Thanks Alex. It *does* report a measuredHeight. And it is, indeed, the true height (with no scaling)... so it does seem like it's incorrect.
So what would be the best way to subclass it? Just override and set to the current value of height (or contentHeight, which also appears to be correct)? Or is there something more to it? Thanks again, -Carl --- In [email protected], "Alex Harui" <[EMAIL PROTECTED]> wrote: > > I'd check to see what the Image is reporting as measuredHeight. It > might be wrong and you can subclass and fix it. > > > > ________________________________ > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of carl_steinhilber > Sent: Wednesday, September 12, 2007 11:31 AM > To: [email protected] > Subject: [flexcoders] Re: Issues scrolling a scaled image. Can it be > fixed? > > > > Okay... from the lack of response, I can only assume that it was too > difficult to set up a testbed. ;-) So perhaps providing sample > images will make things easier: > > http://www.thinkhmh.com/_img/flex/red-block-300x100.jpg > <http://www.thinkhmh.com/_img/flex/red-block-300x100.jpg> > http://www.thinkhmh.com/_img/flex/blue-block-300x200.jpg > <http://www.thinkhmh.com/_img/flex/blue-block-300x200.jpg> > http://www.thinkhmh.com/_img/flex/green-block-500x600.jpg > <http://www.thinkhmh.com/_img/flex/green-block-500x600.jpg> > > I've tried everything from setting the height of the image to the > contentHeight, to trying to explicitly invalidate the size... and I'm > about to keel over dead from hitting my head on the desk so many times. > > Does nobody really have any insight? > Thanks again, > -Carl > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> > , "carl_steinhilber" > <carl_steinhilber@> wrote: > > > > I have a fairly simple Flex 2 app that uses a canvas container to > > scroll the display of a child image element. > > > > Consider the following mxml, with three images: 300x100px, 300x200px, > > and 500x600px. > > The canvas has: > > - both scroll policies set to auto (thought eventually, horz will be > > set to off > > - fixed with of 316px (300 + the width of the vertical scrollbar) > > > > The child image has: > > - fixed width of 300px > > - maintainAspectRatio set to true > > > > Loading the 300x100px image into the image component results in no > > scrollbars, as expected. > > > > Loading the 300x200px image into the image component results in a > > vertical scrollbar only, as expected, and when the scrollbar is at the > > bottommost position in the track we see the bottommost edge of the > > image, also as expected. > > > > Loading the 500x600px image into the image component results in a > > vertical scrollbar only, again as expected (since the width of the > > image component is set to 300 and scaling occurs), but now as we > > scroll down it goes well beyond the bottom edge of the image, NOT as > > expected. > > > > I need the scrollbar in this case to allow to user to scroll down only > > as far as the bottom edge of the image (just like with the 300x200px > > image). > > > > Is there something I can do to enforce this rule? > > > > > > <?xml version="1.0" encoding="utf-8"?> > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml > <http://www.adobe.com/2006/mxml> " > > layout="absolute"> > > <mx:Script> > > <![CDATA[ > > private function changePicture(pictNum:int):void{ > > switch (pictNum){ > > case 1: > > imageCroppedImage.source="red-block-300x100.jpg"; > > break; > > case 2: > > imageCroppedImage.source="blue-block-300x200.jpg"; > > break; > > case 3: > > imageCroppedImage.source="green-block-500x600.jpg"; > > break; > > } > > } > > ]]> > > </mx:Script> > > > > <mx:Canvas id="canvasViewPort" width="316" height="100" > > verticalScrollPolicy="auto" horizontalScrollPolicy="auto" x="20" > y="20"> > > <mx:Image id="imageCroppedImage" width="300" > > maintainAspectRatio="true" /> > > </mx:Canvas> > > > > <mx:Button label="Picture 1 (300x100)" click="changePicture(1)" > > x="20" y="150" /> > > <mx:Button label="Picture 2 (300x200)" click="changePicture(2)" > > x="20" y="185" /> > > <mx:Button label="Picture 3 (500x600)" click="changePicture(3)" > > x="20" y="220" /> > > </mx:Application> > > > > > > Thanks in advance! > > -Carl > > >
