diff options
| author | Liu Kunpeng(柳鲲鹏) <liukunpeng@ts-it.cn> | 2022-10-16 22:10:19 -0400 |
|---|---|---|
| committer | Alexei Podtelezhnikov <apodtele@gmail.com> | 2022-10-16 22:10:19 -0400 |
| commit | bb59c3c958cac48044dc5ce3c0a393196c627974 (patch) | |
| tree | d274e1f5010d0f431357e914d2dcac45394cd455 | |
| parent | 3ab1875cd22536b3d715b3b104b7fb744b9c25c5 (diff) | |
| download | freetype2-bb59c3c958cac48044dc5ce3c0a393196c627974.tar.gz | |
* src/base/ftsynth.c (FT_GlyphSlot_Slant): New API with custom slant.
* include/freetype/ftsynth.h (FT_GlyphSlot_Slant): Declare it.
| -rw-r--r-- | include/freetype/ftsynth.h | 7 | ||||
| -rw-r--r-- | src/base/ftsynth.c | 16 |
2 files changed, 18 insertions, 5 deletions
diff --git a/include/freetype/ftsynth.h b/include/freetype/ftsynth.h index afc40b1d8..013f1cc78 100644 --- a/include/freetype/ftsynth.h +++ b/include/freetype/ftsynth.h @@ -68,10 +68,15 @@ FT_BEGIN_HEADER FT_EXPORT( void ) FT_GlyphSlot_Embolden( FT_GlyphSlot slot ); - /* Slant an outline glyph to the right by about 12 degrees. */ + /* Slant an outline glyph to the right by about 12 degrees. */ FT_EXPORT( void ) FT_GlyphSlot_Oblique( FT_GlyphSlot slot ); + /* Slant an outline glyph by a given sine of an angle. */ + FT_EXPORT( void ) + FT_GlyphSlot_Slant( FT_GlyphSlot slot, + FT_Fixed slant ); + /* */ diff --git a/src/base/ftsynth.c b/src/base/ftsynth.c index 10bbe0dfd..fd595e118 100644 --- a/src/base/ftsynth.c +++ b/src/base/ftsynth.c @@ -46,6 +46,16 @@ FT_EXPORT_DEF( void ) FT_GlyphSlot_Oblique( FT_GlyphSlot slot ) { + FT_GlyphSlot_Slant( slot, 0x0366A ); + } + + + /* documentation is in ftsynth.h */ + + FT_EXPORT_DEF( void ) + FT_GlyphSlot_Slant( FT_GlyphSlot slot, + FT_Fixed slant ) + { FT_Matrix transform; FT_Outline* outline; @@ -61,13 +71,11 @@ /* we don't touch the advance width */ - /* For italic, simply apply a shear transform, with an angle */ - /* of about 12 degrees. */ - + /* For italic, simply apply a shear transform */ transform.xx = 0x10000L; transform.yx = 0x00000L; - transform.xy = 0x0366AL; + transform.xy = slant; transform.yy = 0x10000L; FT_Outline_Transform( outline, &transform ); |