thanks jesse this worked like a charm... ;-)
On 6/25/07, Jesse Graupmann [EMAIL PROTECTED] wrote:
Using 4 movieClips; mask, content, handle, scrollbar
handle.onPress = mx.utils.Delegate.create ( this, startScroll );
handle.onRelease = handle.onReleaseOutside = mx.utils.Delegate.create (
this, stopScroll );
function startScroll()
{
var l = scrollbar._x;
var t = scrollbar._y;
var r = scrollbar._x;
var b = scrollbar._y + scrollbar._height - handle._height;
handle.startDrag (false, l, t, r, b );
onEnterFrame = scrollPer;
}
function stopScroll()
{
handle.stopDrag();
}
function scrollPer()
{
var t = scrollbar._y;
var b = scrollbar._y + scrollbar._height - handle._height;
var per = ( handle._y - scrollbar._y ) / ( b-t );
setScrollPer( per );
}
function setScrollPer( per )
{
var t = mask._y;
var b = mask._y + mask._height - content._height;
var dY = ((b - t)*per) + t;
content._y = dY;
}
_
Jesse Graupmann
www.jessegraupmann.com
www.justgooddesign.com/blog/
_
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of O. Fouad
Sent: Monday, June 25, 2007 1:15 AM
To: Flashcoders mailing list
Subject: [Flashcoders] Scroll Bar formula problem
Hi, I can't figure out how I can move a masked MC according to the
position
of the scroll bar.
I tried this code with a scrollbar a mask and MC (the content)
yp = scrollbar._y;
scrollRatio = MC._height/mask._height;
scrollbar._height = mask._height/scrollRatio; //gets the height of the
scrollbar ;
left = scrollbar._x;
top = scrollbar._y
right = scrollbar._x;
bottom = (mask._x + mask._height) - scrollbar._height;
this.onEnterFrame = function () {
//here is the formula i tried
MC._y = (-scrollbar._y+ yp) / scrollRatio; // for sure this is
incorrect!!!
}
scrollbar.onPress = function () {
startDrag(this, false, left,top,right,bottom);
}
scrollbar.onRelease = function () {
this.stopDrag();
}
scrollbar.onReleaseOutside = function () {
this.stopDrag();
}
// end of code
With this code the intial position of the MC isn't like the one it is
supposed to be, and the scrollbar isnt srcolling the MC entirely...
can any ne help???
Best Regards..
--
O.Fouad
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--
O.Fouad
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