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         public class DetectedEventArgs : EventArgs
  76         {
  77             private View _view;
  78             private PinchGesture _pinchGesture;
  79
  80             public View View
  81             {
  82                 get
  83                 {
  84                     return _view;
  85                 }
  86                 set
  87                 {
  88                     _view = value;
  89                 }
  90             }
  91
  92             public PinchGesture PinchGesture
  93             {
  94                 get
  95                 {
  96                     return _pinchGesture;
  97                 }
  98                 set
  99                 {
 100                     _pinchGesture = value;
 101                 }
 102             }
 103         }
 104
 105         [UnmanagedFunctionPointer(CallingConvention.StdCall)]
 106         private delegate void DetectedCallbackDelegate(IntPtr actor, IntPtr pinchGesture);
 107         private DaliEventHandler<object, DetectedEventArgs> _pinchGestureEventHandler;
 108         private DetectedCallbackDelegate _pinchGestureCallbackDelegate;
 109
 110
 111         public event DaliEventHandler<object, DetectedEventArgs> Detected
 112         {
 113             add
 114             {
 115                 lock (this)
 116                 {
 117                     // Restricted to only one listener
 118                     if (_pinchGestureEventHandler == null)
 119                     {
 120                         _pinchGestureEventHandler += value;
 121
 122                         _pinchGestureCallbackDelegate = new DetectedCallbackDelegate(OnPinchGestureDetected);
 123                         this.DetectedSignal().Connect(_pinchGestureCallbackDelegate);
 124                     }
 125                 }
 126             }
 127
 128             remove
 129             {
 130                 lock (this)
 131                 {
 132                     if (_pinchGestureEventHandler != null)
 133                     {
 134                         this.DetectedSignal().Disconnect(_pinchGestureCallbackDelegate);
 135                     }
 136
 137                     _pinchGestureEventHandler -= value;
 138                 }
 139             }
 140         }
 141
 142         private void OnPinchGestureDetected(IntPtr actor, IntPtr pinchGesture)
 143         {
 144             DetectedEventArgs e = new DetectedEventArgs();
 145
 146             // Populate all members of "e" (DetectedEventArgs) with real data
 147             e.View = Registry.GetManagedBaseHandleFromNativePtr(actor) as View;
 148             e.PinchGesture = Tizen.NUI.PinchGesture.GetPinchGestureFromPtr(pinchGesture);
 149
 150             if (_pinchGestureEventHandler != null)
 151             {
 152                 //here we send all data to user event handlers
 153                 _pinchGestureEventHandler(this, e);
 154             }
 155
 156         }
 157
 158
 159         public static PinchGestureDetector GetPinchGestureDetectorFromPtr(global::System.IntPtr cPtr)
 160         {
 161             PinchGestureDetector ret = new PinchGestureDetector(cPtr, false);
 162             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 163             return ret;
 164         }
 165
 166
 167         public PinchGestureDetector() : this(NDalicPINVOKE.PinchGestureDetector_New(), true)
 168         {
 169             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 170
 171         }
 172         public new static PinchGestureDetector DownCast(BaseHandle handle)
 173         {
 174             PinchGestureDetector ret =  Registry.GetManagedBaseHandleFromNativePtr(handle) as PinchGestureDetector;
 175             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 176             return ret;
 177         }
 178
 179         public PinchGestureDetector(PinchGestureDetector handle) : this(NDalicPINVOKE.new_PinchGestureDetector__SWIG_1(PinchGestureDetector.getCPtr(handle)), true)
 180         {
 181             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 182         }
 183
 184         public PinchGestureDetector Assign(PinchGestureDetector rhs)
 185         {
 186             PinchGestureDetector ret = new PinchGestureDetector(NDalicPINVOKE.PinchGestureDetector_Assign(swigCPtr, PinchGestureDetector.getCPtr(rhs)), false);
 187             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 188             return ret;
 189         }
 190
 191         internal PinchGestureDetectedSignal DetectedSignal()
 192         {
 193             PinchGestureDetectedSignal ret = new PinchGestureDetectedSignal(NDalicPINVOKE.PinchGestureDetector_DetectedSignal(swigCPtr), false);
 194             if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
 195             return ret;
 196         }
 197
 198     }
 199
 200 }