Geometry Manager

Peter Haworth pete at mollysrevenge.com
Tue Dec 21 14:29:32 EST 2010


Thanks Damien.  I've downloaded it and will give it a try.

Pete Haworth

On Dec 21, 2010, at 10:47 AM, Damien Girard wrote:

>
> You can also take a look at NativeGeometry that will handle for you  
> all the
> geometry management ;)
>
> http://www.nativesoft.fr/nativegeometry
>
> Kind Regards,
>
> Damien Girard
> NativeSoft, France.
>
> -----Message d'origine-----
> De : use-livecode-bounces at lists.runrev.com
> [mailto:use-livecode-bounces at lists.runrev.com] De la part de Robert
> Brenstein
> Envoyé : mardi 21 décembre 2010 19:36
> À : How to use LiveCode
> Objet : Re: Geometry Manager
>
>
> On 21.12.2010 at 10:13 Uhr -0800 Peter Haworth apparently wrote:
>> Just started trying to figure out the geometry manager.  It appears
>> there is already a default for every control to scale it when the
>> user resizes the window.  Problem is, it doesn't happen.  If I
>> resize my window, all the controls on it that fall completely
>> outside the boundary of the window disappear and any that are
>> partially outside the window are cut off.
>>
>> I'd also add that I tried looking in the LC preferences to see if
>> there was a setting to enable/disable the geometry manager and, with
>> glx2 installed, the only preferences that I could get to were the
>> glx2 ones, not the LC ones.
>>
>> Pete Haworth
>>
>
> As others suggested, rolling your own geometry management is
> recommended for more complex situations. The built-in geometry
> manager works but to a certain complexity only, and when it breaks,
> the time and effort invested in setting it up will got to waste. You
> have indicated that your stack is not simple, so going with the
> built-in manager is not recommended. Others have already hinted that
> geometry management is not that difficult to program. Typically, you
> will have
>
> on preOpenCard
>  -- accommodate user-inflicted resizing which occured on another card
>  myGeomMgr (the width of this cd),(the height of this cd)
> end preOpenCard
>
> on resizeStack pNewWidth,pNewHeight
>   -- accommodate user-inflicted resizing on this card
>   myGeomMgr pNewWidth,pNewHeight
> end resizeStack
>
> on myGeomMgr pNewWidth,pNewHeight
>  -- card level geometry manager
>  constant cMargin = 25
>  # do the magic with bg objects
>  myBgGeomMgr pNewWidth,pNewHeight -- optional
>  # do the magic with card groups
>  myGrpGeomMgr pNewWidth,pNewHeight -- optional
>  # do the magic with cd objects
>  ...
>   -- an example resizing a field
>  set the width of fld kListFld to pNewWidth-2*cMargin
>  set the left of fld kListFld to cMargin
>  ...
> end myGeomMgr
>
> Such a setup allows you to call your geometry management also from
> scripts, and allows you to pass parameters between scripts, if
> needed. Normally, one positions/resizes objects relative to card
> edges and other objects, dealing with width and height of each
> object. The order of positioning/resizing is often critical.
>
> Robert
>
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