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

   1 /*
   2  * Copyright (c) 2022 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/slide-transition-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali-toolkit/public-api/controls/control-impl.h>
  23 #include <dali/devel-api/actors/actor-devel.h>
  24 #include <dali/devel-api/adaptor-framework/window-devel.h>
  25 #include <dali/integration-api/debug.h>
  26 #include <dali/public-api/common/dali-common.h>
  27 #include <dali/public-api/math/math-utils.h>
  28 #include <dali/public-api/object/type-registry.h>
  29 #include <limits>
  30
  31 namespace Dali
  32 {
  33 namespace Toolkit
  34 {
  35 namespace Internal
  36 {
  37 SlideTransitionPtr SlideTransition::New(Dali::Toolkit::Control control, const Vector2& direction, TimePeriod timePeriod)
  38 {
  39   float delaySeconds = timePeriod.delaySeconds;
  40   if(delaySeconds < 0.0f)
  41   {
  42     DALI_LOG_WARNING("delay should be greater than 0.0f.\n");
  43     delaySeconds = 0.0f;
  44   }
  45
  46   float durationSeconds = timePeriod.durationSeconds;
  47   if(durationSeconds < 0.0f)
  48   {
  49     DALI_LOG_WARNING("duration should be greater than 0.0f.\n");
  50     durationSeconds = 0.0f;
  51   }
  52
  53   SlideTransitionPtr slideTransition = new SlideTransition(control, direction, TimePeriod(delaySeconds, durationSeconds));
  54
  55   // Second-phase construction
  56   slideTransition->Initialize();
  57
  58   return slideTransition;
  59 }
  60
  61 SlideTransition::SlideTransition(Dali::Toolkit::Control control, const Vector2& direction, TimePeriod timePeriod)
  62 : TransitionBase(),
  63   mTargetControl(control),
  64   mDirection(direction)
  65 {
  66   SetTarget(control);
  67   SetTimePeriod(timePeriod);
  68 }
  69
  70 SlideTransition::~SlideTransition()
  71 {
  72 }
  73
  74 void SlideTransition::SetDirection(const Vector2& direction)
  75 {
  76   mDirection = direction;
  77   mDirection.Normalize();
  78 }
  79
  80 Vector2 SlideTransition::GetDirection() const
  81 {
  82   return mDirection;
  83 }
  84
  85 void SlideTransition::OnPlay()
  86 {
  87   Dali::Toolkit::Control targetControl = mTargetControl.GetHandle();
  88   if(!targetControl || !targetControl[Dali::Actor::Property::CONNECTED_TO_SCENE])
  89   {
  90     DALI_LOG_ERROR("The Control is not added on the window\n");
  91     return;
  92   }
  93
  94   Property::Map startPropertyMap;
  95   Property::Map finishPropertyMap;
  96
  97   Vector3 currentPosition = targetControl[Dali::Actor::Property::POSITION];
  98   Vector3 currentScale    = targetControl[Dali::Actor::Property::SCALE];
  99
 100   Vector3 size = targetControl[Dali::Actor::Property::SIZE];
 101   size *= currentScale;
 102
 103   Vector2 windowSize = DevelWindow::Get(targetControl).GetSize();
 104   // This checkPosition go outside of window(by following the direction), this targetControl will be out of window.
 105   Vector2 checkPosition = windowSize / 2.0f +
 106                           Vector2(currentPosition.x + ((mDirection.x < 0.0f) ? size.x / 2.0f : -size.x / 2.0f),
 107                                   currentPosition.y + ((mDirection.y < 0.0f) ? size.y / 2.0f : -size.y / 2.0f));
 108
 109   float xScale = (Dali::EqualsZero(mDirection.x)) ? std::numeric_limits<float>::max()
 110                                                   : ((mDirection.x < 0.0f) ? checkPosition.x : windowSize.x - checkPosition.x) / std::abs(mDirection.x);
 111   float yScale = (Dali::EqualsZero(mDirection.y)) ? std::numeric_limits<float>::max()
 112                                                   : ((mDirection.y < 0.0f) ? checkPosition.y : windowSize.y - checkPosition.y) / std::abs(mDirection.y);
 113
 114   Vector2 displacement = mDirection * std::min(xScale, yScale);
 115
 116   Vector3 startPosition;
 117   Vector3 finishPosition;
 118   if(IsAppearingTransition())
 119   {
 120     startPosition  = currentPosition + Vector3(displacement);
 121     finishPosition = currentPosition;
 122   }
 123   else
 124   {
 125     startPosition  = currentPosition;
 126     finishPosition = currentPosition + Vector3(displacement);
 127   }
 128
 129   startPropertyMap.Insert(Dali::Actor::Property::POSITION, startPosition);
 130   finishPropertyMap.Insert(Dali::Actor::Property::POSITION, finishPosition);
 131
 132   SetStartPropertyMap(startPropertyMap);
 133   SetFinishPropertyMap(finishPropertyMap);
 134 }
 135
 136 } // namespace Internal
 137
 138 } // namespace Toolkit
 139
 140 } // namespace Dali