Open
Bug 222009
Opened 22 years ago
Updated 3 years ago
[ps] Postscript with wrong letter-spacing
Categories
(Core :: Printing: Output, defect)
Tracking
()
NEW
People
(Reporter: starback, Unassigned)
References
()
Details
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20030925
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20030925
In postscript output some non-ascii letters get too much spacing after
them when using letter-spacing.
The example file looks like this:
<html>
<head>
<style type="text/css">
p {
LETTER-SPACING: 0.9px;
}
</style>
<body>
<p>småförnäm
</body>
</html>
Reproducible: Always
Steps to Reproduce:
1. Go to <http://stp.ling.uu.se/~starback/bug/letter-spacing.html>
2. Print to a postscript file
Actual Results:
The postscript output has much more spacing after the three non-ascii letters
than after the other letters.
Expected Results:
Uniform spacing.
This is perhaps related to bug 195206. I don't know.
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Comment 1•22 years ago
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Confirming. The effect can be repeated using build ID 20031105.
The problem is in nsAFMObject::GetStringWidth(). For characters in the range
000..377, the width of each character is looked up in a character metric table.
The character number becomes an index into an array of character metric values.
There are two problems with this: (1) The character number reflects Latin-1
encoding while the metric array is ordered by an adobe-specific encoding, and
(2) the adobe encoding is sparse above value 0177, so not all values have a
character assigned to them.
For example, the sample contains an aring character, latin-1 character 0345 or
229, which is 444 units wide in times-roman. Mozilla subtracts 32 from the
character number and retrieves the width of the 197th character in its
times-roman width table. Unfortunately, the 197th character in the table is
Ugrave with a width of 722.
Status: UNCONFIRMED → NEW
Ever confirmed: true
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Updated•22 years ago
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Summary: Postscript with wrong letter-spacing → [ps] Postscript with wrong letter-spacing
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Comment 2•22 years ago
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I'm facing the same problem with non-ASCII characters when printing any text
contained in an html justified paragraph in Mozilla for Linux. I've tried both
1.5 and 1.6 versions. If the text alignment is not justified, the problem does
not occur. This problem also is not visible in "print preview", nor in Mozilla
for Windows.
This bug is of major severity for the work we have in our company.
To reproduce the problem:
Create a web page with the following code, open it in Mozilla and print it.
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body>
<p style="text-align: justify;">The following word is a single word,
without spaces between letters: eloqüência<br>
</p>
</body>
</html>
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Updated•16 years ago
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Assignee: printing → nobody
QA Contact: printing
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Updated•3 years ago
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Severity: normal → S3
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Description
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