gstreamer/sources/custom/Caps.cs

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2013-10-11 15:48:15 +00:00
// Iterator.cs - Custom caps wrapper for IEnumerable
//
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// Authors:
// Sebastian Dröge <slomo@circular-chaos.org>
// Stephan Sundermann <stephansundermann@gmail.com>
//
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// Copyright (c) 2013 Stephan Sundermann
// Copyright (c) 2009 Sebastian Dröge
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the Lesser GNU General
// Public License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
namespace Gst {
using System;
using System.Collections;
using System.Runtime.InteropServices;
partial class Caps : IEnumerable
{
public Structure this [uint index] {
get {
if (index >= Size)
throw new ArgumentOutOfRangeException ();
Structure structure = GetStructure ((uint) index);
return structure;
}
}
private class StructureEnumerator : IEnumerator {
Gst.Caps caps;
long index;
public StructureEnumerator (Gst.Caps caps) {
this.caps = caps;
index = -1;
}
public object Current {
get {
if (index >= caps.Size)
throw new ArgumentOutOfRangeException ();
if (index == -1)
throw new ArgumentException ();
return caps[ (uint) index];
}
}
public bool MoveNext () {
index += 1;
return (index < caps.Size);
}
public void Reset () {
index = -1;
}
}
public IEnumerator GetEnumerator() {
return new StructureEnumerator (this);
}
}
}