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Viewing changes to external/xwt/Xwt/Xwt.Backends/TransferDataStore.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/xwt/Xwt/Xwt.Backends/TransferDataStore.cs
 
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// 
 
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// TransferDataStore.cs
 
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//  
 
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// Author:
 
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//       Lluis Sanchez <lluis@xamarin.com>
 
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// 
 
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// Copyright (c) 2012 Xamarin Inc
 
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// 
 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
 
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// of this software and associated documentation files (the "Software"), to deal
 
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// in the Software without restriction, including without limitation the rights
 
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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// copies of the Software, and to permit persons to whom the Software is
 
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// furnished to do so, subject to the following conditions:
 
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// 
 
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// The above copyright notice and this permission notice shall be included in
 
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// all copies or substantial portions of the Software.
 
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// 
 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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// THE SOFTWARE.
 
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using System;
 
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using System.Collections.Generic;
 
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using System.Linq;
 
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using System.IO;
 
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using System.Runtime.Serialization.Formatters.Binary;
 
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using Xwt.Drawing;
 
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using Xwt.Backends;
 
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using Xwt.Engine;
 
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namespace Xwt.Backends
 
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{
 
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        /// <summary>
 
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        /// A collection of data that has been transferred through drag & drop or the clipboard
 
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        /// </summary>
 
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        public class TransferDataStore: ITransferData
 
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        {
 
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                Dictionary<TransferDataType,object> data = new Dictionary<TransferDataType,object> ();
 
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                public void AddText (string text)
 
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                {
 
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                        data [TransferDataType.Text] = text;
 
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                }
 
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                public void AddImage (Xwt.Drawing.Image image)
 
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                {
 
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                        data [TransferDataType.Image] = image;
 
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                }
 
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                public void AddUris (Uri[] uris)
 
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                {
 
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                        data [TransferDataType.Uri] = uris;
 
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                }
 
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                public void AddValue (TransferDataType type, byte[] value)
 
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                {
 
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                        Type t = Type.GetType (type.Id);
 
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                        if (t != null)
 
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                                data [type] = TransferDataSource.DeserializeValue (value);
 
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                        else
 
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                                data [type] = value;
 
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                }
 
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                public void AddValue (TransferDataType type, object value)
 
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                {
 
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                        data[type] = value;
 
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                }
 
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                object GetValue (TransferDataType type)
 
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                {
 
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                        object val;
 
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                        if (data.TryGetValue (type, out val)) {
 
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                                if (val != null)
 
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                                        return val;
 
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                        }
 
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                        return null;
 
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                }
 
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                object ITransferData.GetValue (TransferDataType type)
 
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                {
 
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                        return GetValue (type);
 
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                }
 
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                T ITransferData.GetValue<T> ()
 
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                {
 
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                        object ob = GetValue (TransferDataType.FromType (typeof(T)));
 
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                        if (ob == null || ob.GetType () == typeof(Type))
 
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                                return (T) ob;
 
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                        if (ob is byte[]) {
 
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                                T val = (T) TransferDataSource.DeserializeValue ((byte[])ob);
 
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                                data[TransferDataType.FromType (typeof(T))] = val;
 
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                                return val;
 
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                        }
 
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                        return (T) ob;
 
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                }
 
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                bool ITransferData.HasType (TransferDataType type)
 
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                {
 
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                        return data.ContainsKey (type);
 
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                }
 
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                string ITransferData.Text {
 
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                        get {
 
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                                return (string) GetValue (TransferDataType.Text);
 
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                        }
 
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                }
 
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                Uri[] ITransferData.Uris {
 
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                        get {
 
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                                var u = (Uri[]) GetValue (TransferDataType.Uri);
 
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                                return u ?? new Uri [0];
 
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                        }
 
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                }
 
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                Xwt.Drawing.Image ITransferData.Image {
 
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                        get {
 
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                                return (Xwt.Drawing.Image) GetValue (TransferDataType.Image);
 
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                        }
 
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                }
 
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        }
 
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}