| package com.airbnb.lottie.model.animatable; |
| |
| import android.graphics.PointF; |
| import android.support.annotation.Nullable; |
| 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.LottieDrawable; |
| import com.airbnb.lottie.animation.content.Content; |
| import com.airbnb.lottie.animation.content.ModifierContent; |
| import com.airbnb.lottie.animation.keyframe.TransformKeyframeAnimation; |
| import com.airbnb.lottie.model.content.ContentModel; |
| import com.airbnb.lottie.model.layer.BaseLayer; |
| import com.airbnb.lottie.value.ScaleXY; |
| |
| import java.io.IOException; |
| |
| public class AnimatableTransform implements ModifierContent, ContentModel { |
| private final AnimatablePathValue anchorPoint; |
| private final AnimatableValue<PointF, PointF> position; |
| private final AnimatableScaleValue scale; |
| private final AnimatableFloatValue rotation; |
| private final AnimatableIntegerValue opacity; |
| |
| // Used for repeaters |
| @Nullable private final AnimatableFloatValue startOpacity; |
| @Nullable private final AnimatableFloatValue endOpacity; |
| |
| private AnimatableTransform(AnimatablePathValue anchorPoint, |
| AnimatableValue<PointF, PointF> position, AnimatableScaleValue scale, |
| AnimatableFloatValue rotation, AnimatableIntegerValue opacity, |
| @Nullable AnimatableFloatValue startOpacity, @Nullable AnimatableFloatValue endOpacity) { |
| this.anchorPoint = anchorPoint; |
| this.position = position; |
| this.scale = scale; |
| this.rotation = rotation; |
| this.opacity = opacity; |
| this.startOpacity = startOpacity; |
| this.endOpacity = endOpacity; |
| } |
| |
| public AnimatablePathValue getAnchorPoint() { |
| return anchorPoint; |
| } |
| |
| public AnimatableValue<PointF, PointF> getPosition() { |
| return position; |
| } |
| |
| public AnimatableScaleValue getScale() { |
| return scale; |
| } |
| |
| public AnimatableFloatValue getRotation() { |
| return rotation; |
| } |
| |
| public AnimatableIntegerValue getOpacity() { |
| return opacity; |
| } |
| |
| @Nullable public AnimatableFloatValue getStartOpacity() { |
| return startOpacity; |
| } |
| |
| @Nullable public AnimatableFloatValue getEndOpacity() { |
| return endOpacity; |
| } |
| |
| public TransformKeyframeAnimation createAnimation() { |
| return new TransformKeyframeAnimation(this); |
| } |
| |
| @Nullable @Override public Content toContent(LottieDrawable drawable, BaseLayer layer) { |
| return null; |
| } |
| |
| public static class Factory { |
| private Factory() { |
| } |
| |
| public static AnimatableTransform newInstance() { |
| AnimatablePathValue anchorPoint = new AnimatablePathValue(); |
| AnimatableValue<PointF, PointF> position = new AnimatablePathValue(); |
| AnimatableScaleValue scale = AnimatableScaleValue.Factory.newInstance(); |
| AnimatableFloatValue rotation = AnimatableFloatValue.Factory.newInstance(); |
| AnimatableIntegerValue opacity = AnimatableIntegerValue.Factory.newInstance(); |
| AnimatableFloatValue startOpacity = AnimatableFloatValue.Factory.newInstance(); |
| AnimatableFloatValue endOpacity = AnimatableFloatValue.Factory.newInstance(); |
| return new AnimatableTransform(anchorPoint, position, scale, rotation, opacity, startOpacity, |
| endOpacity); |
| } |
| |
| public static AnimatableTransform newInstance( |
| 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 = new AnimatablePathValue(reader, composition); |
| } else { |
| reader.skipValue(); |
| } |
| } |
| reader.endObject(); |
| break; |
| case "p": |
| position = |
| AnimatablePathValue.createAnimatablePathOrSplitDimensionPath(reader, composition); |
| break; |
| case "s": |
| scale = AnimatableScaleValue.Factory.newInstance(reader, composition); |
| break; |
| case "rz": |
| composition.addWarning("Lottie doesn't support 3D layers."); |
| case "r": |
| rotation = AnimatableFloatValue.Factory.newInstance(reader, composition, false); |
| break; |
| case "o": |
| opacity = AnimatableIntegerValue.Factory.newInstance(reader, composition); |
| break; |
| case "so": |
| startOpacity = |
| AnimatableFloatValue.Factory.newInstance(reader, composition, false); |
| break; |
| case "eo": |
| endOpacity = |
| AnimatableFloatValue.Factory.newInstance(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(100); |
| } |
| |
| return new AnimatableTransform( |
| anchorPoint, position, scale, rotation, opacity, startOpacity, endOpacity); |
| } |
| } |
| } |