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//
// ExtensionMethods.cs
//
// Author:
// Lluis Sanchez <lluis@xamarin.com>
//
// Copyright (c) 2013 Xamarin Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using Xwt.Drawing;
namespace Xwt.Backends
{
public static class ExtensionMethods
{
public static object GetBackend (this XwtComponent obj)
{
if (obj != null)
return ((IFrontend)obj).Backend;
else
return null;
}
public static IWidgetBackend GetBackend (this Widget obj)
{
if (obj != null)
return (IWidgetBackend)((IFrontend)obj).Backend;
else
return null;
}
public static object GetBackend (this XwtObject obj)
{
if (obj != null)
return ((IFrontend)obj).Backend;
else
return null;
}
public static ImageDescription ToImageDescription (this Image img)
{
return img != null ? img.ImageDescription : ImageDescription.Null;
}
public static double GetValue (this WidgetPlacement al)
{
switch (al) {
case WidgetPlacement.Center:
return 0.5;
case WidgetPlacement.End:
return 1;
default:
return 0;
}
}
public static Widget GetInternalParent (this Widget widget)
{
return widget.InternalParent;
}
}
}
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