ref: 82b046f36f8084a22bbb5d71edd0edd9179561eb
dir: /appl/wm/calendar.b/
implement Calendar;
#
# Copyright © 2000 Vita Nuova Limited. All rights reserved.
#
include "sys.m";
sys: Sys;
include "draw.m";
draw: Draw;
Font, Point, Rect: import draw;
include "daytime.m";
daytime: Daytime;
Tm: import Daytime;
include "tk.m";
tk: Tk;
include "tkclient.m";
tkclient: Tkclient;
include "dialog.m";
dialog: Dialog;
include "readdir.m";
include "translate.m";
translate: Translate;
Dict: import translate;
include "arg.m";
arg: Arg;
include "sh.m";
Calendar: module {
init: fn(ctxt: ref Draw->Context, argv: list of string);
};
Cal: adt {
w: string;
dx, dy: int;
onepos: int;
top: ref Tk->Toplevel;
sched: ref Schedule;
date: int;
marked: array of int;
make: fn(top: ref Tk->Toplevel, sched: ref Schedule, w: string): (ref Cal, chan of string);
show: fn(cal: self ref Cal, date: int);
mark: fn(cal: self ref Cal, ent: Entry);
};
Entry: adt {
date: int; # YYYYMMDD
mark: int;
};
Sentry: adt {
ent: Entry;
file: int;
};
Schedule: adt {
dir: string;
entries: array of Sentry;
new: fn(dir: string): (ref Schedule, string);
getentry: fn(sched: self ref Schedule, date: int): (int, Entry);
readentry: fn(sched: self ref Schedule, date: int): (Entry, string);
setentry: fn(sched: self ref Schedule, ent: Entry, data: string): (int, string);
};
Markset: adt {
new: fn(top: ref Tk->Toplevel, cal: ref Cal, w: string): (ref Markset, chan of string);
set: fn(m: self ref Markset, kind: int);
get: fn(m: self ref Markset): int;
ctl: fn(m: self ref Markset, c: string);
top: ref Tk->Toplevel;
cal: ref Cal;
w: string;
curr: int;
};
DBFSPATH: con "/dis/rawdbfs.dis";
SCHEDDIR: con "/mnt/schedule";
stderr: ref Sys->FD;
dict: ref Dict;
font := "/fonts/lucidasans/unicode.7.font";
days, months: array of string;
packcmds := array[] of {
"pack .ctf.show .ctf.set .ctf.date -side right",
"pack .ctf -side top -fill x",
"pack .cf.head.fwd .cf.head.bwd .cf.head.date -side right",
"pack .cf.head -side top -fill x",
"pack .cf.cal -side top",
"pack .cf -side top",
"pack .schedf.head.fwd .schedf.head.bwd .schedf.head.date .schedf.head.markset"
+ " .schedf.head.save .schedf.head.del -side right",
"pack .schedf.head -side top -fill x",
"pack .schedf.tf.scroll -side left -fill y",
"pack .schedf.tf.t -side top -fill both -expand 1",
"pack .schedf.tf -side top -fill both -expand 1",
"pack .schedf -side top -fill both -expand 1",
};
Savebut: con ".schedf.head.save";
Delbut: con ".schedf.head.del";
usage()
{
sys->fprint(stderr, "usage: calendar [-f font] [/mnt/schedule | schedfile]\n");
raise "fail:usage";
}
init(ctxt: ref Draw->Context, argv: list of string)
{
loadmods();
if (ctxt == nil) {
sys->fprint(sys->fildes(2), "calendar: no window context\n");
raise "fail:bad context";
}
days = Xa(array[] of {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"});
months = Xa(array[] of {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"});
arg->init(argv);
while ((opt := arg->opt()) != 0) {
case opt {
'f' =>
if ((font = arg->arg()) == nil)
usage();
* =>
usage();
}
}
argv = arg->argv();
scheddir := SCHEDDIR;
if (argv != nil)
scheddir = hd argv;
(top, wmctl) := tkclient->toplevel(ctxt, "", X("Calendar"), Tkclient->Appl);
if (top == nil) {
sys->fprint(stderr, "cal: cannot make window: %r\n");
raise "fail:cannot make window";
}
(sched, err) := Schedule.new(scheddir);
if (sched == nil)
sys->fprint(stderr, "cal: cannot load schedule: %s\n", err);
currtime := daytime->local(daytime->now());
if (currtime == nil) {
sys->fprint(stderr, "cannot get local time: %r\n");
raise "fail:failed to get local time";
}
date := tm2date(currtime);
sys->pctl(Sys->NEWPGRP|Sys->FORKNS, nil);
cmdch := chan of string;
tk->namechan(top, cmdch, "cmd");
wincmds := array[] of {
"frame .ctf",
"button .ctf.set -text {"+X("Set")+"} -command {send cmd settime}",
"button .ctf.show -text {"+X("Show")+"} -command {send cmd showtime}",
"frame .cf -bd 2 -relief raised",
"frame .cf.head",
"button .cf.head.bwd -text {<<} -command {send cmd bwdmonth}",
"button .cf.head.fwd -text {>>} -command {send cmd fwdmonth}",
"label .cf.head.date -text {XXX 0000}",
"frame .schedf -bd 2 -relief raised",
"frame .schedf.head",
"button .schedf.head.save -text {"+X("Save")+"} -command {send cmd save}",
"button .schedf.head.del -text {"+X("Del")+"} -command {send cmd del}",
"label .schedf.head.date -text {0000/00/00}",
"canvas .schedf.head.markset",
"button .schedf.head.bwd -text {<<} -command {send cmd bwdday}",
"button .schedf.head.fwd -text {>>} -command {send cmd fwdday}",
"frame .schedf.tf",
"scrollbar .schedf.tf.scroll -command {.schedf.tf.t yview}",
"text .schedf.tf.t -wrap word -yscrollcommand {.schedf.tf.scroll set} -height 7h -width 20w",
"bind .schedf.tf.t <Key> +{send cmd dirty}",
};
tkcmds(top, wincmds);
(cal, calch) := Cal.make(top, sched, ".cf.cal");
sync := chan of int;
spawn clock(top, ".ctf.date", sync);
clockpid := <-sync;
(ms, msch) := Markset.new(top, cal, ".schedf.head.markset");
tkcmds(top, packcmds);
if (sched == nil)
cmd(top, "pack forget .schedf");
showdate(top, cal, ms, date);
cmd(top, "pack propagate . 0");
cmd(top, "update");
if (date < 19700002)
raisesettime(ctxt, top);
setting := 0;
dirty := 0;
empty := scheduleempty(top);
currsched := 0;
tkclient->onscreen(top, nil);
tkclient->startinput(top, "kbd"::"ptr"::nil);
for (;;) {
enable(top, Savebut, dirty);
enable(top, Delbut, !empty);
cmd(top, "update");
ndate := date;
alt {
c := <-calch =>
(y,m,d) := date2ymd(date);
d = int c;
ndate = ymd2date(y,m,d);
c := <-msch =>
ms.ctl(c);
cal.mark(Entry(date, ms.get()));
dirty = 1;
c := <-cmdch =>
case c {
"dirty" =>
dirty = 1;
nowempty := scheduleempty(top);
if (nowempty != empty) {
if (nowempty) {
ms.set(0);
cal.mark(Entry(date, 0));
} else {
ms.set(1);
cal.mark(Entry(date, ms.get()));
}
empty = nowempty;
}
"bwdmonth" =>
ndate = decmonth(date);
"fwdmonth" =>
ndate = incmonth(date);
"bwdday" =>
ndate = adddays(date, -1);
"fwdday" =>
ndate = adddays(date, 1);
"del" =>
if (!empty) {
cmd(top, ".schedf.tf.t delete 1.0 end");
empty = 1;
dirty = 1;
cal.mark(Entry(date, 0));
}
"save" =>
if (dirty && save(ctxt, top, cal, ms, date) != -1)
dirty = 0;
"settime" =>
raisesettime(ctxt, top);
"showtime" =>
ndate = tm2date(daytime->local(daytime->now()));
* =>
sys->fprint(stderr, "cal: unknown command '%s'\n", c);
}
s := <-top.ctxt.kbd =>
tk->keyboard(top, s);
s := <-top.ctxt.ptr =>
tk->pointer(top, *s);
c := <-top.ctxt.ctl or
c = <-top.wreq or
c = <-wmctl =>
if (c == "exit" && dirty)
save(ctxt, top, cal, ms, date);
tkclient->wmctl(top, c);
}
if (ndate != date) {
e := 0;
if (dirty)
e = save(ctxt, top, cal, ms, date);
if (e != -1) {
dirty = 0;
showdate(top, cal, ms, ndate);
empty = scheduleempty(top);
date = ndate;
cmd(top, "update");
}
}
}
}
Markset.new(top: ref Tk->Toplevel, cal: ref Cal, w: string): (ref Markset, chan of string)
{
cmd(top, w+" configure -width "+string (cal.dx * 2 + 6) +
" -height "+string (cal.dy + 4));
ch := chan of string;
tk->namechan(top, ch, "markcmd");
return (ref Markset(top, cal, w, 0), ch);
}
Markset.set(m: self ref Markset, kind: int)
{
cmd(m.top, m.w + " delete x");
if (kind > 0) {
(shape, col) := kind2shapecol(kind);
id := cmd(m.top, m.w + " create " +
shapestr(m.cal, (m.cal.dx/2+2, m.cal.dy/2+2), Square) +
" -fill " + colours[col] + " -tags x");
cmd(m.top, m.w + " bind " + id + " <ButtonRelease-1> {send markcmd col}");
id = cmd(m.top, m.w + " create " +
shapestr(m.cal, (m.cal.dx * 3 / 2+4, m.cal.dy/2+2), shape) +
" -tags x -width 2");
cmd(m.top, m.w + " bind " + id + " <ButtonRelease-1> {send markcmd shape}");
}
m.curr = kind;
}
Markset.get(m: self ref Markset): int
{
return m.curr;
}
Markset.ctl(m: self ref Markset, c: string)
{
(shape, col) := kind2shapecol(m.curr);
case c {
"col" => col = (col + 1) % len colours;
"shape" => shape = (shape + 1) % Numshapes;
}
m.set(shapecol2kind((shape, col)));
}
scheduleempty(top: ref Tk->Toplevel): int
{
return int cmd(top, ".schedf.tf.t compare 1.0 == end");
}
enable(top: ref Tk->Toplevel, but: string, enable: int)
{
cmd(top, but + " configure -state " +
(array[] of {"disabled", "normal"})[!!enable]);
}
save(ctxt: ref Draw->Context, top: ref Tk->Toplevel, cal: ref Cal, ms: ref Markset, date: int): int
{
s := cmd(top, ".schedf.tf.t get 1.0 end");
empty := scheduleempty(top);
mark := ms.get();
if (empty)
mark = 0;
ent := Entry(date, mark);
cal.mark(ent);
(ok, err) := cal.sched.setentry(ent, s);
if (ok == -1) {
notice(ctxt, top, "Cannot save entry: " + err);
return -1;
}
return 0;
}
notice(ctxt: ref Draw->Context, top: ref Tk->Toplevel, s: string)
{
dialog->prompt(ctxt, top.image, nil, "Notice", s, 0, "OK"::nil);
}
showdate(top: ref Tk->Toplevel, cal: ref Cal, ms: ref Markset, date: int)
{
(y,m,d) := date2ymd(date);
cal.show(date);
cmd(top, ".cf.head.date configure -text {" + sys->sprint("%.4d/%.2d", y, m+1) + "}");
cmd(top, ".schedf.head.date configure -text {" + sys->sprint("%.4d/%.2d/%.2d", y, m+1, d) + "}");
(ent, s) := cal.sched.readentry(date);
ms.set(ent.mark);
cmd(top, ".schedf.tf.t delete 1.0 end; .schedf.tf.t insert 1.0 '" + s);
}
nomod(s: string)
{
sys->fprint(stderr, "cal: cannot load %s: %r\n", s);
raise "fail:bad module";
}
loadmods()
{
sys = load Sys Sys->PATH;
stderr = sys->fildes(2);
draw = load Draw Draw->PATH;
tk = load Tk Tk->PATH;
daytime = load Daytime Daytime->PATH;
if (daytime == nil)
nomod(Daytime->PATH);
tkclient = load Tkclient Tkclient->PATH;
if (tkclient == nil)
nomod(Tkclient->PATH);
translate = load Translate Translate->PATH;
if(translate != nil){
translate->init();
(dict, nil) = translate->opendict(translate->mkdictname("", "calendar"));
}
tkclient->init();
arg = load Arg Arg->PATH;
if (arg == nil)
nomod(Arg->PATH);
dialog = load Dialog Dialog->PATH;
if(dialog == nil)
nomod(Dialog->PATH);
dialog->init();
}
s2a(s: string, min, max: int, sep: string): array of int
{
(ntoks, toks) := sys->tokenize(s, sep);
if (ntoks < min || ntoks > max)
return nil;
a := array[max] of int;
for (i := 0; toks != nil; toks = tl toks) {
if (!isnum(hd toks))
return nil;
a[i++] = int hd toks;
}
return a[0:i];
}
validtm(t: ref Daytime->Tm): int
{
if (t.hour < 0 || t.hour > 23
|| t.min < 0 || t.min > 59
|| t.sec < 0 || t.sec > 59
|| t.mday < 1 || t.mday > 31
|| t.mon < 0 || t.mon > 11
|| t.year < 70 || t.year > 137)
return 0;
if (t.mon == 1 && dysize(t.year+1900) > 365)
return t.mday <= 29;
return t.mday <= dmsize[t.mon];
}
clock(top: ref Tk->Toplevel, w: string, sync: chan of int)
{
cmd(top, "label " + w);
fd := sys->open("/dev/time", Sys->OREAD);
if (fd == nil) {
sync <-= -1;
return;
}
buf := array[128] of byte;
for (;;) {
sys->seek(fd, big 0, Sys->SEEKSTART);
n := sys->read(fd, buf, len buf);
if (n < 0) {
sys->fprint(stderr, "cal: could not read time: %r\n");
if (sync != nil)
sync <-= -1;
break;
}
ms := big string buf[0:n] / big 1000;
ct := ms / big 1000;
t := daytime->local(int ct);
s := sys->sprint("%s %s %d %.2d:%.2d.%.2d",
days[t.wday], months[t.mon], t.mday, t.hour, t.min, t.sec);
cmd(top, w + " configure -text {" + s + "}");
cmd(top, "update");
if (sync != nil) {
sync <-= sys->pctl(0, nil);
sync = nil;
}
sys->sleep(int ((ct + big 1) * big 1000 - ms));
}
}
# "the world is the lord's and all it contains,
# save the highlands and islands, which belong to macbraynes"
Cal.make(top: ref Tk->Toplevel, sched: ref Schedule, w: string): (ref Cal, chan of string)
{
f := Font.open(top.display, font);
if (f == nil) {
sys->fprint(stderr, "cal: could not open font %s: %r\n", font);
font = cmd(top, ". cget -font");
f = Font.open(top.display, font);
}
if (f == nil)
return (nil, nil);
maxw := 0;
for (i := 0; i < 7; i++) {
if ((dw := f.width(days[i] + " ")) > maxw)
maxw = dw;
}
for (i = 10; i < 32; i++) {
if ((dw := f.width(string i + " ")) > maxw)
maxw = dw;
}
cal := ref Cal;
cal.w = w;
cal.dx = maxw;
cal.dy = f.height;
cal.onepos = 0;
cal.top = top;
cal.sched = sched;
cal.marked = array[31] of {* => 0};
cmd(top, "canvas " + w + " -width " + string (cal.dx * 7) + " -height " + string (cal.dy * 7));
for (i = 0; i < 7; i++)
cmd(top, w + " create text " + posstr(daypos(cal, i, 0))
+ " -text " + days[i] + " -font " + font);
ch := chan of string;
tk->namechan(top, ch, "ch" + w);
return (cal, ch);
}
Cal.show(cal: self ref Cal, date: int)
{
if (date == cal.date)
return;
mon := (date / 100) % 100;
year := date / 10000;
cmd(cal.top, cal.w + " delete curr");
if (cal.date / 100 != date / 100) {
cmd(cal.top, cal.w + " delete date");
cmd(cal.top, cal.w + " delete mark");
for (i := 0; i < len cal.marked; i++)
cal.marked[i] = 0;
(md, wd) := monthinfo(mon, year);
base := year * 10000 + mon * 100;
cal.onepos = wd;
for (i = 0; i < 6; i++) {
for (j := 0; j < 7; j++) {
d := i * 7 + j - wd;
if (d >= 0 && d < md) {
id := cmd(cal.top, cal.w + " create text " + posstr(daypos(cal, j, i+1))
+ " -tags date -text " + string (d+1)
+ " -font " + font);
cmd(cal.top, cal.w + " bind " + id +
" <ButtonRelease-1> {send ch" + cal.w + " " + string (d+1) + "}");
(ok, ent) := cal.sched.getentry(base + d + 1);
if (ok != -1)
cal.mark(ent);
}
}
}
}
if (cal.sched != nil) {
e := date % 100 - 1 + cal.onepos;
p := daypos(cal, e % 7, e / 7 + 1);
cmd(cal.top, cal.w + " create " + shapestr(cal, p, Square) +
" -tags curr -width 3");
}
cal.date = date;
}
Cal.mark(cal: self ref Cal, ent: Entry)
{
if (ent.date / 100 != ent.date / 100)
return;
(nil, nil, d) := date2ymd(ent.date);
d--;
cmd(cal.top, cal.w + " delete m" + string d);
if (ent.mark) {
e := d + cal.onepos;
p := daypos(cal, e % 7, e / 7 + 1);
id := cmd(cal.top, cal.w + " create " + itemshape(cal, p, ent.mark) +
" -tags {mark m"+string d + "}");
cmd(cal.top, cal.w + " bind " + id +
" <ButtonRelease-1> {send ch" + cal.w + " " + string (d+1) + "}");
cmd(cal.top, cal.w + " lower " + id);
}
cal.marked[d] = ent.mark;
}
Oval, Diamond, Square, Numshapes: con iota;
colours := array[] of {
"red",
"yellow",
"#00eeee",
"white"
};
kind2shapecol(kind: int): (int, int)
{
kind = (kind - 1) & 16rffff;
return ((kind & 16rff) % Numshapes, (kind >> 8) % len colours);
}
shapecol2kind(shapecol: (int, int)): int
{
(shape, colour) := shapecol;
return (shape + (colour << 8)) + 1;
}
itemshape(cal: ref Cal, centre: Point, kind: int): string
{
(shape, colour) := kind2shapecol(kind);
return shapestr(cal, centre, shape) + " -fill " + colours[colour];
}
shapestr(cal: ref Cal, p: Point, kind: int): string
{
(hdx, hdy) := (cal.dx / 2, cal.dy / 2);
case kind {
Oval =>
r := Rect((p.x - hdx, p.y - hdy), (p.x + hdx, p.y + hdy));
return "oval " + rectstr(r);
Diamond =>
return "polygon " + string (p.x - hdx) + " " + string p.y + " " +
string p.x + " " + string (p.y - hdy) + " " +
string (p.x + hdx) + " " + string p.y + " " +
string p.x + " " + string (p.y + hdy) +
" -outline black";
Square =>
r := Rect((p.x - hdx, p.y - hdy), (p.x + hdx, p.y + hdy));
return "rectangle " + rectstr(r);
* =>
sys->fprint(stderr, "cal: unknown shape %d\n", kind);
return nil;
}
}
rectstr(r: Rect): string
{
return string r.min.x + " " + string r.min.y + " " +
string r.max.x + " " + string r.max.y;
}
posstr(p: Point): string
{
return string p.x + " " + string p.y;
}
# return centre point of position for day.
daypos(cal: ref Cal, d, w: int): Point
{
return Point(d * cal.dx + cal.dx / 2, w * cal.dy + cal.dy / 2);
}
body2entry(body: string): (int, Entry, string)
{
for (i := 0; i < len body; i++)
if (body[i] == '\n')
break;
if (i == len body)
return (-1, (-1, -1), "invalid schedule header (no newline)");
(n, toks) := sys->tokenize(body[0:i], " \t\n");
if (n < 2)
return (-1, (-1, -1), "invalid schedule header (too few fields)");
date := int hd toks;
(y, m, d) := (date / 10000, (date / 100) % 100, date%100);
if (y < 1970 || y > 2037 || m > 12 || m < 1 || d > 31 || d < 1)
return (-1, (-1,-1), sys->sprint("invalid date (%.8d) in schedule header", date));
e := Entry(ymd2date(y, m-1, d), int hd tl toks);
return (0, e, body[i+1:]);
}
startdbfs(f: string): (string, string)
{
dbfs := load Command DBFSPATH;
if (dbfs == nil)
return (nil, sys->sprint("cannot load %s: %r", DBFSPATH));
sync := chan of string;
spawn rundbfs(sync, dbfs, f, SCHEDDIR);
e := <-sync;
if (e != nil)
return (nil, e);
return (SCHEDDIR, nil);
}
rundbfs(sync: chan of string, dbfs: Command, f, d: string)
{
sys->pctl(Sys->FORKFD, nil);
{
dbfs->init(nil, "dbfs" :: "-r" :: f :: d :: nil);
sync <-= nil;
}exception e{
"fail:*" =>
sync <-= "dbfs failed: " + e[5:];
exit;
}
}
Schedule.new(d: string): (ref Schedule, string)
{
(rc, info) := sys->stat(d);
if (rc == -1)
return (nil, sys->sprint("cannot find %s: %r", d));
if ((info.mode & Sys->DMDIR) == 0) {
err: string;
(d, err) = startdbfs(d);
if (d == nil)
return (nil, err);
}
(rc, nil) = sys->stat(d + "/new");
if (rc == -1)
return (nil, "no dbfs mounted on " + d);
readdir := load Readdir Readdir->PATH;
if (readdir == nil)
return (nil, sys->sprint("cannot load %s: %r", Readdir->PATH));
sched := ref Schedule;
sched.dir = d;
(de, nil) := readdir->init(d, Readdir->NONE);
if (de == nil)
return (nil, "could not read schedule directory");
buf := array[Sys->ATOMICIO] of byte;
sched.entries = array[len de] of Sentry;
ne := 0;
for (i := 0; i < len de; i++) {
if (!isnum(de[i].name))
continue;
f := d + "/" + de[i].name;
fd := sys->open(f, Sys->OREAD);
if (fd == nil) {
sys->fprint(stderr, "cal: cannot open %s: %r\n", f);
} else {
n := sys->read(fd, buf, len buf);
if (n == -1) {
sys->fprint(stderr, "cal: error reading %s: %r\n", f);
} else {
(ok, e, err) := body2entry(string buf[0:n]);
if (ok == -1)
sys->fprint(stderr, "cal: error on entry %s: %s\n", f, err);
else
sched.entries[ne++] = (e, int de[i].name);
err = nil;
}
}
}
sched.entries = sched.entries[0:ne];
sortentries(sched.entries);
return (sched, nil);
}
Schedule.getentry(sched: self ref Schedule, date: int): (int, Entry)
{
if (sched == nil)
return (-1, (-1, -1));
ent := search(sched, date);
if (ent == -1)
return (-1, (-1,-1));
return (0, sched.entries[ent].ent);
}
Schedule.readentry(sched: self ref Schedule, date: int): (Entry, string)
{
if (sched == nil)
return ((-1, -1), nil);
ent := search(sched, date);
if (ent == -1)
return ((-1, -1), nil);
(nil, fno) := sched.entries[ent];
f := sched.dir + "/" + string fno;
fd := sys->open(f, Sys->OREAD);
if (fd == nil) {
sys->fprint(stderr, "cal: cannot open %s: %r", f);
return ((-1, -1), nil);
}
buf := array[Sys->ATOMICIO] of byte;
n := sys->read(fd, buf, len buf);
if (n == -1) {
sys->fprint(stderr, "cal: cannot read %s: %r", f);
return ((-1, -1), nil);
}
(ok, e, body) := body2entry(string buf[0:n]);
if (ok == -1) {
sys->fprint(stderr, "cal: couldn't get body in file %s: %s\n", f, body);
return ((-1, -1), nil);
}
return (e, body);
}
writeentry(fd: ref Sys->FD, ent: Entry, data: string): (int, string)
{
ent.date += 100;
b := array of byte (sys->sprint("%d %d\n", ent.date, ent.mark) + data);
if (len b > Sys->ATOMICIO)
return (-1, "entry is too long");
if (sys->write(fd, b, len b) != len b)
return (-1, sys->sprint("cannot write entry: %r"));
return (0, nil);
}
Schedule.setentry(sched: self ref Schedule, ent: Entry, data: string): (int, string)
{
if (sched == nil)
return (-1, "no schedule");
idx := search(sched, ent.date);
if (idx == -1) {
if (data == nil)
return (0, nil);
fd := sys->open(sched.dir + "/new", Sys->OWRITE);
if (fd == nil)
return (-1, sys->sprint("cannot open new: %r"));
(ok, info) := sys->fstat(fd);
if (ok == -1)
return (-1, sys->sprint("cannot stat new: %r"));
if (!isnum(info.name))
return (-1, "new dbfs entry is not numeric");
err: string;
(ok, err) = writeentry(fd, ent, data);
if (ok == -1)
return (ok, err);
(fd, data) = (nil, nil);
e := sched.entries;
for (i := 0; i < len e; i++)
if (ent.date < e[i].ent.date)
break;
ne := array[len e + 1] of Sentry;
(ne[0:], ne[i], ne[i+1:]) = (e[0:i], (ent, int info.name), e[i:]);
sched.entries = ne;
return (0, nil);
} else {
fno := sched.entries[idx].file;
f := sched.dir + "/" + string fno;
if (data == nil) {
sys->remove(f);
sched.entries[idx:] = sched.entries[idx+1:];
sched.entries = sched.entries[0:len sched.entries - 1];
return (0, nil);
} else {
sched.entries[idx] = (ent, fno);
fd := sys->open(f, Sys->OWRITE);
if (fd == nil)
return (-1, sys->sprint("cannot open %s: %r", sched.dir + "/" + string fno));
return writeentry(fd, ent, data);
}
}
}
search(sched: ref Schedule, date: int): int
{
e := sched.entries;
lo := 0;
hi := len e - 1;
while (lo <= hi) {
mid := (lo + hi) / 2;
if (date < e[mid].ent.date)
hi = mid - 1;
else if (date > e[mid].ent.date)
lo = mid + 1;
else
return mid;
}
return -1;
}
sortentries(a: array of Sentry)
{
m: int;
n := len a;
for(m = n; m > 1; ) {
if(m < 5)
m = 1;
else
m = (5*m-1)/11;
for(i := n-m-1; i >= 0; i--) {
tmp := a[i];
for(j := i+m; j <= n-1 && tmp.ent.date > a[j].ent.date; j += m)
a[j-m] = a[j];
a[j-m] = tmp;
}
}
}
raisesettime(ctxt: ref Draw->Context, top: ref Tk->Toplevel)
{
panelcmds := array[] of {
"frame .d",
"label .d.title -text {"+X("Date (YYYY/MM/DD):")+"}",
"entry .d.de -width 11w}",
"frame .t",
"label .t.title -text {"+X("Time (HH:MM.SS):")+"}",
"entry .t.te -width 11w}",
"frame .b",
"button .b.set -text Set -command {send cmd set}",
"button .b.cancel -text Cancel -command {send cmd cancel}",
"pack .d .t .b -side top -fill x",
"pack .d.de .d.title -side right",
"pack .t.te .t.title -side right",
"pack .b.set .b.cancel -side right",
};
fd := sys->open("/dev/time", Sys->OWRITE);
if (fd == nil) {
notice(ctxt, top, X("Cannot set time: ") + sys->sprint("%r"));
return;
}
(panel, wmctl) := tkclient->toplevel(ctxt, "", X("Set Time"), 0);
tkcmds(panel, panelcmds);
cmdch := chan of string;
tk->namechan(panel, cmdch, "cmd");
t := daytime->local(daytime->now());
if (t.year < 71)
(t.year, t.mon, t.mday) = (100, 0, 1);
cmd(panel, ".d.de insert 0 " + sys->sprint("%.4d/%.2d/%.2d",
t.year+1900, t.mon+1, t.mday));
cmd(panel, ".t.te insert 0 " + sys->sprint("%.2d:%.2d.%.2d", t.hour, t.min, t.sec));
#cmd(panel, "grab set ."); XXX should, but not a good idea with global tk.
# wouldn't work with current dialog->prompt() either...
cmd(panel, "update");
tkclient->onscreen(panel, nil);
tkclient->startinput(panel, "kbd"::"ptr"::nil);
loop: for (;;) alt {
s := <-panel.ctxt.kbd =>
tk->keyboard(panel, s);
s := <-panel.ctxt.ptr =>
tk->pointer(panel, *s);
c := <-cmdch =>
case c {
"set" =>
err := settime(fd, cmd(panel, ".d.de get"), cmd(panel, ".t.te get"));
if (err == nil)
break loop;
notice(ctxt, panel, X("Cannot set time: ") + err);
"cancel" =>
break loop;
* =>;
}
c := <-wmctl =>
case c {
"exit" =>
break loop;
* =>
tkclient->wmctl(panel, c);
}
}
}
settime(tfd: ref Sys->FD, date, time: string): string
{
da := s2a(date, 3, 3, "/");
if (da == nil)
return X("Invalid date syntax");
ta := s2a(time, 2, 3, ":.");
if (ta == nil)
return X("Invalid time syntax");
t := ref blanktm;
if (da[2] > 1000)
(da[0], da[1], da[2]) = (da[2], da[1], da[0]);
(t.year, t.mon, t.mday) = (da[0]-1900, da[1]-1, da[2]);
if (len ta == 3)
(t.hour, t.min, t.sec) = (ta[0], ta[1], ta[2]);
else
(t.hour, t.min, t.sec) = (ta[0], ta[1], 0);
if (!validtm(t))
return X("Invalid time or date given");
s := string daytime->tm2epoch(t) + "000000";
if (sys->fprint(tfd, "%s", s) == -1)
return X("write failed:") + sys->sprint(" %r");
return nil;
}
cmd(top: ref Tk->Toplevel, cmd: string): string
{
e := tk->cmd(top, cmd);
if (e != nil && e[0] == '!')
sys->fprint(stderr, "cal: tk error on '%s': %s\n", cmd, e);
return e;
}
tkcmds(top: ref Tk->Toplevel, a: array of string)
{
for (i := 0; i < len a; i++)
cmd(top, a[i]);
}
isnum(s: string): int
{
for (i := 0; i < len s; i++)
if (s[i] < '0' || s[i] > '9')
return 0;
return 1;
}
tm2date(t: ref Tm): int
{
if (t == nil)
return 19700001;
return ymd2date(t.year+1900, t.mon, t.mday);
}
date2ymd(date: int): (int, int, int)
{
return (date / 10000, (date / 100) % 100, date%100);
}
ymd2date(y, m, d: int): int
{
return d + m* 100 + y * 10000;
}
adddays(date, delta: int): int
{
t := ref blanktm;
t.mday = date % 100;
t.mon = (date / 100) % 100;
t.year = (date / 10000) - 1900;
t.hour = 12;
e := daytime->tm2epoch(t);
e += delta * 24 * 60 * 60;
t = daytime->gmt(e);
if (!validtm(t))
return date;
return tm2date(t);
}
incmonth(date: int): int
{
(y,m,d) := date2ymd(date);
if (m < 11)
m++;
else if (y < 2037)
(y, m) = (y+1, 0);
(n, nil) := monthinfo(m, y);
if (d > n)
d = n;
return ymd2date(y,m,d);
}
decmonth(date: int): int
{
(y,m,d) := date2ymd(date);
if (m > 0)
m--;
else if (y > 1970)
(y, m) = (y-1, 11);
(n, nil) := monthinfo(m, y);
if (d > n)
d = n;
return ymd2date(y,m,d);
}
dmsize := array[] of {
31, 28, 31, 30, 31, 30,
31, 31, 30, 31, 30, 31
};
dysize(y: int): int
{
if( (y%4) == 0 && (y % 100 != 0 || y % 400 == 0) )
return 366;
return 365;
}
blanktm: Tm;
# return number of days in month and
# starting day of month/year.
monthinfo(mon, year: int): (int, int)
{
t := ref blanktm;
t.mday = 1;
t.mon = mon;
t.year = year - 1900;
t = daytime->gmt(daytime->tm2epoch(t));
md := dmsize[mon];
if (dysize(year) == 366 && t.mon == 1)
md++;
return (md, t.wday);
}
X(s: string): string
{
#sys->print("\"%s\"\n", s);
if (dict == nil)
return s;
return dict.xlate(s);
}
Xa(a: array of string): array of string
{
for (i := 0; i < len a; i++)
a[i] = X(a[i]);
return a;
}