BlurKeyFrameManager.java

package at.favre.lib.dali.builder.animation;

import android.content.Context;
import android.graphics.Bitmap;

import java.util.ArrayList;
import java.util.List;

import at.favre.lib.dali.Dali;

/**
 * Created by PatrickF on 29.05.2014.
 */
public class BlurKeyFrameManager {

	public static BlurKeyFrameManager createLinearKeyFrames(int keyFrames,int duration, int inSampleSize, int endBlurRadius, int endBrightness) {
		BlurKeyFrameManager man = new BlurKeyFrameManager();

		int durationPerFrame = (int) ((float) duration / (float) keyFrames);
		int radiusIncrement = (int) ((float) endBlurRadius / (float) keyFrames);
		int brightnessIncrement = 0;
		if(endBrightness != 0) {
			brightnessIncrement = (int) ((float) endBrightness / (float) keyFrames);;
		}
		for (int i = 0; i < keyFrames; i++) {
			man.addKeyFrame(new BlurKeyFrame(inSampleSize,radiusIncrement*(i+1),brightnessIncrement*(i+1),durationPerFrame));
		}

		return man;
	}

	public static BlurKeyFrameManager createLowMemoryKeyframes(int keyFrames,int duration, int startInsampleSize, int endBlurRadius) {
		BlurKeyFrameManager man = new BlurKeyFrameManager();

		int durationPerFrame = (int) ((float) duration / (float) keyFrames);
		int radiusIncrement = (int) ((float) endBlurRadius / (float) keyFrames);
		for (int i = 0; i < keyFrames; i++) {
			man.addKeyFrame(new BlurKeyFrame(startInsampleSize,radiusIncrement*(i+1),0,durationPerFrame));
		}

		return man;
	}


	private List<BlurKeyFrame> keyFrames = new ArrayList<BlurKeyFrame>();

	public BlurKeyFrameManager() {
	}

	public void addKeyFrame(BlurKeyFrame frame) {
		keyFrames.add(frame);
	}

	protected KeyFrameData prepareFrames(Context ctx, Bitmap original) {
		return new KeyFrameData(ctx, original, keyFrames);
	}

	public List<BlurKeyFrame> getKeyFrames() {
		return keyFrames;
	}

	public static class KeyFrameData {
		private Bitmap original;
		private List<Bitmap> frames = new ArrayList<Bitmap>();
		private List<BlurKeyFrame> keyFrameConfigList;

		public KeyFrameData(Context ctx, Bitmap original,List<BlurKeyFrame> keyFrames) {
			this.original = original;
			this.keyFrameConfigList = keyFrames;

			Dali dali = Dali.create(ctx);
			frames.add(original);
			for (BlurKeyFrame keyFrame : keyFrames) {
				frames.add(keyFrame.prepareFrame(original,dali));
			}
		}

		public List<BlurKeyFrame> getKeyFrameConfigList() {
			return keyFrameConfigList;
		}

		public List<Bitmap> getFrames() {
			return frames;
		}

		public Bitmap getOriginal() {
			return original;
		}
	}

	@Override
	public String toString() {
		return keyFrames.toString();
	}
}