src/Tizen.NUI/src/internal/Image.cs

   1 /** Copyright (c) 2017 Samsung Electronics Co., Ltd.
   2 *
   3 * Licensed under the Apache License, Version 2.0 (the "License");
   4 * you may not use this file except in compliance with the License.
   5 * You may obtain a copy of the License at
   6 *
   7 * http://www.apache.org/licenses/LICENSE-2.0
   8 *
   9 * Unless required by applicable law or agreed to in writing, software
  10 * distributed under the License is distributed on an "AS IS" BASIS,
  11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 * See the License for the specific language governing permissions and
  13 * limitations under the License.
  14 *
  15 */
  16
  17 namespace Tizen.NUI
  18 {
  19
  20     using System;
  21     using System.Runtime.InteropServices;
  22
  23
  24     internal class Image : BaseHandle
  25     {
  26         private global::System.Runtime.InteropServices.HandleRef swigCPtr;
  27
  28         internal Image(global::System.IntPtr cPtr, bool cMemoryOwn) : base(NDalicPINVOKE.Image_SWIGUpcast(cPtr), cMemoryOwn)
  29         {
  30             swigCPtr = new global::System.Runtime.InteropServices.HandleRef(this, cPtr);
  31         }
  32
  33         internal static global::System.Runtime.InteropServices.HandleRef getCPtr(Image obj)
  34         {
  35             return (obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr;
  36         }
  37
  38         protected override void Dispose(DisposeTypes type)
  39         {
  40             if (disposed)
  41             {
  42                 return;
  43             }
  44
  45             if (type == DisposeTypes.Explicit)
  46             {
  47                 //Called by User
  48                 //Release your own managed resources here.
  49                 //You should release all of your own disposable objects here.
  50
  51             }
  52
  53             //Release your own unmanaged resources here.
  54             //You should not access any managed member here except static instance.
  55             //because the execution order of Finalizes is non-deterministic.
  56
  57             if (swigCPtr.Handle != global::System.IntPtr.Zero)
  58             {
  59                 if (swigCMemOwn)
  60                 {
  61                     swigCMemOwn = false;
  62
  63                     //Unreference this instance from Registry.
  64                     Registry.Unregister(this);
  65
  66                     NDalicPINVOKE.delete_Image(swigCPtr);
  67                 }
  68                 swigCPtr = new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero);
  69             }
  70
  71             base.Dispose(type);
  72         }
  73
  74
  75
  76         /**
  77           * @brief Event arguments that passed via Uploaded signal
  78           *
  79           */
  80         public class UploadedEventArgs : EventArgs
  81         {
  82             private Image _image;
  83             /**
  84               * @brief Image - is the image data that gets uploaded to GL.
  85               *
  86               */
  87             public Image Image
  88             {
  89                 get
  90                 {
  91                     return _image;
  92                 }
  93                 set
  94                 {
  95                     _image = value;
  96                 }
  97             }
  98         }
  99
 100         [UnmanagedFunctionPointer(CallingConvention.StdCall)]
 101         private delegate void UploadedEventCallbackDelegate(IntPtr image);
 102         private DaliEventHandler<object, UploadedEventArgs> _imageUploadedEventHandler;
 103         private UploadedEventCallbackDelegate _imageUploadedEventCallbackDelegate;
 104
 105         /**
 106           * @brief Event for Uploaded signal which can be used to subscribe/unsubscribe the event handler
 107           * (in the type of UploadedEventHandler-DaliEventHandler<object,UploadedEventArgs>)
 108           * provided by the user. Uploaded signal is emitted when the image data gets uploaded to GL.
 109           */
 110         public event DaliEventHandler<object, UploadedEventArgs> Uploaded
 111         {
 112             add
 113             {
 114                 lock (this)
 115                 {
 116                     // Restricted to only one listener
 117                     if (_imageUploadedEventHandler == null)
 118                     {
 119                         _imageUploadedEventHandler += value;
 120
 121                         _imageUploadedEventCallbackDelegate = new UploadedEventCallbackDelegate(OnUploaded);
 122                         this.UploadedSignal().Connect(_imageUploadedEventCallbackDelegate);
 123                     }
 124                 }
 125             }
 126
 127             remove
 128             {
 129                 lock (this)
 130                 {
 131                     if (_imageUploadedEventHandler != null)
 132                     {
 133                         this.UploadedSignal().Disconnect(_imageUploadedEventCallbackDelegate);
 134                     }
 135
 136                     _imageUploadedEventHandler -= value;
 137                 }
 138             }
 139         }
 140
 141         // Callback for Image UploadedSignal
 142         private void OnUploaded(IntPtr data)
 143         {
 144             UploadedEventArgs e = new UploadedEventArgs();
 145
 146             // Populate all members of "e" (UploadedEventArgs) with real data
 147             e.Image = Image.GetImageFromPtr(data);
 148
 149             if (_imageUploadedEventHandler != null)
 150             {
 151                 //here we send all data to user event handlers
 152                 _imageUploadedEventHandler(this, e);
 153             }
 154         }
 155
 156
 157         public static Image GetImageFromPtr(global::System.IntPtr cPtr)
 158         {
 159             Image ret = new Image(cPtr, false);
 160             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 161             return ret;
 162         }
 163
 164
 165         public Image() : this(NDalicPINVOKE.new_Image__SWIG_0(), true)
 166         {
 167             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 168         }
 169
 170         public Image(Image handle) : this(NDalicPINVOKE.new_Image__SWIG_1(Image.getCPtr(handle)), true)
 171         {
 172             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 173         }
 174
 175         public Image Assign(Image rhs)
 176         {
 177             Image ret = new Image(NDalicPINVOKE.Image_Assign(swigCPtr, Image.getCPtr(rhs)), false);
 178             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 179             return ret;
 180         }
 181
 182         public static Image DownCast(BaseHandle handle)
 183         {
 184             Image ret = new Image(NDalicPINVOKE.Image_DownCast(BaseHandle.getCPtr(handle)), true);
 185             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 186             return ret;
 187         }
 188
 189         public uint GetWidth()
 190         {
 191             uint ret = NDalicPINVOKE.Image_GetWidth(swigCPtr);
 192             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 193             return ret;
 194         }
 195
 196         public uint GetHeight()
 197         {
 198             uint ret = NDalicPINVOKE.Image_GetHeight(swigCPtr);
 199             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 200             return ret;
 201         }
 202
 203         public ImageSignal UploadedSignal()
 204         {
 205             ImageSignal ret = new ImageSignal(NDalicPINVOKE.Image_UploadedSignal(swigCPtr), false);
 206             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 207             return ret;
 208         }
 209
 210     }
 211
 212 }