/*

* Copyright (c) 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: Attachment indicator implementation

*

*/

#include "cmrattachmentindicator.h"

#include <biditext.h>

#include <AknUtils.h>

#include <AknIconUtils.h>

#include <AknBidiTextUtils.h>

namespace

{

const TInt KImageMargin = 8;

const TInt KTextMargin = 4;

const TInt KRoundBoundaryEllipse = 5;

const TInt KTruncationCharsWidth = 20;

}

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

// CMRAttachmentIndicator::CMRAttachmentIndicator

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

//

CMRAttachmentIndicator::CMRAttachmentIndicator()

    : iBitmap( NULL ),

    iMaskBitmap( NULL ),

    iText( NULL ),

    iVisualText( NULL ),

    iTextFont( NULL )

    {

    }

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

// CMRAttachmentIndicator::~CMRAttachmentIndicator

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

//

CMRAttachmentIndicator::~CMRAttachmentIndicator()

    {

    ClearImage();

    ClearText();

    }

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

// CMRAttachmentIndicator::CMRAttachmentIndicator

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

//

CMRAttachmentIndicator* CMRAttachmentIndicator::NewL(

        const TRect& aRect,

        const CCoeControl* aParent )

    {

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

    CleanupStack::PushL( self );

    self->ConstructL( aRect, aParent );

    CleanupStack::Pop( self );

    return self;

    }

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

// CMRAttachmentIndicator::ConstructL

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

//

void CMRAttachmentIndicator::ConstructL(

        const TRect& aRect,

        const CCoeControl* aParent )

    {

    CreateWindowL( aParent );

    SetRect( aRect );

    ActivateL();

    MakeVisible( EFalse );

    }

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

// CMRAttachmentIndicator::ShowIndicatorL

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

//

void CMRAttachmentIndicator::ShowIndicatorL(

        CFbsBitmap* aBitmap,

        CFbsBitmap* aMaskBitmap,

        const TDesC& aText,

        TInt /*aDuration*/ )

    {

    SetImage( aBitmap, aMaskBitmap );

    SetTextL( aText );

    MakeVisible( ETrue );

    DrawNow();

    }

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

// CMRAttachmentIndicator::SetTextL

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

//

void CMRAttachmentIndicator::SetTextL( const TDesC& aText )

    {

    SetTextFont();

    ClearText();

    iText = aText.AllocL();

    if ( aText.Length() )

        {

        iVisualText = HBufC::NewL( aText.Length() + KAknBidiExtraSpacePerLine );

        CalculateVisualText();

        }

    if ( IsVisible() )

        {

        DrawNow();

        }

    }

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

// CMRAttachmentIndicator::SetImage

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

//

void CMRAttachmentIndicator::SetImage(

        CFbsBitmap* aBitmap,

        CFbsBitmap* aMaskBitmap )

    {

    ClearImage();

    iBitmap = aBitmap;

    iMaskBitmap = aMaskBitmap;

    ScaleImage();

    }

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

// CMRAttachmentIndicator::HideIndicator

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

//

void CMRAttachmentIndicator::HideIndicator( TInt aDelayBeforeHidingInMs )

    {

    if ( aDelayBeforeHidingInMs == 0 )

        {

        MakeVisible( EFalse );

        }

    }

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

// CMRAttachmentIndicator::ComponentControl

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

//

CCoeControl* CMRAttachmentIndicator::CMRAttachmentIndicator::ComponentControl( TInt /*aIndex*/ ) const

    {

    return NULL;

    }

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

// CMRAttachmentIndicator::CountComponentControls

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

//

TInt CMRAttachmentIndicator::CountComponentControls() const

    {

    return 0;

    }

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

// CMRAttachmentIndicator::Draw

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

//

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

    {

    CWindowGc& gc = SystemGc();

    gc.Clear( aRect );

    DrawBoundary( aRect );

    DrawImage( iImageRect );

    DrawText( iTextRect );

    }

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

// CMRAttachmentIndicator::SizeChanged

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

//

void CMRAttachmentIndicator::SizeChanged()

    {

    CalculateLayout( Rect() );

    ScaleImage();

    CalculateVisualText();

    }

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

// CMRAttachmentIndicator::Image

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

//

const CFbsBitmap* CMRAttachmentIndicator::Image() const

    {

    return iBitmap;

    }

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

// CMRAttachmentIndicator::ImageMask

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

//

const CFbsBitmap* CMRAttachmentIndicator::ImageMask() const

    {

    return iMaskBitmap;

    }

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

// CMRAttachmentIndicator::Text

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

//

const TDesC& CMRAttachmentIndicator::Text() const

    {

    return *iText;

    }

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

// CMRAttachmentIndicator::CalculateLayout

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

//

void CMRAttachmentIndicator::CalculateLayout( const TRect& aRect ) const

    {

    TSize imageSize = aRect.Size();

    imageSize.iHeight = imageSize.iHeight - 2 * KImageMargin;

    imageSize.iWidth = imageSize.iWidth - 2 * KImageMargin;

    if ( imageSize.iWidth > imageSize.iHeight )

        {

        imageSize.iWidth = imageSize.iHeight;

        }

    else

        {

        imageSize.iHeight = imageSize.iWidth;

        }

    TSize textSize = aRect.Size();

    textSize.iHeight = textSize.iHeight - 2 * KTextMargin;

    textSize.iWidth = textSize.iWidth - 2 * KTextMargin - 2 * KImageMargin - imageSize.iWidth;

    TLanguage language = User::Language();

    TBidiText::TDirectionality  direction = TBidiText::ScriptDirectionality( language );

    if ( direction == TBidiText::ELeftToRight )

        {

        TPoint imageLeftTop ( aRect.iTl.iX + KImageMargin, aRect.iTl.iY + KImageMargin );

        iImageRect.SetRect( imageLeftTop, imageSize );

        TPoint textLeftTop ( aRect.iTl.iX + 2*KImageMargin + imageSize.iWidth + KTextMargin, aRect.iTl.iY + KTextMargin );

        iTextRect.SetRect( textLeftTop, textSize );

        }

    else

        {

        TPoint imageLeftTop ( aRect.iBr.iX - KImageMargin - imageSize.iWidth, aRect.iTl.iY + KImageMargin );

        iImageRect.SetRect( imageLeftTop, imageSize );

        TPoint textLeftTop ( aRect.iTl.iX + KTextMargin, aRect.iTl.iY + KTextMargin );

        iTextRect.SetRect( textLeftTop, textSize );

        }

    }

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

// CMRAttachmentIndicator::SetTextFont

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

//

void CMRAttachmentIndicator::SetTextFont() const

    {

    if ( iTextFont )

        return;

    const CFont* font = AknLayoutUtils::FontFromId( EAknLogicalFontPrimarySmallFont );

    iTextFont = CONST_CAST( CFont*, font );

    }

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

// CMRAttachmentIndicator::CalculateVisualText

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

//

void CMRAttachmentIndicator::CalculateVisualText() const

    {

    if ( iVisualText )

        {

        TPtr visualText = iVisualText->Des();

        visualText.Zero();

        TInt MaxWidthInPixels = iTextRect.Size().iWidth - KTruncationCharsWidth;

        TInt MaxClippedWidthInPixels = iTextRect.Size().iWidth;

        AknBidiTextUtils::ConvertToVisualAndClip( *iText,

                                                  visualText,

                                                  *iTextFont,

                                                  MaxWidthInPixels,

                                                  MaxClippedWidthInPixels );

        }

    }

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

// CMRAttachmentIndicator::DrawBoundary

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

//

void CMRAttachmentIndicator::DrawBoundary( const TRect& aRect ) const

    {

    CWindowGc& gc = SystemGc();

    gc.SetPenColor( KRgbCyan );

    TSize ellipse( KRoundBoundaryEllipse, KRoundBoundaryEllipse );

    gc.DrawRoundRect( aRect, ellipse);

    }

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

// CMRAttachmentIndicator::DrawImage

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

//

void CMRAttachmentIndicator::DrawImage( const TRect& aRect ) const

    {

    if ( !iBitmap )

        return;

    CWindowGc& gc = SystemGc();

    if ( iMaskBitmap )

        {

        TRect bmpPieceRect(TPoint(0,0), aRect.Size() );

        gc.BitBltMasked( aRect.iTl, iBitmap, bmpPieceRect, iMaskBitmap, EFalse );

        }

    else

        {

        gc.DrawBitmap( aRect, iBitmap );

        }

    }

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

// CMRAttachmentIndicator::DrawText

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

//

void CMRAttachmentIndicator::DrawText( const TRect& aRect ) const

    {

    if ( !iVisualText )

        return;

    if ( iVisualText->Length() == 0 )

        return;

    TLanguage language = User::Language();

    TBidiText::TDirectionality  direction = TBidiText::ScriptDirectionality( language );

    CGraphicsContext::TTextAlign alignment = CGraphicsContext::ELeft;

    if ( direction == TBidiText::ERightToLeft )

        {

        alignment = CGraphicsContext::ERight;

        }

    CWindowGc& gc = SystemGc();

    gc.UseFont( iTextFont );

    TInt baseline = aRect.Height() / 2 + iTextFont->FontMaxAscent() / 2;

    gc.SetPenColor(KRgbBlack);

    gc.DrawText( *iVisualText, aRect, baseline, alignment, 0);

    }

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

// CMRAttachmentIndicator::ScaleImage

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

//

void CMRAttachmentIndicator::ScaleImage() const

    {

    if ( iBitmap )

        {

        AknIconUtils::DisableCompression( iBitmap );

        AknIconUtils::SetSize( iBitmap, iImageRect.Size(), EAspectRatioPreserved );

        }

    if ( iMaskBitmap )

        {

        AknIconUtils::DisableCompression( iMaskBitmap );

        AknIconUtils::SetSize( iMaskBitmap, iImageRect.Size(), EAspectRatioPreserved );

        }

    }

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

// CMRAttachmentIndicator::ClearImage

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

//

void CMRAttachmentIndicator::ClearImage()

    {

    delete iBitmap;

    iBitmap = NULL;

    delete iMaskBitmap;

    iMaskBitmap = NULL;

    }

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

// CMRAttachmentIndicator::ClearText

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

//

void CMRAttachmentIndicator::ClearText()

    {

    delete iText;

    iText = NULL;

    delete iVisualText;

    iVisualText = NULL;

    }

// EOF