[jira] [Commented] (FLEX-29004) BitmapImage.scaleMode="zoom" does not always center vertically

["Carlos Rovira (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLEX-29004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13612149#comment-13612149 ] 

Carlos Rovira commented on FLEX-29004:
--------------------------------------

Could not find a way to reproduce this issue. Some code an image could be provided to show the problem
                
> BitmapImage.scaleMode="zoom" does not always center vertically
> --------------------------------------------------------------
>
>                 Key: FLEX-29004
>                 URL: https://issues.apache.org/jira/browse/FLEX-29004
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: Spark: Image
>    Affects Versions: Adobe Flex SDK 4.6 (Release)
>         Environment: Affected OS(s): All OS Platforms
> Affected OS(s): All OS Platforms
> Language Found: English
>            Reporter: Adobe JIRA
>              Labels: EasyFix
>
> Steps to reproduce:
> 1. Set scaleMode="zoom" and fillMode="scale" on a spark Image or BitmapImage
>  
>  Actual Results:
> Some images will not be centered vertically, even when verticalAlign="middle" (the default) 
>  
>  Workaround (if any):
>  I believe the problem is in spark.primitives.BitmapImage updateDisplayList() line #1202
>  if (isZoom)
>  {
>      if (cWidth > unscaledWidth)
>          translateX = translateX + ((unscaledWidth - cWidth) * getHorizontalAlignValue());
>      else if (cHeight > unscaledHeight)
>          translateY = translateY + ((unscaledHeight - cHeight) * getVerticalAlignValue());
>  }
> I believe the "else if" should be just an "if".  Because everywhere else in the updateDisplayList() method where getHorizontalAlignValue() or getVerticalAlignValue() is being called, it is always 2 if statements, never a single if...else statement.
> On my image, these were the values when it would not vertically center correctly:
> b.height = 239
> b.width = 225
> cHeight = 987.8666666666668
> cWidth = 930.0000000000001
> unscaledWidth = 930
> unscaledHeight = 455

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