public static object Emit(GLib.Object o, string name, params object[] parameters)
{
SignalQuery query;
IntPtr type = gstsharp_g_type_from_instance(o.Handle);
GType gtype = new GType(type);
string signal_name, signal_detail;
uint signal_detail_quark = 0;
int colon;
colon = name.LastIndexOf("::");
if (colon == -1)
{
signal_name = name;
signal_detail = String.Empty;
}
else
{
signal_name = name.Substring(0, colon);
signal_detail = name.Substring(colon + 2);
}
GTypeSignalKey key = new GTypeSignalKey(gtype, signal_name);
if (SignalEmitInfo[key] == null)
{
IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup(signal_name);
uint signal_id = g_signal_lookup(native_string, type);
GLib.Marshaller.Free(native_string);
if (signal_id == 0)
{
throw new NotSupportedException(String.Format("{0} has no signal of name {1}", o, name));
}
GSignalQuery q = new GSignalQuery();
g_signal_query(signal_id, ref q);
if (q.signal_id == 0)
{
throw new NotSupportedException(String.Format("{0} couldn't be queried for signal with name {1}", o, name));
}
query = new SignalQuery();
query.signal_id = signal_id;
query.signal_name = GLib.Marshaller.Utf8PtrToString(q.signal_name);
query.itype = new GType(q.itype);
query.signal_flags = q.signal_flags;
query.return_type = new GType(q.return_type);
query.n_params = q.n_params;
query.param_types = new Type[q.n_params];
for (int i = 0; i < query.n_params; i++)
{
IntPtr t = Marshal.ReadIntPtr(q.param_types, i);
GType g = new GType(t);
query.param_types[i] = (Type)g;
}
SignalEmitInfo.Add(key, query);
}
query = (SignalQuery)SignalEmitInfo[key];
GLib.Value[] signal_parameters = new GLib.Value[query.n_params + 1];
signal_parameters[0] = new GLib.Value(o);
if (parameters.Length != query.n_params)
{
throw new ApplicationException(String.Format("Invalid number of parameters: expected {0}, got {1}", query.n_params, parameters.Length));
}
for (int i = 0; i < query.n_params; i++)
{
Type expected_type = (Type)query.param_types[i];
Type given_type = parameters[i].GetType();
if (expected_type != given_type && !given_type.IsSubclassOf(given_type))
{
throw new ApplicationException(String.Format("Invalid parameter type: expected {0}, got {1}", expected_type, given_type));
}
signal_parameters[i + 1] = new GLib.Value(parameters[i]);
}
GLib.Value return_value = new GLib.Value();
if (query.return_type != GType.Invalid && query.return_type != GType.None)
{
return_value.Init(query.return_type);
}
if (signal_detail != String.Empty)
{
IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup(signal_detail);
signal_detail_quark = g_quark_from_string(native_string);
GLib.Marshaller.Free(native_string);
}
g_signal_emitv(signal_parameters, query.signal_id, signal_detail_quark, ref return_value);
foreach (GLib.Value v in signal_parameters)
{
v.Dispose();
}
object ret = (query.return_type != GType.Invalid && query.return_type != GType.None) ? return_value.Val : null;
if (ret != null)
{
return_value.Dispose();
}
return(ret);
}
public static object Emit(GLib.Object o, string name, params object[] parameters)
{
SignalQuery query;
IntPtr type = gstsharp_g_type_from_instance (o.Handle);
GType gtype = new GType (type);
string signal_name, signal_detail;
uint signal_detail_quark = 0;
int colon;
colon = name.LastIndexOf ("::");
if (colon == -1) {
signal_name = name;
signal_detail = String.Empty;
} else {
signal_name = name.Substring (0, colon);
signal_detail = name.Substring (colon + 2);
}
GTypeSignalKey key = new GTypeSignalKey (gtype, signal_name);
if (SignalEmitInfo[key] == null) {
IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup (signal_name);
uint signal_id = g_signal_lookup (native_string, type);
GLib.Marshaller.Free (native_string);
if (signal_id == 0)
throw new NotSupportedException (String.Format ("{0} has no signal of name {1}", o, name));
GSignalQuery q = new GSignalQuery ();
g_signal_query (signal_id, ref q);
if (q.signal_id == 0)
throw new NotSupportedException (String.Format ("{0} couldn't be queried for signal with name {1}", o, name));
query = new SignalQuery ();
query.signal_id = signal_id;
query.signal_name = GLib.Marshaller.Utf8PtrToString (q.signal_name);
query.itype = new GType (q.itype);
query.signal_flags = q.signal_flags;
query.return_type = new GType (q.return_type);
query.n_params = q.n_params;
query.param_types = new Type[q.n_params];
for (int i = 0; i < query.n_params; i++) {
IntPtr t = Marshal.ReadIntPtr (q.param_types, i);
GType g = new GType (t);
query.param_types[i] = (Type) g;
}
SignalEmitInfo.Add (key, query);
}
query = (SignalQuery) SignalEmitInfo[key];
GLib.Value[] signal_parameters = new GLib.Value[query.n_params + 1];
signal_parameters[0] = new GLib.Value (o);
if (parameters.Length != query.n_params)
throw new ApplicationException (String.Format ("Invalid number of parameters: expected {0}, got {1}", query.n_params, parameters.Length));
for (int i = 0; i < query.n_params; i++) {
Type expected_type = (Type) query.param_types[i];
Type given_type = parameters[i].GetType ();
if (expected_type != given_type && ! given_type.IsSubclassOf (given_type))
throw new ApplicationException (String.Format ("Invalid parameter type: expected {0}, got {1}", expected_type, given_type));
signal_parameters[i + 1] = new GLib.Value (parameters[i]);
}
GLib.Value return_value = new GLib.Value ();
if (query.return_type != GType.Invalid && query.return_type != GType.None)
return_value.Init (query.return_type);
if (signal_detail != String.Empty) {
IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup (signal_detail);
signal_detail_quark = g_quark_from_string (native_string);
GLib.Marshaller.Free (native_string);
}
g_signal_emitv (signal_parameters, query.signal_id, signal_detail_quark, ref return_value);
foreach (GLib.Value v in signal_parameters)
v.Dispose ();
object ret = (query.return_type != GType.Invalid && query.return_type != GType.None) ? return_value.Val : null;
if (ret != null)
return_value.Dispose ();
return ret;
}
