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9ea7669e86
Using variables cannot be modified in .NET but can be in mono so switch to a good old Dispose call here. https://bugzilla.xamarin.com/show_bug.cgi?id=15832#c0
93 lines
No EOL
2.9 KiB
C#
93 lines
No EOL
2.9 KiB
C#
// Copyright (C) 2013 Stephan Sundermann <stephansundermann@gmail.com>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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namespace Gst {
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public class PropertyNotFoundException : Exception {}
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partial class Object
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{
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private Dictionary <string, bool> PropertyNameCache = new Dictionary<string, bool> ();
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[DllImport ("libgobject-2.0-0.dll", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr g_object_class_find_property (IntPtr klass, IntPtr name);
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bool PropertyExists (string name) {
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if (PropertyNameCache.ContainsKey (name))
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return PropertyNameCache [name];
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var ptr = g_object_class_find_property (Marshal.ReadIntPtr (Handle), GLib.Marshaller.StringToPtrGStrdup (name));
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var result = ptr != IntPtr.Zero;
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// just cache the positive results because there might
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// actually be new properties getting installed
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if (result)
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PropertyNameCache [name] = result;
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return result;
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}
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public object this[string property] {
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get {
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if (PropertyExists (property)) {
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using (GLib.Value v = GetProperty (property)) {
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return v.Val;
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}
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} else
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throw new PropertyNotFoundException ();
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} set {
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if (PropertyExists (property)) {
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if (value == null) {
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throw new ArgumentNullException ();
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}
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var type = value.GetType ();
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var gtype = (GLib.GType)type;
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if (gtype == null) {
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throw new Exception ("Could not find a GType for type " + type.FullName);
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}
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GLib.Value v = new GLib.Value ((GLib.GType)value.GetType ());
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v.Val = value;
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SetProperty (property, v);
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v.Dispose ();
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} else
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throw new PropertyNotFoundException ();
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}
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}
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public void Connect (string signal, SignalHandler handler) {
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DynamicSignal.Connect (this, signal, handler);
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}
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public void Disconnect (string signal, SignalHandler handler) {
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DynamicSignal.Disconnect (this, signal, handler);
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}
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public void Connect (string signal, Delegate handler) {
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DynamicSignal.Connect (this, signal, handler);
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}
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public void Disconnect (string signal, Delegate handler) {
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DynamicSignal.Disconnect (this, signal, handler);
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}
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public object Emit (string signal, params object[] parameters) {
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return DynamicSignal.Emit (this, signal, parameters);
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}
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}
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} |