Resizing During Resizing

[Eric Chatonet]

Hi Rob,

just add an "exit to top":

on resizeStack newWidth,newHeight,oldWidth,oldHeight
   beep
   lock screen
   put abs(newWidth-oldWidth) into widthDifference
   put abs(newHeight-oldHeight) into heightDifference
   lock messages
   if widthDifference >= heightDifference then set the height of this  
stack to trunc((newWidth/3)*2)
   else set the width of this stack to trunc((newHeight/2)*3)

   exit to top

   unlock messages
   unlock screen
end resizeStack

Hope this helps :-)
Best Regards from Paris,

Eric Chatonet.

PS. Same behaviour with 2.6.1 here.

Le 13 nov. 05 à 17:19, Rob Cozens a écrit :

> Hi All,
>
> I want to be able to change the height or width of a stack from  
> inside the stack's resizeStack handler without triggering a second  
> resizeStack message.
>
> I have created a portfolio of photographs of my wife's art.  All  
> photos have a 3 (w) to 2 (h) orientation/proportion and the stack  
> layout is designed to retain same.  In resizeStack, I check to see  
> whether the user has resized the height to a greater degree than  
> the width or vice versa, and then change the other dimension to  
> retain the 3 to 2 proportion.  Here is a test handler based on my  
> handler:
>
> on resizeStack newWidth,newHeight,oldWidth,oldHeight
>   beep
>   lock screen
>   put abs(newWidth-oldWidth) into widthDifference
>   put abs(newHeight-oldHeight) into heightDifference
>   lock messages
>   if widthDifference >= heightDifference then set the height of  
> this stack to trunc((newWidth/3)*2)
>   else set the width of this stack to trunc((newHeight/2)*3)
>   unlock messages
>   unlock screen
> end resizeStack
>
> When I run this handler I hear two beeps, indicating that a  
> resizeStack message is sent when a stack dimension is changed, even  
> though I have locked messages.   I suppose I could add logic to set  
> and check a local variable; but I'm wondering--
>
> 	* Does this happen in 2.6.1?
> 	* Why does the second resizeStack message get sent when messages  
> are locked?
> 	* Why doesn't the logic loop recursively (ie: why doesn't the  
> second resizeStack message trigger a third)?
>
> Rob Cozens CCW
> Serendipity Software Company
>
> "And I, which was two fooles, do so grow three;
>  Who are a little wise, the best fooles bee."
>
>  from "The Triple Foole" by John Donne (1572-1631)
>
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