Hi Martin,
Thanks for helping me correct this (stupid) mistake. By the way, now that I
read correctly, I noticed using initFonts() also works provided I use
deferredInit. I have chosen this approach which seems a bit better.
Cheers
Jean-Noel
On Thu, May 14, 2009 at 9:44 AM, Martin Wittemann <[email protected]
> wrote:
> Hello,
> i see the problem. Its not the setting of the value, its the reading. The
> properties can not be accessed by just adding its name after the this.
>
> this.fonts
>
> does not work because the property is not stored there. You have to use the
> getter to access the property.
>
> this.debug(this.getFonts());
>
> should work for you.
>
> Best,
> Martin
>
>
> Am 13.05.2009 um 19:05 schrieb Jean-Noël Rivasseau:
>
> Hi Martin,
>
> Thanks for the reply - this did not work though. So here is my code:
>
> properties:
> {
> fonts: {"init": null, "event": "changeFonts", "check":
> "qx.data.Array", "apply": "_applyGeneric"}
> },
>
> construct: function()
> {
> this.base(arguments);
> this.setFonts(new qx.data.Array(]"ara", "bibi"]));
> this.debug(this.fonts);
> },
>
> I understood why it should not be in the init part, since it will result in
> an Array instance shared by all the instances. However using the setter in
> the constructor does not work: I still get undefined on the next line.
>
> Also, why initFonts() should not be used in this case, can you explain ?
>
> Jean-Noel
>
>
> On Wed, May 13, 2009 at 2:18 PM, Martin Wittemann <
> [email protected]> wrote:
>
>> Hello Jean-Noel,
>>
>> you have to use a mix of attempt one and three.
>>
>> First you have to define the property itself. Therefore you have to
>> add the property name to the properties definition like you did in
>> point 1. The only thing you should not do is to add the array as the
>> init value. This code will only be run once while defining the class
>> so the defined array will be the same for every instance of the class.
>> So you better initialize the property with null.
>> You should additionally define a event for that property. this event
>> is important to get the data binding working. Take a look at the
>> following code to see how it could look:
>>
>> myProperty : {
>> check : "qx.data.Array",
>> init : null,
>> event : "changeMyProperty"
>> }
>>
>> Now you have set up the property. To initialize it, you should use the
>> code mentioned in point three.
>> Use the setter of the property and set the desired initial value.
>>
>> this.setMyProperty(new qx.data.Array("a", "b"));
>>
>> After that, everything is prepared for the data binding. :)
>>
>> Best,
>> Martin
>>
>>
>> Am 13.05.2009 um 11:46 schrieb Jean-Noël Rivasseau:
>>
>> > Hello,
>> >
>> > today I tried to define a qx.data.Array property on one of my class
>> > (to use data binding with a List on it). I could not manage to
>> > understand how to properly initialize this property to make it work.
>> >
>> > I tried several things:
>> >
>> > 1) Defining the property as: myProperty: { init: new
>> > qx.data.Array(["hello"]), check: "qx.data.Array" } (I am not
>> > surprised this one did not work)
>> >
>> > 2) Calling this.initMyProperty(new qx.data.Array(["hello"]) when in
>> > the constructor. Also used deferredInit on the property
>> > configuration, but did not help.
>> >
>> > 3) Calling this.setMyProperty(new qx.data.Array(["hello"]) when in
>> > the constructor.
>> >
>> > In any case, my property is always undefined. It works if I do
>> > directly in the constructor:
>> >
>> > this.fonts = new qx.data.Array(["ara", "bibi"]);
>> >
>> > but in this case I am bypassing the whole purpose of init, right?
>> >
>> > How should I do it properly ?
>> >
>> > Thanks
>> >
>> > Jean-Noel
>> >
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>
>
> --
> Jean-Noël Rivasseau
> Shoopz - Lead Developer / Responsable Développement
> http://www.shoopz.com/
>
> ------------------------------------------------------------------------------
> The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your
> production scanning environment may not be a perfect world - but thanks to
> Kodak, there's a perfect scanner to get the job done! With the NEW KODAK
> i700
> Series Scanner you'll get full speed at 300 dpi even with all image
> processing features enabled.
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>
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> ------------------------------------------------------------------------------
> The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your
> production scanning environment may not be a perfect world - but thanks to
> Kodak, there's a perfect scanner to get the job done! With the NEW KODAK
> i700
> Series Scanner you'll get full speed at 300 dpi even with all image
> processing features enabled. http://p.sf.net/sfu/kodak-com
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The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your
production scanning environment may not be a perfect world - but thanks to
Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700
Series Scanner you'll get full speed at 300 dpi even with all image
processing features enabled. http://p.sf.net/sfu/kodak-com
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