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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.photos.adapters;
     18 
     19 import android.content.Context;
     20 import android.database.Cursor;
     21 import android.graphics.drawable.Drawable;
     22 import android.view.LayoutInflater;
     23 import android.view.View;
     24 import android.view.ViewGroup;
     25 import android.widget.CursorAdapter;
     26 import android.widget.ImageView;
     27 
     28 import com.android.gallery3d.R;
     29 import com.android.photos.data.PhotoSetLoader;
     30 import com.android.photos.shims.LoaderCompatShim;
     31 import com.android.photos.views.GalleryThumbnailView.GalleryThumbnailAdapter;
     32 
     33 
     34 public class PhotoThumbnailAdapter extends CursorAdapter implements GalleryThumbnailAdapter {
     35     private LayoutInflater mInflater;
     36     private LoaderCompatShim<Cursor> mDrawableFactory;
     37 
     38     public PhotoThumbnailAdapter(Context context) {
     39         super(context, null, false);
     40         mInflater = LayoutInflater.from(context);
     41     }
     42 
     43     public void setDrawableFactory(LoaderCompatShim<Cursor> factory) {
     44         mDrawableFactory = factory;
     45     }
     46 
     47     @Override
     48     public void bindView(View view, Context context, Cursor cursor) {
     49         ImageView iv = (ImageView) view.findViewById(R.id.thumbnail);
     50         Drawable recycle = iv.getDrawable();
     51         Drawable drawable = mDrawableFactory.drawableForItem(cursor, recycle);
     52         if (recycle != drawable) {
     53             iv.setImageDrawable(drawable);
     54         }
     55     }
     56 
     57     @Override
     58     public View newView(Context context, Cursor cursor, ViewGroup parent) {
     59         View view = mInflater.inflate(R.layout.photo_set_item, parent, false);
     60         return view;
     61     }
     62 
     63     @Override
     64     public float getIntrinsicAspectRatio(int position) {
     65         Cursor cursor = getItem(position);
     66         float width = cursor.getInt(PhotoSetLoader.INDEX_WIDTH);
     67         float height = cursor.getInt(PhotoSetLoader.INDEX_HEIGHT);
     68         return width / height;
     69     }
     70 
     71     @Override
     72     public Cursor getItem(int position) {
     73         return (Cursor) super.getItem(position);
     74     }
     75 }