ref: 88377fc82f0f0feb34798813a7f5fccb8c1941b6
dir: /acme/bin/source/acd/acme.c/
#include "acd.h"
static int
iscmd(char *s, char *cmd)
{
int len;
len = strlen(cmd);
return strncmp(s, cmd, len)==0 && (s[len]=='\0' || s[len]==' ' || s[len]=='\t' || s[len]=='\n');
}
static char*
skip(char *s, char *cmd)
{
s += strlen(cmd);
while(*s==' ' || *s=='\t' || *s=='\n')
s++;
return s;
}
//#define PLAYSTRING "/^[0-9:]+>"
//#define PLAYSTRINGSPACE "/^[0-9:]+> ?"
//#define INITSTRING "0:00> "
#define INITSTRING "> "
#define PLAYSTRING "/^>"
#define PLAYSTRINGSPACE "/^> ?"
/*
* find the playing string, leave in addr
* if q0, q1 are non-nil, set them to the addr of the string.
*/
int
findplay(Window *w, char *s, ulong *q0, ulong *q1)
{
char xbuf[25];
if(w->data < 0)
w->data = winopenfile(w, "data");
if(!winsetaddr(w, "#0", 1) || !winsetaddr(w, s, 1))
return 0;
seek(w->addr, 0, 0);
if(read(w->addr, xbuf, 24) != 24)
return 0;
xbuf[24] = 0;
if(q0)
*q0 = atoi(xbuf);
if(q1)
*q1 = atoi(xbuf+12);
return 1;
}
/*
* find the playing string and replace the time
*/
int
setplaytime(Window *w, char *new)
{
char buf[40];
ulong q0, q1;
return 1;
if(!findplay(w, PLAYSTRING, &q0, &q1))
return 0;
q1--; /* > */
sprint(buf, "#%lud,#%lud", q0, q1);
DPRINT(2, "setaddr %s\n", buf);
if(!winsetaddr(w, buf, 1))
return 0;
if(write(w->data, new, strlen(new)) != strlen(new))
return 0;
return 1;
}
/*
* find the playing string, and remove it.
* return the string at the beginning of hte next line in buf
* (presumably a track number).
*/
static int
unmarkplay(Window *w, char *buf, int n, ulong *q0, ulong *q1, ulong *qbegin)
{
char xbuf[24];
if(!findplay(w, PLAYSTRINGSPACE, q0, q1))
return 0;
if(write(w->data, "", 0) < 0 || !winsetaddr(w, "+1+#0", 1))
return 0;
if(qbegin) {
seek(w->addr, 0, 0);
if(read(w->addr, xbuf, 24) != 24)
return 0;
*qbegin = atoi(xbuf);
}
if(buf) {
if((n = read(w->data, buf, n-1)) < 0)
return 0;
buf[n] = '\0';
}
return 1;
}
int
markplay(Window *w, ulong q0)
{
char buf[20];
if(w->data < 0)
w->data = winopenfile(w, "data");
sprint(buf, "#%lud", q0);
DPRINT(2, "addr %s\n", buf);
if(!winsetaddr(w, buf, 1) || !winsetaddr(w, "-0", 1))
return 0;
if(write(w->data, INITSTRING, strlen(INITSTRING)) != strlen(INITSTRING))
return 0;
return 1;
}
/* return 1 if handled, 0 otherwise */
int
cdcommand(Window *w, Drive *d, char *s)
{
s = skip(s, "");
if(iscmd(s, "Del")){
if(windel(w, 0))
threadexitsall(nil);
return 1;
}
if(iscmd(s, "Stop")){
unmarkplay(w, nil, 0, nil, nil, nil);
stop(d);
return 1;
}
if(iscmd(s, "Eject")){
unmarkplay(w, nil, 0, nil, nil, nil);
eject(d);
return 1;
}
if(iscmd(s, "Ingest")){
unmarkplay(w, nil, 0, nil, nil, nil);
ingest(d);
return 1;
}
if(iscmd(s, "Pause")){
pause(d);
return 1;
}
if(iscmd(s, "Resume")){
resume(d);
return 1;
}
return 0;
}
void
drawtoc(Window *w, Drive *d, Toc *t)
{
int i, playing;
if(w->data < 0)
w->data = winopenfile(w, "data");
if(!winsetaddr(w, ",", 1))
return;
fprint(w->data, "Title\n\n");
playing = -1;
if(d->status.state == Splaying || d->status.state == Spaused)
playing = d->status.track-t->track0;
for(i=0; i<t->ntrack; i++)
fprint(w->data, "%s%d/ Track %d\n", i==playing ? "> " : "", i+1, i+1);
fprint(w->data, "");
}
void
redrawtoc(Window *w, Toc *t)
{
int i;
char old[50];
if(w->data < 0)
w->data = winopenfile(w, "data");
if(t->title) {
if(winsetaddr(w, "/Title", 1))
write(w->data, t->title, strlen(t->title));
}
for(i=0; i<t->ntrack; i++) {
if(t->track[i].title) {
sprint(old, "/Track %d", i+1);
if(winsetaddr(w, old, 1))
write(w->data, t->track[i].title, strlen(t->track[i].title));
}
}
}
void
advancetrack(Drive *d, Window *w)
{
int n;
ulong q0, q1, qnext;
char buf[20];
q0 = q1 = 0;
if(!unmarkplay(w, buf, sizeof(buf), &q0, &q1, &qnext)) {
DPRINT(2, "unmark: %r\n");
return;
}
DPRINT(2, "buf: %s\n", buf);
if(strncmp(buf, "repeat", 6) == 0) {
if(!winsetaddr(w, "#0", 1) || !findplay(w, "/^[0-9]+\\/", &qnext, nil)) {
DPRINT(2, "set/find: %r\n");
return;
}
if(w->data < 0)
w->data = winopenfile(w, "data");
if((n = read(w->data, buf, sizeof(buf)-1)) <= 0) {
DPRINT(2, "read %d: %r\n", n);
return;
}
buf[n] = 0;
DPRINT(2, "buf: %s\n", buf);
}
if((n = atoi(buf)) == 0)
return;
if(!markplay(w, qnext))
DPRINT(2, "err: %r");
playtrack(d, n-1, n-1);
}
void
acmeevent(Drive *d, Window *w, Event *e)
{
Event *ea, *e2, *eq;
char *s, *t, *buf;
int n, na;
ulong q0, q1;
switch(e->c1){ /* origin of action */
default:
Unknown:
fprint(2, "unknown message %c%c\n", e->c1, e->c2);
break;
case 'E': /* write to body or tag; can't affect us */
break;
case 'F': /* generated by our actions; ignore */
break;
case 'K': /* type away; we don't care */
break;
case 'M': /* mouse event */
switch(e->c2){ /* type of action */
case 'x': /* mouse: button 2 in tag */
case 'X': /* mouse: button 2 in body */
ea = nil;
// e2 = nil;
s = e->b;
if(e->flag & 2){ /* null string with non-null expansion */
e2 = recvp(w->cevent);
if(e->nb==0)
s = e2->b;
}
if(e->flag & 8){ /* chorded argument */
ea = recvp(w->cevent); /* argument */
na = ea->nb;
recvp(w->cevent); /* ignore origin */
}else
na = 0;
/* append chorded arguments */
if(na){
t = emalloc(strlen(s)+1+na+1);
sprint(t, "%s %s", s, ea->b);
s = t;
}
/* if it's a known command, do it */
/* if it's a long message, it can't be for us anyway */
DPRINT(2, "exec: %s\n", s);
if(!cdcommand(w, d, s)) /* send it back */
winwriteevent(w, e);
if(na)
free(s);
break;
case 'l': /* mouse: button 3 in tag */
case 'L': /* mouse: button 3 in body */
// buf = nil;
eq = e;
if(e->flag & 2){
e2 = recvp(w->cevent);
eq = e2;
}
s = eq->b;
if(eq->q1>eq->q0 && eq->nb==0){
buf = emalloc((eq->q1-eq->q0)*UTFmax+1);
winread(w, eq->q0, eq->q1, buf);
s = buf;
}
DPRINT(2, "load %s\n", s);
if((n = atoi(s)) != 0) {
DPRINT(2, "mark %d\n", n);
q0 = q1 = 0;
unmarkplay(w, nil, 0, &q0, &q1, nil);
/* adjust eq->q* for deletion */
if(eq->q0 > q1) {
eq->q0 -= (q1-q0);
eq->q1 -= (q1-q0);
}
if(!markplay(w, eq->q0))
DPRINT(2, "err: %r\n");
playtrack(d, n-1, n-1);
} else
winwriteevent(w, e);
break;
case 'i': /* mouse: text inserted in tag */
case 'I': /* mouse: text inserted in body */
case 'd': /* mouse: text deleted from tag */
case 'D': /* mouse: text deleted from body */
break;
default:
goto Unknown;
}
}
}