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|
implement Volumectl;
include "sys.m";
sys: Sys;
sprint: import sys;
include "draw.m";
draw: Draw;
Context, Display, Font, Rect, Point, Image, Screen, Pointer: import draw;
include "prefab.m";
prefab: Prefab;
Style, Element, Compound, Environ: import prefab;
include "muxclient.m";
include "volume.m";
include "bufio.m";
bufio: Bufio;
Iobuf: import bufio;
include "ir.m";
screen: ref Screen;
display: ref Display;
windows: array of ref Image;
env: ref Environ;
zr := ((0,0),(0,0));
el, et: ref Element;
style: ref Style;
c: ref Compound;
tics: int;
INTERVAL: con 500;
value: int;
ones, white, red: ref Image;
volumectl(ctxt: ref Context, ch: chan of int, var: string)
{
key: int;
sys = load Sys Sys->PATH;
draw = load Draw Draw->PATH;
prefab = load Prefab Prefab->PATH;
if ((bufio = load Bufio Bufio->PATH) == nil) {
sys->print("Audioctl: Can't load bufio\n");
exit;
}
if ((ac := bufio->open("/dev/volume", bufio->ORDWR)) == nil) {
sys->print("Audioctl: Can't open /dev/volume: %r\n");
exit;
}
screen = ctxt.screen;
display = ctxt.display;
windows = array[1] of ref Image;
ones = display.opaque;
white = display.color(draw->White);
red = display.color(draw->Red);
textfont := Font.open(display, "*default*");
style = ref Style(
textfont, # titlefont
textfont, # textfont
display.color(draw->White), # elemcolor
display.color(draw->Black), # edgecolor
display.color(draw->Yellow), # titlecolor
display.color(draw->Black), # textcolor
display.color(130)); # highlightcolor
env = ref Environ (ctxt.screen, style);
slavectl := chan of int;
spawn timerslave(slavectl);
while ((s := ac.gets('\n')) != nil) {
sp := -1;
for (i := 0; i < len s; i++) if (s[i] == ' ') sp = i;
if (sp <= 1) {
sys->print("Volume: /dev/volume bad:\n%s\n", s);
exit;
}
if (var == s[0:sp]) {
value = int s[sp+1:];
}
}
for(;;) {
key = <- ch;
case key {
Ir->Enter =>
slavectl <-= Muxclient->AMexit;
return;
Ir->VolUP =>
if (value++ >= 100) value = 100;
ac.puts(sprint("%s %d\n", var, value));
displayslider();
Ir->VolDN =>
if (value-- <= 0) value = 0;
ac.puts(sprint("%s %d\n", var, value));
displayslider();
}
}
}
slider(): ref Element
{
r: Rect;
r = ((0,0),(200,20));
chans := display.image.chans;
icon := display.newimage(r.inset(-2), chans, 0, draw->Black);
icon.draw(r, white, ones, (0,0));
rr := r;
rr.max.x = 2*value;
icon.draw(rr, red, ones, (0,0));
return Element.icon(env, zr, icon, ones);
}
displayslider()
{
if (et == nil) {
et = Element.text(env, "Volume", zr, Prefab->EText);
el = slider();
}
img := el.image;
r: Rect = ((0,0),(200,20));
img.draw(r, white, nil, (0,0));
r.max.x = 2*value;
img.draw(r, red, nil, (0,0));
if (c == nil) {
c = Compound.box(env, Point(100, 100), et, el);
windows[0] = c.image;
}
c.draw();
screen.top(windows);
tics = 5;
}
timerslave(ctl: chan of int)
{
m: int;
for(;;) {
sys->sleep(INTERVAL);
if (tics-- <= 0) {
tics = 0;
c = nil;
el = nil;
et = nil;
windows[0] = nil;
}
alt{
m = <-ctl =>
return;
* =>
continue;
}
}
}
|
