[FLEX-18775] BasicLayout: when element's left, top is negative number, size for its parent container isn't correct

• 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: 12/Apr/09 07:56
• Updated: 15/Apr/11 15:15
• Resolved: 29/Apr/09 20:29

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" creationComplete="getSize()">
<fx:Script>
<![CDATA[
public function getSize():void

{ output.text+="parentGroup.width="+parentGroup.width+";height="+parentGroup.height+"\n"; output.text+="parentGroup.pos="+parentGroup.x+";y="+parentGroup.y+"\n"; output.text+="childGroup.width="+childGroup.width+";height="+childGroup.height+"\n"; output.text+="childGroup.pos="+childGroup.x+";y="+childGroup.y+"\n"; output.text+="childBtn.pos="+childBtn.x+";y="+childBtn.y+"\n"; output.text+="childBtn.width="+childBtn.width+";height="+childBtn.height+"\n"; }

]]
>
</fx:Script>
<s:Group id="parentGroup" >
<s:Button id="parentBtn" label="parent" />
<s:Group id="childGroup" >
<s:layout>
<s:BasicLayout/>
</s:layout>
<s:Button id="childBtn" label="child" left="-50" top="-10"/>
<s:Rect id="childBorder">
<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>

<mx:TextArea y="500" id="output" width="500" />
</s:Application>

2. check the size for childBtn and its parent container: childGroup
3.

Actual Results:
parentGroup.width=70;height=21
parentGroup.pos=0;y=0
childGroup.width=20;height=11
childGroup.pos=0;y=0
childBtn.pos=-50;y=-10
childBtn.width=70;height=21

if childGroup should use maximum extents for its children, then it should use childBtn's size. Now it is smaller than its children.

Expected Results:
childGroup.width=70, childGroup.height=21

Workaround (if any):