RE: [flexcoders] Refreshing graphics in a tree

2008-10-17 Thread Tracy Spratt 
How are you updateing the dataProvider?  If you use the correct API, the
changes should reflect automatically.  If you are using lower level
assignments, then you might need to call itemUpdated for collections.

 

What is your dataprovider?

 

Tracy

 



From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of ben gomez farrell
Sent: Friday, October 17, 2008 12:40 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Refreshing graphics in a tree

 

Hey, I have a tree with a itemRenderer to have a clickable checkbox in 
it. I need to set the checkbox state sometimes through code. 
Everything works great, except the graphics of the checkbox don't update

when it's set through code (mousing over the node will refresh the
graphics)
Is there a way to refresh the graphics of all the nodes through some 
method of the tree? I CAN open and close the nodes to refresh the 
graphics, but it seems really silly, and I have to track whats open and 
closed and make sure it gets back to the same state again.

Thanks!
ben

Re: [flexcoders] Refreshing graphics in a tree

2008-10-17 Thread ben gomez farrell 
My data is an ArrayCollection is set via mytree.dataProvider =  
myArrayCollection;
I have a list as well, and when I do mylist.dataProvider.refresh(), the 
checkboxes on those update just fine.
Unfortunately doing mytree.dataProvider.refresh() doesn't work - and 
only mousing over will update the graphics of the item.
I'll look into itemUpdated though, and see how I can use it, thanks!
ben

Tracy Spratt wrote:

 How are you updateing the dataProvider?  If you use the correct API, 
 the changes should reflect automatically.  If you are using lower 
 level assignments, then you might need to call itemUpdated for 
 collections.

  

 What is your dataprovider?

  

 Tracy

  

 

 *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] 
 *On Behalf Of *ben gomez farrell
 *Sent:* Friday, October 17, 2008 12:40 PM
 *To:* flexcoders@yahoogroups.com
 *Subject:* [flexcoders] Refreshing graphics in a tree

  

 Hey, I have a tree with a itemRenderer to have a clickable checkbox in
 it. I need to set the checkbox state sometimes through code.
 Everything works great, except the graphics of the checkbox don't update
 when it's set through code (mousing over the node will refresh the 
 graphics)
 Is there a way to refresh the graphics of all the nodes through some
 method of the tree? I CAN open and close the nodes to refresh the
 graphics, but it seems really silly, and I have to track whats open and
 closed and make sure it gets back to the same state again.

 Thanks!
 ben

RE: [flexcoders] Refreshing graphics in a tree

2008-10-17 Thread Tracy Spratt 
So how are you updating the dataProvider items with the checkbox state? 

 

Are you using the ArrayCollection API?  If so, then the UI will update
automatically.

 

Note: refresh() applies a sort.  It does not generically refesh the
UI.  Also, if you use the API, it should not be necessary to do anything
else for the list either.

 

Tracy

 



From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of ben gomez farrell
Sent: Friday, October 17, 2008 1:36 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Refreshing graphics in a tree

 

My data is an ArrayCollection is set via mytree.dataProvider = 
myArrayCollection;
I have a list as well, and when I do mylist.dataProvider.refresh(), the 
checkboxes on those update just fine.
Unfortunately doing mytree.dataProvider.refresh() doesn't work - and 
only mousing over will update the graphics of the item.
I'll look into itemUpdated though, and see how I can use it, thanks!
ben

Tracy Spratt wrote:

 How are you updateing the dataProvider? If you use the correct API, 
 the changes should reflect automatically. If you are using lower 
 level assignments, then you might need to call itemUpdated for 
 collections.

 

 What is your dataprovider?

 

 Tracy

 

 --

 *From:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
] 
 *On Behalf Of *ben gomez farrell
 *Sent:* Friday, October 17, 2008 12:40 PM
 *To:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com

 *Subject:* [flexcoders] Refreshing graphics in a tree

 

 Hey, I have a tree with a itemRenderer to have a clickable checkbox in
 it. I need to set the checkbox state sometimes through code.
 Everything works great, except the graphics of the checkbox don't
update
 when it's set through code (mousing over the node will refresh the 
 graphics)
 Is there a way to refresh the graphics of all the nodes through some
 method of the tree? I CAN open and close the nodes to refresh the
 graphics, but it seems really silly, and I have to track whats open
and
 closed and make sure it gets back to the same state again.

 Thanks!
 ben

Re: [flexcoders] Refreshing graphics in a tree

2008-10-17 Thread ben gomez farrell 
I have an arraycollection called groupsdata
groupsdata.getItemAt(f).state = true/false

And then in my itemRenderer, I override like this:

override public function set data(value:Object):void {
super.data = value;
if ( !value ) { return; }
// remove check box from child nodes if present
if ( !value.toplevel  this.getChildByName(checkbox) ) { 
this.removeChild( this.getChildByName(checkbox) ); }
}

override protected function updateDisplayList(unscaledWidth:Number, 
unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
if(super.data)
{
if (super.icon != null)
{
checkBox.x = super.icon.x;
checkBox.y = 12;
super.icon.x = checkBox.x + checkBox.width + 17;
super.label.x = super.icon.x + super.icon.width + 3;
checkBox.selected = super.data.state;
}
else
{
checkBox.x = super.label.x;
checkBox.y = 12;
super.label.x = checkBox.x + checkBox.width + 17;
checkBox.selected = super.data.state;
}
}
}

So it looks like the data object is getting set correctly, but 
updateDisplayList isn't getting called when the data is refreshed - but 
it does get called on mouse over.
thanks again for the help!
ben

Tracy Spratt wrote:

 So how are you updating the dataProvider items with the checkbox state?

 Are you using the ArrayCollection API? If so, then the UI will update 
 automatically.

 Note: refresh() applies a sort. It does not generically “refesh” the 
 UI. Also, if you use the API, it should not be necessary to do 
 anything else for the list either.

 Tracy

 

 *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] 
 *On Behalf Of *ben gomez farrell
 *Sent:* Friday, October 17, 2008 1:36 PM
 *To:* flexcoders@yahoogroups.com
 *Subject:* Re: [flexcoders] Refreshing graphics in a tree

 My data is an ArrayCollection is set via mytree.dataProvider =
 myArrayCollection;
 I have a list as well, and when I do mylist.dataProvider.refresh(), the
 checkboxes on those update just fine.
 Unfortunately doing mytree.dataProvider.refresh() doesn't work - and
 only mousing over will update the graphics of the item.
 I'll look into itemUpdated though, and see how I can use it, thanks!
 ben

 Tracy Spratt wrote:
 
  How are you updateing the dataProvider? If you use the correct API,
  the changes should reflect automatically. If you are using lower
  level assignments, then you might need to call itemUpdated for
  collections.
 
 
 
  What is your dataprovider?
 
 
 
  Tracy
 
 
 
  --
 
  *From:* flexcoders@yahoogroups.com 
 mailto:flexcoders%40yahoogroups.com 
 [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com]
  *On Behalf Of *ben gomez farrell
  *Sent:* Friday, October 17, 2008 12:40 PM
  *To:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
  *Subject:* [flexcoders] Refreshing graphics in a tree
 
 
 
  Hey, I have a tree with a itemRenderer to have a clickable checkbox in
  it. I need to set the checkbox state sometimes through code.
  Everything works great, except the graphics of the checkbox don't update
  when it's set through code (mousing over the node will refresh the
  graphics)
  Is there a way to refresh the graphics of all the nodes through some
  method of the tree? I CAN open and close the nodes to refresh the
  graphics, but it seems really silly, and I have to track whats open and
  closed and make sure it gets back to the same state again.
 
  Thanks!
  ben
 
 

  



--
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RE: [flexcoders] Refreshing graphics in a tree

2008-10-17 Thread Tracy Spratt 
Yes, this:
groupsdata.getItemAt(f).state = true/false
is a low-level assignment directly to the dataprovider item and does not
dispatch the events necessary for the update of the UI.

You can change it to use setItemAt() or you can call itemUpdated(item)
after the assignment.

I am sure both of these use the invalidation mechanism and optimize the
rendering.

I am not sure about refresh(), and that is not the correct usage anyway.

Tracy

-Original Message-
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of ben gomez farrell
Sent: Friday, October 17, 2008 2:01 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Refreshing graphics in a tree

I have an arraycollection called groupsdata
groupsdata.getItemAt(f).state = true/false

And then in my itemRenderer, I override like this:

override public function set data(value:Object):void {
super.data = value;
if ( !value ) { return; }
// remove check box from child nodes if present
if ( !value.toplevel  this.getChildByName(checkbox) ) { 
this.removeChild( this.getChildByName(checkbox) ); }
}

override protected function updateDisplayList(unscaledWidth:Number, 
unscaledHeight:Number):void
{
super.updateDisplayList(unscaledWidth, unscaledHeight);
if(super.data)
{
if (super.icon != null)
{
checkBox.x = super.icon.x;
checkBox.y = 12;
super.icon.x = checkBox.x + checkBox.width + 17;
super.label.x = super.icon.x + super.icon.width + 3;
checkBox.selected = super.data.state;
}
else
{
checkBox.x = super.label.x;
checkBox.y = 12;
super.label.x = checkBox.x + checkBox.width + 17;
checkBox.selected = super.data.state;
}
}
}

So it looks like the data object is getting set correctly, but 
updateDisplayList isn't getting called when the data is refreshed - but 
it does get called on mouse over.
thanks again for the help!
ben

Tracy Spratt wrote:

 So how are you updating the dataProvider items with the checkbox
state?

 Are you using the ArrayCollection API? If so, then the UI will update 
 automatically.

 Note: refresh() applies a sort. It does not generically refesh the 
 UI. Also, if you use the API, it should not be necessary to do 
 anything else for the list either.

 Tracy




 *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED]

 *On Behalf Of *ben gomez farrell
 *Sent:* Friday, October 17, 2008 1:36 PM
 *To:* flexcoders@yahoogroups.com
 *Subject:* Re: [flexcoders] Refreshing graphics in a tree

 My data is an ArrayCollection is set via mytree.dataProvider =
 myArrayCollection;
 I have a list as well, and when I do mylist.dataProvider.refresh(),
the
 checkboxes on those update just fine.
 Unfortunately doing mytree.dataProvider.refresh() doesn't work - and
 only mousing over will update the graphics of the item.
 I'll look into itemUpdated though, and see how I can use it, thanks!
 ben

 Tracy Spratt wrote:
 
  How are you updateing the dataProvider? If you use the correct API,
  the changes should reflect automatically. If you are using lower
  level assignments, then you might need to call itemUpdated for
  collections.
 
 
 
  What is your dataprovider?
 
 
 
  Tracy
 
 
 
  --
 
  *From:* flexcoders@yahoogroups.com 
 mailto:flexcoders%40yahoogroups.com 
 [mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com]
  *On Behalf Of *ben gomez farrell
  *Sent:* Friday, October 17, 2008 12:40 PM
  *To:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
  *Subject:* [flexcoders] Refreshing graphics in a tree
 
 
 
  Hey, I have a tree with a itemRenderer to have a clickable checkbox
in
  it. I need to set the checkbox state sometimes through code.
  Everything works great, except the graphics of the checkbox don't
update
  when it's set through code (mousing over the node will refresh the
  graphics)
  Is there a way to refresh the graphics of all the nodes through some
  method of the tree? I CAN open and close the nodes to refresh the
  graphics, but it seems really silly, and I have to track whats open
and
  closed and make sure it gets back to the same state again.
 
  Thanks!
  ben
 
 

  



--
Flexcoders Mailing List
FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
Alternative FAQ location:
https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-
1e62079f6847
Search Archives:
http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups
Links

Re: [flexcoders] Refreshing graphics in a tree

2008-10-17 Thread ben gomez farrell 
Thanks!  You rock.  I'd never used setItemAt on an ArrayCollection 
because its more verbose to pull the copy the item out and set the 
property you need, then pass it back in - so it never occured to me that 
you had to do that.
Again, thanks, and i'll put the same fix on my list component.
ben

Tracy Spratt wrote:

 Yes, this:
 groupsdata.getItemAt(f).state = true/false
 is a low-level assignment directly to the dataprovider item and does not
 dispatch the events necessary for the update of the UI.

 You can change it to use setItemAt() or you can call itemUpdated(item)
 after the assignment.

 I am sure both of these use the invalidation mechanism and optimize the
 rendering.

 I am not sure about refresh(), and that is not the correct usage anyway.

 Tracy

 -Original Message-
 From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com 
 [mailto:flexcoders@yahoogroups.com 
 mailto:flexcoders%40yahoogroups.com] On
 Behalf Of ben gomez farrell
 Sent: Friday, October 17, 2008 2:01 PM
 To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
 Subject: Re: [flexcoders] Refreshing graphics in a tree

 I have an arraycollection called groupsdata
 groupsdata.getItemAt(f).state = true/false

 And then in my itemRenderer, I override like this:

 override public function set data(value:Object):void {
 super.data = value;
 if ( !value ) { return; }
 // remove check box from child nodes if present
 if ( !value.toplevel  this.getChildByName(checkbox) ) {
 this.removeChild( this.getChildByName(checkbox) ); }
 }

 override protected function updateDisplayList(unscaledWidth:Number,
 unscaledHeight:Number):void
 {
 super.updateDisplayList(unscaledWidth, unscaledHeight);
 if(super.data)
 {
 if (super.icon != null)
 {
 checkBox.x = super.icon.x;
 checkBox.y = 12;
 super.icon.x = checkBox.x + checkBox.width + 17;
 super.label.x = super.icon.x + super.icon.width + 3;
 checkBox.selected = super.data.state;
 }
 else
 {
 checkBox.x = super.label.x;
 checkBox.y = 12;
 super.label.x = checkBox.x + checkBox.width + 17;
 checkBox.selected = super.data.state;
 }
 }
 }

 So it looks like the data object is getting set correctly, but
 updateDisplayList isn't getting called when the data is refreshed - but
 it does get called on mouse over.
 thanks again for the help!
 ben

 Tracy Spratt wrote:
 
  So how are you updating the dataProvider items with the checkbox
 state?
 
  Are you using the ArrayCollection API? If so, then the UI will update
  automatically.
 
  Note: refresh() applies a sort. It does not generically refesh the
  UI. Also, if you use the API, it should not be necessary to do
  anything else for the list either.
 
  Tracy
 
 
 --
 
  *From:* flexcoders@yahoogroups.com 
 mailto:flexcoders%40yahoogroups.com 
 [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com]

  *On Behalf Of *ben gomez farrell
  *Sent:* Friday, October 17, 2008 1:36 PM
  *To:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
  *Subject:* Re: [flexcoders] Refreshing graphics in a tree
 
  My data is an ArrayCollection is set via mytree.dataProvider =
  myArrayCollection;
  I have a list as well, and when I do mylist.dataProvider.refresh(),
 the
  checkboxes on those update just fine.
  Unfortunately doing mytree.dataProvider.refresh() doesn't work - and
  only mousing over will update the graphics of the item.
  I'll look into itemUpdated though, and see how I can use it, thanks!
  ben
 
  Tracy Spratt wrote:
  
   How are you updateing the dataProvider? If you use the correct API,
   the changes should reflect automatically. If you are using lower
   level assignments, then you might need to call itemUpdated for
   collections.
  
  
  
   What is your dataprovider?
  
  
  
   Tracy
  
  
  
   --
  
   *From:* flexcoders@yahoogroups.com 
 mailto:flexcoders%40yahoogroups.com
  mailto:flexcoders%40yahoogroups.com
  [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
 mailto:flexcoders%40yahoogroups.com]
   *On Behalf Of *ben gomez farrell
   *Sent:* Friday, October 17, 2008 12:40 PM
   *To:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
 mailto:flexcoders%40yahoogroups.com
   *Subject:* [flexcoders] Refreshing graphics in a tree
  
  
  
   Hey, I have a tree with a itemRenderer to have a clickable checkbox
 in
   it. I need to set the checkbox state sometimes through code.
   Everything works great, except the graphics of the checkbox don't
 update
   when it's set through code (mousing over the node will refresh the
   graphics)
   Is there a way to refresh the graphics of all the nodes through some
   method of the tree? I CAN open and close the nodes to refresh the
   graphics, but it seems really silly, and I have to track whats open
 and
   closed and make sure it gets back to the same state again.
  
   Thanks!
   ben