scx/c/libs/xft.h

#include <X11/Xft/Xft.h>
#include <scheme48.h>
#include <xlib.h>
#include <xrender.h>

#ifndef XFT_VERSION
#define XFT_VERSION 1
#endif

#define SCX_XFT_FAMILY	    0	/* String */
#define SCX_XFT_STYLE	    1	/* String */
#define SCX_XFT_SLANT	    2	/* Int */
#define SCX_XFT_WEIGHT	    3	/* Int */
#define SCX_XFT_SIZE	    4	/* Double */
#define SCX_XFT_PIXEL_SIZE  5	/* Double */
#define SCX_XFT_ENCODING    6	/* String */
#define SCX_XFT_SPACING	    7	/* Int */
#define SCX_XFT_FOUNDRY	    8	/* String */
#define SCX_XFT_CORE	    9	/* Bool */
#define SCX_XFT_ANTIALIAS   10	/* Bool */
#define SCX_XFT_XLFD	    11	/* String */
#define SCX_XFT_FILE	    12	/* String */
#define SCX_XFT_INDEX	    13	/* Int */
#define SCX_XFT_RASTERIZER  14  /* String */
#define SCX_XFT_OUTLINE	    15	/* Bool */
#define SCX_XFT_SCALABLE    16	/* Bool */
#define SCX_XFT_RGBA	    17	/* Int */
#define SCX_XFT_SCALE	    18	/* double */
#define SCX_XFT_RENDER	    19	/* Bool */
#define SCX_XFT_MINSPACE    20	/* Bool use minimum line spacing */
#define SCX_XFT_DPI	    21 	/* double */
#define SCX_XFT_CHAR_WIDTH  22	/* Int */
#define SCX_XFT_CHAR_HEIGHT 23  /* Int */

enum xft_pattern_get_return_type {
  SCX_XFT_INVALID,
  SCX_XFT_UNIMPLEMENTED,
  SCX_XFT_STRING,
  SCX_XFT_DOUBLE,
  SCX_XFT_INT,
  SCX_XFT_BOOL
};

struct xft_pattern_property {
  int scx_id;
  char *name;
  enum xft_pattern_get_return_type type;
};

static struct xft_pattern_property xft_pattern_property_tbl [] = {
  {SCX_XFT_FAMILY,		XFT_FAMILY,		SCX_XFT_STRING},
  {SCX_XFT_STYLE,		XFT_STYLE,		SCX_XFT_STRING},
  {SCX_XFT_SLANT,		XFT_SLANT,		SCX_XFT_INT},
  {SCX_XFT_WEIGHT,		XFT_WEIGHT,		SCX_XFT_INT},
  {SCX_XFT_SIZE,		XFT_SIZE,		SCX_XFT_DOUBLE},
  {SCX_XFT_PIXEL_SIZE,		XFT_PIXEL_SIZE,		SCX_XFT_DOUBLE},
#if XFT_VERSION < 2
  {SCX_XFT_ENCODING,		XFT_ENCODING,		SCX_XFT_STRING},
#else
  {SCX_XFT_ENCODING,		XFT_ENCODING,		SCX_XFT_UNIMPLEMENTED},
#endif
  {SCX_XFT_SPACING,		XFT_SPACING,		SCX_XFT_INT},
  {SCX_XFT_FOUNDRY,		XFT_FOUNDRY,		SCX_XFT_STRING},
#if XFT_VERSION < 2
  {SCX_XFT_CORE,		XFT_CORE,		SCX_XFT_BOOL},
#else
  {SCX_XFT_CORE,		XFT_CORE,		SCX_XFT_UNIMPLEMENTED},
#endif
  {SCX_XFT_ANTIALIAS,		XFT_ANTIALIAS,		SCX_XFT_BOOL},
  {SCX_XFT_XLFD,		XFT_XLFD,		SCX_XFT_STRING},
  {SCX_XFT_FILE,		XFT_FILE,		SCX_XFT_STRING},
  {SCX_XFT_INDEX,		XFT_INDEX,		SCX_XFT_INT},
  {SCX_XFT_RASTERIZER,		XFT_RASTERIZER,		SCX_XFT_STRING},
  {SCX_XFT_OUTLINE,		XFT_OUTLINE,		SCX_XFT_STRING},
  {SCX_XFT_SCALABLE,		XFT_SCALABLE,		SCX_XFT_BOOL},
  {SCX_XFT_RGBA,		XFT_RGBA,		SCX_XFT_INT},
  {SCX_XFT_SCALE,		XFT_SCALE,		SCX_XFT_DOUBLE},
  {SCX_XFT_RENDER,		XFT_RENDER,		SCX_XFT_BOOL},
  {SCX_XFT_MINSPACE,		XFT_MINSPACE,		SCX_XFT_BOOL},
  {SCX_XFT_DPI,			XFT_DPI,		SCX_XFT_DOUBLE},
#if XFT_VERSION < 2
  {SCX_XFT_CHAR_WIDTH,		XFT_CHAR_WIDTH,		SCX_XFT_INT},
  {SCX_XFT_CHAR_HEIGHT,		XFT_CHAR_HEIGHT,	SCX_XFT_INT},
#else
  {SCX_XFT_CHAR_WIDTH,		XFT_CHAR_WIDTH,		SCX_XFT_UNIMPLEMENTED},
  {SCX_XFT_CHAR_HEIGHT,		XFT_CHAR_HEIGHT,	SCX_XFT_UNIMPLEMENTED},
#endif
  {NULL,			NULL,			SCX_XFT_INVALID}
};

/* scheme record types */
static s48_value scx_xftpattern_record_type		= S48_UNSPECIFIC;
static s48_value scx_xftfont_record_type		= S48_UNSPECIFIC;
static s48_value scx_xftdraw_record_type		= S48_UNSPECIFIC;
static s48_value scx_xftcolor_record_type		= S48_UNSPECIFIC;
static s48_value scx_xftobjectset_record_type		= S48_UNSPECIFIC;
static s48_value scx_xftfontset_record_type		= S48_UNSPECIFIC;

#define XFT_GC_PROTECT_IMPORT_BINDING(CN, SN)		\
	S48_GC_PROTECT_GLOBAL(CN);			\
	CN = s48_get_imported_binding("SN");

/* C values exported to scheme */
static s48_value scx_XftResultMatch		= S48_UNSPECIFIC;
static s48_value scx_XftResultNoMatch		= S48_UNSPECIFIC;
static s48_value scx_XftResultTypeMismatch	= S48_UNSPECIFIC;
static s48_value scx_XftResultNoId		= S48_UNSPECIFIC;

#define XFT_REC_ACCESSOR_MAKER(FN, TN, RN) \
	s48_value FN(TN *p)				\
	{						\
	  s48_value xftrec = S48_UNSPECIFIC;		\
	  S48_DECLARE_GC_PROTECT(1);			\
							\
	  S48_GC_PROTECT_1(xftrec);			\
	  xftrec = s48_make_record(RN);			\
	  S48_RECORD_SET(xftrec, 0, s48_enter_integer((long) p)); \
	  S48_GC_UNPROTECT();				\
	  return xftrec;				\
	}

#define GC_PROTECT_ENTER_INT(schemeval, i) \
	S48_GC_PROTECT_GLOBAL(schemeval); \
	schemeval = s48_enter_integer(i);

/* function prototypes */
s48_value scx_enter_xftpattern(XftPattern *p);
s48_value scx_extract_xftpattern(s48_value s);

s48_value scx_enter_xftfont(XftFont *f);
s48_value scx_extract_xftfont(s48_value s);

s48_value scx_enter_xftdraw(XftDraw *d);
s48_value scx_extract_xftdraw(s48_value s);

s48_value scx_enter_xftcolor(XftColor *c);
s48_value scx_extract_xftcolor(s48_value s);

s48_value scx_enter_xftobjectset(XftObjectSet *os);
s48_value scx_extract_xftobjectset(s48_value s);

s48_value scx_enter_xftfontset(XftFontSet *fs);
s48_value scx_extract_xftfontset(s48_value s);

struct xft_pattern_property* lookup_pattern_property_by_id(int id);