public int getTextOffset(int row, int col) {
		return field.screenLocationToTextOffset(row, col);
	}
Converts a row,col position to an text offset in the field
@param row the row
@param col the col
@return an offset into the text that represents the row,col position
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/AccessibleField.java