Comments on: Sexy Swing App – iTunes Table Header

By: ijabz

ijabz — Fri, 17 Oct 2008 12:45:58 +0000

The key changes are in getTableCellRendererComponent, and I simplified the HeaderClickHandler so that it just identified mouse presses and didnt deal with the sorting.

One additional thing I did do is change your Painter code to implement Swingx painters instead then I could use the same Painter to paint the background of a JXLabel used as the header for my browser genre/artist/album list. So unlike others comments on the list I would actually prefer the dependencies on swingx to be kept so your code can be eaily used in situations that might not have ocurred to you, but I can see why the dependency has been removed.

By: Ken

Ken — Fri, 17 Oct 2008 12:30:43 +0000

Looks great Paul! I’ll take a look at your changes and see if I can incorporate them back in. Also note that I’m currently working on iTunes style scroll bars which may be of interest to you.

-Ken

By: ijabz

ijabz — Fri, 17 Oct 2008 12:23:16 +0000

This table header rendering code is great , its something Ive wanted to achieve for quite some time. I actually use Swingx and JXTables so I’ve made modification to your code so that it works with a JXTable with in built sorting on Java 1.5.

Screenshot: http://www.jthink.net/jaikoz/jsp/code/jaikozusingmacwidgets.jpg
Code: http://www.jthink.net/jaikoz/jsp/code/JaikozColumnHeaderRenderer.java

By: Ken

Ken — Wed, 27 Aug 2008 12:10:14 +0000

Glad you got it working. I’ll talk to the Glazed Lists guys about maybe integrating with the JDK 6 sort header rendering (not that that would have helped you).

By: ishkafel

ishkafel — Wed, 27 Aug 2008 05:48:16 +0000

thanks…
but I finally able to figure out how to draw sorter arrow with your table header, for some reason my table just need ordinary sorting ability and it’s quite easier to just use jdk6 auto sorter ability…

thanks… nice project and awesome Swing tips… can’t wait for your new tips…

By: Ken

Ken — Wed, 13 Aug 2008 10:43:59 +0000

I should have pointed out that the table sorting and the sorting arrows were provided by Glazed Lists. If your interested in using Glazed Lists sorting capabilities, check out this demo code. Sorry about the confusion.

By: ishkafel

ishkafel — Wed, 13 Aug 2008 07:13:44 +0000

Hi i read you post at java-dev mailing list, and i tried to use your header renderer, and do some changes, but i don’t know for some reason the sort arrow never drawn even when i just copy paste your code… does it suppose to happen or just in my case?
Can anybody help me with sorter arrow drawing?

thanks…

By: rbs

rbs — Mon, 07 Jul 2008 18:52:24 +0000

Just to be clear… In my case I have a particular table where sorting is not allowed, nor is column selection. Consequently, I do not want _anything_ to happen if the user clicks on a column heading. And that includes changing the color of the header. The stock default header renderer behaves the way I want, and adding the if-then clauses that i suggest causes ITunesTableHeaderRenderer to do so also.

As for why that’s the case, it’s actually a tree-table with just a few columns. Sorting is automatic, and row selection is preferred.

By: Ken

Ken — Sun, 06 Jul 2008 10:48:11 +0000

Hmmm…I don’t know if you’d want to prevent sorting if columns weren’t allowed to be selected. Column selection relates to selecting all the cells in a column, where as clicking the header indicates that a sort operation should be performed. These seem like two distinct things to me.

By: rbs

rbs — Sun, 06 Jul 2008 01:25:18 +0000

THis is pretty nifty, but you need to alter the mouseClicked and mousePressed methods in HeaderClickHandler to test if column selection is allowed in the table. Otherwise is highlights a clicked column heading even when column selection is turned off.

As is, you have in mouseClicked…

final TableColumnModel columnModel = fTable.getColumnModel();
int viewColumn = columnModel.getColumnIndexAtX(mouseEvent.getX());
fSelectedColumn = fTable.convertColumnIndexToModel(viewColumn);

That would be better as…

final TableColumnModel columnModel = fTable.getColumnModel();
if (columnModel.getColumnSelectionAllowed ( ))
{
int viewColumn = columnModel.getColumnIndexAtX(mouseEvent.getX());
fSelectedColumn = fTable.convertColumnIndexToModel(viewColumn);
}