This looks like it might help in so far as it implies that the
bug was an incorrect guess at what should be the imageable area
But I have a lot of uncertainties that I need to investigate.
Eg when I try your test case with 8u20 I don't see a vertical margin
of anywhere near 1 inch so if we are getting margins from the code
you over-rode, why is that ? Is JTable deliberately drawing outside
the imageable area for its header and footer ?
Can we just return with defaultPage ? Not if there are updated margins
from somewhere else.
I am not entirely sure that in the case you use printDialog() with no-args
and print() with no-args that we really should be in this
attributesToPageFormat()
method at all. Perhaps we can fix it up when we are here but can we avoid
this ?
Regardless of that there are couple of things that look like bugs in the
code :-
The PageFormat imageable area takes into account the rotation of the page,
the Paper does not. So when you set it like this :-
747 paper.setImageableArea(page.getImageableX(), page.getImageableY(),
748 page.getImageableWidth(), page.getImageableHeight());
749 }
.. you are ignoring the potential for LANDSCAPE - or REVERSE_LANDSCAPE.
And what if the default page is based on some large size like A3
and then the application has specified a media of A5, but no media
printable area ?
It appears the code will then try to set the paper's imageable area much
larger than the entire paper.
Should you not in fact limit it to the size of the paper ?
Or arguably limit it to the hardware limited imageable area ?
In the test 'custom' case I see you use printDialog(attributeset) but
then print()
The normal pattern is to use it consistently so that the changes made by the
user in the attributeset are propagated.
On the mac the native 'print' dialog doesn't - so far as I can see -
allow you
to change the paper size and layout. This is a bit different than other
platforms.
I guess your bug manifests in the case where this is defaults so it probably
doesn't matter.
-phil.
On 12/03/2014 06:08 AM, Alexander Scherbatiy wrote:
On 12/1/2014 8:28 PM, Phil Race wrote:
Hmm .. it looks as if this breaks the case when the Swing dialog is
used, doesn't it ?
I think this update needs to be accompanied by regression tests that
show that
this kind of page set up using native & swing dialogs both work.
We can't easily use the JCK tests for this.
Could you review the updated fix:
http://cr.openjdk.java.net/~alexsch/8044444/webrev.02
- The native imageable area is set to the page if it is not defined
in the set of attributes for the printer job.
- The manual test that checks printing with/without print dialog
and with/without media printable area properties is added.
Thanks,
Alexandr.
-phil.
On 11/27/14 7:45 AM, Alexander Scherbatiy wrote:
On 11/21/2014 9:20 PM, Phil Race wrote:
This seems to me to be asking about something I covered already.
>The latter one appears 'correct' in this case since applying it
second
>fixes the output but I don't have enough information to know why the
>values differ.
But you have the test case and I don't ..
Did you try any of what I suggested ?
The CPrinterJob.getPageFormat() returns right selected printer
format. The problem is that RasterPrinterJob.attributeToPageFormat()
method creates
a default page with right page format and overrides page
size/imageable area after that to predefined ones.
This happens only because the CPrinterJob.printLoop() native
method calls javaPrinterJobToNSPrintInfo(...) method after
javaPageFormatToNSPrintInfo(...).
The JCK has a set of JTable print tests. I run them using the
predefined page size/imageable area and with the selected printer
settings.
The page number is properly printed when the selected printer
settings are used.
I have updated the fix to preserve the selected printer page size:
http://cr.openjdk.java.net/~alexsch/8044444/webrev.01/
Thanks,
Alexandr.
-phil.
On 11/18/14 8:17 AM, Alexander Scherbatiy wrote:
Hi Phil,
Before the 8011069 fix
RasterPrinterJob.getPageFormatFromAttributes() method returns null
for null attributes
and native page size for ImageableArea has been used.
After the 8011069 fix the attributes are not null and
updateAttributesWithPageFormat() method rewrites
the ImageableArea size to the default constants.
The question is which ImageableArea size is correct? If there
should be used default values then the 8044444 is not an issue as
all works as expected.
If it is necessary to use native size then I can update the fix
to do that.
Thanks,
Alexandr.
On 10/30/2014 11:10 PM, Phil Race wrote:
When we reach this code everything in the job is already
configured by a
combination of initial settings and user updates and and we just
need to read
the settings and pass it on to the native NSPrintInfo.
So surely switching the order should not matter unless one of these
is using the 'wrong' PageFormat ?
-----------------
the body of the method called here :-
javaPrinterJobToNSPrintInfo(env, jthis, pageable, printInfo);
gets its PageFormat as follows :-
static JNF_MEMBER_CACHE(jm_getPageFormat, sjc_CPrinterJob,
"getPageFormatFromAttributes", "()Ljava/awt/print/PageFormat;");
....
jobject page = JNFCallObjectMethod(env, srcPrinterJob,
jm_getPageFormat);
if (page != NULL) {
javaPageFormatToNSPrintInfo(env, NULL, page, dst);
}
So this uses the result of making a call to
RasterPrinterJob.getPageFormatFromAttributes()
protected PageFormat getPageFormatFromAttributes() {
if (attributes == null) {
return null;
}
return attributeToPageFormat(getPrintService(),
this.attributes);
}
-----------------------------
whereas
javaPageFormatToNSPrintInfo(env, jthis, page, printInfo);
is using a PageFormat obtained as follows :-
static JNF_MEMBER_CACHE(jm_getPageFormat, sjc_CPrinterJob,
"getPageFormat", "(I)Ljava/awt/print/PageFormat;");
jobject page = JNFCallObjectMethod(env, jthis,
jm_getPageFormat, 0);
This is CPrinterJob.getPageFormat() { .. }
Although its not easily apparent what the returned values are in
each of these cases
it does seem they must be different.
The latter one appears 'correct' in this case since applying it
second
fixes the output but I don't have enough information to know why
the
values differ.
Looking at the fix for 8011069, it avoided an NPE by always
creating an 'attributes' map, albeit an empty one.
This can change the result of calling getPageFormatFromAttributes
from
'null' to a PageFormat built from an empty attribute set.
If the no-args native printDialog() and the no-args print() call
is used this will be empty.
So the method will indeed build - at that moment - a page format
built from
default values.
Now. If we *do* use the printDialog(PrintRequestAttributeSet) and
print(PrintRequestAttributeSet) methods, then it may well be that
this
method is the one that should be called.
And I think we were previously only in this block of code if that
were the case
by virtue of the block being guarded by "if (page != NULL)",
which means
there is an attributeset, which previously meant one of those
"with args"
methods had been used.
So I wonder/suspect if the switching of the order will introduce
the equivalent
problem in that 'with args' case.
As you can tell just looking at the webrev its nigh on impossible
to tell
for sure and you'd probably need to play around with testing
changing
paper size and orientation in native and cross-platform dialogs
to test it.
You could start by seeing if the test 'passes' simply by
switching to
'with args' before & after your fix - ensuring that the same
paper sizes
are being used. I am not sure what the default settings were that
were
created for the empty attribute set vs the ones that are used
when you
fixed this. You'll have to tell me that.
Perhaps what is needed is a unified call to get the PageFormat which
can figure out whether to use the attributes or not. And you could
check if the call to CPrinterJob.getPageFormat() already performs
that ..
-phil.
On 10/28/2014 01:03 PM, Alexander Scherbatiy wrote:
Hello,
Could you review the fix?
Thanks,
Alexandr.
On 7/15/2014 3:28 PM, Alexander Scherbatiy wrote:
Hello,
Could you review the fix:
bug: https://bugs.openjdk.java.net/browse/JDK-8044444
webrev: http://cr.openjdk.java.net/~alexsch/8044444/webrev.00
Native method printLoop from CPrinterJob calls
javaPrinterJobToNSPrintInfo(...) method after
javaPageFormatToNSPrintInfo(...).
Both methods set the page size. The initial page size is set
in defaultPage(PageFormat) method.
After the fix 8011069 the printDialog() initializes
attributes which leads that new page size is created in the
attributeToPageFormat(PrintService, PrintRequestAttributeSet)
method.
The fix changes order of the javaPrinterJobToNSPrintInfo(...)
javaPageFormatToNSPrintInfo(...) call so initial page size is
set at the end.
There is the JCK test that covers the issue.
Thanks,
Alexandr.
