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Added scrollToKey().

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git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@793 ed5b42cb-e716-0410-a449-f6a68f950b19
This commit is contained in:
Ray Greenwell
2009-03-24 22:24:02 +00:00
parent 0a4a690728
commit 6e123c3c8b
1 changed files with 15 additions and 4 deletions
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src/as/com/threerings/flex/DSetList.as
+15 -4
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@@ -7,6 +7,7 @@ import mx.core.IFactory;
import mx.core.ScrollPolicy;
import mx.collections.ArrayCollection;
import mx.collections.IList;
import mx.collections.Sort;
import mx.controls.List;
@@ -66,6 +67,15 @@ public class DSetList extends List
_data.refresh();
}
/**
* Scroll so that the entry with the specified key is visible.
*/
public function scrollToKey (key :Object) :Boolean
{
var scrollIdx :int = findKeyIndex(key, false);
return (scrollIdx == -1) ? false : scrollToIndex(scrollIdx);
}
/**
* Initialize listening on the specified object.
*
@@ -148,12 +158,13 @@ public class DSetList extends List
}
/**
* Find the index of the specified entry key from the raw list.
* Find the index of the specified entry key from the raw or filtered list.
*/
protected function findKeyIndex (key :Object) :int
protected function findKeyIndex (key :Object, raw :Boolean = true) :int
{
for (var ii :int = 0; ii < _data.list.length; ii++) {
if (Util.equals(key, DSet_Entry(_data.list.getItemAt(ii)).getKey())) {
var list :IList = raw ? _data.list : _data;
for (var ii :int = 0; ii < list.length; ii++) {
if (Util.equals(key, DSet_Entry(list.getItemAt(ii)).getKey())) {
return ii;
}
}