font name revert to default after image restart and won't use name provided.

[rvillemeur]

Using this script to display Emoji from 'Noto Color Emoji'. The first time, you get a grid of Emoji (hopefully in color).

Save and close the image. Reopen it and re-execute the script, you'll get

It look like it will default to Source Sans Pro (the default one in Bloc)

Behavior reproduced using Pharo 12, Windows 11 or Linux Fedora 41

| container |
container := BlElement new
				 border: (BlBorder paint: Color red width: 1);
				 background: (Color white);
				 layout: BlFlowLayout horizontal;
				 constraintsDo: [ :c |
					 c horizontal matchParent.
					 c vertical fitContent ].

"Noto Color Emoji has 2668 different glyph"

16r1F600 to: 16r1F64F do: [ :each |
	| elt |
	elt := BlTextElement text: ((Unicode value: each) asRopedText
					fontSize: 40;
					fontName: 'Noto Color Emoji').
	elt
		padding: (BlInsets all: 5);
		border: (BlBorder paint: Color black width: 1).

	container addChild: elt ].

"container openInNewSpace."
^ container

Reseting and scanning for system font doesn't change the behavior

[rvillemeur]

after a fresh install of bloc

after image restart

Updating the font from system doesn't solve the problem

[tinchodias]

Yes, this is not only for Noto Color Emoji. Example with other font:

Load the testing fonts with this script:

"
AeFontManager resetGlobalInstance.
AeFontManager globalInstance scanDirectory: AeFilesystemResources fontsDirectory
"

Then inspect this:

| text |
text := 'office' asRopedText
			        fontSize: 40;
			        fontName: 'Inria Serif';
			yourself.
BlTextElement text: text.

Then Save&Close, and reopen the image. The inspected form will look as with default font (Source Sans Pro), instead of Intia Serif, until you re-scan the tests fontDirectory.

[tinchodias]

@rvillemeur my idea to fix this issue is changing the font manager to automatically reload fonts on image startup. The user would have System Settings to be able to:

• disable that automatic reload,
• manage what are the directories to scan
• which is the default font and default code font (now hardcoded).

I commented details of this idea in Alexandrie's issue 31.

[rvillemeur]

Add @Ducasse, If I remember well, font handling was a challenge in previous version of Pharo (and still is in some scenario). He may have some concern to share, given Bloc/Alexandrie is the future graphical stack.