/* font.h -- Interface definition for font handling.
- Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
- Copyright (C) 2006, 2007, 2008, 2009
+ Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
National Institute of Advanced Industrial Science and Technology (AIST)
Registration Number H13PRO009
enum font_property_index
{
/* FONT-TYPE is a symbol indicating a font backend; currently `x',
- `xft', `ftx' are available on X, gdi on Windows, and ns under
- Cocoa / GNUstep. */
+ `xft', `ftx' are available on X, `uniscribe' and `gdi' on
+ Windows, and `ns' under Cocoa / GNUstep. */
FONT_TYPE_INDEX,
/* FONT-FOUNDRY is a foundry name (symbol). */
/* In a font-spec, the value is an alist of extra information of a
font such as name, OpenType features, and language coverage.
In addition, in a font-entity, the value may contain a pair
- (font-entity . INFO) where INFO is extra infomation to identify
+ (font-entity . INFO) where INFO is extra information to identify
a font (font-driver dependent). */
FONT_EXTRA_INDEX, /* alist alist */
/* XLFD name of the font (string). */
FONT_NAME_INDEX = FONT_ENTITY_MAX,
-
+
/* Full name of the font (string). It is the name extracted from
the opend font, and may be different from the above. It may be
nil if the opened font doesn't give a name. */
extern Lisp_Object Qascii_0;
extern Lisp_Object Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip;
+/* Special ADSTYLE properties to avoid fonts used for Latin characters. */
+extern Lisp_Object Qja, Qko;
+
/* Structure for a font-spec. */
struct font_spec
{
- EMACS_UINT size;
- struct Lisp_Vector *next;
+ struct vectorlike_header header;
Lisp_Object props[FONT_SPEC_MAX];
};
struct font_entity
{
- EMACS_UINT size;
- struct Lisp_Vector *next;
+ struct vectorlike_header header;
Lisp_Object props[FONT_ENTITY_MAX];
};
struct font
{
- EMACS_UINT size;
- struct Lisp_Vector *next;
+ struct vectorlike_header header;
/* All Lisp_Object components must come first.
That ensures they are all aligned normally. */
FONT-ENTITY and it must be opened to check it, return -1. */
int (*has_char) P_ ((Lisp_Object font, int c));
- /* Return a glyph code of FONT for characer C (Unicode code point).
+ /* Return a glyph code of FONT for character C (Unicode code point).
If FONT doesn't have such a glyph, return FONT_INVALID_CODE. */
unsigned (*encode_char) P_ ((struct font *font, int c));
makes some data specific to F and stores it in F by calling
font_put_frame_data (). */
int (*start_for_frame) P_ ((FRAME_PTR f));
-
+
/* Optional.
End using the driver for frame F. Usually this function free
some data stored for F. */
the (N-1)th element of VARIATIONS. */
int (*get_variation_glyphs) P_ ((struct font *font,
int c, unsigned variations[256]));
+
+ void (*filter_properties) P_ ((Lisp_Object font, Lisp_Object properties));
+
+ /* Optional.
+
+ Return non-zero if FONT_OBJECT can be used as a (cached) font
+ for ENTITY on frame F. */
+ int (*cached_font_ok) P_ ((struct frame *f,
+ Lisp_Object font_object,
+ Lisp_Object entity));
};
extern Lisp_Object font_style_symbolic P_ ((Lisp_Object font,
enum font_property_index prop,
int for_face));
-
+
extern int font_match_p P_ ((Lisp_Object spec, Lisp_Object font));
extern Lisp_Object font_list_entities P_ ((Lisp_Object frame,
Lisp_Object spec));
extern void font_prepare_for_face P_ ((FRAME_PTR f, struct face *face));
extern void font_done_for_face P_ ((FRAME_PTR f, struct face *face));
+extern Lisp_Object font_open_by_spec P_ ((FRAME_PTR f, Lisp_Object spec));
extern Lisp_Object font_open_by_name P_ ((FRAME_PTR f, char *name));
extern void font_close_object (FRAME_PTR f, Lisp_Object font_object);
extern void *font_get_frame_data P_ ((FRAME_PTR f,
struct font_driver *driver));
+extern void font_filter_properties (Lisp_Object font,
+ Lisp_Object alist,
+ const char *boolean_properties[],
+ const char *non_boolean_properties[]);
+
#ifdef HAVE_FREETYPE
extern struct font_driver ftfont_driver;
#endif /* HAVE_FREETYPE */
#define FONT_DEBUG
#endif
+extern Lisp_Object Vfont_log;
extern void font_add_log P_ ((char *, Lisp_Object, Lisp_Object));
extern void font_deferred_log P_ ((char *, Lisp_Object, Lisp_Object));
+#define FONT_ADD_LOG(ACTION, ARG, RESULT) \
+ do { \
+ if (! EQ (Vfont_log, Qt)) \
+ font_add_log ((ACTION), (ARG), (RESULT)); \
+ } while (0)
+
+#define FONT_DEFERRED_LOG(ACTION, ARG, RESULT) \
+ do { \
+ if (! EQ (Vfont_log, Qt)) \
+ font_deferred_log ((ACTION), (ARG), (RESULT)); \
+ } while (0)
+
#ifdef FONT_DEBUG
#define font_assert(X) do {if (!(X)) abort ();} while (0)
#else /* not FONT_DEBUG */