QmlDesigner: Remove unused class

Change-Id: I67bc215fcbaea2b40fa1e54a91d2ec9a3fe65d6d
Reviewed-by: Marco Bubke <marco.bubke@digia.com>

src/plugins/qmldesigner/designercore/include/stylemanager.h

-/****************************************************************************
-**
-** 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 STYLEMANAGER_H
-#define STYLEMANAGER_H
-
-#include "corelib_global.h"
-#include <nodeinstanceview.h>
-#include <QList>
-#include <QStringList>
-
-namespace QmlDesigner {
-
-namespace Internal { class StyleManagerGuard; }
-
-class CORESHARED_EXPORT StyleManager {
-public:
-    static QStringList styles();
-    static void setStyle(const QString &styleName);
-    static QString applicationStyle();
-
-private:
-    StyleManager() {}
-    static StyleManager* instance();
-    static StyleManager* m_instance;
-    QList<NodeInstanceView*> m_views;
-    static void addView(NodeInstanceView* view);
-    static void removeView(NodeInstanceView* view);
-
-    friend class Internal::StyleManagerGuard;
-    friend class NodeInstanceView;
-};
-
-
-} //namespace QmlDesigner
-
-#endif //STYLEMANAGER_H
-
-
-

src/plugins/qmldesigner/designercore/preview/stylemanager.cpp

-/****************************************************************************
-**
-** 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 "stylemanager.h"
-#include <QStyleFactory>
-#include <QApplication>
-#include <QStyle>
-
-namespace QmlDesigner {
-
-namespace Internal {
-
-// TODO KAI: REMOVE THIS CLASS
-
-//### if we use this pattern often: make a template out of this!
-class StyleManagerGuard { //This guard destroys the singleton in its destructor
-public:                   //This should avoid that a memory leak is reported
-   ~StyleManagerGuard() {
-   if (StyleManager::m_instance != 0)
-     delete StyleManager::m_instance;
-   }
-};
-} //namespace Internal
-
-StyleManager* StyleManager::m_instance = 0;
-
-void StyleManager::addView(NodeInstanceView* view)
-{
-    instance()->m_views.append(view);
-}
-
-void StyleManager::removeView(NodeInstanceView* view)
-{
-    instance()->m_views.removeAll(view);
-}
-
-QStringList StyleManager::styles()
-{
-    return QStyleFactory::keys();
-}
-
-void StyleManager::setStyle(const QString &styleName)
-{
-    QStyle *style = QStyleFactory::create(styleName);
-    if (style) {
-        foreach (NodeInstanceView* view, instance()->m_views)
-            view->setStyle(style);
-    }
-}
-
-StyleManager* StyleManager::instance()
-{
-    static Internal::StyleManagerGuard guard; //The destructor destroys the singleton. See above
-    if (m_instance == 0)
-        m_instance = new StyleManager();
-    return m_instance;
-}
-
-QString StyleManager::applicationStyle()
-{
-    QStyle *applicationStyle = qApp->style();
-    QStyle *style;
-    if (applicationStyle)
-    foreach (const QString &name, styles())
-        if ((style = QStyleFactory::create(name)) &&
-            (applicationStyle->metaObject()->className() ==
-                        style->metaObject()->className()))
-          return name;
-    return QString();
-}
-
-
-
-
-
-} //namespace QmlDesigner