Different label color for each bar

[nn14]

Hi, Is it possible to set the color of a label to a different color based upon the value of the bar?
E.g if the bar is 90% then show the label in red, else label should be in green.

[John Matthews]

One approach is to override the getItemPaint() method of your BarRenderer, as outlined here. You can use the row and col parameters to query your dataset and determine the desired color to return.

[nn14]

One approach is to override the getItemPaint() method of your BarRenderer, as outlined here. You can use the row and col parameters to query your dataset and determine the desired color to return.

thanks! One doubt, I have customized the bar color using the below code, didnt get on how to return the color of the label. Can you please clarify?

Code: Select all

@Override
		public Paint getItemPaint(int row, int column) {
			CategoryDataset dataset = getPlot().getDataset();
			double value = dataset.getValue(row, column).doubleValue();
			if (value < 0.75 && column == 1) {
				return Color.red;
			} else if (value >= 0.75 && column == 1) {
				return new Color(76, 184, 72);
			} else
				return new Color(195, 191, 191);

		}

[david.gilbert]

Have a look in the drawItemLabel() method of the AbstractCategoryItemRenderer class, you will see that the label paint comes from:

Code: Select all

Paint paint = getItemLabelPaint(row, column);

Override getItemLabelPaint() to return whatever color you need.