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