add fallback character when a character is missing from custom font #13070
+38
−11
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This closes the good first issue #12975
Added an option to show the fallback character when a character from custom font is missing.
Added a new a field in GlyphManager class, enableFallbackGlyph which if set to true, will replace the missing characters with ? of that font stack
If we have enabled this option, then if no character of that font stack is present between unicode id 0 and 255, then we would load 0-255.pbf file of that font stack so that we retrieve the glyph of ? of that fontstack and show that as fallback if any character is missing