Closed Bug 201746 Opened 19 years ago Closed 14 years ago
RFE: Enable Complex Text Layout in the default build
RFE: Enable Complex Text Layout(=CTL) in the default build that Thai/hindi/tamil users can use Mozilla to view web pages in their native languages (just try http://www.mozilla.org/projects/mathml/start-thai.xml :) ... ToDo: - Turn the current switch --enable-ctl into --disable-ctl I'll mark some bugs as blockers for this one - when they all have been resolved we're ready to turn the CTL support "on" by default
mkaply: Can you check whether CTL works on OS/2, please ?
Nope, please don't enable this for Os/2. We need an updated glib with gmodule support.
Michael Kaply wrote: > Nope, please don't enable this for Os/2. We need an updated glib with gmodule > support. There is likely still some work todo (like your OS/2 issue) before we can enable this - don't worry... :) ... can you file a bug for your problem and mark it as blocker for this bug, please ?
BTW: The OS/2 problem with gmodule support may be fixed by a possible solution for bug 201747 ("RFE: Replace hack for StaticBuilds with conformant solution"). We could simply build these libs statically by default (for all platforms or only for OS/2), removing the need for gmodule support...
Would it be possible to turn this on for Linux/Unix builds by default if OS/2 issue won't be resolved soon? With a few simple patches (bug 204039, bug 204286, bug 203252) and one big patch(bug 176290), Mozilla-Xft can render Devanagari, Thai, and Tamil reasonably well. (Mozilla-X11core would render Devanagari and Thai as it is.) This is also the case of some other Indic scripts (bug 204439: Prabhat has written shapers for them).
Um, before you do this, i'd like to figure out how this affects bezilla. I'm not sure how much sense it makes to build pango on BeOS, or whether any of this really works on BeOS (yes i'm building w/ CTL, but no I haven't done any testing of it). I'd also kind of like to get the CTL code cleaned up a bit, although that's not essential and the intl code which is already built by default needs cleaning, so it's not like anyone really cares about that.
timeless, Prabhat has a patch to clean up CTL code in bug 203406. I'm also aware that you have a patch to remove some warnings bet. the comparsion of signed and unsigned. It'd be nice to land prabhat's patch (203406), yours and mine (bug 204286.) As for BeOS, how is MathML supported on BeOS? Does it use fontEncoding.properties file as is the case of Mozilla-Win, Mozilla-MacOS (classic) and Mozilla-Xft? If it does and BeOS doesn't have the native support of complex script rendering with opentype fonts on par with Windows 2k/XP, it can benefit from CTL via bug 204286/bug 203252 (and bug 204039/bug 176315 in the future if they're recast under the CTL umbrella). Anyway, if the impact of turning this on other platforms is not clear, we may just turn it on for Unix-like systems.
I Think enabling it for *nix builds would be a good idea. Unless there is some policy about not enabling a particular switch for a specific platform.
> enabling it for *nix builds would be a good idea There's one issue to resolve before enabling CTL (on Unix) by default. When CTL is enabled (for about three months, I've been using CTL-enabled Xft builds), the cursor movement in textarea is irratic. IIRC, there's a bug filed for this bug, but apparently it's not filed under 'CTL component' and I couldn't find it. If anybody knows the bug, it'd be nice if this bug is made dependent on it.
Another road block to fixing this is bug 189433. As for the bug I mentioned in comment #9, I couldn't find it. However, I found a bunch of related bugs and listed them in bug 206550. Prabhat wrote to me that he has a working patch in Sun Mozilla (the bug I'm trying to find also has his comment to that effect.)
Update: - The cursor movement issue has been solved - GTK2 builds with CTL without problems I'd like to fix this bug either for mozilla1.7beta or mozilla1.8alpha... any objections against that ?
Target Milestone: --- → mozilla1.7beta
I'd suggest 1.8alpha. 1.7beta is supposed to be done by tomorrow.
It's the right way to open CTL by default. The more user use this feature, the more stable it will become. In Sun' internal mozilla codebase, CTL works fine in most of the time. Prabhat, can you make a patch for this?
Status: NEW → RESOLVED
Closed: 14 years ago
Resolution: --- → WONTFIX
Component: Layout: CTL → Layout: Text
QA Contact: arthit → layout.fonts-and-text
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