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These functions aren't actually used by sortDisplayChildren

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git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@569 ed5b42cb-e716-0410-a449-f6a68f950b19
This commit is contained in:
Tom Conkling
2008-07-11 21:40:25 +00:00
parent 3ab8bde582
commit 5a0b164c3f
1 changed files with 0 additions and 38 deletions
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src/as/com/threerings/flash/DisplayUtil.as
-38
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@@ -244,44 +244,6 @@ public class DisplayUtil
return dumpHierarchy0(top); return dumpHierarchy0(top);
} }
/** Helper function for sortDisplayChildren. */
private static function qsortDisplayChildren (
container :DisplayObjectContainer, left :int, right :int, comp :Function) :void
{
if (right - left > 1) { // containers of size 0 or 1 are already sorted
// arbitrarily choose the element in the middle of the sort list as the pivot element
var pivotIndex :int = left + ((right - left) / 2);
pivotIndex = partitionDisplayChildren(container, left, right, pivotIndex, comp);
qsortDisplayChildren(container, left, pivotIndex - 1, comp);
qsortDisplayChildren(container, pivotIndex + 1, right, comp);
}
}
/** Helper function for qsortDisplayChildren. */
private static function partitionDisplayChildren (
container :DisplayObjectContainer, left :int, right :int, pivotIndex :int, comp :Function) :int
{
var pivotObj :DisplayObject = container.getChildAt(pivotIndex);
container.swapChildrenAt(pivotIndex, right); // move pivot to end
var storeIndex :int = left;
for (var i :int = left; i < right; ++i) {
var thisObj :DisplayObject = container.getChildAt(i);
if (0 > comp(thisObj, pivotObj)) {
container.swapChildrenAt(i, storeIndex);
storeIndex += 1;
}
}
container.swapChildrenAt(storeIndex, right);
return storeIndex;
}
/** /**
* Internal worker method for findInHierarchy. * Internal worker method for findInHierarchy.
*/ */