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|
implement Test;
include "sys.m";
include "draw.m";
draw: Draw;
Screen, Display, Image: import draw;
include "tk.m";
Test: module
{
init: fn(ctxt: ref Draw->Context, argv: list of string);
};
tk: Tk;
sys: Sys;
init(nil: ref Draw->Context, argv: list of string)
{
cmd: string;
sys = load Sys Sys->PATH;
draw = load Draw Draw->PATH;
tk = load Tk Tk->PATH;
display := Display.allocate(nil);
if(display == nil) {
sys->print("can't initialize display: %r\n");
return;
}
disp := display.image;
screen := Screen.allocate(disp, display.rgb(161, 195, 209), 1);
if(screen == nil) {
sys->print("can't allocate screen: %r\n");
return;
}
fd := sys->open("/dev/pointer", sys->OREAD);
if(fd == nil) {
sys->print("open: %s: %r\n", "/dev/pointer");
sys->print("run wm/wish instead\n");
return;
}
t := tk->toplevel(display, "");
spawn mouse(t, fd);
spawn keyboard(t);
disp.draw(disp.r, screen.fill, nil, disp.r.min);
input := array[8192] of byte;
stdin := sys->fildes(0);
if(argv != nil)
argv = tl argv;
while(argv != nil) {
exec(t, hd argv);
argv = tl argv;
}
for(;;) {
tk->cmd(t, "update");
prompt := '%';
if(cmd != nil)
prompt = '>';
sys->print("%c ", prompt);
n := sys->read(stdin, input, len input);
if(n <= 0)
break;
if(n == 1)
continue;
cmd += string input[0:n-1];
if(cmd[len cmd-1] != '\\') {
cmd = esc(cmd);
s := tk->cmd(t, cmd);
if(len s != 0)
sys->print("%s\n", s);
cmd = nil;
continue;
}
cmd = cmd[0:len cmd-1];
}
}
esc(s: string): string
{
c: int;
for(i := 0; i < len s; i++) {
if(s[i] != '\\')
continue;
case s[i+1] {
'n'=> c = '\n';
't'=> c = '\t';
'b'=> c = '\b';
'\\'=> c = '\\';
* => c = 0;
}
if(c != 0) {
s[i] = c;
s = s[0:i+1]+s[i+2:len s];
}
}
return s;
}
exec(t: ref Tk->Toplevel, path: string)
{
fd := sys->open(path, sys->OREAD);
if(fd == nil) {
sys->print("open: %s: %r\n", path);
return;
}
(ok, d) := sys->fstat(fd);
if(ok < 0) {
sys->print("fstat: %s: %r\n", path);
return;
}
buf := array[int d.length] of byte;
if(sys->read(fd, buf, len buf) < 0) {
sys->print("read: %s: %r\n", path);
return;
}
(n, l) := sys->tokenize(string buf, "\n");
buf = nil;
n = -1;
for(; l != nil; l = tl l) {
n++;
s := hd l;
if(len s == 0 || s[0] == '#')
continue;
while(s[len s-1] == '\\') {
s = s[0:len s-1];
if(tl l != nil) {
l = tl l;
s = s + hd l;
}
else
break;
}
s = tk->cmd(t, esc(s));
if(len s != 0 && s[0] == '!') {
sys->print("%s:%d %s\n", path, n, s);
sys->print("%s:%d %s\n", path, n, hd l);
}
}
}
mouse(t: ref Tk->Toplevel, fd: ref Sys->FD)
{
n := 0;
buf := array[100] of byte;
for(;;) {
n = sys->read(fd, buf, len buf);
if(n <= 0)
break;
if(int buf[0] == 'm' && n >= 1+3*12) {
x := int(string buf[ 1:13]);
y := int(string buf[12:25]);
b := int(string buf[24:37]);
tk->pointer(t, Draw->Pointer(b, Draw->Point(x, y), sys->millisec()));
}
}
}
keyboard(t: ref Tk->Toplevel)
{
dfd := sys->open("/dev/keyboard", sys->OREAD);
if(dfd == nil)
return;
b:= array[1] of byte;
buf := array[10] of byte;
i := 0;
for(;;) {
n := sys->read(dfd, buf[i:], len buf - i);
if(n < 1)
break;
i += n;
while(i >0 && (nutf := sys->utfbytes(buf, i)) > 0){
s := string buf[0:nutf];
tk->keyboard(t, int s[0]);
buf[0:] = buf[nutf:i];
i -= nutf;
}
}
}
|
