Anonymous

/** * Custom layout to display "full-screen" cover artwork with a * reflection effect.  This layout should contain only one view, which * will be placed over the bottom refection. */public class ReflectionLayout extends ViewGroup{	private static final String TAG = "ReflectionLayout";	private Paint mReflect = new Paint(Paint.FILTER_BITMAP_FLAG);	private Paint mPaint = new Paint(Paint.FILTER_BITMAP_FLAG);	private Bitmap mBitmap;	private Rect mImageDim = new Rect();	private Rect mReflectionClip = new Rect();	private Rect mReflectionDim = new Rect();	public ReflectionLayout(Context context)	{		super(context);		init();	}	public ReflectionLayout(Context context, AttributeSet attrs, Map inflateParams)	{		super(context, attrs, inflateParams);		init();	}	public ReflectionLayout(Context context, AttributeSet attrs, Map inflateParams, int defStyle)	{		super(context, attrs, inflateParams, defStyle);		init();	}	private void init()	{//		mReflect.setXfermode(new PorterDuff(PorterDuff.Mode.DST_OUT));	}	public void setImageURI(Uri uri)	{		try		{			mBitmap = BitmapFactory.decodeStream			  (mContext.getContentResolver().openInputStream(uri));		}		catch (Exception e)		{			Log.d(TAG, "Unable to read content: " + uri);		}		//		configureBounds();	}	public void setImageResource(int id)	{		mBitmap = BitmapFactory.decodeResource(getResources(), id);//		configureBounds();	}		private void configureBounds()	{		Log.d(TAG, "configureBounds()");				/* Not ready yet... */		if (getChildCount() == 0)			return;		int w = getMeasuredWidth();		int h = getMeasuredHeight();				if (w == 0 || h == 0)		{			Log.d(TAG, "...abort!");			return;		}		View v = getChildAt(0);		int vh = v.getMeasuredHeight();		int bw = mBitmap.getWidth();		int bh = mBitmap.getHeight();		/* TODO: Keep aspect ratio. */		assert bw == bh;		mImageDim.set(0, 0, w, h - vh);		float portion = (float)vh / (float)h;		Log.d(TAG, "bh="+ bh + ", portion=" + portion);		mReflectionClip.set(0, bh - (int)((float)bh * portion), bw, bh);		mReflectionDim.set(0, 0, w, vh);		LinearGradient shader =		  new LinearGradient(0, 0, 0, 10, 0xffff0000, 0xff00ff00,		    TileMode.MIRROR);		mReflect.setShader(shader);	}	@Override	protected void onLayout(boolean changed, int l, int t, int r, int b)	{		Log.d(TAG, "onLayout");				assert getChildCount() == 1;				configureBounds();				int selfw = getMeasuredWidth();		int selfh = getMeasuredHeight();				View v = getChildAt(0);		int vh = v.getMeasuredHeight();				Log.d(TAG, "selfw=" + selfw + ", selfh=" + selfh);		Log.d(TAG, "vh=" + vh);		v.layout(0, selfh - vh, selfw, selfh);	}	@Override	protected void onMeasure(int widthSpec, int heightSpec)	{		Log.d(TAG, "onMeasure...");				assert getChildCount() == 1;		View v = getChildAt(0);		v.measure		 (getChildMeasureSpec(widthSpec, 0, v.getLayoutParams().width),		  getChildMeasureSpec(heightSpec, 0, v.getLayoutParams().height));		/* XXX: Our layout doesn't play nice with any other usage than		 * the one we have in playlist.xml :) */		assert View.MeasureSpec.getMode(widthSpec) == View.MeasureSpec.EXACTLY;		assert View.MeasureSpec.getMode(heightSpec) == View.MeasureSpec.EXACTLY;		setMeasuredDimension		 (View.MeasureSpec.getSize(widthSpec),		  View.MeasureSpec.getSize(heightSpec));	}	@Override	protected void dispatchDraw(Canvas canvas)	{		assert getChildCount() == 1;		Rect r = new Rect();		getDrawingRect(r);				Log.d(TAG, "r=" + r);		Log.d(TAG, "clip=" + mReflectionClip);		Log.d(TAG, "dim=" + mReflectionDim);		canvas.drawBitmap(mBitmap, null, mImageDim, mPaint);		canvas.save();		canvas.translate(0, mImageDim.height() + mReflectionDim.height());		canvas.scale(1.0f, -1.0f);		canvas.drawBitmap(mBitmap, mReflectionClip, mReflectionDim,		  mReflect);		canvas.restore();		super.dispatchDraw(canvas);	}}