Handling resize event ...

Question

I have a class that extends Panel. I add some buttons
(Min/Restore/Max/Close ... top right corner,etc) to the chrome
using rawChildren.addChild. I'd like to restrict the window to
never be allowed to get to a height less than the height of the
buttons or a width less than the combined width of the buttons
(this is a generalization, I've included logic to account for
borders, etc). Nevertheless, I've tried countless approaches ...
then I tried listening for a resize event ...
//in constructor
this.addEventListener("resize", myResizeHandler);
//handler
private function myResizeHandler(event:ResizeEvent):void{
width = Math.max(someMinimumCalculatedWidth(), width);
height = Math.max(someMinimumCalculatedHeight(), height);
As shown ... within the event handler, I set width/height
properties of the panel. In the case where they are different than
current width/height, it expected it would trigger yet another
resize event .... and I expected to get into some kind of nutty
event loop (as you can see ... I'm in that ** I'll try anything
...** mode). Surprisingly ... it worked properly. There doesn't
seem to be a resize event triggered when I set the width/height to
values different than they were before entering the handler? I've
perused the Panel/UIComponent source and everything I see leads me
to believe another resize event would be triggered.
So ... as strange as it sounds, I'd like to understand why
this works :-) I can't bring myself to just move on without knowing
why another resize event isn't dispatched and why I don't end right
back up in myResizeHandler ...

Answer 1

"AJC5327" <[email protected]> wrote in
message
news:[email protected]...
>I have a class that extends Panel. I add some buttons
>(Min/Restore/Max/Close
> ... top right corner,etc) to the chrome using
rawChildren.addChild. I'd
> like to
> restrict the window to never be allowed to get to a
height less than the
> height
> of the buttons or a width less than the combined width
of the buttons
> (this is
> a generalization, I've included logic to account for
borders, etc).
> Nevertheless, I've tried countless approaches ... then I
tried listening
> for a
> resize event ...
>
> //in constructor
> this.addEventListener("resize", myResizeHandler);
>
> //handler
> private function
myResizeHandler(event:ResizeEvent):void{
> width = Math.max(someMinimumCalculatedWidth(), width);
> height = Math.max(someMinimumCalculatedHeight(),
height);
> }
>
> As shown ... within the event handler, I set
width/height properties of
> the
> panel. In the case where they are different than current
width/height, it
> expected it would trigger yet another resize event ....
and I expected to
> get
> into some kind of nutty event loop (as you can see ...
I'm in that ** I'll
> try
> anything ...** mode). Surprisingly ... it worked
properly. There doesn't
> seem
> to be a resize event triggered when I set the
width/height to values
> different
> than they were before entering the handler? I've perused
the
> Panel/UIComponent
> source and everything I see leads me to believe another
resize event would
> be
> triggered.
>
> So ... as strange as it sounds, I'd like to understand
why this works :-)
> I
> can't bring myself to just move on without knowing why
another resize
> event
> isn't dispatched and why I don't end right back up in
myResizeHandler ...
A lot of times I find I have to go several classes up the
inheritence chain
to find where something lives. A shortcut to this is to find
the public
class extends statement and click whatever it extends. Press
F3.
HTH;
Amy