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text/v2: add comments to CacheGlyphs

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Hajime Hoshi 2024-10-25 17:41:24 +09:00
parent 9449e0a8a6
commit 0da99e2c37
1 changed files with 3 additions and 0 deletions
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text/v2/text.go
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@ -255,6 +255,9 @@ func Measure(text string, face Face, lineSpacingInPixels float64) (width, height
// Draw and AppendGlyphs automatically create and cache necessary glyphs, so usually you don't have to call CacheGlyphs explicitly. // Draw and AppendGlyphs automatically create and cache necessary glyphs, so usually you don't have to call CacheGlyphs explicitly.
// If you really care about the performance, CacheGlyphs might be useful. // If you really care about the performance, CacheGlyphs might be useful.
// //
// CacheGlyphs is pretty heavy since it creates all the possible variations of glyphs.
// Call CacheGlyphs only when you really need it.
//
// CacheGlyphs is concurrent-safe. // CacheGlyphs is concurrent-safe.
func CacheGlyphs(text string, face Face) { func CacheGlyphs(text string, face Face) {
var x, y float64 var x, y float64