Fwd: scaling and positioning proportionally an object at the same time

[Christian Langers]

Merci beaucoup Eric !

Well I found a way to combine the GM and scripting (I read your  
tutorial...)

Well, I think the GM is good enough for minor use / basic things...  
and scripting stays the best way...



Greets,

Christian




Début du message réexpédié :

> De : Eric Chatonet <eric.chatonet at sosmartsoftware.com>
> Date : 18 avril 2007 15:47:47 GMT+02:00
> À : How to use Revolution <use-revolution at lists.runrev.com>
> Objet : Rép : scaling and positioning proportionally an object at  
> the same time
> Répondre à : How to use Revolution <use-revolution at lists.runrev.com>
>
> Bonjour Christian,
>
> Le 18 avr. 07 à 15:18, Christian Langers a écrit :
>
>> Hello,
>>
>> I try since hours to do this :
>>
>> I have an image (photo) on a stack which scales to the right and  
>> down on resizing the stack (via Geometry Manager); I have a  
>> graphic (rectangle) placed at a precise location on the image (the  
>> user selects a portion of the image to hilite something on it);
>>
>> Now I want that when the user resizes the window the graphic  
>> scales and moves (up/down) proportionaly to the image , so that  
>> the rectangle grows and shrinks with the image hiliting always the  
>> same portion of the image (e.g. an eye of a face); I hope you  
>> follow (it's difficult to explain this in English)...
>>
>> I tried to use the GM in REv, but ...brrr... the graphic jumps  
>> away from its original position when resizing...
>> So... please ! Heeeelp... This is getting me on my nerves ;-)
>> Thanks for any suggestions or solutions...
>>
>> Christian
>> from Luxembourg
>
> Actually don't trust the Geometry Manager and prefer to write your  
> own routines in a resizeStack handler ;-)
> Here is, for instance, an excerpt from such a handler:
>
> on resizeStack pNewW,pNewH,pOldW,pOldH -- note params passed by  
> Rev ;-)
>   global gPrefs
>   -----
>   if gPrefs["uAdds"] then ProportionalWResize the long name of img  
> "ToolbarShadow",pNewW,114
>   else ProportionalWResize the long name of img  
> "ToolbarShadow",pNewW,0
>   pass resizeStack
> end resizeStack
>
> And:
>
> on ProportionalWResize pObj,pNewW,pDelta
>   local tRect
>   -----
>   put the rect of pObj into tRect
>   put pNewW - pDelta into item 3 of tRect
>   set the rect of pObj to tRect
> end ProportionalWResize
>
> Of course, the above example is simple and, sometimes, it might  
> appear more tricky...
> But actually, Rev allows to script any complex resizing in any  
> case ;-)
> Good luck!
>
> Best regards from Paris,
> Eric Chatonet.
> ----------------------------------------------------------------
> http://www.sosmartsoftware.com/
> eric.chatonet at sosmartsoftware.com/
> ----------------------------------------------------------------
>
>
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