Core: make ICore interface static

This mainly serves two purposes:
(a) it saves a function call in ICore::instance()->foo() vs ICore::foo() at runtime
(b) it saves typing and reduces line noise when reading

It's also (mostly) source compatible, as ICore::instance()->foo() remains compilable.

Change-Id: Icf7be0bce17fefe3560473534a8991ff79cbecc3
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

10 files changed, 274 insertions, 411 deletions

diff --git a/src/plugins/coreplugin/coreimpl.cpp b/src/plugins/coreplugin/coreimpl.cpp
deleted file mode 100644
index 6118050d02..0000000000
--- a/src/plugins/coreplugin/coreimpl.cpp
+++ /dev/null
@@ -1,241 +0,0 @@
-/**************************************************************************
-**
-** This file is part of Qt Creator
-**
-** Copyright (c) 2011 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.
-**
-**************************************************************************/
-
-#include "coreimpl.h"
-#include "mainwindow.h"
-
-#include <QtCore/QDir>
-#include <QtCore/QCoreApplication>
-#include <QtCore/QDebug>
-
-#include <QtGui/QStatusBar>
-
-namespace Core {
-namespace Internal {
-
-// The Core Singleton
-static CoreImpl *m_instance = 0;
-
-} // namespace Internal
-} // namespace Core
-
-
-using namespace Core;
-using namespace Core::Internal;
-
-
-ICore* ICore::instance()
-{
-    return m_instance;
-}
-
-CoreImpl::CoreImpl(MainWindow *mainwindow)
-{
-    m_instance = this;
-    m_mainwindow = mainwindow;
-}
-
-CoreImpl::~CoreImpl()
-{
-    m_instance = 0;
-}
-
-void CoreImpl::showNewItemDialog(const QString &title,
-                                        const QList<IWizard *> &wizards,
-                                        const QString &defaultLocation)
-{
-    m_mainwindow->showNewItemDialog(title, wizards, defaultLocation);
-}
-
-bool CoreImpl::showOptionsDialog(const QString &group, const QString &page, QWidget *parent)
-{
-    return m_mainwindow->showOptionsDialog(group, page, parent);
-}
-
-bool CoreImpl::showWarningWithOptions(const QString &title, const QString &text,
-                                      const QString &details,
-                                      const QString &settingsCategory,
-                                      const QString &settingsId,
-                                      QWidget *parent)
-{
-    return m_mainwindow->showWarningWithOptions(title, text,
-                                                details, settingsCategory,
-                                                settingsId, parent);
-}
-
-ActionManager *CoreImpl::actionManager() const
-{
-    return m_mainwindow->actionManager();
-}
-
-FileManager *CoreImpl::fileManager() const
-{
-    return m_mainwindow->fileManager();
-}
-
-MessageManager *CoreImpl::messageManager() const
-{
-    return m_mainwindow->messageManager();
-}
-
-EditorManager *CoreImpl::editorManager() const
-{
-    return m_mainwindow->editorManager();
-}
-
-ProgressManager *CoreImpl::progressManager() const
-{
-    return m_mainwindow->progressManager();
-}
-
-ScriptManager *CoreImpl::scriptManager() const
-{
-    return m_mainwindow->scriptManager();
-}
-
-VariableManager *CoreImpl::variableManager() const
-{
-    return m_mainwindow->variableManager();
-}
-
-VcsManager *CoreImpl::vcsManager() const
-{
-    return m_mainwindow->vcsManager();
-}
-
-ModeManager *CoreImpl::modeManager() const
-{
-    return m_mainwindow->modeManager();
-}
-
-MimeDatabase *CoreImpl::mimeDatabase() const
-{
-    return m_mainwindow->mimeDatabase();
-}
-
-HelpManager *CoreImpl::helpManager() const
-{
-    return m_mainwindow->helpManager();
-}
-
-QSettings *CoreImpl::settings(QSettings::Scope scope) const
-{
-    return m_mainwindow->settings(scope);
-}
-
-SettingsDatabase *CoreImpl::settingsDatabase() const
-{
-    return m_mainwindow->settingsDatabase();
-}
-
-QPrinter *CoreImpl::printer() const
-{
-    return m_mainwindow->printer();
-}
-
-QString CoreImpl::userInterfaceLanguage() const
-{
-    return qApp->property("qtc_locale").toString();
-}
-
-#ifdef Q_OS_MAC
-#  define SHARE_PATH "/../Resources"
-#else
-#  define SHARE_PATH "/../share/qtcreator"
-#endif
-
-QString CoreImpl::resourcePath() const
-{
-    return QDir::cleanPath(QCoreApplication::applicationDirPath() + QLatin1String(SHARE_PATH));
-}
-
-QString CoreImpl::userResourcePath() const
-{
-    // Create qtcreator dir if it doesn't yet exist
-    const QString configDir = QFileInfo(settings(QSettings::UserScope)->fileName()).path();
-    const QString urp = configDir + QLatin1String("/qtcreator");
-
-    QFileInfo fi(urp + QLatin1Char('/'));
-    if (!fi.exists()) {
-        QDir dir;
-        if (!dir.mkpath(urp))
-            qWarning() << "could not create" << urp;
-    }
-
-    return urp;
-}
-
-IContext *CoreImpl::currentContextObject() const
-{
-    return m_mainwindow->currentContextObject();
-}
-
-
-QMainWindow *CoreImpl::mainWindow() const
-{
-    return m_mainwindow;
-}
-
-QStatusBar *CoreImpl::statusBar() const
-{
-    return m_mainwindow->statusBar();
-}
-
-void CoreImpl::updateAdditionalContexts(const Context &remove, const Context &add)
-{
-    m_mainwindow->updateAdditionalContexts(remove, add);
-}
-
-bool CoreImpl::hasContext(int context) const
-{
-    return m_mainwindow->hasContext(context);
-}
-
-void CoreImpl::addContextObject(IContext *context)
-{
-    m_mainwindow->addContextObject(context);
-}
-
-void CoreImpl::removeContextObject(IContext *context)
-{
-    m_mainwindow->removeContextObject(context);
-}
-
-void CoreImpl::openFiles(const QStringList &arguments, ICore::OpenFilesFlags flags)
-{
-    m_mainwindow->openFiles(arguments, flags);
-}
-
-void CoreImpl::emitNewItemsDialogRequested()
-{
-    emit newItemsDialogRequested();
-}
diff --git a/src/plugins/coreplugin/coreimpl.h b/src/plugins/coreplugin/coreimpl.h
deleted file mode 100644
index 6c995a2a8e..0000000000
--- a/src/plugins/coreplugin/coreimpl.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/**************************************************************************
-**
-** This file is part of Qt Creator
-**
-** Copyright (c) 2011 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 COREIMPL_H
-#define COREIMPL_H
-
-#include "icore.h"
-
-namespace Core {
-namespace Internal {
-class MainWindow;
-
-class CoreImpl : public ICore
-{
-    Q_OBJECT
-
-public:
-    CoreImpl(MainWindow *mainwindow);
-    ~CoreImpl();
-
-    void showNewItemDialog(const QString &title,
-                                  const QList<IWizard *> &wizards,
-                                  const QString &defaultLocation = QString());
-    bool showOptionsDialog(const QString &group = QString(),
-                           const QString &page = QString(),
-                           QWidget *parent = 0);
-    bool showWarningWithOptions(const QString &title, const QString &text,
-                                const QString &details = QString(),
-                                const QString &settingsCategory = QString(),
-                                const QString &settingsId = QString(),
-                                QWidget *parent = 0);
-
-    ActionManager *actionManager() const;
-    FileManager *fileManager() const ;
-    MessageManager *messageManager() const;
-    EditorManager *editorManager() const;
-    ProgressManager *progressManager() const;
-    ScriptManager *scriptManager() const;
-    VariableManager *variableManager() const;
-    VcsManager *vcsManager() const;
-    ModeManager *modeManager() const;
-    MimeDatabase *mimeDatabase() const;
-    HelpManager *helpManager() const;
-
-    QSettings *settings(QSettings::Scope scope = QSettings::UserScope) const;
-    SettingsDatabase *settingsDatabase() const;
-    QPrinter *printer() const;
-    QString userInterfaceLanguage() const;
-
-    QString resourcePath() const;
-    QString userResourcePath() const;
-
-    IContext *currentContextObject() const;
-
-    QMainWindow *mainWindow() const;
-    QStatusBar *statusBar() const;
-
-    // Adds and removes additional active contexts, these contexts are appended
-    // to the currently active contexts.
-    void updateAdditionalContexts(const Context &remove, const Context &add);
-    bool hasContext(int context) const;
-    void addContextObject(IContext *context);
-    void removeContextObject(IContext *context);
-
-    void openFiles(const QStringList &fileNames, ICore::OpenFilesFlags flags);
-
-    void emitNewItemsDialogRequested();
-
-private:
-    MainWindow *m_mainwindow;
-    friend class MainWindow;
-};
-
-} // namespace Internal
-} // namespace Core
-
-#endif // COREIMPL_H
diff --git a/src/plugins/coreplugin/coreplugin.pro b/src/plugins/coreplugin/coreplugin.pro
index d2cc2b02b3..fe78c4b558 100644
--- a/src/plugins/coreplugin/coreplugin.pro
+++ b/src/plugins/coreplugin/coreplugin.pro
@@ -57,7 +57,6 @@ SOURCES += mainwindow.cpp \
     coreplugin.cpp \
     variablemanager.cpp \
     modemanager.cpp \
-    coreimpl.cpp \
     basefilewizard.cpp \
     generatedfile.cpp \
     plugindialog.cpp \
@@ -160,7 +159,6 @@ HEADERS += mainwindow.h \
     coreplugin.h \
     variablemanager.h \
     modemanager.h \
-    coreimpl.h \
     basefilewizard.h \
     generatedfile.h \
     plugindialog.h \
diff --git a/src/plugins/coreplugin/dialogs/iwizard.cpp b/src/plugins/coreplugin/dialogs/iwizard.cpp
index 3dec333a5b..3a766def1f 100644
--- a/src/plugins/coreplugin/dialogs/iwizard.cpp
+++ b/src/plugins/coreplugin/dialogs/iwizard.cpp
@@ -31,7 +31,7 @@
 **************************************************************************/
 
 #include "iwizard.h"
-#include "coreimpl.h"
+#include "icore.h"
 
 #include <extensionsystem/pluginmanager.h>
 
@@ -145,8 +145,7 @@ template <class Predicate>
     QList<IWizard*> findWizards(Predicate predicate)
 {
     // Hack: Trigger delayed creation of wizards
-    if (Core::Internal::CoreImpl *ci = qobject_cast<Core::Internal::CoreImpl*>(ICore::instance()))
-        ci->emitNewItemsDialogRequested();
+    ICore::emitNewItemsDialogRequested();
     // Filter all wizards
     const QList<IWizard*> allWizards = IWizard::allWizards();
     QList<IWizard*> rc;
@@ -160,8 +159,7 @@ template <class Predicate>
 QList<IWizard*> IWizard::allWizards()
 {
     // Hack: Trigger delayed creation of wizards
-    if (Core::Internal::CoreImpl *ci = qobject_cast<Core::Internal::CoreImpl*>(ICore::instance()))
-        ci->emitNewItemsDialogRequested();
+    ICore::emitNewItemsDialogRequested();
     return ExtensionSystem::PluginManager::instance()->getObjects<IWizard>();
 }
 
diff --git a/src/plugins/coreplugin/editormanager/editorview.cpp b/src/plugins/coreplugin/editormanager/editorview.cpp
index 9c1c9c8bde..2abcae13da 100644
--- a/src/plugins/coreplugin/editormanager/editorview.cpp
+++ b/src/plugins/coreplugin/editormanager/editorview.cpp
@@ -32,7 +32,7 @@
 
 #include "editorview.h"
 #include "editormanager.h"
-#include "coreimpl.h"
+#include "icore.h"
 #include "minisplitter.h"
 #include "openeditorsmodel.h"
 
@@ -139,7 +139,7 @@ EditorView::~EditorView()
 
 void EditorView::closeView()
 {
-    EditorManager *em = CoreImpl::instance()->editorManager();
+    EditorManager *em = ICore::instance()->editorManager();
     IEditor *editor = currentEditor();
     if (editor)
        em->closeEditor(editor);
@@ -406,7 +406,7 @@ void EditorView::updateCurrentPositionInNavigationHistory()
 
 void EditorView::goBackInNavigationHistory()
 {
-    EditorManager *em = CoreImpl::instance()->editorManager();
+    EditorManager *em = ICore::instance()->editorManager();
     updateCurrentPositionInNavigationHistory();
     while (m_currentNavigationHistoryPosition > 0) {
         --m_currentNavigationHistoryPosition;
@@ -431,7 +431,7 @@ void EditorView::goBackInNavigationHistory()
 
 void EditorView::goForwardInNavigationHistory()
 {
-    EditorManager *em = CoreImpl::instance()->editorManager();
+    EditorManager *em = ICore::instance()->editorManager();
     updateCurrentPositionInNavigationHistory();
     if (m_currentNavigationHistoryPosition >= m_navigationHistory.size()-1)
         return;
@@ -490,12 +490,12 @@ void SplitterOrView::mousePressEvent(QMouseEvent *e)
     if (e->button() != Qt::LeftButton)
         return;
     setFocus(Qt::MouseFocusReason);
-    CoreImpl::instance()->editorManager()->setCurrentView(this);
+    ICore::instance()->editorManager()->setCurrentView(this);
 }
 
 void SplitterOrView::paintEvent(QPaintEvent *)
 {
-    if (CoreImpl::instance()->editorManager()->currentSplitterOrView() != this)
+    if (ICore::instance()->editorManager()->currentSplitterOrView() != this)
         return;
 
     if (!m_view || hasEditors())
@@ -657,7 +657,7 @@ void SplitterOrView::split(Qt::Orientation orientation)
     m_splitter = new MiniSplitter(this);
     m_splitter->setOrientation(orientation);
     m_layout->addWidget(m_splitter);
-    EditorManager *em = CoreImpl::instance()->editorManager();
+    EditorManager *em = ICore::instance()->editorManager();
     Core::IEditor *e = m_view->currentEditor();
 
     SplitterOrView *view = 0;
@@ -710,7 +710,7 @@ void SplitterOrView::unsplitAll()
 void SplitterOrView::unsplitAll_helper()
 {
     if (!m_isRoot && m_view)
-        CoreImpl::instance()->editorManager()->emptyView(m_view);
+        ICore::instance()->editorManager()->emptyView(m_view);
     if (m_splitter) {
         for (int i = 0; i < m_splitter->count(); ++i) {
             if (SplitterOrView *splitterOrView = qobject_cast<SplitterOrView*>(m_splitter->widget(i))) {
@@ -726,7 +726,7 @@ void SplitterOrView::unsplit()
         return;
 
     Q_ASSERT(m_splitter->count() == 1);
-    EditorManager *em = CoreImpl::instance()->editorManager();
+    EditorManager *em = ICore::instance()->editorManager();
     SplitterOrView *childSplitterOrView = qobject_cast<SplitterOrView*>(m_splitter->widget(0));
     QSplitter *oldSplitter = m_splitter;
     m_splitter = 0;
@@ -771,7 +771,7 @@ QByteArray SplitterOrView::saveState() const
                 << static_cast<SplitterOrView*>(m_splitter->widget(1))->saveState();
     } else {
         IEditor* e = editor();
-        EditorManager *em = CoreImpl::instance()->editorManager();
+        EditorManager *em = ICore::instance()->editorManager();
 
         // don't save state of temporary or ad-hoc editors
         if (e && (e->isTemporary() || e->file()->fileName().isEmpty())) {
@@ -812,7 +812,7 @@ void SplitterOrView::restoreState(const QByteArray &state)
         static_cast<SplitterOrView*>(m_splitter->widget(0))->restoreState(first);
         static_cast<SplitterOrView*>(m_splitter->widget(1))->restoreState(second);
     } else if (mode == "editor" || mode == "currenteditor") {
-        EditorManager *em = CoreImpl::instance()->editorManager();
+        EditorManager *em = ICore::instance()->editorManager();
         QString fileName;
         QString id;
         QByteArray editorState;
diff --git a/src/plugins/coreplugin/icore.cpp b/src/plugins/coreplugin/icore.cpp
index aaed807d58..59dde6cf54 100644
--- a/src/plugins/coreplugin/icore.cpp
+++ b/src/plugins/coreplugin/icore.cpp
@@ -343,3 +343,213 @@
     \brief Sent just after a new \a context became the current context
     (meaning that its widget got focus), or if the additional context ids changed.
 */
+
+#include "icore.h"
+#include "mainwindow.h"
+
+#include <QtCore/QDir>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDebug>
+
+#include <QtGui/QStatusBar>
+
+namespace Core {
+
+// The Core Singleton
+static ICore *m_instance = 0;
+
+namespace Internal {
+static MainWindow *m_mainwindow;
+} // namespace Internal
+
+using namespace Core::Internal;
+
+
+ICore *ICore::instance()
+{
+    return m_instance;
+}
+
+ICore::ICore(MainWindow *mainwindow)
+{
+    m_instance = this;
+    m_mainwindow = mainwindow;
+}
+
+ICore::~ICore()
+{
+    m_instance = 0;
+}
+
+void ICore::showNewItemDialog(const QString &title,
+                              const QList<IWizard *> &wizards,
+                              const QString &defaultLocation)
+{
+    m_mainwindow->showNewItemDialog(title, wizards, defaultLocation);
+}
+
+bool ICore::showOptionsDialog(const QString &group, const QString &page, QWidget *parent)
+{
+    return m_mainwindow->showOptionsDialog(group, page, parent);
+}
+
+bool ICore::showWarningWithOptions(const QString &title, const QString &text,
+                                   const QString &details,
+                                   const QString &settingsCategory,
+                                   const QString &settingsId,
+                                   QWidget *parent)
+{
+    return m_mainwindow->showWarningWithOptions(title, text,
+                                                details, settingsCategory,
+                                                settingsId, parent);
+}
+
+ActionManager *ICore::actionManager()
+{
+    return m_mainwindow->actionManager();
+}
+
+FileManager *ICore::fileManager()
+{
+    return m_mainwindow->fileManager();
+}
+
+MessageManager *ICore::messageManager()
+{
+    return m_mainwindow->messageManager();
+}
+
+EditorManager *ICore::editorManager()
+{
+    return m_mainwindow->editorManager();
+}
+
+ProgressManager *ICore::progressManager()
+{
+    return m_mainwindow->progressManager();
+}
+
+ScriptManager *ICore::scriptManager()
+{
+    return m_mainwindow->scriptManager();
+}
+
+VariableManager *ICore::variableManager()
+{
+    return m_mainwindow->variableManager();
+}
+
+VcsManager *ICore::vcsManager()
+{
+    return m_mainwindow->vcsManager();
+}
+
+ModeManager *ICore::modeManager()
+{
+    return m_mainwindow->modeManager();
+}
+
+MimeDatabase *ICore::mimeDatabase()
+{
+    return m_mainwindow->mimeDatabase();
+}
+
+HelpManager *ICore::helpManager()
+{
+    return m_mainwindow->helpManager();
+}
+
+QSettings *ICore::settings(QSettings::Scope scope)
+{
+    return m_mainwindow->settings(scope);
+}
+
+SettingsDatabase *ICore::settingsDatabase()
+{
+    return m_mainwindow->settingsDatabase();
+}
+
+QPrinter *ICore::printer()
+{
+    return m_mainwindow->printer();
+}
+
+QString ICore::userInterfaceLanguage()
+{
+    return qApp->property("qtc_locale").toString();
+}
+
+#ifdef Q_OS_MAC
+#  define SHARE_PATH "/../Resources"
+#else
+#  define SHARE_PATH "/../share/qtcreator"
+#endif
+
+QString ICore::resourcePath()
+{
+    return QDir::cleanPath(QCoreApplication::applicationDirPath() + QLatin1String(SHARE_PATH));
+}
+
+QString ICore::userResourcePath()
+{
+    // Create qtcreator dir if it doesn't yet exist
+    const QString configDir = QFileInfo(settings(QSettings::UserScope)->fileName()).path();
+    const QString urp = configDir + QLatin1String("/qtcreator");
+
+    QFileInfo fi(urp + QLatin1Char('/'));
+    if (!fi.exists()) {
+        QDir dir;
+        if (!dir.mkpath(urp))
+            qWarning() << "could not create" << urp;
+    }
+
+    return urp;
+}
+
+IContext *ICore::currentContextObject()
+{
+    return m_mainwindow->currentContextObject();
+}
+
+
+QMainWindow *ICore::mainWindow()
+{
+    return m_mainwindow;
+}
+
+QStatusBar *ICore::statusBar()
+{
+    return m_mainwindow->statusBar();
+}
+
+void ICore::updateAdditionalContexts(const Context &remove, const Context &add)
+{
+    m_mainwindow->updateAdditionalContexts(remove, add);
+}
+
+bool ICore::hasContext(int context)
+{
+    return m_mainwindow->hasContext(context);
+}
+
+void ICore::addContextObject(IContext *context)
+{
+    m_mainwindow->addContextObject(context);
+}
+
+void ICore::removeContextObject(IContext *context)
+{
+    m_mainwindow->removeContextObject(context);
+}
+
+void ICore::openFiles(const QStringList &arguments, ICore::OpenFilesFlags flags)
+{
+    m_mainwindow->openFiles(arguments, flags);
+}
+
+void ICore::emitNewItemsDialogRequested()
+{
+    emit m_instance->newItemsDialogRequested();
+}
+
+} // namespace Core
diff --git a/src/plugins/coreplugin/icore.h b/src/plugins/coreplugin/icore.h
index f9e4bb3d20..dadcc0df91 100644
--- a/src/plugins/coreplugin/icore.h
+++ b/src/plugins/coreplugin/icore.h
@@ -63,60 +63,63 @@ class SettingsDatabase;
 class VariableManager;
 class VcsManager;
 
+namespace Internal { class MainWindow; }
+
 class CORE_EXPORT ICore : public QObject
 {
     Q_OBJECT
 
-public:
-    ICore() {}
-    virtual ~ICore() {}
+    friend class Internal::MainWindow;
+    explicit ICore(Internal::MainWindow *mw);
+    ~ICore();
 
+public:
     static ICore *instance();
 
-    virtual void showNewItemDialog(const QString &title,
-                                   const QList<IWizard *> &wizards,
-                                   const QString &defaultLocation = QString()) = 0;
+    static void showNewItemDialog(const QString &title,
+                                  const QList<IWizard *> &wizards,
+                                  const QString &defaultLocation = QString());
 
-    virtual bool showOptionsDialog(const QString &group = QString(),
-                                   const QString &page = QString(),
-                                   QWidget *parent = 0) = 0;
+    static bool showOptionsDialog(const QString &group = QString(),
+                                  const QString &page = QString(),
+                                  QWidget *parent = 0);
 
-    virtual bool showWarningWithOptions(const QString &title, const QString &text,
+    static bool showWarningWithOptions(const QString &title, const QString &text,
                                        const QString &details = QString(),
                                        const QString &settingsCategory = QString(),
                                        const QString &settingsId = QString(),
-                                       QWidget *parent = 0) = 0;
-
-    virtual ActionManager *actionManager() const = 0;
-    virtual FileManager *fileManager() const = 0;
-    virtual MessageManager *messageManager() const = 0;
-    virtual EditorManager *editorManager() const = 0;
-    virtual ProgressManager *progressManager() const = 0;
-    virtual ScriptManager *scriptManager() const = 0;
-    virtual VariableManager *variableManager() const = 0;
-    virtual VcsManager *vcsManager() const = 0;
-    virtual ModeManager *modeManager() const = 0;
-    virtual MimeDatabase *mimeDatabase() const = 0;
-    virtual HelpManager *helpManager() const = 0;
-
-    virtual QSettings *settings(QSettings::Scope scope = QSettings::UserScope) const = 0;
-    virtual SettingsDatabase *settingsDatabase() const = 0;
-    virtual QPrinter *printer() const = 0;
-    virtual QString userInterfaceLanguage() const = 0;
-
-    virtual QString resourcePath() const = 0;
-    virtual QString userResourcePath() const = 0;
-
-    virtual QMainWindow *mainWindow() const = 0;
-    virtual QStatusBar *statusBar() const = 0;
-
-    virtual IContext *currentContextObject() const = 0;
+                                       QWidget *parent = 0);
+
+    static ActionManager *actionManager();
+    static FileManager *fileManager();
+    static MessageManager *messageManager();
+    static EditorManager *editorManager();
+    static ProgressManager *progressManager();
+    static ScriptManager *scriptManager();
+    static VariableManager *variableManager();
+    static VcsManager *vcsManager();
+    static ModeManager *modeManager();
+    static MimeDatabase *mimeDatabase();
+    static HelpManager *helpManager();
+
+    static QSettings *settings(QSettings::Scope scope = QSettings::UserScope);
+    static SettingsDatabase *settingsDatabase();
+    static QPrinter *printer();
+    static QString userInterfaceLanguage();
+
+    static QString resourcePath();
+    static QString userResourcePath();
+
+    static QMainWindow *mainWindow();
+    static QStatusBar *statusBar();
+
+    static IContext *currentContextObject();
     // Adds and removes additional active contexts, these contexts are appended
     // to the currently active contexts.
-    virtual void updateAdditionalContexts(const Context &remove, const Context &add) = 0;
-    virtual bool hasContext(int context) const = 0;
-    virtual void addContextObject(IContext *context) = 0;
-    virtual void removeContextObject(IContext *context) = 0;
+    static void updateAdditionalContexts(const Context &remove, const Context &add);
+    static bool hasContext(int context);
+    static void addContextObject(IContext *context);
+    static void removeContextObject(IContext *context);
 
     enum OpenFilesFlags {
         None = 0,
@@ -125,7 +128,9 @@ public:
          /// Stop loading once the first file fails to load
         StopOnLoadFail = 4
     };
-    virtual void openFiles(const QStringList &fileNames, OpenFilesFlags flags = None) = 0;
+    static void openFiles(const QStringList &fileNames, OpenFilesFlags flags = None);
+
+    static void emitNewItemsDialogRequested();
 
 signals:
     void coreAboutToOpen();
diff --git a/src/plugins/coreplugin/mainwindow.cpp b/src/plugins/coreplugin/mainwindow.cpp
index f1bd87f144..c6271f6a18 100644
--- a/src/plugins/coreplugin/mainwindow.cpp
+++ b/src/plugins/coreplugin/mainwindow.cpp
@@ -34,7 +34,7 @@
 #include "actioncontainer.h"
 #include "command.h"
 #include "actionmanager_p.h"
-#include "coreimpl.h"
+#include "icore.h"
 #include "coreconstants.h"
 #include "editormanager.h"
 #include "externaltool.h"
@@ -127,7 +127,7 @@ enum { debugMainWindow = 0 };
 
 MainWindow::MainWindow() :
     EventFilteringMainWindow(),
-    m_coreImpl(new CoreImpl(this)),
+    m_coreImpl(new ICore(this)),
     m_additionalContexts(Constants::C_GLOBAL),
     m_settings(ExtensionSystem::PluginManager::instance()->settings()),
     m_globalSettings(ExtensionSystem::PluginManager::instance()->globalSettings()),
diff --git a/src/plugins/coreplugin/mainwindow.h b/src/plugins/coreplugin/mainwindow.h
index a5be298ebe..f2a35f5e5f 100644
--- a/src/plugins/coreplugin/mainwindow.h
+++ b/src/plugins/coreplugin/mainwindow.h
@@ -70,7 +70,6 @@ class VcsManager;
 namespace Internal {
 
 class ActionManagerPrivate;
-class CoreImpl;
 class FancyTabWidget;
 class GeneralSettings;
 class ProgressManagerPrivate;
@@ -180,7 +179,7 @@ private:
     void readSettings();
     void writeSettings();
 
-    CoreImpl *m_coreImpl;
+    ICore *m_coreImpl;
     Context m_additionalContexts;
     QSettings *m_settings;
     QSettings *m_globalSettings;
diff --git a/src/plugins/projectexplorer/projectwizardpage.cpp b/src/plugins/projectexplorer/projectwizardpage.cpp
index bac7381fb8..a34bd07ec6 100644
--- a/src/plugins/projectexplorer/projectwizardpage.cpp
+++ b/src/plugins/projectexplorer/projectwizardpage.cpp
@@ -33,7 +33,7 @@
 #include "projectwizardpage.h"
 #include "ui_projectwizardpage.h"
 
-#include <coreplugin/coreimpl.h>
+#include <coreplugin/icore.h>
 #include <vcsbase/vcsbaseconstants.h>
 
 #include <QtCore/QDir>