calculate resized image size in rect

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/**

use like below

Point pt=calculateFitImage(baseImage,width,height,null);
Bitmap resizedBitmap = Bitmap Bitmap.createScaledBitmap(baseImage,
				pt.x, pt.y, true);
*/
	public static Point calculateFitImage(Bitmap baseImage,int width,int height,Point receiver){
		if(receiver==null){
			receiver=new Point();
		}
		int dw=width;
		int dh=height;
		
		
		if(dw!=0 && dh!=0 ){
			double waspect=(double)dw/baseImage.getWidth();
			double haspect=(double)dh/baseImage.getHeight();
			if(waspect>haspect){//fit h
				dw=(int) (baseImage.getWidth()*haspect);
				
			}else{
				dh=(int)(baseImage.getHeight()*waspect);
			}
			Log.i("imageUtil","waspect="+waspect+" haspect="+haspect+" dw="+dw+" dh="+dh);
		}
		receiver.x=dw;
		receiver.y=dh;
		return receiver;
	}