Nabble - FlexCoders

Combo Box & Data Grid

2009-11-25T14:28:04Z

If I have a table with a field that contains the numbers 0,1,2,3 and I want them to be displayed in the data grid say as "Non-Member", "Member","Instructor","Administrator" and be able to select them with a combo box only to have the numeric value posted back to the table.

How do you do it?

Re: how to get an array as a part from another array?

2009-11-25T14:20:35Z

private function seniorsOnly(person:*, index:int, arr:Array):Boolean{
return (person.isSenior == true?true:false);
}

private function init():void{

var ac:ArrayCollection = new ArrayCollection([
{id:1, name:"bob", sex:"m", isSenior:true},
{id:2, name:"kathy", sex:"f", isSenior:false},
{id:3, name:"joe", sex:"m", isSenior:false},
{id:4, name:"barb", sex:"f", isSenior:true},
{id:5, name:"pete", sex:"m", isSenior:true}
]);

var seniors:Array = ac.toArray().filter(seniorsOnly);

--- In flexcoders@..., "turbo_vb" <TimHoff@...> wrote:

>
> Could use a filterFunction.
>
> -TH
>
> --- In flexcoders@..., coder3 <rrhuang@> wrote:
> >
> >
> > Hi All,
> >
> > I have a ArrayCollection, it contains "id", "name", "sex", "isSenior", etc.
> > now i only need an array of "id" through that list. what's the quickest way
> > to get an array of "id"s if "isSenior" is true, without using a loop?
> >
> > thanks
> >
> > C
> >
> > --
> > View this message in context: http://old.nabble.com/how-to-get-an-array-as-a-part-from-another-array--tp26519700p26519700.html
> > Sent from the FlexCoders mailing list archive at Nabble.com.
> >
>

Re: how to get an array as a part from another array?

2009-11-25T14:05:39Z

Could use a filterFunction.

-TH

--- In flexcoders@..., coder3 <rrhuang@...> wrote:

>
>
> Hi All,
>
> I have a ArrayCollection, it contains "id", "name", "sex", "isSenior", etc.
> now i only need an array of "id" through that list. what's the quickest way
> to get an array of "id"s if "isSenior" is true, without using a loop?
>
> thanks
>
> C
>
> --
> View this message in context: http://old.nabble.com/how-to-get-an-array-as-a-part-from-another-array--tp26519700p26519700.html
> Sent from the FlexCoders mailing list archive at Nabble.com.
>

Re: When does 0.2 and 0.1 not equal 0.3?

2009-11-25T12:55:28Z

Yes, you've discovered the joys of floating point maths. Not a bug,
just a fact of life for anyone working in just about every programming
language there is.

Work in integers if you want integer results, or use the functions
under the Math class to round things to suit your needs.

Guy

On 26/11/2009, at 7:33 AM, kidl33t wrote:

> I have encountered an odd bug. In the process of creating a little
> numeric stepper component (a text box with an up/down stepper beside
> it) I have found an odd rounding error. Starting from 0.0 and adding
> 0.1 increments, I get the follow console output.
>
> currentNumber: 0 increment: 0.1
> result: 0.1
>
> currentNumber: 0.1 increment: 0.1
> result: 0.2
>
> currentNumber: 0.2 increment: 0.1
> result: 0.30000000000000004
>
> As you can see, .2 + .1 is yielding 0.30000000000000004. This
> behaviour happens at at many numbers actually.
>
> You can verify this yourself by simply doing a: trace( (0.1 + 0.2) );
>
> The other flex developer at our company can also see this error, so
> I don't think it's isolated to my box or particular build. Does
> anyone know anything about this?
>
>
>

When does 0.2 and 0.1 not equal 0.3?

2009-11-25T12:33:58Z

I have encountered an odd bug. In the process of creating a little numeric stepper component (a text box with an up/down stepper beside it) I have found an odd rounding error. Starting from 0.0 and adding 0.1 increments, I get the follow console output.

currentNumber: 0 increment: 0.1
result: 0.1

currentNumber: 0.1 increment: 0.1
result: 0.2

currentNumber: 0.2 increment: 0.1
result: 0.30000000000000004

As you can see, .2 + .1 is yielding 0.30000000000000004. This behaviour happens at at many numbers actually.

You can verify this yourself by simply doing a: trace( (0.1 + 0.2) );

The other flex developer at our company can also see this error, so I don't think it's isolated to my box or particular build. Does anyone know anything about this?

how to get an array as a part from another array?

2009-11-25T12:23:53Z

Hi All,

I have a ArrayCollection, it contains "id", "name", "sex", "isSenior", etc.
now i only need an array of "id" through that list. what's the quickest way to get an array of "id"s if "isSenior" is true, without using a loop?

thanks

C

Using custom subclasses as children of larger components

2009-11-25T12:02:26Z

Is there way to tell a TabBar component to use custom subclass of Button for
each of its tabs?

--
--Joel Stransky
stranskydesign.com

How to know when a popup component is visible?

2009-11-25T10:40:46Z

I had a thread going here about how to show progress before a potentially
long-running but synchronous operation (in my case encoding a DisplayObject
as a PNG or JPEG to add to an AlivePDF PDF.

Since I can't seem to force a busy cursor (ironic), one of the suggestions
was to pop up a window before starting the encoding. But I've tried
listening to creationComplete, render, show, addedToStage etc. etc., and in
all cases the popup doesn't appear until the encoding is complete.

I was unable to find any event dispatched by the PopupManager either.

Help!

Drawing glitch

2009-11-25T10:33:12Z

I have a banner consisting of a left-to-right gradient (ending in white)
followed by a logo. The programmatic skin below is used as a border skin of
an HBox.
It looks great, and you can resize the window, but if you maximize it, the
darker color of the gradient appears on either side of the logo.

The MXML structure is as follows.

<mx:HBox width="100%" styleName="bannerBox"
verticalAlign="middle">
<mx:HBox width="100%" height="100%" styleName="bannerGradient"
verticalAlign="middle" >
<mx:VBox paddingTop="0" paddingBottom="0" verticalGap="0">
<mx:Label text="{resourceManager.getString('admin',
'productName_'+brand)}" styleName="productTitle"/>
<mx:Label text="{resourceManager.getString('admin',
'applicationName_'+brand)}" styleName="applicationTitle"/>

</mx:VBox>

</mx:HBox>
<mx:Image id="logo" source="{resourceManager.getObject('admin',
'companyLogo_'+brand)}" />
</mx:HBox>

Any ideas?
- Richard

public class GradientBackground extends ProgrammaticSkin
{
override public function get measuredWidth():Number
{
return 20;
}

override public function get measuredHeight():Number
{
return 20;
}

override protected function updateDisplayList(unscaledWidth:Number,
unscaledHeight:Number):void
{
var fillColors:Array = getStyle("fillColors");
var fillAlphas:Array = getStyle("fillAlphas");
var cornerRadius:int = getStyle("cornerRadius");
var gradientType:String = getStyle("gradientType");
var angle:Number = getStyle("angle");
var focalPointRatio:Number = getStyle("focalPointRatio");

// Default values, if styles aren't defined
if (fillColors == null)
fillColors = [0xEEEEEE, 0x999999];

if (fillAlphas == null)
fillAlphas = [1, 1];

if (gradientType == "" || gradientType == null)
gradientType = "linear";

if (isNaN(angle))
angle = 90;

if (isNaN(focalPointRatio))
focalPointRatio = 0.5;

var matrix:Matrix =
this.rotatedGradientMatrix(0,0,unscaledWidth,unscaledHeight,angle * Math.PI
/ 180);

this.drawRoundRect(0,0, unscaledWidth,unscaledHeight,
cornerRadius*.5, fillColors, fillAlphas, matrix, gradientType);
}

Re: Can't Listen to component?

2009-11-25T10:28:10Z

addEventListener instead.

-TH

--- In flexcoders@..., "criptopus" <sd_brown@...> wrote:

>
> I am getting an error on the line that starts with "myUserCntr."
> which is 1061: Call to a possibly undefined method addListener through a reference with static type comps:userCntr.
>
> Can kind person tell me where I am going wrong here as index.mxml needs to listen for a dispatch event on one of its components &
> the component is MXML'ed into the index.mxml file rather than
> created through actionscript?
>
> - Stephen
>
> ===========================
> index.mxml The Main Display
> ===========================
>
> ...
> import flash.events.Event;
>
> private function init():void
> {
> myUserCntr.addListener("OpenAdmnCntr", openAdmnCntrHandler);
> }
>
> private function openAdmnCntrHandler():void
> {
> // Do something.
> }
> ...
>
> ...
> <comps:userCntr id="myUserCntr"/>
>
>
>
> =============================
> userCntr.mxml (The Component)
> =============================
>
> ...
> <mx:Metadata>
> [Event(name="OpenAdmnCntr", type="flash.events.Event")]
> </mx:Metadata>
> ...
>
> ...
> dispatchEvent(new Event('OpenAdmnCntr'));
> ...
>

Can't Listen to component?

2009-11-25T10:19:50Z

I am getting an error on the line that starts with "myUserCntr."
which is 1061: Call to a possibly undefined method addListener through a reference with static type comps:userCntr.

Can kind person tell me where I am going wrong here as index.mxml needs to listen for a dispatch event on one of its components &
the component is MXML'ed into the index.mxml file rather than
created through actionscript?

- Stephen

===========================
index.mxml The Main Display
===========================

...
import flash.events.Event;

private function init():void
{
myUserCntr.addListener("OpenAdmnCntr", openAdmnCntrHandler);
}

private function openAdmnCntrHandler():void
{
// Do something.
}
...

...
<comps:userCntr id="myUserCntr"/>

=============================
userCntr.mxml (The Component)
=============================

...
<mx:Metadata>
[Event(name="OpenAdmnCntr", type="flash.events.Event")]
</mx:Metadata>
...

...
dispatchEvent(new Event('OpenAdmnCntr'));
...

where to get "official" answer to question about AIR's SQLite implementation and LoadableExtensions mechanism support?

2009-11-25T09:25:58Z

A simple function I
need does not exist in the SQLite engine core but the SQLite gurus are telling me to write my own function in C and load it at runtime as a "loadable extension". (I
have good reasons, BTW, for not wanting the function to execute in the
client--it really belongs in the back-end.)

http://www.sqlite.org/cvstrac/wiki?p=LoadableExtensions

The LoadableExtensions mechanism is disabled by default, and Adobe in its implementation of SQLite may not have enabled the
LoadableExtensions mechanism; or if it is enabled, a developer does not know
whether it is "officially" enabled or an undocumented
use-at-your-own-risk feature.

Where would one get an official
answer to the LoadableExtension supported/not-supported question? I've
tried the AIR forum at Adobe but my question was not answered there.

Thanks

Re: Flex 3: AIR & Local Database

2009-11-25T09:20:52Z

The answer to your question about "large scale" is yes, AIR + SQLite can handle large datasets but with some caveats.

I
have a SQLite database that is several hundred megabytes. The main
tables contain 4 million rows, 275000 rows, and 3500 rows. Queries that
join these tables, when the query makes use of indexes, execute in under
100 milliseconds. Snappy.

However, some things in the AIR
implementation of SQLite are causing index optimizations with the
LIKE() operator not to work, both in regular statements and in prepared
statements. I am not sure what these things are because the differences between the AIR implementation of SQLite and SQLite proper haven't been documented. They could be things like overloading certain core SQLite functions, or compiling statements/prepared statements with one of the functions that cause the optimizer not to use an index.

As a result of these mysterious things, if you run a query like SELECT * from MEMBERSHIP where
MEMBER_LASTNAME LIKE 'Johns%' the query will do a full table scan.
Do a more complex column value starts-with query that involves joins, and the table scan can translate
to very poor performance. For example, when I execute my query at the
SQLITE3.EXE command-line, where the index IS used, the query executes in under
100ms but the identical query takes 45-50 seconds in AIR.

Also, to keep the
front-end responsive when working with large datasets, you will have to
use asynchronous data connections not synchronous connections. The
coding is somewhat more complicated but also I found the AIR debugger
to be less than robust when working with asynchronous connections and
data events. However, everything worked OK with Responders, so I'd
recommend the use of responder objects over the event-dispatch
architecture.

I have no experience to offer you with concurrency issues and SQLite. My AIR + local-db application is single-user.

Regards
TR

jwc_wensan wrote:
>
>
In all the articles I have read and some examples, it only talks about
using SQLite as the database on the users' PC/Mac. Is that the only
database that can be used locally?

>
> Can that database handle a large-scale commercial AIR app with tens of thousands of records?
>Also, since the AIR app is installed on the users PC/Mac, is there any reason to use mx:Modules?
>
> If the user needs/requires that data remain local, is AIR the best solution?
>
> Does Flex 4 solve any issues?
>
> Thoughts, options, suggestions?
>
> Thanks in advance,
>
> Jack

Re: Flash Builder 4 for Linux Apha3 Released!

2009-11-25T09:12:49Z

run is working but not debug... in the debug perspective, the app gets
terminated before even being launched.
I've installed air2 sdk.

thomas parquier
---
http://www.web-attitude.fr/realisations/
msn : thomas.parquier@...
softphone : sip:webattitude@... <sip%3Awebattitude@...>
téléphone portable : +33601 822 056

2009/11/23 feiy <eshangrao@...>

>
>
> this version fixed the can't run/debug air bug!
>
> more info:http://code.google.com/p/fb4linux/
>
> 闲云孤鹤 - 清冷香中抱膝吟
>
>

Re: MAC : TextInput focus

2009-11-25T08:55:19Z

Julian,

Still the focus is not set:( in the text input filed even after setting
callLater(myComp.setFocus) and more thing is keyboard events wont work, ie.
i mean clicking on tab wont work.Right now i m calling myComp.setFocus in
creation complete event handler.

*code Snippet*
creation complete event handler
private function init():void
{
/// some action script code here
callLater(this.setFocus);
}

P.N: This happens only in safari browser

Thanks,
Suman

Re: Re:Flex Builder 3 for Linux updated

2009-11-25T08:46:49Z

It would be nice to mention in this mail that no effort has been done to
make it compatible with Eclipse 3.5/ 3.4.1
All they had to do is to integrate those two patches:
http://blog.danyul.id.au/?p=68
http://www.jamesward.com/2009/09/29/flex-builder-3-on-eclipse-3-5/

The alpha 5 version is still compatible only with Eclipse <=3.40.

2009/11/25 Michael Slinn <mslinn@...>

>
>
> Life is short. Microsoft is aggressive, and HTML5 looms. Without
> cross-platform support for developers and users Flex and the Flash
> Platform can't compete. Flex had a decent chance to become more than a
> promising product, but the end of that opportunity is in sight. Without
> strong Linux support, Flex will be a casualty of the RIA war; the
> question has become when Flex will cease to be a viable business decision.
>
> This loss was preventable. I say this in the past tense, because
> dithering only begets more dithering. Borland's JBuilder died because
> of dithering, and Borland died in large part because they did not
> respond appropriately to Microsoft and Eclipse. Big Bill is likely to
> win again, using the same tried-and-true script, while playing clean.
>
> Mike
>
>

Re:Flex Builder 3 for Linux updated

2009-11-25T08:42:16Z

Life is short. Microsoft is aggressive, and HTML5 looms. Without
cross-platform support for developers and users Flex and the Flash
Platform can't compete. Flex had a decent chance to become more than a
promising product, but the end of that opportunity is in sight. Without
strong Linux support, Flex will be a casualty of the RIA war; the
question has become when Flex will cease to be a viable business decision.

This loss was preventable. I say this in the past tense, because
dithering only begets more dithering. Borland's JBuilder died because
of dithering, and Borland died in large part because they did not
respond appropriately to Microsoft and Eclipse. Big Bill is likely to
win again, using the same tried-and-true script, while playing clean.

Mike

Re: Questions I always wanted to know the answers to - AsyncTokens

2009-11-25T08:05:28Z

Using an AsyncToken allows you to have only one event listener and one
function to handle all responses from a remote procedure call. You add
some data to the AsyncToken and when the call returns you can check what
the data was and use that to run different code. For example:

myService = new RemoteObject("myDestination");
myService.addEventListener(ResultEvent.RESULT, resultHandler);

var myToken:AsyncToken = myService.getPeople();
myToken.data = "getPeople";
myToken.myService.getPlaces();
myToken.data = "getPlaces";

private function resultHandler(event:ResultEvent):void
{
switch(event.token.data)
{
case "getPeople":
// Do the stuff for getPeople
break;
case "getPlaces":
// Do the stuff for getPlaces
break;
}
}

So, if you have a separate event listener and function for each call you
make, then Flex will work just as well. It is just a different way to do
things.

Also note that data can be anything you want like an object or whatever.

--- In flexcoders@..., "Wally Kolcz" <wkolcz@...> wrote:
>
> What is AsyncToken and why is it preferred over just calling the
Remote Object's method and adding listeners to the method for the result
and fault?
>
> "This class provides a place to set additional or token-level data for
> asynchronous RPC operations. It also allows an IResponder to be
attached
> for an individual call." What is an example of why you would need to
attach the IReponder (addResponser) to a particular method call?
>
> Again, I see on another site this "In you application you have
multiple service calls happening at the
> same time and you need to know which data coming back belongs to which
> call.". Calling the same method/service (getPeople) multiple times in
the same instance or just calling multiple methods (getPeople,
getPlaces, getThings) at the same time? I never had a problem with Flex
mixing up the results of multiple methods being called before as a view
loads up..
>
> Thanks for any info you can provide.
>

Re: List in second tab of TabNavigator has GIANT itemRenderer

2009-11-25T07:56:28Z

--- In flexcoders@..., Chris <zomgforeelz@...> wrote:

>
> You can bind the width of the text field to the dimensions of its parent:
>
> <mx:Canvas id="mainContainer" width="100%" height="100%" styleName="debug1">
> <mx:Text width="{mainContainer.width}" text="here is a very very
> very very very very very very very very very very very very very very very
> very very very very very very very very very very very very very very very
> very very very very long piece of text." />
> </mx:Canvas>
>
>
> This way you don't have to use a 'hard' width. Kind of a hack, I know.

Thanks for the suggestion, but this becomes problematic inside a Repeater, as you have to then give an ID to the parent and to other children in the container and then use really long expressions based on repeater.currentIndex.

Plus, I think that the problem is really that at the time that measure() was called, all of the flexible components confused everything, and I'm not sure that binding to a variable-width component would have helpwed.

Thanks :)

How to tell if a Modal Alert is currently displayed

2009-11-25T07:22:07Z

Hi All,

Is there a way to detect if a modal Alert is being displayed if you
don't have reference to the Alert instance? I have a bug with a custom
popup that is triggered with roll over/out event on an image,
basically set a timer check back in couple hundred millis if the mouse
is still over(hitTestPoint) and if so display the custom popup.
However, at times the application displays an alert and I dont want
show the popup if a Modal alert is currently displayed. Currently,
there is many areas that are responsible for displaying the Alerts and
I am trying to identify a quick and easy way to determine if an Alert
is being displayed.

When a modal Alert is displayed, does the focus change?

Is there some property on my main component(module) that would tell me
that it is not the top layer anymore?

Any help much appreciated,

Greg

Channel.Connect.Failed error NetConnection.Call.Failed: HTTP Status 404

2009-11-25T07:14:14Z

Hi -

I found that this error occurs frequently when moving a Flex project from one machine to another.

In my situation, I am exporting a release build so another developer can run it on their machine; they don't have Flex, only the flash player to run it.

They are receiving this error and the source is a RemoteObject call that points to a service on their machine.

So, do I check the web.xml file for their machine? Or the services-config.xml on their machine?

I just don't know where to start.

Any tips are, of course, very much appreciated.

Happy Thanksgiving.

Thank you.

Questions I always wanted to know the answers to - AsyncTokens

2009-11-25T06:29:28Z

What is AsyncToken and why is it preferred over just calling the Remote Object's method and adding listeners to the method for the result and fault?

"This class provides a place to set additional or token-level data for
asynchronous RPC operations. It also allows an IResponder to be attached
for an individual call." What is an example of why you would need to attach the IReponder (addResponser) to a particular method call?

Again, I see on another site this "In you application you have multiple service calls happening at the
same time and you need to know which data coming back belongs to which
call.". Calling the same method/service (getPeople) multiple times in the same instance or just calling multiple methods (getPeople, getPlaces, getThings) at the same time? I never had a problem with Flex mixing up the results of multiple methods being called before as a view loads up..

Thanks for any info you can provide.

Flex Builder 3 for Linux updated

2009-11-25T06:07:00Z

An updated build for Flex Builder 3 for Linux has just been posted to Labs.
This removes the timeout at the end of this month, but doesn't do a lot else.

News from Andrew Shorten (new Senior Product Manager for Flash Builder) at
http://www.ashorten.com/2009/11/25/updated-build-of-flex-builder-for-linux-available/ :
"If you have any comments or suggestions on Flex Builder for Linux then please
drop me an email and I'll make sure we consider them as we continue to work
on our plans for Linux support."

The article quotes http://www.ashorten.com/contact/ as the way to do that.
Might I suggest everyone drops Andrew a nice polite email please ?
--
Helping to interactively promote web-readiness as part of the IT team of the
year, '09 and '08

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Re: the most popular way to be connected with sql server REFdn0085136210

2009-11-25T05:18:29Z

There is a community edition of WebORB for PHP that is free. Also, Adobe has ties with Zend and you can use Zend_AMF (Part of the Zend Framework) for free.

I think free is cheap enough for everyone ;-}

Also, if you want to connect directly to a MySQL database you can look into a component like ASSQL (http://code.google.com/p/assql/)

--- In flexcoders@..., "dennis" <dennis@...> wrote:

>
> Yes it looks great.
>
>
>
> But developing in in php (only php), there is no need to purchase a kind of
> server like this; where, it is not so cheap. I think that Adobe should have
> developed libraries regarding sql server, as php have done. It seems strange
> where too strong engine (I mean the adobe flash in general) has no the
> ability to be connected with sql servers.
>
>
>
> Of course I think that Weborb-for-php is one of the best architect approach,
> but its is not for low budget projects.
>
> Guys. share your thoughts.
>
>
>
> dennis
>

Re: AIR - Ascynchronous file deletion - fixed order ?

2009-11-25T05:10:38Z

You could hold a list (in this case with 2 filenames) that you delete from
one by one... just pop an element and refire until the list is empty.. That
would also facilitate a progess bar using the original / current length of
the array.

Best regards and have a wonderful day!

Allan Pichler

Brewmaster - ColdFusion/Flex/Ajax/UI

Email: dreamcode@...

Skype: apichler

Yahoo: allan_pichler

RE: Re: the most popular way to be connected with sql server REFdn0085136210

2009-11-25T05:09:07Z

Yes it looks great.

But developing in in php (only php), there is no need to purchase a kind of
server like this; where, it is not so cheap. I think that Adobe should have
developed libraries regarding sql server, as php have done. It seems strange
where too strong engine (I mean the adobe flash in general) has no the
ability to be connected with sql servers.

Of course I think that Weborb-for-php is one of the best architect approach,
but its is not for low budget projects.

Guys. share your thoughts.

dennis

Re: AIR - Ascynchronous file deletion - fixed order ?

2009-11-25T04:08:10Z

So nobody knows this ?

RE: Does datagridcolumn have hide/show or hideEffect/showEffect

2009-11-24T23:14:16Z

No effects for DGColumn. Maybe tween the width to 0 then make it invisible.

Alex Harui
Flex SDK Developer
Adobe Systems Inc.<http://www.adobe.com/>
Blog: http://blogs.adobe.com/aharui

From: flexcoders@... [mailto:flexcoders@...] On Behalf Of Tino Dai
Sent: Tuesday, November 24, 2009 10:13 PM
To: flexcoders@...
Subject: [flexcoders] Does datagridcolumn have hide/show or hideEffect/showEffect

Hi All,

I am wondering does the DataGridColumn have a hideEffect/ShowEffect style setting? I wanted to
have a wipeleft effect when somebody clicks on a column. I have been trying:

var dgc:DataGridColumn = new DataGridColumn();
var wipeOut:WipeLeft = new WipeLeft();

public function wipeOutFunc(event:MouseEvent):void {
dgc.setStyle("hideEffect",wipeOut); // also tried "hide","show", and "showEffect to no effect
dgc.visible = false;
}

Thanks in advance,
-Tino

PS: Not complete code.

Does datagridcolumn have hide/show or hideEffect/showEffect

2009-11-24T22:12:40Z

Hi All,

I am wondering does the DataGridColumn have a hideEffect/ShowEffect
style setting? I wanted to
have a wipeleft effect when somebody clicks on a column. I have been trying:

var dgc:DataGridColumn = new DataGridColumn();
var wipeOut:WipeLeft = new WipeLeft();

public function wipeOutFunc(event:MouseEvent):void {
dgc.setStyle("hideEffect",wipeOut); // also tried "hide","show", and
"showEffect to no effect
dgc.visible = false;
}

Thanks in advance,
-Tino

PS: Not complete code.

Re: E4x finding virtual leaf nodes

2009-11-24T21:17:58Z

How about something like this?

xml..activity.children.length() == 0. I think that would do it

-Tino

On Tue, Nov 24, 2009 at 6:00 PM, mattgarland2000 <alias@...>wrote:

>
>
> My XML is a series of nested "activities." I want to find LEAF activities,
> that is, activities without activity descendents.
>
> Something like this:
>
> xml..activity.(descendents('activity').length()==0)
>
> But of course that does not work. I've always been unsure about the scope
> in predicate filter...
>
>
>

Re: Re: List in second tab of TabNavigator has GIANT itemRenderer

2009-11-24T19:29:24Z

You can bind the width of the text field to the dimensions of its parent:

<mx:Canvas id="mainContainer" width="100%" height="100%" styleName="debug1">
<mx:Text width="{mainContainer.width}" text="here is a very very
very very very very very very very very very very very very very very very
very very very very very very very very very very very very very very very
very very very very long piece of text." />
</mx:Canvas>

This way you don't have to use a 'hard' width. Kind of a hack, I know.

Glad you figured it out in the end tho!
C

On Tue, Nov 24, 2009 at 7:38 PM, Amy <amyblankenship@...> wrote:

>
>
>
>
> --- In flexcoders@... <flexcoders%40yahoogroups.com>, Chris
> <zomgforeelz@...> wrote:
> >
> > Could this be related to resizeToContent on TabNavigator? Alternatively,
> it
> > may be an issue with your dataprovider. Source would be helpful...
>
> Here's what the issue was:
>
> My renderer had a Repeater in it that had Text components that had a
> percentage width on them. Apparently, when the measure() function was called
> on them, they had a teeny width and reported an inaccurately tall height,
> but by the time they showed up on the screen, they had laid themselves out
> well enough to hide the problem. Good old Flex invalidation didn't catch
> whatever changes they did in the background to accomplish this, so I spent
> several hours refreshing my memory about the finer details of the code of
> List, ListBase, Box, BoxLayout, UICompoinent, Container, ViewStack, etc.
>
> The fix turned out to be simply setting a "hard" width on the Text
> component, but of course that makes it infinitely less flexible than if it
> could have possibly worked with a percentage.
>
> What a fun way to spend an evening!
>
>
>

Re: List in second tab of TabNavigator has GIANT itemRenderer

2009-11-24T18:38:37Z

--- In flexcoders@..., Chris <zomgforeelz@...> wrote:
>
> Could this be related to resizeToContent on TabNavigator? Alternatively, it
> may be an issue with your dataprovider. Source would be helpful...

Here's what the issue was:

My renderer had a Repeater in it that had Text components that had a percentage width on them. Apparently, when the measure() function was called on them, they had a teeny width and reported an inaccurately tall height, but by the time they showed up on the screen, they had laid themselves out well enough to hide the problem. Good old Flex invalidation didn't catch whatever changes they did in the background to accomplish this, so I spent several hours refreshing my memory about the finer details of the code of List, ListBase, Box, BoxLayout, UICompoinent, Container, ViewStack, etc.

The fix turned out to be simply setting a "hard" width on the Text component, but of course that makes it infinitely less flexible than if it could have possibly worked with a percentage.

What a fun way to spend an evening!

Re: E4x finding virtual leaf nodes

2009-11-24T18:12:02Z

May be you could do as the following:

var match :XMLList = xml..*.(descendants('activity').length() == 0 &&
name() != null && name() == 'activity');

Panhathai.

cairngorm store example - newbie binding question

2009-11-24T17:59:14Z

Greetings Flex pros:

In the modified cairngorm store (if you're familiar), file
ProductsAndCheckoutControlBar.mxml, there's:

<mx:Image
source="{ getProductThumbnailsButton( model.workflowState ) }"

That function (getProductThumbnailsButton) is not marked as 'bindable'
so how does the binding happen?

The var model is the only thing marked as bindable in the file.

This is the function:
public function getProductThumbnailsButton( enforceBining : Number )
: Class
{
var model : ShopModelLocator = ShopModelLocator.getInstance();
var result : Class = model.assets.thumbOff;

if ( model.workflowState ==
ShopModelLocator.VIEWING_PRODUCTS_IN_THUMBNAILS )
{
result = model.assets.thumbOn;
}

return result;
}

Re: List in second tab of TabNavigator has GIANT itemRenderer

2009-11-24T17:55:58Z

Could this be related to resizeToContent on TabNavigator? Alternatively, it
may be an issue with your dataprovider. Source would be helpful...

On Tue, Nov 24, 2009 at 4:44 PM, Amy <amyblankenship@...> wrote:

>
>
> So, I have a TabNavigator that's populated by a Repeater that draws
> Canvases with a List in each. The List on the first tab draws just
> beautifully, but the List on the second tab gives me one giant itemRenderer
> that has the data for the first item in its dataProvider. If I scroll down
> to the bottom of that itemRenderer and back up, all the itemRenderers draw
> in properly.
>
> When I look at the private rendererArray property of the List in question,
> it has ONE item in it that contains an Array. The first item of that Array
> is typed as my custom Renderer class, and it is 1531 px tall. (The other
> list has a number of arrays that is the same as the # of items in the
> dataProvider and each Array has one element of my itemRenderer type in it).
>
> What I've tried:
> 1) Setting creationPolicy to "all".
> 2) calling validateNow() and validateDisplayList() on the Canvas and the
> List at various times (creationComplete, show, change)
>
> None of this has worked.
>
> I am trying to avoid taking extra time to strip this down to make runnable
> code (it's already eaten over an hour), so if anyone has any ideas with the
> information I've provided, I'd appreciate hearing them.
>
> Thanks;
>
> Amy
>
>
>