private AnimatableTransform(AnimatablePathValue anchorPoint, IAnimatableValue <Vector2?, Vector2?> position, AnimatableScaleValue scale, AnimatableFloatValue rotation, AnimatableIntegerValue opacity, AnimatableFloatValue startOpacity, AnimatableFloatValue endOpacity)
{
AnchorPoint = anchorPoint;
Position = position;
Scale = scale;
Rotation = rotation;
Opacity = opacity;
StartOpacity = startOpacity;
EndOpacity = endOpacity;
}
internal static AnimatableTransform NewInstance(JsonObject json, LottieComposition composition)
{
AnimatablePathValue anchorPoint;
IAnimatableValue <Vector2?, Vector2?> position = null;
AnimatableScaleValue scale;
AnimatableFloatValue rotation = null;
AnimatableIntegerValue opacity;
AnimatableFloatValue startOpacity = null;
AnimatableFloatValue endOpacity = null;
var anchorJson = json.GetNamedObject("a", null);
if (anchorJson != null)
{
anchorPoint = new AnimatablePathValue(anchorJson["k"], composition);
}
else
{
// Cameras don't have an anchor point property. Although we don't support them, at least
// we won't crash.
Debug.WriteLine("Layer has no transform property. You may be using an unsupported " + "layer type such as a camera.", LottieLog.Tag);
anchorPoint = new AnimatablePathValue();
}
var positionJson = json.GetNamedObject("p", null);
if (positionJson != null)
{
position = AnimatablePathValue.CreateAnimatablePathOrSplitDimensionPath(positionJson, composition);
}
else
{
ThrowMissingTransform("position");
}
var scaleJson = json.GetNamedObject("s", null);
if (scaleJson != null)
{
scale = AnimatableScaleValue.Factory.NewInstance(scaleJson, composition);
}
else
{
// Repeaters have start/end opacity instead of opacity
scale = new AnimatableScaleValue(new List <IKeyframe <ScaleXy> >(), new ScaleXy());
}
var rotationJson = json.GetNamedObject("r", null);
if (rotationJson == null)
{
rotationJson = json.GetNamedObject("rz", null);
}
if (rotationJson != null)
{
rotation = AnimatableFloatValue.Factory.NewInstance(rotationJson, composition, false);
}
else
{
ThrowMissingTransform("rotation");
}
var opacityJson = json.GetNamedObject("o", null);
if (opacityJson != null)
{
opacity = AnimatableIntegerValue.Factory.NewInstance(opacityJson, composition);
}
else
{
// Somehow some community animations don't have opacity in the transform.
opacity = new AnimatableIntegerValue(new List <IKeyframe <int?> >(), 100);
}
var startOpacityJson = json.GetNamedObject("so", null);
if (startOpacityJson != null)
{
startOpacity = AnimatableFloatValue.Factory.NewInstance(startOpacityJson, composition, false);
}
var endOpacityJson = json.GetNamedObject("eo", null);
if (endOpacityJson != null)
{
endOpacity = AnimatableFloatValue.Factory.NewInstance(endOpacityJson, composition, false);
}
return(new AnimatableTransform(anchorPoint, position, scale, rotation, opacity, startOpacity, endOpacity));
}
