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feat: Support for Korean line breaks and glyph spacing (#2288)

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Co-authored-by: Uri Tauber <uritaube@gmail.com>
This commit is contained in:
Justin Mitchell
2026-06-17 17:27:03 +03:00
committed by GitHub
co-authored by Uri Tauber
parent d4069aeae5
commit 22f3575064
16 changed files with 443 additions and 121 deletions
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lib/GfxRenderer/GfxRenderer.cpp
+10
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@@ -1437,8 +1437,18 @@ int GfxRenderer::getTextAdvanceX(const int fontId, const char* text, EpdFontFami
int32_t widthFP = 0;
const bool isSupSub = (style & (EpdFontFamily::SUP | EpdFontFamily::SUB)) != 0;
const uint8_t styleIdx = resolveSdCardStyle(*sdIt->second, style);
const auto fontIt = fontMap.find(fontId);
if (fontIt == fontMap.end()) {
LOG_ERR("GFX", "Font %d not found", fontId);
return 0;
}
const auto& font = fontIt->second;
while (uint32_t cp = utf8NextCodepoint(reinterpret_cast<const uint8_t**>(&text))) {
int32_t advFP = sdIt->second->getAdvance(cp, styleIdx);
if (advFP == 0 && !utf8IsCombiningMark(cp)) {
const EpdGlyph* glyph = font.getGlyph(cp, style);
advFP = glyph ? glyph->advanceX : 0;
}
widthFP += isSupSub ? (advFP + 1) / 2 : advFP;
}
return fp4::toPixel(widthFP);