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                     NDalicPINVOKE.delete_Image(swigCPtr);
  63                 }
  64                 swigCPtr = new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero);
  65             }
  66
  67             base.Dispose(type);
  68         }
  69
  70
  71
  72         /**
  73           * @brief Event arguments that passed via Uploaded signal
  74           *
  75           */
  76         public class UploadedEventArgs : EventArgs
  77         {
  78             private Image _image;
  79             /**
  80               * @brief Image - is the image data that gets uploaded to GL.
  81               *
  82               */
  83             public Image Image
  84             {
  85                 get
  86                 {
  87                     return _image;
  88                 }
  89                 set
  90                 {
  91                     _image = value;
  92                 }
  93             }
  94         }
  95
  96         [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  97         private delegate void UploadedEventCallbackDelegate(IntPtr image);
  98         private DaliEventHandler<object, UploadedEventArgs> _imageUploadedEventHandler;
  99         private UploadedEventCallbackDelegate _imageUploadedEventCallbackDelegate;
 100
 101         /**
 102           * @brief Event for Uploaded signal which can be used to subscribe/unsubscribe the event handler
 103           * (in the type of UploadedEventHandler-DaliEventHandler<object,UploadedEventArgs>)
 104           * provided by the user. Uploaded signal is emitted when the image data gets uploaded to GL.
 105           */
 106         public event DaliEventHandler<object, UploadedEventArgs> Uploaded
 107         {
 108             add
 109             {
 110                 lock (this)
 111                 {
 112                     // Restricted to only one listener
 113                     if (_imageUploadedEventHandler == null)
 114                     {
 115                         _imageUploadedEventHandler += value;
 116
 117                         _imageUploadedEventCallbackDelegate = new UploadedEventCallbackDelegate(OnUploaded);
 118                         this.UploadedSignal().Connect(_imageUploadedEventCallbackDelegate);
 119                     }
 120                 }
 121             }
 122
 123             remove
 124             {
 125                 lock (this)
 126                 {
 127                     if (_imageUploadedEventHandler != null)
 128                     {
 129                         this.UploadedSignal().Disconnect(_imageUploadedEventCallbackDelegate);
 130                     }
 131
 132                     _imageUploadedEventHandler -= value;
 133                 }
 134             }
 135         }
 136
 137         // Callback for Image UploadedSignal
 138         private void OnUploaded(IntPtr data)
 139         {
 140             UploadedEventArgs e = new UploadedEventArgs();
 141
 142             // Populate all members of "e" (UploadedEventArgs) with real data
 143             e.Image = Image.GetImageFromPtr(data);
 144
 145             if (_imageUploadedEventHandler != null)
 146             {
 147                 //here we send all data to user event handlers
 148                 _imageUploadedEventHandler(this, e);
 149             }
 150         }
 151
 152
 153         public static Image GetImageFromPtr(global::System.IntPtr cPtr)
 154         {
 155             Image ret = new Image(cPtr, false);
 156             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 157             return ret;
 158         }
 159
 160
 161         public Image() : this(NDalicPINVOKE.new_Image__SWIG_0(), true)
 162         {
 163             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 164         }
 165
 166         public Image(Image handle) : this(NDalicPINVOKE.new_Image__SWIG_1(Image.getCPtr(handle)), true)
 167         {
 168             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 169         }
 170
 171         public Image Assign(Image rhs)
 172         {
 173             Image ret = new Image(NDalicPINVOKE.Image_Assign(swigCPtr, Image.getCPtr(rhs)), false);
 174             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 175             return ret;
 176         }
 177
 178         public static Image DownCast(BaseHandle handle)
 179         {
 180             Image ret =  Registry.GetManagedBaseHandleFromNativePtr(handle) as Image;
 181             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 182             return ret;
 183         }
 184
 185         public uint GetWidth()
 186         {
 187             uint ret = NDalicPINVOKE.Image_GetWidth(swigCPtr);
 188             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 189             return ret;
 190         }
 191
 192         public uint GetHeight()
 193         {
 194             uint ret = NDalicPINVOKE.Image_GetHeight(swigCPtr);
 195             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 196             return ret;
 197         }
 198
 199         public ImageSignal UploadedSignal()
 200         {
 201             ImageSignal ret = new ImageSignal(NDalicPINVOKE.Image_UploadedSignal(swigCPtr), false);
 202             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 203             return ret;
 204         }
 205
 206     }
 207
 208 }