dali-toolkit/internal/transition/transition-set-impl.cpp

   1 /*
   2  * Copyright (c) 2021 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-toolkit/internal/transition/transition-set-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/integration-api/adaptor-framework/adaptor.h>
  23 #include <dali/integration-api/debug.h>
  24 #include <dali/public-api/object/type-registry.h>
  25
  26 namespace Dali
  27 {
  28 namespace Toolkit
  29 {
  30 namespace Internal
  31 {
  32 namespace
  33 {
  34 // Signals
  35 static constexpr std::string_view SIGNAL_FINISHED = "finished";
  36
  37 BaseHandle Create()
  38 {
  39   return Dali::Toolkit::TransitionSet::New();
  40 }
  41
  42 TypeRegistration mType(typeid(Dali::Toolkit::TransitionSet), typeid(Dali::BaseHandle), Create);
  43
  44 SignalConnectorType signalConnector1(mType, std::string(SIGNAL_FINISHED), &TransitionSet::DoConnectSignal);
  45
  46 } // anonymous namespace
  47
  48 TransitionSetPtr TransitionSet::New()
  49 {
  50   TransitionSetPtr transitionSet = new TransitionSet();
  51
  52   return transitionSet;
  53 }
  54
  55 TransitionSet::TransitionSet()
  56 {
  57 }
  58
  59 TransitionSet::~TransitionSet()
  60 {
  61   mTransitions.clear();
  62   mPlaylist.clear();
  63 }
  64
  65 void TransitionSet::AddTransition(TransitionBasePtr transition)
  66 {
  67   mTransitions.push_back(transition);
  68 }
  69
  70 TransitionBase* TransitionSet::GetTransitionAt(uint32_t index) const
  71 {
  72   TransitionBase* result(nullptr);
  73   if(index < GetTransitionCount())
  74   {
  75     result = mTransitions[index].Get();
  76   }
  77   else
  78   {
  79     DALI_LOG_ERROR("Error: Invalid index to TextureSet::GetTexture\n");
  80   }
  81
  82   return result;
  83 }
  84
  85 uint32_t TransitionSet::GetTransitionCount() const
  86 {
  87   return mTransitions.size();
  88 }
  89
  90 void TransitionSet::QueueToPlay()
  91 {
  92   for(auto&& transition : mTransitions)
  93   {
  94     transition->SetPlay(Dali::Toolkit::TransitionSet(this));
  95   }
  96
  97   Adaptor::Get().RegisterProcessor(*this, true);
  98   Adaptor::Get().RegisterProcessor(*this, false);
  99 }
 100
 101 void TransitionSet::TransitionPreProcess()
 102 {
 103   float lastDuration = 0.0f;
 104   for(auto&& transition : mTransitions)
 105   {
 106     if(lastDuration <= transition->GetDuration() + transition->GetDelay())
 107     {
 108       lastDuration = transition->GetDuration() + transition->GetDelay();
 109     }
 110   }
 111   mAnimation = Dali::Animation::New(lastDuration);
 112
 113   for(auto&& transition : mTransitions)
 114   {
 115     transition->PreProcess(mAnimation);
 116   }
 117 }
 118
 119 void TransitionSet::TransitionStart()
 120 {
 121   mPlaylist.clear();
 122   for(auto&& transition : mTransitions)
 123   {
 124     mPlaylist.push_back(transition);
 125     transition->Play();
 126   }
 127
 128   mAnimation.FinishedSignal().Connect(this, &TransitionSet::TransitionFinished);
 129   mAnimation.Play();
 130 }
 131
 132 void TransitionSet::TransitionFinished(Dali::Animation& source)
 133 {
 134   for(auto&& transition : mTransitions)
 135   {
 136     transition->TransitionFinished();
 137   }
 138
 139   mPlaylist.clear();
 140   EmitSignalFinish();
 141 }
 142
 143 Dali::Toolkit::TransitionSet::TransitionSetSignalType& TransitionSet::FinishedSignal()
 144 {
 145   return mFinishedSignal;
 146 }
 147
 148 void TransitionSet::EmitSignalFinish()
 149 {
 150   if(!mFinishedSignal.Empty())
 151   {
 152     Dali::Toolkit::TransitionSet handle(this);
 153     mFinishedSignal.Emit(handle);
 154   }
 155 }
 156
 157 bool TransitionSet::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
 158 {
 159   bool           connected(false);
 160   TransitionSet* transitionSet = static_cast<TransitionSet*>(object); // TypeRegistry guarantees that this is the correct type.
 161
 162   if(SIGNAL_FINISHED == signalName)
 163   {
 164     transitionSet->FinishedSignal().Connect(tracker, functor);
 165     connected = true;
 166   }
 167
 168   return connected;
 169 }
 170
 171 void TransitionSet::Process(bool postProcessor)
 172 {
 173   if(!postProcessor)
 174   {
 175     TransitionPreProcess();
 176   }
 177   else
 178   {
 179     TransitionStart();
 180   }
 181
 182   if(Adaptor::IsAvailable())
 183   {
 184     Adaptor::Get().UnregisterProcessor(*this, postProcessor);
 185   }
 186 }
 187
 188 } // namespace Internal
 189
 190 } // namespace Toolkit
 191
 192 } // namespace Dali