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      1 /*
      2  * Copyright (C) 2010 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.videoeditor;
     18 
     19 import android.content.Context;
     20 import android.graphics.Bitmap;
     21 import android.graphics.BitmapFactory;
     22 import android.view.LayoutInflater;
     23 import android.view.View;
     24 import android.view.ViewGroup;
     25 import android.widget.AbsListView;
     26 
     27 /**
     28  * Adapter which displays a list of supported transitions
     29  */
     30 public class TransitionsAdapter extends BaseAdapterWithImages<Integer> {
     31     // Instance variables
     32     private final TransitionType[] mTransitions;
     33 
     34     /**
     35      * Constructor
     36      *
     37      * @param context The context
     38      * @param listView The list view
     39      */
     40     public TransitionsAdapter(Context context, AbsListView listView) {
     41         super(context, listView);
     42 
     43         mTransitions = TransitionType.getTransitions(context);
     44     }
     45 
     46     /**
     47      * @return The array of transitions
     48      */
     49     public TransitionType[] getTransitions() {
     50         return mTransitions;
     51     }
     52 
     53     /*
     54      * {@inheritDoc}
     55      */
     56     @Override
     57     public int getCount() {
     58         return mTransitions.length;
     59     }
     60 
     61     /*
     62      * {@inheritDoc}
     63      */
     64     public Object getItem(int position) {
     65         return mTransitions[position];
     66     }
     67 
     68     /*
     69      * {@inheritDoc}
     70      */
     71     @SuppressWarnings("unchecked")
     72     public View getView(int position, View convertView, ViewGroup parent) {
     73         final ImageTextViewHolder<Integer> viewHolder;
     74         final View rowView;
     75         if (convertView == null) {
     76             final LayoutInflater vi =
     77                 (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
     78             rowView = vi.inflate(R.layout.image_with_text_row_view, null);
     79             viewHolder = new ImageTextViewHolder<Integer>(rowView);
     80             rowView.setTag(viewHolder);
     81         } else {
     82             rowView = convertView;
     83             viewHolder = (ImageTextViewHolder<Integer>)convertView.getTag();
     84         }
     85 
     86         final TransitionType transitionType = mTransitions[position];
     87         final int type = transitionType.getType();
     88         initiateLoad(type, type, viewHolder);
     89 
     90         // Set the data in the views
     91         viewHolder.mNameView.setText(transitionType.getName());
     92 
     93         return rowView;
     94     }
     95 
     96     /*
     97      * {@inheritDoc}
     98      */
     99     @Override
    100     protected Bitmap loadImage(Object data) {
    101         return BitmapFactory.decodeResource(mContext.getResources(),
    102                 TransitionType.TRANSITION_RESOURCE_IDS[(Integer)data]);
    103     }
    104 }
    105