426078 - Scaling while printing (also as "shrink to fit") produces gaps in text

Status: RESOLVED DUPLICATE of bug 423047

(Core Graveyard :: GFX, defect)

Description

[Ilja Sekler]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9pre) Gecko/2008033004 Minefield/3.0pre
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9pre) Gecko/2008033004 Minefield/3.0pre

Printing a page that requires scaling to fit paper width results in gaps in long text lines. A gap will appear after the 103 character in a line.

It regressed on 2008-02-20, bug 418353 again?

A testcase follows.

Reproducible: Always

Steps to Reproduce:
1. Set print.print_shrink_to_fit to "true"
2. Print the testcase to a postscript file
3. View the output.
Actual Results:  
There is a gap in each line after the 103 character in this line.

Expected Results:  
No gap.


The width of the gap depends on font hinting settings. It is wider with "hintfull" and smaller with "hintslight". Related to bug 403513 after the cairo upgrade?

Comment 1

[Ilja Sekler]

Attachment: Testcase

Comment 2

[Ilja Sekler]

Attachment: The testcase printed to a PostScript file

Comment 3

[Ilja Sekler]

The number of characters before the gap is wrong, my deepest apologies. It should be 102, not 103 as stated in the bug description.

"font-style: Arial, sans-serif;" in the testcase is not required for being able to reproduce the bug.

The attached PostScript file has been printed with font hinting set to "hintslight".

Sorry for bugspam!

Comment 4

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

This is essentially the same as bug 423047, but the steps to reproduce are different.  The bug is fixed in upstream cairo currently.