Bug 59393

Summary:

Printing pages with very long lines results in unreadable output.

Product:

WebKit

Reporter:

Steve VanDeBogart <vandebo>

Component:

Printing

Assignee:

Nobody <webkit-unassigned>

Status:

UNCONFIRMED

Severity:

Normal

CC:

ap, aroben, hyatt

Priority:

Version:

528+ (Nightly build)

Hardware:

All

OS:

All

URL:

http://snowplow.org/martin/printtest.html

Attachments:

Description	Flags
test output	none
Output with nightly (r84630)	none

Steve VanDeBogart

Reported 2011-04-25 16:33:43 PDT

Webkit tries to scale content to fit to the width of a page. If there are very wide elements, the scaling makes the page unreadable. There should be a min horizontal scale factor to prevent this. Repro case: http://snowplow.org/martin/printtest.html Firefox does not scale the content to fit, and thus simply clips the long line in the test above. This bus was reported to Chrome (crbug.com/49698), but also occurs in Safari.

Attachments
test output (31.43 KB, application/pdf) 2011-04-25 16:54 PDT, Steve VanDeBogart	no flags	Details
Output with nightly (r84630) (31.89 KB, application/pdf) 2011-04-25 17:15 PDT, Steve VanDeBogart	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Alexey Proskuryakov

Comment 1 2011-04-25 16:44:41 PDT

I cannot reproduce this with Safari 5.0.5 on Mac OS X 10.6.7. What version of Safari and on what platform are you seeing this with? We do have a minimum scale factor, which is set to 2x.

Steve VanDeBogart

Comment 2 2011-04-25 16:53:49 PDT

I tried on Windows 7 with Safari 5.0.5 (7533.21.1). Printing to Adobe Acrobat produces the attached PDF. It looks like an effective scale factor of about 16x is applied.

Steve VanDeBogart

Comment 3 2011-04-25 16:54:13 PDT

Created attachment 91023 [details] test output

Alexey Proskuryakov

Comment 4 2011-04-25 17:04:09 PDT

Thanks! I don't have Windows handy, may I ask for one more thing? Could you try this with a nightly build from <http://nightly.webkit.org/>? It doesn't replace your installed Safari, and doesn't affect it in any way at all - and I have a suspicion that this may have been fixed already.

Steve VanDeBogart

Comment 5 2011-04-25 17:15:03 PDT

Created attachment 91029 [details] Output with nightly (r84630) There's a marginal improvement with the nightly build, but not much. Maybe 16x->8x

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