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javaswingjtablejfreechart

Click a bar and select the corresponding JTabel record

I have a JScrollPane divided in two Jpanels as you can see in the picture:

enter image description here

On the right there is a JTable with three columns. On the left there is the corresponding histogram created with JFreeChart API.
I have to implement a listener on the histogram to ensure that when one presses on a bar, the corresponding record in the JTable on the left is selected.

To reach my target I implement this listener:

    chartPanel.addChartMouseListener(new ChartMouseListener() {

        @Override
        public void chartMouseMoved(ChartMouseEvent arg0) {
        }

        @Override
        public void chartMouseClicked(ChartMouseEvent arg0) {

            try{
            TableModel model = table.getModel();    
            CategoryItemEntity entity = (CategoryItemEntity) arg0.getEntity();
            Comparable row = entity.getRowKey();
            Comparable col = entity.getColumnKey();
            System.out.println(String.valueOf(row));
            String field = String.valueOf(col);

                for(int i = 0; i<model.getRowCount(); i++) {
                    if(model.getValueAt(i, 0).equals(field)) {
                        table.changeSelection(i, 0, false, false);

                    }
                }
            }
            catch (Exception e) {
                System.out.println("No bars selected");
            }


        }
    });

This listener works correctly until one orders the JTable by clicking on the header. For example, if one orders the JTable according to Number of occurrences, when one presses a bar of the histogram, the selected row in the JTable does not correspond to the clicked bar.

---Edit

When one presses a bar, I have to selected the correspondig record in the JTable. For example, suppose one presses "Bronx" bar:

enter image description here

My code works correctly until one orders the JTable by clicking on the header field (borough, type, Number of Occurrences).

Solution

  • You must convert the view row number to exact row number.

    You can do this by:

    int realRowNumber = table.convertRowIndexToModel(viewRowIndex);