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

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