Esempio n. 1
0
// -----------------------------------------------------------------------------
// Blit
//
// Blits given image to gc.
//
// -----------------------------------------------------------------------------
//
inline static TBool Blit(
    MAknsSkinInstance* aSkin, CBitmapContext& aGc, const TRect& aTrgRect,
    CAknsImageItemData* aImgData, const TAknsItemID& aIID,
    const TAknsBackground* aLayout, const TPoint& aPADelta,
    const TInt aDrawParam )
    {
    CAknsAppSkinInstance* appInstance = 
        static_cast<CAknsAppSkinInstance*>(aSkin);
        
    if ( IsBackgroundItem( aIID,appInstance ) && 
            appInstance && appInstance->AnimBackgroundState() )
        {
        if( (aDrawParam&KAknsDrawParamPrepareOnly) )
            {
            return ETrue;
            }        
        
        TRgb color = KRgbWhite;
        color.SetAlpha(0x00);
        aGc.SetPenColor(color);
        aGc.SetBrushColor(color);
        aGc.SetPenStyle(CGraphicsContext::ESolidPen);
        aGc.SetBrushStyle(CGraphicsContext::ESolidBrush);
        aGc.SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha);
        TRect layoutRect( aTrgRect );
        if( aLayout )
            {
            layoutRect = aLayout->iRect;
            }
        layoutRect.Move( -aPADelta );

        TRect drawRect = aTrgRect;
        drawRect.Intersection( layoutRect );

        aGc.Clear(drawRect);
        return ETrue;
        }

    TRect layoutRect( aTrgRect );

    const TAknsImageAttributeData* attr = NULL;

    if( aLayout )
        {
        layoutRect = aLayout->iRect;

        if( aLayout->iAttr.iAttributes != EAknsImageAttributeNone )
            {
            attr = &(aLayout->iAttr);
            }
        }

    layoutRect.Move( -aPADelta );

    TRect drawRect(aTrgRect);
    drawRect.Intersection( layoutRect );

    return DrawPartialCachedImage( aSkin, aGc, layoutRect, drawRect,
        aImgData, aIID, attr, aDrawParam );
    }
void CBitmapAnimator::RenderMask(CBitmapContext& aBitmapContext, TInt aFrame) const
	{
	aBitmapContext.Reset();
	
	const CAnimationFrame& nextFrame = *iFrameArray[aFrame];

	if (aFrame == 0)
		{
		aBitmapContext.SetBrushColor(KRgbBlack);
		aBitmapContext.Clear(iMaxSize);		
		}
	else
		{
		const CAnimationFrame& currentFrame = *iFrameArray[aFrame - 1];
		if (currentFrame.FrameInfo().iFlags & TFrameInfo::ERestoreToBackground)
			{
			aBitmapContext.SetBrushColor(KRgbBlack);
			aBitmapContext.Clear(currentFrame.FrameInfo().iFrameCoordsInPixels);
			}
		}
	const TBool useMask = nextFrame.FrameInfo().iFlags&TFrameInfo::ETransparencyPossible || nextFrame.FrameInfo().iFlags&TFrameInfo::EAlphaChannel;
	if (useMask)
		{
		aBitmapContext.SetDrawMode(CGraphicsContext::EDrawModeOR);
		aBitmapContext.BitBlt(nextFrame.FrameInfo().iFrameCoordsInPixels.iTl, nextFrame.Mask(), nextFrame.FrameInfo().iOverallSizeInPixels);
		}
	else
		{
		aBitmapContext.SetBrushColor(KRgbWhite);
		if (nextFrame.FrameInfo().iOverallSizeInPixels != nextFrame.FrameInfo().iFrameSizeInPixels)
			{
			// If the frame size smaller than the overall size, the mask shall not take effect later in CBasicAnimation::Draw().
			aBitmapContext.Clear(nextFrame.FrameInfo().iOverallSizeInPixels);
			}
		else
			{
			aBitmapContext.Clear(nextFrame.FrameInfo().iFrameCoordsInPixels);
			}
		}
	}