Simone Rondelli created FOP-2650:
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Summary: Cache CustomFont instances
Key: FOP-2650
URL: https://issues.apache.org/jira/browse/FOP-2650
Project: FOP
Issue Type: Improvement
Components: font/unqualified
Reporter: Simone Rondelli
Priority: Minor
Custom fonts are loaded through the {{FontLoader}} class on every rendering
(for every renderer). For big font files (Eg. Chinese/Japanese/Korean fonts)
this can be a really CPU intensive operation.
The aim of this improvement is to implement a cache mechanism that will cache
the Font Instances or the informations contained into them.
NB: The class {{Typeface}} has a {{charMapOps}} field that keeps track of the
usage of the font during the rendering. This field is used in
{{PDFResource.addFonts()}} to determine whether to include the Font into the
PDF file. Caching this value will lead to problems.
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