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Date: Thu, 4 Dec 2014 17:27:12 +0000 (UTC)
From: "Lee Burrows (JIRA)" <jira@apache.org>
To: issues@flex.apache.org
Message-ID: <JIRA.12758940.1417539460000.76821.1417714032875@Atlassian.JIRA>
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Subject: [jira] [Commented] (FLEX-34653) Setting applicationDPI
 (autoscaling) on desktop works incorrectly.
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    [ https://issues.apache.org/jira/browse/FLEX-34653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14234379#comment-14234379 ] 

Lee Burrows commented on FLEX-34653:
------------------------------------

I cant help with scaling the application itself - i use the dpi to affect individual skins (font, padding, icon sources etc); the app size/scale doesnt change.

> Setting applicationDPI (autoscaling) on desktop works incorrectly.
> ------------------------------------------------------------------
>
>                 Key: FLEX-34653
>                 URL: https://issues.apache.org/jira/browse/FLEX-34653
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: Layout - General, Skinning
>    Affects Versions: Apache Flex 4.13.0
>         Environment: Windows ( Possible Mac - Not checked ).
>            Reporter: Jason Moore
>              Labels: DPI, Scaling, automatic
>         Attachments: screenshot.png, screenshot2.png
>
>
> The issue occurs when using automatic scaling and setting the application DPI and overriding the runtimeDPIProvider to set the runtimeDPI where it is incorrectly returned from the OS ( On desktop devices for instance ).
> If the two values match ie 1:1 scaling, there is no issue. But if they differ then the application content is scalled correctly , but the stage size is also scaled, incorrect. This leads to the application being clipped when scaling up and excess space when scaling down.. See code excepts to recreate...
> {code:title=ScaleIssue.mxml|borderStyle=solid}
> <?xml version="1.0" encoding="utf-8"?>
> <s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" 
> 					   xmlns:s="library://ns.adobe.com/flex/spark" 
> 					   xmlns:mx="library://ns.adobe.com/flex/mx"
> 					   applicationDPI="160"
> 					   runtimeDPIProvider="myRuntimeDPIProvider">
> 	
> 		<s:Label id="LeftMarker" left="0" verticalCenter="0" text="&lt;--- LEFT" fontSize="24"/>
> 		<s:Label id="MiddleMarker" horizontalCenter="0" verticalCenter="0" text="&gt; &gt; &gt; MIDDLE &lt; &lt; &lt;" fontSize="24"/>
> 		<s:Label id="RightMarker" right="0" verticalCenter="0" text="RIGHT ---&gt;" fontSize="24"/>
> 							 
> </s:WindowedApplication>
> {code}
> {code:title=myRuntimeDPIProvider.as|borderStyle=solid}
> package 
> {
> 	
> 	import mx.core.DPIClassification;
> 	import mx.core.RuntimeDPIProvider;
> 	
> 	public class myRuntimeDPIProvider extends RuntimeDPIProvider
> 	{
> 				
> 		/**
> 		 * Overrride getter function so we can set the dpi manually when running on desktop device
> 		 * This would normally be a bit more sophisticated... 
> 		 * 
> 		 * @return 
> 		 * 
> 		 */		
> 		override public function get runtimeDPI():Number
> 		{			
> 			return DPIClassification.DPI_240;
> 		}
> 		
> 	}
> }
> {code}
> You should see the text labels pointing to the left and right screen edges.. but instead the right hand label is off screen.
> Hope that makes sense.
> J :)


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