15 |
|
int (*getcur)(); /* get cursor position */ |
16 |
|
int (*comout)(); /* command line output */ |
17 |
|
int (*comin)(); /* command line input */ |
18 |
+ |
int (*flush)(); /* flush output */ |
19 |
+ |
double pixaspect; /* pixel aspect ratio */ |
20 |
|
int xsiz, ysiz; /* device size */ |
21 |
|
int inpready; /* input ready on device */ |
22 |
|
}; |
24 |
|
extern int stderr_v(); /* error vectors */ |
25 |
|
extern int (*wrnvec)(), (*errvec)(), (*cmdvec)(); |
26 |
|
|
27 |
< |
extern struct driver *comm_init(); /* stream interface */ |
27 |
> |
/* stream interface */ |
28 |
> |
extern struct driver *comm_init(), *slave_init(); |
29 |
|
/* magic numbers for verification */ |
30 |
|
#define COM_SENDM 0x6f37 |
31 |
|
#define COM_RECVM 0x51da |
35 |
|
#define COM_GETCUR 2 |
36 |
|
#define COM_COMOUT 3 |
37 |
|
#define COM_COMIN 4 |
38 |
< |
#define NREQUESTS 5 /* number of valid requests */ |
38 |
> |
#define COM_FLUSH 5 |
39 |
> |
#define NREQUESTS 6 /* number of valid requests */ |
40 |
|
|
41 |
< |
struct device { /* interactive device */ |
41 |
> |
extern struct device { /* interactive device */ |
42 |
|
char *name; /* device name */ |
43 |
|
char *descrip; /* description */ |
44 |
|
struct driver *(*init)(); /* initialize device */ |
45 |
< |
}; |
45 |
> |
} devtable[]; /* supported devices */ |
46 |
|
|
47 |
< |
extern struct device devtable[]; /* supported devices */ |
47 |
> |
extern char dev_default[]; /* default device name */ |
48 |
|
|
49 |
|
#define MB1 ('\n') /* mouse button 1 */ |
50 |
|
#define MB2 ('\r') /* mouse button 2 */ |
51 |
|
#define MB3 (' ') /* mouse button 3 */ |
52 |
|
#define ABORT ('C'-'@') /* abort key */ |
53 |
|
|
50 |
– |
#define MAXRES 4000 /* preposterous display resolution */ |
51 |
– |
|
54 |
|
/* |
55 |
|
* struct driver * |
56 |
|
* dname_init(name, id) |
80 |
|
* int xmin, ymin, xmax, ymax; |
81 |
|
* { |
82 |
|
* Paint a half-open rectangle from (xmin,ymin) to (xmax,ymax) |
83 |
< |
* with the color col. Can call repaint() if necessary. |
83 |
> |
* with the color col. |
84 |
|
* } |
85 |
|
* (*dev->getcur)(xp, yp) |
86 |
|
* int *xp, *yp; |
97 |
|
* string ends with '\n', the message is considered complete, |
98 |
|
* and the next call can erase it. |
99 |
|
* } |
100 |
< |
* (*dev->comin)(in) |
101 |
< |
* char *in; |
100 |
> |
* (*dev->comin)(in, prompt) |
101 |
> |
* char *in, *prompt; |
102 |
|
* { |
103 |
< |
* Read an edited input string from the command line. If |
104 |
< |
* an unrecognized control character is entered, terminate |
105 |
< |
* input and return the string with only that character. |
106 |
< |
* The input string should not contain a newline. |
107 |
< |
* Must work in consort with comout. |
103 |
> |
* Print a prompt then read an edited input command line |
104 |
> |
* assuming the in buffer is big enough. Unless prompt is NULL, |
105 |
> |
* the driver may substitute its own rview command. This is |
106 |
> |
* the most reliable way to repaint areas of the screen. |
107 |
> |
* If the user enters an unrecognized control character, |
108 |
> |
* terminate input and return the string with only that character. |
109 |
> |
* The input string should not contain a newline. The routines in |
110 |
> |
* editline.c may be useful. Comin must work in consort with comout. |
111 |
> |
* } |
112 |
> |
* (*dev->flush)() |
113 |
> |
* { |
114 |
> |
* Flush output to the display. This is guaranteed to be called |
115 |
> |
* frequently enough to keep the display up to date. |
116 |
> |
* This is an ideal time to check for device input. |
117 |
> |
* This function can be NULL for devices that don't need it. |
118 |
|
* } |
119 |
|
* xsiz, ysiz |
120 |
|
* The maximum allowable x and y dimensions. If any |