dali/internal/event/events/pinch-gesture-detector-impl.cpp

   1 /*
   2  * Copyright (c) 2014 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 // CLASS HEADER
  19 #include <dali/internal/event/events/pinch-gesture-detector-impl.h>
  20
  21 // INTERNAL INCLUDES
  22 #include <dali/public-api/events/pinch-gesture.h>
  23 #include <dali/public-api/object/type-registry.h>
  24 #include <dali/internal/event/events/gesture-event-processor.h>
  25 #include <dali/integration-api/debug.h>
  26
  27 namespace Dali
  28 {
  29
  30 namespace Internal
  31 {
  32
  33 namespace
  34 {
  35 BaseHandle Create()
  36 {
  37   return Dali::PinchGestureDetector::New();
  38 }
  39
  40 TypeRegistration mType( typeid(Dali::PinchGestureDetector), typeid(Dali::GestureDetector), Create );
  41
  42 SignalConnectorType signalConnector1( mType, Dali::PinchGestureDetector::SIGNAL_PINCH_DETECTED, &PinchGestureDetector::DoConnectSignal );
  43
  44 }
  45
  46
  47 PinchGestureDetectorPtr PinchGestureDetector::New()
  48 {
  49   return new PinchGestureDetector;
  50 }
  51
  52 PinchGestureDetector::PinchGestureDetector()
  53 : GestureDetector(Gesture::Pinch)
  54 {
  55 }
  56
  57 PinchGestureDetector::~PinchGestureDetector()
  58 {
  59 }
  60
  61 void PinchGestureDetector::EmitPinchGestureSignal(Dali::Actor actor, const PinchGesture& pinch)
  62 {
  63   // Guard against destruction during signal emission
  64   Dali::PinchGestureDetector handle( this );
  65
  66   mDetectedSignalV2.Emit( actor, pinch );
  67 }
  68
  69 bool PinchGestureDetector::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor )
  70 {
  71   bool connected( true );
  72   PinchGestureDetector* gesture = dynamic_cast<PinchGestureDetector*>(object);
  73
  74   if ( Dali::PinchGestureDetector::SIGNAL_PINCH_DETECTED == signalName )
  75   {
  76     gesture->DetectedSignal().Connect( tracker, functor );
  77   }
  78   else
  79   {
  80     // signalName does not match any signal
  81     connected = false;
  82   }
  83
  84   return connected;
  85 }
  86
  87 void PinchGestureDetector::OnActorAttach(Actor& actor)
  88 {
  89   // Do nothing
  90 }
  91
  92 void PinchGestureDetector::OnActorDetach(Actor& actor)
  93 {
  94   // Do nothing
  95 }
  96
  97 void PinchGestureDetector::OnActorDestroyed(Object& object)
  98 {
  99   // Do nothing
 100 }
 101
 102 } // namespace Internal
 103
 104 } // namespace Dali