[FLEX-26662] [localfix] Rounding error in measured text causes truncation in Button label

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK 4.5 (Release)
• 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: 02/Feb/11 17:00
• Updated: 10/May/11 13:33
• Resolved: 03/Feb/11 16:12

Description

Steps to reproduce:
1. Run the following application in ADL at 240dpi

<?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" applicationDPI="160">
<!-- RUN AT 240PPI -->
<fx:Script>
<![CDATA[
private function swap(event:MouseEvent):void

{ b.label = (b.label == 'explicit') ? 'constraint' : 'explicit'; }

]]
>
</fx:Script>

<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>

<s:layout>
<s:VerticalLayout/>
</s:layout>

<s:ActionBar width="100%">
<s:actionContent>
<s:Button id="b" label="explicit" click="swap(event)"/>
</s:actionContent>
</s:ActionBar>
</s:Application>

2. Press the button twice
3. Observe button label

Actual Results:
"explicit" text is not truncated initially. Pressing the button twice results in truncation. There's a floating point issue when measuring that manifests as a truncated label.

Expected Results:
No truncation.

Workaround (if any):