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ESC/P: Add workaround for glyphs with negative offsets

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Fixes characters disappearing when printed very close to the paper edges
This commit is contained in:
Alexander Babikov
2023-12-25 07:06:39 +05:00
parent e812b3c3b1
commit a9d96371dc
1 changed files with 2 additions and 2 deletions
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4
src/printer/prt_escp.c
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@@ -1578,8 +1578,8 @@ handle_char(escp_t *dev, uint8_t ch)
FT_Render_Glyph(dev->fontface->glyph, FT_RENDER_MODE_NORMAL);
}
pen_x = PIXX + dev->fontface->glyph->bitmap_left;
pen_y = (uint16_t) (PIXY - dev->fontface->glyph->bitmap_top + dev->fontface->size->metrics.ascender / 64);
pen_x = PIXX + fmax(0.0, dev->fontface->glyph->bitmap_left);
pen_y = (uint16_t) (PIXY + fmax(0.0, -dev->fontface->glyph->bitmap_top + dev->fontface->size->metrics.ascender / 64));
if (dev->font_style & STYLE_SUBSCRIPT)
pen_y += dev->fontface->glyph->bitmap.rows / 2;