Many of the items below (meaning excluding the caret features and app
control of line spacing) are on my list of
things to work on.
phil
On 1/26/23 12:33 PM, Scott Palmer wrote:
[dupe of private message, now including the mailing list]
I've been using RichTextFX to make my own code editor/IDE. I see that
you have asked that project specifically on GitHub, excellent.
One thing that I wanted to do was to use a font like Fira Code that
combines characters such as != or >= into a single glyph, but there
are no APIs to request that JavaFX render those optional ligatures.
Swing APIs automatically do. In fact just implementing some basic font
selection has been tedious. Getting the font family from a Font
object and trying to use it in CSS to specify -fx-font-family simply
doesn't work sometimes. Trying to filter the list of available fonts
to show only those that are fixed-width is tedious. I tried to hack
something by measuring a couple different characters from the font
that would normally be different widths, but this is an unreliable
hack. Allowing the user to choose a preferred font and then
configuring components to use it via a CSS stylesheet is simply more
difficult than it should be.
A few years ago I contributed the changes to make the tab-width
configurable, which helped with my project a little bit. Other APIs
are needed to better control line spacing and measure font baseline
offsets and that sort of thing. I see there is an issue for
caretBlinkRate, what about changing the caret shape? E.g. block,
underscore, vertical bar, etc. Should the block be solid or an
outline? Why is caretShape read-only? Why does it return an array of
PathElements instead of simply a Shape which by default would be a
Path? More control of kerning and general spacing might be nice. I've
wanted that in the past, not for a rich text control, but for doing
video titles. I can see how the two needs overlap though. I recently
asked here about rendering emojis. That's currently very unreliable
and broken. Getting something to work consistently cross-platform is
not easy. Sometimes emojis are rendered in color, other times not.
Mac renders color emojis in gray and at the wrong size (since the
sub-pixel rendering was turned off to match macOS). On Windows the
emojis are never in color.
Regards,
Scott
On Wed, Jan 25, 2023 at 10:41 PM Scott Palmer <[email protected]> wrote:
I've been using RichTextFX to make my own code editor/IDE. I see
that you have asked that project specifically on GitHub, excellent.
One thing that I wanted to do was to use a font like Fira Code
that combines characters such as != or >= into a single glyph, but
there are no APIs to request that JavaFX render those optional
ligatures. Swing APIs automatically do. In fact just implementing
some basic font selection has been tedious. Getting the font
family from a Font object and trying to use it in CSS to specify
-fx-font-family simply doesn't work sometimes. Trying to filter
the list of available fonts to show only those that are
fixed-width is tedious. I tried to hack something by measuring a
couple different characters from the font that would normally be
different widths, but this is an unreliable hack. Allowing the
user to choose a preferred font and then configuring components to
use it via a CSS stylesheet is simply more difficult than it
should be.
A few years ago I contributed the changes to make the tab-width
configurable, which helped with my project a little bit. Other
APIs are needed to better control line spacing and measure font
baseline offsets and that sort of thing. I see there is an issue
for caretBlinkRate, what about changing the caret shape? E.g.
block, underscore, vertical bar, etc. Should the block be solid
or an outline? Why is caretShape read-only? Why does it return an
array of PathElements instead of simply a Shape which by
default would be a Path? More control of kerning and general
spacing might be nice. I've wanted that in the past, not for a
rich text control, but for doing video title. I can see how the
two needs overlap though. I recently asked here about rendering
emojis. That's currently very unreliable and broken. Getting
something to work consistently cross-platform is not easy.
Sometimes emojis are rendered in color, other times not. Mac
renders color emojis in gray and at the wrong size (since the
sub-pixel rendering was turned off to match macOS). On Windows
the emojis are never in color.
Regards,
Scott
On Wed, Jan 25, 2023 at 5:38 PM Andy Goryachev
<[email protected]> wrote:
Dear colleagues:
I am trying to identify missing public APIs needed to support
a rich text control. There is a number of tickets created
already against various parts of JavaFX, collected in
https://bugs.openjdk.org/browse/JDK-8300569 , though I suspect
this list may not be complete.
If anyone has any suggestions or requests related to the new
APIs, I would be very interested to learn the context, the
reason these APIs are needed, and whether a workaround exists.
Thank you in advance.
Cheers,
-andy
