The Tor Browser: mobile/android/thirdparty/com/squareup/picasso/PicassoDrawable.java@6474c204b198 (annotated)

mobile/android/thirdparty/com/squareup/picasso/PicassoDrawable.java@6474c204b198 (annotated)

mobile/android/thirdparty/com/squareup/picasso/PicassoDrawable.java

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /*
  * Copyright (C) 2013 Square, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package com.squareup.picasso;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.ColorFilter;
 import android.graphics.Paint;
 import android.graphics.Path;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.drawable.AnimationDrawable;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.os.SystemClock;
 import android.widget.ImageView;
 import static android.graphics.Color.WHITE;
 import static com.squareup.picasso.Picasso.LoadedFrom.MEMORY;
 final class PicassoDrawable extends Drawable {
   // Only accessed from main thread.
   private static final Paint DEBUG_PAINT = new Paint();
   private static final float FADE_DURATION = 200f; //ms
   /**
    * Create or update the drawable on the target {@link ImageView} to display the supplied bitmap
    * image.
    */
   static void setBitmap(ImageView target, Context context, Bitmap bitmap,
       Picasso.LoadedFrom loadedFrom, boolean noFade, boolean debugging) {
     Drawable placeholder = target.getDrawable();
     if (placeholder instanceof AnimationDrawable) {
       ((AnimationDrawable) placeholder).stop();
     }
     PicassoDrawable drawable =
         new PicassoDrawable(context, placeholder, bitmap, loadedFrom, noFade, debugging);
     target.setImageDrawable(drawable);
   }
   /**
    * Create or update the drawable on the target {@link ImageView} to display the supplied
    * placeholder image.
    */
   static void setPlaceholder(ImageView target, int placeholderResId, Drawable placeholderDrawable) {
     if (placeholderResId != 0) {
       target.setImageResource(placeholderResId);
     } else {
       target.setImageDrawable(placeholderDrawable);
     }
     if (target.getDrawable() instanceof AnimationDrawable) {
       ((AnimationDrawable) target.getDrawable()).start();
     }
   }
   private final boolean debugging;
   private final float density;
   private final Picasso.LoadedFrom loadedFrom;
   final BitmapDrawable image;
   Drawable placeholder;
   long startTimeMillis;
   boolean animating;
   int alpha = 0xFF;
   PicassoDrawable(Context context, Drawable placeholder, Bitmap bitmap,
       Picasso.LoadedFrom loadedFrom, boolean noFade, boolean debugging) {
     Resources res = context.getResources();
     this.debugging = debugging;
     this.density = res.getDisplayMetrics().density;
     this.loadedFrom = loadedFrom;
     this.image = new BitmapDrawable(res, bitmap);
     boolean fade = loadedFrom != MEMORY && !noFade;
     if (fade) {
       this.placeholder = placeholder;
       animating = true;
       startTimeMillis = SystemClock.uptimeMillis();
     }
   }
   @Override public void draw(Canvas canvas) {
     if (!animating) {
       image.draw(canvas);
     } else {
       float normalized = (SystemClock.uptimeMillis() - startTimeMillis) / FADE_DURATION;
       if (normalized >= 1f) {
         animating = false;
         placeholder = null;
         image.draw(canvas);
       } else {
         if (placeholder != null) {
           placeholder.draw(canvas);
         }
         int partialAlpha = (int) (alpha * normalized);
         image.setAlpha(partialAlpha);
         image.draw(canvas);
         image.setAlpha(alpha);
         invalidateSelf();
       }
     }
     if (debugging) {
       drawDebugIndicator(canvas);
     }
   }
   @Override public int getIntrinsicWidth() {
     return image.getIntrinsicWidth();
   }
   @Override public int getIntrinsicHeight() {
     return image.getIntrinsicHeight();
   }
   @Override public void setAlpha(int alpha) {
     this.alpha = alpha;
     if (placeholder != null) {
       placeholder.setAlpha(alpha);
     }
     image.setAlpha(alpha);
   }
   @Override public void setColorFilter(ColorFilter cf) {
     if (placeholder != null) {
       placeholder.setColorFilter(cf);
     }
     image.setColorFilter(cf);
   }
   @Override public int getOpacity() {
     return image.getOpacity();
   }
   @Override protected void onBoundsChange(Rect bounds) {
     super.onBoundsChange(bounds);
     image.setBounds(bounds);
     if (placeholder != null) {
       placeholder.setBounds(bounds);
     }
   }
   private void drawDebugIndicator(Canvas canvas) {
     DEBUG_PAINT.setColor(WHITE);
     Path path = getTrianglePath(new Point(0, 0), (int) (16 * density));
     canvas.drawPath(path, DEBUG_PAINT);
     DEBUG_PAINT.setColor(loadedFrom.debugColor);
     path = getTrianglePath(new Point(0, 0), (int) (15 * density));
     canvas.drawPath(path, DEBUG_PAINT);
   }
   private static Path getTrianglePath(Point p1, int width) {
     Point p2 = new Point(p1.x + width, p1.y);
     Point p3 = new Point(p1.x, p1.y + width);
     Path path = new Path();
     path.moveTo(p1.x, p1.y);
     path.lineTo(p2.x, p2.y);
     path.lineTo(p3.x, p3.y);
     return path;
   }
 }

The Tor Browser / annotate

mobile/android/thirdparty/com/squareup/picasso/PicassoDrawable.java@6474c204b198 (annotated)

mobile/android/thirdparty/com/squareup/picasso/PicassoDrawable.java