/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#ifndef HSSCENE_H

#define HSSCENE_H

#include <QObject>

#include <QScopedPointer>

#include <QSizeF>

#include <QPointF>

#include "hsdomainmodel_global.h"

#include "hstest_global.h"

HOMESCREEN_TEST_CLASS(TestHsDomainModel)

HOMESCREEN_TEST_CLASS(HomeScreenStatePluginTest)

class QGestureEvent;

class HbMainWindow;

class HsWallpaper;

class HsPage;

class HsWidgetHost;

class HsSceneData;

class HSDOMAINMODEL_EXPORT HsScene : public QObject

{

    Q_OBJECT

public:

    HsScene(QObject *parent = 0);

    ~HsScene();

    int databaseId() const;

    bool load();

    HsWallpaper *wallpaper() const;

    QList<HsPage *> pages() const;

    bool addPage(HsPage *page);

    bool removePage(HsPage *page);

    bool setActivePage(HsPage *page);

    bool setActivePageIndex(int index);

    HsPage *activePage() const;

    int activePageIndex() const;

    void setActiveWidget(HsWidgetHost *widget);

    HsWidgetHost *activeWidget() const;

    void setOnline(bool online = true);

    bool isOnline() const;

    static HsScene *instance();

    static HsScene *takeInstance();

    static void setInstance(HsScene *instance);

signals:

    void pageTapAndHoldFinished(QGestureEvent *event);

    void pagePanStarted(QGestureEvent *event);

    void pagePanUpdated(QGestureEvent *event);

    void pagePanFinished(QGestureEvent *event);    

    void widgetTapStarted(HsWidgetHost *widget);

    void widgetTapAndHoldFinished(QGestureEvent *event, HsWidgetHost *widget);

    void widgetMoveUpdated(const QPointF &scenePos, HsWidgetHost *widget);

    void widgetMoveFinished(const QPointF &scenePos, HsWidgetHost *widget);

    void activePageChanged();

protected:

    bool eventFilter(QObject *watched, QEvent *event);

private:

    Q_DISABLE_COPY(HsScene)

private:

    int mDatabaseId;

    HsWallpaper *mWallpaper;

    QList<HsPage *> mPages;

    HsPage *mActivePage;

    HsWidgetHost *mActiveWidget;

    bool mIsOnline;

    bool mIsBackground;

    bool mIsSleeping;

    static HsScene *mInstance;

    friend class HsPage;

    friend class HsPageTouchArea;

    friend class HsWidgetTouchArea;

    friend class HsWidgetMoveTouchArea;

    HOMESCREEN_TEST_FRIEND_CLASS(TestHsDomainModel)

    HOMESCREEN_TEST_FRIEND_CLASS(HomeScreenStatePluginTest)

};

#endif // HSSCENE_H