Need help with JDraw to display a Trend for Scalar Attribute when mouse press

Development Java
1

Need help with JDraw to display a Trend for Scalar Attribute when mouse press

I have a SimpleScalarViewer in JDraw and want to display a pop up Trend when a mouse press in the SimpleScalarViewer area.
I tried to configure className and classParam under Extensions tab with className = fr.esrf.tangoatk.widget.attribute.Trend but it has no effect?

Please help.
Thanks in advance.
Tac.

2

Hello,
The click on JDSwingObject was not possible so I fixed this in the last ATK release (9.3.8).
I also added a simple panel to display a trend on a NumberScalar but It is a simple panel and if you want something more sophisticated you need to write your own. You can take fr.esrf.tangoatk.widget.util.SimpleTrend as an example.
Jean-Luc

3

Thank you Jean-Luc.
Where do I can download fr.esrf.tangoatk.widget.util.SimpleTrend, or it is already part of the ATK 9.3.8?
Tac

4

Yes it is included in ATK 9.3.8.

5

Thanks Jean-Luc:
It worked.
Another question is: Can I pass the Dataview options, Smoothing, Flat, Neighbors = 50 to the fr.esrf.tangoatk.widget.util.SimpleTrend?
If so, how do I set them?
Tac.

6

No, as I said the SimpleTrend is a very simple panel.
You can write your own class and set-up option by code.
Here is an example of a Panel that do want you want:


package MyPanels;

import fr.esrf.tangoatk.core.*;
import fr.esrf.tangoatk.widget.attribute.Trend;

import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 * Simple trend frame (number scalar only)
 */
public class SimpleTrend extends JFrame {

  AttributePolledList attList;
  Trend trend;

  public SimpleTrend(String attName) {

    setTitle(attName);
    setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
    trend = new Trend(this);
    trend.setPreferredSize(new Dimension(800,600));
    setContentPane(trend);

    addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        exitPanel();
      }
    });
    IEntity att;
    attList = new AttributePolledList();
    try {
      att = attList.add(attName);
    } catch (ConnectionException e1) {
      ErrorPane.showErrorMessage(this,attName,e1);
      return;
    }

    if(! (att instanceof INumberScalar) ) {
      JOptionPane.showMessageDialog(this,"SimpleTrend supports only number scalar");
      return;
    }

    trend.setModel(attList);
    trend.setSelectionTreeVisible(false);
    trend.addToAxis(attName,Trend.SEL_Y1,false);

    JLDataView v = trend.getDataViewForAttribute(attName);
    v.setSmoothingMethod(JLDataView.SMOOTH_FLAT);
    v.setSmoothingNeighbors(50);

    attList.startRefresher();
    ATKGraphicsUtils.centerFrameOnScreen(this);
    setVisible(true);

  }

  private void exitPanel() {
    attList.clear();
    attList.stopRefresher();
    dispose();
  }

}

Then you just have to add this class to your CLASSPATH and set up the className to MyPabnels.SimpleTrend.