dali-toolkit/internal/transition/transition-impl.h

   1 #ifndef DALI_TOOLKIT_INTERNAL_TRANSITION_H
   2 #define DALI_TOOLKIT_INTERNAL_TRANSITION_H
   3
   4 /*
   5  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  * http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  */
  20
  21 // INTERNAL INCLUDES
  22 #include <dali-toolkit/internal/transition/transition-base-impl.h>
  23 #include <dali-toolkit/public-api/controls/control.h>
  24 #include <dali-toolkit/public-api/transition/transition.h>
  25
  26 // EXTERNAL INCLUDES
  27 #include <dali/public-api/object/weak-handle.h>
  28
  29 namespace Dali
  30 {
  31 namespace Toolkit
  32 {
  33 namespace Internal
  34 {
  35 using TransitionPtr = IntrusivePtr<Transition>;
  36
  37 class Transition : public TransitionBase
  38 {
  39 public:
  40   /**
  41    * @brief Create a new Transition object.
  42    * @param[in] source A source control of this transition.
  43    * @param[in] destination A destination control of this transition.
  44    * @param[in] timePeriod The timePeriod of the animation.
  45    * @return A smart-pointer to the newly allocated Transition.
  46    */
  47   static TransitionPtr New(Dali::Toolkit::Control source, Dali::Toolkit::Control destination, TimePeriod timePeriod);
  48
  49 protected:
  50   /**
  51    * @copydoc Dali::Toolkit::Transition::OnPlay()
  52    */
  53   void OnPlay() override;
  54
  55   /**
  56    * @brief Emit the Finished signal
  57    */
  58   void OnFinished() override;
  59
  60 protected:
  61   /**
  62    * @brief Construct a new Transition.
  63    */
  64   Transition(Dali::Toolkit::Control source,
  65              Dali::Toolkit::Control destination,
  66              TimePeriod             timePeriod);
  67
  68   /**
  69    * @brief A reference counted object may only be deleted by calling Unreference()
  70    */
  71   ~Transition() override;
  72
  73 private:
  74   // Undefined
  75   Transition(const Transition&);
  76
  77   // Undefined
  78   Transition& operator=(const Transition& rhs);
  79
  80 private:
  81   WeakHandle<Dali::Toolkit::Control> mSourceControl;
  82   WeakHandle<Dali::Toolkit::Control> mDestinationControl;
  83 };
  84
  85 } // namespace Internal
  86
  87 // Helpers for public-api forwarding methods
  88
  89 inline Internal::Transition& GetImplementation(Dali::Toolkit::Transition& transition)
  90 {
  91   DALI_ASSERT_ALWAYS(transition && "Transition handle is empty");
  92
  93   BaseObject& handle = transition.GetBaseObject();
  94
  95   return static_cast<Internal::Transition&>(handle);
  96 }
  97
  98 inline const Internal::Transition& GetImplementation(const Dali::Toolkit::Transition& transition)
  99 {
 100   DALI_ASSERT_ALWAYS(transition && "Transition handle is empty");
 101
 102   const BaseObject& handle = transition.GetBaseObject();
 103
 104   return static_cast<const Internal::Transition&>(handle);
 105 }
 106
 107 } // namespace Toolkit
 108
 109 } // namespace Dali
 110
 111 #endif // DALI_TOOLKIT_INTERNAL_TRANSITION_H