static void OnMarshal(IntPtr closure, ref GLib.Value retval, uint argc, IntPtr argsPtr,
IntPtr ihint, IntPtr data)
{
object [] args = new object[argc - 1];
object o = ((GLib.Value)Marshal.PtrToStructure(argsPtr, typeof(GLib.Value))).Val;
for (int i = 1; i < argc; i++)
{
IntPtr struct_ptr = (IntPtr)((long)argsPtr + (i * gvalue_struct_size));
GLib.Value argument = (GLib.Value)Marshal.PtrToStructure(struct_ptr, typeof(GLib.Value));
args[i - 1] = argument.Val;
}
if (data == IntPtr.Zero)
{
Console.Error.WriteLine("No available data");
return;
}
ObjectSignalKey k = (ObjectSignalKey)((GCHandle)data).Target;
if (k != null)
{
SignalInfo si = (SignalInfo)SignalHandlers[k];
GLib.SignalArgs arg = (GLib.SignalArgs)Activator.CreateInstance(si.ArgsType);
arg.Args = args;
si.RegisteredHandler.DynamicInvoke(new object[] { o, arg });
if (arg.RetVal != null)
{
retval.Val = arg.RetVal;
}
}
}
public static void Connect(GLib.Object o, string name,
bool after, Delegate handler)
{
Delegate newHandler;
ObjectSignalKey k = new ObjectSignalKey (o, name);
if (!SignalInfo.IsValidDelegate (handler))
throw new Exception ("Invalid delegate");
if (SignalHandlers[k] != null) {
SignalInfo si = (SignalInfo) SignalHandlers[k];
if (!si.IsCompatibleDelegate (handler))
throw new Exception ("Incompatible delegate");
newHandler = Delegate.Combine (si.RegisteredHandler, handler);
si.UpdateArgsType (handler);
si.RegisteredHandler = newHandler;
} else {
if (!SignalInfo.IsValidDelegate (handler))
throw new Exception ("Invalid delegate");
IntPtr closure = g_closure_new_simple (g_closure_sizeof, IntPtr.Zero);
g_closure_set_meta_marshal (closure, (IntPtr) GCHandle.Alloc (k), marshalHandler);
uint signalId = g_signal_connect_closure (o.Handle, name, closure, after);
SignalHandlers.Add (k, new SignalInfo (signalId, closure, handler));
}
}
public override bool Equals(object o)
{
if (o is ObjectSignalKey)
{
ObjectSignalKey k = (ObjectSignalKey)o;
return(k.o.Equals(this.o) && signal_name.Equals(k.signal_name));
}
return(base.Equals(o));
}
public static void Disconnect(GLib.Object o, string name, Delegate handler)
{
ObjectSignalKey k = new ObjectSignalKey(o, name);
if (SignalHandlers[k] != null)
{
SignalInfo si = (SignalInfo)SignalHandlers[k];
Delegate newHandler = Delegate.Remove(si.RegisteredHandler, handler);
if (newHandler == null || handler == null)
{
g_signal_handler_disconnect(o.Handle, si.HandlerId);
SignalHandlers.Remove(k);
}
else
{
si.RegisteredHandler = newHandler;
}
}
}
public static void Connect(GLib.Object o, string name,
bool after, Delegate handler)
{
Delegate newHandler;
ObjectSignalKey k = new ObjectSignalKey(o, name);
if (!SignalInfo.IsValidDelegate(handler))
{
throw new Exception("Invalid delegate");
}
if (SignalHandlers [k] != null)
{
SignalInfo si = (SignalInfo)SignalHandlers [k];
if (!si.IsCompatibleDelegate(handler))
{
throw new Exception("Incompatible delegate");
}
newHandler = Delegate.Combine(si.RegisteredHandler, handler);
si.UpdateArgsType(handler);
si.RegisteredHandler = newHandler;
}
else
{
if (!SignalInfo.IsValidDelegate(handler))
{
throw new Exception("Invalid delegate");
}
// Let's allocate 64bytes for the GClosure, it should be more than necessary.
IntPtr closure = g_closure_new_simple(64, IntPtr.Zero);
GCHandle gch = GCHandle.Alloc(k);
g_closure_set_meta_marshal(closure, (IntPtr)gch, marshalHandler);
uint signalId = g_signal_connect_closure(o.Handle, name, closure, after);
SignalHandlers.Add(k, new SignalInfo(signalId, closure, handler, gch));
}
}
public static void Disconnect(GLib.Object o, string name, Delegate handler)
{
ObjectSignalKey k = new ObjectSignalKey (o, name);
if (SignalHandlers[k] != null) {
SignalInfo si = (SignalInfo) SignalHandlers[k];
Delegate newHandler = Delegate.Remove (si.RegisteredHandler, handler);
if (newHandler == null || handler == null) {
g_signal_handler_disconnect (o.Handle, si.HandlerId);
SignalHandlers.Remove (k);
} else {
si.RegisteredHandler = newHandler;
}
}
}
