static GParamSpec *
copy_param_spec(GParamSpec *in, const gchar *name) {
const gchar * blurb = g_param_spec_get_blurb(in);
GParamSpec *out = NULL;
GParamFlags flags = G_PARAM_READWRITE;
// TODO: handle more things
if (G_IS_PARAM_SPEC_FLOAT(in)) {
GParamSpecFloat *f = G_PARAM_SPEC_FLOAT(in);
out = g_param_spec_double(name, name, blurb, f->minimum, f->maximum, f->default_value, flags);
} else if (G_IS_PARAM_SPEC_DOUBLE(in)) {
GParamSpecDouble *d = G_PARAM_SPEC_DOUBLE(in);
out = g_param_spec_double(name, name, blurb, d->minimum, d->maximum, d->default_value, flags);
} else if (G_IS_PARAM_SPEC_INT(in)) {
GParamSpecInt *i = G_PARAM_SPEC_INT(in);
out = g_param_spec_int(name, name, blurb, i->minimum, i->maximum, i->default_value, flags);
} else if (G_IS_PARAM_SPEC_UINT(in)) {
GParamSpecUInt *u = G_PARAM_SPEC_UINT(in);
out = g_param_spec_int(name, name, blurb, u->minimum, u->maximum, u->default_value, flags);
} else if (G_IS_PARAM_SPEC_LONG(in)) {
GParamSpecLong *l = G_PARAM_SPEC_LONG(in);
out = g_param_spec_int(name, name, blurb, l->minimum, l->maximum, l->default_value, flags);
} else if (GEGL_IS_PARAM_SPEC_COLOR(in)) {
GeglColor *default_value = gegl_param_spec_color_get_default(in);
out = gegl_param_spec_color(name, name, blurb, default_value, flags);
} else {
g_critical("json: Unknown param spec type for property %s", g_param_spec_get_nick(in));
}
return out;
}
gboolean
stetic_param_spec_get_default (GParamSpec *pspec, GValue *value)
{
g_value_init (value, pspec->value_type);
if (G_IS_PARAM_SPEC_CHAR (pspec))
g_value_set_char (value, G_PARAM_SPEC_CHAR (pspec)->default_value);
else if (G_IS_PARAM_SPEC_UCHAR (pspec))
g_value_set_uchar (value, G_PARAM_SPEC_UCHAR (pspec)->default_value);
else if (G_IS_PARAM_SPEC_INT (pspec))
g_value_set_int (value, G_PARAM_SPEC_INT (pspec)->default_value);
else if (G_IS_PARAM_SPEC_UINT (pspec))
g_value_set_uint (value, G_PARAM_SPEC_UINT (pspec)->default_value);
else if (G_IS_PARAM_SPEC_LONG (pspec))
g_value_set_long (value, G_PARAM_SPEC_LONG (pspec)->default_value);
else if (G_IS_PARAM_SPEC_ULONG (pspec))
g_value_set_ulong (value, G_PARAM_SPEC_ULONG (pspec)->default_value);
else if (G_IS_PARAM_SPEC_INT64 (pspec))
g_value_set_int64 (value, G_PARAM_SPEC_INT64 (pspec)->default_value);
else if (G_IS_PARAM_SPEC_UINT64 (pspec))
g_value_set_uint64 (value, G_PARAM_SPEC_UINT64 (pspec)->default_value);
else if (G_IS_PARAM_SPEC_FLOAT (pspec))
g_value_set_float (value, G_PARAM_SPEC_FLOAT (pspec)->default_value);
else if (G_IS_PARAM_SPEC_DOUBLE (pspec))
g_value_set_double (value, G_PARAM_SPEC_DOUBLE (pspec)->default_value);
else if (G_IS_PARAM_SPEC_BOOLEAN (pspec))
g_value_set_boolean (value, G_PARAM_SPEC_BOOLEAN (pspec)->default_value);
else if (G_IS_PARAM_SPEC_UNICHAR (pspec))
g_value_set_uint (value, G_PARAM_SPEC_UNICHAR (pspec)->default_value);
else if (G_IS_PARAM_SPEC_STRING (pspec))
g_value_set_static_string (value, G_PARAM_SPEC_STRING (pspec)->default_value);
else
return FALSE;
return TRUE;
}
gboolean
stetic_param_spec_get_maximum (GParamSpec *pspec, GValue *value)
{
g_value_init (value, pspec->value_type);
if (G_IS_PARAM_SPEC_CHAR (pspec))
g_value_set_char (value, G_PARAM_SPEC_CHAR (pspec)->maximum);
else if (G_IS_PARAM_SPEC_UCHAR (pspec))
g_value_set_uchar (value, G_PARAM_SPEC_UCHAR (pspec)->maximum);
else if (G_IS_PARAM_SPEC_INT (pspec))
g_value_set_int (value, G_PARAM_SPEC_INT (pspec)->maximum);
else if (G_IS_PARAM_SPEC_UINT (pspec))
g_value_set_uint (value, G_PARAM_SPEC_UINT (pspec)->maximum);
else if (G_IS_PARAM_SPEC_LONG (pspec))
g_value_set_long (value, G_PARAM_SPEC_LONG (pspec)->maximum);
else if (G_IS_PARAM_SPEC_ULONG (pspec))
g_value_set_ulong (value, G_PARAM_SPEC_ULONG (pspec)->maximum);
else if (G_IS_PARAM_SPEC_INT64 (pspec))
g_value_set_int64 (value, G_PARAM_SPEC_INT64 (pspec)->maximum);
else if (G_IS_PARAM_SPEC_UINT64 (pspec))
g_value_set_uint64 (value, G_PARAM_SPEC_UINT64 (pspec)->maximum);
else if (G_IS_PARAM_SPEC_FLOAT (pspec))
g_value_set_float (value, G_PARAM_SPEC_FLOAT (pspec)->maximum);
else if (G_IS_PARAM_SPEC_DOUBLE (pspec))
g_value_set_double (value, G_PARAM_SPEC_DOUBLE (pspec)->maximum);
else
return FALSE;
return TRUE;
}
/* XXX Historical note, originally I tried (ab)using override properties
* in ESourceCamel, which redirected to the equivalent CamelSettings
* property. Seemed to work at first, and I was proud of my clever
* hack, but it turns out g_object_class_list_properties() excludes
* override properties. So the ESourceCamel properties were being
* skipped in source_load_from_key_file() (e-source.c). */
static GParamSpec *
param_spec_clone (GParamSpec *pspec)
{
GParamSpec *clone;
GParamFlags flags;
const gchar *name, *nick, *blurb;
name = g_param_spec_get_name (pspec);
nick = g_param_spec_get_nick (pspec);
blurb = g_param_spec_get_blurb (pspec);
flags = (pspec->flags & ~(G_PARAM_STATIC_STRINGS));
if (G_IS_PARAM_SPEC_BOOLEAN (pspec)) {
GParamSpecBoolean *pspec_boolean = G_PARAM_SPEC_BOOLEAN (pspec);
clone = g_param_spec_boolean (name, nick, blurb,
pspec_boolean->default_value,
flags);
} else if (G_IS_PARAM_SPEC_CHAR (pspec)) {
GParamSpecChar *pspec_char = G_PARAM_SPEC_CHAR (pspec);
clone = g_param_spec_char (name, nick, blurb,
pspec_char->minimum,
pspec_char->maximum,
pspec_char->default_value,
flags);
} else if (G_IS_PARAM_SPEC_UCHAR (pspec)) {
GParamSpecUChar *pspec_uchar = G_PARAM_SPEC_UCHAR (pspec);
clone = g_param_spec_uchar (name, nick, blurb,
pspec_uchar->minimum,
pspec_uchar->maximum,
pspec_uchar->default_value,
flags);
} else if (G_IS_PARAM_SPEC_INT (pspec)) {
GParamSpecInt *pspec_int = G_PARAM_SPEC_INT (pspec);
clone = g_param_spec_int (name, nick, blurb,
pspec_int->minimum,
pspec_int->maximum,
pspec_int->default_value,
flags);
} else if (G_IS_PARAM_SPEC_UINT (pspec)) {
GParamSpecUInt *pspec_uint = G_PARAM_SPEC_UINT (pspec);
clone = g_param_spec_uint (name, nick, blurb,
pspec_uint->minimum,
pspec_uint->maximum,
pspec_uint->default_value,
flags);
} else if (G_IS_PARAM_SPEC_LONG (pspec)) {
GParamSpecLong *pspec_long = G_PARAM_SPEC_LONG (pspec);
clone = g_param_spec_long (name, nick, blurb,
pspec_long->minimum,
pspec_long->maximum,
pspec_long->default_value,
flags);
} else if (G_IS_PARAM_SPEC_ULONG (pspec)) {
GParamSpecULong *pspec_ulong = G_PARAM_SPEC_ULONG (pspec);
clone = g_param_spec_ulong (name, nick, blurb,
pspec_ulong->minimum,
pspec_ulong->maximum,
pspec_ulong->default_value,
flags);
} else if (G_IS_PARAM_SPEC_INT64 (pspec)) {
GParamSpecInt64 *pspec_int64 = G_PARAM_SPEC_INT64 (pspec);
clone = g_param_spec_int64 (name, nick, blurb,
pspec_int64->minimum,
pspec_int64->maximum,
pspec_int64->default_value,
flags);
} else if (G_IS_PARAM_SPEC_UINT64 (pspec)) {
GParamSpecUInt64 *pspec_uint64 = G_PARAM_SPEC_UINT64 (pspec);
clone = g_param_spec_uint64 (name, nick, blurb,
pspec_uint64->minimum,
pspec_uint64->maximum,
pspec_uint64->default_value,
flags);
} else if (G_IS_PARAM_SPEC_FLOAT (pspec)) {
GParamSpecFloat *pspec_float = G_PARAM_SPEC_FLOAT (pspec);
clone = g_param_spec_float (name, nick, blurb,
pspec_float->minimum,
pspec_float->maximum,
pspec_float->default_value,
flags);
} else if (G_IS_PARAM_SPEC_DOUBLE (pspec)) {
GParamSpecDouble *pspec_double = G_PARAM_SPEC_DOUBLE (pspec);
clone = g_param_spec_double (name, nick, blurb,
pspec_double->minimum,
pspec_double->maximum,
pspec_double->default_value,
flags);
} else if (G_IS_PARAM_SPEC_ENUM (pspec)) {
GParamSpecEnum *pspec_enum = G_PARAM_SPEC_ENUM (pspec);
clone = g_param_spec_enum (name, nick, blurb,
pspec->value_type,
pspec_enum->default_value,
flags);
} else if (G_IS_PARAM_SPEC_FLAGS (pspec)) {
GParamSpecFlags *pspec_flags = G_PARAM_SPEC_FLAGS (pspec);
clone = g_param_spec_flags (name, nick, blurb,
pspec->value_type,
pspec_flags->default_value,
flags);
} else if (G_IS_PARAM_SPEC_STRING (pspec)) {
GParamSpecString *pspec_string = G_PARAM_SPEC_STRING (pspec);
clone = g_param_spec_string (name, nick, blurb,
pspec_string->default_value,
flags);
} else if (G_IS_PARAM_SPEC_PARAM (pspec)) {
clone = g_param_spec_param (name, nick, blurb,
pspec->value_type,
flags);
} else if (G_IS_PARAM_SPEC_BOXED (pspec)) {
clone = g_param_spec_boxed (name, nick, blurb,
pspec->value_type,
flags);
} else if (G_IS_PARAM_SPEC_POINTER (pspec)) {
clone = g_param_spec_pointer (name, nick, blurb, flags);
} else if (G_IS_PARAM_SPEC_OBJECT (pspec)) {
clone = g_param_spec_object (name, nick, blurb,
pspec->value_type,
flags);
} else if (G_IS_PARAM_SPEC_UNICHAR (pspec)) {
GParamSpecUnichar *pspec_unichar = G_PARAM_SPEC_UNICHAR (pspec);
clone = g_param_spec_unichar (name, nick, blurb,
pspec_unichar->default_value,
flags);
} else if (G_IS_PARAM_SPEC_GTYPE (pspec)) {
GParamSpecGType *pspec_gtype = G_PARAM_SPEC_GTYPE (pspec);
clone = g_param_spec_gtype (name, nick, blurb,
pspec_gtype->is_a_type,
flags);
} else if (G_IS_PARAM_SPEC_VARIANT (pspec)) {
GParamSpecVariant *pspec_variant = G_PARAM_SPEC_VARIANT (pspec);
clone = g_param_spec_variant (name, nick, blurb,
pspec_variant->type,
pspec_variant->default_value,
flags);
} else {
g_warn_if_reached ();
}
return clone;
}
/* --- test functions --- */
static void
pspec_select_value (GParamSpec *pspec,
GValue *value,
double dvalue)
{
/* generate a value suitable for pspec */
if (G_IS_PARAM_SPEC_CHAR (pspec))
ASSIGN_VALUE (g_value_set_char, value, GParamSpecChar*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_UCHAR (pspec))
ASSIGN_VALUE (g_value_set_uchar, value, GParamSpecUChar*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_INT (pspec))
ASSIGN_VALUE (g_value_set_int, value, GParamSpecInt*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_UINT (pspec))
ASSIGN_VALUE (g_value_set_uint, value, GParamSpecUInt*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_LONG (pspec))
ASSIGN_VALUE (g_value_set_long, value, GParamSpecLong*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_ULONG (pspec))
ASSIGN_VALUE (g_value_set_ulong, value, GParamSpecULong*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_INT64 (pspec))
ASSIGN_VALUE (g_value_set_int64, value, GParamSpecInt64*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_UINT64 (pspec))
ASSIGN_VALUE (g_value_set_uint64, value, GParamSpecUInt64*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_FLOAT (pspec))
ASSIGN_VALUE (g_value_set_float, value, GParamSpecFloat*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_DOUBLE (pspec))
ASSIGN_VALUE (g_value_set_double, value, GParamSpecDouble*, pspec, default_value, minimum, maximum, dvalue);
else if (G_IS_PARAM_SPEC_BOOLEAN (pspec))
g_value_set_boolean (value, SELECT_VALUE (dvalue, ((GParamSpecBoolean*) pspec)->default_value, FALSE, TRUE));
else if (G_IS_PARAM_SPEC_UNICHAR (pspec))
g_value_set_uint (value, SELECT_VALUE (dvalue, ((GParamSpecUnichar*) pspec)->default_value, FALSE, TRUE));
else if (G_IS_PARAM_SPEC_GTYPE (pspec))
g_value_set_gtype (value, SELECT_VALUE ((int) dvalue, ((GParamSpecGType*) pspec)->is_a_type, 0, GTK_TYPE_WIDGET));
else if (G_IS_PARAM_SPEC_STRING (pspec))
{
GParamSpecString *sspec = (GParamSpecString*) pspec;
if (dvalue >= +2)
g_value_set_string (value, sspec->default_value);
if (dvalue > 0 && sspec->cset_first && sspec->cset_nth)
g_value_take_string (value, g_strdup_printf ("%c%c", sspec->cset_first[0], sspec->cset_nth[0]));
else /* if (sspec->ensure_non_null) */
g_value_set_string (value, "");
}
else if (G_IS_PARAM_SPEC_ENUM (pspec))
{
GParamSpecEnum *espec = (GParamSpecEnum*) pspec;
if (dvalue >= +2)
g_value_set_enum (value, espec->default_value);
if (dvalue >= 0 && dvalue <= 1)
g_value_set_enum (value, espec->enum_class->values[(int) ((espec->enum_class->n_values - 1) * dvalue)].value);
else if (dvalue <= -1)
g_value_set_enum (value, espec->enum_class->values[g_test_rand_int_range (0, espec->enum_class->n_values)].value);
}
else if (G_IS_PARAM_SPEC_FLAGS (pspec))
{
GParamSpecFlags *fspec = (GParamSpecFlags*) pspec;
if (dvalue >= +2)
g_value_set_flags (value, fspec->default_value);
if (dvalue >= 0 && dvalue <= 1)
g_value_set_flags (value, fspec->flags_class->values[(int) ((fspec->flags_class->n_values - 1) * dvalue)].value);
else if (dvalue <= -1)
g_value_set_flags (value, fspec->flags_class->values[g_test_rand_int_range (0, fspec->flags_class->n_values)].value);
}
/* unimplemented:
* G_IS_PARAM_SPEC_PARAM
* G_IS_PARAM_SPEC_BOXED
* G_IS_PARAM_SPEC_POINTER
* G_IS_PARAM_SPEC_VALUE_ARRAY
* G_IS_PARAM_SPEC_OBJECT
*/
}
/**
* gwy_adjustment_new_for_property:
* @object: (transfer none):
* An object.
* @propname: Name of property to create adjustment for. The property must be
* of integral or double type.
*
* Creates a new adjustment with ranges, default and current value given by
* the property of an object.
*
* Changes to the property value are reflected by changes in the adjustment
* value and vice versa. The adjustment does not take a reference to @object.
* If @object ceases to exist before the adjustment does the adjustment will
* remain configured the same way, just the value will not be synchronised with
* anything.
*
* You can limit the adjustment range further than what is permitted by the
* property after the construction. Extending it is not allowed.
*
* Returns: A newly created adjustment.
**/
GwyAdjustment*
gwy_adjustment_new_for_property(GObject *object,
const gchar *propname)
{
GwyAdjustment *adj = gwy_adjustment_new();
g_return_val_if_fail(G_IS_OBJECT(object), adj);
Adjustment *priv = adj->priv;
g_return_val_if_fail(propname, adj);
GObjectClass *klass = G_OBJECT_GET_CLASS(object);
GParamSpec *property = g_object_class_find_property(klass, propname);
g_return_val_if_fail(property, adj);
gdouble lower, upper, defaultval;
gboolean is_integral = TRUE;
// Try the types by descending probability.
if (G_IS_PARAM_SPEC_DOUBLE(property)) {
GParamSpecDouble *pspec = G_PARAM_SPEC_DOUBLE(property);
lower = pspec->minimum;
upper = pspec->maximum;
defaultval = pspec->default_value;
is_integral = FALSE;
}
else if (G_IS_PARAM_SPEC_UINT(property)) {
GParamSpecUInt *pspec = G_PARAM_SPEC_UINT(property);
lower = pspec->minimum;
upper = pspec->maximum;
defaultval = pspec->default_value;
}
else if (G_IS_PARAM_SPEC_INT(property)) {
GParamSpecInt *pspec = G_PARAM_SPEC_INT(property);
lower = pspec->minimum;
upper = pspec->maximum;
defaultval = pspec->default_value;
}
else if (G_IS_PARAM_SPEC_LONG(property)) {
GParamSpecLong *pspec = G_PARAM_SPEC_LONG(property);
lower = pspec->minimum;
upper = pspec->maximum;
defaultval = pspec->default_value;
}
else if (G_IS_PARAM_SPEC_ULONG(property)) {
GParamSpecULong *pspec = G_PARAM_SPEC_ULONG(property);
lower = pspec->minimum;
upper = pspec->maximum;
defaultval = pspec->default_value;
}
else if (G_IS_PARAM_SPEC_FLOAT(property)) {
GParamSpecFloat *pspec = G_PARAM_SPEC_FLOAT(property);
lower = pspec->minimum;
upper = pspec->maximum;
defaultval = pspec->default_value;
is_integral = FALSE;
}
else {
g_critical("Cannot create adjustment for value type %s.",
g_type_name(property->value_type));
return adj;
}
// Construct a harmless value for the gtk_adjustment_configure() call.
gdouble step_increment, page_increment, value;
// XXX: This needs more elaboration.
if (is_integral) {
value = gwy_round(0.5*(lower + upper));
step_increment = 1.0;
page_increment = MIN(upper - lower, 10.0);
}
else {
value = 0.5*(lower + upper);
step_increment = MAX((upper - lower)/100000.0, fabs(lower));
step_increment = gwy_powi(10.0, gwy_round(log10(step_increment)));
page_increment = sqrt(step_increment*(upper - lower));
page_increment = gwy_powi(10.0, gwy_round(log10(page_increment)));
}
gtk_adjustment_configure(GTK_ADJUSTMENT(adj),
value, lower, upper,
step_increment, page_increment, 0.0);
priv->defaultval = defaultval;
// This takes care of value synchronisation from the property to us.
priv->binding = g_object_bind_property(object, propname,
adj, "value",
G_BINDING_BIDIRECTIONAL
| G_BINDING_SYNC_CREATE);
g_object_add_weak_pointer(G_OBJECT(priv->binding),
(gpointer*)&priv->binding);
return adj;
}