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* atk/Object.custom: custom protected method for firing

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the ChildrenChanged signal.
* glib/Signal.cs: first implementation of a managed
method for emitting signals.

svn path=/trunk/gtk-sharp/; revision=101700
This commit is contained in:
Andrés G. Aragoneses 2008-04-24 17:11:11 +00:00
parent acc917f686
commit d0b8f4c279
3 changed files with 73 additions and 0 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2008-04-24 Andres G. Aragoneses <aaragoneses@novell.com>
* atk/Object.custom: custom protected method for firing
the ChildrenChanged signal.
* glib/Signal.cs: first implementation of a managed
method for emitting signals.
2008-04-19 Mike Kestner <mkestner@novell.com>
* gtk/glue/statusicon.c: fix time parameter usage. Not even sure

11
atk/Object.custom
View file

@ -92,3 +92,14 @@
return null;
}
protected void EmitChildrenChanged (ChildrenChangedDetail detail, uint child_index, Atk.Object child)
{
GLib.Signal.Emit (this, "children-changed", detail.ToString().ToLower(), child_index, child);
}
protected enum ChildrenChangedDetail
{
Add,
Remove
}

55
glib/Signal.cs
View file

@ -190,7 +190,49 @@ namespace GLib {
return event_handler_delegate;
}
}
public static object Emit (GLib.Object instance, string signal_name, string detail, params object[] args)
{
uint signal_id = GetSignalId (signal_name, instance);
uint gquark = GetGQuarkFromString (detail);
GLib.Value[] vals = new GLib.Value [args.Length + 1];
GLib.ValueArray inst_and_params = new GLib.ValueArray ((uint) args.Length + 1);
vals [0] = new GLib.Value (instance);
inst_and_params.Append (vals [0]);
for (int i = 1; i < vals.Length; i++) {
vals [i] = new GLib.Value (args [i - 1]);
inst_and_params.Append (vals [i]);
}
GLib.Value ret = GLib.Value.Empty;
g_signal_emitv (inst_and_params.ArrayPtr, signal_id, gquark, ref ret);
object ret_obj = ret.Val;
foreach (GLib.Value val in vals)
val.Dispose ();
ret.Dispose ();
return ret_obj;
}
private static uint GetGQuarkFromString (string str) {
IntPtr native_string = GLib.Marshaller.StringToPtrGStrdup (str);
uint ret = g_quark_from_string (native_string);
GLib.Marshaller.Free (native_string);
return ret;
}
private static uint GetSignalId (string signal_name, GLib.Object obj)
{
IntPtr typeid = gtksharp_get_type_id (obj.Handle);
IntPtr native_name = GLib.Marshaller.StringToPtrGStrdup (signal_name);
uint signal_id = g_signal_lookup (native_name, typeid);
GLib.Marshaller.Free (native_name);
return signal_id;
}
[DllImport("libgobject-2.0-0.dll")]
static extern uint g_signal_connect_data(IntPtr obj, IntPtr name, Delegate cb, IntPtr gc_handle, IntPtr dummy, int flags);
@ -202,6 +244,19 @@ namespace GLib {
[DllImport("libgobject-2.0-0.dll")]
static extern bool g_signal_handler_is_connected (IntPtr instance, uint handler);
[DllImport("libgobject-2.0-0.dll")]
static extern void g_signal_emitv (IntPtr instance_and_params, uint signal_id, uint gquark_detail, ref GLib.Value return_value);
[DllImport("libgobject-2.0-0.dll")]
static extern uint g_signal_lookup (IntPtr name, IntPtr itype);
//better not to expose g_quark_from_static_string () due to memory allocation issues
[DllImport("libglib-2.0-0.dll")]
static extern uint g_quark_from_string (IntPtr str);
[DllImport("glibsharpglue-2")]
static extern IntPtr gtksharp_get_type_id (IntPtr raw);
}
}