getAnimationTween method

MultiTween<AnimationProperty> getAnimationTween({ required Map<AnimationProperty, dynamic> initialValues, required double parentFontSize, required Size screenSize, })

Implementation

MultiTween<AnimationProperty> getAnimationTween(
    {required Map<AnimationProperty, dynamic> initialValues,
    required double parentFontSize,
    required Size screenSize}) {
  MultiTween<AnimationProperty> multiTween = MultiTween<AnimationProperty>();
  sequences.forEach((property, animationSequence) {
    var animations = animationSequence.data;
    dynamic begin, end;
    begin =
        initialValues[property] ?? animationPropertyDefaultInitMap[property];
    for (int index = 0; index < animations.length; index++) {
      Tween delayTween;
      Tween tween;
      switch (property) {
        case AnimationProperty.opacity:
          end = animations[index].value;
          delayTween = Tween(begin: begin, end: begin);
          tween = Tween(begin: begin, end: end);
          break;
        case AnimationProperty.alignment:
        case AnimationProperty.transformAlignment:
        case AnimationProperty.childAlignment:
          end = animations[index].value;
          delayTween = AlignmentTween(begin: begin, end: begin);
          tween = AlignmentTween(begin: begin, end: end);
          break;
        case AnimationProperty.width:
        case AnimationProperty.height:
          end = (animations[index].value as Dimension);
          delayTween = DimensionTween(begin: begin, end: begin);
          tween = DimensionTween(begin: begin, end: end);
          break;
        case AnimationProperty.margin:
        case AnimationProperty.padding:
          end = (animations[index].value as EdgeInsets);
          delayTween = EdgeInsetsTween(begin: begin, end: begin);
          tween = EdgeInsetsTween(begin: begin, end: end);
          break;
        case AnimationProperty.backgroundDecoration:
        case AnimationProperty.foregroundDecoration:
          end = animations[index].value;
          delayTween = DecorationTween(begin: begin, end: begin);
          tween = DecorationTween(begin: begin, end: end);
          break;
        case AnimationProperty.shadows:
        case AnimationProperty.insetShadows:
          end = (animations[index].value as List).cast<ShapeShadow>();
          delayTween = ListShapeShadowTween(begin: begin, end: begin);
          tween = ListShapeShadowTween(begin: begin, end: end);
          break;
        case AnimationProperty.shapeBorder:
          end = animations[index].value;
          delayTween = MorphableShapeBorderTween(begin: begin, end: begin);
          tween = MorphableShapeBorderTween(begin: begin, end: end);
          break;
        case AnimationProperty.transform:
          end = animations[index].value.toMatrix4(screenSize: screenSize);
          delayTween = Matrix4Tween(begin: begin, end: begin);
          tween = Matrix4Tween(begin: begin, end: end);
          break;
        case AnimationProperty.textStyle:
          end = (animations[index].value as DynamicTextStyle).toTextStyle(
              parentFontSize: parentFontSize, screenSize: screenSize);
          delayTween = TextStyleTween(begin: begin, end: begin);
          tween = TextStyleTween(begin: begin, end: end);
          break;
      }
      if (animations[index].delay.inMilliseconds > 0) {
        multiTween.add(property, delayTween, animations[index].delay);
      }
      multiTween.add(property, tween, animations[index].duration,
          animations[index].curve);
      begin = end;
    }
  });
  return multiTween;
}