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#include <u.h>
#include <libc.h>
#include <draw.h>
#include <thread.h>
#include <mouse.h>
#include <keyboard.h>
#include <control.h>
typedef struct Radio Radio;
struct Radio
{
Control;
int value;
int lastbut;
Control **buttons;
int nbuttons;
char *eventstr;
};
enum{
EAdd,
EButton,
EFocus,
EFormat,
EHide,
ERect,
EReveal,
EShow,
ESize,
EValue,
};
static char *cmds[] = {
[EAdd] = "add",
[EButton] = "button",
[EFocus] = "focus",
[EFormat] = "format",
[EHide] = "hide",
[ERect] = "rect",
[EReveal] = "reveal",
[EShow] = "show",
[ESize] = "size",
[EValue] = "value",
nil
};
static void radioshow(Radio*);
static void
radiomouse(Control *c, Mouse *m)
{
Radio *r;
int i;
r = (Radio*)c;
for(i=0; i<r->nbuttons; i++)
if(ptinrect(m->xy, r->buttons[i]->rect) && r->buttons[i]->mouse){
(r->buttons[i]->mouse)(r->buttons[i], m);
break;
}
}
static void
radioshow(Radio *r)
{
int i;
if (r->hidden)
return;
for(i=0; i<r->nbuttons; i++){
_ctlprint(r->buttons[i], "value %d", (r->value==i));
_ctlprint(r->buttons[i], "show");
}
}
static void
radioctl(Control *c, CParse *cp)
{
int cmd, i;
Rectangle rect;
Radio *r;
char fmt[256];
r = (Radio*)c;
cmd = _ctllookup(cp->args[0], cmds, nelem(cmds));
switch(cmd){
default:
ctlerror("%q: unrecognized message '%s'", r->name, cp->str);
break;
case EAdd:
_ctlargcount(r, cp, 2);
c = controlcalled(cp->args[1]);
if(c == nil)
ctlerror("%q: can't add %s: %r", r->name, cp->args[1]);
snprint(fmt, sizeof fmt, "%%q: %q button %%d", r->name);
_ctlprint(c, "format %q", fmt);
controlwire(c, "event", c->controlset->ctl);
r->buttons = ctlrealloc(r->buttons, (r->nbuttons+1)*sizeof(Control*));
r->buttons[r->nbuttons] = c;
r->nbuttons++;
r->value = -1;
radioshow(r);
break;
case EButton:
if (cp->sender == nil)
ctlerror("%q: senderless buttonevent: %q", r->name, cp->str);
c = controlcalled(cp->sender);
for(i=0; i<r->nbuttons; i++)
if (c == r->buttons[i])
break;
if (i == r->nbuttons)
ctlerror("%q: not my event: %q", r->name, cp->str);
if(cp->iargs[1] == 0){
/* button was turned off; turn it back on */
_ctlprint(c, "value 1");
}else{
r->value = i;
chanprint(r->event, r->format, r->name, i);
radioshow(r);
}
break;
case EFormat:
_ctlargcount(r, cp, 2);
r->format = ctlstrdup(cp->args[1]);
break;
case EHide:
_ctlargcount(r, cp, 1);
r->hidden = 1;
break;
case EFocus:
/* ignore focus change */
break;
case ERect:
_ctlargcount(r, cp, 5);
rect.min.x = cp->iargs[1];
rect.min.y = cp->iargs[2];
rect.max.x = cp->iargs[3];
rect.max.y = cp->iargs[4];
r->rect = rect;
break;
case EReveal:
_ctlargcount(r, cp, 1);
r->hidden = 0;
radioshow(r);
break;
case EShow:
_ctlargcount(r, cp, 1);
radioshow(r);
break;
case ESize:
if (cp->nargs == 3)
rect.max = Pt(0x7fffffff, 0x7fffffff);
else{
_ctlargcount(r, cp, 5);
rect.max.x = cp->iargs[3];
rect.max.y = cp->iargs[4];
}
rect.min.x = cp->iargs[1];
rect.min.y = cp->iargs[2];
if(rect.min.x<=0 || rect.min.y<=0 || rect.max.x<=0 || rect.max.y<=0 || rect.max.x < rect.min.x || rect.max.y < rect.min.y)
ctlerror("%q: bad sizes: %s", r->name, cp->str);
r->size.min = rect.min;
r->size.max = rect.max;
break;
case EValue:
_ctlargcount(r, cp, 2);
r->value = cp->iargs[1];
radioshow(r);
break;
}
}
Control*
createradiobutton(Controlset *cs, char *name)
{
Radio *r;
r = (Radio*)_createctl(cs, "label", sizeof(Radio), name);
r->format = ctlstrdup("%q: value %d");
r->value = -1; /* nobody set at first */
r->mouse = radiomouse;
r->ctl = radioctl;
return (Control*)r;
}
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