On 8/25/2015 1:51 PM, prasanta sadhukhan wrote:
On 8/25/2015 3:53 PM, Alexander Scherbatiy wrote:
On 8/24/2015 2:23 PM, prasanta sadhukhan wrote:
Hi All,
Bug: https://bugs.openjdk.java.net/browse/JDK-8081491
webrev: http://cr.openjdk.java.net/~psadhukhan/8081491/webrev.00/
This seems to be a hidden JTable bug in which if the user does not
call pack() or set a ScrollPane() for JTable and rather use
JFrame.setSize() smaller than table size then it was found that some
of the rows which cannot be fitted in 1st page cannot get printed on
2nd and subsequent pages resulting in blank cells to be printed
after 1st page.
It was found that BasicTableUI checks for table bounds to fall
within the clip and if they do not intersect, it bails out from
painting the table cells.
What is the reason that the graphics clip does not intersect the
table bounds during printing in the provided test case?
The testcase does table.setSize(600,800) whereas frame setSize is
400,600 .
For 1st page, the clip was 0,0,384,752 and bounds was 0,0,384,562 so
they intersect and there's no problem in printing the rows in 1st page.
After the 1st page is printed, the clip is set to 0,752,384,48 since
we have printed the rows that we can fit in 1st page and the next set
of rows are to be printed while bounds remains at 0,0,384,562 because
JComponent getBounds is returning the visible frame bounds which did
not change.
The !bounds.intersects(clip) check prevents printing of table rows
which are not visible on the frame.
It seems that the issue is that extra rows which are not shown in
the frame are printed on the first page.
It means that the printed rows and columns should be calculated for
the table bounds and clip intersection.
The test can be updated to mention that only visible part of the
table should be printed.
Thanks,
Alexandr.
Please, also mention in the email title JDK version for which the fix
is provided.
Done
Regards
Prasanta
Thanks,
Alexandr.
I devised a solution whereby it will not bail out till either rows
or columns are still left to be printed on subsequent pages . Please
review and let me know if it's ok.
Regards
Prasanta
