Change JTree Node Color
Hi,
I set the background of a JTree to orange color by:
jTree1.setBackground(Color.orange);
However, the space around text is still in white color. Can anyone tell me how to change it too? Thanks.
Hi, you could try -
((JComponent)
yourTree.getCellRenderer()).setOpaque(false);
I've not actually tested this, I'm just in the process
of figuring out the details of using trees.
colinThanks. It works with "yourTree.getCellRenderer()).setOpaque(true);"
Similar Messages
-
how do i change the Node color in the JTree
What do you mean it doesn't help you? PhHein told you you need to use TreeCellRenderer and gave you a link to a tutorial, what more do you want? You need to create a class that implements TreeCellRenderer like:
private static class CellRenderer implements TreeCellRendererAnd implement this method:
public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected,
boolean expanded, boolean leaf, int row, boolean hasFocus)If you want to be spoon fed, you need to pay for a tutor. -
JTree Node Color, to distinguish between different activities
Hi,
Situation: Dynamic JTree (Tree is constructed from as a result of Database). User has the option to either Enable / Disable node and can repeat the activities but restricted only one activity per node, the node is to be highlighted; to restrict the user from further activities.
Problem: Am a newbie to swing, after searching the forum for the same, i found few good solutions which are specific to color change of specific selected node, in a temporary context.
But we need the node color change within a same level; to distinguish either the node is either enabled / disabled.
Your help is appreciated,durino13 wrote:
1. Is the approach above a good approach, how to load children 'lazilly'?Sounds pretty reasonable to me.
2. I also use custom renderer to display different icons for every "tree" level. When I initially expand the 4th level, everything works fine !!! Then I collapse the 4th level and expand it again and here my problem starts: my 4th level icon is set to 'root level icon' instead of '4th level' icon. This does not happen, if computerNode.removeAllChildren(); method is removed from listening above
Any idea, what am i doing wrong?Ummmm... Load the model the first time (only) the node is expanded... Putz!
And I suggest you listen deeply to Mr Jacobs... He really does know what he's talking about ;-)
... and not this time, but in future: Swing questions are best asked in [THE Swing Forum|http://forums.sun.com/forum.jspa?forumID=57].
Cheers. Keith. -
Changing JTree node text results in "..."
I'm working with a JTree, and I have a problem if I change the text displayed on a node. After changing the node, I call nodeChanged( node ) on the tree model.
What happens is that if the new text on the node is longer than the previous one, the text is cut short and the end replaced by "...". E.g. if the old text was "foo" and the new is "foobar", it turns out as "foo...". This happens even if there is more than enough space in the tree to hold the complete new name, e.g other nodes in the same column with longer names.
I guess somehow, the tree doesn't properly correct the layout of the cell to accomodate the longer text. I feel it is a bug, since I use the proper calls on the tree model to notify of the change.nodeStructureChanged() will give the exact same behavior.
A solution is to use SwingUtilities.invokeLater().
SwingUtilities.invokeLater(new Runnable(){
public void run(){model.nodeChanged(node);}
}); -
How to change JTree nodes background?
hello there
i have a jtree which i set its background to red
but the nodes background is still white
why?and how to set the nodes background to red too?
and how to remove the tree border
because i tried setting it to null and it doesn't work?
here is my code:
package view;
import java.awt.Color;
import javax.swing.*;
import javax.swing.tree.*;
class TreeComponent{
public static void main(String[] args) {
JFrame frame = new JFrame("Creating a JTree Component!");
DefaultMutableTreeNode parent = new DefaultMutableTreeNode("Color", true);
DefaultMutableTreeNode black = new DefaultMutableTreeNode("Black");
DefaultMutableTreeNode blue = new DefaultMutableTreeNode("Blue");
DefaultMutableTreeNode nBlue = new DefaultMutableTreeNode("Navy Blue");
DefaultMutableTreeNode dBlue = new DefaultMutableTreeNode("Dark Blue");
DefaultMutableTreeNode green = new DefaultMutableTreeNode("Green");
DefaultMutableTreeNode white = new DefaultMutableTreeNode("White");
parent.add(black);
parent.add(blue);
blue.add(nBlue);
blue.add(dBlue);
parent.add(green );
parent.add(white);
JTree tree = new JTree(parent);
tree.setBackground(Color.red);
tree.setBorder(null);
frame.add(tree);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setUndecorated(true);
frame.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
frame.setSize(200,200);
frame.setVisible(true);
}how to set the nodes background to red too?
((JComponent) tree.getCellRenderer()).setOpaque(true);[/code\
how to remove the tree borderWhat border?
db -
Is it possible to change TreeView's background color, not node color?
In advance, Thanks!!
Actually, I've made my own treeview in my project. and I've changed my treeview node color as i want
I wonder whether or not to change treeview's background color, not node color in below class.
// in ~.fr
Class
kMyTreeViewWidgetBoss,
kTreeViewWidgetBoss,
IID_ICONTROLVIEW, kMyTreeViewCtrlViewImpl,
IID_ITREEVIEWWIDGETMGR, kMyTreeViewListBoxWidgetMgrImpl,
IID_ITREEVIEWHIERARCHYADAPTER, kMyTreeViewListBoxHierarchyAdapterImpl,
IID_ISTRINGLISTDATA, kStringListDataImpl,
IID_IOBSERVER, kMyTreeViewCtrlBoxObserverImpl,
type MainTreeViewListBox(kViewRsrcType) : TreeViewWidget (ClassID = kMyTreeViewWidgetBoss) {};
MainTreeViewListBox //Tree view
kMyTreeViewWithTextListWidgetID, kPMRsrcID_None, // WidgetId, RsrcId
kBindAll, // Frame binding
Frame(-1, 26, 300, 276) // Frame
kTrue, kTrue, // Visible, Enabled
kTrue, // EraseBeforeDraw
kInterfacePaletteFill, // InterfaceColor
kHideRootNode,// | kDrawEndLine, // Options. Display root node
kFalse, // Use H Scroll bar
kTrue, // Use V scroll bar
20, // fVScrollButtonIncrement
20, // fVThumbScrollIncrement
0, // fHScrollButtonIncrement
0, // fHThumbScrollIncrement
2, // Items selectable, 0 = No Selection, 1 = Single Selection, 2 = Multiple Selection
kFalse, // Allow children from multiple parents to be selected
kTrue, // Allow discontiguous selection
//The tree view is dynamically created.
class MyTreeViewCtrlView : public PanelView
virtual void Draw(IViewPort* viewPort, SysRgn updateRgn);
void MyTreeViewCtrlView::Draw( IViewPort* viewPort, SysRgn updateRgn )
AGMGraphicsContext gc(viewPort, this, updateRgn);
InterfacePtr<IGraphicsPort> gPort(gc.GetViewPort(), UseDefaultIID()); // IID_IGRAPHICSPORT);
ASSERT(gPort);
gPort->gsave();
PMRect frameOut = GetFrame();
frameOut.MoveTo(0, 0);
COLORREF crBackColor = RGB( 255, 0, 0 );
gPort->setrgbcolor( GetRGBtoReal( GetRValue(crBackColor) ), GetRGBtoReal( GetGValue(crBackColor) ), GetRGBtoReal( GetBValue (crBackColor) ));
gPort->rectpath(frameOut);
gPort->fill();
gPort->grestore();
PanelView::Draw( viewPort, updateRgn );
In above case, there are errors in kMyTreeViewCtrlViewImple when Indesign is launching.
// Error Assert
XferObject- ReadWrite for impl kMyTreeViewCtrlViewImpl of iid IID_ICONTROLVIEW in class kMyTreeViewWidgetBoss read wrong amount in plugin kMyTreeViewWidgetBoss
but, in kMyTreeViewWidgetBoss ClassDescriptionTable, when remove this( IID_ICONTROLVIEW, kMyTreeViewCtrlViewImpl), that's ok. but I can't change background color. just interfacepalettefill color
Please help me!!Here's a sample!
That's all.
#define GetRGBtoReal( X ) (double) X / (double) 255.f
COLORREF crBackColor = RGB( 255, 0, 0 );
gPort->setrgbcolor( GetRGBtoReal( GetRValue(crBackColor) ), GetRGBtoReal( GetGValue(crBackColor) ), GetRGBtoReal( GetBValue(crBackColor) )); -
Set different color for one JTree node
hello,
I managed to find how to set a color for Jtree nodes but the problem is that with my method all the nodes will b the same color whereas i'm looking to have nodes of different color depending on the situation.
the method for setting all Jtree nodes the same color(other than black):
tree.setCellRenderer(
new DefaultTreeCellRenderer() {
public Color getTextNonSelectionColor() {
return Color.lightGray; } });I WANT TO CHOSSE EACH COLOR FOR EACH NODE
help plz
thanksYou need to implement TreeCellRenderer interface
public Component getTreeCellRendererComponent(JTree tree,
Object value,
boolean sel,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus)You can know which node is rendering by check value argument. Please read DefaultTreeCellRenderer's code. -
hi,
I have created a JTree node and i want to change the nodes string.
say for example from "child1" to "newchild1". Only the text displayed on the tree shoud be changed and the new value is got from a text box.
umaYou can change the value of a path using valueForPathChanged of the TreeModel:
tree.getModel().valueForPathChanged(path, str); -
Hi all
I have a small (?) problem changing the background color of a jtree object.
I change the background color to black with setBackground method but the objects in it remains white. I want them to be in black background color, too. and I couldn't find a solution. How can I do that?
thanksI have a small (?) problem changing the background
color of a jtree object.Do you mean the instance of JTree, or one of its nodes?
Just a few guesses - the Swing experts are in the Swing forum:
- maybe the tree background is transparent and you actually see the background of the pane it's on. Did you set the JTree to be opaque?
- did you think about custom renderers? -
Xml in JTree: how to not collpase JTree node, when renaming XML Node.
Hi.
I'm writing some kind of XML editor. I want to view my XML document in JTree and make user able to edit contents of XML. I made my own TreeModel for JTree, which straight accesses XML DOM, produced by Xerces. Using DOM Events, I made good-looking JTree updates without collapsing JTree on inserting or removing XML nodes.
But there is a problem. I need to produce to user some method of renaming nodes. As I know, there is no way to rename node in w3c DOM. So I create new one with new name and copy all children and attributes to it. But in this way I got a new object of XML Node instead of renamed one. And I need to initiate rebuilding (treeStructureChanged event) of JTree structure. Renamed node collapses. If I use treeNodesChanged event (no rebuilding, just changes string view of JTree node), then when I try to operate with renamed node again, exception will be throwed.
Is there some way to rename nodes in my program without collpasing JTree?
I'am new to Java. Maybe there is a method in Xerces DOM implementation to rename nodes without recreating?
Thanks in advance.I assume that "rename" means to change the element name? Anyway your question seems to be "When I add a node to a JTree, how do I make sure it is expanded?" This is completely concerned with Swing, so it might have been better to post it in the Swing forum, but if it were me I would do this:
1. Copy the XML document into a JTree.
2. Allow the user to edit the document. Don't attempt to keep an XML document or DOM synchronized with the contents of the JTree.
3. On request of the user, copy the JTree back to a new XML document.
This way you can "rename" things to the user's heart's content without having the problem you described. -
Multiline text in a jtree node
i'm not able to add the multiline text in a jtree node. i've checked the data in both the cases before adding into the tree and after adding into the tree. itz getting the data in the proper format. but while displaying inside the tree itz taking into the single line.
kindly help me to get the data in a multi line format in the jtree.
thanks in advance.
import java.awt.*;
import java.awt.event.*;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.text.*;
public class DynamicTreeDemo extends JPanel {
public static String transactionName=null;
String p1Name=null;
public static String duration=null;
public static final String NEWLINE = System.getProperty("line.separator");
static String[] arrCorrelatorId={"110","122","129","132","130","136","111","109","131","124","127",null};
static String[] arrParcorrelatorId={"108","110","122","129","122","130","108","108","109","121","121"};
static String[] arrtransactionName={"FINT3","FINT17","FINT20","FINT52","FINT21","FINT18","FINT4","FINT3"," FINT31","FINT19","FINT51"};
public static MutableTreeNode node;
public static DefaultTreeModel model;
public static TreePath path;
public static JTree tree;
static String[] nodeName={"FINT3_108","FINT17_110","FINT20_122","FINT52_129","FINT21_122","FINT18_110","FINT4_108","FINT3_108"," FINT31_109","FINT19_121","FINT51_121",null};
public DynamicTreeDemo(JFrame frame) {
final DynamicTree treePanel = new DynamicTree(transactionName);
populateTree(treePanel);
JTextField name = new JTextField(20);
setLayout(new BorderLayout());
treePanel.setPreferredSize(new Dimension(300, 150));
add(treePanel, BorderLayout.CENTER);
JPanel panel = new JPanel();
panel.setLayout(new GridLayout(10,50));
add(panel, BorderLayout.EAST);
public DefaultMutableTreeNode newObj(String parent){
DefaultMutableTreeNode pname= new DefaultMutableTreeNode(parent);
return pname;
public void populateTree(DynamicTree treePanel)
String p3;
DefaultMutableTreeNode p2,nNode, p1;
int ind=0, i=0,k=0, len=0, m=0;
boolean flag= false;
String desc;
while(nodeName[m]!=null)
p3 = nodeName[m];
ind = p3.indexOf("_");
p3 = p3.substring(0, ind);
desc=NEWLINE +"hi"+NEWLINE+"how r u";
if(arrParcorrelatorId[m].equals(arrParcorrelatorId[0]))
treePanel.addObject(null, p3,desc);
else{
int loopcount=0;
for(int j=0;nodeName[j]!=null;j++)
if(arrParcorrelatorId[m].equals(arrParcorrelatorId[j]))
for(int p=0;nodeName[p]!=null;p++)
if(arrCorrelatorId[p].equals(arrParcorrelatorId[j]))
p1=newObj(arrtransactionName[p]);
System.out.println("parent:"+p1);
System.out.println("child:"+p3);
treePanel.addObject(p1, p3,desc);
break;
break;
m++;
public static void showNodes(String corrId)
transactionName="FINT3";
public void DynamicDisplayNode(String corrId){
JFrame frame = new JFrame("DynamicTreeDemo");
showNodes(corrId);
Container contentPane = frame.getContentPane();
contentPane.setLayout(new GridLayout(1,1));
contentPane.add(new DynamicTreeDemo(frame));
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
frame.pack();
frame.setVisible(true);
public static void main(String[] args)
JFrame frame1=null;
DynamicTreeDemo demo= new DynamicTreeDemo(frame1);
demo.DynamicDisplayNode("108");
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.util.Enumeration;
import java.util.StringTokenizer;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.border.Border;
import javax.swing.border.LineBorder;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.*;
public class DynamicTree extends JPanel {
protected DefaultMutableTreeNode rootNode;
protected DefaultTreeModel treeModel;
protected JTree tree;
protected DefaultTreeCellRenderer linksRenderer;
public static final String NEWLINE = System.getProperty("line.separator");
public DynamicTree(String appName) {
rootNode = new DefaultMutableTreeNode(appName);
treeModel = new DefaultTreeModel(rootNode);
tree = new JTree(treeModel);
tree.setEditable(false);
tree.setShowsRootHandles(true);
tree.setBackground(Color.white);
tree.setCellRenderer(new DefaultTreeCellRenderer()
public Component getTreeCellRendererComponent(JTree pTree,
Object pValue, boolean pIsSelected, boolean pIsExpanded,
boolean pIsLeaf, int pRow, boolean pHasFocus)
DefaultMutableTreeNode node = (DefaultMutableTreeNode)pValue;
JLabel lbl = (JLabel)super.getTreeCellRendererComponent(pTree, pValue, pIsSelected,pIsExpanded, pIsLeaf, pRow, pHasFocus);
lbl.setBorder(new LineBorder(Color.RED,1));
/* Component c = super.getTreeCellRendererComponent(pTree, pValue, pIsSelected,
pIsExpanded, pIsLeaf, pRow, pHasFocus);
if (node.isRoot())
c.setForeground(Color.red);
else if (node.getChildCount() > 0)
c.setForeground(Color.blue);
else if (pIsLeaf)
c.setForeground(Color.black);//new Color(0x736AFF));*/
setBackgroundNonSelectionColor(Color.white);
JPanel p = new JPanel();
p.setBackground(tree.getBackground());
Dimension d = lbl.getPreferredSize();
p.setPreferredSize(new Dimension(d.width, d.height));
p.add(lbl);
tree.setRowHeight(30);
return (p);
JScrollPane scrollPane = new JScrollPane(tree);
setLayout(new GridLayout(1,0));
add(scrollPane);
public void addObject(DefaultMutableTreeNode parent,Object child,String desc)
child=child+desc;
//System.out.println("child"+child);
DefaultMutableTreeNode parent1;
DefaultMutableTreeNode childNode =
new DefaultMutableTreeNode(child);
if (parent == null)
parent = rootNode;
else
String parentName = (String)parent.getUserObject();
String tok;
Enumeration e=null;
e=(Enumeration) rootNode.breadthFirstEnumeration();
int breakloop=0;
parent = rootNode.getLastLeaf();
while (e.hasMoreElements() ) {
if(parent!= null)
//System.out.println("parent.toString():"+parent.toString());
tok=parent.toString();
StringTokenizer st = new StringTokenizer(tok);
parent1=newObj(st.nextToken());
if(parent1.getUserObject().equals(parentName))
breakloop=1;
break;
parent= parent.getPreviousNode();
if(breakloop==0)
parent = rootNode.getLastLeaf();
System.out.println("parent.toString():"+parent.toString());
System.out.println("childNode"+childNode.toString());
parent.add(childNode);
public DefaultMutableTreeNode newObj(String parent){
DefaultMutableTreeNode pname= new DefaultMutableTreeNode(parent);
return pname;
class MyTreeModelListener implements TreeModelListener {
public void treeNodesChanged(TreeModelEvent e) {
DefaultMutableTreeNode node;
node = (DefaultMutableTreeNode)
(e.getTreePath().getLastPathComponent());
try {
int index = e.getChildIndices()[0];
node = (DefaultMutableTreeNode)
(node.getChildAt(index));
} catch (NullPointerException exc) {}
public void treeNodesInserted(TreeModelEvent e) {
public void treeNodesRemoved(TreeModelEvent e) {
public void treeStructureChanged(TreeModelEvent e) {
}Here is a simple example.
import java.awt.BorderLayout;
import javax.swing.*;
import javax.swing.tree.DefaultMutableTreeNode;
public class MultiLineTreeDemo extends JFrame {
private JTree tree;
public static void main( String[] args ) throws Exception {
SwingUtilities.invokeLater( new Runnable() {
public void run() { new MultiLineTreeDemo(); }
public MultiLineTreeDemo() {
super( "MultiLineTreeDemo" );
setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
DefaultMutableTreeNode root = new DefaultMutableTreeNode( "<html>This is<p>the root node.</html>" );
DefaultMutableTreeNode node = new DefaultMutableTreeNode( "<html>This is<p>a child node.<html>" );
root.add( node );
tree = new JTree( root );
setLayout( new BorderLayout() );
JScrollPane scrollPane = new JScrollPane( tree );
add( scrollPane, BorderLayout.CENTER );
setSize( 200, 200 );
setVisible( true );
} -
Parse and display xml doc when click on JTree node?
Ok so here is the code that I have now. You will have to make alot of html files to run the program, but they can be empty for now. What you can do is just put the same exact html file to be displayed in each node element. for example.
DefaultMutableTreeNode n1_node1_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Device", "device.html"));could be changed to
DefaultMutableTreeNode n1_node1_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Device", "status.html"));And just keep adding the status.html page to each one of the nodes.
anyway.
For now when I click on the node, the html file is displayed in the JScrollPane rPane = new JScrollPane(htmlPane); and the htmlPane is a JEditorPane
what I need it to do.
When I click on the JTree node. I would like to go out to an xml file, parse the information in it, and display it to the pane.
I will need to later, be able to add, edit, or delete information on the xml through the pane later.
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.JTree;
import javax.swing.JPanel;
import javax.accessibility.*;
import javax.swing.UIManager;
import javax.swing.JComponent;
import javax.swing.JEditorPane;
import javax.swing.tree.TreeSelectionModel;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.ImageIcon;
import java.net.URL;
import java.io.IOException;
import java.awt.Dimension;
* @author orozcom
public class Example extends JFrame implements TreeSelectionListener
private JEditorPane htmlPane;
private URL helpURL;
private static boolean DEBUG = false;
private JTree tree;
public Example()
super("Example");
setSize(1200,900);
setDefaultCloseOperation(EXIT_ON_CLOSE);
JMenuBar jmb = new JMenuBar();
JMenu fileMenu = new JMenu("File");
JMenuItem openItem = new JMenuItem("Open");
JMenuItem saveItem = new JMenuItem("Save");
JMenuItem exitItem = new JMenuItem("Exit");
exitItem.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent ae)
System.exit(0);
fileMenu.add(openItem);
fileMenu.add(saveItem);
fileMenu.add(new JSeparator());
fileMenu.add(exitItem);
jmb.add(fileMenu);
setJMenuBar(jmb);
// **************** start JTree ******************//
JPanel lPane =new JPanel();
lPane.setLayout(new BorderLayout());
DefaultMutableTreeNode top = new DefaultMutableTreeNode(new ModuleInfo("Devices","splashScreen.html"));
DefaultMutableTreeNode branch1 =
new DefaultMutableTreeNode(new ModuleInfo("Module 1", "module1.html"));
DefaultMutableTreeNode branch2 =
new DefaultMutableTreeNode(new ModuleInfo("Module 2", "module2.html"));
//DefaultMutableTreeNode branch3 =
//new DefaultMutableTreeNode(new ModuleInfo("Module 3", "module3.html"));
//adding to the topmost node
top.add(branch1);
top.add(branch2);
//top.add(branch3);
* BRANCH 1 *
//adding to the First branch
DefaultMutableTreeNode node1_b1
=new DefaultMutableTreeNode(new ModuleInfo("Status", "status.html"));
//branch1.add(node1_b1);
DefaultMutableTreeNode n1_node1_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Device", "device.html"));
DefaultMutableTreeNode n2_node1_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Network", "network.html"));
DefaultMutableTreeNode n3_node1_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Chassis", "chassis.html"));
DefaultMutableTreeNode n4_node1_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Resources", "resources.html"));
node1_b1.add(n1_node1_b1);
node1_b1.add(n2_node1_b1);
node1_b1.add(n3_node1_b1);
node1_b1.add(n4_node1_b1);
DefaultMutableTreeNode node2_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Project Editor", "projedit.html"));
DefaultMutableTreeNode node3_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Project Manager", "projmngt.html"));
DefaultMutableTreeNode node4_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Administration", "administration.html"));
DefaultMutableTreeNode n1_node4_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Device", "device.html"));
DefaultMutableTreeNode n2_node4_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Network", "network.html"));
DefaultMutableTreeNode n3_node4_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Users", "users.html"));
node4_b1.add(n1_node4_b1);
node4_b1.add(n2_node4_b1);
node4_b1.add(n3_node4_b1);
DefaultMutableTreeNode node5_b1 =
new DefaultMutableTreeNode(new ModuleInfo("Logging", "logging.html"));
branch1.add(node1_b1);
branch1.add(node2_b1);
branch1.add(node3_b1);
branch1.add(node4_b1);
branch1.add(node5_b1);
* BRANCH 2 *
//adding to the Second branch
DefaultMutableTreeNode node1_b2 =
new DefaultMutableTreeNode(new ModuleInfo("Status", "status.html"));
DefaultMutableTreeNode n1_node1_b2 =
new DefaultMutableTreeNode(new ModuleInfo("Device", "device.html"));
DefaultMutableTreeNode n2_node1_b2 =
new DefaultMutableTreeNode(new ModuleInfo("Network", "network.html"));
DefaultMutableTreeNode n3_node1_b2 =
new DefaultMutableTreeNode(new ModuleInfo("Chassis", "chassis.html"));
DefaultMutableTreeNode n4_node1_b2 =
new DefaultMutableTreeNode(new ModuleInfo("Resources", "resources.html"));
node1_b2.add(n1_node1_b2);
node1_b2.add(n2_node1_b2);
node1_b2.add(n3_node1_b2);
node1_b2.add(n4_node1_b2);
DefaultMutableTreeNode node2_b2=
new DefaultMutableTreeNode(new ModuleInfo("Project Editor", "projedit.html"));
DefaultMutableTreeNode node3_b2=
new DefaultMutableTreeNode(new ModuleInfo("Project Manager", "projmngt.html"));
DefaultMutableTreeNode node4_b2=
new DefaultMutableTreeNode(new ModuleInfo("Administration", "administration.html"));
DefaultMutableTreeNode n1_node4_b2=
new DefaultMutableTreeNode(new ModuleInfo("Device", "device.html"));
DefaultMutableTreeNode n2_node4_b2=
new DefaultMutableTreeNode(new ModuleInfo("Network", "network.html"));
DefaultMutableTreeNode n3_node4_b2=
new DefaultMutableTreeNode(new ModuleInfo("Users", "users.html"));
node4_b2.add(n1_node4_b2);
node4_b2.add(n2_node4_b2);
node4_b2.add(n3_node4_b2);
DefaultMutableTreeNode node5_b2=
new DefaultMutableTreeNode(new ModuleInfo("Logging", "logging.html"));
branch2.add(node1_b2);
branch2.add(node2_b2);
branch2.add(node3_b2);
branch2.add(node4_b2);
branch2.add(node5_b2);
* BRANCH 3 *
//adding to the Third branch
DefaultMutableTreeNode node1_b3=new DefaultMutableTreeNode("Status");
DefaultMutableTreeNode n1_node1_b3=new DefaultMutableTreeNode("Device");
DefaultMutableTreeNode n2_node1_b3=new DefaultMutableTreeNode("Network");
DefaultMutableTreeNode n3_node1_b3=new DefaultMutableTreeNode("Chassis");
DefaultMutableTreeNode n4_node1_b3=new DefaultMutableTreeNode("Resources");
node1_b3.add(n1_node1_b3);
node1_b3.add(n2_node1_b3);
node1_b3.add(n3_node1_b3);
node1_b3.add(n4_node1_b3);
DefaultMutableTreeNode node2_b3=new DefaultMutableTreeNode("Project Editor");
DefaultMutableTreeNode node3_b3=new DefaultMutableTreeNode("Project Manager");
DefaultMutableTreeNode node4_b3=new DefaultMutableTreeNode("Administration");
DefaultMutableTreeNode n1_node4_b3=new DefaultMutableTreeNode("Device");
DefaultMutableTreeNode n2_node4_b3=new DefaultMutableTreeNode("Network");
DefaultMutableTreeNode n3_node4_b3=new DefaultMutableTreeNode("Users");
node4_b3.add(n1_node4_b3);
node4_b3.add(n2_node4_b3);
node4_b3.add(n3_node4_b3);
DefaultMutableTreeNode node5_b3=new DefaultMutableTreeNode("Logging");
branch3.add(node1_b3);
branch3.add(node2_b3);
branch3.add(node3_b3);
branch3.add(node4_b3);
branch3.add(node5_b3);
tree=new JTree(top,true);
//tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
tree.getSelectionModel().setSelectionMode(TreeSelectionModel.CONTIGUOUS_TREE_SELECTION);
//Set the icon for leaf nodes.
ImageIcon deviceIcon = createImageIcon("/device.gif");
if (deviceIcon != null)
DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();
renderer.setLeafIcon(deviceIcon);
tree.setCellRenderer(renderer);
else
System.err.println("Leaf icon missing; using default.");
//Listen for when the selection changes.
tree.addTreeSelectionListener(this);
//Create the scroll pane and add the tree to it.
//JScrollPane treeView = new JScrollPane(tree);
tree.setToolTipText(" and ");
lPane.add(tree);
getContentPane().add(lPane);
// **************** end JTree ******************//
htmlPane = new JEditorPane();
htmlPane.setEditable(false);
initHelp();
JScrollPane rPane = new JScrollPane(htmlPane);
JSplitPane jsp = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, lPane, rPane);
jsp.setDividerLocation(180);
getContentPane().add(jsp, BorderLayout.CENTER);
JPanel bPane = new JPanel();
JButton okButton = new JButton("Ok");
JButton applyButton = new JButton("Apply");
JButton clearButton = new JButton("Clear");
bPane.add(okButton);
bPane.add(applyButton);
bPane.add(clearButton);
getContentPane().add(bPane, BorderLayout.SOUTH);
setVisible(true);
/** Required by TreeSelectionListener interface. */
public void valueChanged(TreeSelectionEvent e)
DefaultMutableTreeNode node = (DefaultMutableTreeNode)
tree.getLastSelectedPathComponent();
if (node == null) return;
Object nodeInfo = node.getUserObject();
if (node.isLeaf())
ModuleInfo module = (ModuleInfo)nodeInfo;
displayURL(module.moduleURL);
if (DEBUG)
System.out.print(module.moduleURL + ": \n ");
else
displayURL(helpURL);
if (DEBUG)
System.out.println(nodeInfo.toString());
private class ModuleInfo
public String deviceName;
public URL moduleURL;
public ModuleInfo(String device, String filename)
deviceName = device;
moduleURL = (URL)Example.class.getResource("/" + filename);
if (moduleURL == null)
System.err.println("Couldn't find file: "
+ filename);
public String toString()
return deviceName;
private void initHelp()
String s = "YFDemoHelp.html";
helpURL = Example.class.getResource("/" + s);
if (helpURL == null)
System.err.println("Couldn't open help file: " + s);
else if (DEBUG)
System.out.println("Help URL is " + helpURL);
displayURL(helpURL);
private void displayURL(URL url)
try
if (url != null)
htmlPane.setPage(url);
else
{ //null url
htmlPane.setText("File Not Found");
if (DEBUG)
System.out.println("Attempted to display a null URL.");
catch (IOException e)
System.err.println("Attempted to read a bad URL: " + url);
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path)
java.net.URL imgURL = Example.class.getResource(path);
if (imgURL != null)
return new ImageIcon(imgURL);
else
System.err.println("Couldn't find file: " + path);
return null;
public static void main(String args[])
new Example();
//new AssistiveExample();
}Thanks orozcomyes i can at the time of MIRO u can see both
go in SU01 for and user
in Parameters enter IVFIDISPLAY in Parameter ID and X in Paramater Value
thus for that user u will be able to c Invoice number and accounting number after saving MIRo
u will get message like
Invoice document 5105608893 was posted ( Accountng Documnt: 5100000000 )
hope this helps -
Change Chart background color during runtime
I want to change the background color of my chart during runtime.
I can set and read-out the color with a property node but the apperance on the frontpanel is not changing.
After stopping the VI the chart suddenly gets updated.
Please check my VI attached.
Do someone knows a workaround?
Attachments:
chart.vi 9 KBHello Robert,
another option would be to place (for example) a vertical smooth box behind the chart and change the color of it.
See my attachment.
Best regards
Attachments:
Change chart background color.vi 12 KB -
How can I programmatically change the fill color Settings of the Cwslide ActiveX Controls
In design mode (Visual Studio 6.0),I want to programmatically change the fill color in properties of cwslide ActiveX Controls.what's the command?
Attachments:
cwslide.JPG 11 KBFirst, if you want to start getting beyond the basics with DAQ, you are going to have to stop using the DAQ assistant and do it with lower level DAQmx VI's. There are hundreds of examples in the example finder. You can even right click on the DAQ assistant and select open front panel. That will create a subVI that you can open and see what is going on behind the scenes. Do it. I think you'll find the DAQ task is being recreated on each (though I'm not 100% of how the settings are established or maintained in each section of that subVI).
The second problem is you have a bit of a race condition on iteration 0. Those two DAQ property nodes are running at the same time. So when you read the AI.Max, it may be happening before or after the AI.Max is set in your case structure.
Third, make sure you wire up your error wires. -
I can't seem to figure out how to change certain node icons in a JTree due to a 3 letter string. For example 2 nodes one saying "Intro" the other say "Edit - SEC" - the one with SEC has a different icon to "Intro"
MyRenderer class, here the code which is used to check the string of the node......
if(leaf && isSecuredFile(value)) {
setLeafIcon(leafSecuredIcon);
setToolTipText("This file is Secured Access Only");
else {
setToolTipText(null);
return this;
protected boolean isSecuredFile(Object value) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode)value;
NodeRecord nodeInfo = (NodeRecord)(node.getUserObject());
String nodeTitle = nodeInfo.NodeRecord;
if(nodeTitle.indexOf("SEC") >= 0) {
return true;
return false;
}// MyRenderer class
I tried the above piece of code, and it compiles with no errors but when I try to run the applet it comes up not initialised with the following....
java.lang.NoClassDefFoundError: MyRenderer
at firstPanel.<init>(firstPanel.java:99)
at JNavigator.jInit(JNavigator.java:55)
at JNavigator.init(JNavigator.java:40)
at sun.applet.AppletPanel.run(AppletPanel.java:344)
at java.lang.Thread.run(Thread.java:484)
However if I take out this code it works fine but I need to be able to assign different icons depending on the node title string. Therefore I need help.here's the whole class, if thats any help...
public class MyRenderer extends DefaultTreeCellRenderer {
ImageIcon leafIcon;
ImageIcon leafSecuredIcon;
public MyRenderer() {
leafIcon = new ImageIcon("Leaf.gif");
leafSecuredIcon = new ImageIcon("LeafSecured.gif");
public Component getTreeCellRendererComponent(JTree tree, Object val, boolean sel, boolean expand, boolean leaf, int row, boolean hasFocus) {
super.getTreeCellRendererComponent(tree, val, sel, expand, leaf, row, hasFocus);
// sets Icons
setLeafIcon(leafIcon);
setClosedIcon(new ImageIcon("Folder95C.gif"));
setOpenIcon(new ImageIcon("Folder95O.gif"));
// set Expansion icons to + -
ComponentUI treeUI = tree.getUI();
if(treeUI instanceof BasicTreeUI) {
((BasicTreeUI)treeUI).setExpandedIcon(new ImageIcon("minus.gif"));
((BasicTreeUI)treeUI).setCollapsedIcon(new ImageIcon("plus.gif"));
// decides who icon to use
if(leaf && isSecuredFile(value)) {
setLeafIcon(leafSecuredIcon);
setToolTipText("This file is Secured Access Only");
else {
setToolTipText(null);
return this;
protected boolean isSecuredFile(Object value) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode)value;
NodeRecord nodeInfo = (NodeRecord)(node.getUserObject());
String nodeTitle = nodeInfo.NodeRecord;
if(nodeTitle.indexOf("DOM") >= 0) {
return true;
return false;
}
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