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https://issues.apache.org/jira/browse/NETBEANS-49?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16719012#comment-16719012
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Eirik Bakke commented on NETBEANS-49:
-------------------------------------
Yes, this patch was Windows-specific. There are two options for making it work
for other LAFs:
1) Use reflection to make the patch LAF-independent, like in
http://mail.openjdk.java.net/pipermail/awt-dev/2017-January/012507.html . The
problem is that this particular reflection trick might be disallowed in future
Java versions (at least according to a warning message that is printed by the
JRE when this approach is used).
2) Make a new custom ScrollPaneUI class for each LAF that is to be supported,
extending from whatever LAF-specific ScrollPaneUI class is used in said LAF.
For Darcula, this requires copying the code in this patch to the Darcula
repository.
I'm not sure which approach is better--in particular, I don't know exactly how
likely the reflection-based approach (approach 1) is to fail in future Java
versions.
Approach 1 would be a change in NetBeans only, while Approach 2 would require a
change on the Darcula side, and some code duplication.
> Please add smooth scrolling
> ----------------------------
>
> Key: NETBEANS-49
> URL: https://issues.apache.org/jira/browse/NETBEANS-49
> Project: NetBeans
> Issue Type: Improvement
> Components: platform - Window System
> Reporter: Christian Lenz
> Priority: Major
> Labels: pull-request-available
> Fix For: 10.0
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> Inside the editor, when I scroll with my touchpad to the bottom, it jumps 9
> lines to the next, this is a lot. I don't like such gappings I would like to
> have a smooth stepless scrolling, like in chrome or other windows native
> apps. Please add this for horizontal and vertical scrolling, it will be much
> better. Not only in editors, it should be available everywhere, where we have
> scrollbars.
> Regards
> Chris
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