Stoping a group of child components from listening for mouseover event.

Hi,
I am trying to create a type of navigation system in this little app i'm working on which executes a function when the mouse is rolled over a canvas container. There are four of these canvas container which carry child components like labels, image, and text controls. These canvas containers have an initial alpha values of 0.5 so i want the fade effect to gradually animate to 1.0 when the mouse is rolls over it. When the mouse rolls out i want the alpha to animate the alpha values back to 0.5. I have sucessfuly done this here is a sample code.
     public function rollOverEffect(e:Event):void
          var ROFadeEffect:Fade=new Fade(e.target);
          ROFadeEffect.duration=500;
          ROFadeEffect.alphaFrom=0.5;
          ROFadeEffect.alphaTo=1;
          ROFadeEffect.end();
          ROFadeEffect.play([e.target]);
     public function rollOutEffect(e:Event):void
          var ROFadeEffect:Fade=new Fade(e.target);
         ROFadeEffect.duration=500;
          ROFadeEffect.alphaFrom=1;
          ROFadeEffect.alphaTo=0.5;
          ROFadeEffect.end();
          ROFadeEffect.play([e.target]);
So this is working but not perfect...everytime my mouse rolls over the canvas it comes to life (Fades in).....but when it rolls over its child components, it fades out. I really dont follow why. Do i need to stop these child components from recieving events or what
here is the MXML code for the UI
     <mx:Canvas alpha="0.5" id="newMemCanvas" mouseOver="rollOverEffect(event)" mouseOut="rollOutEffect(event)" x="448" y="32" width="252"      height="218" backgroundColor="#FBFBFB" borderColor="#15B5F7" borderStyle="solid" borderThickness="1" cornerRadius="4">
          <mx:Label x="61" y="24" text="New Members" fontWeight="bold" fontSize="14" color="#0EB6DA"/>
          <mx:Label x="10" y="65" text="0 New Member(s)" fontWeight="normal" fontSize="12" color="#434343"/>
          <mx:Image x="17" y="10" source="resource/studentUser.png" width="36" height="42"/>
          <mx:HRule x="14" y="55" width="226"/>
     </mx:Canvas>
     <mx:Canvas alpha="0.5" id="recPosted" mouseOver="rollOverEffect(event)" mouseOut="rollOutEffect(event)" x="448" y="252" width="252"               height="218" backgroundColor="#FBFBFB" borderColor="#15B5F7" borderStyle="solid" borderThickness="1" cornerRadius="4">
          <mx:Label x="42" y="16" text="Recently Posted" fontWeight="bold" fontSize="14" color="#0EB6DA"/>
          <mx:Label x="14" y="65" text="No Post Yet!" fontWeight="normal" fontSize="12" color="#434343"/>
          <mx:Image x="10" y="10" source="resource/blog_post_new.png"/>
          <mx:HRule x="10" y="51" width="226"/>
     </mx:Canvas>
     <mx:Canvas alpha="0.5" mouseOver="rollOverEffect(event)" mouseOut="rollOutEffect(event)" x="702" y="32" width="252" height="218"      backgroundColor="#FBFBFB" borderColor="#15B5F7" borderStyle="solid" borderThickness="1" cornerRadius="4">
          <mx:Label x="78" y="23" text="Unread Messages" fontWeight="bold" fontSize="14" color="#0EB6DA"/>
          <mx:Label x="17" y="64" text="0 Unread Message(s)" fontWeight="normal" fontSize="12" color="#434343"/>
          <mx:HRule x="14" y="54" width="226"/>
          <mx:Image x="10" y="20" source="resource/unreadMess.png" width="60" height="30"/>
     </mx:Canvas>
     <mx:Canvas alpha="0.5" mouseOver="rollOverEffect(event)" mouseOut="rollOutEffect(event)" x="703" y="253" width="248" height="218"      backgroundColor="#FBFBFB" borderColor="#15B5F7" borderStyle="solid" borderThickness="1" cornerRadius="4">
          <mx:Image x="10" y="10" source="resource/mainLogo.png" width="41" height="35"/>
          <mx:Label x="55" y="18" text="Guided Tours" fontWeight="bold" fontSize="14" color="#0EB6DA"/>
          <mx:HRule x="11" y="51" width="226"/>
          <mx:Label x="10" y="66" text="Tower Building Video" fontWeight="normal" fontSize="11" color="#434343" textDecoration="underline"/>
          <mx:Label x="10" y="89" text="Student Interviews" fontWeight="normal" fontSize="11" color="#434343" textDecoration="underline"/>
          <mx:Label x="10" y="111" text="Social Events" fontWeight="normal" fontSize="11" color="#434343" textDecoration="underline"/>
          <mx:Label x="10" y="132" text="Living the School Life" fontWeight="normal" fontSize="11" color="#434343" textDecoration="underline"/>
     </mx:Canvas>
...any help will be greatly appreciated...thanx

Hi l33tian,
Check the below code with small modifications that I have made to your code in order to make it work...
Observe the changes that I have made in your rollOver and rollOut functions and also in the mxml code in which I have taken a seperate canvas for all the canvases and added the mouseOver and mouseOut events on this canvas instead of outer canvas so that we can eliminte the problem of FadeOut when we mouseOver on the child components of canvas...
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" >
<mx:Script>
<![CDATA[
   import mx.effects.Fade;
   import mx.controls.Alert;
   public function rollOverEffect(e:Event):void
            var ROFadeEffect:Fade=new Fade(e.currentTarget.parent);
            ROFadeEffect.duration=500;
            ROFadeEffect.alphaFrom=0.5;
            ROFadeEffect.alphaTo=1;
            ROFadeEffect.end();
            ROFadeEffect.play([e.currentTarget.parent]);
       public function rollOutEffect(e:Event):void
           var ROFadeEffect:Fade=new Fade(e.currentTarget.parent);
           ROFadeEffect.duration=500;
           ROFadeEffect.alphaFrom=1;
            ROFadeEffect.alphaTo=0.5;
            ROFadeEffect.end();
            ROFadeEffect.play([e.currentTarget.parent]);
]]>
</mx:Script>
<mx:Canvas alpha="0.5" id="newMemCanvas" x="448" y="32" width="252" height="218" backgroundColor="#FBFBFB" borderColor="#15B5F7" borderStyle="solid" borderThickness="1" cornerRadius="4">
          <mx:Label x="61" y="24" text="New Members" fontWeight="bold" fontSize="14" color="#0EB6DA"/>
          <mx:Label x="10" y="65" text="0 New Member(s)" fontWeight="normal" fontSize="12" color="#434343"/>
          <mx:Image x="17" y="10" source="resource/studentUser.png" width="36" height="42" maintainAspectRatio="false"/>
          <mx:HRule x="14" y="55" width="226"/>
     <mx:Canvas width="100%" height="100%" mouseOver="rollOverEffect(event)" mouseOut="rollOutEffect(event)" />
     </mx:Canvas>
     <mx:Canvas alpha="0.5" id="recPosted" x="448" y="252" width="252" height="218" backgroundColor="#FBFBFB" borderColor="#15B5F7" borderStyle="solid" borderThickness="1" cornerRadius="4">
          <mx:Label x="42" y="16" text="Recently Posted" fontWeight="bold" fontSize="14" color="#0EB6DA"/>
          <mx:Label x="14" y="65" text="No Post Yet!" fontWeight="normal" fontSize="12" color="#434343"/>
          <mx:Image x="10" y="10" source="resource/blog_post_new.png"/>
          <mx:HRule x="10" y="51" width="226"/>
    <mx:Canvas width="100%" height="100%" mouseOver="rollOverEffect(event)" mouseOut="rollOutEffect(event)" />
     </mx:Canvas>
     <mx:Canvas alpha="0.5" x="702" y="32" width="252" height="218"      backgroundColor="#FBFBFB" borderColor="#15B5F7" borderStyle="solid" borderThickness="1" cornerRadius="4">
          <mx:Label x="78" y="23" text="Unread Messages" fontWeight="bold" fontSize="14" color="#0EB6DA"/>
          <mx:Label x="17" y="64" text="0 Unread Message(s)" fontWeight="normal" fontSize="12" color="#434343"/>
          <mx:HRule x="14" y="54" width="226"/>
          <mx:Image x="10" y="20" source="resource/unreadMess.png" width="60" height="30"/>
    <mx:Canvas width="100%" height="100%" mouseOver="rollOverEffect(event)" mouseOut="rollOutEffect(event)" />
     </mx:Canvas>
     <mx:Canvas alpha="0.5" x="703" y="253" width="248" height="218"      backgroundColor="#FBFBFB" borderColor="#15B5F7" borderStyle="solid" borderThickness="1" cornerRadius="4">
          <mx:Image x="10" y="10" source="resource/mainLogo.png" width="41" height="35"/>
          <mx:Label x="55" y="18" text="Guided Tours" fontWeight="bold" fontSize="14" color="#0EB6DA"/>
          <mx:HRule x="11" y="51" width="226"/>
          <mx:Label x="10" y="66" text="Tower Building Video" fontWeight="normal" fontSize="11" color="#434343" textDecoration="underline"/>
          <mx:Label x="10" y="89" text="Student Interviews" fontWeight="normal" fontSize="11" color="#434343" textDecoration="underline"/>
          <mx:Label x="10" y="111" text="Social Events" fontWeight="normal" fontSize="11" color="#434343" textDecoration="underline"/>
          <mx:Label x="10" y="132" text="Living the School Life" fontWeight="normal" fontSize="11" color="#434343" textDecoration="underline"/>
          <mx:Canvas width="100%" height="100%" mouseOver="rollOverEffect(event)" mouseOut="rollOutEffect(event)" />
     </mx:Canvas>
</mx:Application>
Check this out and please let me know..
Thanks,
Bhasker

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        bpcs.weightx = 0.0;
        bpcs.weighty = 1.0;
        this.setLayout(gblo);   //Sets the Layout of the panel to a GridBagLayout
        this.add(tp, tpcs); //Adds the TopPanel to the MainPanel using the TopPanel layout
        this.add(lp, lpcs); //Adds the LeftPanel to the MainPanel using the LeftPanel layout
        this.add(cp, cpcs); //Adds the CanvasPanel to the MainPanel using the CanvasPanel layout
        this.add(rp, rpcs); //Adds the RightPanel to the MainPanel using the RightPanel layout
        this.add(bp, bpcs); //Adds the BottomPanel to the MainPanel using the BottomPanel layout
        gblo.layoutContainer(this); //Lays Out the Container
    public PanelSizes getPanelSizes(){
        return ps;
    public void actionPerformed(ActionEvent e) {
        System.out.print("\nExternal Class finds event!");
        /*String command = e.getActionCommand();
        if (command.equals("pencil")){
            System.out.print("\nYESSSSSSSSSSSSSSSSSSSSS!");
    /* Create of objects using the PanelSizes funtions for defining the */
    PanelSizes ps = new PanelSizes();   //Creates a new PanelSizes object for sizing the panel
    CanvasPanel cp = new CanvasPanel(ps.getCentrePanelDimension()); //Creates a new Canvas Panel
    TopPanel tp = new TopPanel(ps.getHorizontalPanelDimension()); //Creates the TopPanel
    BottomPanel bp = new BottomPanel(ps.getHorizontalPanelDimension()); //Creates the BottomPanel
    LeftPanel lp = new LeftPanel(ps.getVerticalPanelDimension()); //Creates the LeftPanel
    RightPanel rp = new RightPanel(ps.getVerticalPanelDimension());   //Creates the RightPanel
    /* I have chosen to create individual constraints for each panel to allow for adding of all
     components a the end of the constructor. This will use slightly more memory but gives clarity
     in the code */
    GridBagConstraints cpcs = new GridBagConstraints();
    GridBagConstraints tpcs = new GridBagConstraints();
    GridBagConstraints bpcs = new GridBagConstraints();
    GridBagConstraints lpcs = new GridBagConstraints();
    GridBagConstraints rpcs = new GridBagConstraints();
    GridBagLayout gblo = new GridBagLayout();
}Any help will be greatly appreciated :-)

Listener for dispatched event

Hi,
I had a problem which the majority of got sorted out with
help from other people but it's left me with one last part i dont
get...
I have a main.swf which loads into a loader an external swf
called menu1.swf. I'm trying to get a function triggered in the
main.swf when it recieves an event dispatched from the menu1.swf.
The main problem i had was getting the event to dispatch from the
loaded swf but that's now sorted. My main problem now is where to
add the listener in the main.swf to listen out for this event.
I've been informed it's not the loader i should be attaching
the listener to, but rather it's contents ( the function i want to
call is to unload the loader once the event from the contents of
that loader has been dispatched). Now the contents is menu1.swf,
but i didnt think you could attach a listener to a swf? I was also
told that once the loader has completed loading, the swf is no
longer a swf, but instead becomes content.data...
So what am i attaching a listener to? should it be
loader.content.data.addEventlistener(... );
it's got me stumped?

Hi kglad - thanks for the reply.
Just want to point out im using the TweenMax engine to call
the function which will dispatch the event in the loaded.swf.
I've added the code you suggested to the loaderComplete
function in my main.swf script like you suggested ( to guarantee
their be some content in the loader) and got this:
TypeError: Error #1034: Type Coercion failed: cannot convert
flash.events::Event@4097da9 to flash.events.MouseEvent.
at
flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at menu_1/menu_1::callUnload()[C:\Users\andrew\Desktop\New
Folder (2)\work\menu_1.as:164]
at Function/
http://adobe.com/AS3/2006/builtin::apply()
at
gs::TweenLite/complete()[C:\Users\andrew\Desktop\flash\actionscripts\gs\TweenLite.as:416]
at
gs::TweenFilterLite/render()[C:\Users\andrew\Desktop\flash\actionscripts\gs\TweenFilterLi te.as:361]
at
gs::TweenLite$/executeAll()[C:\Users\andrew\Desktop\flash\actionscripts\gs\TweenLite.as:3 95]
dont suppose you know what all that means do you? I've read
that theirs a bug in the onComplete tween of the TweenMax engine -
any chance that's what this is at all?...

Listening for change events on a JTable

Hi
me = Java newbie!
Well I've been building an app to read EXIF data from JPEG files using the imageio API and Swing. Learning both along the way.
Stumbling block is that I am outputting the EXIF data into a JTable, inside a JScrollPane. These 2 components then become associated with a JInternalFrame container of the class MyInternalFrame.
Works!
Next job is to enable user to select a row in the table which then displays the image file.
I know I can use ListSelectionEvent to detect a row selection and that 2 events are fired.
I put some code into MyInternalFrame class to register a ListSelectionEvent, but I can't see how to reference MyInternalFrame from within this code....see below:
package EXIFReader;
import java.io.File;
import java.io.FilenameFilter;
import javax.swing.JInternalFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
//This class constructs a table and displays it in a JInternalFrame
public class MyInternalFrame extends JInternalFrame {
static int openFrameCount = 0;
static final int xOffset = 30, yOffset = 30;
File file;
File[] directoryMembers = null;
public MyInternalFrame(File aFile) { //aFile rererences a directory containing jpeg files//
super(null,
true, //resizable
true, //closable
true, //maximizable
true);//iconifiable
file = aFile;
//Set the window's location.
this.setLocation(xOffset*openFrameCount, yOffset*openFrameCount);
FilenameFilter filter = new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.endsWith(".jpg");}};//Filter out any files in the directory that ain't jpegs
directoryMembers = file.listFiles(filter);
int i = 0;
String[][] tableData= new String [directoryMembers.length][5];
String[]headers = new String[]{"File Name","Date Taken",
"F-Number","Exposure",
"Flash Settings"};
for (File dirfile: directoryMembers)
try {
if(dirfile!=null){
tableData[i] = new ExifReader(dirfile).getEXIFData();//populate the table with jpeg file names
i++;}}
catch (Exception ex) {
System.out.print("Error" + ex);
if (tableData[0] != null){
final JTable myTable = new JTable(tableData,headers);
this.setSize(900,(50+(directoryMembers.length)*19));
myTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
this.getContentPane().add(new JScrollPane(myTable),"Center");//add the JTable and JScrollPanel to this MyInternal Frame and display it! - cool it works!
ListSelectionModel myLSM = myTable.getSelectionModel();
myLSM.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent le) {
int[] rows = myTable.getSelectedRows();//want to respond to selections and then display the image as a JInternalFrame but got confused about references from within this listener - need help!
Any gentle nudges?!
P
I can respond to these events using a JFrame, but how can I display the image in a JInternalFrame?

Use code tags to post codes -- [code]CODE[/code] will display asCODEOr click the CODE button and paste your code between the {code} tags that appear.
To get better help sooner, post a [_SSCCE_|http://mindprod.com/jgloss/sscce.html] that clearly demonstrates your problem.
db

Listening for click event on an af:image tag

Dear All,
Can anybody help me why my code does not work.
Use case, using an Image, i wanted to call a managed bean method whenever I clicked the image. So here is what I did, I added a clientlistner
and wait for the click event. Also a server listener is attached to the image.
<af:image >
     <af:clientListener type="click" method="handleImageClick"/>
     <af:serverListener type="ImageEvent"
                       method="#{viewScope.MyBean.handleImageEvent}"/>
</af:image>...and here is my javascript...
<f:facet name="metaContainer">
     <af:resource type="javascript">
       function handleImageClick(evt)
            var comp = evt.getSource();
            AdfCustomEvent.queue(comp, "ImageEvent",{ fvalue : comp.getSubmittedValue()},false);
            evt.cancel();
     </af:resource>
</f:facet>..and here is my managed bean method.
public void handleImageEvent(ClientEvent ce)
}I jsut dont know why it does not call my managed bean method. Is there any mistake in my code?
JDEV 11G PS5
Thanks

codigoadf wrote:
the problem is in Javascript. remove "fvalue : comp.getSubmittedValue()" and will work fine.
AdfCustomEvent.queue(comp, "ImageEvent",{ },false);comp.getSubmittedValue()?? comp is a imageAhhh yeah..I just copy pasted this code from google..
Thanks for your help...it now works..

Create Component that Listens for Custom Event

I've read a lot of tutorials and posts in this forum but still seem to be missing something.
I want to be able to create an arbitrary number of instances of a custom class (based on Button) that each listen to a custom event dispatched in the application. Eventually the event will carry data (including information that will let each Button determine whether it should react to the event), but for now I just want them to be able to hear the event.
What's supposed to happen is
1) Clicking the button labeled "I Make the Button" creates an instance of EventHearingButton using this.addElement.
2) Clicking the button labeled "I Send the Event" dispatches the SuperCustomEvent custom event, with the additional information "I heard that" stored in the Information string
3) The created EventHearingButton hears the event and updates its label to the value in the Information string.
What actually happens is the EventHearingButton is created OK, but nothing happens when the "I Send the Event" button is clicked.
Main.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
                  xmlns:s="library://ns.adobe.com/flex/spark"
                  xmlns:mx="library://ns.adobe.com/flex/halo">
     <fx:Metadata>
          [Event(name="SuperCustomEvent", type="Classes.SuperCustomEvent")]
     </fx:Metadata>
     <fx:Script>
          <![CDATA[
               import Classes.EventHearingButton;
               import Classes.SuperCustomEvent;
               protected function EventDispatcherButton_clickHandler(event:MouseEvent):void
                    var NewEvent:SuperCustomEvent = new SuperCustomEvent("I heard that");
                    this.dispatchEvent(NewEvent);
               protected function button1_clickHandler(event:MouseEvent):void
                    var NewButton:EventHearingButton = new EventHearingButton();
                    NewButton.x=270;
                    NewButton.y=130;
                    this.addElement(NewButton);
          ]]>
     </fx:Script>
     <s:Button x="270" y="90" label="I Send The Event" id="EventDispatcherButton" click="EventDispatcherButton_clickHandler(event)"/>
     <s:Button x="270" y="50" label="I Make the Button" click="button1_clickHandler(event)"/>
</s:Application>
Classes.EventHearingButton.as
package Classes
     import spark.components.Button;
     import flash.events.Event;
     import Classes.SuperCustomEvent;
     public class EventHearingButton extends Button
          public function EventHearingButton()
               super();
               this.label="I haven't heard yet";
               this.addEventListener(SuperCustomEvent.SUPERCUSTOMEVENT,SuperCustomEventHandler);
          private function SuperCustomEventHandler(event:SuperCustomEvent):void {
               this.label=event.EventInformation;
Classes.SuperCustomEvent.as
package Classes
     import flash.events.Event;
     public class SuperCustomEvent extends Event
          public var EventInformation:String;
          public static const SUPERCUSTOMEVENT:String = "SuperCustomEvent";
          public function SuperCustomEvent(Information:String)
               super(SuperCustomEvent.SUPERCUSTOMEVENT, true);
               this.EventInformation=Information;
          override public function clone():Event{
               return new SuperCustomEvent(EventInformation);

"nikos101" <[email protected]> wrote in
message
news:ga59t5$8nh$[email protected]..
>I tried something like what AMy described in a custom
component
>
> dispatchEvent(new Event("Cancelled_Form"));
>
> I then added the following Listener in my application
file;
>
> this.addEventListener("Cancelled_Form",cancelledForm);
>
> but it is never heard. Does anyone know what I have done
wrong?
Try attaching the event listener to your component rather
than the
application.
HTH;
Amy

Listening for HorizontalList event

I have a HorizontalList whose dataProvider is ArrayCollection
object which consists of images so basically i am loading images
inside HorizontalList. What type of event should i listen to if i
want to know when loading of all images inside HorizontalList is
finished?
thanks in advance

I tried but it didn't work, creationComplete is triggered
when component is created but not when all images are loaded inside
it.

Stoping a group of child components from listening for mouseover event.

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