[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2022-08-24 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

خالد حسني  changed:

   What|Removed |Added

 Resolution|--- |WONTFIX
 Status|NEW |RESOLVED

--- Comment #18 from خالد حسني  ---
I appreciate the effort, but I don’t think the proposed design is implementable
given the current architecture of the font features dialog and LibreOffice
fonts in general.

I made a few enhancements to the dialogue on top of other enchantment since
this issue was open, and I think it is in a usable state now. The UX can be
improved, but I think this is a larger effort that needs UX and dev
coordination.

Closing as WONTFIX, but anyone feel free to re-open if there is new
work/proposal.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-19 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #17 from Tobias Hemm  ---
(In reply to V Stuart Foote from comment #16)

I understand. It doesn’t make sense to implement this with another tab, if
there is more than one possible 'font' choice. Than this is off the table.

But anyway, I’m out here. I am not willing to endlessly discuss this and try to
convince you of something you don’t care about anyway. I’ve done what I could:
I’ve created images and tables, I’ve explained and clarified. If you are still
not of the opinion that my mockup is better that the current stew, I don’t know
how to help you. At some point it’s enough. I’m not willing to repeat this for
decades. Do what I suggested ... or let it be. It’s not important enough for me
to continue from here. If you need further information, just see my former
comments.

Thanks for your time. Have a nice of the latter.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-19 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #16 from V Stuart Foote  ---
(In reply to Tobias Hemm from comment #15)
> ...
> I don’t understand your constant relating this enhancement suggestion to the
> font effects. If Heiko wants to have a linking of these two things, he can
> file another report, because it has nothing to do with what I want. What I
> want – and what is definitely sensible and justified – can be seen in the
> four points of my summary. But, if I understand you correctly, you don’t see
> it the way I do. So, as these four points were my reasons to file this
> report, and since you virtually decline making changes in this regard, after
> endless beating about the bush we can consider my enhancement attempt
> cancelled, right?

No, only Heiko's thoughts on integrating 'smart font' features into the font
effects tabs is WONTFIX, while your suggestion of a dedicated tab of OpenType
features shows an incomplete grasp of how LO handles 'smart font'
features--currently just Graphite and OpenType.

Tomaž's implementation of the 'FontFeaturesDialog.cxx' correctly handles the
set of Graphite or OpenType features as extracted from each font, and would
handle Apple Advanced Type (AAT) should that be restored. Its GUI placement on
the 'Character...' dialog's 'Font' tab, colocated with each font choice
(Western, Asian (CJK), or Complex) is the most efficient and frankly
appropriate choice.

Yes, the dialog's GUI could be tweaked, but not at all clear that a table
listing all Graphite/OpenType (or even AAT) features, or individual tables by
fonttype, would make the UX any better.

As is, the dialog is populated with just the smart font features applicable to
(extracted from) the selected font--and is exposed where that font selection is
being made.  When populated in the dialog those features are being exposed as
checkboxes (boolean), or as droplist selections (enum).

The core of your request of moving the smart font "Features..." dialog onto a
Tab of its own makes no sense in context where multiple font selections are
made from the 'Font' tab. The button action launching the features dialog
belongs with the font selection, as it is now.

At some point, a more complete re-implementation of 'smart font' features might
occur--along with mechanism(s) to record those features into ODF containers. 
And that refactoring would likely include rework of the Font Effects tab. Not
the scope here.

Here, issue should be with the dialog itself. E.g. impose consistent ordering
of the boolean/enum features, provide icon representation (beyond current
feature preview provided), etc.

In other words, polish the current dialog as applicable to each font by its
supported smart font technology. The dialog could include placeholders for
unsupported smart font features--but kind of feel that would be a lot of visual
noise.  The concise dialog now is suited to task for our non-Benjamin users
that would use the font features.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-19 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #15 from Tobias Hemm  ---
(In reply to V Stuart Foote from comment #13)
> The Character dialog 'Font effects' vs font OT/Graphite smart font attributes 
> exposed
> in the 'Features...' dialog are completely different implementations.
Exactly!


> The font effects are available to essentially any font regardless of the font 
> designers 
> intent. In GUI they are presented in a dialog tab panel positioned in a 
> consistent fashion
> for all instances.
Right, and you could leave it that way.


> There is no linkage to font provided metrics and variants (eg. 
> underline/strikethrough
> /overline placement, italic/bold variants, sub script/super script position, 
> etc.) all 
> facets of the typography is handled by VCL processing of font metrics while 
> it is
> rendered to canvas.
Yes, there is no linkage. But some metrics you named are not font-provided.
LibreOffice creates underline/strikethrough/overline – just as the "Scaled
Small Capitals". Bold and italic can be font-provided, but LibreOffice also has
the capacity to "fake" it. The same holds true for Subscript and superscript.
But leave these things as they are. It’s all OK. My aim was never to link them,
but to graphically implement the OpenType features in a sensible and
well-accessible way.


> And because they are not linked to smart font features or hinting provided by 
> the font,
> the GUI and behavior of 'Font Effects' tab is consistent, for better or worse.
Yes, just leave this tab as it is.


> Implementation of Graphite font feature support, and with HarfBuzz its reuse 
> for OpenType,
> supplements the fixed set of VCL font effects per font. There is no linkage 
> of the smart
> font features, so they can not interact with the fixed set of effects without 
> major
> refactoring.
Exactly, Stuart! They are not linked; and nobody wants them to be linked. Just
leave the font effects as they are. No refactoring needed!


> Any case integrating the two, incorporating smart font features into the Font 
> effects,
> is not a trivial task ...
I guess this sentence is an answer to what Heiko keeps saying. Because, to
repeat again, incorporating smart font features into the Font effects is and
was never my concern.


> ... and because so few fonts support more than a couple of smart font 
> features (Graphite
> or OpenType) a dedicated tab for each is not warranted. Even as additional 
> changes to
> HarfBuzz expose more of the smart font features, absent major refactoring of 
> font effects,
> the best handling will remain a separate dialog populated per font with the 
> smart font
> features it supports available to select.
I don’t understand your constant relating this enhancement suggestion to the
font effects. If Heiko wants to have a linking of these two things, he can file
another report, because it has nothing to do with what I want. What I want –
and what is definitely sensible and justified – can be seen in the four points
of my summary. But, if I understand you correctly, you don’t see it the way I
do. So, as these four points were my reasons to file this report, and since you
virtually decline making changes in this regard, after endless beating about
the bush we can consider my enhancement attempt cancelled, right?

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-18 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

Heiko Tietze  changed:

   What|Removed |Added

   Keywords|needsUXEval |
 CC|libreoffice-ux-advise@lists |heiko.tietze@documentfounda
   |.freedesktop.org|tion.org

--- Comment #14 from Heiko Tietze  ---
(In reply to Tobias Hemm from comment #12)
> I would suggest now: Leave the "Font Effects" tab as it is at the moment,
> and implement another tab called "OpenType". Some Benjamins won’t be
> interested in that, since they don’t know what it means, and they don’t need
> it.

Unfortunately it's not so simple ;-)

> So let me summarize what what needs to be done:
> – move the already existing dialogue to a separate tab called "OpenType"
> – group and order the features in a sensible way
> – change some features’ activation mode to drop-downs and bullets (see list)
> – keep not available features visible, and grey them out
> 
> That’s it. No problems, no duplicates, no confusion.

By no means the UX input should be discouraging or block your work. We pondered
over the various aspects and you made a final decision with the input from UX.
Go ahead and let's talk about those details plus sensible defaults later.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-18 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #13 from V Stuart Foote  ---
The Character dialog 'Font effects' vs font OT/Graphite smart font attributes
exposed in the 'Features...' dialog are completely different implementations.

The font effects are available to essentially any font regardless of the font
designers intent. In GUI they are presented in a dialog tab panel positioned in
a consistent fashion for all instances.  

There is no linkage to font provided metrics and variants (eg.
underline/strikethrough/overline placement, italic/bold variants, sub
script/super script position, etc.) all facets of the typography is handled by
VCL processing of font metrics while it is rendered to canvas.

And because they are not linked to smart font features or hinting provided by
the font the GUI and behavior of 'Font Effects' tab is consistent, for better
or worse.

Implementation of Graphite font feature support, and with HarfBuzz its reuse
for OpenType, supplements the fixed set of VCL font effects per font. There is
no linkage of the smart font features, so they can not interact with the fixed
set of effects without major refactoring.

As implemented, the smart font 'Features...' dialog is appropriate in the GUI.
Each font exposes its own set of smart font features--Graphite, or
OpenType--and that set of features is exposed per font in the dialog via the
'Font' tab. Where the multiple dialogs are available for the three text
categories (Western, Asian, and Complex). And, OpenType support actually
remains lacking--requiring additional HarfBuzz support.

Any case integrating the two, incorporating smart font features into the Font
effects, is not a trivial task--and because so few fonts support more than a
couple of smart font features (Graphite or OpenType) a dedicated tab for each
is not warranted. Even as additional changes to HarfBuzz expose more of the
smart font features, absent major refactoring of font effects, the best
handling will remain a separate dialog populated per font with the smart font
features it supports available to select. 

On reconsideration, IMHO Tomaž, got this exactly right [1][2] and changes to
GUI should be a => WF 

[1] https://gerrit.libreoffice.org/#/c/55892/
[2] https://gerrit.libreoffice.org/#/c/55894/

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-18 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #12 from Tobias Hemm  ---
(In reply to Heiko Tietze from comment #11)

We are running in circles, Heiko. What you are afraid of is already reality,
because both kinds of Small Caps are already implemented at the moment – in
separate tabs. So, if no one complained about confusion yet, just let it be
that way if you want... or rename it if you want; it doesn’t matter to me.
That’s not my real concern. And, as I’ve already said, these two Small Caps
features are the only similar features. So, no need to be afraid of any
confusion.

I would suggest now: Leave the "Font Effects" tab as it is at the moment, and
implement another tab called "OpenType". Some Benjamins won’t be interested in
that, since they don’t know what it means, and they don’t need it. Nothing
changes for them. I also don’t come to you and say, “Heiko, I’m so confused by
the 'transparency' option, because I don’t know what it’s there for. Please,
remove it!” No. I don’t know what it is; I don’t need it; so I ignore it.

So let me summarize what what needs to be done:
– move the already existing dialogue to a separate tab called "OpenType"
– group and order the features in a sensible way
– change some features’ activation mode to drop-downs and bullets (see list)
– keep not available features visible, and grey them out

That’s it. No problems, no duplicates, no confusion.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-08 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #11 from Heiko Tietze  ---
(In reply to Tobias Hemm from comment #10)
> These two features have a clearly different effect, since these
> two kinds of small caps look absolutely different.

But whether it's simulated or not wont matter to the Benjamin users [1] who
don't care about the advanced options. I'm afraid of confusions between
OpenType "font effects" and "simulated" font effects. Your proposed renaming
might be a solution if we go with separation, meaning two tabs. If we integrate
the features it doesn't matter as non-OpenType fonts would have the same
options but simulated (or disabled if not possible). However, I understand the
additional effort and could follow the argument that mixed features leads to
confusion in the other way for experts.

[1]
https://wiki.documentfoundation.org/Design/Guidelines/HIG_foundations#Persona

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-07 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #10 from Tobias Hemm  ---
(In reply to V Stuart Foote from comment #9)

> Reality is that the vast majority of fonts have limited support for OpenType
> (even fewer with Graphite) smart font features.  Meaning the VCL font
> 'effects' must remain relevant and viable in LibreOffice ODF document
> preparation.
They can remain relevant. I just wanted to say that there are no real
duplicates, since "hidden" is no OpenType feature and "Small capitals" in fact
also isn’t. A re-name of the latter to e.g. "Scaled Small Capitals" would
clarify that.


> And, as implemented we include Graphite/OpenType features into ODF by
> annotation of font names recorded to style with the feature to be
> rendered--so one might call that a 'fake feature'. But myself, I am happy to
> now have the ability to utilize the smart font features with fonts that
> support them.
I think there is a misunderstanding, Stuart. What I’ve called a “fake feature”
is the feature “Small capitals” from the “Font Effects” tab, whereby
LibreOffice scales down capitals to small capitals. This creates fake Small
Caps. It would have been clearer if I had called it “Fake Small Caps” instead
of a “fake feature”. The feature itself is, of course, real.
As opposed to this, there is an OpenType feature called “Small Caps” (smcp)
which accesses forms that were originally drawn by the creator of the typeface.
These two features have a clearly different effect, since these two kinds of
small caps look absolutely different.
I don’t know how you implement these technically. I just wanted to point out
that they are not the same, and therefore they should in any case be
segregated. But you can, of course, keep the one that creates fake small caps.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-06 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #9 from V Stuart Foote  ---
(In reply to Tobias Hemm from comment #8)
>...
> If you mean the feature "Hidden" from the tab "Font Effects": I don’t care
> what happens to it. I can’t imagine what one would need it for. And it’s
> definitely not needed in the OpenType tab. So I think there will be no "two
> sets", if that’s what you mean, because – as I said – the feature "Small
> capitals" under "Font Effects" is a fake feature anyway. You can keep it
> implemented, but I, personally, wouldn’t use it at all. Typographers don’t
> use it, because it looks ugly. And the feature "All Capitals" can be in
> either tab. It doesn’t matter, where.
>...

Reality is that the vast majority of fonts have limited support for OpenType
(even fewer with Graphite) smart font features.  Meaning the VCL font 'effects'
must remain relevant and viable in LibreOffice ODF document preparation.

And, as implemented we include Graphite/OpenType features into ODF by
annotation of font names recorded to style with the feature to be rendered--so
one might call that a 'fake feature'. But myself, I am happy to now have the
ability to utilize the smart font features with fonts that support them.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-06 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #8 from Tobias Hemm  ---
I think I understood you now, Heiko. Is the following what you meant?

> Alternatively I could imagine a layout similar to the "area fill" dialog, 
> with buttons that switch between independent options. But "hidden" – to pick 
> just one option from the standard font [effects] – wouldn't be available 
> under open font [OpenType] then (or we have to duplicate the checkbox there).
I guess, when you say "open font", you mean "OpenType".
It’s partly hard for me to understand you, Heiko. Can you make yourself a
little clearer, please?

If you mean the feature "Hidden" from the tab "Font Effects": I don’t care what
happens to it. I can’t imagine what one would need it for. And it’s definitely
not needed in the OpenType tab. So I think there will be no "two sets", if
that’s what you mean, because – as I said – the feature "Small capitals" under
"Font Effects" is a fake feature anyway. You can keep it implemented, but I,
personally, wouldn’t use it at all. Typographers don’t use it, because it looks
ugly. And the feature "All Capitals" can be in either tab. It doesn’t matter,
where.

Does that clarify for you, what I mean?


> I prefer an integration and merged functionality with small caps taken from 
> the font or computed if not available.
I wouldn’t do that. At first, this idea sounds practical. But I would clearly
segregate these two features and call the feature "Small capitals" in "Font
Effects" something like "False Small Caps" or "Scaled Small Caps", because
that’s what LibreOffice does – scale the Capitals down.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-06 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #7 from Tobias Hemm  ---
> ... to improve the usability I suggest to show icons of the effect next to 
> the option.
That’s a nice idea, Heiko. I would nevertheless add tooltips on mouse hover,
since icons are not always self-explanatory. If you need inspiration for the
icons, see for example the following link under the tab "OpenType":
https://www.linotype.com/de/413872/arno-schriftfamilie.html

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-06 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #6 from Heiko Tietze  ---
(In reply to Tobias Hemm from comment #5)
>> But "hidden", to pick just one option from the standard font, wouldn't be 
>> available
> I don’t understand what you mean.

If the two sets are made exclusive available you have access to only one of
them and that makes hidden or any other non-openfont specific feature
disappear. I prefer an integration and merged functionality with small caps
taken from the font or computed if not available.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-06 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

--- Comment #5 from Tobias Hemm  ---
Thanks for your quick replies!

@Stuart: You are right, what was said in bug 58941 is basically what I wanted.
There are many great suggestions. I didn’t find that report when I was
searching. And furthermore it is almost impossible to follow by now, as it was
already said. People got lost in incidentals, and the great suggestions from
2013 (!) were "forgotten".

@Heiko: You say:

>> Wouldn't use a tab for it. At least some of the attributes duplicate what we 
>> have on the font effects tab. The best solution is to have all options 
>> together ... <<

Right, but there are not really duplicates. Consider that the "Small Caps" in
the "Font Effects" tab is not the same as the OpenType feature "Small Caps".
Through the LO function "Small Caps" in the "Font Effects", LO creates fake
small caps. This is not a real OpenType feature. The "All Capitals" is not
really an OpenType feature, too, and could be in one or the other tab – I think
that’s not that important. So all options would be togehter in one tab.

One reason why I would group them and leave not-available ones there is that it
helps to orient. It is confusing if the features are always in a different
place, depending on the font. It’s not that many features after all, as you see
in my demonstration image, so I think all features can stay there. As you said,
maybe we could work with expanders. There were many great solutions in the bug
report 58941.


>> ... as an ordinary user I don't care about open font, and to disable what 
>> doesn't apply.<<

I respect your opinion, but I think every user uses different functions, and as
you have your range of use, others have theirs. In my opinion, if "Hyperlink",
"Font Effects" and "Position" have separate tabs, content-wise "Font Features"
deserves one as well. And I, as a more advanced user, don’t care about
Hyperlinks for example. There is also a separate tab for "Highlighting". I
think it’s superfluous. I’ve never used it. But maybe that’s only my opinion.


>> The four column layout is against the HIG ... <<

Ok, that was just a suggestion. You can make two, three, five or seven columns.


>> As this is quite a lot of options we may hide some under expander and use a 
>> scrollwindow to show everything in limited space. <<

Maybe, but I think a separate tab that can be scrolled (if necessary) or the
use of expanders would be better, since the features would be quicker
accessible, or we use the following ...


>> Alternatively I could imagine a layout similar to the area fill dialog with 
>> buttons that switch between independent options. <<

I can imagine that this would be a good solution, too.


>> But "hidden" to pick just one option from the standard font wouldn't be 
>> available under open font then (or we have to duplicate the checkbox there). 
>> <<

I don’t understand what you mean.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-06 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

Heiko Tietze  changed:

   What|Removed |Added

 CC|heiko.tietze@documentfounda |libreoffice-ux-advise@lists
   |tion.org|.freedesktop.org
   Keywords||needsUXEval

--- Comment #4 from Heiko Tietze  ---
Wouldn't use a tab for it. At least some of the attributes duplicate what we
have on the font effects tab. The best solution is to have all options
together, as an ordinary user I don't care about open font, and to disable what
doesn't apply.

The four column layout is against the HIG and you may run into trouble with
long terms when translated. As this is quite a lot of options we may hide some
under expander and use a scrollwindow to show everything in limited space.

Alternatively I could imagine a layout similar to the area fill dialog with
buttons that switch between independent options. But "hidden" to pick just one
option from the standard font wouldn't be available under open font then (or we
have to duplicate the checkbox there).

Last but not least I like the mockup and to improve the usability I suggest to
show icons of the effect next to the option.

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[Libreoffice-bugs] [Bug 129219] Further refinement of OpenType/Graphite Font features in the “Character” dialogue

2019-12-05 Thread bugzilla-daemon
https://bugs.documentfoundation.org/show_bug.cgi?id=129219

V Stuart Foote  changed:

   What|Removed |Added

 CC||dr.khaled.ho...@gmail.com,
   ||heiko.tietze@documentfounda
   ||tion.org,
   ||martin_hos...@sil.org,
   ||qui...@gmail.com,
   ||vstuart.fo...@utsa.edu
 Status|UNCONFIRMED |NEW
   See Also||https://bugs.documentfounda
   ||tion.org/show_bug.cgi?id=58
   ||941
Summary|Different Implementation of |Further refinement of
   |OpenType Font Features in   |OpenType/Graphite Font
   |the “Character” Dialogue|features in the “Character”
   ||dialogue
 Blocks||71732
Version|6.2.8.2 release |6.2.0.3 release
 Ever confirmed|0   |1

--- Comment #3 from V Stuart Foote  ---
The work referred to was done for bug 58941

Example panels from other applications for handling OpenType features, and some
relevant discussion of technical limitations of current Graphite modeled
solution implemented with HarfBuzz libs. 

But sure, probably room for additional refinement of the GUI.

@Hieko, should this go through additional UX/Design work-up? Or, just leave it
to our sage devs...


Referenced Bugs:

https://bugs.documentfoundation.org/show_bug.cgi?id=71732
[Bug 71732] [META] Bugs related to text rendering, typography and font features
in LO
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