Horizontal scrolling not possible with touchpad with Metal and Nimbus L&F when both scrollbars are visible

[Robert Krüger]

OK, I have done that. Btw, are there any concrete plans to migrate
that to Jira as well?

Thanks,

Robert

On Fri, Jul 25, 2014 at 4:23 PM, Alexander Scherbatiy
<alexandr.scherbatiy at oracle.com> wrote:
>
> Please, file the bug report in http://bugreport.java.com/bugreport
>
>  Thanks,
>  Alexandr.
>
>
> On 7/25/2014 10:34 AM, Robert Krüger wrote:
>>
>> Hi,
>>
>> horizontal scrolling in a JScrollPane does not work with a touchpad
>> with Metal and Nimbus Look & Feel  when both scrollbars are visible.
>> It does work with Aqua.
>>
>> This little example demonstrates the problem:
>>
>> import javax.swing.*;
>>
>> public class TestTreeScrolling {
>>      public static void main(String[] args) throws Exception {
>>          for (UIManager.LookAndFeelInfo info :
>> UIManager.getInstalledLookAndFeels()) {
>>              if (info.getName().startsWith("Nimbus")) {
>>                  UIManager.setLookAndFeel(info.getClassName());
>>                  break;
>>              }
>>          }
>>          final JFrame frame = new
>> JFrame(TestTreeScrolling.class.getSimpleName());
>>          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
>>
>>          final JScrollPane scrollPane = new JScrollPane(new JTree());
>>
>> scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
>>
>> scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
>>          frame.getContentPane().add(scrollPane);
>>          frame.pack();
>>          frame.setVisible(true);
>>      }
>> }
>>
>> Expand the tree a bit and resize the window so that both scrollbars
>> are visible. Making a horizontal scroll gesture on the touchpad
>> results in vertical scrolling.
>>
>> Tested systematically with JDKs 6_51 and 8_11 but observed with all
>> production releases of 8 before as well.
>>
>> Is this a known bug?
>>
>> Is there a known workaround (hacking the Look & Feel is also an option
>> because we override it in our application anyway)? There must be as
>> IntelliJ Idea does not have this problem and they are not using Aqua
>> but I have failed to find it in their code.
>>
>> Does it make sense to file a bug report and if so where?
>>
>> Best,
>>
>> Robert
>
>



-- 
Robert Krüger
Managing Partner
Lesspain GmbH & Co. KG

www.lesspain-software.com