Adrien DE GEORGES created NETBEANS-4533:
-------------------------------------------
Summary: hinese characters not displayed in table header for
ordered column (Windows Look&Feel)
Key: NETBEANS-4533
URL: https://issues.apache.org/jira/browse/NETBEANS-4533
Project: NetBeans
Issue Type: Bug
Components: platform - Outline&TreeTable
Environment: Windows 7, using the Windows Look and Feel.
Reporter: Adrien DE GEORGES
Attachments: BugETableChinese.zip, ETableHeader.java.v8.2.patch
Scenario:
* Use the Windows Look and Feel in your Java application (with Metal: no
problem).
* Create a ETable with a column header having characters in Chinese or Japanese
(or any not supported by Tahoma font).
* When running the program, click on this header to sort the column => these
characters will be replaced by a square.
(small Maven project attached, with 1 class and one main method)
Root cause:
The headers of the sorted columns will be rendered in bold by the ETable, which
is done in "ETableHeader::getTableCellRendererComponent". This code takes the
font of the JLabel used for the rendering, and creates a similar font in bold.
For that, it does not uses "Font::deriveFont(...)" (because of a 2005 bug with
Apple's JVM), but uses "(new Font (label.getFont().getName(), ...)".
Under Windows it is a problem:
* the default font (used here by the JLabel) is a composite font
* from what I understand, a composite font is a list of physical fonts, which
will be successively used to try to render a given character.
* this list of the physical fonts contains one that supports Chinese characters.
* label.getFont().getName() retrieves the name of the first font of the
composite font, in the case of the Windows Look and Feel it is "Tahoma" (which
does not support Chinese).
* so the "new Font(...)" used as a header renderer will be only "Tahoma", hence
the square characters.
Does this analysis makes sense for you?
My suggestion would be to revert the patch from 2005. I don't have a Mac to my
disposition to test that its works though.
Old code:
// don't use deriveFont() - see #49973 for details
label.setFont (new Font (label.getFont ().getName (), Font.BOLD, label.getFont
().getSize ()));
New code:
label.setFont(label.getFont().deriveFont(Font.BOLD));
A patch is attached in the ticket.
Please note that this is a duplicate of a bug already logged in the old
Bugzilla : [https://bz.apache.org/netbeans/show_bug.cgi?id=270091]
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
For further information about the NetBeans mailing lists, visit:
https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
