/*

 * 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 INFOWIDGETLAYOUTMANAGER_H

#define INFOWIDGETLAYOUTMANAGER_H

#include <QObject>

#include <QList>

#include <QSizeF>

#include <QRectF>

#include <QString>

#include <QFont>

#include <QMap>

#include <hbdocumentloader.h>

class QGraphicsLayout; 

class QGraphicsWidget;

class HbLabel;

class HbIconItem;

class HbPushButton;

class HbMarqueeItem;

class HbCheckBox; 

// Class declaration

class InfoWidgetDocumentLoader : public HbDocumentLoader

{

public:

    virtual QObject *createObject(const QString& type,

                                  const QString &name);

};

// Class declaration

class InfoWidgetLayoutManager : public QObject

{

    Q_OBJECT

public: 

    enum LayoutItemRole {

        RoleUndefined = 0,

        // Content widget, the main widget from document 

        RoleContent,

        // Marquee items

        RoleSpnMarqueeItem,

        RoleMcnMarqueeItem,

        RoleSatMarqueeItem,

        // Icons

        RoleSpnIcon, 

        RoleMcnIcon, 

        RoleSatTextIcon, 

        // Check boxes 

        RoleSpnCheckBox,

        RoleMcnCheckBox, 

        RoleSatTextCheckBox,

        // Dialogs

        RoleSettingsDialog,         

        // Actions

        RoleOkAction,

        RoleCancelAction,

        // List widgets 

        RoleSettingsList,

        // Layout containers

        RoleContainer, 

        RoleSettingsContainer, 

        // Must be the last enumeration,

        RoleLastEnum

        }; 

    enum DisplayRole {

        InfoDisplay,

        SettingsDialog

        }; 

    InfoWidgetLayoutManager(QObject *parent = 0);

    ~InfoWidgetLayoutManager();

    DisplayRole currentDisplayRole(); 

    QList<LayoutItemRole> currentWidgetRoles(); 

    QGraphicsWidget* layoutInfoDisplay();

    QGraphicsWidget* layoutSettingsDialog();

    const QList<InfoWidgetLayoutManager::LayoutItemRole> widgetRoles(

            DisplayRole displayRole) const; 

    bool loadWidgets(const DisplayRole displayRole);

    QGraphicsWidget* loadWidget(InfoWidgetDocumentLoader &loader, 

            DisplayRole displayRole, 

            LayoutItemRole widgetRole);

    QGraphicsWidget* getWidget(LayoutItemRole itemRole);

    QObject* loadObject(InfoWidgetDocumentLoader &loader, 

            DisplayRole displayRole, 

            LayoutItemRole objectRole);

    QObject* getObject(LayoutItemRole itemRole);

    QGraphicsWidget* contentWidget();

    QList<HbMarqueeItem *> marqueeItems(); 

    void removeWidget(LayoutItemRole itemRole, 

            bool deleteLater = false);

    void destroyWidgets();

    qreal layoutRowHeight();

    bool textFitsToRect(QString text, QFont font, QRectF rect) const;  

protected: 

    bool loadWidgets(const DisplayRole displayRole, 

            const QList<LayoutItemRole> &displayWidgets,

            QMap<LayoutItemRole, QGraphicsWidget *> &widgetMap);

private:

    QMap<LayoutItemRole, QGraphicsWidget *> m_widgets;

    QMap<LayoutItemRole, QGraphicsWidget *> m_infoDisplayWidgets; 

    QMap<LayoutItemRole, QGraphicsWidget *> m_settingsDialogWidgets;

    QMap<LayoutItemRole, QObject *> m_objects;

    QScopedPointer<InfoWidgetDocumentLoader> m_documentLoader;

    DisplayRole m_displayRole; 

    qreal m_cachedLayoutRowHeight; 

};

#endif // INFOWIDGETLAYOUTMANAGER_H