2 * Copyright(c) 2021 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 using System.Runtime.InteropServices;
19 using Tizen.NUI.BaseComponents;
20 using System.ComponentModel;
25 /// It tries to detect when the user moves two touch points towards or away from each other.
27 /// This will be public opened in tizen_5.0 after ACR done. Before ACR, need to be hidden as inhouse API.
28 [EditorBrowsable(EditorBrowsableState.Never)]
29 public class PinchGestureDetector : GestureDetector
32 /// Creates an initialized PinchGestureDetector.
34 /// This will be public opened in tizen_5.0 after ACR done. Before ACR, need to be hidden as inhouse API.
35 [EditorBrowsable(EditorBrowsableState.Never)]
36 public PinchGestureDetector() : this(Interop.PinchGesture.PinchGestureDetectorNew(), true)
38 if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
43 /// The copy constructor.
45 /// <param name="handle">A reference to the copied handle</param>
46 /// This will be public opened in tizen_5.0 after ACR done. Before ACR, need to be hidden as inhouse API.
47 [EditorBrowsable(EditorBrowsableState.Never)]
48 public PinchGestureDetector(PinchGestureDetector handle) : this(Interop.PinchGesture.NewPinchGestureDetector(PinchGestureDetector.getCPtr(handle)), true, false)
50 if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
53 internal PinchGestureDetector(global::System.IntPtr cPtr, bool cMemoryOwn) : this(cPtr, cMemoryOwn, cMemoryOwn)
57 internal PinchGestureDetector(global::System.IntPtr cPtr, bool cMemoryOwn, bool cRegister) : base(cPtr, cMemoryOwn, cRegister)
61 private DaliEventHandler<object, DetectedEventArgs> detectedEventHandler;
62 [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
63 private delegate void DetectedCallbackType(IntPtr actor, IntPtr pinchGesture);
64 private DetectedCallbackType detectedCallback;
67 /// This signal is emitted when the specified pinch is detected on the attached view.
69 /// This will be public opened in tizen_5.0 after ACR done. Before ACR, need to be hidden as inhouse API.
70 [EditorBrowsable(EditorBrowsableState.Never)]
71 public event DaliEventHandler<object, DetectedEventArgs> Detected
75 if (detectedEventHandler == null)
77 detectedCallback = OnPinchGestureDetected;
78 DetectedSignal().Connect(detectedCallback);
81 detectedEventHandler += value;
86 detectedEventHandler -= value;
88 if (detectedEventHandler == null && DetectedSignal().Empty() == false)
90 DetectedSignal().Disconnect(detectedCallback);
96 internal static PinchGestureDetector GetPinchGestureDetectorFromPtr(global::System.IntPtr cPtr)
98 PinchGestureDetector ret = new PinchGestureDetector(cPtr, false);
99 if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
103 internal new static PinchGestureDetector DownCast(BaseHandle handle)
105 PinchGestureDetector ret = Registry.GetManagedBaseHandleFromNativePtr(handle) as PinchGestureDetector;
106 if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
110 internal PinchGestureDetector Assign(PinchGestureDetector rhs)
112 PinchGestureDetector ret = new PinchGestureDetector(Interop.PinchGesture.PinchGestureDetectorAssign(SwigCPtr, PinchGestureDetector.getCPtr(rhs)), false);
113 if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
117 internal PinchGestureDetectedSignal DetectedSignal()
119 PinchGestureDetectedSignal ret = new PinchGestureDetectedSignal(Interop.PinchGesture.PinchGestureDetectorDetectedSignal(SwigCPtr), false);
120 if (NDalicPINVOKE.SWIGPendingException.Pending) throw NDalicPINVOKE.SWIGPendingException.Retrieve();
125 /// override it to clean-up your own resources.
127 /// <param name="type"></param>
128 [EditorBrowsable(EditorBrowsableState.Never)]
129 protected override void Dispose(DisposeTypes type)
136 if (type == DisposeTypes.Explicit)
139 //Release your own managed resources here.
140 //You should release all of your own disposable objects here.
143 //Release your own unmanaged resources here.
144 //You should not access any managed member here except static instance.
145 //because the execution order of Finalizes is non-deterministic.
149 if (detectedCallback != null)
151 using PinchGestureDetectedSignal signal = new PinchGestureDetectedSignal(Interop.PinchGesture.PinchGestureDetectorDetectedSignal(GetBaseHandleCPtrHandleRef), false);
152 signal?.Disconnect(detectedCallback);
153 detectedCallback = null;
159 /// This will not be public opened.
160 [EditorBrowsable(EditorBrowsableState.Never)]
161 protected override void ReleaseSwigCPtr(System.Runtime.InteropServices.HandleRef swigCPtr)
163 Interop.PinchGesture.DeletePinchGestureDetector(swigCPtr);
166 private void OnPinchGestureDetected(IntPtr actor, IntPtr pinchGesture)
168 if (detectedEventHandler != null)
170 DetectedEventArgs e = new DetectedEventArgs();
172 // Populate all members of "e" (DetectedEventArgs) with real data.
173 e.View = Registry.GetManagedBaseHandleFromNativePtr(actor) as View;
176 e.View = Registry.GetManagedBaseHandleFromRefObject(actor) as View;
179 // If DispatchGestureEvents is false, no gesture events are dispatched.
180 if (e.View != null && e.View.DispatchGestureEvents == false)
185 e.PinchGesture = Tizen.NUI.PinchGesture.GetPinchGestureFromPtr(pinchGesture);
186 //Here we send all data to user event handlers.
187 detectedEventHandler(this, e);
192 /// Event arguments that passed via the PinchGestureEvent signal.
194 /// <since_tizen> 5 </since_tizen>
195 /// This will be public opened in tizen_5.0 after ACR done. Before ACR, need to be hidden as inhouse API.
196 [EditorBrowsable(EditorBrowsableState.Never)]
197 public class DetectedEventArgs : EventArgs
200 private PinchGesture pinchGesture;
201 private bool handled = true;
204 /// The attached view.
206 /// <since_tizen> 5 </since_tizen>
207 /// This will be public opened in tizen_5.0 after ACR done. Before ACR, need to be hidden as inhouse API.
208 [EditorBrowsable(EditorBrowsableState.Never)]
222 /// The PinchGesture.
224 /// <since_tizen> 5 </since_tizen>
225 /// This will be public opened in tizen_5.0 after ACR done. Before ACR, need to be hidden as inhouse API.
226 [EditorBrowsable(EditorBrowsableState.Never)]
227 public PinchGesture PinchGesture
235 pinchGesture = value;
240 /// Gets or sets a value that indicates whether the event handler has completely handled the event or whether the system should continue its own processing.
242 [EditorBrowsable(EditorBrowsableState.Never)]
249 Interop.Actor.SetNeedGesturePropagation(View.getCPtr(view), !value);
250 if (NDalicPINVOKE.SWIGPendingException.Pending)
251 throw NDalicPINVOKE.SWIGPendingException.Retrieve();