| package com.airbnb.lottie.parser; |
| |
| import android.graphics.PointF; |
| import android.util.JsonReader; |
| import android.util.JsonToken; |
| import android.util.Log; |
| |
| import com.airbnb.lottie.L; |
| import com.airbnb.lottie.LottieComposition; |
| import com.airbnb.lottie.model.animatable.AnimatableFloatValue; |
| import com.airbnb.lottie.model.animatable.AnimatableIntegerValue; |
| import com.airbnb.lottie.model.animatable.AnimatablePathValue; |
| import com.airbnb.lottie.model.animatable.AnimatableScaleValue; |
| import com.airbnb.lottie.model.animatable.AnimatableTransform; |
| import com.airbnb.lottie.model.animatable.AnimatableValue; |
| import com.airbnb.lottie.value.ScaleXY; |
| |
| import java.io.IOException; |
| |
| public class AnimatableTransformParser { |
| |
| private AnimatableTransformParser() {} |
| |
| public static AnimatableTransform parse( |
| JsonReader reader, LottieComposition composition) throws IOException { |
| AnimatablePathValue anchorPoint = null; |
| AnimatableValue<PointF, PointF> position = null; |
| AnimatableScaleValue scale = null; |
| AnimatableFloatValue rotation = null; |
| AnimatableIntegerValue opacity = null; |
| AnimatableFloatValue startOpacity = null; |
| AnimatableFloatValue endOpacity = null; |
| |
| boolean isObject = reader.peek() == JsonToken.BEGIN_OBJECT; |
| 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."); |
| 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(); |
| } |
| } |
| 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. |
| Log.w(L.TAG, "Layer has no transform property. You may be using an unsupported " + |
| "layer type such as a camera."); |
| 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); |
| } |
| |
| } |