/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** 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.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#ifndef HBWIDGET_H

#define HBWIDGET_H

#include <hbglobal.h>

#include <hbstyle.h>

#include <hbstyleparameters.h>

#include <hbnamespace.h>

#include <hbwidgetbase.h>

#include <hbfeedbacknamespace.h>

class HbEvent;

class HbStyleOption;

class HbWidgetPrivate;

class HbMainWindow;

#ifdef HB_GESTURE_FW

class QGestureEvent;

#endif

class HB_CORE_EXPORT HbWidget: public HbWidgetBase

{

    Q_OBJECT

    Q_ENUMS(FocusDelegation FocusMode)

    Q_PROPERTY(QString toolTipText READ toolTip WRITE setToolTip)

    Q_PROPERTY(HbWidget::FocusDelegation focusDelegation READ focusDelegation WRITE setFocusDelegation)

    Q_PROPERTY(bool focusLooping READ hasFocusLooping WRITE setFocusLooping)

    Q_PROPERTY(HbWidget::FocusMode focusMode READ focusMode WRITE setFocusMode)

public:

    enum FocusDelegation

    {

        FocusDelegationNone,

        FocusDelegationFirstChild,

        FocusDelegationLastChild,

        FocusDelegationBasedOnDirection,

        FocusDelegationFocusedChild

    };

    enum FocusMode

    {

        FocusModeNormal,

        FocusModeEdit

    };

    enum FocusHighlight

    {

        FocusHighlightNone,

        FocusHighlightActive,

        FocusHighlightResidual

    };

    explicit HbWidget(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);

    virtual ~HbWidget();

    virtual bool event(QEvent *e);

    void setStyle(HbStyle *style);

    HbStyle *style() const;

    void clearActions();

    enum { Type = Hb::ItemType_Widget };

    int type() const { return Type; }

    HbMainWindow *mainWindow() const;

    virtual QGraphicsItem *primitive(HbStyle::Primitive primitive) const;

    virtual QGraphicsItem *primitive(const QString &itemName) const;

    virtual QGraphicsLayoutItem *layoutPrimitive(const QString &itemName) const;

    void setFocusOrientation(Qt::Orientations previous, Qt::Orientations next);

    QKeySequence keyForFocusNextChild() const;

    QKeySequence keyForFocusPreviousChild() const;

    void setKeyFocusMode(const QKeySequence &key);

    QKeySequence keyFocusMode() const;

    QGraphicsItem *lastFocusedChild() const;

    void setFocusOrder(QGraphicsItem *first, QGraphicsItem *second);

    void setFocusDelegation(HbWidget::FocusDelegation focusDelegation);

    HbWidget::FocusDelegation focusDelegation() const;

    void setFocusLooping(bool enable);

    bool hasFocusLooping() const;

    void setFocusMode(HbWidget::FocusMode);

    HbWidget::FocusMode focusMode() const;

    void setFocusHighlight(HbStyle::Primitive type, HbWidget::FocusHighlight focusHighlight);

    HbStyle::Primitive focusHighlight(HbWidget::FocusHighlight focusHighlight);

    void setBackgroundItem(QGraphicsItem *item, int zValue = -1);

    QGraphicsItem *backgroundItem() const;

public slots:

    virtual void recreatePrimitives();

    virtual void updatePrimitives();

private slots:

    virtual void hideFocusHighlight();

protected:

    virtual void focusInEvent(QFocusEvent *event);

    virtual void focusOutEvent(QFocusEvent *event);

    virtual void resizeEvent(QGraphicsSceneResizeEvent *event);

    virtual void changeEvent(QEvent *event);

    QVariant itemChange (GraphicsItemChange change, const QVariant &value);

    virtual void polishEvent();

    virtual void polish(HbStyleParameters &params);

    void repolish();

    bool sceneEventFilter (QGraphicsItem *watched, QEvent *event);

protected:

    HbWidget(HbWidgetPrivate &dd, QGraphicsItem *parent, Qt::WindowFlags wFlags=0);

private:

    Q_DECLARE_PRIVATE_D(d_ptr, HbWidget)

    Q_DISABLE_COPY(HbWidget)

    friend class HbGraphicsScenePrivate;

};

#endif // HBWIDGET_H