Re: [flexcoders] Re: Image source doesn't affect Image size?

[Doug McCune]

I've had a little experience trying to do this, ie zooming into a 
specific point of an image. My only piece of advice is to be aware of 
using validateNow() and possibly callLater(). When you change scaleX or 
scaleY, it updates the width and height, which you then use for 
positioning. It's possible that you'll try to use the new width and 
height before the scale operations have taken effect. So I've had some 
success throwing in a validateNow() call between the scale operations 
and the reading of the new width and height.

Russell Sprague wrote:

thanks for the tip LD. here is the function I set up for resize

private function onResize(evt:ResizeEvent):void{
                var scaleF:Number = this.height/bImage.contentHeight;
                if(this.height<bImage.contentHeight){
                    bImage.scaleY = bImage.scaleX = scaleF;
                }else{
                    bImage.scaleY = bImage.scaleX = 1;
                }
                bImage.x = (this.width/2) - (bImage.contentWidth / 2);
                   bImage.y = (this.height/ 2) - 
(bImage.contentHeight/ 2);
            }
...
<mx:Image id="bImage" source="{imgsrc}" complete="imgLoaded(event)" 
horizontalCenter="0" verticalCenter="0"/>

it works great, will scale the image up to its original size, then 
keeps it centered.

Thanks
Russ

lar.drolet wrote:

Not sure if this will work but what if you placed your image inside of
a Canvas (100% x 100%), which is inside if your VDividedBox. Create a
listener on the Canvas for a ResizeEvent.RESIZE and call a new
function on the event. This call out may be able to stretch your
image to the proper size. Good Luck.

LD

--- In flexcoders@yahoogroups.com 
<mailto:flexcoders%40yahoogroups.com>, Russell Sprague <[EMAIL PROTECTED]> 
wrote:
>
> Great that works,
> any suggestions on how to get the scalled size of the image if I place
> it in the top frame of a VDividedBox, and set the image w and h to 100%
> So the image will scale to fit into the pane when the dividerBar is
dragged.
>
>
> lar.drolet wrote:
> >
> > Try this:
> > trace("iw "+bImage.contentWidth);
> > trace("ih "+bImage.contentHeight);
> >
> > LD