plugins/dali-swig/SWIG/events/scrollbar-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 SCROLLBAR_EVENTHANDLER_TYPEMAP_EVENTARG(NameSpace, ClassName)
  19 %typemap(csimports) NameSpace::ClassName %{
  20 using System;
  21 using System.Runtime.InteropServices;
  22
  23 %}
  24
  25 %enddef
  26
  27
  28 %define SCROLLBAR_EVENTHANDLER_TYPEMAP_HELPER(NameSpace, ClassName)
  29 %typemap(cscode) NameSpace::ClassName %{
  30
  31
  32 public class PanFinishedEventArgs : EventArgs
  33 {
  34 }
  35
  36 public class ScrollPositionIntervalReachedEventArgs : EventArgs
  37 {
  38    private float _currentScrollPosition;
  39
  40    public float CurrentScrollPosition
  41    {
  42       get
  43       {
  44          return _currentScrollPosition;
  45       }
  46       set
  47       {
  48          _currentScrollPosition = value;
  49       }
  50    }
  51 }
  52
  53   [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  54   private delegate void PanFinishedEventCallbackDelegate();
  55   private DaliEventHandler<object,PanFinishedEventArgs> _scrollBarPanFinishedEventHandler;
  56   private PanFinishedEventCallbackDelegate _scrollBarPanFinishedEventCallbackDelegate;
  57
  58   [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  59   private delegate void ScrollPositionIntervalReachedEventCallbackDelegate();
  60   private DaliEventHandler<object,ScrollPositionIntervalReachedEventArgs> _scrollBarScrollPositionIntervalReachedEventHandler;
  61   private ScrollPositionIntervalReachedEventCallbackDelegate _scrollBarScrollPositionIntervalReachedEventCallbackDelegate;
  62
  63   public event DaliEventHandler<object,PanFinishedEventArgs> PanFinished
  64   {
  65      add
  66      {
  67         lock(this)
  68         {
  69            // Restricted to only one listener
  70            if (_scrollBarPanFinishedEventHandler == null)
  71            {
  72               _scrollBarPanFinishedEventHandler += value;
  73
  74               _scrollBarPanFinishedEventCallbackDelegate = new PanFinishedEventCallbackDelegate(OnScrollBarPanFinished);
  75               this.PanFinishedSignal().Connect(_scrollBarPanFinishedEventCallbackDelegate);
  76            }
  77         }
  78      }
  79
  80      remove
  81      {
  82         lock(this)
  83         {
  84            if (_scrollBarPanFinishedEventHandler != null)
  85            {
  86               this.PanFinishedSignal().Disconnect(_scrollBarPanFinishedEventCallbackDelegate);
  87            }
  88
  89            _scrollBarPanFinishedEventHandler -= value;
  90         }
  91      }
  92   }
  93
  94   // Callback for ScrollBar PanFinishedSignal
  95   private void OnScrollBarPanFinished()
  96   {
  97      PanFinishedEventArgs e = new PanFinishedEventArgs();
  98
  99      if (_scrollBarPanFinishedEventHandler != null)
 100      {
 101         //here we send all data to user event handlers
 102         _scrollBarPanFinishedEventHandler(this, e);
 103      }
 104   }
 105
 106
 107   public event DaliEventHandler<object,ScrollPositionIntervalReachedEventArgs> ScrollPositionIntervalReached
 108   {
 109      add
 110      {
 111         lock(this)
 112         {
 113            // Restricted to only one listener
 114            if (_scrollBarScrollPositionIntervalReachedEventHandler == null)
 115            {
 116               _scrollBarScrollPositionIntervalReachedEventHandler += value;
 117
 118               _scrollBarScrollPositionIntervalReachedEventCallbackDelegate = new ScrollPositionIntervalReachedEventCallbackDelegate(OnScrollBarScrollPositionIntervalReached);
 119               this.ScrollPositionIntervalReachedSignal().Connect(_scrollBarScrollPositionIntervalReachedEventCallbackDelegate);
 120            }
 121         }
 122      }
 123
 124      remove
 125      {
 126         lock(this)
 127         {
 128            if (_scrollBarScrollPositionIntervalReachedEventHandler != null)
 129            {
 130               this.ScrollPositionIntervalReachedSignal().Disconnect(_scrollBarScrollPositionIntervalReachedEventCallbackDelegate);
 131            }
 132
 133            _scrollBarScrollPositionIntervalReachedEventHandler -= value;
 134         }
 135      }
 136   }
 137
 138   // Callback for ScrollBar ScrollPositionIntervalReachedSignal
 139   private void OnScrollBarScrollPositionIntervalReached()
 140   {
 141      ScrollPositionIntervalReachedEventArgs e = new ScrollPositionIntervalReachedEventArgs();
 142
 143      if (_scrollBarScrollPositionIntervalReachedEventHandler != null)
 144      {
 145         //here we send all data to user event handlers
 146         _scrollBarScrollPositionIntervalReachedEventHandler(this, e);
 147      }
 148   }
 149
 150 %}
 151 %enddef
 152
 153 %define DALI_SCROLLBAR_EVENTHANDLER_PARAM( NameSpace, ClassName)
 154   SCROLLBAR_EVENTHANDLER_TYPEMAP_EVENTARG( NameSpace, ClassName);
 155   SCROLLBAR_EVENTHANDLER_TYPEMAP_HELPER( NameSpace, ClassName);
 156 %enddef
 157
 158 namespace Dali
 159 {
 160   DALI_SCROLLBAR_EVENTHANDLER_PARAM( Dali::Toolkit, ScrollBar);
 161 }
 162