plugins/dali-swig/examples/firstscreen/FocusEffect.cs

   1 using Dali;
   2 using System;
   3 using System.Collections.Generic;
   4
   5 namespace FirstScreen
   6 {
   7     public class FocusEffect : IFocusEffect
   8     {
   9         private float _frameThickness;
  10         private FocusData[] _focusData; // Each FocusData is used for one key frame animation (total 6 key frame animations needed for EddenEffect)
  11         private Animation _animation;   // Animation used to apply all six key frame animations
  12
  13         public FocusEffect()
  14         {
  15             _frameThickness = 10.0f;
  16             float _bottomFrameTime = 0.6f; // complete the halo/bottom animation 60% of the way through
  17             float _sideFrameTime = 0.8f;   // Start the side frame  animation after the bottom animation and complete at 80% of the way through
  18             float _topFrameTime = 1.0f;    // start the top frame animation after the side frame animation and complete at 100% way through
  19
  20             // Six key frame animations (FocusData objects) needed for EddenEffect
  21             // Two key frame animations for top horizontal effect
  22             // Two key frame animations for bottom horizontal effect
  23             // Two key frame animations for vertical horizontal effect
  24             _focusData = new FocusData[6];
  25
  26             FocusData focusData = new FocusData("halo", "halo.png", FocusData.Direction.Horizontal, NDalic.ParentOriginTopCenter,
  27                                                 new Vector3(50,20,0),  new Vector3(0.0f, 100.0f , 0.0f), 0.0f, _bottomFrameTime);
  28             _focusData[0] = focusData;
  29
  30             focusData = new FocusData("bottom", "horizontalFrame.png", FocusData.Direction.Horizontal, NDalic.ParentOriginTopCenter,
  31                                       new Vector3(0.0f, 0.0f, 0.0f),  new Vector3(0.0f, _frameThickness, 0.0f), 0.0f, _bottomFrameTime);
  32             _focusData[1] = focusData;
  33
  34             focusData = new FocusData("left", "verticalFrame.png", FocusData.Direction.Vertical, NDalic.ParentOriginBottomLeft,
  35                                       new Vector3(0.0f, 0.0f, 0.0f),  new Vector3(_frameThickness, 0.0f, 0.0f), _bottomFrameTime, _sideFrameTime);
  36             _focusData[2] = focusData;
  37
  38             focusData = new FocusData("right", "verticalFrame.png", FocusData.Direction.Vertical, NDalic.ParentOriginBottomRight,
  39                                       new Vector3(0.0f, 0.0f, 0.0f),  new Vector3(_frameThickness, 0.0f, 0.0f), _bottomFrameTime, _sideFrameTime);
  40             _focusData[3] = focusData;
  41
  42             focusData = new FocusData("top-left", "horizontalFrame.png", FocusData.Direction.Horizontal, NDalic.ParentOriginBottomLeft,
  43                                       new Vector3(0.0f, 0.0f, 0.0f),  new Vector3(0.0f ,_frameThickness, 0.0f), _sideFrameTime, _topFrameTime);
  44             _focusData[4] = focusData;
  45
  46             focusData = new FocusData("top-right", "horizontalFrame.png", FocusData.Direction.Horizontal, NDalic.ParentOriginBottomRight,
  47                                       new Vector3(0.0f, 0.0f, 0.0f),  new Vector3(0.0f, _frameThickness, 0.0f), _sideFrameTime, _topFrameTime);
  48             _focusData[5] = focusData;
  49         }
  50
  51         public void FocusAnimation(View parentItem, Vector3 itemSize, float duration, FocusEffectDirection direction)
  52         {
  53             var itemWidth = itemSize.x + _frameThickness / 2;
  54             var itemHeight = itemSize.y + _frameThickness / 3;
  55
  56             if (_animation)
  57             {
  58                 _animation.Clear();
  59                 _animation.Reset();
  60             }
  61             _animation = new Animation(duration);
  62
  63             if (direction == FocusEffectDirection.BottomToTop)
  64             {
  65                 _focusData[0].ParentOrigin = NDalic.ParentOriginBottomCenter;
  66                 _focusData[1].ParentOrigin = NDalic.ParentOriginBottomCenter;
  67                 _focusData[2].ParentOrigin = NDalic.ParentOriginBottomLeft;
  68                 _focusData[3].ParentOrigin = NDalic.ParentOriginBottomRight;
  69                 _focusData[4].ParentOrigin = NDalic.ParentOriginTopLeft;
  70                 _focusData[5].ParentOrigin = NDalic.ParentOriginTopRight;
  71             }
  72             else
  73             {
  74                 _focusData[0].ParentOrigin = NDalic.ParentOriginTopCenter;
  75                 _focusData[1].ParentOrigin = NDalic.ParentOriginTopCenter;
  76                 _focusData[2].ParentOrigin = NDalic.ParentOriginBottomLeft;
  77                 _focusData[3].ParentOrigin = NDalic.ParentOriginBottomRight;
  78                 _focusData[4].ParentOrigin = NDalic.ParentOriginBottomLeft;
  79                 _focusData[5].ParentOrigin = NDalic.ParentOriginBottomRight;
  80             }
  81
  82             foreach (FocusData focusData in _focusData)
  83             {
  84                 var currentParent =  focusData.ImageItem.GetParent();
  85
  86                 // first parent the controls
  87                 if (parentItem != currentParent)
  88                 {
  89                     parentItem.Add(focusData.ImageItem);
  90                 }
  91
  92                 focusData.ImageItem.Size = new Vector3(100.0f,100.0f, 0.0f);
  93                 parentItem.Add(focusData.ImageItem);
  94
  95                 Vector3 targetSize = focusData.TargetSize;
  96                 Vector3 initSize = focusData.InitSize;
  97
  98                 if (focusData.FocusDirection == FocusData.Direction.Horizontal)
  99                 {
 100                     // adjust the width to match the parent
 101                     targetSize.x = itemWidth;
 102                 }
 103                 else // vertical frame
 104                 {
 105                     // adjust the height to match the parent
 106                     targetSize.y = itemHeight;
 107                 }
 108
 109                 // half the size for the top frame as we come out from both left / right sides
 110                 if (focusData.Name == "top-right" ||  focusData.Name == "top-left")
 111                 {
 112                     targetSize.x = itemWidth - _frameThickness;
 113                 }
 114
 115                 KeyFrames keyFrames = new KeyFrames();
 116
 117                 keyFrames.Add(0.0f, new Property.Value(initSize));
 118                 keyFrames.Add(focusData.KeyFrameStart, new Property.Value(initSize));
 119                 keyFrames.Add(focusData.KeyFrameEnd, new Property.Value(targetSize));
 120
 121                 // for halo add an extra keyframe to shrink it ( in 20% of time after it has finished)
 122                 if (focusData.Name =="halo")
 123                 {
 124                     keyFrames.Add(focusData.KeyFrameEnd + 0.2f, new Property.Value(initSize));
 125                 }
 126
 127                 _animation.AnimateBetween(new Property(focusData.ImageItem, Actor.Property.SIZE), keyFrames,
 128                                           new AlphaFunction(AlphaFunction.BuiltinFunction.EASE_OUT_SINE));
 129
 130                 // Simulate the vertical frame growing from the top.
 131                 // Vertical items are anchored to the bottom of the parent... so when they grow
 132                 // we need to move them to the middle of the parent ( otherwise they stick out the bottom)
 133                 if (focusData.FocusDirection == FocusData.Direction.Vertical)
 134                 {
 135                     //animate position as well so it looks like animation is coming from bottom
 136                     KeyFrames keyFramesV = new KeyFrames();
 137
 138                     if (direction == FocusEffectDirection.BottomToTop)
 139                     {
 140                         keyFramesV.Add(0.0f, new Property.Value(0.0f));
 141                         keyFramesV.Add(focusData.KeyFrameStart, new Property.Value(0.0f));
 142                     }
 143                     else
 144                     {
 145                         keyFramesV.Add(0.0f, new Property.Value(-itemHeight));
 146                         keyFramesV.Add(focusData.KeyFrameStart, new Property.Value(-itemHeight));
 147                     }
 148
 149                     keyFramesV.Add(focusData.KeyFrameEnd, new Property.Value(-itemHeight / 2)); // animate to halfway up the control
 150
 151                     _animation.AnimateBetween(new Property(focusData.ImageItem, Actor.Property.POSITION_Y), keyFramesV,
 152                                               new AlphaFunction(AlphaFunction.BuiltinFunction.EASE_OUT_SINE));
 153                 }
 154
 155                 // Simulate the top frame growing from the sides.
 156                 if (focusData.Name == "top-left")
 157                 {
 158                     KeyFrames keyFramesTL = new KeyFrames();
 159
 160                     keyFramesTL.Add(0.0f, new Property.Value(0.0f));
 161                     keyFramesTL.Add(focusData.KeyFrameStart, new Property.Value(0.0f));
 162                     keyFramesTL.Add(focusData.KeyFrameEnd, new Property.Value(itemWidth / 2)); // animate to halfway up the control
 163
 164                     // grow these from the left or right
 165                     _animation.AnimateBetween(new Property(focusData.ImageItem, Actor.Property.POSITION_X), keyFramesTL,
 166                                               new AlphaFunction(AlphaFunction.BuiltinFunction.EASE_OUT_SINE));
 167                 }
 168
 169                 if (focusData.Name == "top-right")
 170                 {
 171                     KeyFrames keyFramesTR = new KeyFrames();
 172
 173                     keyFramesTR.Add(0.0f, new Property.Value(0.0f));
 174                     keyFramesTR.Add(focusData.KeyFrameStart, new Property.Value(0.0f));
 175                     keyFramesTR.Add(focusData.KeyFrameEnd, new Property.Value(-itemWidth / 2)); // animate to halfway up the control
 176
 177                     // grow these from the left or right
 178                     _animation.AnimateBetween(new Property(focusData.ImageItem, Actor.Property.POSITION_X), keyFramesTR,
 179                                               new AlphaFunction(AlphaFunction.BuiltinFunction.EASE_OUT_SINE));
 180                 }
 181
 182                 _animation.Finished += OnAnimationFinished;
 183
 184                 _animation.Play();
 185             }
 186         }
 187
 188         private void OnAnimationFinished(object source, Animation.FinishedEventArgs e)
 189         {
 190             foreach (FocusData focusData in _focusData)
 191             {
 192                 var currentParent =  focusData.ImageItem.GetParent();
 193
 194                 if (currentParent)
 195                 {
 196                     currentParent.Remove(focusData.ImageItem);
 197                 }
 198             }
 199         }
 200     }
 201 }