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Invalidate existing paragraphs when new fonts are loaded

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This commit is contained in:
Héctor Ramón Jiménez 2023-09-09 11:21:32 +02:00
parent 837529bc99
commit 3450987355
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GPG key ID: 140CC052C94F138E
6 changed files with 127 additions and 33 deletions
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23
graphics/src/renderer.rs
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@ -162,6 +162,29 @@ where
text::Paragraph::with_text(text, self.backend.font_system())
}
fn update_paragraph(
&self,
paragraph: &mut Self::Paragraph,
text: Text<'_, Self::Font>,
) {
let font_system = self.backend.font_system();
if paragraph.version() != font_system.version() {
// The font system has changed, paragraph fonts may be outdated
*paragraph = self.create_paragraph(text);
} else {
match core::text::compare(paragraph, text) {
core::text::Difference::None => {}
core::text::Difference::Bounds => {
self.resize_paragraph(paragraph, text.bounds);
}
core::text::Difference::Shape => {
*paragraph = self.create_paragraph(text);
}
}
}
}
fn resize_paragraph(
&self,
paragraph: &mut Self::Paragraph,