ref: 547b21bde31539b21453bfa7a9f8a13b345c7fc5
dir: /uiglue.c/
#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <thread.h>
#include <9p.h>
#include "uiglue.h"
#include "aux.h"
static struct {
FAUSTFLOAT *zone;
Meta *meta;
int nummeta;
}decl;
static char *
ui_readstr(Aux *a, UI *ui, int type, char *s, int sz)
{
char *x;
int i;
if (type == Xuictl) {
switch (a->type) {
case UITGroup: snprint(s, sz, "tgroup\n"); return s;
case UIHGroup: snprint(s, sz, "hgroup\n"); return s;
case UIVGroup: snprint(s, sz, "vgroup\n"); return s;
case UIButton: snprint(s, sz, "button\t%d\n", !!*ui->zone); return s;
case UICheckBox: snprint(s, sz, "checkbox\t%d\n", !!*ui->zone); return s;
case UIVSlider: snprint(s, sz, "vslider\t%g\t%g\t%g\t%g\t%g\n", *ui->zone, ui->init, ui->min, ui->max, ui->step); return s;
case UIHSlider: snprint(s, sz, "hslider\t%g\t%g\t%g\t%g\t%g\n", *ui->zone, ui->init, ui->min, ui->max, ui->step); return s;
case UINEntry: snprint(s, sz, "nentry\t%g\t%g\t%g\t%g\t%g\n", *ui->zone, ui->init, ui->min, ui->max, ui->step); return s;
case UIHBarGraph: snprint(s, sz, "hbargraph\t%g\t%g\t%g\n", *ui->zone, ui->min, ui->max); return s;
case UIVBarGraph: snprint(s, sz, "vbargraph\t%g\t%g\t%g\n", *ui->zone, ui->min, ui->max); return s;
default: sysfatal("unknown ui type %d", a->type);
}
} else if (type == Xuimeta) {
x = s;
*x = 0;
for (i = 0; i < ui->nummeta; i++)
x = seprint(x, s+sz-1, "%s\t%s\n", ui->meta[i].k, ui->meta[i].v);
return s;
} else {
sysfatal("unknown ui file");
}
return nil;
}
static int
ui_write(Aux *a, UI *ui, int type, char *s)
{
int failoor;
float v;
if (type != Xuictl)
sysfatal("unknown ui file");
/* FIXME optional argument should specify at which frame to apply the change */
v = 0.0f;
failoor = 0;
if (strncmp(s, "reset", 5) == 0) { /* FIXME reset for a box should reset ALL controls inside it */
v = ui->init;
} else if (strncmp(s, "add", 3) == 0) {
if (ui->zone != nil)
v = *ui->zone + atof(s+3);
} else if (strncmp(s, "sub", 3) == 0) {
if (ui->zone != nil)
v = *ui->zone - atof(s+3);
} else {
v = atof(s);
failoor = 1;
}
if (ui->zone != nil) {
if (a->type == UIButton || a->type == UICheckBox) {
v = !!v;
} else if (v < ui->min) {
if (failoor)
return -1;
v = ui->min;
} else if (v > ui->max) {
if (failoor)
return -1;
v = ui->max;
}
*ui->zone = v;
}
return 0;
}
static UI *
newui(File *f, const char *label, int type)
{
Aux *a;
a = calloc(1, sizeof(*a)+sizeof(UI) + sizeof(Meta)*decl.nummeta);
a->ui = (UI*)(a+1);
a->ui->meta = (Meta*)(a->ui+1);
a->ui->nummeta = decl.nummeta;
memmove(a->ui->meta, decl.meta, sizeof(Meta)*decl.nummeta);
a->ctl = Xuictl;
a->metadata = Xuimeta;
a->type = type;
a->ui->zone = decl.zone;
a->ui->label = label;
a->ui->readstr = ui_readstr;
a->ui->write = ui_write;
if ((uiglue.uiInterface = createfile(f, label, nil, DMDIR|0775, a)) == nil)
sysfatal("failed to create ui: %r");
if (createfile(uiglue.uiInterface, "ctl", nil, 0664, &a->ctl) == nil)
sysfatal("failed to create ui ctl: %r");
if (createfile(uiglue.uiInterface, "metadata", nil, 0664, &a->metadata) == nil)
sysfatal("failed to create ui metadata: %r");
free(decl.meta);
decl.zone = nil;
decl.meta = nil;
decl.nummeta = 0;
return a->ui;
}
static void
ui_tgroup(void *f, const char *label)
{
newui(f, label, UITGroup);
}
static void
ui_hgroup(void *f, const char *label)
{
newui(f, label, UIHGroup);
}
static void
ui_vgroup(void *f, const char *label)
{
newui(f, label, UIVGroup);
}
static void
ui_close_group(void *file)
{
File *f;
f = file;
uiglue.uiInterface = f->parent;
}
static UI *
ui_define(File *f, int type, const char *label, FAUSTFLOAT *zone)
{
UI *ui;
if (zone != decl.zone)
sysfatal("zone mismatch during definition");
ui = newui(f, label, type);
uiglue.uiInterface = f;
return ui;
}
static void
ui_button(void *f, const char *label, FAUSTFLOAT *zone)
{
ui_define(f, UIButton, label, zone);
}
static void
ui_checkbox(void *f, const char *label, FAUSTFLOAT *zone)
{
ui_define(f, UICheckBox, label, zone);
}
static void
ui_vslider(void *f, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT init, FAUSTFLOAT min, FAUSTFLOAT max, FAUSTFLOAT step)
{
UI *ui;
ui = ui_define(f, UIVSlider, label, zone);
ui->init = init;
ui->min = min;
ui->max = max;
ui->step = step;
}
static void
ui_hslider(void *f, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT init, FAUSTFLOAT min, FAUSTFLOAT max, FAUSTFLOAT step)
{
UI *ui;
ui = ui_define(f, UIHSlider, label, zone);
ui->init = init;
ui->min = min;
ui->max = max;
ui->step = step;
}
static void
ui_nentry(void *f, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT init, FAUSTFLOAT min, FAUSTFLOAT max, FAUSTFLOAT step)
{
UI *ui;
ui = ui_define(f, UINEntry, label, zone);
ui->init = init;
ui->min = min;
ui->max = max;
ui->step = step;
}
static void
ui_hbargraph(void *f, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT min, FAUSTFLOAT max)
{
UI *ui;
ui = ui_define(f, UIHBarGraph, label, zone);
ui->min = min;
ui->max = max;
}
static void
ui_vbargraph(void *f, const char *label, FAUSTFLOAT *zone, FAUSTFLOAT min, FAUSTFLOAT max)
{
UI *ui;
ui = ui_define(f, UIVBarGraph, label, zone);
ui->min = min;
ui->max = max;
}
static void
ui_declare(void *f, FAUSTFLOAT *zone, const char *key, const char *value)
{
USED(f);
if (decl.zone != nil && decl.zone != zone)
sysfatal("zone mismatch during declaration");
decl.zone = zone;
decl.meta = realloc(decl.meta, sizeof(Meta)*(decl.nummeta+1));
decl.meta[decl.nummeta].k = key;
decl.meta[decl.nummeta].v = value;
decl.nummeta++;
}
UIGlue uiglue = {
.openTabBox = ui_tgroup,
.openHorizontalBox = ui_hgroup,
.openVerticalBox = ui_vgroup,
.closeBox = ui_close_group,
.addButton = ui_button,
.addCheckButton = ui_checkbox,
.addVerticalSlider = ui_vslider,
.addHorizontalSlider = ui_hslider,
.addNumEntry = ui_nentry,
.addHorizontalBargraph = ui_hbargraph,
.addVerticalBargraph = ui_vbargraph,
.declare = ui_declare,
};