[FLEX-18638] BasicLayout: child isn't positioned correctly when bottom is set among with top, verticalCenter when group has no explicite width/height set

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: Adobe Flex SDK Previous
• Component/s: Spark: BasicLayout
• Environment: Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 02/Apr/09 08:08
• Updated: 15/Apr/11 15:18
• Resolved: 05/May/09 13:28

Description

Steps to reproduce:
1. run following code:

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/halo"
minWidth="1024" minHeight="768">

<s:Group id="parentGroup" >

<mx:Label x="300" y="200" top="200" text="parent" verticalCenter="0" />

<s:Group >
<s:layout>
<s:BasicLayout/>
</s:layout>
<mx:Label x="300" y="200" text="child" top="100" bottom="50" verticalCenter="0" />
<s:Rect width="300" height="300" >
<s:stroke>
<s:SolidColorStroke color="0x00FF00"/>
</s:stroke>
</s:Rect>
</s:Group>
<s:Rect id="border" left="0" right="0" top="0" bottom="0">
<s:stroke>
<s:SolidColorStroke color="0xFF0000"/>
</s:stroke>
</s:Rect>
</s:Group>
</s:Application>

2. check position for "child" label
3.

Actual Results:

the "child" label is placed high.

Expected Results:

if remove "bottom="50" above, then "child" is placed in verticalCenter. It means "top" constraint is ignored with verticalCenter set. If that is the case, then with "bottom="50" above, bottom should be ignored as well, the child.y=(parent.height-child.height)/2+verticalCenter=(300-31)/2+0=135, now y=75

Workaround (if any):