SFSymbols?

[mikael]

Anyone with the latest beta, can you use the new symbol set that comes with iOS 13, e.g.:

i = ui.Image('lessthan.circle')

[JonB]

FWIW:

from ui import *
from objc_util import *
uiimage=ObjCClass('UIImage')
v=Image.named('test:Lenna')
u=uiimage.systemImageNamed_('lessthan.circle')
v.objc_instance._setImageAsset_(u.imageAsset())

Leading underscore did the trick, iPadOS 13.1.3.
Maybe not the most future proof, but does the job...

[cvp]

@JonB As usual, you're the 🤴

[mikael]

@JonB, thanks. Intuitively this seems like it should be faster and more efficient than going via the PNG conversion.

But when I went to test the performance I ran into a couple of issues with the asset approach:

• Resulting image size is dependent on the size of the original ui.Image created.
• Both the original and ”asset-applied” images are retained in the ui.Image somehow, and for example ButtonItems do not really handle that well.

See below couple of example images. First one uses a too-large initializing picture (Lenna), the second too small one (triangle arrow icon), which you can see presented in the title area.

[cvp]

@mikael your module now crashes with

Traceback (most recent call last):
  File "/private/var/mobile/Containers/Shared/AppGroup/668A7D98-7216-47ED-917D-AA0B6173167E/Pythonista3/Documents/MesTests/sfsymbol.py", line 233, in <module>
    data_source = symbol_table.data_source = SymbolSource(root, symbol_table)
  File "/private/var/mobile/Containers/Shared/AppGroup/668A7D98-7216-47ED-917D-AA0B6173167E/Pythonista3/Documents/MesTests/sfsymbol.py", line 76, in __init__
    image=SymbolImage('arrow.left', 8, weight=THIN),
  File "/private/var/mobile/Containers/Shared/AppGroup/668A7D98-7216-47ED-917D-AA0B6173167E/Pythonista3/Documents/MesTests/sfsymbol.py", line 27, in SymbolImage
    conf = UIImageSymbolConfiguration.configurationWithConfiguration_and_(
  File "/var/containers/Bundle/Application/34BAEE1A-BC33-4D6F-A0C1-B733E4991F31/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/objc_util.py", line 445, in __getattr__
    cached_method = ObjCClassMethod(self, attr)
  File "/var/containers/Bundle/Application/34BAEE1A-BC33-4D6F-A0C1-B733E4991F31/Pythonista3.app/Frameworks/Py3Kit.framework/pylib/site-packages/objc_util.py", line 752, in __init__
    raise AttributeError('No class method found for selector "%s"' % (self.sel_name))
AttributeError: No class method found for selector "configurationWithConfiguration:and:"

[mikael]

@cvp, yes, just noticed. iOS 14 must’ve changed it. Will take a look.

[cvp]

@mikael 900 added symbols in iOS 14 see here

[mikael]

@cvp, here’s the relevant code if you want to do a manual quick fix. Will push an update to PyPI soon.

    ...
    if point_size is not None:
        conf = conf.configurationByApplyingConfiguration_(
                UIImageSymbolConfiguration.configurationWithPointSize_(point_size))
    if weight is not None:
        conf = conf.configurationByApplyingConfiguration_(
            UIImageSymbolConfiguration.configurationWithWeight_(weight))
    if scale is not None:
        conf = conf.configurationByApplyingConfiguration_(
            UIImageSymbolConfiguration.configurationWithScale_(scale))
    objc_image = objc_image.imageByApplyingSymbolConfiguration_(conf)
    ...

[mikael]

@cvp, for the new symbols, I found a downloadable list of changes, but no list of new icons or an updated master list.

[cvp]

@mikael said:

if you want to do a manual quick fix.

Seems ok

[cvp]

@mikael dis you see? Even colored ones

[7upser]

If someone interested in a list of string, here we go

import plistlib
import io

vFilePath = '/System/Library/CoreServices/CoreGlyphs.bundle/symbol_order.plist'

with open(vFilePath, 'rb') as vFile:
    vFileObject = io.BytesIO(vFile.read())
vJsonSFSymbols = plistlib.load(vFileObject)

for vIndex, vJsonSFSymbol in enumerate(vJsonSFSymbols):
    print(str(vIndex).zfill(4), vJsonSFSymbol)

[mikael]

@7upser, excellent! I ran a quick comparison, and the plist list has all the symbols that the ”manual” list had, plus 162 additional symbols all ending in one of: ar, he, hi, ja, ko, zh or rtl, which I take to be additional language-based versions.

With this, when I have a moment, I can probably change the symbol browser to show whatever you have available in your iOS version, rather than relying on a manually updated list. What seems to be missing, though, is the marker for the symbols that Apple says must not be used outside their Apple context (like ”airpods”).

[7upser]

I'm missing the Categories for SF Symbols.
I think there are only Categories in the Mac App.
I found two older version and a Screenshot for the new Gaming Cat.
I add some cats for newer Symbols, but didn't finished.
This is what i have (with Pythonista Symbols and Emojis)

Icons.json

Names of restricted Symbols are here:
/System/Library/CoreServices/CoreGlyphs.bundle/symbol_restrictions.strings
(also a plist file)