Paul, I've been working on using an scroll bar. The only issue I have with this is that it reaches the bottom of the scroll area when the scroll bar is about half way down. See the following example:
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="absolute" creationComplete="init();"> <mx:Script> <![CDATA[ import mx.events.ScrollEvent; private function init():void { myCanvas.verticalScrollPosition = vBar.maxScrollPosition; myCanvas.verticalScrollPosition = vBar.minScrollPosition; } private function myScroll(event:ScrollEvent):void { myCanvas.verticalScrollPosition = event.currentTarget.scrollPosition; } ]]> </mx:Script> <mx:Canvas width="100%" height="100%"> <mx:Canvas id="myCanvas" left="0" top="0" right="15" bottom="0" verticalScrollPolicy="off" horizontalScrollPolicy="off"> <mx:Button label="Button 1" left="10" top="0"/> <mx:Button label="Button 2" left="10" top="250"/> <mx:Button label="Button 3" left="10" top="1250"/> <mx:Button y="2500" label="Button 4" left="10" includeInLayout="false"/> </mx:Canvas> <mx:VScrollBar id="vBar" minScrollPosition="250" maxScrollPosition="1250" lineScrollSize="35" pageScrollSize="50" repeatDelay="1000" repeatInterval="500" scrollPosition="250" scroll="myScroll(event);" right="0" top="0" bottom="0"/> </mx:Canvas> </mx:Application> JF --- In [email protected], "Paul Andrews" <p...@...> wrote: > > ----- Original Message ----- > From: "jmfillman" <jmfill...@...> > To: <[email protected]> > Sent: Tuesday, December 23, 2008 11:22 PM > Subject: [flexcoders] Re: Display only part of a canvas?? > > > > Hi Tracy, > > > > This may work, I'd have to try it, and may be my best option. I was > > hoping to be able to reset the scrollBar so that it appears to the > > user that they are seeing everything. > > Why can't you just suppress the scrollbar and add one of your own? You can > set it to whatever you like then. > > Paul > > > > > JF > > --- In [email protected], "Tracy Spratt" <tspratt@> wrote: > >> > >> Just thinking aloud, but supposed you intercepted the scroll events > > and > >> calculated whether the user was allowed to move that way and apply > >> preventDefault if not? > >> > >> Tracy > >> > >> > >> > >> ________________________________ > >> > >> From: [email protected] > > [mailto:[email protected]] On > >> Behalf Of jmfillman > >> Sent: Tuesday, December 23, 2008 4:07 PM > >> To: [email protected] > >> Subject: [flexcoders] Re: Display only part of a canvas?? > >> > >> > >> > >> I appreciate the responses, but I do not believe this will > > accomplish > >> what I need. Masking is the closest so far, but the scroll bars > >> create a problem. > >> > >> Simply making items hidden, does hide viewable items, but leaves > > the > >> container with a lot of blank space. > >> > >> Essentially, I want to override the index or whatever values the > >> scrollbar uses to determine the top and bottom of the container, > > and > >> set my own values. > >> > >> --- In [email protected] <mailto:flexcoders% > > 40yahoogroups.com> > >> , "Manish Jethani" > >> <manish.jethani@> wrote: > >> > > >> > On Tue, Dec 23, 2008 at 5:41 AM, jmfillman <jmfillman@> wrote: > >> > > >> > > I have a Canvas that with a height of 3000. For some users, I > >> only want > >> > > them to be able to view and scroll a portion of the height of > > the > >> > > canvas, say 1200-2200. It can vary from user to user, and some > >> will > >> > > need to see the entire height. I'm at a loss as to whether or > > not > >> this > >> > > is even possible, and if so, how. > >> > > >> > Suppose you have a canvas with 5 items. > >> > > >> > <Canvas> > >> > <Item /> > >> > <Item /> > >> > <Item /> > >> > <Item /> > >> > <Item /> > >> > </Canvas> > >> > > >> > You want some users to see only the first 3, is that correct? If > >> yes, > >> > you can just set 'visible' to false and 'includeInLayout' to > > false > >> on > >> > the items that you want to hide, and that should take care of it. > >> > > >> > -- > >> > manishjethani.com > >> > > >> > > > > > > > > ------------------------------------ > > > > -- > > Flexcoders Mailing List > > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > > Alternative FAQ location: > > https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469- 446f-b4cf-1e62079f6847 > > Search Archives: > > http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups > > Links > > > > > > >
