Method getValue

ij/src/main/java/ij/macro/Functions.java:5403–5481

()

	}

	double getValue() {
		interp.getLeftParen();
		if (!isStringArg()) {  // getValue(x,y)
			double x = interp.getExpression();
			double y = getLastArg();
			int ix = (int)x;
			int iy = (int)y;
			if (x==ix && y==iy)
				return getProcessor().getPixelValue(ix,iy);
			else
				return getProcessor().getInterpolatedValue(x,y);
		}
		String key = getString();
		interp.getRightParen();
		if (key.equals("image.size"))
			return getImage().getSizeInBytes();
		else if (key.equals("rgb.foreground"))
			return Toolbar.getForegroundColor().getRGB()&0xffffff;
		else if (key.equals("rgb.background"))
			return Toolbar.getBackgroundColor().getRGB()&0xffffff;
		else if (key.contains("foreground")) {
			double value = Toolbar.getForegroundValue();
			if (Double.isNaN(value))
				return getColorValue(Toolbar.getForegroundColor());
			else
				return value;
		} else if (key.contains("background")) {
			double value = Toolbar.getBackgroundValue();
			if (Double.isNaN(value))
				return getColorValue(Toolbar.getBackgroundColor());
			else
				return value;
		} else if (key.equals("font.size")) {
			resetImage();
			ImageProcessor ip = getProcessor();
			setFont(ip);
			return ip.getFont().getSize();
		} else if (key.equals("font.height")) {
			resetImage();
			ImageProcessor ip = getProcessor();
			setFont(ip);
			return ip.getFontMetrics().getHeight();
		} else if (key.equals("selection.size")) {
			ImagePlus imp = getImage();
			Roi roi = imp.getRoi();
			if (roi==null)
				return 0.0;
			else
				return roi.size();
		} else if (key.equals("selection.width")) {
			ImagePlus imp = getImage();
			Roi roi = imp.getRoi();
			if (roi==null)
				interp.error("No selection");
			return roi.getStrokeWidth();
		} else if (key.equals("results.count")) {
			ResultsTable rt = getResultsTable(false);
			return rt!=null?rt.size():0;