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

# 5 years ago
tachuynh	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. Attachments:

# 5 years ago

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.

# 5 years ago
Jean-Luc	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

# 5 years ago
tachuynh	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 Edited 5 years ago

# 5 years ago
Jean-Luc	Yes it is included in ATK 9.3.8.

# 5 years ago
tachuynh	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.

# 5 years ago
Jean-Luc	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.

# 5 years ago

Jean-Luc

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.