/* m17n-flt.h -- header file for the FLT API of the m17n library.
- Copyright (C) 2007
+ Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012
National Institute of Advanced Industrial Science and Technology (AIST)
Registration Number H15PRO112
#endif
-/***en @defgroup m17nFLT FLT API */
-/***ja @defgroup m17nFLT FLT API */
+/***en @defgroup m17nFLT FLT API
+ @brief API provided by libm17n-flt.so */
+/***ja @defgroup m17nFLT FLT API
+ @brief libm17n-flt.so ¤¬Ä󶡤¹¤ë API */
/*=*/
/*** @addtogroup m17nFLT */
·¿ #MFLTGlyph ¤Ï¡¢¥°¥ê¥Õ¤Ë´Ø¤¹¤ë¾ðÊó¤ò³ÊǼ¤¹¤ë¹½Â¤ÂΤǤ¢¤ë¡£ */
-typedef struct _MFLTGlyph MFLTGlyph;
-
-struct _MFLTGlyph
+typedef struct
{
/***en Character code (Unicode) of the glyph. This is the sole
member to be set before calling the functions mflt_find () and
fractional pixel format. */
/***ja ½Ä½ñ¤»þ¤ÎÁ÷¤ê¹â¤ò 26.6 fractional pixel format ¤Çɽ¸½¤·¤¿¤â¤Î¡£ */
int yadv;
+ /* @{ */
/***en Ink metrics of the glyph expressed in 26.6 fractional pixel
format. */
/***ja ¤³¤Î¥°¥ê¥Õ¤Î¥¤¥ó¥¯¥á¥È¥ê¥Ã¥¯¤ò 26.6 fractional pixel format
¤Çɽ¸½¤·¤¿¤â¤Î¡£ */
int ascent, descent, lbearing, rbearing;
+ /* @} */
+ /* @{ */
/***en Horizontal and vertical adjustments for the glyph positioning
expressed in 26.6 fractional pixel format. */
/***ja ¥°¥ê¥Õ°ÌÃÖ·è¤á¤ÎºÝ¤Î¿åÊ¿¡¦¿âľĴÀ°Ãͤò¡¢
26.6 fractional pixel format ¤Çɽ¸½¤·¤¿¤â¤Î¡£ */
int xoff, yoff;
- /***en Flag to tell whether the member <code> has already been set
+ /* @} */
+ /***en Flag to tell whether the member \<code\> has already been set
to a glyph ID in the font. */
- /***ja ¥á¥ó¥Ð¡¼ <code> ¤Ë´û¤Ë¥°¥ê¥Õ ID
+ /***ja ¥á¥ó¥Ð¡¼ \<code\> ¤Ë´û¤Ë¥°¥ê¥Õ ID
¤¬¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤ë¤«Èݤ«¤ò¼¨¤¹¥Õ¥é¥°¡£ */
unsigned encoded : 1;
- /***en Flag to tell if the metrics of the glyph (members <xadv> thru
- <rbearing>) are already calculated. */
- /***ja ¥á¥ó¥Ð¡¼ <xadv> ¤«¤é <rbearing>
+ /***en Flag to tell if the metrics of the glyph (members \<xadv\> thru
+ \<rbearing\>) are already calculated. */
+ /***ja ¥á¥ó¥Ð¡¼ \<xadv\> ¤«¤é \<rbearing\>
¤Þ¤Ç¤Î³Æ¥á¥È¥ê¥Ã¥¯¤¬´û¤Ë·×»»ºÑ¤«Èݤ«¤ò¼¨¤¹¥Õ¥é¥°¡£ */
unsigned measured : 1;
/***en Flag to tell if the metrics of the glyph is adjusted,
- i.e. <xadv> or <yadv> is different from the normal size, or
- <xoff> or <yoff> is nonzero. */
+ i.e. \<xadv\> or \<yadv\> is different from the normal size, or
+ \<xoff\> or \<yoff\> is nonzero. */
/***ja ¥°¥ê¥Õ¤Î¥á¥È¥ê¥Ã¥¯¤¬Ä´À°ºÑ¤ß¤«Èݤ«¡¢
¤¹¤Ê¤ï¤Á°Ê²¼¤Î¤¦¤Á1¤Ä°Ê¾å¤¬À®Î©¤·¤Æ¤¤¤ë¤³¤È¤ò¼¨¤¹¥Õ¥é¥°¡£
- <xadv> ¤¬É¸½à¤ÎÃͤȰۤʤ롢
- <yadv> ¤¬É¸½à¤ÎÃͤȰۤʤ롢
- <xoff> ¤¬¥¼¥í¤Ç¤Ê¤¤¡¢
- <yoff> ¤¬¥¼¥í¤Ç¤Ê¤¤¡£ */
+ \<xadv\> ¤¬É¸½à¤ÎÃͤȰۤʤ롢
+ \<yadv\> ¤¬É¸½à¤ÎÃͤȰۤʤ롢
+ \<xoff\> ¤¬¥¼¥í¤Ç¤Ê¤¤¡¢
+ \<yoff\> ¤¬¥¼¥í¤Ç¤Ê¤¤¡£ */
unsigned adjusted : 1;
/***en For m17n-lib's internal use only. */
/***ja m17n-lib ÆâÉôºî¶ÈÍÑ¡£ */
unsigned internal : 30;
/* Arbitrary data can follow. */
-};
+} MFLTGlyph;
/*=*/
The type #MFLTGlyphAdjustment is the structure to store
information about a glyph metrics/position adjustment. It is
- given to the callback function #drive_otf of #MFLTFont. */
+ given to the callback function @b drive_otf of #MFLTFont. */
/***ja
@brief ¥°¥ê¥Õ°ÌÃÖÄ´À°¾ðÊó¤Î¤¿¤á¤Î·¿.
·¿ #MFLTGlyphAdjustment
¤Ï¡¢¥°¥ê¥Õ¤Î¥á¥È¥ê¥Ã¥¯/°ÌÃÖ¤ÎÄ´À°¤Ë´Ø¤¹¤ë¾ðÊó¤ò³ÊǼ¤¹¤ë¤¿¤á¤Î¹½Â¤ÂΤǤ¢¤ê¡¢
- #MFLTFont ¤Î callback ´Ø¿ô #drive_otf ¤ËÅϤµ¤ì¤ë¡£ */
-
-typedef struct _MFLTGlyphAdjustment MFLTGlyphAdjustment;
+ #MFLTFont ¤Î callback ´Ø¿ô @b drive_otf ¤ËÅϤµ¤ì¤ë¡£ */
-struct _MFLTGlyphAdjustment
+typedef struct
{
+ /* @{ */
/***en Adjustments for advance width for horizontal layout and
advance height for vertical layout expressed in 26.6 fractional
pixel format. */
/***ja ¿åÊ¿¡¦¿âľÊý¸þ¤ÎÁ÷¤êÎ̤ÎÄ´À°Ãͤò 26.6 fractional pixel format
¤Çɽ¸½¤·¤¿¤â¤Î¡£ */
int xadv, yadv;
+ /* @} */
+ /* @{ */
/***en Horizontal and vertical adjustments for glyph positioning
expressed in 26.6 fractional pixel format. */
/***ja ¥°¥ê¥Õ°ÌÃÖ·è¤á¤¿¤á¤Î¿åÊ¿¡¦¿âľĴÀ°Ãͤò 26.6 fractional pixel
format ¤Çɽ¸½¤·¤¿¤â¤Î¡£ */
int xoff, yoff;
+ /* @} */
/***en Number of glyphs to go back for drawing a glyph. */
/***ja ¥°¥ê¥ÕÉÁ²è¤Î¤¿¤á¤ËÌá¤ë¤Ù¤¥°¥ê¥Õ¿ô¡£ */
short back;
- /***en If nonzero, the member <xadv> and <yadv> are absolute, i.e.,
+ /***en If nonzero, the member \<xadv\> and \<yadv\> are absolute, i.e.,
they should not be added to a glyph's origianl advance width and
height. */
- /***ja Èó¥¼¥í¤Î¤È¤¡¢¥á¥ó¥Ð¡¼ <xadv> ¤È <yadv> ¤ÏÀäÂÐÃͤǤ¢¤ë¡£
+ /***ja Èó¥¼¥í¤Î¤È¤¡¢¥á¥ó¥Ð¡¼ \<xadv\> ¤È \<yadv\> ¤ÏÀäÂÐÃͤǤ¢¤ë¡£
¤¹¤Ê¤ï¤Á¤½¤ÎÃͤò¥°¥ê¥ÕËÜÍè¤ÎÁ÷¤êÉý¤Ë²Ã»»¤·¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£ */
unsigned advance_is_absolute : 1;
/***en Should be set to 1 iff at least one of the other members has
a nonzero value. */
/***ja ¾¤Î¥á¥ó¥Ð¡¼¤Î¤¦¤ÁºÇÄã1¸Ä¤¬Èó¥¼¥í¤Î¤È¤¤Î¤ß¡¢1¤Ë¥»¥Ã¥È¤µ¤ì¤ë¡£ */
unsigned set : 1;
-};
+} MFLTGlyphAdjustment;
+
+/*=*/
/***en
@brief Type of information about a glyph sequence.
·¿ #MFLTGlyphString ¤Ï¡¢¥°¥ê¥ÕÎó¤Î¾ðÊó¤ò³ÊǼ¤¹¤ë¤¿¤á¤Î¹½Â¤ÂΤǤ¢¤ë¡£ */
-typedef struct _MFLTGlyphString MFLTGlyphString;
-
-struct _MFLTGlyphString
+typedef struct
{
/***en The actual byte size of elements of the array pointed by the
member #glyphs. It must be equal to or greater than "sizeof
or not. */
/***ja ¥°¥ê¥Õ¤¬±¦¤«¤éº¸¤Ø¤ÈÉÁ¤«¤ì¤ë¤Ù¤¤«Èݤ«¤ò¼¨¤¹¥Õ¥é¥°¡£ */
unsigned int r2l;
-};
+} MFLTGlyphString;
+
+/*=*/
/***en
@brief Type of specification of GSUB and GPOS OpenType tables.
The type #MFLTOtfSpec is the structure that contains information
about the GSUB and GPOS features of a specific script and language
- system to be applied to a glyph sequence. */
+ system. The information is used to select which features to
+ apply to a glyph string, or to check if a specific FLT is usable
+ for a specific font. */
/***ja
@brief GSUB ¤ª¤è¤Ó GPOS OpenType ¥Æ¡¼¥Ö¥ë¤Î»ÅÍͤΤ¿¤á¤Î·¿.
- ·¿ #MFLTOtfSpec ¤Ï¡¢GSUB ¤ª¤è¤Ó GPOS
- ¥Õ¥£¡¼¥Á¥ã¡¼¤Î¾ðÊó¤ò³ÊǼ¤¹¤ë¤¿¤á¤Î¹½Â¤ÂΤǤ¢¤ë¡£
- ¤³¤ì¤é¥Õ¥£¡¼¥Á¥ã¡¼¤ÏÆÃÄê¤Î¥¹¥¯¥ê¥×¥È¤ª¤è¤Ó¸À¸ì¥·¥¹¥Æ¥à¤Î¤â¤Î¤Ç¤¢¤ê¡¢¥°¥ê¥ÕÎó¤ËŬÍѤµ¤ì¤ë¡£ */
+ ·¿ #MFLTOtfSpec ¤Ï¡¢GSUB ¤ª¤è¤Ó GPOS¥Õ¥£¡¼¥Á¥ã¡¼¤Î¾ðÊó¤ò³ÊǼ¤¹¤ë¤¿
+ ¤á¤Î¹½Â¤ÂΤǤ¢¤ë¡£¤³¤ì¤é¥Õ¥£¡¼¥Á¥ã¡¼¤ÏÆÃÄê¤Î¥¹¥¯¥ê¥×¥È¤ª¤è¤Ó¸À¸ì¥·
+ ¥¹¥Æ¥à¤Î¤â¤Î¤Ç¤¢¤ë¡£¤³¤Î¾ðÊó¤Ï¡¢¤É¤Î¥Õ¥£¡¼¥Á¥ã¡¼¤ò¥°¥ê¥ÕÎó¤ËŬÍѤ¹
+ ¤ë¤«¡¢¤¢¤ë¤¤¤ÏÆÃÄê¤Î FLT ¤¬ÆÃÄê¤Î¥Õ¥©¥ó¥È¤ËÂФ·¤Æ͸ú¤«¤É¤¦¤«¤Î·èÄê
+ ¤Ë»ÈÍѤµ¤ì¤ë¡£ */
-typedef struct _MFLTOtfSpec MFLTOtfSpec;
-
-struct _MFLTOtfSpec
+typedef struct
{
/***en Unique symbol representing the spec. This is the same as the
- #OTF-SPEC of the FLT. */
+ @ref OTF-SPEC of the FLT. */
/***ja ¤³¤Î»ÅÍͤòɽ¤ï¤¹¥æ¥Ë¡¼¥¯¤Ê¥·¥ó¥Ü¥ë¡£
- FLT ¤Î #OTF-SPEC ¤ÈƱ°ì¤ÎÃͤǤ¢¤ë¡£ */
+ FLT ¤Î @ref OTF-SPEC ¤ÈƱ°ì¤ÎÃͤǤ¢¤ë¡£ */
MSymbol sym;
+ /* @{ */
/***en Tags for script and language system. */
/***ja ¥¹¥¯¥ê¥×¥È¤ª¤è¤Ó¸À¸ì¥·¥¹¥Æ¥à¤Î¥¿¥°¡£ */
unsigned int script, langsys;
-
- /***en Array of GSUB (1st element) and GPOS (2nd element) features.
- Each array is terminated by 0. If an element is 0xFFFFFFFF
- apply the previous features in that order, and apply all the
- other features except those that appear in the following elements.
- It may be NULL if there are no features. */
- /***ja GSUB ¥Õ¥£¡¼¥Á¥ã¡¼¤òÂè1Í×ÁÇ¡¢GPOS ¥Õ¥£¡¼¥Á¥ã¡¼¤òÂè2Í×ÁǤȤ¹¤ëÇÛÎó¡£
- ³ÆÇÛÎó¤ÎËöÈø¤Ï0¤Ç¼¨¤µ¤ì¤ë¡£¤â¤·¤¢¤ëÍ×ÁǤ¬ 0xFFFFFFFF
- ¤Ê¤é¤Ð¡¢°ÊÁ°¤ÎÁ´¥Õ¥£¡¼¥Á¥ã¡¼¤ò¤½¤Î½ç½ø¤ÇŬÍѤ·¡¢¹¹¤Ë°Ê¹ß¤ÎÍ×ÁǤȤ·¤Æ¸½¤ï¤ì¤ë¥Õ¥£¥Á¥ã¡¼°Ê³°¤Î¤¹¤Ù¤Æ¤òŬÍѤ¹¤ë¡£
- ¥Õ¥£¡¼¥Á¥ã¡¼¤¬1¤Ä¤â¤Ê¤¤¾ì¹ç¤Ï NULL ¤Ç¤â¤è¤¤¡£ */
+ /* @} */
+
+ /***en Array of GSUB (1st element) and GPOS (2nd element) feature
+ tag arrays. Each array is terminated by 0. It may be NULL if
+ there is no feature to specify.
+
+ (1) The case of using this information for selecting which
+ features to apply to a glyph string. If the array is NULL,
+ apply no feature. If the first element is 0xFFFFFFFF, apply all
+ available features except for what appear in the second and
+ following elements (if any). Otherwise, apply all listed
+ features.
+
+ (2) The case of using this information for checking if a a font
+ can be drived by a specific FLT. If the array is NULL, the font
+ should not have any features. Otherwize, the font should have
+ all features before 0xFFFFFFFF element (if any) and should not
+ have any features after that element. */
+ /***ja GSUB ¥Õ¥£¡¼¥Á¥ã¡¼¥¿¥°¤ÎÇÛÎó¤òÂè1Í×ÁÇ¡¢GPOS ¥Õ¥£¡¼¥Á¥ã¡¼¥¿¥°¤Î
+ ÇÛÎó¤òÂè2Í×ÁǤȤ¹¤ëÇÛÎó¡£³ÆÇÛÎó¤ÎËöÈø¤Ï0¤Ç¼¨¤µ¤ì¤ë¡£¥Õ¥£¡¼¥Á¥ã¡¼
+ ¤Î»ØÄ꤬1¤Ä¤â¤Ê¤¤¾ì¹ç¤Ï¤³¤ÎÇÛÎó¤ÎÍ×ÁÇ¤Ï NULL ¤Ç¤â¤è¤¤¡£
+
+ (1) ¤³¤Î¾ðÊ󤬥°¥ê¥ÕÎó¤ËŬÍѤ¹¤Ù¤¥Õ¥£¡¼¥Á¥ã¡¼¤ÎÁªÂò¤Ë»È¤ï¤ì¤ë¾ì
+ ¹ç¡£¤â¤·ÇÛÎ󼫿Ȥ¬NULL¤Ê¤é¡¢¤É¤Î¥Õ¥£¡¼¥Á¥ã¡¼¤âŬÍѤ·¤Ê¤¤¡£¤â¤·ºÇ
+ ½é¤ÎÍ×ÁǤ¬ 0xFFFFFFFF ¤Ê¤é¡¢£²ÈÖÌܰʹߤΥե£¡¼¥Á¥ã¡¼¡Ê¤â¤·¤¢¤ì
+ ¤Ð¡Ë¤ò½ü¤¯¤¹¤Ù¤Æ¤ÎŬÍѲÄǽ¤Ê¥Õ¥£¡¼¥Á¥ã¡¼¤òŬÍѤ¹¤ë¡£¤½¤ì°Ê³°¤Î¾ì
+ ¹ç¥ê¥¹¥È¤µ¤ì¤¿¤¹¤Ù¤Æ¤Î¥Õ¥£¡¼¥Á¥ã¡¼¤òŬÍѤ¹¤ë¡£
+
+ (2) ¤³¤Î¾ðÊó¤¬ÆÃÄê¤Î FLT ¤¬ÆÃÄê¤Î¥Õ¥©¥ó¥È¤Ë͸ú¤«¤É¤¦¤«¤Î·èÄê¤Ë»È
+ ¤ï¤ì¤ë¾ì¹ç¡£¤â¤·ÇÛÎ󼫿Ȥ¬NULL¤Ê¤é¡¢¥Õ¥©¥ó¥È¤Ï¥Õ¥£¡¼¥Á¥ã¡¼¤ò°ì¤Ä
+ ¤â»ý¤Ã¤Æ¤¤¤Æ¤Ï¤¤¤±¤Ê¤¤¡£¤â¤·ºÇ½é¤ÎÍ×ÁǤ¬0xFFFFFFFF¤Ê¤é¡¢¥Õ¥©¥ó¥È
+ ¤Ï£²ÈÖÌܤÎÍ×ÁǰʹߤΥե©¥ó¥È¤ò»ý¤Ã¤Æ¤¤¤Æ¤Ï¤¤¤±¤Ê¤¤¡£¤½¤ì°Ê³°¤Î¾ì
+ ¹ç¡¢¥Õ¥©¥ó¥È¤Ï0xFFFFFFFF °ÊÁ°¤Î¤¹¤Ù¤Æ¤Î¥Õ¥£¡¼¥Á¥ã¡¼¤ò»ý¤Á¡¢¤«¤Ä
+ 0xFFFFFFFF °Ê¹ß¤Î¥Õ¥£¡¼¥Á¥ã¡¼¤Ï°ì¤Ä¤â»ý¤Ã¤Æ¤¤¤Æ¤Ï¤¤¤±¤Ê¤¤¡£*/
unsigned int *features[2];
-};
+} MFLTOtfSpec;
+
+/*=*/
/***en
@brief Type of font to be used by the FLT driver.
The type #MFLTFont is the structure that contains information
- about a font used by the FLT driver. */
+ about a font used by the FLT driver. Usually, an application
+ should prepare a bigger structure whose first element is MFLTFont
+ and has more information about the font that is used by callback
+ funcitons, and give that structure to mflt functions by coercing
+ it to MFLTFont. It is assured that callback functions can safely
+ coerce MFLTFont back to the original structure. */
/***ja
@brief FLT ¥É¥é¥¤¥Ð¤¬»È¤¦¥Õ¥©¥ó¥È¤Î·¿.
- ·¿ #MFLTFont ¤Ï¡¢FLT
- ¥É¥é¥¤¥Ð¤¬»È¤¦¥Õ¥©¥ó¥È¤Ë´Ø¤¹¤ë¾ðÊó¤ò³ÊǼ¤¹¤ë¤¿¤á¤Î¹½Â¤ÂΤǤ¢¤ë¡£ */
-
-typedef struct _MFLTFont MFLTFont;
+ ·¿ #MFLTFont ¤Ï¡¢FLT¥É¥é¥¤¥Ð¤¬»È¤¦¥Õ¥©¥ó¥È¤Ë´Ø¤¹¤ë¾ðÊó¤ò³ÊǼ¤¹¤ë¤¿
+ ¤á¤Î¹½Â¤ÂΤǤ¢¤ë¡£Ä̾異¥×¥ê¥±¡¼¥·¥ç¥ó¤ÏºÇ½é¤ÎÍ×ÁǤ¬ MFLTFont ¤Ç¡¢
+ »Ä¤ê¤ÎÍ×ÁǤËcallback´Ø¿ô¤¬ÍøÍѤ¹¤ë¥Õ¥©¥ó¥È¾ðÊó¤ò»ý¤Ã¤¿¡¢¤è¤êÂ礤Ê
+ ¹½Â¤ÂΤòÍÑ°Õ¤·¡¢¤½¤ì¤ò MFLTFont ¤Ë coerce ¤·¤Æ mflt ¤Î³Æ´Ø¿ô¤ËÅϤ¹¡£
+ ³Æcallback´Ø¿ô¤Ï MFLTFont ¤ò¸µ¤Î¹½Â¤ÂÎ¤Ë coerce ¤·Ä¾¤¹¤³¤È¤¬¤Ç¤¤ë
+ ¤³¤È¤¬Êݾڤµ¤ì¤Æ¤¤¤ë¡£ */
-struct _MFLTFont
+typedef struct _MFLTFont
{
/***en Family name of the font. It may be #Mnil if the family name
is not important in finding a Font Layout Table suitable for the
font (for instance, in the case that the font is an OpenType
font). */
- /***ja ¥Õ¥©¥ó¥È¤Î¥Õ¥¡¥ß¥ê¡¼Ì¾¡£¥Õ¥©¥ó¥È¤ËŬ¤·¤¿ FLT
- ¤òõ¤¹ºÝ¤Ë½ÅÍפǤʤ¤¾ì¹ç (¤¿¤È¤¨¤Ð OpenType
- ¥Õ¥©¥ó¥È¤Î¾ì¹ç¤Ê¤É) ¤Ï¡¢#Mnil ¤Ç¤è¤¤¡£*/
+ /***ja ¥Õ¥©¥ó¥È¤Î¥Õ¥¡¥ß¥ê¡¼Ì¾¡£¥Õ¥©¥ó¥È¤ËŬ¤·¤¿ FLT¤òõ¤¹ºÝ¤Ë½ÅÍפǤÊ
+ ¤¤¾ì¹ç (¤¿¤È¤¨¤Ð OpenType¥Õ¥©¥ó¥È¤Î¾ì¹ç¤Ê¤É) ¤Ï¡¢#Mnil ¤Ç¤è¤¤¡£ */
MSymbol family;
- /***en Horizontal and vertical font sizes in pixels per EM. */
- /***ja ¥Õ¥©¥ó¥È¤Î¿åÊ¿¡¦¿âľ¥µ¥¤¥º¤ò pixels per EM ¤Çɽ¸½¤·¤¿¤â¤Î¡£ */
- int x_ppem, y_ppem;
+ /***en Horizontal font sizes in pixels per EM. */
+ /***ja ¥Õ¥©¥ó¥È¤Î¿åÊ¿¥µ¥¤¥º¤ò pixels per EM ¤Çɽ¸½¤·¤¿¤â¤Î¡£ */
+ int x_ppem;
+ /***en Vertical font sizes in pixels per EM. */
+ /***ja ¥Õ¥©¥ó¥È¤Î¿âľ¥µ¥¤¥º¤ò pixels per EM ¤Çɽ¸½¤·¤¿¤â¤Î¡£ */
+ int y_ppem;
/***en Callback function to get glyph IDs for glyphs between FROM
- (inclusive) and TO (exclusive) of GSTRING. If the member <encoded>
- of a glyph is zero, the member <code> of that glyph is a character
+ (inclusive) and TO (exclusive) of GSTRING. If the member \<encoded\>
+ of a glyph is zero, the member \<code\> of that glyph is a character
code. The function must convert it to the glyph ID of FONT. */
- /***ja GSTRING Æâ¤Î FROM ¤«¤é TO ľÁ°¤Þ¤Ç¤Î³Æ¥°¥ê¥Õ¤ËÂбþ¤¹¤ë¥°¥ê¥Õ ID
- ¤ò¼èÆÀ¤¹¤ë¤¿¤á¤Î callback ´Ø¿ô¡£¤â¤·¤¢¤ë¥°¥ê¥Õ¤Î¥á¥ó¥Ð¡¼ <encoded>
- ¤¬¥¼¥í¤Ê¤é¤Ð¡¢¤½¤Î¥°¥ê¥Õ¤Î¥á¥ó¥Ð¡¼ <code> ¤Ïʸ»ú¥³¡¼¥É¤Ç¤¢¤ë¡£
- ¤³¤Î´Ø¿ô¤Ï¤½¤Îʸ»ú¥³¡¼¥É¤ò FONT ¤Î¥°¥ê¥Õ ID
- ¤ËÊÑ´¹¤·¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£ */
- int (*get_glyph_id) (MFLTFont *font, MFLTGlyphString *gstring,
+ /***ja GSTRING Æâ¤Î FROM ¤«¤é TO ľÁ°¤Þ¤Ç¤Î³Æ¥°¥ê¥Õ¤ËÂбþ¤¹¤ë¥°¥ê¥Õ
+ ID¤ò¼èÆÀ¤¹¤ë¤¿¤á¤Î callback ´Ø¿ô¡£¤â¤·¤¢¤ë¥°¥ê¥Õ¤Î¥á¥ó¥Ð¡¼
+ \<encoded\>¤¬¥¼¥í¤Ê¤é¤Ð¡¢¤½¤Î¥°¥ê¥Õ¤Î¥á¥ó¥Ð¡¼ \<code\> ¤Ïʸ»ú¥³¡¼¥É¤Ç
+ ¤¢¤ë¡£¤³¤Î´Ø¿ô¤Ï¤½¤Îʸ»ú¥³¡¼¥É¤ò FONT ¤Î¥°¥ê¥Õ ID¤ËÊÑ´¹¤·¤Ê¤¯¤Æ¤Ï
+ ¤Ê¤é¤Ê¤¤¡£ */
+ int (*get_glyph_id) (struct _MFLTFont *font, MFLTGlyphString *gstring,
int from, int to);
/***en Callback function to get metrics of glyphs between FROM
- (inclusive) and TO (exclusive) of GSTRING. If the member <measured>
- of a glyph is zero, the function must set the members <xadv>, <yadv>,
- <ascent>, <descent>, <lbearing>, and <rbearing> of the glyph. */
- /***ja GSTRING Æâ¤Î FROM ¤«¤é TO
- ľÁ°¤Þ¤Ç¤Î³Æ¥°¥ê¥Õ¤ËÂбþ¤¹¤ë¥á¥È¥ê¥Ã¥¯¤ò¼èÆÀ¤¹¤ë¤¿¤á¤Î callback ´Ø¿ô¡£
- ¤â¤·¤¢¤ë¥°¥ê¥Õ¤Î¥á¥ó¥Ð¡¼ <measured>
- ¤¬¥¼¥í¤Ê¤é¤Ð¡¢¤³¤Î´Ø¿ô¤Ï¤½¤Î¥°¥ê¥Õ¤Î¥á¥ó¥Ð¡¼ <xadv>, <yadv>,
- <ascent>, <descent>, <lbearing>, ¤ª¤è¤Ó <rbearing>
- ¤ò¥»¥Ã¥È¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ */
- int (*get_metrics) (MFLTFont *font, MFLTGlyphString *gstring,
+ (inclusive) and TO (exclusive) of GSTRING. If the member \<measured\>
+ of a glyph is zero, the function must set the members \<xadv\>, \<yadv\>,
+ \<ascent\>, \<descent\>, \<lbearing\>, and \<rbearing\> of the glyph. */
+ /***ja GSTRING Æâ¤Î FROM ¤«¤é TOľÁ°¤Þ¤Ç¤Î³Æ¥°¥ê¥Õ¤ËÂбþ¤¹¤ë¥á¥È¥ê¥Ã
+ ¥¯¤ò¼èÆÀ¤¹¤ë¤¿¤á¤Î callback ´Ø¿ô¡£¤â¤·¤¢¤ë¥°¥ê¥Õ¤Î¥á¥ó¥Ð¡¼
+ \<measured\>¤¬¥¼¥í¤Ê¤é¤Ð¡¢¤³¤Î´Ø¿ô¤Ï¤½¤Î¥°¥ê¥Õ¤Î¥á¥ó¥Ð¡¼ \<xadv\>,
+ \<yadv\>, \<ascent\>, \<descent\>, \<lbearing\>, ¤ª¤è¤Ó \<rbearing\>¤ò¥»¥Ã
+ ¥È¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ */
+ int (*get_metrics) (struct _MFLTFont *font, MFLTGlyphString *gstring,
int from, int to);
/***en Callback function to check if the font has OpenType GSUB/GPOS
features for a specific script/language. The function must
return 1, if the font satisfies SPEC, or 0. It must be
NULL if the font does not have OpenType tables. */
- /***ja ¥Õ¥©¥ó¥È¤¬¤¢¤ëÆÃÄê¤Î¥¹¥¯¥ê¥×¥È/¸À¸ì¤ËÂФ¹¤ë GSUB/GPOS OpenType
- ¥Õ¥£¡¼¥Á¥ã¡¼¤ò»ý¤Ä¤«Èݤ«¤òÄ´¤Ù¤ë callback ´Ø¿ô¡£¤³¤Î´Ø¿ô¤Ï¥Õ¥©¥ó¥È¤¬
- SPEC ¤òËþ¤¿¤¹¤È¤¤Ï 1 ¤ò¡¢¤½¤¦¤Ç¤Ê¤¤¤È¤¤Ï 0
- ¤òÊÖ¤µ¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£¥Õ¥©¥ó¥È¤¬ OpenType ¥Æ¡¼¥Ö¥ë¤ò»ý¤¿¤Ê¤¤¤È¤¤Ï
- NULL ¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ */
- int (*check_otf) (MFLTFont *font, MFLTOtfSpec *spec);
+ /***ja ¥Õ¥©¥ó¥È¤¬¤¢¤ëÆÃÄê¤Î¥¹¥¯¥ê¥×¥È/¸À¸ì¤ËÂФ¹¤ë GSUB/GPOS
+ OpenType¥Õ¥£¡¼¥Á¥ã¡¼¤ò»ý¤Ä¤«Èݤ«¤òÄ´¤Ù¤ë callback ´Ø¿ô¡£¤³¤Î´Ø¿ô
+ ¤Ï¥Õ¥©¥ó¥È¤¬SPEC ¤òËþ¤¿¤¹¤È¤¤Ï 1 ¤ò¡¢¤½¤¦¤Ç¤Ê¤¤¤È¤¤Ï 0¤òÊÖ¤µ¤Ê
+ ¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£¥Õ¥©¥ó¥È¤¬ OpenType ¥Æ¡¼¥Ö¥ë¤ò»ý¤¿¤Ê¤¤¤È¤¤ÏNULL
+ ¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ */
+ int (*check_otf) (struct _MFLTFont *font, MFLTOtfSpec *spec);
/***en Callback function to apply OpenType features in SPEC to glyphs
between FROM (inclusive) and TO (exclusive) of IN. The resulting
glyphs are appended to the tail of OUT. If OUT does not
have a room to store all the resulting glyphs, it must return -2.
It must be NULL if the font does not have OpenType tables. */
- /***ja IN Æâ¤Î FROM ¤«¤é TO ľÁ°¤Þ¤Ç¤Î³Æ¥°¥ê¥Õ¤Ë SPEC
- Æâ¤Î³Æ OpenType ¥Õ¥£¡¼¥Á¥ã¡¼¤òŬÍѤ¹¤ë¤¿¤á¤Î callback ´Ø¿ô¡£
- ŬÍÑ·ë²Ì¤Î¥°¥ê¥ÕÎó¤Ï OUT ¤ÎËöÈø¤ËÄɲ䵤ì¤ë¡£
- OUT ¤¬Ã»¤«²á¤®¤Æ·ë²Ì¤òÄɲä·ÀÚ¤ì¤Ê¤¤¾ì¹ç¤Ï -2 ¤òÊÖ¤µ¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£
- ¥Õ¥©¥ó¥È¤¬ OpenType ¥Æ¡¼¥Ö¥ë¤ò»ý¤¿¤Ê¤¤¾ì¹ç¤Ï NULL
- ¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ /*
- int (*drive_otf) (MFLTFont *font, MFLTOtfSpec *spec,
+ /***ja IN Æâ¤Î FROM ¤«¤é TO ľÁ°¤Þ¤Ç¤Î³Æ¥°¥ê¥Õ¤Ë SPECÆâ¤Î³Æ OpenType
+ ¥Õ¥£¡¼¥Á¥ã¡¼¤òŬÍѤ¹¤ë¤¿¤á¤Î callback ´Ø¿ô¡£Å¬ÍÑ·ë²Ì¤Î¥°¥ê¥ÕÎó¤Ï
+ OUT ¤ÎËöÈø¤ËÄɲ䵤ì¤ë¡£OUT ¤¬Ã»¤«²á¤®¤Æ·ë²Ì¤òÄɲä·ÀÚ¤ì¤Ê¤¤¾ì¹ç
+ ¤Ï -2 ¤òÊÖ¤µ¤Ê¤¯¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£¥Õ¥©¥ó¥È¤¬ OpenType ¥Æ¡¼¥Ö¥ë¤ò»ý¤¿
+ ¤Ê¤¤¾ì¹ç¤Ï NULL¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£ */
+ int (*drive_otf) (struct _MFLTFont *font, MFLTOtfSpec *spec,
MFLTGlyphString *in, int from, int to,
MFLTGlyphString *out, MFLTGlyphAdjustment *adjustment);
to NULL. */
/***ja m17n-lib ¤ÎÆâÉôºî¶ÈÍÑ¡£NULL ¤Ë½éÃͲ½¤µ¤ì¤ë¡£ */
void *internal;
-};
+} MFLTFont;
+
+/*=*/
/***en
@brief Type of FLT (Font Layout Table).
/*=*/
/*** @} */
+extern int mflt_enable_new_feature;
+
+extern MSymbol (*mflt_font_id) (MFLTFont *font);
+
+extern int (*mflt_iterate_otf_feature) (MFLTFont *font,
+ MFLTOtfSpec *spec,
+ int from, int to,
+ unsigned char *table);
+
+extern int (*mflt_try_otf) (struct _MFLTFont *font, MFLTOtfSpec *spec,
+ MFLTGlyphString *gstring, int from, int to);
+
M17N_END_HEADER
#endif /* _M17N_FLT_H_ */
projects / m17n / m17n-lib.git / blobdiff