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	libgint.h - sam - An updated version of the sam text editor.
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	libgint.h (3070B)
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	1 /* Copyright (c) 1998 Lucent Technologies - All rights reserved. */
	2 /* internal libg implementation file - include after libg */
	3
	4 /*
	5 * include defs of standard library routines, if possible,
	6 * and string routines
	7 */
	8 #ifdef _POSIX_SOURCE
	9 #include <stdlib.h>
	10 #include <string.h>
	11 #endif /* _POSIX_SOURCE */
	12
	13 /*
	14 * use defines to rename X11 types Cursor, Font, Event
	15 */
	16
	17 #define Font xFont
	18 #define Event xEvent
	19
	20 #if defined(v10) \|\| defined(HPUX)
	21 typedef char* caddr_t;
	22 #endif
	23
	24 #include <X11/Xlib.h>
	25 #include <X11/Xatom.h>
	26 #include <X11/Xutil.h>
	27 #include <X11/XKBlib.h>
	28 #include <X11/Xft/Xft.h>
	29
	30 #undef Font
	31 #undef Event
	32
	33 /* keyboard info */
	34 extern XkbDescPtr xkb;
	35
	36 /* binding and chord management */
	37 void freechords(void);
	38 void freebindings(void);
	39
	40 /* Cursor initialization */
	41 void initcursors(void);
	42
	43 /* Return a GCs for solid filling/strings/etc., segments/points, and til…
	44 extern GC _getfillgc(Fcode, Bitmap*, uint64_t);
	45 extern GC _getcopygc(Fcode, Bitmap, Bitmap, int*);
	46 extern GC _getfillgc2(Fcode, Bitmap*, uint64_t, uint64_t, uint64_t);
	47 extern GC _getcopygc2(Fcode, Bitmap, Bitmap, int*, uint64_t, uint64_…
	48 extern GC _getgc(Bitmap, uint64_t, XGCValues );
	49
	50 /* convert between different bitmap depths */
	51 extern void _ldconvert(char , int, char , int, int, int);
	52
	53 /* balloc without zero init (which uses a gc!) */
	54 extern Bitmap *_balloc(Rectangle, int);
	55
	56 /* X Display for this application's connection */
	57 extern Display *_dpy;
	58
	59 /* screen depth foreground and background for this application */
	60 extern uint64_t _fgpixel, _bgpixel;
	61 extern XColor _fgcolor, _bgcolor;
	62
	63 /* indexed by log depth (0 <= ld <= 5), to give depth and planemask */
	64 extern int _ld2d[];
	65 extern uint64_t _ld2dmask[];
	66
	67 /* libg.h defines:
	68 * extern Bitmap screen; -- Bitmap for application Window after xbin…
	69 * extern Font *font; -- Font for application default font after …
	70 */
	71
	72 /*
	73 * Conventions:
	74 * The .id field of a Bitmap is an X Pixmap unless the Bitmap is scree…
	75 * in which case it is a Window.
	76 * The .id field of a Font is set to the X xFont.
	77 *
	78 * Coordinate conventions: libg bitmaps can have non (0,0) origins,
	79 * but not X Pixmaps, so we have to subtract the min point of a Bitmap
	80 * from coords in the Bitmap before using the point in the correspondi…
	81 * The screen Bitmap, however, contains the rectangle in X coords of t…
	82 * widget in which the application is started, relative to the window.
	83 * The origin may or may not be (0,0), but in any case, coordinates sh…
	84 * NOT be translated before using in X calls on the Window.
	85 */
	86
	87 /* values for bitmap flag field (see _getcopygc if change first two vals…
	88 enum {
	89 DP1= 0x1, /* depth == 1 (ldepth == 0) */
	90 BL1= 0x2, /* black == 1 model */
	91 SCR= 0x4, /* on screen */
	92 ZORG= 0x8, /* r.min == Pt(0,0) */
	93 SHIFT= 0x20, /* !SCR & !ZORG */
	94 CLIP= 0x40 /* r != clipr */
	95 };
	96
	97 /* values for return bltfunc arg of _getcopygc */
	98 enum {
	99 UseCopyArea,
	100 UseCopyPlane,
	101 UseFillRectangle
	102 };