/*

* Copyright (c) 2003, 2004 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:  Class for displaying level indicator icons

*

*/

// USER

#include "musuilevelindicator.h"

#include "musuilevelindicatorobserver.h"

#include "muslogger.h"

#include "musresourcefinderutil.h"

#include "musuiactivetimer.h"

#include <musuiicons.mbg>

#include <musui.rsg>

// SYSTEM

#include <aknslider.h>

#include <barsread.h>

#include <AknUtils.h>

#include <AknsUtils.h>

#include <data_caging_path_literals.hrh>

#include <gulicon.h>

#include <aknlayoutscalable_apps.cdl.h>

#include <AknsDrawUtils.h>

// CONSTANTS

const TInt KMusUiLevelDisableTime = 4000000;

const TInt KMusUiSliderEventDelay = 300000;

_LIT( KMyBitmapRomFile, "Z:\\resource\\apps\\musuiicons.mif" );

//_LIT( KMyBitmapRamFile, "C:\\resource\\apps\\musuiicons.mif" );

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

CMusUiLevelIndicator::CMusUiLevelIndicator(

        						TInt aMinLevel, 

        						TInt aMaxLevel, 

        						MMusUiLevelIndicatorObserver* aObserver )

    : iMinLevel( aMinLevel ),

      iMaxLevel( aMaxLevel ),

      iObserver( aObserver )

    {

    MUS_LOG( "mus: mus: [MUSUI ] -> CMusUiLevelIndicator::CMusUiLevelIndicator()" );

    // pass    

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::CMusUiLevelIndicator()" );

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

CMusUiLevelIndicator* CMusUiLevelIndicator::NewL(

                        TAknOrientation aLayout, 

                        TInt aMinLevel,

                        TInt aMaxLevel,

                        CCoeControl* aParent,

                        const TRect& aRect,

                        MMusUiLevelIndicatorObserver* aObserver )

    {

    MUS_LOG( "mus: [MUSUI ] -> CMusUiLevelIndicator::NewL()" );

    CMusUiLevelIndicator* self = NewLC( aLayout,

                                        aMinLevel,

                                        aMaxLevel,

                                        aParent,

                                        aRect,

                                        aObserver );

    CleanupStack::Pop( self );

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::NewL()" );

    return self;

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

CMusUiLevelIndicator* CMusUiLevelIndicator::NewLC(

                        TAknOrientation aLayout, 

                        TInt aMinLevel,

                        TInt aMaxLevel,

                        CCoeControl* aParent,

                        const TRect& aRect,

                        MMusUiLevelIndicatorObserver* aObserver )

    {

    MUS_LOG( "mus: [MUSUI ] -> CMusUiLevelIndicator::NewLC()" );

    CMusUiLevelIndicator* self = new ( ELeave ) CMusUiLevelIndicator(

                            aMinLevel,

                            aMaxLevel,

                            aObserver );

    CleanupStack::PushL( self );

    self->ConstructL( aLayout, aParent, aRect );

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::NewLC()" );

    return self;

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

CMusUiLevelIndicator::~CMusUiLevelIndicator()

    {

    MUS_LOG( "mus: [MUSUI ] -> CMusUiLevelIndicator::~CMusUiLevelIndicator()" );

    delete iSlider;

    delete iSliderEventTimer;

    delete iDisableLevelTimer;

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::~CMusUiLevelIndicator()" );

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

void CMusUiLevelIndicator::ConstructL( TAknOrientation aLayout,

                                       CCoeControl* aParent,

                                       const TRect& aRect )

    {

    MUS_LOG( "mus: [MUSUI ] -> CMusUiLevelIndicator::ConstructL()" );

    SetRect(aRect);

    if( iMinLevel > iMaxLevel )

        {

        User::Leave( KErrArgument );

        }

    iDisableLevelTimer = CMusUiActiveTimer::NewL( this ); 

    iSliderEventTimer = CMusUiActiveTimer::NewL( this );

    iSlider = new CAknSlider();     

    TResourceReader reader;

    if( aLayout == EAknOrientationHorizontal )   

        {

        iEikonEnv->CreateResourceReaderLC( reader, R_MUS_SLIDER_HORIZONTAL );                                        

        MUS_LOG( "mus: [MUSUI ] -> ConstructFromResourceL" );    

        iSlider->ConstructFromResourceL( aParent, 0, reader);            

        CleanupStack::PopAndDestroy(); // reader 

        iSlider->SetRange( iMinLevel, iMaxLevel );          

        iSlider->SetRect( aRect );        

        }

    else

        {

        iEikonEnv->CreateResourceReaderLC( reader, R_MUS_SLIDER_VERTICAL );                    

        iSlider->ConstructFromResourceL( aParent, 0 ,reader);            

        CleanupStack::PopAndDestroy(); // reader          

        TRect rect = TRect( TPoint( (aRect.iBr.iX - iSlider->Size().iWidth),(aRect.iTl.iY) ),TSize( iSlider->Size() ) );             

        iSlider->SetRect(rect);                   

        /* Draw the Min and Max Zoom */

        TParse parse;

        parse.Set( KMyBitmapRomFile, &KDC_APP_RESOURCE_DIR, NULL );

        CFbsBitmap* bitmap = NULL;

        CFbsBitmap* mask = NULL;

        AknsUtils::CreateIconL(AknsUtils::SkinInstance(),

                           KAknsIIDQsnBgScreen,

                           bitmap,

                           mask,

                           parse.FullName(),

                           EMbmMusuiiconsQgn_indi_browser_tb_zoom_in,                           

                           EMbmMusuiiconsQgn_indi_browser_tb_zoom_in_mask);   

        iSlider->SetGraphics(CAknSlider::EElemEmptyLeftCap,bitmap,mask);

        AknsUtils::CreateIconL(AknsUtils::SkinInstance(),

                           KAknsIIDQsnBgScreen,                           

                           bitmap,

                           mask,

                           parse.FullName(),

                           EMbmMusuiiconsQgn_indi_browser_tb_zoom_out,

                           EMbmMusuiiconsQgn_indi_browser_tb_zoom_out_mask);           

        iSlider->SetGraphics(CAknSlider::EElemEmptyRightCap,bitmap,mask); 

        }

    iSlider->HandleResourceChange( 

                            KEikMessageCaptionedControlEditableStateChange );  

    iSlider->SetObserver( this );     

    iSlider->SetPositionIndicators( CAknSlider::EPosMarker );    

    iSlider->SetTicksEnabled( EFalse );    

    iSlider->EnableDrag();       

    iSlider->SetStepSize( 1 );

    MUS_LOG( "mus: [MUSUI ]  <- CMusUiLevelIndicator::ConstructL()" );

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

void CMusUiLevelIndicator::SetLevelL( TMusUiIndicatorType aType, 

                                      TInt aLevel, 

                                      TBool aUseTimer )

    {

    MUS_LOG1( "mus: [MUSUI ] -> CMusUiLevelIndicator::SetLevelL( %d ) ", 

                            aLevel );

    if ( aLevel >= iMinLevel && aLevel <= iMaxLevel )

        {

            switch(aType)

                {

                case EMusUiIndicatorTypeZoom:

                    {

                    iZoomLevel=aLevel;                    

                    break;

                    }

                case EMusUiIndicatorTypeBrightness:

                    {

                    iBrightnessLevel=aLevel;

                    break;

                    }

                case EMusUiIndicatorTypeDuration:

                    {

                    iDurationLevel=aLevel;

                    break;

                    }

                 }

        }

    // Set it to the slider

    if ( !iSliderEventTimer->IsActive() )

        {

        iSlider->SetValueL( aLevel );

        }

    DrawNow();

    if ( aUseTimer )

        {

        iDisableLevelTimer->After( KMusUiLevelDisableTime );

        }

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::SetLevelL()" );

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

TInt CMusUiLevelIndicator::GetLevel( TMusUiIndicatorType aType )

    {

    MUS_LOG( "mus: [MUSUI ] -> CMusUiLevelIndicator::GetLevel()" );

    TInt ret=KErrNotFound;

    switch(aType)

        {

        case EMusUiIndicatorTypeZoom:

            {

            ret=iZoomLevel;

            break;

            }

        case EMusUiIndicatorTypeBrightness:

            {

            ret=iBrightnessLevel;

            break;

            }

        case EMusUiIndicatorTypeDuration:

            {

            ret = iSlider->Value();

            break;

            }

         }

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::GetLevel()" );

    return ret;

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

void CMusUiLevelIndicator::SetRange( TInt aMinLevel, 

                                     TInt aMaxLevel, 

                                     TBool aUseTimer)

    {

    MUS_LOG2( "mus: [MUSUI ] -> CMusUiLevelIndicator::SetRange( %d - %d ) ",

                            aMinLevel, aMaxLevel );

    if( aMinLevel < aMaxLevel )

        {

        iMinLevel = aMinLevel;

        iMaxLevel = aMaxLevel;

        iSlider->SetRange( iMinLevel, iMaxLevel );

        }

    if ( aUseTimer )

       {

       iDisableLevelTimer->After( KMusUiLevelDisableTime );

       }

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::SetRange()" );

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

void CMusUiLevelIndicator::SetIndicatorType( TMusUiIndicatorType aType )

    {

    iIndicatorType = aType;

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

void CMusUiLevelIndicator::SizeChanged()

    {

    MUS_LOG( "mus: [MUSUI ] -> CMusUiLevelIndicator::SizeChanged()" );

    if ( iSlider )

        { 

        iSlider->SetRect( Rect() );

        }

    DrawNow();

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::SizeChanged()" );

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

void CMusUiLevelIndicator::Draw( const TRect& aRect ) const

    {

    CWindowGc& gc = SystemGc();    

    gc.SetBrushColor( iEikonEnv->ControlColor( EColorWindowBackground, *this ) );

    gc.SetBrushStyle( CGraphicsContext::ESolidBrush );

    gc.Clear( aRect );    

    }

// -----------------------------------------------------------------------------

//

// -----------------------------------------------------------------------------

//

TInt CMusUiLevelIndicator::CountComponentControls() const

    {

    return 1;   // return nbr of controls inside this container

    }

// -----------------------------------------------------------------------------

// Called by framework to retrieve the control specified by index.

// -----------------------------------------------------------------------------

//

CCoeControl* CMusUiLevelIndicator::ComponentControl( TInt aIndex ) const

    {

    switch ( aIndex )

        {        

        case 0:

            {

            return iSlider;

            }

        default:

            {

            return NULL;

            }

        }

    }

// -----------------------------------------------------------------------------

// 

// -----------------------------------------------------------------------------

//

void CMusUiLevelIndicator::HandleResourceChange( TInt aType )

    {

    MUS_LOG( "mus: [MUSUI ] -> CMusUiLevelIndicator::HandleResourceChange()" );

    if( aType==KEikDynamicLayoutVariantSwitch )

        {

        if ( iSlider ) // Force a re-layout

            {

            iSlider->SetRect( Rect() );        

            }            

        }

    DrawNow();

    MUS_LOG( "mus: [MUSUI ] <- CMusUiLevelIndicator::HandleResourceChange()" );

    }

// -----------------------------------------------------------------------------

// 

// -----------------------------------------------------------------------------

//

void CMusUiLevelIndicator::HandleControlEventL( CCoeControl* aControl,

                                        TCoeEvent aEventType)

    {

    // No logging due to huge amount of events

    if ( aControl == iSlider &&

         aEventType == MCoeControlObserver::EEventStateChanged )

        {

        // Restart the disable timer if running

        if ( iDisableLevelTimer->IsActive() )

            {

            iDisableLevelTimer->After( KMusUiLevelDisableTime );

            }

        if ( iObserver )

            {

            iSliderEventTimer->After( KMusUiSliderEventDelay );

            }

        }

    // No logging due to huge amount of events

    }

// -----------------------------------------------------------------------------

// 

// -----------------------------------------------------------------------------

//

void CMusUiLevelIndicator::TimerComplete( CMusUiActiveTimer* aTimer )

    {    

    if ( aTimer == iSliderEventTimer )

        {

        MUS_LOG( "mus: [MUSUI ]    Slider event timer complete" );

        if ( iObserver )

            {

            iObserver->IndicatorLevelChanged( iSlider->Value() );

            }

        }

    else if ( aTimer == iDisableLevelTimer )

        {

        MUS_LOG( "mus: [MUSUI ]    Slider visibility timer complete" );

        if ( iObserver )

            {

            iObserver->SetLevelIndicatorVisibility( EFalse );

            }

        }

    else

        {

        // NOP

        }

    }

// End of File