Bug 59393

Summary: Printing pages with very long lines results in unreadable output.
Product: WebKit Reporter: Steve VanDeBogart <vandebo>
Component: PrintingAssignee: Nobody <webkit-unassigned>
Status: UNCONFIRMED    
Severity: Normal CC: ap, aroben, hyatt
Priority: P2    
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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