internal static RectangleShape Parse(JsonReader reader, LottieComposition composition)
{
string name = null;
IAnimatableValue <Vector2?, Vector2?> position = null;
AnimatablePointValue size = null;
AnimatableFloatValue roundedness = null;
while (reader.HasNext())
{
switch (reader.NextName())
{
case "nm":
name = reader.NextString();
break;
case "p":
position = AnimatablePathValueParser.ParseSplitPath(reader, composition);
break;
case "s":
size = AnimatableValueParser.ParsePoint(reader, composition);
break;
case "r":
roundedness = AnimatableValueParser.ParseFloat(reader, composition);
break;
default:
reader.SkipValue();
break;
}
}
return(new RectangleShape(name, position, size, roundedness));
}
internal static Repeater Parse(JsonReader reader, LottieComposition composition)
{
string name = null;
AnimatableFloatValue copies = null;
AnimatableFloatValue offset = null;
AnimatableTransform transform = null;
while (reader.HasNext())
{
switch (reader.NextName())
{
case "nm":
name = reader.NextString();
break;
case "c":
copies = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "o":
offset = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "tr":
transform = AnimatableTransformParser.Parse(reader, composition);
break;
default:
reader.SkipValue();
break;
}
}
return(new Repeater(name, copies, offset, transform));
}
/// <summary>
/// Returns either an <see cref="AnimatablePathValue"/> or an <see cref="AnimatableSplitDimensionPathValue"/>.
/// </summary>
/// <param name="reader"></param>
/// <param name="composition"></param>
/// <returns></returns>
internal static IAnimatableValue <Vector2?, Vector2?> ParseSplitPath(JsonReader reader, LottieComposition composition)
{
AnimatablePathValue pathAnimation = null;
AnimatableFloatValue xAnimation = null;
AnimatableFloatValue yAnimation = null;
bool hasExpressions = false;
reader.BeginObject();
while (reader.Peek() != JsonToken.EndObject)
{
switch (reader.NextName())
{
case "k":
pathAnimation = Parse(reader, composition);
break;
case "x":
if (reader.Peek() == JsonToken.String)
{
hasExpressions = true;
reader.SkipValue();
}
else
{
xAnimation = AnimatableValueParser.ParseFloat(reader, composition);
}
break;
case "y":
if (reader.Peek() == JsonToken.String)
{
hasExpressions = true;
reader.SkipValue();
}
else
{
yAnimation = AnimatableValueParser.ParseFloat(reader, composition);
}
break;
default:
reader.SkipValue();
break;
}
}
reader.EndObject();
if (hasExpressions)
{
composition.AddWarning("Lottie doesn't support expressions.");
}
if (pathAnimation != null)
{
return(pathAnimation);
}
return(new AnimatableSplitDimensionPathValue(xAnimation, yAnimation));
}
internal static ShapeTrimPath Parse(JsonReader reader, LottieComposition composition)
{
string name = null;
ShapeTrimPath.Type type = ShapeTrimPath.Type.Simultaneously;
AnimatableFloatValue start = null;
AnimatableFloatValue end = null;
AnimatableFloatValue offset = null;
bool hidden = false;
while (reader.HasNext())
{
switch (reader.NextName())
{
case "s":
start = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "e":
end = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "o":
offset = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "nm":
name = reader.NextString();
break;
case "m":
type = (ShapeTrimPath.Type)reader.NextInt();
break;
case "hd":
hidden = reader.NextBoolean();
break;
default:
reader.SkipValue();
break;
}
}
return(new ShapeTrimPath(name, type, start, end, offset, hidden));
}
private static AnimatableTextProperties ParseAnimatableTextProperties(JsonReader reader,
LottieComposition composition)
{
AnimatableColorValue color = null;
AnimatableColorValue stroke = null;
AnimatableFloatValue strokeWidth = null;
AnimatableFloatValue tracking = null;
reader.BeginObject();
while (reader.HasNext())
{
switch (reader.NextName())
{
case "fc":
color = AnimatableValueParser.ParseColor(reader, composition);
break;
case "sc":
stroke = AnimatableValueParser.ParseColor(reader, composition);
break;
case "sw":
strokeWidth = AnimatableValueParser.ParseFloat(reader, composition);
break;
case "t":
tracking = AnimatableValueParser.ParseFloat(reader, composition);
break;
default:
reader.SkipValue();
break;
}
}
reader.EndObject();
return(new AnimatableTextProperties(color, stroke, strokeWidth, tracking));
}
internal static ShapeStroke Parse(JsonReader reader, LottieComposition composition)
{
string name = null;
AnimatableColorValue color = null;
AnimatableFloatValue width = null;
AnimatableIntegerValue opacity = null;
ShapeStroke.LineCapType capType = ShapeStroke.LineCapType.Unknown;
ShapeStroke.LineJoinType joinType = ShapeStroke.LineJoinType.Round;
AnimatableFloatValue offset = null;
float miterLimit = 0f;
List <AnimatableFloatValue> lineDashPattern = new List <AnimatableFloatValue>();
bool hidden = false;
while (reader.HasNext())
{
switch (reader.NextName())
{
case "nm":
name = reader.NextString();
break;
case "c":
color = AnimatableValueParser.ParseColor(reader, composition);
break;
case "w":
width = AnimatableValueParser.ParseFloat(reader, composition);
break;
case "o":
opacity = AnimatableValueParser.ParseInteger(reader, composition);
break;
case "lc":
capType = (ShapeStroke.LineCapType)(reader.NextInt() - 1);
break;
case "lj":
joinType = (ShapeStroke.LineJoinType)(reader.NextInt() - 1);
break;
case "ml":
miterLimit = reader.NextDouble();
break;
case "d":
reader.BeginArray();
while (reader.HasNext())
{
String n = null;
AnimatableFloatValue val = null;
reader.BeginObject();
while (reader.HasNext())
{
switch (reader.NextName())
{
case "n":
n = reader.NextString();
break;
case "v":
val = AnimatableValueParser.ParseFloat(reader, composition);
break;
default:
reader.SkipValue();
break;
}
}
reader.EndObject();
switch (n)
{
case "o":
offset = val;
break;
case "d":
case "g":
lineDashPattern.Add(val);
break;
}
}
reader.EndArray();
if (lineDashPattern.Count == 1)
{
// If there is only 1 value then it is assumed to be equal parts on and off.
lineDashPattern.Add(lineDashPattern[0]);
}
break;
case "hd":
hidden = reader.NextBoolean();
break;
default:
reader.SkipValue();
break;
}
}
return(new ShapeStroke(name, offset, lineDashPattern, color, opacity, width, capType, joinType, miterLimit, hidden));
}
public static Layer Parse(JsonReader reader, LottieComposition composition)
{
string layerName = null;
Layer.LayerType layerType = Layer.LayerType.Unknown;
string refId = null;
long layerId = 0;
int solidWidth = 0;
int solidHeight = 0;
Color solidColor = Color.Transparent;
int preCompWidth = 0;
int preCompHeight = 0;
long parentId = -1;
float timeStretch = 1f;
float startFrame = 0f;
float inFrame = 0f;
float outFrame = 0f;
string cl = null;
Layer.MatteType matteType = Layer.MatteType.None;
AnimatableTransform transform = null;
AnimatableTextFrame text = null;
AnimatableTextProperties textProperties = null;
AnimatableFloatValue timeRemapping = null;
List <Mask> masks = new List <Mask>();
List <IContentModel> shapes = new List <IContentModel>();
reader.BeginObject();
while (reader.HasNext())
{
switch (reader.NextName())
{
case "nm":
layerName = reader.NextString();
break;
case "ind":
layerId = reader.NextInt();
break;
case "refId":
refId = reader.NextString();
break;
case "ty":
int layerTypeInt = reader.NextInt();
if (layerTypeInt < (int)Layer.LayerType.Unknown)
{
layerType = (Layer.LayerType)layerTypeInt;
}
else
{
layerType = Layer.LayerType.Unknown;
}
break;
case "parent":
parentId = reader.NextInt();
break;
case "sw":
solidWidth = (int)(reader.NextInt() * Utils.Utils.DpScale());
break;
case "sh":
solidHeight = (int)(reader.NextInt() * Utils.Utils.DpScale());
break;
case "sc":
solidColor = Utils.Utils.GetSolidColorBrush(reader.NextString());
break;
case "ks":
transform = AnimatableTransformParser.Parse(reader, composition);
break;
case "tt":
matteType = (Layer.MatteType)reader.NextInt();
break;
case "masksProperties":
reader.BeginArray();
while (reader.HasNext())
{
masks.Add(MaskParser.Parse(reader, composition));
}
reader.EndArray();
break;
case "shapes":
reader.BeginArray();
while (reader.HasNext())
{
var shape = ContentModelParser.Parse(reader, composition);
if (shape != null)
{
shapes.Add(shape);
}
}
reader.EndArray();
break;
case "t":
reader.BeginObject();
while (reader.HasNext())
{
switch (reader.NextName())
{
case "d":
text = AnimatableValueParser.ParseDocumentData(reader, composition);
break;
case "a":
reader.BeginArray();
if (reader.HasNext())
{
textProperties = AnimatableTextPropertiesParser.Parse(reader, composition);
}
while (reader.HasNext())
{
reader.SkipValue();
}
reader.EndArray();
break;
default:
reader.SkipValue();
break;
}
}
reader.EndObject();
break;
case "ef":
reader.BeginArray();
List <string> effectNames = new List <string>();
while (reader.HasNext())
{
reader.BeginObject();
while (reader.HasNext())
{
switch (reader.NextName())
{
case "nm":
effectNames.Add(reader.NextString());
break;
default:
reader.SkipValue();
break;
}
}
reader.EndObject();
}
reader.EndArray();
composition.AddWarning("Lottie doesn't support layer effects. If you are using them for " +
" fills, strokes, trim paths etc. then try adding them directly as contents " +
" in your shape. Found: " + effectNames);
break;
case "sr":
timeStretch = reader.NextDouble();
break;
case "st":
startFrame = reader.NextDouble();
break;
case "w":
preCompWidth = (int)(reader.NextInt() * Utils.Utils.DpScale());
break;
case "h":
preCompHeight = (int)(reader.NextInt() * Utils.Utils.DpScale());
break;
case "ip":
inFrame = reader.NextDouble();
break;
case "op":
outFrame = reader.NextDouble();
break;
case "tm":
timeRemapping = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "cl":
cl = reader.NextString();
break;
default:
reader.SkipValue();
break;
}
}
reader.EndObject();
// Bodymovin pre-scales the in frame and out frame by the time stretch. However, that will
// cause the stretch to be double counted since the in out animation gets treated the same
// as all other animations and will have stretch applied to it again.
inFrame /= timeStretch;
outFrame /= timeStretch;
List <Keyframe <float?> > inOutKeyframes = new List <Keyframe <float?> >();
// Before the in frame
if (inFrame > 0)
{
Keyframe <float?> preKeyframe = new Keyframe <float?>(composition, 0f, 0f, null, 0f, inFrame);
inOutKeyframes.Add(preKeyframe);
}
// The + 1 is because the animation should be visible on the out frame itself.
outFrame = (outFrame > 0 ? outFrame : composition.EndFrame);
Keyframe <float?> visibleKeyframe = new Keyframe <float?>(composition, 1f, 1f, null, inFrame, outFrame);
inOutKeyframes.Add(visibleKeyframe);
Keyframe <float?> outKeyframe = new Keyframe <float?>(composition, 0f, 0f, null, outFrame, float.MaxValue);
inOutKeyframes.Add(outKeyframe);
if (layerName.EndsWith(".ai") || "ai".Equals(cl))
{
composition.AddWarning("Convert your Illustrator layers to shape layers.");
}
return(new Layer(shapes, composition, layerName, layerId, layerType, parentId, refId, masks, transform, solidWidth, solidHeight, solidColor, timeStretch, startFrame, preCompWidth, preCompHeight, text, textProperties, inOutKeyframes, matteType, timeRemapping));
}
internal static PolystarShape Parse(JsonReader reader, LottieComposition composition)
{
string name = null;
PolystarShape.Type type = PolystarShape.Type.Polygon;
AnimatableFloatValue points = null;
IAnimatableValue <Vector2?, Vector2?> position = null;
AnimatableFloatValue rotation = null;
AnimatableFloatValue outerRadius = null;
AnimatableFloatValue outerRoundedness = null;
AnimatableFloatValue innerRadius = null;
AnimatableFloatValue innerRoundedness = null;
while (reader.HasNext())
{
switch (reader.NextName())
{
case "nm":
name = reader.NextString();
break;
case "sy":
type = (PolystarShape.Type)reader.NextInt();
break;
case "pt":
points = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "p":
position = AnimatablePathValueParser.ParseSplitPath(reader, composition);
break;
case "r":
rotation = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "or":
outerRadius = AnimatableValueParser.ParseFloat(reader, composition);
break;
case "os":
outerRoundedness = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "ir":
innerRadius = AnimatableValueParser.ParseFloat(reader, composition);
break;
case "is":
innerRoundedness = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
default:
reader.SkipValue();
break;
}
}
return(new PolystarShape(name, type, points, position, rotation, innerRadius, outerRadius, innerRoundedness, outerRoundedness));
}
internal static GradientStroke Parse(JsonReader reader, LottieComposition composition)
{
string name = null;
AnimatableGradientColorValue color = null;
AnimatableIntegerValue opacity = null;
var gradientType = GradientType.Linear;
AnimatablePointValue startPoint = null;
AnimatablePointValue endPoint = null;
AnimatableFloatValue width = null;
var capType = ShapeStroke.LineCapType.Unknown;
var joinType = ShapeStroke.LineJoinType.Round;
AnimatableFloatValue offset = null;
var miterLimit = 0f;
var lineDashPattern = new List <AnimatableFloatValue>();
while (reader.HasNext())
{
switch (reader.NextName())
{
case "nm":
name = reader.NextString();
break;
case "g":
var points = -1;
reader.BeginObject();
while (reader.HasNext())
{
switch (reader.NextName())
{
case "p":
points = reader.NextInt();
break;
case "k":
color = AnimatableValueParser.ParseGradientColor(reader, composition, points);
break;
default:
reader.SkipValue();
break;
}
}
reader.EndObject();
break;
case "o":
opacity = AnimatableValueParser.ParseInteger(reader, composition);
break;
case "t":
gradientType = reader.NextInt() == 1 ? GradientType.Linear : GradientType.Radial;
break;
case "s":
startPoint = AnimatableValueParser.ParsePoint(reader, composition);
break;
case "e":
endPoint = AnimatableValueParser.ParsePoint(reader, composition);
break;
case "w":
width = AnimatableValueParser.ParseFloat(reader, composition);
break;
case "lc":
capType = (ShapeStroke.LineCapType)(reader.NextInt() - 1);
break;
case "lj":
joinType = (ShapeStroke.LineJoinType)(reader.NextInt() - 1);
break;
case "ml":
miterLimit = reader.NextDouble();
break;
case "d":
reader.BeginArray();
while (reader.HasNext())
{
string n = null;
AnimatableFloatValue val = null;
reader.BeginObject();
while (reader.HasNext())
{
switch (reader.NextName())
{
case "n":
n = reader.NextString();
break;
case "v":
val = AnimatableValueParser.ParseFloat(reader, composition);
break;
default:
reader.SkipValue();
break;
}
}
reader.EndObject();
if (n.Equals("o"))
{
offset = val;
}
else if (n.Equals("d") || n.Equals("g"))
{
lineDashPattern.Add(val);
}
}
reader.EndArray();
if (lineDashPattern.Count == 1)
{
// If there is only 1 value then it is assumed to be equal parts on and off.
lineDashPattern.Add(lineDashPattern[0]);
}
break;
default:
reader.SkipValue();
break;
}
}
return(new GradientStroke(
name, gradientType, color, opacity, startPoint, endPoint, width, capType, joinType,
miterLimit, lineDashPattern, offset));
}
public static AnimatableTransform Parse(JsonReader reader, LottieComposition composition)
{
AnimatablePathValue anchorPoint = null;
IAnimatableValue <Vector2?, Vector2?> position = null;
AnimatableScaleValue scale = null;
AnimatableFloatValue rotation = null;
AnimatableIntegerValue opacity = null;
AnimatableFloatValue startOpacity = null;
AnimatableFloatValue endOpacity = null;
bool isObject = reader.Peek() == JsonToken.StartObject;
if (isObject)
{
reader.BeginObject();
}
while (reader.HasNext())
{
switch (reader.NextName())
{
case "a":
reader.BeginObject();
while (reader.HasNext())
{
if (reader.NextName().Equals("k"))
{
anchorPoint = AnimatablePathValueParser.Parse(reader, composition);
}
else
{
reader.SkipValue();
}
}
reader.EndObject();
break;
case "p":
position = AnimatablePathValueParser.ParseSplitPath(reader, composition);
break;
case "s":
scale = AnimatableValueParser.ParseScale(reader, composition);
break;
case "rz":
composition.AddWarning("Lottie doesn't support 3D layers.");
rotation = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "r":
rotation = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "o":
opacity = AnimatableValueParser.ParseInteger(reader, composition);
break;
case "so":
startOpacity = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
case "eo":
endOpacity = AnimatableValueParser.ParseFloat(reader, composition, false);
break;
default:
reader.SkipValue();
break;
}
}
if (isObject)
{
reader.EndObject();
}
if (anchorPoint == null)
{
// 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();
}
if (scale == null)
{
// Somehow some community animations don't have scale in the transform.
scale = new AnimatableScaleValue(new ScaleXy(1f, 1f));
}
if (opacity == null)
{
// Repeaters have start/end opacity instead of opacity
opacity = new AnimatableIntegerValue();
}
return(new AnimatableTransform(
anchorPoint, position, scale, rotation, opacity, startOpacity, endOpacity));
}