/**
* Highlights the value at the given x-index in the given DataSet. Provide -1 as the x-index or
* dataSetIndex to undo all highlighting.
*
* @param xIndex
* @param dataSetIndex
*/
public void highlightValue(int xIndex, int dataSetIndex) {
if (xIndex < 0
|| dataSetIndex < 0
|| xIndex >= mData.getXValCount()
|| dataSetIndex >= mData.getDataSetCount()) {
highlightValues(null);
} else {
highlightValues(new Highlight[] {new Highlight(xIndex, dataSetIndex)});
}
}
/**
* calculates the required number of digits for the values that might be drawn in the chart (if
* enabled), and creates the default-value-formatter
*/
protected void calculateFormatter(float min, float max) {
float reference = 0f;
if (mData == null || mData.getXValCount() < 2) {
reference = Math.max(Math.abs(min), Math.abs(max));
} else {
reference = Math.abs(max - min);
}
int digits = Utils.getDecimals(reference);
mDefaultFormatter = new DefaultValueFormatter(digits);
}
@Override
public int getXValCount() {
return mData.getXValCount();
}
/**
* returns the x-value at the given index
*
* @param index
* @return
*/
public String getXValue(int index) {
if (mData == null || mData.getXValCount() <= index) return null;
else return mData.getXVals().get(index);
}
