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   public delegate void PanFinishedEventHandler(object source, PanFinishedEventArgs e);
  55
  56   [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  57   public delegate void ScrollPositionIntervalReachedEventHandler(object source, ScrollPositionIntervalReachedEventArgs e);
  58
  59   [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  60   private delegate void PanFinishedEventCallbackDelegate();
  61   private PanFinishedEventHandler _scrollBarPanFinishedEventHandler;
  62   private PanFinishedEventCallbackDelegate _scrollBarPanFinishedEventCallbackDelegate;
  63
  64   [UnmanagedFunctionPointer(CallingConvention.StdCall)]
  65   private delegate void ScrollPositionIntervalReachedEventCallbackDelegate();
  66   private ScrollPositionIntervalReachedEventHandler _scrollBarScrollPositionIntervalReachedEventHandler;
  67   private ScrollPositionIntervalReachedEventCallbackDelegate _scrollBarScrollPositionIntervalReachedEventCallbackDelegate;
  68
  69   public event PanFinishedEventHandler PanFinished
  70   {
  71      add
  72      {
  73         lock(this)
  74         {
  75            // Restricted to only one listener
  76            if (_scrollBarPanFinishedEventHandler == null)
  77            {
  78               _scrollBarPanFinishedEventHandler += value;
  79
  80               _scrollBarPanFinishedEventCallbackDelegate = new PanFinishedEventCallbackDelegate(OnScrollBarPanFinished);
  81               this.PanFinishedSignal().Connect(_scrollBarPanFinishedEventCallbackDelegate);
  82            }
  83         }
  84      }
  85
  86      remove
  87      {
  88         lock(this)
  89         {
  90            if (_scrollBarPanFinishedEventHandler != null)
  91            {
  92               this.PanFinishedSignal().Disconnect(_scrollBarPanFinishedEventCallbackDelegate);
  93            }
  94
  95            _scrollBarPanFinishedEventHandler -= value;
  96         }
  97      }
  98   }
  99
 100   // Callback for ScrollBar PanFinishedSignal
 101   private void OnScrollBarPanFinished()
 102   {
 103      PanFinishedEventArgs e = new PanFinishedEventArgs();
 104
 105      if (_scrollBarPanFinishedEventHandler != null)
 106      {
 107         //here we send all data to user event handlers
 108         _scrollBarPanFinishedEventHandler(this, e);
 109      }
 110   }
 111
 112
 113   public event ScrollPositionIntervalReachedEventHandler ScrollPositionIntervalReached
 114   {
 115      add
 116      {
 117         lock(this)
 118         {
 119            // Restricted to only one listener
 120            if (_scrollBarScrollPositionIntervalReachedEventHandler == null)
 121            {
 122               _scrollBarScrollPositionIntervalReachedEventHandler += value;
 123
 124               _scrollBarScrollPositionIntervalReachedEventCallbackDelegate = new ScrollPositionIntervalReachedEventCallbackDelegate(OnScrollBarScrollPositionIntervalReached);
 125               this.ScrollPositionIntervalReachedSignal().Connect(_scrollBarScrollPositionIntervalReachedEventCallbackDelegate);
 126            }
 127         }
 128      }
 129
 130      remove
 131      {
 132         lock(this)
 133         {
 134            if (_scrollBarScrollPositionIntervalReachedEventHandler != null)
 135            {
 136               this.ScrollPositionIntervalReachedSignal().Disconnect(_scrollBarScrollPositionIntervalReachedEventCallbackDelegate);
 137            }
 138
 139            _scrollBarScrollPositionIntervalReachedEventHandler -= value;
 140         }
 141      }
 142   }
 143
 144   // Callback for ScrollBar ScrollPositionIntervalReachedSignal
 145   private void OnScrollBarScrollPositionIntervalReached()
 146   {
 147      ScrollPositionIntervalReachedEventArgs e = new ScrollPositionIntervalReachedEventArgs();
 148
 149      if (_scrollBarScrollPositionIntervalReachedEventHandler != null)
 150      {
 151         //here we send all data to user event handlers
 152         _scrollBarScrollPositionIntervalReachedEventHandler(this, e);
 153      }
 154   }
 155
 156 %}
 157 %enddef
 158
 159 %define DALI_SCROLLBAR_EVENTHANDLER_PARAM( NameSpace, ClassName)
 160   SCROLLBAR_EVENTHANDLER_TYPEMAP_EVENTARG( NameSpace, ClassName);
 161   SCROLLBAR_EVENTHANDLER_TYPEMAP_HELPER( NameSpace, ClassName);
 162 %enddef
 163
 164 namespace Dali
 165 {
 166   DALI_SCROLLBAR_EVENTHANDLER_PARAM( Dali::Toolkit, ScrollBar);
 167 }
 168