Re: [Dynapi-Dev] DynLayer and setClass()

[Raymond I. <xw...@ya...>]

--- Kevin <ke...@ke...> wrote:
> 
> "Raymond Irving" <xw...@ya...> wrote:
> 
> > Kevin,
> > 
> > Proposed DynLayer functions for use within
> > assignElement(): 
> > 
> > p.getElmWidth = function(){ 
> > var w = parseInt(this.css.width);
> > if(isNaN(w)) w=this.getContentWidth();
> > return w;
> > };
> > p.getElmHeight = function(){
> > var h = parseInt(this.css.height);
> > if(isNaN(h)) h=this.getContentWidth();
> > return h;
> > };
> 
> Not sure if it will work. Is getContentWidth/Height
> ever called and on what browsers did you see this?

Whenever w==null and h==null then
getContenWidth/Height is called to set the size of the
layer.
 
> I had come up with a cross browser version:
> 
> p.getElmWidth=function() {
>   var r=this.elm, s=this.css;
>   if(r) { s=s.clip||s; return
> s.width||r.offsetWidth; }
>   else return null;
> };
> p.getElmHeight=function() {
>   var r=this.elm, s=this.css;
>   if(r) { s=s.clip||s; return
> s.height||r.offsetHeight; }
>   else return null;
> };

Will the above get the width of the layer when it's
defined inside the style sheet?

--
Raymond Irving

> Unfortunately after HTML has been written the
> element has style anyway. So testing for no style
> value didn't work for me. We need something else.
> Perhaps:
> lyr=new DynL:ayer('a',100,100);
> setClass('redbg','auto');
> will pull bgColor from the class 'redbg' and 'auto'
> to
> force getContentWidth/Height() (offsetWidth/Height)
> rather than looking at element style (width/height)
> which may contain valid size of 'a' or dynlayer size
> defined in class 'redbg'.
> 
> -
> Kevin
> 
> > while DynLayer._assignElement will now use:
> > 
> > if (dlyr.html!=null && dlyr.html!='' &&
> (dlyr.w==null
> > || dlyr.h==null)) {
> > var cw = (dlyr.w==null)? dlyr.getElmWidth() :
> null;
> > var ch = (dlyr.h==null)? dlyr.getElmHeight() :
> null;
> > dlyr.setSize(cw,ch);
> > }
> > 
> > 
> > Please run a performance test on this to see if it
> is
> > ok.
> > 
> > 
> > Any comments, suggestions?
> > 
> > 
> > --
> > Raymond Irving
> > 
> > 
> > --- Kevin <ke...@ke...> wrote:
> > 
> > > > "Raymond Irving" <xw...@ya...> wrote:
> > > > 
> > > > > Hi,
> > > > > 
> > > > > 
> > > > > When using setClass('whatever',true) you
> should
> > > always
> > > > > create dynlayer with width and height or 0.
> This
> > > is to
> > > > > prevent dynlayer from attempting to autosize
> the
> > > > > layer. 
> > > 
> > > I disagree the w & h should be defaulted to null
> in
> > > the
> > > constructor and not be touched until
> _assignElement.
> > > 
> > > > > It was suggested once that we get the width
> and
> > > the
> > > > > height from the style of the layer, but that
> > > might not
> > > > > be a good thing to do as style sheets can
> use
> > > > > different values for width and height:
> > > > > 
> > > > > width:100px; height:100px;
> > > > > width:100%; height:100%;
> > > > > width:100cm; height:100cm;
> > >  
> > > A user/developer knowing that pixels are
> supported
> > > would use px in style sheets as in the same way
> > > lyr=new DynLayer('z',10,10,'100%',100%')
> > > wouldn't be expected to work in any case.
> > >  
> > > > > If a layer's style width inside the style
> sheet
> > > was
> > > > > set to 100% then the dynlayer would report
> the
> > > wrong
> > > > > size, correct?
> > > > > 
> > > > > Any thoughts on this? Should we document
> that
> > > users
> > > > > set the width and height to 0,0 when using
> style
> > > > > sheets? Or should we enable
> > > DynLayer.assignElement()
> > > > > to first check for a valid css width/height
> > > before
> > > > > calling getContentWidth/Height? 
> > >  
> > > Defaults as explained above. Then in
> assignElement:
> > > 1) call new methods getElmWidth() &
> getElmHeight()
> > > to satisfy the style sheet requirement
> > > then if the user/developer hasn't specified a
> style
> > > object
> > > or class
> > > 2) call getContentWidth() & getContentHeight()
> to
> > > satisfy
> > > the auto size requirement (single character
> > > DynLayers etc)
> > >  
> > > -
> > > Kevin.
> > >  
> > > > > 
> > > > > --
> > > > > Raymond Irving
> > > > > 
> > > > >
> > >
> __________________________________________________
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> > > > >
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> >
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