[FLEX-26503] Button label should be ascent centered when using iconPlacement top and bottom when no icon is present

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK Previous
• Fix Version/s: Adobe Flex SDK 4.5 (Release)
• Component/s: Mobile: Button Skin
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Browser: Other (specify version); Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 20/Jan/11 13:12
• Updated: 10/May/11 13:49
• Resolved: 25/Jan/11 13:20

Description

Steps to reproduce:
1. In a mobile application, use the following code:

<s:HGroup>
<s:Button iconPlacement="left" label="Wj" width="100" height="100"/>
<s:Button iconPlacement="right" label="Wj" width="100" height="100"/>
<s:Button iconPlacement="top" label="Wj" width="100" height="100"/>
<s:Button iconPlacement="bottom" label="Wj" width="100" height="100"/>
</s:HGroup>

2. Run and observe labelDisplay alignment of the last 2 buttons

Actual Results:
"top" iconPlacement shows text constrained to the bottom (SDK-29187)
"bottom" iconPlacement shows text 1px too high.

Expected Results:
When no icon is present, we should degrade to ascent alignment for labels.

Workaround (if any):