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/*
* uw window data definition
*
* Copyright 1986 by John D. Bruner. All rights reserved. Permission to
* copy this program is given provided that the copy is not sold and that
* this copyright notice is included.
*/
#ifndef UW_WIN
#define UW_WIN
#include "uw_opt.h"
/*
* A "point" is a pair of 16-bit integers. This may specify the horizontal
* and vertical position or size of a window.
*/
typedef short npixel_t; /* number of pixels */
struct point {
npixel_t v,h;
};
/*
* The type of a window determines how it responds to I/O and which
* window options it supports. I'd like to declare these with an "enum",
* but the stupid PCC screams if I use enums as array indices, so they
* are defined via #define's instead.
*/
typedef unsigned int wtype_t; /* window type: */
#define WT_ADM31 0 /* ADM-31 terminal emulation */
#define WT_VT52 1 /* VT52 terminal emulation */
#define WT_ANSI 2 /* ANSI terminal emulation */
#define WT_TEK4010 3 /* Tek4010 terminal emulation */
#define WT_FTP 4 /* file transfer */
#define WT_PRINT 5 /* output to printer */
#define WT_PLOT 6 /* plot window */
#define WT_MAXTYPE 6 /* maximum window type */
extern wtype_t defwtype; /* default window type */
/*
* There are two basic classes of windows -- those which are processed
* directly by the server and those which are processed by outside
* programs. Directly-handled windows are always terminal emulations.
* Externally-handled windows may be any window type.
*/
typedef enum { /* window class: */
WC_INTERNAL, /* processed directly */
WC_EXTERNAL, /* processed externally */
} wclass_t;
struct window {
int w_alloc; /* window allocated if nonzero */
long w_id; /* window unique ID */
wtype_t w_type; /* window emulation type */
wclass_t w_class; /* window class */
fildes_t w_datafd; /* data file descriptor */
union {
struct winint {
char wi_tty[32]; /* terminal name */
} wu_int;
struct winext {
fildes_t we_ctlfd; /* control file descriptor */
} wu_ext;
} w_un;
struct woptdefn w_optdefn; /* window option definitions */
int w_visible; /* nonzero if window is visible */
struct point w_position; /* position of window on screen */
struct point w_size; /* size of window in pixels */
char w_title[256]; /* window title */
char *w_private; /* storage private to emulation type */
};
#define w_tty w_un.wu_int.wi_tty
#define w_ctlfd w_un.wu_ext.we_ctlfd
typedef int nwin_t; /* window index data type */
/*
* Some operations upon windows depend upon the window type. For each
* emulation type there is a "emulation" structure which specifies
* emulation-specific data.
*/
struct emulation {
struct woptdefn we_optdefn; /* window option definitions */
int (*we_start)(); /* emulation setup code */
void (*we_stop)(); /* emulation shutdown code */
void (*we_setext)(); /* make changes req'd for extern win */
};
extern struct window *win_neww(); /* create new window */
extern struct window *win_search(); /* convert window ID to window ptr */
/*
* The following macros convert between a window number and a pointer to
* the corresponding window structure (and vice versa).
*
* NWINDOW *must* be >= P1_NWINDOW and >= P2_NWINDOW (in "uw_pcl.h").
*/
#define NWINDOW 7 /* maximum number of windows */
#define WIN_NUM(wptr) ((wptr)-window+1)
#define WIN_PTR(wnum) (window+(wnum)-1)
extern struct window window[]; /* window data structures */
#endif
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.