Пример #1
0
// -----------------------------------------------------------------------------
// AknsUtils::CreateIconLC
// -----------------------------------------------------------------------------
//
EXPORT_C void AknsUtils::CreateIconLC(
    MAknsSkinInstance* aInstance, const TAknsItemID& aID,
    CFbsBitmap*& aBitmap, CFbsBitmap*& aMask,
    const TDesC& aFilename,
    const TInt aFileBitmapId, const TInt aFileMaskId )
    {
    CFbsBitmap* bitmap = NULL;
    CFbsBitmap* mask = NULL;
    TBool fallback = EFalse;
    if( aInstance )
        {
        CAknsMaskedBitmapItemData* bmpData =
            static_cast<CAknsMaskedBitmapItemData*>(
            aInstance->CreateUncachedItemDataL( aID, EAknsITMaskedBitmap ) );
        CleanupStack::PushL( bmpData );
        if( bmpData && bmpData->Bitmap() && bmpData->Mask() )
            {
            // Detach bitmaps
            bitmap = bmpData->Bitmap();
            bmpData->SetBitmap( NULL );
            mask = bmpData->Mask();
            bmpData->SetMask( NULL );
            }
        CleanupStack::PopAndDestroy( bmpData );
        }

    if( bitmap ) // Mask is also loaded
        {
        CleanupStack::PushL( mask );
        CleanupStack::PushL( bitmap );
        }
    else
        {
        if( !aFilename.Length() )
            {
            User::Leave( KErrNotFound );
            }

        // Fallback
        AknIconUtils::CreateIconLC( bitmap, mask,
            aFilename, aFileBitmapId, aFileMaskId );
        fallback = ETrue;
        }

    if( (bitmap && mask) || fallback)
        {
        // Ownership transferred
        aBitmap = bitmap;
        aMask = mask;
        }
    else
        {
        User::Leave( KErrUnknown );
        }
    }
Пример #2
0
// -----------------------------------------------------------------------------
// AknsDrawUtils::DrawBackground()
// (commented in the header).
// -----------------------------------------------------------------------------
EXPORT_C TBool AknsDrawUtils::DrawBackground( MAknsSkinInstance* aInstance,
    MAknsControlContext* aContext, const CCoeControl* aControl,
    CBitmapContext& aGc, const TPoint& aDstPos,
    const TRect& aControlRect, const TInt aDrawParam )
    {
    TInt drawParam = aDrawParam;
    TInt originalParam = aDrawParam;
    TBool retVal = EFalse;
    TBool blitFailed = EFalse;
    TBool blit = EFalse;
    TBool blitAttempted = EFalse;

    if ( !&aGc )
        {
        return retVal;
        }

    MAknsControlContext* parentContext = GetParentContext( aContext );
    if( parentContext )
        {
        retVal = DrawBackground( aInstance, parentContext, aControl, aGc,
            aDstPos, aControlRect, aDrawParam );
        drawParam |= KAknsDrawParamNoClearUnderImage;
        }
    else if( drawParam & KAknsDrawParamBottomLevelRGBOnly )
        {
        drawParam |= KAknsDrawParamRGBOnly;
        }

    originalParam = drawParam;

    if( aContext )
        {
        aContext->UpdateContext();
        }

    TAknsBackground* bgLayout = RetrieveBackgroundLayout( aContext );

    TAknsItemID imgIID( KAknsIIDNone );
    CAknsImageItemData* imgData = RetrieveBackgroundImage(
        aInstance, bgLayout, imgIID );

    // chained background
    if (imgData && imgData->ParentIID() != KAknsIIDNone)
        {
        TAknsItemID parentiid = imgData->ParentIID();
        TRect parentDrawRect = imgData->DrawRect();

        imgData = RetrieveKnownBackgroundImage(
            aInstance, parentiid );
        if (imgData)
            {
            imgData->SetDrawRect(parentDrawRect);
            drawParam |= KAknsDrawParamChained ;
            }
        }

    TPoint paDelta = GetParentAbsoluteDelta( bgLayout, aControl );

    TRect drawRect = aControlRect;
    drawRect.Move( aDstPos-aControlRect.iTl );
    paDelta += aControlRect.iTl-aDstPos;

    if (!(aDrawParam & KAknsDrawParamPrepareOnly))
        {
        aGc.SetPenStyle(CGraphicsContext::ENullPen);
        aGc.SetBrushStyle(CGraphicsContext::ESolidBrush);
        }

    if ( !(aDrawParam & KAknsDrawParamIgnoreLayerMask))
        {
        if( imgData )
            {
            blitAttempted = ETrue;
            if( (drawParam&KAknsDrawParamNoClearUnderImage)==0 )
                {
                blit = BlitAndClear( aInstance, aGc, drawRect,
                    imgData, imgIID, bgLayout, paDelta, drawParam );
                }
            else
                {
                blit = Blit( aInstance, aGc, drawRect,
                    imgData, imgIID, bgLayout, paDelta, drawParam );
                }
            if ( !blit )
                {
                blitFailed = ETrue;
                }
            }
        else
            {
            if( !(drawParam&KAknsDrawParamNoClearUnderImage) &&
                !(drawParam&KAknsDrawParamPrepareOnly) )
                {
                // Clear only if permitted
                aGc.DrawRect( drawRect );
                }
            }
        }

    if( bgLayout )
        {
        if (!(aDrawParam & KAknsDrawParamIgnoreLayerMask) && aContext->IsCompatibleWithType(EAknsControlContextTypeMasked))
            {
            CAknsMaskedLayerBackgroundControlContext* layeredCxt = static_cast<CAknsMaskedLayerBackgroundControlContext*>(aContext);
            if (layeredCxt->iOffScreenBmp)
                {
                CAknsMaskedBitmapItemData* maskedImgData = NULL;
                TRAPD( err, maskedImgData = CAknsMaskedBitmapItemData::NewL() );
                if ( err != KErrNone )
                    {
                    return EFalse;
                    }
                maskedImgData->SetBitmap(layeredCxt->iOffScreenBmp);
                maskedImgData->SetMask(layeredCxt->iLayerMask);

                TAknsBackground* childLayout = bgLayout->iNext;

                blitAttempted = ETrue;
                blit = Blit( aInstance, aGc, drawRect, maskedImgData,
                    KAknsIIDNone, childLayout, paDelta, drawParam );
                if ( !blit )
                    {
                    blitFailed = ETrue;
                    }

                maskedImgData->SetBitmap(NULL);
                maskedImgData->SetMask(NULL);
                delete maskedImgData;
                if (!(aDrawParam & KAknsDrawParamPrepareOnly))
                    {
                    aGc.SetPenStyle(CGraphicsContext::ESolidPen);
                    aGc.SetBrushStyle(CGraphicsContext::ENullBrush);
                    }
                retVal = !blitFailed;
                return retVal;
                }
            }

        if (!aContext->IsCompatibleWithType(EAknsControlContextTypeFrame))
            {
            // special handling for frames
            drawParam|=KAknsDrawParamNoClearUnderImage;
            originalParam|=KAknsDrawParamNoClearUnderImage;
            }
        TAknsBackground* nextLayout = bgLayout->iNext;
        while( nextLayout &&
            ((drawParam & KAknsDrawParamLimitToFirstLevel) == 0) )
            {
            imgData = RetrieveKnownBackgroundImage( aInstance,
                nextLayout->iImageID );
            if (imgData && imgData->ParentIID() != KAknsIIDNone)
                {
                TAknsItemID parentiid = imgData->ParentIID();
                TRect parentDrawRect = imgData->DrawRect();

                imgData = RetrieveKnownBackgroundImage(
                    aInstance, parentiid );
                if (imgData)
                    {
                    imgData->SetDrawRect(parentDrawRect);
                    drawParam |= KAknsDrawParamChained ;
                    }
                }
            else
                {
                drawParam=originalParam;
                }
            if( imgData )
                {
                blitAttempted = ETrue;
                blit = BlitAndClear( aInstance, aGc, drawRect, imgData,
                    nextLayout->iImageID, nextLayout, paDelta, drawParam );
                if ( !blit )
                    {
                    blitFailed = ETrue;
                    }
                }
            nextLayout = nextLayout->iNext;
            }
        }

    if (!(aDrawParam & KAknsDrawParamPrepareOnly))
        {
        aGc.SetPenStyle(CGraphicsContext::ESolidPen);
        aGc.SetBrushStyle(CGraphicsContext::ENullBrush);
        }

    // If Blit failed, or was not even attempted => return EFalse
    if ( blitFailed )
        {
        retVal = EFalse;
        }
    else if ( !retVal )
        {
        retVal = blitAttempted;
        }

    return retVal;
    }