Hi Rob,
2 thoughts:
1. The screen is locked while a resizeStack handler is running, so it
is not necessary to use the lock screen command to prevent changes
from being seen. (However, the lockScreen property is not set to true.)
2. Xavier is right: working with the rect would be better to preserve
the topLeft :-)
Best Regards from Paris,
Eric Chatonet.
Le 13 nov. 05 à 18:33, Eric Chatonet a écrit :
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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