| package com.airbnb.lottie.parser; |
| |
| import android.graphics.PointF; |
| |
| import com.airbnb.lottie.LottieComposition; |
| import com.airbnb.lottie.model.animatable.AnimatableFloatValue; |
| import com.airbnb.lottie.model.animatable.AnimatablePathValue; |
| import com.airbnb.lottie.model.animatable.AnimatableSplitDimensionPathValue; |
| import com.airbnb.lottie.model.animatable.AnimatableValue; |
| import com.airbnb.lottie.parser.moshi.JsonReader; |
| import com.airbnb.lottie.utils.Utils; |
| import com.airbnb.lottie.value.Keyframe; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class AnimatablePathValueParser { |
| |
| private static final JsonReader.Options NAMES = JsonReader.Options.of( |
| "k", |
| "x", |
| "y" |
| ); |
| |
| private AnimatablePathValueParser() { |
| } |
| |
| public static AnimatablePathValue parse( |
| JsonReader reader, LottieComposition composition) throws IOException { |
| List<Keyframe<PointF>> keyframes = new ArrayList<>(); |
| if (reader.peek() == JsonReader.Token.BEGIN_ARRAY) { |
| reader.beginArray(); |
| while (reader.hasNext()) { |
| keyframes.add(PathKeyframeParser.parse(reader, composition)); |
| } |
| reader.endArray(); |
| KeyframesParser.setEndFrames(keyframes); |
| } else { |
| keyframes.add(new Keyframe<>(JsonUtils.jsonToPoint(reader, Utils.dpScale()))); |
| } |
| return new AnimatablePathValue(keyframes); |
| } |
| |
| /** |
| * Returns either an {@link AnimatablePathValue} or an {@link AnimatableSplitDimensionPathValue}. |
| */ |
| static AnimatableValue<PointF, PointF> parseSplitPath( |
| JsonReader reader, LottieComposition composition) throws IOException { |
| |
| AnimatablePathValue pathAnimation = null; |
| AnimatableFloatValue xAnimation = null; |
| AnimatableFloatValue yAnimation = null; |
| |
| boolean hasExpressions = false; |
| |
| reader.beginObject(); |
| while (reader.peek() != JsonReader.Token.END_OBJECT) { |
| switch (reader.selectName(NAMES)) { |
| case 0: |
| pathAnimation = AnimatablePathValueParser.parse(reader, composition); |
| break; |
| case 1: |
| if (reader.peek() == JsonReader.Token.STRING) { |
| hasExpressions = true; |
| reader.skipValue(); |
| } else { |
| xAnimation = AnimatableValueParser.parseFloat(reader, composition); |
| } |
| break; |
| case 2: |
| if (reader.peek() == JsonReader.Token.STRING) { |
| hasExpressions = true; |
| reader.skipValue(); |
| } else { |
| yAnimation = AnimatableValueParser.parseFloat(reader, composition); |
| } |
| break; |
| default: |
| reader.skipName(); |
| reader.skipValue(); |
| } |
| } |
| reader.endObject(); |
| |
| if (hasExpressions) { |
| composition.addWarning("Lottie doesn't support expressions."); |
| } |
| |
| if (pathAnimation != null) { |
| return pathAnimation; |
| } |
| return new AnimatableSplitDimensionPathValue(xAnimation, yAnimation); |
| } |
| |
| } |