src/Tizen.NUI/src/internal/PinchGestureDetector.cs

   1 /*
   2  * Copyright(c) 2017 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 namespace Tizen.NUI
  19 {
  20
  21     using System;
  22     using System.Runtime.InteropServices;
  23     using Tizen.NUI.BaseComponents;
  24
  25
  26     internal class PinchGestureDetector : GestureDetector
  27     {
  28         private global::System.Runtime.InteropServices.HandleRef swigCPtr;
  29
  30         internal PinchGestureDetector(global::System.IntPtr cPtr, bool cMemoryOwn) : base(NDalicPINVOKE.PinchGestureDetector_SWIGUpcast(cPtr), cMemoryOwn)
  31         {
  32             swigCPtr = new global::System.Runtime.InteropServices.HandleRef(this, cPtr);
  33         }
  34
  35         internal static global::System.Runtime.InteropServices.HandleRef getCPtr(PinchGestureDetector obj)
  36         {
  37             return (obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr;
  38         }
  39
  40
  41         protected override void Dispose(DisposeTypes type)
  42         {
  43             if (disposed)
  44             {
  45                 return;
  46             }
  47
  48             if (type == DisposeTypes.Explicit)
  49             {
  50                 //Called by User
  51                 //Release your own managed resources here.
  52                 //You should release all of your own disposable objects here.
  53
  54             }
  55
  56             //Release your own unmanaged resources here.
  57             //You should not access any managed member here except static instance.
  58             //because the execution order of Finalizes is non-deterministic.
  59
  60
  61             if (swigCPtr.Handle != global::System.IntPtr.Zero)
  62             {
  63                 if (swigCMemOwn)
  64                 {
  65                     swigCMemOwn = false;
  66                     NDalicPINVOKE.delete_PinchGestureDetector(swigCPtr);
  67                 }
  68                 swigCPtr = new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero);
  69             }
  70
  71             base.Dispose(type);
  72         }
  73
  74
  75         /// <since_tizen> 3 </since_tizen>
  76         public class DetectedEventArgs : EventArgs
  77         {
  78             private View _view;
  79             private PinchGesture _pinchGesture;
  80
  81             /// <since_tizen> 3 </since_tizen>
  82             public View View
  83             {
  84                 get
  85                 {
  86                     return _view;
  87                 }
  88                 set
  89                 {
  90                     _view = value;
  91                 }
  92             }
  93
  94             /// <since_tizen> 3 </since_tizen>
  95             public PinchGesture PinchGesture
  96             {
  97                 get
  98                 {
  99                     return _pinchGesture;
 100                 }
 101                 set
 102                 {
 103                     _pinchGesture = value;
 104                 }
 105             }
 106         }
 107
 108         [UnmanagedFunctionPointer(CallingConvention.StdCall)]
 109         private delegate void DetectedCallbackDelegate(IntPtr actor, IntPtr pinchGesture);
 110         private DaliEventHandler<object, DetectedEventArgs> _pinchGestureEventHandler;
 111         private DetectedCallbackDelegate _pinchGestureCallbackDelegate;
 112
 113
 114         public event DaliEventHandler<object, DetectedEventArgs> Detected
 115         {
 116             add
 117             {
 118                 lock (this)
 119                 {
 120                     // Restricted to only one listener
 121                     if (_pinchGestureEventHandler == null)
 122                     {
 123                         _pinchGestureEventHandler += value;
 124
 125                         _pinchGestureCallbackDelegate = new DetectedCallbackDelegate(OnPinchGestureDetected);
 126                         this.DetectedSignal().Connect(_pinchGestureCallbackDelegate);
 127                     }
 128                 }
 129             }
 130
 131             remove
 132             {
 133                 lock (this)
 134                 {
 135                     if (_pinchGestureEventHandler != null)
 136                     {
 137                         this.DetectedSignal().Disconnect(_pinchGestureCallbackDelegate);
 138                     }
 139
 140                     _pinchGestureEventHandler -= value;
 141                 }
 142             }
 143         }
 144
 145         private void OnPinchGestureDetected(IntPtr actor, IntPtr pinchGesture)
 146         {
 147             DetectedEventArgs e = new DetectedEventArgs();
 148
 149             // Populate all members of "e" (DetectedEventArgs) with real data
 150             e.View = Registry.GetManagedBaseHandleFromNativePtr(actor) as View;
 151             e.PinchGesture = Tizen.NUI.PinchGesture.GetPinchGestureFromPtr(pinchGesture);
 152
 153             if (_pinchGestureEventHandler != null)
 154             {
 155                 //here we send all data to user event handlers
 156                 _pinchGestureEventHandler(this, e);
 157             }
 158
 159         }
 160
 161
 162         public static PinchGestureDetector GetPinchGestureDetectorFromPtr(global::System.IntPtr cPtr)
 163         {
 164             PinchGestureDetector ret = new PinchGestureDetector(cPtr, false);
 165             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 166             return ret;
 167         }
 168
 169
 170         public PinchGestureDetector() : this(NDalicPINVOKE.PinchGestureDetector_New(), true)
 171         {
 172             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 173
 174         }
 175         public new static PinchGestureDetector DownCast(BaseHandle handle)
 176         {
 177             PinchGestureDetector ret =  Registry.GetManagedBaseHandleFromNativePtr(handle) as PinchGestureDetector;
 178             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 179             return ret;
 180         }
 181
 182         public PinchGestureDetector(PinchGestureDetector handle) : this(NDalicPINVOKE.new_PinchGestureDetector__SWIG_1(PinchGestureDetector.getCPtr(handle)), true)
 183         {
 184             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 185         }
 186
 187         public PinchGestureDetector Assign(PinchGestureDetector rhs)
 188         {
 189             PinchGestureDetector ret = new PinchGestureDetector(NDalicPINVOKE.PinchGestureDetector_Assign(swigCPtr, PinchGestureDetector.getCPtr(rhs)), false);
 190             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 191             return ret;
 192         }
 193
 194         internal PinchGestureDetectedSignal DetectedSignal()
 195         {
 196             PinchGestureDetectedSignal ret = new PinchGestureDetectedSignal(NDalicPINVOKE.PinchGestureDetector_DetectedSignal(swigCPtr), false);
 197             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 198             return ret;
 199         }
 200
 201     }
 202
 203 }