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https://issues.apache.org/jira/browse/NETBEANS-3468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17062106#comment-17062106
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Eirik Bakke edited comment on NETBEANS-3468 at 3/18/20, 10:51 PM:
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>From mailing list discussions, it seems that NetBeans will continue to be
>built on Java 8 for the forseeable future. The java.lang.reflect.Proxy
>interface could be used to implement MultiResolutionImage by reflection, but
>it does not seem possible to simultaneously have the proxy object extend from
>Image (or BufferedImage), which is required here.
A better approach, for backwards-compatibility with Java 8, is to implement
NETBEANS-3469, having ImageUtilities write out pre-rendered PNG files at 1x and
2x resolution into the NetBeans cache directory, following the prescribed MacOS
naming convention (e.g. "icon.png" and "i...@2x.png"), and then using
Toolkit.getImage(URL) to produce the actual Image object (on MacOS only). This
will produce retina-capable images on both Java 8 and Java 9 and above.
(Note that MacOS uses only 1x and 2x scaling, unlike Windows, where arbitrary
HiDPI scalings can occur.)
was (Author: ebakke):
>From mailing list discussions, it seems that NetBeans will continue to be
>built on Java 8 for the forseeable future. The java.lang.reflect.Proxy
>interface could be used to implement MultiResolutionImage by reflection, but
>it does not seem possible to simultaneously have the Proxy object extend from
>Image (or BufferedImage), which is required here.
A better approach, for backwards-compatibility with Java 8, is to implement
NETBEANS-3469, having ImageUtilities write out pre-rendered PNG files at 1x and
2x resolution into the NetBeans cache directory, following the prescribed MacOS
naming convention (e.g. "icon.png" and "i...@2x.png"), and then using
Toolkit.getImage(URL) to produce the actual Image object (on MacOS only). This
will produce retina-capable images on both Java 8 and Java 9 and above.
(Note that MacOS uses only 1x and 2x scaling, unlike Windows, where arbitrary
HiDPI scalings can occur.)
> Make HiDPI (Retina) icons work in MacOS menu bar
> ------------------------------------------------
>
> Key: NETBEANS-3468
> URL: https://issues.apache.org/jira/browse/NETBEANS-3468
> Project: NetBeans
> Issue Type: Improvement
> Components: platform - Other
> Affects Versions: 11.3
> Environment: MacOS with retina display
> Reporter: Eirik Bakke
> Priority: Minor
> Labels: HiDPI
> Attachments: menuicon_retina.png
>
>
> HiDPI icons, introduced in NETBEANS-2614 and NETBEANS-2604, do not yet show
> up in the correct resolution when used in the menu bar on MacOS. See the
> attached screenshot (from a NetBeans Platform application). This should be
> fixed.
> Note that we have only so far introduced HiDPI icons for the "Undo" and
> "Redo" actions.
> Emilian Bold probably figured this out in his earlier experimental Retina
> support branch; see RetinaMultiResolutionImage in
> https://github.com/emilianbold/nextbeans/commit/0f99dba0c1b3e8e0bc4e7cec407b53d30e85ead1
> . If the solution involves implementing MultiResolutionImage, then make sure
> not to do this on Windows (to avoid
> https://bugs.openjdk.java.net/browse/JDK-8212226 ).
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