[FLEX-24977] [FCLayout] Constraints on objects rotated exactly 45 degrees give unexpected results.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK Previous
• Component/s: Spark: Layout
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 19/Aug/10 17:48
• Updated: 10/May/11 13:41
• Resolved: 06/Nov/10 22:01

Description

Steps to reproduce:
1.Run the following app:

<?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"
width="800" height="600" backgroundColor="#FFFFFF">

<s:Rect left="362" right="222" top="125" bottom="257" rotation="45">
<s:stroke>
<s:SolidColorStroke color="#ff0000"/>
</s:stroke>
</s:Rect>

</s:Application>

Actual Results: the rect appears as a diagonal line

Expected Results: the rect appears as a square diamond

What's happening: because the rotation is exactly 45 degrees, there are an infinite number of ways to meet the constraints. The SDK is choosing a way that minimizes the area of the rect. instead, it should maximize the area.

Workaround: Don't use 45 degrees.

I've discussed this with Evtim.