desktop-packages team mailing list archive

[Arne Goetje <arne@xxxxxxxxxxxx>]

This is a rendering issue, not an input issue. My guess is that pango/QT/LibreOffice are of fault here. Freetype should be able to support variation selectors, but this needs to be confirmed.
Pango is used for GTK+ applications, LibreOffice comes with its own rendering engine.
Let me do some research here, I'll post the results.

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https://bugs.launchpad.net/bugs/736153

Title:
  Unicode variation selectors not supported

Status in LibreOffice:
  New
Status in “gnome-control-center” package in Ubuntu:
  New

Bug description:
  I'm trying to typeset some texts in ancient Mongolian and Phags-pa,
  both of which have been included in Unicode. For Mongolian, I've
  installed the ttf-manchufont package. For Phags-pa, I've used the font
  available here: http://babelstone.blogspot.com/2006/12/phags-pa-
  shaping-behaviour.html

  Both languages use the Unicode Variation Selectors. In a nutshell, the
  combination character + variation selector should change the
  representation of the character to a different variant. See the table
  of Standardised Unicode variants here:
  http://www.unicode.org/Public/UNIDATA/StandardizedVariants.html

  The expected behavior does not work in any of the packages I've tried
  (gedit, gimp and OpenOffice). Instead, the variation selector remains
  as it's own character and the preceding character is unmodified (see
  attachment).

  This is NOT an issue with the fonts because:
  a. The fonts have the appropriate substitutions defined, as can be observed by editing the fonts in e.g. fontforge.
  b. The expected behavior happens in WIndows 7 using these fonts.

  This is an issue with whatever package handles Unicode glyph
  substitution.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: xorg 1:7.5+6ubuntu3
  ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
  Uname: Linux 2.6.35-27-generic x86_64
  NonfreeKernelModules: fglrx
  Architecture: amd64
  Date: Wed Mar 16 10:30:20 2011
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
  MachineType: MICRO-STAR INTERNATIONAL CO.,LTD MS-7576
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-27-generic root=UUID=136a2918-79f6-4777-a8b5-b9d86515a24b ro quiet splash
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 12/17/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V4.0
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: 790GX-G65 (MS-7576)
  dmi.board.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV4.0:bd12/17/2009:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-7576:pvr1.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rn790GX-G65(MS-7576):rvr1.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr1.0:
  dmi.product.name: MS-7576
  dmi.product.version: 1.0
  dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
  glxinfo: Error: [Errno 2] No such file or directory
  system:
   distro:             Ubuntu
   codename:           maverick
   architecture:       x86_64
   kernel:             2.6.35-27-generic

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