/*

* Copyright (c) 2010 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:  Status pane's combined subpane component.

*

*/

#include <AknsDrawUtils.h>

#include <AknIndicatorContainer.h>

#include <aknlayoutscalable_avkon.cdl.h>

#include <barsread.h>

#include <eikspane.h>

#include <avkon.hrh>

#include <AknPriv.hrh>

#include <AknSmallIndicator.h>

#include <aknappui.h>

#include <uikon/eikdefmacros.h>

#include "akncombinedpane.h"

#include "aknstatuspanedatasubscriber.h"

// This is used to calculate the amount of pixels that the subpanes are

// shifted to bottom and right when they are "pressed down". 

const TInt KPressedDownDeltaDivider( 35 ); // 0.3 units

// ======== MEMBER FUNCTIONS ========

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

// Two-phased constructor.

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

//

CAknCombinedPane* CAknCombinedPane::NewL()

    {

    CAknCombinedPane* self = new ( ELeave ) CAknCombinedPane();

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Destructor

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

//

CAknCombinedPane::~CAknCombinedPane()

    {

    iSubPanes.Reset();

    if ( iAvkonAppUi )

        {

        iAvkonAppUi->RemoveFromStack( this );

        }

    }

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

// Returns number of controls inside this control.

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

//

TInt CAknCombinedPane::CountComponentControls() const

    {

    return iSubPanes.Count();

    }

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

// Returns a control determined by control index.

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

//

CCoeControl* CAknCombinedPane::ComponentControl( TInt aIndex ) const

    {

    CCoeControl* control = NULL;

    if ( iStatusPane && aIndex < iSubPanes.Count() )

        {

        TRAP_IGNORE( control = iStatusPane->ContainerControlL(

            TUid::Uid( iSubPanes[aIndex].iUid ) ) );

        }

    return control;

    }

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

// Handles a change to the control's resources.

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

//

void CAknCombinedPane::HandleResourceChange( TInt aType )

    {

    CAknButton::HandleResourceChange( aType );

    switch ( aType )

        {

        case KAknMessageFocusLost:      // fallthrough

        case KEikMessageFadeAllWindows:

            {

            SetSubPanesPressedDown( EFalse );

            DrawDeferred();

            break;

            }

        case KAknsMessageSkinChange:

            {

            DrawDeferred();

            break;

            }

        case KEikDynamicLayoutVariantSwitch:

            {

            SetSubPanesPressedDown( EFalse );

            // Recalculate the pressed down delta pixels on layout change.

            TAknWindowLineLayout unitValue(

                AknLayoutScalable_Avkon::aid_value_unit2().LayoutLine() );

            iPressedDownDelta = unitValue.iW / KPressedDownDeltaDivider;

            DrawDeferred();

            break;

            }

        default:

            {

            break;

            }

        }

    }

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

// Resource constructor.

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

//

void CAknCombinedPane::ConstructFromResourceL( TResourceReader& aReader )

    {

    aReader.ReadInt8(); // version

    TInt count = aReader.ReadInt16(); // amount of subpanes

    for ( TInt i = 0; i < count; ++i )

        {

        TSubPaneData subPane;

        aReader.ReadInt8(); // version

        subPane.iUid = aReader.ReadUint32(); // subpane UID

        subPane.iPressedDown = EFalse; // Isn't specified in the resource.

        aReader.ReadInt32(); // extension

        iSubPanes.AppendL( subPane );

        }

    aReader.ReadInt32(); // extension

    iStatusPane = CEikStatusPaneBase::Current();

    }

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

// Handles pointer events inside the control.

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

//

void CAknCombinedPane::HandlePointerEventL(

    const TPointerEvent& aPointerEvent )

    {

    CAknButton::HandlePointerEventL( aPointerEvent );

    switch ( aPointerEvent.iType )

        {

        case TPointerEvent::EButton1Down:

            {

            SetSubPanesPressedDown( ETrue );

            iPointerDownInCombinedArea = ETrue;

            break;

            }

        case TPointerEvent::EButton1Up:

            {

            SetSubPanesPressedDown( EFalse );

            if ( iPointerDownInCombinedArea &&

                 Rect().Contains( aPointerEvent.iPosition ) )

                {

                // Display the universal indicator popup.

                CAknSmallIndicator* indicatorNotifier =

                    CAknSmallIndicator::NewLC( TUid::Uid( 0 ) );

                indicatorNotifier->HandleIndicatorTapL();

                CleanupStack::PopAndDestroy( indicatorNotifier );

                }

            iPointerDownInCombinedArea = EFalse;

            break;

            }

        case TPointerEvent::EDrag:

            {

            TRect combinedRect( Rect() );

            if ( !combinedRect.Contains( aPointerEvent.iPosition ) )

                {

                SetSubPanesPressedDown( EFalse );

                }

            else if ( iPointerDownInCombinedArea &&

                      combinedRect.Contains( aPointerEvent.iPosition ) )

                {

                SetSubPanesPressedDown( ETrue );

                }

            break;

            }

        default:

            {

            break;

            }

        }

    DrawDeferred();

    }

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

// Default C++ constructor.

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

//

CAknCombinedPane::CAknCombinedPane() : CAknButton( 0 ),

                                       iStatusPane( NULL )

    {

    // Calculate the pressed down delta pixels from layout data,

    // aid_value_unit2 is a 10ux10u rectangle.

    TAknWindowLineLayout unitValue(

        AknLayoutScalable_Avkon::aid_value_unit2().LayoutLine() );

    // Move the control 0.3 units to right and down for the

    // "pressed down" effect.

    iPressedDownDelta = unitValue.iW / KPressedDownDeltaDivider;

    }

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

// Second-phase constructor.

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

//

void CAknCombinedPane::ConstructL()

    {

    CAknButton::ConstructL( NULL, NULL, NULL, NULL, KNullDesC, KNullDesC, 0 );

    // Use the softkey frame graphics so that the bottom area appears

    // consistent.

    SetFrameAndCenterIds( KAknsIIDQgnFrSctrlSkButton,

                          KAknsIIDQgnFrSctrlSkButtonCenter,

                          KAknsIIDNone,

                          KAknsIIDNone,

                          KAknsIIDNone,

                          KAknsIIDNone,

                          KAknsIIDQgnFrSctrlSkButtonPressed,

                          KAknsIIDQgnFrSctrlSkButtonCenterPressed,

                          KAknsIIDNone,

                          KAknsIIDNone );

    // Add to the control stack in order to receive the focus lost events. 

    iAvkonAppUi->AddToStackL( this, 

                              ECoeStackPriorityCba,

                              ECoeStackFlagRefusesAllKeys |

                              ECoeStackFlagRefusesFocus );

    }

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

// Sets the pressed down state of the subpanes.

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

//

void CAknCombinedPane::SetSubPanesPressedDown( TBool aPressedDown )

    {

    TInt delta = aPressedDown ? iPressedDownDelta : -iPressedDownDelta;

    for ( TInt i = 0; i < iSubPanes.Count(); ++i )

        {

        if ( !COMPARE_BOOLS( iSubPanes[i].iPressedDown, aPressedDown ) )

            {

            CCoeControl* control = ComponentControl( i );

            TRect controlRect( control->Rect() );

            controlRect.Move( delta, delta );

            control->SetRect( controlRect );

            iSubPanes[i].iPressedDown = aPressedDown;

            }

        }

    }

// End of File