/****************************************************************************
**
** 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 HbWidgets 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.
**
****************************************************************************/

#include "hbzoomslider_p.h"
#include <hbzoomsliderpopup.h>
#include <hbinstance.h>
#include "hbsliderpopup_p.h"
#include "hblayoutdirectionnotifier_p.h"
#include <hbmessagebox.h>
#include "hbdeviceprofile.h"

/*!
    @beta
    @hbwidgets
    \class HbZoomSliderPopup
    \brief HbZoomSliderPopup widget provides a vertical zoom slider embedded in a popup.

    HbZoomSliderPopup is provided for convenience. HbZoomSliderPopup sets appropriate
    icons, properties and provides zoom slider specific functionality like a
    zoom level indicator label and appropriate elements out of the box.
    HbZoomSlider sets HbSlider::text  and consists of following
    slider elements by default:
    \li HbSlider::IncreaseElement
    \li HbSlider::TrackElement
    \li HbSlider::DecreaseElement
    \li HbSlider::TextElement

    \image html hbzoomslider.png A vertical zoom slider.

    The elements can be changed by calling HbSlider::setElements() later at any time.

    Orientation of HbZoomSliderPopup can not be changed. If orientation change is need, 
    then first create HbSlider and set needed elements.

    Example usage:
    \code
    HbZoomSliderPopup *slider = new HbZoomSliderPopup();
    connect(slider, SIGNAL(valueChanged(int)), receiver, SLOT(zoomSliderChanged(int)));
    \endcode

    
    Note:: position and size of these elements cant be change.
    use HbZoomSlider instead if you want to change position or size

    Note:: if setElement is called on this slider ,  application is reponsible for
    inconsitent UI.
*/

/*!
    \reimp
    \fn int HbZoomSlider::type() const
 */

/*
    internal
 */
class HbZoomSliderPopupPrivate : public HbSliderPopupPrivate
{
 Q_DECLARE_PUBLIC(HbZoomSliderPopup) 
protected:
    virtual void createSlider();
public:
    HbZoomSliderPopupPrivate();
    virtual ~HbZoomSliderPopupPrivate();
    void init();
  
};

/*
    internal
 */
void HbZoomSliderPopupPrivate::init()
{
    Q_Q(HbZoomSliderPopup);
    q->setTimeout(0);
}



/*
    internal
 */
HbZoomSliderPopupPrivate::HbZoomSliderPopupPrivate() 
{
 
}

/*
    reimp
 */
void HbZoomSliderPopupPrivate::createSlider() 
{
    slider = new HbZoomSlider();
}

/*
   internal
 */
HbZoomSliderPopupPrivate::~HbZoomSliderPopupPrivate()
{
}

  
/*!
    @beta
    Constructs a slider with \a parent.

    The orientation is \b Qt::Vertical and the slider contains only track element by default.

    \sa setOrientation(), setElements()
*/
HbZoomSliderPopup::HbZoomSliderPopup() :
    HbSliderPopup(*new HbZoomSliderPopupPrivate, NULL)
{
    Q_D(HbZoomSliderPopup);
    d->q_ptr = this;
    d->init();
}

/*!
    @beta
    \internal
 */
HbZoomSliderPopup::HbZoomSliderPopup(HbZoomSliderPopupPrivate &dd, QGraphicsItem *parent) :
    HbSliderPopup(dd, parent)
{
    dd.init();    
}

/*!
    Destructs the slider.
*/
HbZoomSliderPopup::~HbZoomSliderPopup()
{
}

/*!
    @beta
    Returns the default Zoom Level of the zoom slider if set by application
    otherwise returns minimum value. 

    \sa setDefaultZoomLevel()

*/
int HbZoomSliderPopup::defaultZoomLevel( ) const
{
    Q_D( const HbZoomSliderPopup);
    if( d->slider ) {
        HbZoomSlider *zoomSlider= static_cast<HbZoomSlider *> (d->slider);
        return(zoomSlider->defaultZoomLevel());
    }
    return 0;
}

/*!
    @beta
    sets the default Zoom Level of the zoom slider with \a value.
    if not set minimum() value will be used for default value.

    \sa defaultZoomLevel()
*/
void HbZoomSliderPopup::setDefaultZoomLevel(int value)
{
    Q_D(HbZoomSliderPopup);
    if( d->slider ) {
        HbZoomSlider *zoomSlider= static_cast<HbZoomSlider *> (d->slider);
        zoomSlider->setDefaultZoomLevel(value);
    }
}



/*!
    Reimplemented from QGraphicsItem::keyReleaseEvent().
 */
void HbZoomSliderPopup::keyReleaseEvent(QKeyEvent *keyevent)
{
   switch (keyevent->key()) {
    case Qt::Key_Enter:
    case Qt::Key_Return:
    case Qt::Key_Select:
         {
         HbMessageBox *note = new HbMessageBox( 
                tr("Zoom Adjusted"), HbMessageBox::MessageTypeInformation);
         note->show();
        }
         hide();
    break;
    case Qt::Key_Left:
    case Qt::Key_Backspace:
    case Qt::Key_Back:
         hide();
         keyevent->accept();
         break;
    default:
        HbSliderPopup::keyReleaseEvent(keyevent);
         break;
    }
}

/*!
    Reimplemented from QGraphicsItem::keyPressEvent().
 */
void HbZoomSliderPopup::keyPressEvent(QKeyEvent *keyevent)
{
   switch (keyevent->key()) {
    case Qt::Key_Left:
    case Qt::Key_Right:
    case Qt::Key_Back:
    case Qt::Key_Backspace:
         hide();
         keyevent->accept();
         break;
    default:
        HbSliderPopup::keyPressEvent(keyevent);
         break;
    }
}


#include "moc_hbzoomsliderpopup.cpp"