plugins/dali-swig/SWIG/events/image-event.i

   1 /*
   2  * Copyright (c) 2016 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 %define IMAGE_EVENTHANDLER_TYPEMAP_EVENTARG(NameSpace, ClassName)
  19 %typemap(csimports) NameSpace::ClassName %{
  20 using System;
  21 using System.Runtime.InteropServices;
  22
  23 %}
  24 %enddef
  25
  26 %define IMAGE_EVENTHANDLER_TYPEMAP_HELPER(NameSpace, ClassName)
  27 %typemap(cscode) NameSpace::ClassName %{
  28
  29
  30 /**
  31   * @brief Event arguments that passed via Uploaded signal
  32   *
  33   */
  34 public class UploadedEventArgs : EventArgs
  35 {
  36    private Image _image;
  37    /**
  38      * @brief Image - is the image data that gets uploaded to GL.
  39      *
  40      */
  41    public Image Image
  42    {
  43       get
  44       {
  45          return _image;
  46       }
  47       set
  48       {
  49          _image = value;
  50       }
  51    }
  52 }
  53
  54   [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  55   public delegate void UploadedEventHandler(object source, UploadedEventArgs e);
  56
  57   [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  58   private delegate void UploadedEventCallbackDelegate(IntPtr image);
  59   private UploadedEventHandler _imageUploadedEventHandler;
  60   private UploadedEventCallbackDelegate _imageUploadedEventCallbackDelegate;
  61
  62   /**
  63     * @brief Event for Uploaded signal which can be used to subscribe/unsubscribe the event handler
  64     * (in the type of UploadedEventHandler) provided by the user.
  65     * Uploaded signal is emitted when the image data gets uploaded to GL.
  66     */
  67   public event UploadedEventHandler Uploaded
  68   {
  69      add
  70      {
  71         lock(this)
  72         {
  73            // Restricted to only one listener
  74            if (_imageUploadedEventHandler == null)
  75            {
  76               _imageUploadedEventHandler += value;
  77
  78               _imageUploadedEventCallbackDelegate = new UploadedEventCallbackDelegate(OnUploaded);
  79               this.UploadedSignal().Connect(_imageUploadedEventCallbackDelegate);
  80            }
  81         }
  82      }
  83
  84      remove
  85      {
  86         lock(this)
  87         {
  88            if (_imageUploadedEventHandler != null)
  89            {
  90               this.UploadedSignal().Disconnect(_imageUploadedEventCallbackDelegate);
  91            }
  92
  93            _imageUploadedEventHandler -= value;
  94         }
  95      }
  96   }
  97
  98   // Callback for Image UploadedSignal
  99   private void OnUploaded(IntPtr data)
 100   {
 101      UploadedEventArgs e = new UploadedEventArgs();
 102
 103      // Populate all members of "e" (UploadedEventArgs) with real data
 104      e.Image = Image.GetImageFromPtr(data);
 105
 106      if (_imageUploadedEventHandler != null)
 107      {
 108         //here we send all data to user event handlers
 109         _imageUploadedEventHandler(this, e);
 110      }
 111   }
 112
 113
 114 public static ClassName Get ## ClassName ## FromPtr(global::System.IntPtr cPtr) {
 115     ClassName ret = new ClassName(cPtr, false);
 116    if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 117     return ret;
 118   }
 119
 120 %}
 121
 122 %enddef
 123
 124
 125 %define DALI_IMAGE_EVENTHANDLER_PARAM( NameSpace, ClassName)
 126   IMAGE_EVENTHANDLER_TYPEMAP_EVENTARG( NameSpace, ClassName);
 127   IMAGE_EVENTHANDLER_TYPEMAP_HELPER( NameSpace, ClassName);
 128 %enddef
 129
 130 namespace Dali
 131 {
 132   DALI_IMAGE_EVENTHANDLER_PARAM( Dali, Image);
 133 }