Re: DO NOT REPLY [Bug 40271] - auto table layout -- dirty draft

[Andreas L Delmelle]

On Nov 22, 2006, at 15:23, [EMAIL PROTECTED] wrote:

Andrejus,



--- Additional Comments From [EMAIL PROTECTED]   
2006-11-22 06:23 ---

(In reply to comment #47)
Don't think SVG is a problem... If you insist on JPEG or GIF,  
there's always

Batik to transcode it :)

I'm just trying to find kind of common denominator for that  
diagramming when
others could also easy review/comment. So far I was not able to  
view generated

SVG correctly inside my IE6 or Firefox 2.0. If you use any other open
source/free viewer for that and could see everything correctly -  
please advice.


Haven't tried it myself, but you could try running the SVG through  
Batik Squiggle.
It's as free and open-source as it gets, and... it's a sibling to FOP  
under the XML Graphics umbrella. :)



Cheers,

Andreas

Re: FO Properties and memory usage

[Andreas L Delmelle]

On Nov 22, 2006, at 13:30, [EMAIL PROTECTED] wrote:

Hi Richard,



I've been experiencing a couple of problems lately regarding
speed and memory usage when generating some large fop reports
(around 42MB .fo) Having run Hat on the hprof dump and taken
a closer look at the code I see an awful lot of objects which
don't appear to serve any useful purpose. e.g. ~38000 instances
of CommonAural, CommonAccessibility, etc. which are never used.



It seems like almost every class in the fo tree is storing
redundant properties. Is there any reason why I shouldn't
remove the worst offenders and submit the appropriate patch?


Interesting info, and it somewhat confirms my suspicions... although  
we need to take care: just because they are currently not effectively  
used in the process doesn't mean that they are completely superfluous  
or redundant. Just because we currently don't have a renderer for  
which the CommonAural properties make sense, does not mean we never  
will incorporate such a renderer into FOP. If we ever do, those  
properties will have to be re-introduced anyway...


OTOH, if you feel like investigating further, I personally would be  
very interested to see if the properties implementation cannot be  
optimized in other ways than simply removing them as members from the  
FOs.


I recently mentioned the idea of flyweights. Take for example a  
property for 'font-size="10pt"'. In the current implementation, if  
this property occurs on a thousand different FOs, there will be  
exactly as many Property instances created for it, while this could  
be reduced to one. All the related FOs can then share a reference to  
that one single instance.
We would add a little overhead, since for each property we'd need to  
check if an instance with the exact same property value is already  
present in the pool... but this small overhead would drastically  
reduce the memory usage IIC.



Cheers,

Andreas

DO NOT REPLY [Bug 41019] - Left-align oddness with long, unbreakable strings following

[bugzilla]

DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG·
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND·
INSERTED IN THE BUG DATABASE.

http://issues.apache.org/bugzilla/show_bug.cgi?id=41019





--- Additional Comments From [EMAIL PROTECTED]  2006-11-22 08:31 ---
Created an attachment (id=19161)
 --> (http://issues.apache.org/bugzilla/attachment.cgi?id=19161&action=view)
PDF file I built that manifests the problem

PDF file manifesting the problem

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DO NOT REPLY [Bug 41019] - Left-align oddness with long, unbreakable strings following

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http://issues.apache.org/bugzilla/show_bug.cgi?id=41019





--- Additional Comments From [EMAIL PROTECTED]  2006-11-22 08:29 ---
Created an attachment (id=19160)
 --> (http://issues.apache.org/bugzilla/attachment.cgi?id=19160&action=view)
FO file illustrating the problem

Convert this file to PDF with trunk r477112 to see the problem.

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DO NOT REPLY [Bug 41019] New: - Left-align oddness with long, unbreakable strings following

[bugzilla]

DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG·
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http://issues.apache.org/bugzilla/show_bug.cgi?id=41019

   Summary: Left-align oddness with long, unbreakable strings
following
   Product: Fop
   Version: all
  Platform: PC
OS/Version: Linux
Status: NEW
  Severity: normal
  Priority: P2
 Component: page-master/layout
AssignedTo: fop-dev@xmlgraphics.apache.org
ReportedBy: [EMAIL PROTECTED]


I used trunk at r477112.

If in a left-aligned block some typical text words are followed by a string
longer than the line-length and containing no spaces (e.g. a long URL), then the
foregoing text will have premature line breaks, i.e. halfway to two-thirds the
way into the line.  See attached files or
 for an example.

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DO NOT REPLY [Bug 40271] - auto table layout -- dirty draft

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http://issues.apache.org/bugzilla/show_bug.cgi?id=40271





--- Additional Comments From [EMAIL PROTECTED]  2006-11-22 06:23 ---
(In reply to comment #47)
> Don't think SVG is a problem... If you insist on JPEG or GIF, there's always 
Batik to transcode it :)

I'm just trying to find kind of common denominator for that diagramming when 
others could also easy review/comment. So far I was not able to view generated 
SVG correctly inside my IE6 or Firefox 2.0. If you use any other open 
source/free viewer for that and could see everything correctly - please advice.

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FO Properties and memory usage

[richardw]

Hi,

I've been experiencing a couple of problems lately regarding
speed and memory usage when generating some large fop reports
(around 42MB .fo) Having run Hat on the hprof dump and taken
a closer look at the code I see an awful lot of objects which
don't appear to serve any useful purpose. e.g. ~38000 instances
of CommonAural, CommonAccessibility, etc. which are never used.

It seems like almost every class in the fo tree is storing
redundant properties. Is there any reason why I shouldn't
remove the worst offenders and submit the appropriate patch?

Regards,

Richard