Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Add underline metrics #1564

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Add underline metrics #1564

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 15 additions & 0 deletions stb_truetype.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -785,6 +785,11 @@ STBTT_DEF int stbtt_GetFontVMetricsOS2(const stbtt_fontinfo *info, int *typoAsc
STBTT_DEF void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int *y0, int *x1, int *y1);
// the bounding box around all possible characters

STBTT_DEF int stbtt_GetFontUnderlineMetrics(const stbtt_fontinfo *info, int *position, int *thickness);
// the underline position and thickness as defined in the "post" table
//
// Returns 1 on success (table present), 0 on failure.

STBTT_DEF void stbtt_GetCodepointHMetrics(const stbtt_fontinfo *info, int codepoint, int *advanceWidth, int *leftSideBearing);
// leftSideBearing is the offset from the current horizontal position to the left edge of the character
// advanceWidth is the offset from the current horizontal position to the next horizontal position
Expand Down Expand Up @@ -2657,6 +2662,16 @@ STBTT_DEF void stbtt_GetFontBoundingBox(const stbtt_fontinfo *info, int *x0, int
*y1 = ttSHORT(info->data + info->head + 42);
}

STBTT_DEF int stbtt_GetFontUnderlineMetrics(const stbtt_fontinfo *info, int *position, int *thickness)
{
int tab = stbtt__find_table(info->data, info->fontstart, "post");
if (!tab)
return 0;
*position = ttSHORT(info->data + tab + 8);
*thickness = ttSHORT(info->data + tab + 10);
return 1;
}

STBTT_DEF float stbtt_ScaleForPixelHeight(const stbtt_fontinfo *info, float height)
{
int fheight = ttSHORT(info->data + info->hhea + 4) - ttSHORT(info->data + info->hhea + 6);
Expand Down