<Swing Dev> Review Request JDK-8159168 [hidpi] Window.setShape() works incorrectly on HiDPI

Alexandr Scherbatiy alexandr.scherbatiy at oracle.com
Tue Jul 5 06:07:31 UTC 2016


On 7/5/2016 8:25 AM, Rajeev Chamyal wrote:
>
> Hello Alexandr,
>
> Thanks for the review.
>
> As per windows specification X & Y scale are always equal that’s why I 
> have put scaleX == scaleY check.
>
> But it may change in future so I have removed this check.
>
> http://cr.openjdk.java.net/~rchamyal/8159168/webrev.01/ 
> <http://cr.openjdk.java.net/%7Erchamyal/8159168/webrev.01/>
>

1135             if (scaleX != 1 && scaleY != 1) {

   It is better to use 'or' operator because the shape should be scaled 
when on of the scales is differ from 1.

Thanks,
Alexandr.

> Regards,
>
> Rajeev Chamyal
>
> *From:*Alexandr Scherbatiy
> *Sent:* 04 July 2016 18:03
> *To:* Rajeev Chamyal; swing-dev at openjdk.java.net; Sergey Bylokhov
> *Subject:* Re: <Swing Dev> Review Request JDK-8159168 [hidpi] 
> Window.setShape() works incorrectly on HiDPI
>
> On 7/4/2016 3:09 PM, Rajeev Chamyal wrote:
>
>     Hello All,
>
>     Please review the following webrev.
>
>     Bug: https://bugs.openjdk.java.net/browse/JDK-8159168
>
>     Webrev: http://cr.openjdk.java.net/~rchamyal/8159168/webrev.00/
>     <http://cr.openjdk.java.net/%7Erchamyal/8159168/webrev.00/>
>
>     Issue: In HiDPI screen shape set through window::setShape API is
>     not scaled based on system scale.
>
>     Fix:. Updated the WComponentPeer::applyShape to update shape based
>     on system scale.
>
> 1131 double scaleX = winGraphicsConfig.getDefaultTransform().getScaleX();
> 1132             double scaleY = 
> winGraphicsConfig.getDefaultTransform().getScaleY();
>
>  The getDefaultTransform() is called twice which leads that 
> AffineTransform object is created two times
> 1133             if (scaleX != 1 && scaleY != 1 && scaleX == scaleY) {
>
>    Is the check scaleX == scaleY really necessary here?
>
>    Is it possible to make the test automated? Just run it with option 
> "@run main/othervm -Dsun.java2d.uiScale=2 TestName" and check the area 
> where the shape is drawn?
>
>   Thanks,
>   Alexandr.
>
>     Regards,
>
>     Rajeev Chamyal
>

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