it.value());
         }
     } else {
-        const CppTools::CppModelManagerInterface::WorkingCopy workingCopy =
+        const CppTools::WorkingCopy workingCopy =
                 CppTools::CppModelManagerInterface::instance()->workingCopy();
         QHashIterator<QString, QPair<QByteArray, unsigned> > it = workingCopy.iterator();
         while (it.hasNext()) {
@@ -631,7 +632,7 @@ bool QtCreatorIntegration::navigateToSlot(const QString &objectName,
         }
     } else {
         // add function declaration to cl
-        CppTools::CppModelManagerInterface::WorkingCopy workingCopy =
+        CppTools::WorkingCopy workingCopy =
             CppTools::CppModelManagerInterface::instance()->workingCopy();
         const QString fileName = doc->fileName();
         getParsedDocument(fileName, workingCopy, docTable);