/*

* Copyright (c) 2002-2008 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:  Navigation pane for file manager

*

*/

// INCLUDES

#include <coecntrl.h>

#include <avkon.rsg>

#include <aknconsts.h>

#include <StringLoader.h>

#include <bautils.h>

#include <featmgr.h>

#include <AknsSkinInstance.h>

#include <AknsUtils.h>

#include <aknlayoutscalable_avkon.cdl.h>

#include <filemanagerview.rsg>

#include <FileManagerEngine.hrh>

#include "Cfilemanagerfoldernavigationpane.h"

#include "MFileManagerFolderNaviObserver.h"

#ifdef RD_TACTILE_FEEDBACK

#include <touchfeedback.h>

#endif //RD_TACTILE_FEEDBACK

// CONSTANTS

const TUint KFmgrRoot = 0;

const TUint KFmgrFirstLevel = 1;

// needed because _LIT macro does not expand parameter, which is also macro

#define _CREATE_LIT( a, b ) _LIT( a, b )

_CREATE_LIT( KFileManagerMifFile, filemanager_mbm_file_location );

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

// CFileManagerFolderNavigationPane::TIndicatorSet::Compare

// 

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

// 

TBool CFileManagerFolderNavigationPane::TIndicatorSet::Compare( 

        const TIndicatorSet& aFirst,

        const TIndicatorSet& aSecond )

    { 

    return ( aFirst.iId == aSecond.iId ); 

    }

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

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

// CFileManagerFolderNavigationPane::~CFileManagerFolderNavigationPane

// 

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

// 

EXPORT_C CFileManagerFolderNavigationPane::~CFileManagerFolderNavigationPane()

    {

    delete iLongTapDetector;

    iIndicatorArray.Reset();

    delete iFolderBitmap;

    delete iFolderMask;

    delete iRootBitmap;

    delete iRootMask;

    delete iSeparator;

    delete iBmpFile;

    delete iEndChar;

    }

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

// CFileManagerFolderNavigationPane::CFileManagerFolderNavigationPane

// 

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

// 

CFileManagerFolderNavigationPane::CFileManagerFolderNavigationPane( 

        const TInt aRoot,

        const TInt aDepth ) :

    iRoot( aRoot ),

    iMaxDepth( KFileManagerMaxFolderDepth - 1 ), // Exclude the root

    iIndicatorArray( 1 )

    {

    // ensure that iDepth will be positive

    if ( aDepth < 0 )

        { 

        iDepth = 0;

        }

    else

        {

        iDepth = aDepth;

        }

    }

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

// CFileManagerFolderNavigationPane::ConstructL

// 

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

// 

void CFileManagerFolderNavigationPane::ConstructL( TResourceReader& aReader )

    {

    // Get File Manager mif drive from exe location

    TFileName exeFileName( RProcess().FileName() );

    iBmpFile = aReader.ReadHBufCL();

    TPtr ptr( iBmpFile->Des() );

    if ( !ptr.CompareF( KFileManagerMifFile ) )

        {

        // Set correct File Manager mif drive

        ptr[ 0 ] = exeFileName[ 0 ];

        }

    iFolderIconId = aReader.ReadInt16();

    iFolderMaskId = aReader.ReadInt16();

    const TInt majorSkinId = static_cast< TInt >( aReader.ReadInt32() );

    const TInt minorSkinId = static_cast< TInt >( aReader.ReadInt32() );

    iSeparator = aReader.ReadHBufCL();

    iEndChar = aReader.ReadHBufCL();

    iAknsItemIdFolder.Set( majorSkinId, minorSkinId );

    TInt count( aReader.ReadInt16() );

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

        {

        TIndicatorSet set;

        set.iId = aReader.ReadInt16() ;

        HBufC* tmp = aReader.ReadHBufCL();

        TPtr ptr( tmp->Des() );

        if ( !ptr.CompareF( KFileManagerMifFile ) )

            {

            // Set correct File Manager mif drive

            ptr[ 0 ] = exeFileName[ 0 ];

            }

        set.iBmpFile = *tmp;

        delete tmp;

        set.iIconId = aReader.ReadInt16();

        set.iMaskId = aReader.ReadInt16();

        const TInt majorSkinIdRoot = static_cast< TInt >( aReader.ReadInt32() );

        const TInt minorSkinIdRoot = static_cast< TInt >( aReader.ReadInt32() );

        set.iAknsItemIdRoot.Set( majorSkinIdRoot, minorSkinIdRoot );

        iIndicatorArray.AppendL( set );

        }

    LoadFolderBitmapL();

    // Set the default root bitmap

    ChangeRootL( iRoot );

    iLongTapDetector = CAknLongTapDetector::NewL( this );

    }

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

// CFileManagerFolderNavigationPane::NewL

// 

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

// 

EXPORT_C CFileManagerFolderNavigationPane* 

    CFileManagerFolderNavigationPane::NewL( const TInt aRoot,

                                            const TInt aDepth,

                                            TResourceReader& aReader )

    {

    CFileManagerFolderNavigationPane* self = 

        new( ELeave ) CFileManagerFolderNavigationPane( aRoot, aDepth );

    CleanupStack::PushL( self );

    self->ConstructL( aReader );

    CleanupStack::Pop( self );

    return self;

    }

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

// CFileManagerFolderNavigationPane::SetFolderDepth

// 

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

// 

EXPORT_C void CFileManagerFolderNavigationPane::SetFolderDepth( const TInt aDepth )

    {

    if ( aDepth < 0 )

        {

        iDepth = 0;

        }

    else

        {

        iDepth = aDepth;

        }

    // ReportChange() is used to notify CoeControl to redraw pane.

    ReportChange();

    }

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

// CFileManagerFolderNavigationPane::FolderDepth

// 

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

// 

EXPORT_C TInt CFileManagerFolderNavigationPane::FolderDepth() const

    {

    return iDepth;

    }

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

// CFileManagerFolderNavigationPane::SizeChanged

// 

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

// 

void CFileManagerFolderNavigationPane::SizeChanged()

    {

    TSize size(  TSize::EUninitialized );

    AknLayoutUtils::LayoutMetricsSize( AknLayoutUtils::ENaviPane, size );

    TRect parentRect( size );

    // Get pane icon and text layouts

    TAknWindowLineLayout paneIconLayout(

        AknLayoutScalable_Avkon::navi_icon_text_pane_g1().LayoutLine() );

    TAknTextLineLayout paneTextLayout(

        AknLayoutScalable_Avkon::navi_icon_text_pane_t1().LayoutLine() );

    TAknLayoutRect layoutRect;

    TAknLayoutText layoutText;

    layoutRect.LayoutRect( parentRect, paneIconLayout );

    layoutText.LayoutText( parentRect, paneTextLayout );

    // Setup pane items

    TRect itemsRect( layoutRect.Rect() );

    const CFont* font( layoutText.Font() ); // Not owned

    TInt bsWidth( font->MeasureText( *iSeparator ) );

    TInt dotsWidth( font->MeasureText( *iEndChar ) );

    TInt textWidth( KFileManagerMaxFolderDepth * bsWidth + dotsWidth );

    TInt iconWidth( ( itemsRect.Width() - textWidth )

        / KFileManagerMaxFolderDepth );

    TInt i( 0 );

    if ( AknLayoutUtils::LayoutMirrored() )

        {

        TInt offs( itemsRect.Width() );

        for ( i = 0 ; i < KFileManagerMaxFolderDepth; i++ )

            {

            // Root and Folder Icons

            offs -= iconWidth;

            iBitmapLayout[ i ].LayoutRect(

                parentRect,

                paneIconLayout.iC,

                paneIconLayout.il + offs,

                paneIconLayout.it,

                paneIconLayout.ir,

                paneIconLayout.ib,

                iconWidth,

                paneIconLayout.iH

                );

            // Backslashes

            offs -= bsWidth;

            iTextLayout[ i ].LayoutText(

                parentRect,

                paneTextLayout.iFont,

                paneTextLayout.iC,

                paneTextLayout.il + offs,

                paneTextLayout.ir,

                paneTextLayout.iB,

                paneTextLayout.iW,

                paneTextLayout.iJ

                );

            }

        // Dots

        offs -= dotsWidth;

        iTextLayout[ i ].LayoutText(

            parentRect,

            paneTextLayout.iFont,

            paneTextLayout.iC,

            paneTextLayout.il + offs,

            paneTextLayout.ir,

            paneTextLayout.iB,

            paneTextLayout.iW,

            paneTextLayout.iJ

            );

        }

    else

        {

        TInt offs( 0 );

        for ( i = 0 ; i < KFileManagerMaxFolderDepth; i++ )

            {

            // Root and Folder Icons

            iBitmapLayout[ i ].LayoutRect(

                parentRect,

                paneIconLayout.iC,

                paneIconLayout.il + offs,

                paneIconLayout.it,

                paneIconLayout.ir,

                paneIconLayout.ib,

                iconWidth,

                paneIconLayout.iH

                );

            offs += iconWidth;

            // Backslashes

            iTextLayout[ i ].LayoutText(

                parentRect,

                paneTextLayout.iFont,

                paneTextLayout.iC,

                paneTextLayout.il + offs,

                paneTextLayout.ir,

                paneTextLayout.iB,

                paneTextLayout.iW,

                paneTextLayout.iJ

                );

            offs += bsWidth;

            }

        // Dots

        iTextLayout[ i ].LayoutText(

            parentRect,

            paneTextLayout.iFont,

            paneTextLayout.iC,

            paneTextLayout.il + offs,

            paneTextLayout.ir,

            paneTextLayout.iB,

            paneTextLayout.iW,

            paneTextLayout.iJ

            );

        }

    }

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

// CFileManagerFolderNavigationPane::Draw

// 

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

// 

void CFileManagerFolderNavigationPane::Draw( const TRect& /*aRect*/ ) const

    {

    CWindowGc& gc = SystemGc();

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

    CFbsBitmap* bmp = NULL;

    TRgb color( KRgbWhite ); // Default never used

    bmp = AknsUtils::GetCachedBitmap( skin, KAknsIIDQsnComponentColorBmpCG2 );

    AknsUtils::GetCachedColor( skin, color, 

        KAknsIIDQsnComponentColors, EAknsCIQsnComponentColorsCG2 );

    AknIconUtils::SetSize( iRootMask, iBitmapLayout[ KFmgrRoot ].Rect().Size() );

    if ( bmp )

        {

        iBitmapLayout[ KFmgrRoot ].DrawImage( gc, bmp, iRootMask );

        }

    else

        {

        AknIconUtils::SetSize( iRootBitmap, iBitmapLayout[ KFmgrRoot ].Rect().Size() );

        iBitmapLayout[ KFmgrRoot ].DrawImage( gc, iRootBitmap, iRootMask );

        }

    if ( !bmp )

        {

        AknIconUtils::SetSize( iFolderBitmap, iBitmapLayout[ KFmgrFirstLevel ].Rect().Size() );

        bmp = iFolderBitmap;

        }

    // draw folder bitmaps depending on current folderdepth

    TInt count( iDepth > iMaxDepth ? iMaxDepth : iDepth );

    AknIconUtils::SetSize( iFolderMask, iBitmapLayout[ KFmgrFirstLevel ].Rect().Size() );

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

        {

        iBitmapLayout[ i ].DrawImage( gc, bmp, iFolderMask );

        }

    // draw backslashes between folderbitmaps depending on current folderdepth

    TInt tc( iDepth > ( iMaxDepth + 1 ) ? ( iMaxDepth + 1 ) : iDepth );

    for( TInt j( 0 ); j < tc; j++ )

        {

        const CFont* font = iTextLayout[j].Font(); // Not owned

        gc.UseFont( font );

        gc.SetPenColor( color );

        gc.DrawText( *iSeparator, iTextLayout[j].TextRect(),

            font->AscentInPixels(), CGraphicsContext::ELeft, 0 );

        }

    // draw "..." at the end if necessary

    if ( iDepth > iMaxDepth )

        {

        const CFont* font = iTextLayout[iMaxDepth+1].Font(); // Not owned

        gc.UseFont( font );

        gc.SetPenColor( color );

        gc.DrawText( *iEndChar, iTextLayout[iMaxDepth+1].TextRect(),

            font->AscentInPixels(), CGraphicsContext::ELeft, 0 );        

        }

    }

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

// CFileManagerFolderNavigationPane::HandleResourceChangeL

// (other items were commented in a header).

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

//

EXPORT_C void CFileManagerFolderNavigationPane::HandleResourceChangeL( TInt aType )

    {

    // Skin has propably changed so load bitmaps again

    if( aType == KAknsMessageSkinChange )

        {

        LoadFolderBitmapL();

        // Delete old to make sure that bitmaps are reloaded

        delete iRootBitmap;

        iRootBitmap = NULL;

        delete iRootMask;

        iRootMask = NULL;

        ChangeRootL( iRoot );

        }

    }

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

// CFileManagerFolderNavigationPane::ReportChange

// 

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

// 

void CFileManagerFolderNavigationPane::ReportChange()

    {

    // Leave is trapped because it's not critical to functionality.

    // If leave occurs, navipane just may not be redrawn at that very moment.

    TRAP_IGNORE( ReportEventL( MCoeControlObserver::EEventStateChanged ) );

    }

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

// CFileManagerFolderNavigationPane::ChangeRootL

// 

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

// 

EXPORT_C void CFileManagerFolderNavigationPane::ChangeRootL( const TInt aRoot )

    {

    // Do not reload icon if correct one is already in use

    if ( iRoot == aRoot && iRootBitmap && iRootMask )

        {

        return;

        }

    TIndicatorSet set;

    set.iId = aRoot;

    TInt index( iIndicatorArray.Find( set, TIndicatorSet::Compare ) );

    if ( index >= 0 )

        {

        set = iIndicatorArray[ index ];

        delete iRootBitmap;

        iRootBitmap = NULL;

        delete iRootMask;

        iRootMask = NULL;

        AknsUtils::CreateColorIconL( AknsUtils::SkinInstance(),

            set.iAknsItemIdRoot,

            KAknsIIDQsnIconColors,

            EAknsCIQsnIconColorsCG7,

            iRootBitmap, 

            iRootMask,

            set.iBmpFile,

            set.iIconId, 

            set.iMaskId,

            KRgbBlack );

        iRoot = aRoot;

        ReportChange();

        }

    }

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

// CFileManagerFolderNavigationPane::LoadFolderBitmapL

// 

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

// 

void CFileManagerFolderNavigationPane::LoadFolderBitmapL()

    {

    delete iFolderBitmap;

    iFolderBitmap = NULL;

    delete iFolderMask;

    iFolderMask = NULL;

    AknsUtils::CreateColorIconL( AknsUtils::SkinInstance(),

        iAknsItemIdFolder,

        KAknsIIDQsnIconColors,

        EAknsCIQsnIconColorsCG7,

        iFolderBitmap, 

        iFolderMask,

        *iBmpFile,

        iFolderIconId, 

        iFolderMaskId,

        KRgbBlack );

    }

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

// CFileManagerFolderNavigationPane::SetObserver

// 

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

// 

EXPORT_C void CFileManagerFolderNavigationPane::SetObserver(

        MFileManagerFolderNaviObserver* aObserver )

    {

    iObserver = aObserver;

    }

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

// CFileManagerFolderNavigationPane::CheckHitFolderLevel

// 

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

// 

TInt CFileManagerFolderNavigationPane::CheckHitFolderLevel(

        const TPoint& aPos )

    {

    TInt ret( KErrNotFound );

    TInt count( iDepth + 1 );

    count = Min( KFileManagerMaxFolderDepth, count );

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

        {

        const TRect& bmpRect( iBitmapLayout[ i ].Rect() );

        if ( bmpRect.Contains( aPos ) )

            {

            ret = i;

            break;

            }

        }