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Bug 590586 - [ml_IN] Title bar and desktop panels are bigger for indic locales
Summary: [ml_IN] Title bar and desktop panels are bigger for indic locales
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: smc-fonts
Version: 6.0
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Pravin Satpute
QA Contact: QE Internationalization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-05-10 08:52 UTC by Praveen Arimbrathodiyil
Modified: 2010-11-10 21:38 UTC (History)
5 users (show)

Fixed In Version: smc-fonts-04.2-8.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-11-10 21:38:02 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
screenshot with en_IN locale (404.33 KB, image/png)
2010-05-10 08:53 UTC, Praveen Arimbrathodiyil 		no flags Details
screenshot with ml_IN locale (282.74 KB, image/png)
2010-05-10 08:54 UTC, Praveen Arimbrathodiyil 		no flags Details
ligature describing need for extra space below and above (60.65 KB, image/png)
2010-05-14 04:49 UTC, Pravin Satpute 		no flags Details
with <times> tag (827.42 KB, image/png)
2010-06-10 11:16 UTC, Praveen Arimbrathodiyil 		no flags Details
without <times> tag (844.40 KB, image/png)
2010-06-10 11:18 UTC, Praveen Arimbrathodiyil 		no flags Details
View All

Description Praveen Arimbrathodiyil 2010-05-10 08:52:28 UTC 
Description of problem:
There is lot of extra spaces above and below text and the user experience is poor compared to english locale.

Version-Release number of selected component (if applicable):

metacity-2.28.0-15.el6.x86_64

How reproducible:

always

Steps to Reproduce:
1. Select any Indic locale from login screen (eg Malayalam)
2. observe size of desktop panel
3. open any window and observe size of title bar
  
Actual results:
title bar and panel size is bigger with lot of spaces above and below text compared to english locale in the same resolution

Expected results:

similar experience like english locale

Additional info:
Comment 1 Praveen Arimbrathodiyil 2010-05-10 08:53:28 UTC 
Created attachment 412760 [details]
screenshot with en_IN locale
Comment 2 Praveen Arimbrathodiyil 2010-05-10 08:54:33 UTC 
Created attachment 412761 [details]
screenshot with ml_IN locale
Comment 4 RHEL Program Management 2010-05-10 10:48:07 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.
Comment 5 Pravin Satpute 2010-05-14 04:49:28 UTC 
Created attachment 413942 [details]
ligature describing need for extra space below and above

this is not metacity issue, this is problem from fonts

reason behind this is font metrics of Meera

Rachana: Ascent: 1638, Descent: 410
Meera:  Ascent: 1147, Descent: 901
Lohit:  Ascent: 650, Descent: 374

some ligature of Meera requires this space

see bug #523454
Comment 6 Praveen Arimbrathodiyil 2010-05-14 05:55:25 UTC 
I don't think it is specific to Meera of  Malayalam, we noticed problems with Panjabi and Telugu as well. Latin characters along with Panjabi was even getting cut at the bottom.
Comment 7 Praveen Arimbrathodiyil 2010-05-14 06:11:29 UTC 
Title bar is of expected size with other fonts, but we need to fix it for Meera as well.

We know Ascent and Descent of Meera differs from other fonts, but if you look at the values you have given, even though the Descent is more Ascent is proportionally less. So how would that affect this bug?
Comment 8 fujiwara 2010-05-14 06:25:30 UTC 
metacity calculates the text height == pango_font_metrics ascent (metrics) + descent (metrics) and my understanding is the metacity is right.
https://bugzilla.redhat.com/show_bug.cgi?id=530085#c16
Comment 9 Bill Nottingham 2010-05-17 15:10:11 UTC 
Should this bug be reassigned?
Comment 10 Praveen Arimbrathodiyil 2010-06-10 08:38:07 UTC 
for Meera this can be fixed by changing the fontconfig configuration.

current configuration is,

<match target="font">
        <test name="family">
                <string>Meera</string>
        </test>
        <edit name="matrix" mode="assign">
                <times>
                        <name>matrix</name>
                        <matrix>
                                <double>1.2</double><double>0</double>
                                <double>0</double><double>1.2</double>
                        </matrix>
                </times>
        </edit>
</match>

<times> and </times> should be removed.
Comment 11 Pravin Satpute 2010-06-10 09:12:04 UTC 
Praveen can you attach images, showing the difference?
Comment 12 Praveen Arimbrathodiyil 2010-06-10 11:16:45 UTC 
Created attachment 422867 [details]
with <times> tag
Comment 13 Praveen Arimbrathodiyil 2010-06-10 11:18:21 UTC 
Created attachment 422869 [details]
without <times> tag
Comment 15 Pravin Satpute 2010-06-21 05:54:51 UTC 
fixed in smc-fonts-04.2-8.el6
Comment 17 A S Alam 2010-09-06 04:23:43 UTC 
tag <times> removed from fonts 
tested Package: smc-meera-fonts-04.2-11.el6.noarch
Comment 18 releng-rhel@redhat.com 2010-11-10 21:38:02 UTC 
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.
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