Thread Subject: Including CheckNodeTree.java to a Matlab GUI

Hello,

i found a great Java class: "CheckNodeTree".
It builds a tree, each node own a check box for activation or
deactivation.

I tried to include this class in Matlab, without sucess.

With:
tr = CheckNodeTree;
tr.setVisible(true);
... it runs in it own window.

But if I try to include it to a figure, using JavaComponent I receive
lots of errors.

Can anyone try it and help me?

Here the Javaclass:

import javax.swing.Icon;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.UIManager;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.MouseAdapter;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.plaf.ColorUIResource;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeCellRenderer;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeSelectionModel;
import javax.swing.tree.TreeModel;
import java.awt.event.*;
import java.util.Enumeration;
import javax.swing.border.TitledBorder;

/**
 * ?Chcek?JTree??
 * @version 1.1 01/15/99
 */
public class CheckNodeTree extends JTree {

 public CheckNodeTree() {
  this(new DefaultTreeModel(null));
 }

 public CheckNodeTree(TreeModel model) {
  super(model);

  setCellRenderer(new CheckRenderer());
 
getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SE
LECTION);
  addMouseListener(new NodeSelectionListener(this));
 }

 class NodeSelectionListener extends MouseAdapter {
  JTree tree;

  NodeSelectionListener(JTree tree) {
   this.tree = tree;
  }

  public void mouseClicked(MouseEvent e) {
   int x = e.getX();
   int y = e.getY();
   int row = tree.getRowForLocation(x, y);
   TreePath path = tree.getPathForRow(row);
   if (path != null) {
    DefaultMutableTreeNode node =
(DefaultMutableTreeNode)path.getLastPathComponent();
    if (node instanceof CheckNode) {
     CheckNode chNode = (CheckNode) node;
     boolean isSelected = ! (chNode.isSelected());
     chNode.setSelected(isSelected);
     if (chNode.getSelectionMode() == CheckNode.DIG_IN_SELECTION) {
      if ( isSelected) {
       tree.expandPath(path);
      } else {
       tree.collapsePath(path);
      }
     }
     ((DefaultTreeModel) tree.getModel()).nodeChanged(node);
     // I need revalidate if node is root. but why?
       if (row == 0) {
        tree.revalidate();
        tree.repaint();
       }
    }
   }
  }
 }

 public static void main(String args[]) {
  String[] strs = {"swing", // 0
    "platf", // 1
    "basic", // 2
    "metal", // 3
  "JTree"}; // 4

  CheckNode[] nodes = new CheckNode[strs.length];
  DefaultMutableTreeNode root = new DefaultMutableTreeNode("root");
  for (int i=0;i<strs.length;i++) {
   nodes[i] = new CheckNode(strs[i]);
  }
  root.add(nodes[0]);
  nodes[0].add(nodes[1]);
  nodes[1].add(nodes[2]);
  nodes[1].add(nodes[3]);
  nodes[0].add(nodes[4]);
  DefaultTreeModel model = new DefaultTreeModel(root);
  CheckNodeTree tree = new CheckNodeTree(model);
  JFrame frame = new JFrame("??");
  frame.addWindowListener(new WindowAdapter() {
   public void windowClosing(WindowEvent e) {
    System.exit(0);
   }
  });
  JScrollPane jsp = new JScrollPane(tree);
  frame.getContentPane().setLayout(new BorderLayout());
  frame.getContentPane().add(jsp, BorderLayout.CENTER);
  frame.setSize(300, 200);
  frame.setVisible(true);
 }
}

class CheckRenderer extends JPanel implements TreeCellRenderer {
 protected JCheckBox check;

 protected TreeLabel label;
 DefaultTreeCellRenderer dtcr = new DefaultTreeCellRenderer();
 public Chec

Sorry, there is missing the end of the Class:

[...] kRenderer() {
  setLayout(null);
  add(check = new JCheckBox());
  add(label = new TreeLabel());
  check.setBackground(UIManager.getColor("Tree.textBackground"));
  label.setForeground(UIManager.getColor("Tree.textForeground"));
 }

 public Component getTreeCellRendererComponent(JTree tree, Object
value,
   boolean isSelected, boolean expanded, boolean leaf, int row,
   boolean hasFocus) {
  if (!(value instanceof CheckNode)) {
   return dtcr.getTreeCellRendererComponent(tree, value, isSelected,
expanded, leaf, row, hasFocus);
  }
  String stringValue = tree.convertValueToText(value, isSelected,
    expanded, leaf, row, hasFocus);
  setEnabled(tree.isEnabled());
  check.setSelected(((CheckNode) value).isSelected());
  label.setFont(tree.getFont());
  label.setText(stringValue);
  label.setSelected(isSelected);
  label.setFocus(hasFocus);
  if (leaf) {
   label.setIcon(UIManager.getIcon("Tree.leafIcon"));
  } else if (expanded) {
   label.setIcon(UIManager.getIcon("Tree.openIcon"));
  } else {
   label.setIcon(UIManager.getIcon("Tree.closedIcon"));
  }
  return this;
 }

 public Dimension getPreferredSize() {
  Dimension d_check = check.getPreferredSize();
  Dimension d_label = label.getPreferredSize();
  return new Dimension(d_check.width + d_label.width,
    (d_check.height < d_label.height ? d_label.height
      : d_check.height));
 }

 public void doLayout() {
  Dimension d_check = check.getPreferredSize();
  Dimension d_label = label.getPreferredSize();
  int y_check = 0;
  int y_label = 0;
  if (d_check.height < d_label.height) {
   y_check = (d_label.height - d_check.height) / 2;
  } else {
   y_label = (d_check.height - d_label.height) / 2;
  }
  check.setLocation(0, y_check);
  check.setBounds(0, y_check, d_check.width, d_check.height);
  label.setLocation(d_check.width, y_label);
  label.setBounds(d_check.width, y_label, d_label.width,
d_label.height);
 }

 public void setBackground(Color color) {
  if (color instanceof ColorUIResource)
   color = null;
  super.setBackground(color);
 }

 public class TreeLabel extends JLabel {
  boolean isSelected;

  boolean hasFocus;
 
  public TreeLabel() {
  }

  public void setBackground(Color color) {
   if (color instanceof ColorUIResource)
    color = null;
   super.setBackground(color);
  }

  public void paint(Graphics g) {
   String str;
   if ((str = getText()) != null) {
    if (0 < str.length()) {
     if (isSelected) {
      g.setColor(UIManager
        .getColor("Tree.selectionBackground"));
     } else {
      g.setColor(UIManager.getColor("Tree.textBackground"));
     }
     
     Dimension d = getPreferredSize();
     int imageOffset = 0;
     Icon currentI = getIcon();
     if (currentI != null) {
      imageOffset = currentI.getIconWidth()
      + Math.max(0, getIconTextGap() - 1);
     }
     g.fillRect(imageOffset, 0, d.width - 1 - imageOffset,
       d.height);
     if (hasFocus) {
      g.setColor(UIManager
        .getColor("Tree.selectionBorderColor"));
      g.drawRect(imageOffset, 0, d.width - 1 - imageOffset,
        d.height - 1);
     }
    }
   }
   super.paint(g);
  }

  public Dimension getPreferredSize() {
   Dimension retDimension = super.getPreferredSize();
   if (retDimension != null) {
    retDimension = new Dimension(retDimension.width + 3,
      retDimension.height);
   }
   return retDimension;
  }

  public void setSelected(boolean isSelected) {
   this.isSelected = isSelected;
  }

  public void setFocus(boolean hasFocus) {
   this.hasFocus = hasFocus;
  }
 }
}

1. You forgot to mention the specific errors you get when trying to
add your java class to a Matlab figure.

2. Try using my UICOMPONENT (available on the File Exchange) - maybe
your problems were due to erroneous usage of Matlab's javacomponent
function, and the simpler syntax of UICOMPONENT will solve this.

3. Instead of using your java class, consider using Matlab's built-in
(although unsupported) uitree function.

Yair Altman

Yair Altman wrote:

> 1. You forgot to mention the specific errors you get when trying to
> add your java class to a Matlab figure.

Hi,

there is no error message. Just the tree is not visible.
There is only a white frame...
 

> 2. Try using my UICOMPONENT (available on the File Exchange) -
> maybe
> your problems were due to erroneous usage of Matlab's javacomponent
> function, and the simpler syntax of UICOMPONENT will solve this.

Thank you for the tip, I'll try.

> 3. Instead of using your java class, consider using Matlab's
> built-in
> (although unsupported) uitree function.

I tried UITree already, but (because it is unsupported) i don't know
how to add checkboxes to the nodes.

Greetings
Stephan

>> 2. Try using my UICOMPONENT (available on the File Exchange) -
>> maybe
>> your problems were due to erroneous usage of Matlab's
> javacomponent
>> function, and the simpler syntax of UICOMPONENT will solve
this.

Great, it's working!! :)

Here my code, usind UICOMPONENT:

          root = DefaultMutableTreeNode('Hallo 1')
          checkNode(1) = CheckNode('Hallo 2')
          root.add(checkNode(1))
          model = DefaultTreeModel(root)
          checkTree = CheckNodeTree(model)
          Tree = uicomponent(checkTree,'position',[50,50,100,150])

Stephan Hoffmann wrote:
>
> Great, it's working!! :)
>
> Here my code, usind UICOMPONENT:
>
> root = DefaultMutableTreeNode('Hallo 1')
> checkNode(1) = CheckNode('Hallo 2')
> root.add(checkNode(1))
> model = DefaultTreeModel(root)
> checkTree = CheckNodeTree(model)
> Tree = uicomponent(checkTree,'position',[50,50,100,150])
  

Why don't you post you Java class & Matlab wrapper to the File
Exchange? I'm sure that other Matlab users would find this submission
useful.

Yair Altman

Yair Altman wrote:
>
> Why don't you post you Java class & Matlab wrapper to the File
> Exchange? I'm sure that other Matlab users would find this
> submission
> useful.
>
> Yair Altman
  

I'll do it, when everything is working fine.
Just a little bit of fine tuning and documentation...

Thank you for your help.

Stephan Hoffmann wrote:
>
>
> Yair Altman wrote:
>>
>> Why don't you post you Java class & Matlab wrapper to the File
>> Exchange? I'm sure that other Matlab users would find this
>> submission
>> useful.
>>
>> Yair Altman
>
>
> I'll do it, when everything is working fine.
> Just a little bit of fine tuning and documentation...
>
> Thank you for your help.
  
Hello Stephan,

I was wondering if you already finish your code. I would like to do
some similar and i dont have a clue how to do it. So your code will
be very very helpful.

Thanks in advances,
Juan M. Romero Martin

Stephan Hoffmann wrote:
>
>
> Hello,
>
> i found a great Java class: "CheckNodeTree".
> It builds a tree, each node own a check box for activation or
> deactivation.
>
> I tried to include this class in Matlab, without sucess.
>
> With:
> tr = CheckNodeTree;
> tr.setVisible(true);
> ... it runs in it own window.
>
> But if I try to include it to a figure, using JavaComponent I
> receive
> lots of errors.
>
> Can anyone try it and help me?
>
> Here the Javaclass:
>
> import javax.swing.Icon;
> import javax.swing.JCheckBox;
> import javax.swing.JFrame;
> import javax.swing.JLabel;
> import javax.swing.JPanel;
> import javax.swing.JScrollPane;
> import javax.swing.JTree;
> import javax.swing.UIManager;
> import java.awt.BorderLayout;
> import java.awt.Color;
> import java.awt.Component;
> import java.awt.Dimension;
> import java.awt.Graphics;
> import java.awt.event.MouseAdapter;
> import java.awt.event.WindowAdapter;
> import java.awt.event.WindowEvent;
> import javax.swing.plaf.ColorUIResource;
> import javax.swing.tree.DefaultMutableTreeNode;
> import javax.swing.tree.DefaultTreeCellRenderer;
> import javax.swing.tree.DefaultTreeModel;
> import javax.swing.tree.TreeCellRenderer;
> import javax.swing.tree.TreePath;
> import javax.swing.tree.TreeSelectionModel;
> import javax.swing.tree.TreeModel;
> import java.awt.event.*;
> import java.util.Enumeration;
> import javax.swing.border.TitledBorder;
>
> /**
> * ?Chcek?JTree??
> * @version 1.1 01/15/99
> */
> public class CheckNodeTree extends JTree {
>
> public CheckNodeTree() {
> this(new DefaultTreeModel(null));
> }
>
> public CheckNodeTree(TreeModel model) {
> super(model);
>
> setCellRenderer(new CheckRenderer());
>
>
getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_
> SE
> LECTION);
> addMouseListener(new NodeSelectionListener(this));
> }
>
> class NodeSelectionListener extends MouseAdapter {
> JTree tree;
>
> NodeSelectionListener(JTree tree) {
> this.tree = tree;
> }
>
> public void mouseClicked(MouseEvent e) {
> int x = e.getX();
> int y = e.getY();
> int row = tree.getRowForLocation(x, y);
> TreePath path = tree.getPathForRow(row);
> if (path != null) {
> DefaultMutableTreeNode node =
> (DefaultMutableTreeNode)path.getLastPathComponent();
> if (node instanceof CheckNode) {
> CheckNode chNode = (CheckNode) node;
> boolean isSelected = ! (chNode.isSelected());
> chNode.setSelected(isSelected);
> if (chNode.getSelectionMode() == CheckNode.DIG_IN_SELECTION) {
> if ( isSelected) {
> tree.expandPath(path);
> } else {
> tree.collapsePath(path);
> }
> }
> ((DefaultTreeModel) tree.getModel()).nodeChanged(node);
> // I need revalidate if node is root. but why?
> if (row == 0) {
> tree.revalidate();
> tree.repaint();
> }
> }
> }
> }
> }
>
> public static void main(String args[]) {
> String[] strs = {"swing", // 0
> "platf", // 1
> "basic", // 2
> "metal", // 3
> "JTree"}; // 4
>
> CheckNode[] nodes = new CheckNode[strs.length];
> DefaultMutableTreeNode root = new DefaultMutableTreeNode("root");
> for (int i=0;i<strs.length;i++) {
> nodes[i] = new CheckNode(strs[i]);
> }
> root.add(nodes[0]);
> nodes[0].add(nodes[1]);
> nodes[1].add(nodes[2]);
> nodes[1].add(nodes[3]);
> nodes[0].add(nodes[4]);
> DefaultTreeModel model = new DefaultTreeModel(root);
> CheckNodeTree tree = new CheckNodeTree(model);
> JFrame frame = new JFrame("??");
> frame.addWindowListener(new WindowAdapter() {
> public void windowClosing(WindowEvent e) {
> System.exit(0);
> }
> });
> JScrollPane jsp = new JScrollPane(tree);
> frame.getContentPane().setLayout(new BorderLayout());
> frame.getContentPane().add(jsp, BorderLayout.CENTER);
> frame.setSize(300, 200);
> frame.setVisible(true);
> }
> }
>
> class CheckRenderer extends JPanel implements TreeCellRenderer {
> protected JCheckBox check;
>
> protected TreeLabel label;
> DefaultTreeCellRenderer dtcr = new DefaultTreeCellRenderer();
> public Chec

Juan Manuel Romero Martin wrote:
 
> Hello Stephan,
>
> I was wondering if you already finish your code. I would like to do
> some similar and i dont have a clue how to do it. So your code will
> be very very helpful.
>
> Thanks in advances,
> Juan M. Romero Martin
  

Its pretty easy. You can choose the Java-Code above, and a second
Java class which i post in the next posting.

You have to build the Java classes with the same Java Plattform
included in your Matlab version.
In Matlab R2007a JDK 1.5.0_07 is included.

In Matlab you can use Yair Altman's UICOMPONENT.
Eg.:
        javaaddpath C:\JAVA\CheckNodeTree\build\classes\

        import java.CheckNodeTree.build.classes.*;
        import javax.swing.tree.*;
        import javax.swing.JScrollPane;
    

        root = DefaultMutableTreeNode('Root'); %
Load Browser
        checkNode(1) = CheckNode('Node');
        
        root.add(checkNode(1));

        model = DefaultTreeModel(root);
        checkTree = CheckNodeTree(model);
        treeFrame = JScrollPane(checkTree);

        Browser = uicomponent(treeFrame,'position',[10,313,235,610]);

===========================================================

import java.util.Enumeration;
import javax.swing.tree.DefaultMutableTreeNode;

public class CheckNode extends DefaultMutableTreeNode {

 public final static int SINGLE_SELECTION = 0;

 public final static int DIG_IN_SELECTION = 4;

 protected int selectionMode;

 protected boolean isSelected;

 public CheckNode() {
  this(null);
 }

 public CheckNode(Object userObject) {
  this(userObject, true, false);
 }

 public CheckNode(Object userObject, boolean allowsChildren,
   boolean isSelected) {
  super(userObject, allowsChildren);
  this.isSelected = isSelected;
  setSelectionMode(DIG_IN_SELECTION);
 }

 public void setSelectionMode(int mode) {
  selectionMode = mode;
 }

 public int getSelectionMode() {
  return selectionMode;
 }

 public void setSelected(boolean isSelected) {
  this.isSelected = isSelected;

  if ((selectionMode == DIG_IN_SELECTION) && (children != null)) {
   Enumeration e = children.elements();
   while (e.hasMoreElements()) {
    CheckNode node = (CheckNode) e.nextElement();
    node.setSelected(isSelected);
   }
  }
 }

 public boolean isSelected() {
  return isSelected;
 }

 // If you want to change "isSelected" by CellEditor,
 /*
    public void setUserObject(Object obj) { if (obj instanceof
Boolean) {
  * setSelected(((Boolean)obj).booleanValue()); } else {
  * super.setUserObject(obj); } }
  */

}

Thanks very much Stephan. I appreciate your help. Your code will make
my life easier.

Stephan, has you see that: <http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=14583>

I didn't have time to check it yet, but look very helpful.

Thanks one more time, and tell me what you think about this link.

JuanMa

Juan Manuel Romero Martin wrote:

> Stephan, has you see that: <http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=14583>

Hi,

you need exactly this file to use the Java classes i posted.
Matlab's JAVACOMPONENT won't work.

Just download the file and copy it to your Workspace.

Stephan Hoffmann wrote:
>
>
> Juan Manuel Romero Martin wrote:
>
>> Stephan, has you see that: <http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=14583>
>
> Hi,
>
> you need exactly this file to use the Java classes i posted.
> Matlab's JAVACOMPONENT won't work.
>
> Just download the file and copy it to your Workspace.
  
Thanks very much Stephan, it works great. You showed me the light.
hehe ;-)

Stephan, do you know how i can make a Simulink Library Dynamically ?
Like, create a main core library block and star reading from diferent
folders different blocks and add them into the main library ???

Thanks in advances

> Stephan, do you know how i can make a Simulink Library Dynamically
> ?
> Like, create a main core library block and star reading from
> diferent
> folders different blocks and add them into the main library ???
>
> Thanks in advances
  

Sorry, i have never worked with simulink.
I am using just Matlab and the Signal Processing Toolbox.

Stephan Hoffmann wrote:
>
>
>> Stephan, do you know how i can make a Simulink Library
> Dynamically
>> ?
>> Like, create a main core library block and star reading from
>> diferent
>> folders different blocks and add them into the main library ???
>>
>> Thanks in advances
>
>
> Sorry, i have never worked with simulink.
> I am using just Matlab and the Signal Processing Toolbox.

Hello Stephan,

I got it, thanks anyway.

Have a nice day.

Hi all,

I am using the above two java classes (thanks Stephan !!!) in order
to build a tree containning a structure. My question is:

How can i create a function in Matlab that runs when i click down the
mouse?

and furthermore:

How can i make a function in Matlab that returns me which nodes have
been chosen so far. Is there a getSelectedNodes or something similar
that returns the selected nodes?

"Stephan Hoffmann" <Stephan.LIMITEDHoffmann@de.bosch.com> wrote in message <ef5a699.8@webcrossing.raydaftYaTP>...
> Juan Manuel Romero Martin wrote:
>
> > Hello Stephan,
> >
> > I was wondering if you already finish your code. I would like to do
> > some similar and i dont have a clue how to do it. So your code will
> > be very very helpful.
> >
> > Thanks in advances,
> > Juan M. Romero Martin
>
>
> Its pretty easy. You can choose the Java-Code above, and a second
> Java class which i post in the next posting.
>
> You have to build the Java classes with the same Java Plattform
> included in your Matlab version.
> In Matlab R2007a JDK 1.5.0_07 is included.
>
> In Matlab you can use Yair Altman's UICOMPONENT.
> Eg.:
> javaaddpath C:\JAVA\CheckNodeTree\build\classes\
>
> import java.CheckNodeTree.build.classes.*;
> import javax.swing.tree.*;
> import javax.swing.JScrollPane;
>
>
> root = DefaultMutableTreeNode('Root'); %
> Load Browser
> ...

Hello,

I want to make the same thing : a tree in matlab with checkboxes.
I try to use the code you paste in the article but it doesn't work.

Can you send me the final files ?

Thank you very much !

Best Regards.