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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.gallery3d.ingest.ui;
     18 
     19 import android.content.Context;
     20 import android.graphics.Bitmap;
     21 import android.graphics.Canvas;
     22 import android.graphics.Paint;
     23 import android.mtp.MtpDevice;
     24 import android.mtp.MtpObjectInfo;
     25 import android.util.AttributeSet;
     26 import android.widget.Checkable;
     27 
     28 import com.android.gallery3d.R;
     29 import com.android.gallery3d.ingest.data.MtpBitmapFetch;
     30 
     31 
     32 public class MtpThumbnailTileView extends MtpImageView implements Checkable {
     33 
     34     private Paint mForegroundPaint;
     35     private boolean mIsChecked;
     36     private Bitmap mBitmap;
     37 
     38     private void init() {
     39         mForegroundPaint = new Paint();
     40         mForegroundPaint.setColor(getResources().getColor(R.color.ingest_highlight_semitransparent));
     41     }
     42 
     43     public MtpThumbnailTileView(Context context) {
     44         super(context);
     45         init();
     46     }
     47 
     48     public MtpThumbnailTileView(Context context, AttributeSet attrs) {
     49         super(context, attrs);
     50         init();
     51     }
     52 
     53     public MtpThumbnailTileView(Context context, AttributeSet attrs, int defStyle) {
     54         super(context, attrs, defStyle);
     55         init();
     56     }
     57 
     58     @Override
     59     public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
     60         // Force this to be square
     61         super.onMeasure(widthMeasureSpec, widthMeasureSpec);
     62     }
     63 
     64     @Override
     65     protected Object fetchMtpImageDataFromDevice(MtpDevice device, MtpObjectInfo info) {
     66         return MtpBitmapFetch.getThumbnail(device, info);
     67     }
     68 
     69     @Override
     70     protected void onMtpImageDataFetchedFromDevice(Object result) {
     71         mBitmap = (Bitmap)result;
     72         setImageBitmap(mBitmap);
     73     }
     74 
     75     @Override
     76     public void draw(Canvas canvas) {
     77         super.draw(canvas);
     78         if (isChecked()) {
     79             canvas.drawRect(canvas.getClipBounds(), mForegroundPaint);
     80         }
     81     }
     82 
     83     @Override
     84     public boolean isChecked() {
     85         return mIsChecked;
     86     }
     87 
     88     @Override
     89     public void setChecked(boolean checked) {
     90         mIsChecked = checked;
     91     }
     92 
     93     @Override
     94     public void toggle() {
     95         setChecked(!mIsChecked);
     96     }
     97 
     98     @Override
     99     protected void cancelLoadingAndClear() {
    100         super.cancelLoadingAndClear();
    101         if (mBitmap != null) {
    102             MtpBitmapFetch.recycleThumbnail(mBitmap);
    103             mBitmap = null;
    104         }
    105     }
    106 }
    107