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authoreunhhu <[email protected]>2026-09-27 23:12:16 +0100
committereunhhu <[email protected]>2026-09-27 23:12:16 +0100
commit0d9d4c50bbd4a33a309ccb498b6bc55509c1dfed (patch)
treefea456a0da127cb40897ecf29191d5fb8f777347 /symbols/symbols.h
parent7b93a66dbffaf2b20b0a1925786f56db54066c9b (diff)
downloadvega-0d9d4c50bbd4a33a309ccb498b6bc55509c1dfed.tar.gz
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Centre a wide character's glyph in its two cells
A Hangul or CJK glyph is one em across, less than two cells of a monospace Latin font (1.2 em for DejaVu Sans Mono), and was drawn from the left of its cells, so syllables stood apart unevenly. A cached glyph now keeps its advance in pixels, and a wide character's glyph is drawn centred in its two cells.
Diffstat (limited to 'symbols/symbols.h')
-rw-r--r--symbols/symbols.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/symbols/symbols.h b/symbols/symbols.h
index 0af3412..32f48d0 100644
--- a/symbols/symbols.h
+++ b/symbols/symbols.h
@@ -62,7 +62,8 @@ void vega_symbol_raster(const VegaSymbols *, const VegaSymbol *, double scale, d
/* Symbols drawn once at one scale and kept, for surfaces that compose them
* on the CPU: each the first time it is asked for. */
-typedef struct { VegaPlace place; const unsigned char *pixels; } VegaBitmap; /* pixels: place.width per row */
+/* pixels: place.width per row; advance: how far the pen moves after it, in whole pixels */
+typedef struct { VegaPlace place; const unsigned char *pixels; int advance; } VegaBitmap;
typedef struct VegaGlyphs VegaGlyphs;
VegaGlyphs *vega_glyphs_open(const VegaSymbols *, float scale);
/* The bitmap of code, or NULL when the file has no such symbol. */