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https://issues.apache.org/jira/browse/FLEX-11275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Kessler reassigned FLEX-11275:
-----------------------------------
Assignee: Mark Kessler
> When an Image control is sized to a size smaller than the bitmap's
> dimensions, querying the height and with does not give the correct result
> --------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLEX-11275
> URL: https://issues.apache.org/jira/browse/FLEX-11275
> Project: Apache Flex
> Issue Type: Bug
> Components: mx: Image
> Affects Versions: Adobe Flex SDK 2.0 (Release)
> Environment: Affected OS(s): All OS Platforms
> Affected OS(s): All OS Platforms
> Language Found: English
> Reporter: Adobe JIRA
> Assignee: Mark Kessler
> Attachments: test.png
>
>
> This problem is essentially encountered by anyone showing thumbnails of
> images which is very common. In such a situation, one generally determines
> either the height or width at which to display images expecting the
> <mx:image> control to adjust the other dimension appropriately. Which it
> does. However, when you query the other dimension you get the original value
> (unscaled). One ends up having to calculate the resulting dimension and
> setting it to be the value of the height or width as the case may be. Quite
> cumbersome really.
> Essentially, try drawing a border around scaled images to see the issue.
> Steps to reproduce:
> 1. Place and <mx:image> control and size it to a size smaller than the
> original size of a bitmap
> 2. At run time query the height and width.
> 3.
>
> Actual Results:
> The returned values of the height and with are the height and with of the
> original bitmap
>
> Expected Results:
> Since the <mx:image> control scales proportionately frequently one set
> either the height or the width (and not both) to fit sensibly in the UI. But
> one doesn't know the resulting height or width (as the case may be) after
> scaling. I would expect the image control
>
> Workaround (if any):
> The workaround is way too complex to be called a work around.
> // This is the image complete event handler.
> private function onImageComplete(event:Event):void {
> if (!isNaN(image.explicitHeight) && image.explicitHeight != 0) {
> image.width = image.contentWidth - image.contentWidth /
> (image.contentHeight / (image.contentHeight - image.height));
> }
> else if (image.explicitWidth != 0) {
> image.height = image.contentHeight - image.contentHeight /
> (image.contentWidth / (image.contentWidth - image.width));
> }
> dispatchEvent(new Event(EVENT_COMPLETE));
> }
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