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   private delegate void UploadedEventCallbackDelegate(IntPtr image);
  56   private DaliEventHandler<object,UploadedEventArgs> _imageUploadedEventHandler;
  57   private UploadedEventCallbackDelegate _imageUploadedEventCallbackDelegate;
  58
  59   /**
  60     * @brief Event for Uploaded signal which can be used to subscribe/unsubscribe the event handler
  61     * (in the type of UploadedEventHandler-DaliEventHandler<object,UploadedEventArgs>)
  62     * provided by the user. Uploaded signal is emitted when the image data gets uploaded to GL.
  63     */
  64   public event DaliEventHandler<object,UploadedEventArgs> Uploaded
  65   {
  66      add
  67      {
  68         lock(this)
  69         {
  70            // Restricted to only one listener
  71            if (_imageUploadedEventHandler == null)
  72            {
  73               _imageUploadedEventHandler += value;
  74
  75               _imageUploadedEventCallbackDelegate = new UploadedEventCallbackDelegate(OnUploaded);
  76               this.UploadedSignal().Connect(_imageUploadedEventCallbackDelegate);
  77            }
  78         }
  79      }
  80
  81      remove
  82      {
  83         lock(this)
  84         {
  85            if (_imageUploadedEventHandler != null)
  86            {
  87               this.UploadedSignal().Disconnect(_imageUploadedEventCallbackDelegate);
  88            }
  89
  90            _imageUploadedEventHandler -= value;
  91         }
  92      }
  93   }
  94
  95   // Callback for Image UploadedSignal
  96   private void OnUploaded(IntPtr data)
  97   {
  98      UploadedEventArgs e = new UploadedEventArgs();
  99
 100      // Populate all members of "e" (UploadedEventArgs) with real data
 101      e.Image = Image.GetImageFromPtr(data);
 102
 103      if (_imageUploadedEventHandler != null)
 104      {
 105         //here we send all data to user event handlers
 106         _imageUploadedEventHandler(this, e);
 107      }
 108   }
 109
 110
 111 public static ClassName Get ## ClassName ## FromPtr(global::System.IntPtr cPtr) {
 112     ClassName ret = new ClassName(cPtr, false);
 113    if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 114     return ret;
 115   }
 116
 117 %}
 118
 119 %enddef
 120
 121
 122 %define DALI_IMAGE_EVENTHANDLER_PARAM( NameSpace, ClassName)
 123   IMAGE_EVENTHANDLER_TYPEMAP_EVENTARG( NameSpace, ClassName);
 124   IMAGE_EVENTHANDLER_TYPEMAP_HELPER( NameSpace, ClassName);
 125 %enddef
 126
 127 namespace Dali
 128 {
 129   DALI_IMAGE_EVENTHANDLER_PARAM( Dali, Image);
 130 }