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Diffstat (limited to 'ocaml-binary-annot/otherlibs/graph/libgraph.h')
| -rw-r--r-- | ocaml-binary-annot/otherlibs/graph/libgraph.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/ocaml-binary-annot/otherlibs/graph/libgraph.h b/ocaml-binary-annot/otherlibs/graph/libgraph.h new file mode 100644 index 0000000000..d2df1c1ae0 --- /dev/null +++ b/ocaml-binary-annot/otherlibs/graph/libgraph.h @@ -0,0 +1,85 @@ +/***********************************************************************/ +/* */ +/* Objective Caml */ +/* */ +/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */ +/* */ +/* Copyright 1996 Institut National de Recherche en Informatique et */ +/* en Automatique. All rights reserved. This file is distributed */ +/* under the terms of the GNU Library General Public License, with */ +/* the special exception on linking described in file ../../LICENSE. */ +/* */ +/***********************************************************************/ + +/* $Id$ */ + +#include <stdio.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <mlvalues.h> + +struct canvas { + int w, h; /* Dimensions of the drawable */ + Drawable win; /* The drawable itself */ + GC gc; /* The associated graphics context */ +}; + +extern Display * caml_gr_display; /* The display connection */ +extern int caml_gr_screen; /* The screen number */ +extern Colormap caml_gr_colormap; /* The color map */ +extern struct canvas caml_gr_window; /* The graphics window */ +extern struct canvas caml_gr_bstore; /* The pixmap used for backing store */ +extern int caml_gr_white, caml_gr_black; /* Black and white pixels for X */ +extern int caml_gr_background; /* Background color for X + (used for CAML color -1) */ +extern Bool caml_gr_display_modeflag; /* Display-mode flag */ +extern Bool caml_gr_remember_modeflag; /* Remember-mode flag */ +extern int caml_gr_x, caml_gr_y; /* Coordinates of the current point */ +extern int caml_gr_color; /* Current *CAML* drawing color (can be -1) */ +extern XFontStruct * caml_gr_font; /* Current font */ +extern long caml_gr_selected_events; /* Events we are interested in */ +extern Bool caml_gr_ignore_sigio; /* Whether to consume events on sigio */ + +extern Bool caml_gr_direct_rgb; +extern int caml_gr_byte_order; +extern int caml_gr_bitmap_unit; +extern int caml_gr_bits_per_pixel; + +#define Wcvt(y) (caml_gr_window.h - 1 - (y)) +#define Bcvt(y) (caml_gr_bstore.h - 1 - (y)) +#define WtoB(y) ((y) + caml_gr_bstore.h - caml_gr_window.h) +#define BtoW(y) ((y) + caml_gr_window.h - caml_gr_bstore.h) +#define min(a,b) ((a) < (b) ? (a) : (b)) +#define max(a,b) ((a) > (b) ? (a) : (b)) + +#define DEFAULT_SCREEN_WIDTH 600 +#define DEFAULT_SCREEN_HEIGHT 450 +#define BORDER_WIDTH 2 +#define DEFAULT_WINDOW_NAME "Caml graphics" +#define DEFAULT_SELECTED_EVENTS \ + (ExposureMask | KeyPressMask | StructureNotifyMask) +#define DEFAULT_FONT "fixed" +#define SIZE_QUEUE 256 + +/* To handle events asynchronously */ +#ifdef HAS_ASYNC_IO +#define USE_ASYNC_IO +#define EVENT_SIGNAL SIGIO +#else +#ifdef HAS_SETITIMER +#define USE_INTERVAL_TIMER +#define EVENT_SIGNAL SIGALRM +#else +#define USE_ALARM +#define EVENT_SIGNAL SIGALRM +#endif +#endif + +extern void caml_gr_fail(char *fmt, char *arg); +extern void caml_gr_check_open(void); +extern unsigned long caml_gr_pixel_rgb(int rgb); +extern int caml_gr_rgb_pixel(long unsigned int pixel); +extern void caml_gr_handle_event(XEvent *e); +extern void caml_gr_init_color_cache(void); +extern void caml_gr_init_direct_rgb_to_pixel(void); +extern value caml_gr_id_of_window( Window w ); |