Extend UI components

Am I correct that it not currently possible to extend existing UI components and add new properties/behavior. Are there any plans to support this in the <b>near</b> future. I mean, the whole concept of components is a bit useless if you're completely tied to the ones provided by SAP.

Hi ,
Yes its true !
Abt extending UI components.. is there any development framework which supports UI component extension ? I doubt that part !
Not exactly an analogy.. but can u extend say , a html dropdown to do something else other than the standard ? (like add a label in front of dropdown)
If you are talking abt taglibs..
Its probably to bring a standard then going back to a mix of HTML tags /HTMLB and lots other...
Regards
Bharathwaj..

Similar Messages

Extended Swing Components into Custom Component Palette

Hi
As part of my swing application I have a number of GUI components created as an extension of a normal swing component.
As example is below.
package com.myapp
import java.awt.Font;
import javax.swing.JLabel;
public class MLabel extends JLabel
public MLabel()
this.setFont(new Font("Tohoma",0,10));
this.setFocusable(false);
As you can see this simple sets some default attributes. How can I add this custom component into a palette for each access when using the GUI builder.
I've created a new page in the palette, but am unable to add my components.
Thanks for your help.
Nick.

Hi,
- create a JAR file with your component(s) in it
- Create a custom Library in JDeveloper (Tools--> Managed Libraries)
- Select the JAR file
- On the component palette (the page you created), select the properties option of the context menu
- Your library now shows up in the drop down list to choose the component to add
Frank

Extending UIX components

Hi everybody,
I've started to investigate the UIX extension possibilites, and I have some doubts.
Here goes some questions:
1) How can I use the new defined components at design time? (I haven't found it in the docs)
2) The documentation talks about the possibility of extend components developed by someone else. And there is an example of adding a new property to an existing component, but the fact is that the new behavior doesn't affect rendering. It's possible to modify the renderization of an existing component in an easy way? For instance, add a new property to a MessageTextInput which lets us decide where goes the promp (left or right of the text box). It's not a great change, but it's needed to modify the renderization.
Thank you,
Carles Biosca

You should take a look into templates. Templates provide an easy way to customize components (to some extent) and to combine existing components into new ones. So if it can be done with a template then that is probably the way you should go.
In your case, you could create a new template consisting of a messagePrompt and a textInput in a layout. As base type you should use the textInput.
The position of the prompt you could then control based on an additional template attribute.
The templating stuff should also be in the "Extending UIX" chapter.
Sascha

Extending Swing Components

I would like to create my own Swing components that I wish to use in my Java GUI programs. I would like to create my own lightweight components and also to create things such as:
Round buttons
Sliders
etc
I also need to know how to create metallic skins for my Swing application.
Please can someone give me any simple examples of how to create custom components and also how to create skins of interfaces or give me some URLs that teach you.
Thanks in advance
Riz

I think your best bet is to look at the source of the LookAndFeel's provided with the swing download, mac/windows/motif/metal/basic and figure it all out. I don't know of any detailed sites to help make look and feels.

How to Extend ATG10 Multisite's SiteContext or SiteSession components.

Can anyone let me know if you have come across extending Multisite's SiteContext or SiteSession components? We want to extend these components to hold custom values but i do not find anything related in the documentation. Thanks in Advance.
-PR

SiteSession isn't a Nucleus component. The component that instantiates SiteSessions does not provide a way for you to specify an alternate class. SiteContext and SiteSession both have an attributes property that is a Set of name/value pairs. Names are Strings and values are Objects. Once your code gets access to a SiteContext or SiteSession, you can call setAttribute and getAttribute to manipulate your custom properties. Both classes also have a getAttributeNames method you can use to iterate through whatever attributes you've set.

Flex Data Services does not see remote methods in extended ColdFusion component.

I have created a remote service base component as a AModelService.cfc file. I extend that file to make my ModelService.cfc. When I configure the ColdFusion data service and point to ModelService.cfc and click next, I don't see any remote methods (there are none explicitly defined in the component) in the Service Operations window.
If I go back and point to AModelServide.cfc, the parent component, and hit next, I see all the remote methods that are defined in the parent component. So, either I am doing something wrong, or Data Services does not look at methods up the cfc prototype chain, which from an OOP standpoint means that instead of say creating one restful base class and being nice and DRY you can't. I.e. not OOP for data services. Is this a bug, or what?
Anybody get data services to work with extended service components?
Mark

Thanks for the reply. Yes, I did compile all the Java and it
works OK with a simple Java program. It just will not work in a
Flex application.
The java classes are:
RRA:
package blah.myPackage;
import java.util.List;
import java.util.Collection;
import flex.data.DataSyncException;
import flex.data.assemblers.AbstractAssembler;
class RRA extends AbstractAssembler
public Collection fill( List fillParameters )
RRS service = new RRS();
return service.getSome();
RRS:
package blah.myPackage;
import java.util.ArrayList;
import java.util.List;
import java.sql.*;
import flex.EORS.*;
class RRS
public List getSome()
ArrayList list = new ArrayList();
String str = "bob";
RR rr = new RR(str);
list.add(rr);
return list;
RR:
package blah.myPackage;
class RR
private String name;
public RR() { }
public RR(String name)
this.name = name;
public String getName()
return this.name;
public void setName(String name)
this.name = name;
I started with something that retrieved data from a database
but watered it down just to try and get some kind of communication
between Flex and Java.

Configuring Swing components from a database

Hi All
I'd like to be able to configure Swing components with information from a database e.g. text, color, editability etc. One approach I'm considering is extending existing components such a JTextField and adding a configure() method which takes as a parameter the primary key of the database record containing the config info.
Has anyone comes across alternative design patterns for solving this?
Regards
Terry Child

that is what I would do

How to extend af:chooseDate component

I need to build a custom adf component which will be in extended form of af:chooseDate component.
How to extend adf components ?
any documentation or links will help me out ?
I need to enhance some features for the af:chooseDate component. How to do that ?
Is there any good links which will help me to develop custom adf components ?
Regards,
Hoque

You can create a custom declarative component that uses af:chooseDate component and expose additional properties/attributes.
For more details, read the following forum post:
how to "extend" an ADF faces component
Thanks,
Navaneeth

Where to get info on foundation components like "foundation/components/userinfo"

Where can I obtain detailed APIs for the foundation components?
It's hard to find in-depth information on CQ5's components. E.g. in the Geometrixx example, this component is referenced in the header.jsp, but I can't find any reference to it online:
<cq:include path="userinfo" resourceType="foundation/components/userinfo"/>
There are these, but the usage details are incomplete:
http://dev.day.com/docs/en/cq/current/developing/components.html#Default%20Components%20wi thin%20CQ%20WCM
http://dev.day.com/docs/en/cq/5-3/wcm/default_components.html
I also found these docs but they're more advanced, as I don't want to write the Java to extend these components yet, I just want the information on using the components as tags and includes.
http://dev.day.com/docs/en/cq/current/widgets-api/index.html
http://dev.day.com/docs/en/cq/current/javadoc/index.html
Thanks for any pointers you can provide.

The component foundation/components/userinfo shows information about the currently logged in user (In publish mode display name of non anonymous users & in author mode link to cc) . In order to find the information missing in docs go to respective components & open the component jsp file. Ex:- For your case it would be in /libs/foundation/components/userinfo/userinfo.jsp
Please refer [0] on how to use xtypes.
I have placed a documentation request to update the missing component information. For any additional details could you please file a daycare so that we can help & track it down.
[0] http://dev.day.com/docs/en/cq/current/getting_started/first_steps_for_developers.html

Trying to make a disc.img from an iMovie project get the mssage that some of the audio clips are not available. The clips still show as green bars in the project but do not play.

I successfully made a disc.img and then burned a DVD of the project but found an error in a title. Went back to the project, corrected the error, and tried to create a new disc.img but got the message that some of the audio tracks were unavailable. They still show as green bars in the project but do not play. Tried deleting and reinstalling them with no success. They do play in iTunes and in the iMovie editing pane
Thank you

inspired2apathy wrote:
... The goal is a ScrollPane that automatically wraps the text inside it. I've just about got it, but I have one thing that's not working. If I just put the JTextArea{s} in as the Editor, then you lose the any text that doesn't fit inside whatever the initial size was. Instead, I put the JTextAreas inside a JScrollPane which works fine, except that I still have to determine the size of the JScrollPane in advance. I would like to make each Editor/JScrollPane start out with just a single line of text and expand until it reaches a certain small number of lines.
... What am I missing?THE BASICS. See if this isn't what you are trying to do.
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class Test
public static void main(String[] args) {
    JTextArea ta = new JTextArea();
    ta.setLineWrap(true);
    ta.setWrapStyleWord(true);
    JScrollPane sp = new JScrollPane(ta);
    JFrame f = new JFrame();
    f.getContentPane().add(sp, "Center");
    f.setBounds(0, 0, 400, 300);
    f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
    f.setVisible(true);
}OP, your code was too long and complicated for me to compile and run. However, aren't you forgetting the two simple methods <tt>JTextArea.setLineWrap()</tt> and <tt>JTextArea.setWrapStyleWord()</tt>? Furthermore, I absolutely see no need for you to extend SWING components for demonstration this simple -- that is, if I understand your problem correctly.

How to validate multiple controls using a single Validator?

I am trying to do an HourValidator because Flex doesn't have
this, so i am extending from the Validator class. I read in the
Creating and extending Flex components document the
following:
"A validator can validate more than one field at a time. For
example, you could create a custom
validator called NameValidator to validate three input
controls that represent a person’s first,
middle, and last names.
To create a validator that examines multiple fields, you can
either define properties on the
validator that let you specify the multiple input fields, as
does the Flex DateValidator class
class, or you can require that the single item passed to the
validator includes all of the fields to
be validated."
So according to the document i need to define properties so i
defined 4 properties:
startHourSource: the input control containing the starting
hour
startHourProperty: the control's property (in this case the
text property)
endHourSource: the input control containing the end hour
endHourProperty: the control's property (in this case the
text property)
The thing is that when i call the doValidation of the
superclass (to validate the required property) it does return a
validation error but it doesn't mark the input control with the red
frame that indicates there's a validation error. I assume that is
because the
source and
property properties of the validator are null but that's ok
because i am not using them, instead i am using the 4 properites
mentioned above.
So what do i need to do or override so the red frame appears
in the input controls??

Yeah i already know that, but when you use the doValidation
method, which does the requiredField validation, by default marks
the input control with the red frame, so that's why i am trying to
do, doing it so it will do it by default.
For example, try this:
<mx:TextInput id="test"/>
<mx:Validator id="validateTest" source="{test}"
property="text" required="true" requiredFieldError="The field is
empty"/>
If you do
validateTest.validate( ) and the textinput is empty, it will
mark it with the red frame by default, that's the kind of behave i
want for my HourValidator, but if it is not possible then the
solution you suggested would be the only one to do this.

Trying to make a WrappingComboBox

Inspired by a fairly straightforward WrappingList, I thought I'd try to make a Wrapping JScrollPane. The goal is a ScrollPane that automatically wraps the text inside it. I've just about got it, but I have one thing that's not working. If I just put the JTextArea{s} in as the Editor, then you lose the any text that doesn't fit inside whatever the initial size was. Instead, I put the JTextAreas inside a JScrollPane which works fine, except that I still have to determine the size of the JScrollPane in advance. I would like to make each Editor/JScrollPane start out with just a single line of text and expand until it reaches a certain small number of lines.
Here is my attempt at a WrappingComboBox
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Insets;
import java.awt.LayoutManager;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.awt.event.InputMethodEvent;
import java.awt.event.InputMethodListener;
import java.util.Vector;
import javax.swing.BoxLayout;
import javax.swing.ComboBoxEditor;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JViewport;
import javax.swing.ListCellRenderer;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingUtilities;
import javax.swing.event.EventListenerList;
import javax.swing.plaf.basic.BasicComboBoxUI;
import javax.swing.plaf.basic.BasicComboPopup;
import javax.swing.plaf.basic.ComboPopup;
import javax.swing.text.View;
import debibdup.ScrollablePanel.ScrollableSizeHint;
* @author jfolson
public class WrappingComboBox extends JComboBox {
     WrappingComboBox() {
          super();
          this.setUI(new WrappingComboBoxUI());
     WrappingComboBox(Vector<?> items) {
          super(items);
          this.setUI(new WrappingComboBoxUI());
     public static class WrappingComboBoxUI extends BasicComboBoxUI {
          WrappingHelper wrappingHelper;
          public WrappingComboBoxUI() {
               super();
          public WrappingHelper getWrappingHelper() {
               if (wrappingHelper == null)
                    wrappingHelper = new WrappingHelper();
               return wrappingHelper;
          /* Since my Editor, Renderer and Popup are not UIResources, I have to overload these methods
           * or else installUI would call BasicComboBoxUI.createXXX anyway and replace mine
          @Override
          protected ComboBoxEditor createEditor() {
               return new WrappingComboBoxEditor();
          /* See note for createEditor()
          @Override
          protected ListCellRenderer createRenderer() {
               return new WrappingList.WrappingListCellRenderer();
          /* See note for createEditor()
          @Override
          protected ComboPopup createPopup() {
               return new BasicComboPopup(comboBox) {
                    @Override
                    protected JList createList() {
                         // use the WrappingList for the popup to make it update its
                         // sizes
                         return new WrappingList(comboBox.getModel());
                         // BasicComboPopup overrides default, apparently fixes some
                         // bug but I can't use it because BasicGraphicsUtils
                         // functions are private
                         /*return new JList(comboBox.getModel()) {
                              @Override
                              public void processMouseEvent(MouseEvent e) {
                                   if (BasicGraphicsUtils.isMenuShortcutKeyDown(e)) {
                                        // Fix for 4234053. Filter out the Control Key
                                        // from the list.
                                        // ie., don't allow CTRL key deselection.
                                        Toolkit toolkit = Toolkit.getDefaultToolkit();
                                        e = new MouseEvent((Component) e.getSource(), e
                                                  .getID(), e.getWhen(), e.getModifiers()
                                                  ^ toolkit.getMenuShortcutKeyMask(), e
                                                  .getX(), e.getY(), e.getXOnScreen(), e
                                                  .getYOnScreen(), e.getClickCount(), e
                                                  .isPopupTrigger(), MouseEvent.NOBUTTON);
                                   super.processMouseEvent(e);
          /*Have to overrige getMinimumSize, rectangleForCurrentValue and layoutContainer in the Helper class
           * to make a smaller (reasonable) sized popup button, otherwise, for multi-line combobox you get
           * ridiculously large buttons.
          @Override
          public Dimension getMinimumSize(JComponent c) {
               if (!isMinimumSizeDirty) {
                    return new Dimension(cachedMinimumSize);
               Dimension size = getDisplaySize();
               Insets insets = getInsets();
               // calculate the width and height of the button
               int buttonHeight = size.height;
               if (buttonHeight > arrowButton.getPreferredSize().width)
                    buttonHeight = arrowButton.getPreferredSize().width;
               int buttonWidth = arrowButton.getPreferredSize().width;
               // adjust the size based on the button width
               size.height += insets.top + insets.bottom;
               size.width += insets.left + insets.right + buttonWidth;
               cachedMinimumSize.setSize(size.width, size.height);
               isMinimumSizeDirty = false;
               return new Dimension(size);
           * Returns the area that is reserved for drawing the currently selected
           * item.
          @Override
          protected Rectangle rectangleForCurrentValue() {
               int width = comboBox.getWidth();
               int height = comboBox.getHeight();
               Insets insets = getInsets();
               int buttonSize = height - (insets.top + insets.bottom);
               if (arrowButton != null) {
                    buttonSize = arrowButton.getWidth();
               if (true) {// BasicGraphicsUtils.isLeftToRight(comboBox)) { // this
                    // method is not visible
                    return new Rectangle(insets.left, insets.top, width
                              - (insets.left + insets.right + buttonSize), height
                              - (insets.top + insets.bottom));
               } else { // if I could tell, put the box on the other side for right
                    // to left checkboxes
                    return new Rectangle(insets.left + buttonSize, insets.top,
                              width - (insets.left + insets.right + buttonSize),
                              height - (insets.top + insets.bottom));
          @Override
          protected LayoutManager createLayoutManager() {
               return getWrappingHelper();
          private class WrappingHelper implements LayoutManager {
               // LayoutManager
               /* Need to override layoutContainer to put in a smaller popup button
               public void addLayoutComponent(String name, Component comp) {} // Can't
               // do
               // this
               public void removeLayoutComponent(Component comp) {}
               public Dimension preferredLayoutSize(Container parent) {
                    return parent.getPreferredSize();
               public Dimension minimumLayoutSize(Container parent) {
                    return parent.getMinimumSize();
               public void layoutContainer(Container parent) {
                    JComboBox cb = (JComboBox) parent;
                    int width = cb.getWidth();
                    int height = cb.getHeight();
                    Insets insets = getInsets();
                    int buttonHeight = height - (insets.top + insets.bottom);
                    int buttonWidth = buttonHeight;
                    if (arrowButton != null) {
                         if (buttonHeight > arrowButton.getPreferredSize().width)
                              buttonHeight = arrowButton.getPreferredSize().width;
                         Insets arrowInsets = arrowButton.getInsets();
                         buttonWidth = arrowButton.getPreferredSize().width
                                   + arrowInsets.left + arrowInsets.right;
                    Rectangle cvb;
                    if (arrowButton != null) {
                         if (true) {// BasicGraphicsUtils.isLeftToRight(cb)) { //
                              // this method is not visible
                              arrowButton.setBounds(width
                                        - (insets.right + buttonWidth), insets.top,
                                        buttonWidth, buttonHeight);
                         } else { // if I could tell, put the box on the other side
                              // for right to left checkboxes
                              arrowButton.setBounds(insets.left, insets.top,
                                        buttonWidth, buttonHeight);
                    if (editor != null) {
                         cvb = rectangleForCurrentValue();
                         editor.setBounds(cvb);
     public static class WrappingComboBoxEditor extends JScrollPane implements
               ComboBoxEditor, ComponentListener {
          EventListenerList listenerList = new EventListenerList();
          LineAwareTextArea text;
          public WrappingComboBoxEditor() {
               super();
               this.text = new LineAwareTextArea();
               this.setViewportView(text);
               setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
               setPreferredSize(new Dimension(100, 30));
               this.setItem("");
               text.setLineWrap(true);
               text.setWrapStyleWord(false);
               text.setEditable(true);
               text.addInputMethodListener(new InputMethodListener() {
                    @Override
                    public void caretPositionChanged(InputMethodEvent arg0) {}
                    @Override
                    public void inputMethodTextChanged(InputMethodEvent arg0) {
                         Object[] listeners = WrappingComboBoxEditor.this.listenerList
                                   .getListenerList();
                         // Process the listeners last to first, notifying
                         // those that are interested in this event
                         ActionEvent actionEvent = null;
                         for (int i = listeners.length - 2; i >= 0; i -= 2) {
                              if (listeners[i] == ActionListener.class) {
                                   if (actionEvent == null)
                                        actionEvent = new ActionEvent(this,
                                                  ActionEvent.ACTION_PERFORMED, null);
                                   ((ActionListener) listeners[i + 1])
                                             .actionPerformed(actionEvent);
               text.addComponentListener(this);
          @Override
          public void addActionListener(ActionListener l) {
               listenerList.add(ActionListener.class, l);
          @Override
          public Component getEditorComponent() {
               return this;
          @Override
          public Object getItem() {
               return text.getText();
          @Override
          public void removeActionListener(ActionListener l) {
               listenerList.remove(ActionListener.class, l);
          @Override
          public void setItem(Object anObject) {
               if (anObject == null)
                    text.setText("");
               else
                    text.setText(String.valueOf(anObject));
          @Override
          public void selectAll() {
               text.selectAll();
          public void componentHidden(ComponentEvent arg0) {}
          public void componentMoved(ComponentEvent arg0) {}
          @Override
          public void componentResized(ComponentEvent arg0) {
               JViewport view = this.getViewport();
               Dimension viewDim = view.getExtentSize();
               Insets insets = view.getInsets();
               System.out.println("actual view height: " + viewDim.height);
               Dimension wantDim = text.getPreferredScrollableViewportSize();
               if (wantDim.height > viewDim.height) {
                    viewDim.height = wantDim.height + insets.top + insets.bottom;
                    view.setPreferredSize(viewDim);
                    view.revalidate();
                    ((JComponent) this.getParent()).revalidate();
                    //SwingUtilities.windowForComponent(this).pack(); //even this doesn't work
          @Override
          public void componentShown(ComponentEvent arg0) {}
      * Only really need to expose rowHeight but might as well determine the
      * correct size it wants its viewport
      * @author jfolson
     public static class LineAwareTextArea extends JTextArea {
          private int maxVisibleRows = 3;
          public LineAwareTextArea() {
               super();
          public LineAwareTextArea(String text) {
               this();
               setText(text);
          @Override
          public Dimension getPreferredScrollableViewportSize() {
               Dimension d = this.getPreferredSize();
               float hspan = getWidth();
               View view = (getUI()).getRootView(this);
               view.setSize(hspan, Float.MAX_VALUE);
               float vspan = view.getPreferredSpan(View.Y_AXIS);
               Insets insets = getInsets();
               int rows = (d.height / this.getRowHeight());
               if (rows > maxVisibleRows)
                    rows = maxVisibleRows;
               d.height = rows * getRowHeight() + insets.top + insets.bottom;
               System.out.println("prefer view height: " + d.height + " (" + rows
                         + " line(s))"); // this is here just so I can see that it's getting the right number of desired lines.
               return d;
          public void setMaxVisibleRows(int rows) {
               this.maxVisibleRows = rows;
          public int getMaxVisibleRows() {
               return this.maxVisibleRows;
     public static class ComboTest extends JFrame {
          public ComboTest() {
               setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
               init();
               pack();
               show();
          private void init() {
               ScrollablePanel mainPanel = new ScrollablePanel();
               mainPanel.setScrollableWidth(ScrollableSizeHint.FIT);
               mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
               ScrollablePanel fieldPanel = new ScrollablePanel();
               fieldPanel.setLayout(new BoxLayout(fieldPanel, BoxLayout.X_AXIS));
               fieldPanel.setScrollableWidth(ScrollableSizeHint.FIT);
               Vector<String> items = new Vector<String>();
               items.add("Item One");
               JComboBox list = new WrappingComboBox(items);
               list.setEditable(true);
               JLabel fieldLabel = new JLabel("Label: ");
               fieldLabel.setAlignmentY(TOP_ALIGNMENT);
               list.setAlignmentY(TOP_ALIGNMENT);
               fieldPanel.add(fieldLabel);
               fieldPanel.add(list);
               mainPanel.add(fieldPanel);
               fieldPanel = new ScrollablePanel();
               fieldPanel.setLayout(new BoxLayout(fieldPanel, BoxLayout.X_AXIS));
               fieldPanel.setScrollableWidth(ScrollableSizeHint.FIT);
               items
                         .add("Item Two content content content content Item Two content content content content Item Two content content content content Item Two content content content content");
               list = new WrappingComboBox(items);
               list.setEditable(true);
               fieldLabel = new JLabel("Label: ");
               fieldLabel.setAlignmentY(TOP_ALIGNMENT);
               list.setAlignmentY(TOP_ALIGNMENT);
               fieldPanel.add(fieldLabel);
               fieldPanel.add(list);
               mainPanel.add(fieldPanel);
               JScrollPane mainScrolls = new JScrollPane(mainPanel,
                         JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
                         JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
               mainScrolls.setPreferredSize(new Dimension(200, 200));
               setContentPane(mainScrolls);
     public static void main(String[] args) {
          new ComboTest();
}And here is the WrappingList that it references
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Insets;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.ListCellRenderer;
import javax.swing.ListModel;
import javax.swing.border.EmptyBorder;
import javax.swing.plaf.basic.BasicListUI;
import javax.swing.text.View;
* List that wraps its text! Whenever the list's layout (e.g. size) changes the
* list's UI is instructed to update its layout too.
public class WrappingList extends JList {
     public WrappingList() {
          setUI(new WrappingListUI());
          setCellRenderer(new WrappingListCellRenderer());
     public WrappingList(ListModel model) {
          super(model);
          setUI(new WrappingListUI());
          setCellRenderer(new WrappingListCellRenderer());
     @Override
     public void doLayout() {
          ((WrappingListUI) getUI()).updateLayoutState();
          super.doLayout();
     @Override
     public boolean getScrollableTracksViewportWidth() {
          return true;
      * ListUI implementation that exposes the method for updating its layout
     private static class WrappingListUI extends BasicListUI {
          @Override
          public void updateLayoutState() {
               super.updateLayoutState();
      * List cell renderer that uses the list's width to alter its preferred size
      * TODO - override bound properties in the same way as
      * DefaultListCellRenderer
     public static class WrappingListCellRenderer extends JTextPane implements
               ListCellRenderer {
          public WrappingListCellRenderer() {
               setBorder(new EmptyBorder(1, 1, 1, 1));
          public Component getListCellRendererComponent(JList list, Object value,
                    int index, boolean selected, boolean hasFocus) {
               setBackground(selected ? list.getSelectionBackground() : list
                         .getBackground());
               setForeground(selected ? list.getSelectionForeground() : list
                         .getForeground());
               // TODO - border, font etc.
               setText(String.valueOf(value));
               float hspan = list.getWidth();
               View view = (getUI()).getRootView(this);
               view.setSize(hspan, Float.MAX_VALUE);
               float vspan = view.getPreferredSpan(View.Y_AXIS);
               Insets insets = getInsets();
               setPreferredSize(new Dimension(insets.left + insets.right
                         + (int) hspan, insets.top + insets.bottom + (int) vspan));
               return this;
     public static void main(String[] args) {
          new Test();
     public static class Test extends JFrame {
          public Test() {
               setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
               init();
               pack();
               show();
          private void init() {
               JList list = new WrappingList();
               list
                         .setListData(new Object[] {
                                   "Item One",
                                   "Item Two content content content content Item Two content content content content Item Two content content content content Item Two content content content content" });
               setContentPane(new JScrollPane(list,
                         JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
                         JScrollPane.HORIZONTAL_SCROLLBAR_NEVER));
}You can verify (in System.out) that the preferred size is larger than the actual default size once you switch to the longer value in the combo box, but the actual size doesn't change. I've tried setSize, setMinimumSize, nothing makes the JScrollPane/Editor any larger. I've also tried calling and not calling various combinations of revalidate(), getParent().revalidate() and getViewport().revalidate(). What am I missing?
Edited by: inspired2apathy on Oct 16, 2010 7:22 PM

inspired2apathy wrote:
... The goal is a ScrollPane that automatically wraps the text inside it. I've just about got it, but I have one thing that's not working. If I just put the JTextArea{s} in as the Editor, then you lose the any text that doesn't fit inside whatever the initial size was. Instead, I put the JTextAreas inside a JScrollPane which works fine, except that I still have to determine the size of the JScrollPane in advance. I would like to make each Editor/JScrollPane start out with just a single line of text and expand until it reaches a certain small number of lines.
... What am I missing?THE BASICS. See if this isn't what you are trying to do.
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class Test
public static void main(String[] args) {
    JTextArea ta = new JTextArea();
    ta.setLineWrap(true);
    ta.setWrapStyleWord(true);
    JScrollPane sp = new JScrollPane(ta);
    JFrame f = new JFrame();
    f.getContentPane().add(sp, "Center");
    f.setBounds(0, 0, 400, 300);
    f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
    f.setVisible(true);
}OP, your code was too long and complicated for me to compile and run. However, aren't you forgetting the two simple methods <tt>JTextArea.setLineWrap()</tt> and <tt>JTextArea.setWrapStyleWord()</tt>? Furthermore, I absolutely see no need for you to extend SWING components for demonstration this simple -- that is, if I understand your problem correctly.

WS-Security, WSE, Web Services, Authentication and Flex 2

Hey All,
I've been working hard on getting Flex to communicate with a
Microsoft .NET 2.0 Web Services project enabled with WSE 3.0
WS-Security. I can't seem to get the headers into the SOAP request
that I need.
For example, I can get a SOAP header into the message like
so:
<SOAP-ENV:Envelope xmlns:SOAP-ENV="
http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="
http://www.w3.org/2001/XMLSchema"
xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance">
<SOAP-ENV:Header>
<ns0:Security xmlns:ns0="
http://tempuri.org/">
<ns0:password>pass</ns0:password>
<ns0:username>DOMAIN\Administrator</ns0:username>
</ns0:Security>
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<HelloWorld xmlns="
http://tempuri.org/" />
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
.. but, this isn't what my WSE, WS-Security enabled service
expects. Which is:
<soap:Envelope xmlns:soap="
http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="
http://www.w3.org/2001/XMLSchema"
xmlns:wsa="
http://schemas.xmlsoap.org/ws/2004/08/addressing"
xmlns:wsse="
http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
xmlns:wsu="
http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<soap:Header>
<wsa:Action>
http://tempuri.org/HelloWorld</wsa:Action>
<wsa:MessageID>urn:uuid:5be8b55a-df7b-4547-8def-76282fcd8b47</wsa:MessageID>
<wsa:ReplyTo>
<wsa:Address>
http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address>
</wsa:ReplyTo>
<wsa:To>
http://localhost/CampaignMojoAPI.asmx</wsa:To>
<wsse:Security soap:mustUnderstand="1">
<wsu:Timestamp
wsu:Id="Timestamp-aab299a8-81e3-4d8a-bfa4-555f38978584">
<wsu:Created>2007-06-06T20:26:37Z</wsu:Created>
<wsu:Expires>2007-06-06T20:31:37Z</wsu:Expires>
</wsu:Timestamp>
<wsse:UsernameToken xmlns:wsu="
http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
wsu:Id="SecurityToken-b43668b1-51a3-4ba1-a90a-69eca3b98b66">
<wsse:Username>DOMAIN\Administrator</wsse:Username>
<wsse:Password Type="
http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#Passwor dText">pass</wsse:Password>
<wsse:Nonce>IK4ZemfS1pj3kpdYO5+FBg==</wsse:Nonce>
<wsu:Created>2007-06-06T20:26:37Z</wsu:Created>
</wsse:UsernameToken>
</wsse:Security>
</soap:Header>
<soap:Body>
<HelloWorld xmlns="
http://tempuri.org/" />
</soap:Body>
</soap:Envelope>
I've tried "addSimpleHeader" and "addHeader", but both seem
to inject nested xml elements. Can anyone help me shape this WS
call into the format I need it in? Would it be possible to call
this WS manually via a direct HTTP post from Flex 2?
Thanks!,
Sean

Yeah,
Hey guys - thanks for the responses. I looked into this and
it seems no one uses WS-Security from the browser. That's why even
Google's APIs use alternative key logins, etc. I read from one user
that in the next version of Microsoft's AJAX platform that they
might support it, but that's about it. For now, it looks like
there's not even an AJAX/Javascript way to do this. If we could do
it via Javascript, then we could use the FABridge. I don't think
Flex supports it. I've tried to manipulate the headers into place
via Flex classes and I don't think enough control is there to get
the output in the form that's needed.
I think it's possible to write it in Javascript. But right
now my time budget just doesn't allow for it. I already spent two
whole days re-writing how Flex makes Web Service calls so they're
synchronous with timeouts instead of this massive amount of
asynchronous code they want you to write, so no more
re-writing/extending of components for me for a while.
But if anyone wants to work together to support it via
AJAX/Javascript, I would invest money into developing it.
I would like a public WS-Security AJAX/Javascript framework
for making these calls via WS-Security so I can offer customers a
standard way of accessing/authenticating against our public API
set. It would also make it possible for Flex to access standard web
services with WS-Security enabled.
Let me know what you guys think, or if anyone else has any
good suggestions/software.
Thanks much,
S.

Retrieve data from SQL database and put into a table

Hi all, i encountered this error while trying to create a table in 1 of my panels:
C:\Documents and Settings\L311c01\Desktop\FYPJ Java2\RFIDLogistics.java:25:{color:#ff0000} cannot find symbol
symbol : class ResultSetTable
{color}location: class jdbc_bible.part2.RFIDLogistics
private static ResultSetTable model = new ResultSetTable();
^
C:\Documents and Settings\L311c01\Desktop\FYPJ Java2\RFIDLogistics.java:25: {color:#ff0000}cannot find symbol
symbol : class ResultSetTable
{color}location: class jdbc_bible.part2.RFIDLogistics
private static ResultSetTable model = new ResultSetTable();
I understand that " cannot find symbol class ResultSetTable means that i need to import something which has this ResultSetTable. I suppose my imports are sufficient and i think the error is with the package that i included.
This package was taken from an example in a book named java database programming bible, so i assumed it is reliable and i use it for my insert statement, which had a DataInserter.
Could someone plz help me with this? Thanks alot in advance.
Here are the codes:
{color:#ff0000}package jdbc_bible.part2;{color}
import java.sql.*;
import javax.swing.*;
import java.util.Vector;
import javax.swing.table.AbstractTableModel;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.*;
import java.util.*;
import javax.swing.event.*;
import java.awt.event.*;
import javax.swing.border.*;
import sun.jdbc.odbc.JdbcOdbcDriver;
public class RFIDLogistics extends JFrame{
//Components
// public SimpleClock clock;
private static JTable jt;
private static ResultSetTable model = new ResultSetTable();
some codes
{color:#ff0000}try
{{color}
{color:#ff0000} DataInserter inserter = new DataInserter();
String SQLCommand = "INSERT INTO " + flstr + " (Item_ID,Location_ID) VALUES ('"+Item_ID1+"','"+Location_ID1+"')";
String SQLCommand2 = "UPDATE Location SET Item_ID = '"+Item_ID1+"' WHERE Location_ID = '"+Location_ID1+"'";
inserter.execute(SQLCommand);
inserter.execute(SQLCommand2);
{color} JOptionPane.showMessageDialog(null, "Successful!");
catch(ClassNotFoundException f)
f.printStackTrace();
catch(SQLException f)
f.printStackTrace();
some codes
public JPanel rightPanel() {
JPanel rightPanel = new JPanel();
rightPanel.setLayout(new BoxLayout(rightPanel, BoxLayout.Y_AXIS));
//Forklift title Panel
JPanel panel6 = new JPanel();
panel6.setBorder(new TitledBorder(""));
panel6.setPreferredSize(new Dimension(192,33));
panel6.add(forkliftDetails);
//Forklift 1 Panel
{color:#ff0000} JPanel panel7 = new JPanel();
panel7.setBorder(new TitledBorder("Forklift 1"));
panel7.setPreferredSize(new Dimension(192,120));{color}
{color:#ff0000} String query = "SELECT * FROM Forklift1";
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:RFID Logistics");
PreparedStatement pstmt = con.prepareStatement(query);
ResultSet rs= pstmt.executeQuery();
// display the data in jtable
jt = new JTable();
model.setResultSet(rs);
jt.setModel(model);
catch(ClassNotFoundException sqle){
System.out.println(sqle);
}catch(SQLException sqle){
System.out.println(sqle);
panel7.add(itemDetail1);
itemDetail1TextField.setEditable(false);
panel7.add(itemDetail1TextField);
panel7.add(locationDetail1);
locationDetail1TextField.setEditable(false);
panel7.add(locationDetail1TextField);
panel7.add(jt);
{color}..
//Main Method
public static void main(String args[]) {
RFIDLogistics app = new RFIDLogistics();
app.setFrame();
app.setResizable(false);
app.setDefaultCloseOperation(EXIT_ON_CLOSE);
app.setSize(1024,676);
app.setLocation(0,60);
app.setVisible(true);
If you would like to try if my table can extract, here are the sample codes, just change ur database name which is highlighted in green, and the table name in blue.
Codes:
import java.sql.*;
import javax.swing.*;
import java.util.Vector;
import javax.swing.table.AbstractTableModel;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.*;
import java.util.*;
import javax.swing.event.*;
import java.awt.event.*;
import javax.swing.border.*;
import sun.jdbc.odbc.JdbcOdbcDriver;
public class sample1{
private static JFrame frm;
private static JTable jt;
private static ResultSetTable model = new ResultSetTable();
public static void main(String args[]){
String query = "SELECT * FROM {color:#00ccff}Forklift1{color}";
try
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:{color:#00ff00}RFID Logistics{color}");
PreparedStatement pstmt = con.prepareStatement(query);
ResultSet rs= pstmt.executeQuery();
// display the data in jtable
jt = new JTable();
model.setResultSet(rs);
jt.setModel(model);
frm = new JFrame("Sample");
frm.setSize(400,400);
frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frm.add(jt);
frm.setVisible(true);
}catch(ClassNotFoundException sqle){
System.out.println(sqle);
}catch(SQLException sqle){
System.out.println(sqle);
Could someone plz help me with this? Thanks alot in advance.

public JTable populateTable()
String[] colNames = new String[] {"ID","NAME","SURNAME"};
return new JTable(getSQLData(), colNames);
public Object[][] getSQLData()
stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT [ID], [NAME], [SURNAME] FROM [USERS]");
Object[][[] out = new Object[rs.getFetchSize()][3];//Not sure on getFetchSize but it should work
int i = 0;
while(rs.next())
out[0] = rs.getInt(1);
out[i][1] = rs.getString(2);
out[i++][2] = rs.getString(3);
return out;
The above code will create a JTable with the data retrieved from the DB

How do I address the scrollbar's updateDisplayList properties if I do not instatiate the scrollBar component?

Is there an easier route?
My issue is that I am not attaching the scrollbar via
<mx:HScrollBar or mx:VScrollBar, rather it is being
automatically attached to a container. Therefore my only means of
addressing this particular scrollbar seems to be from within the
condainer's script, and the container's properties do not make
provision for it's child scrollBar's height/width.
Is it a matter of re-writing the default scroll component?
For example, I've skinned a scrollBar using the examples at
Narciso Jaramillo's
http://www.adobe.com/devnet/flex/articles/flex_skins.html
(using Flash) but this article does not explain how to
override the default scaling.
Next I've applied the skins to the Adobe example,
http://examples.adobe.com/flex2/inproduct/sdk/photoviewer/srcview/index.html
within the ThumbnailView.mxml file there is a Vbox containing
a HorizonalList container with the id of photoList , that when
loaded, adds a HorizontalScrollBar, like this..
<mx:HorizontalList id="photoList"
dataProvider="{gallery.photos}"
width="98%" height="135" selectedIndex="0"
itemRenderer="Thumbnail"
styleName="thumbnailList" />
I understand that the scope of this matter may be small in
comparison to other issues but as a designer these otherwise simple
tasks are terribly frustrating and time consuming.
I would appreciate any insight.
Thank You,
Key.

First this forum is intended for questions about Flex
Builder. Flex language questions should be posted in the Flex
General Discussion forum.
That is why you are not getting any response.
There is a yahoo group called flexcomponents that is devoted
to issues around customizing/extending/creating components. The
folks that hang out there are top notch, give it a look.
http://tech.groups.yahoo.com/group/flexcomponents/
Tracy

Extend UI components

Similar Messages

Maybe you are looking for