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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.camera.ui;
     18 
     19 import com.android.camera.IconListPreference;
     20 import com.android.camera.R;
     21 
     22 import android.content.Context;
     23 import android.util.AttributeSet;
     24 import android.util.Log;
     25 import android.view.View;
     26 import android.widget.AbsListView;
     27 import android.widget.AdapterView;
     28 import android.widget.SimpleAdapter;
     29 
     30 import java.util.ArrayList;
     31 import java.util.HashMap;
     32 
     33 // A popup window that shows one camera setting. The title is the name of the
     34 // setting (ex: white-balance). The entries are the supported values (ex:
     35 // daylight, incandescent, etc).
     36 public class BasicSettingPopup extends AbstractSettingPopup implements
     37         AdapterView.OnItemClickListener {
     38     private final String TAG = "BasicSettingPopup";
     39     private IconListPreference mPreference;
     40     private Listener mListener;
     41 
     42     static public interface Listener {
     43         public void onSettingChanged();
     44     }
     45 
     46     public BasicSettingPopup(Context context, AttributeSet attrs) {
     47         super(context, attrs);
     48     }
     49 
     50     public void initialize(IconListPreference preference) {
     51         mPreference = preference;
     52         Context context = getContext();
     53         CharSequence[] entries = mPreference.getEntries();
     54         int[] iconIds = mPreference.getImageIds();
     55         if (iconIds == null) {
     56             iconIds = mPreference.getLargeIconIds();
     57         }
     58 
     59         // Set title.
     60         mTitle.setText(mPreference.getTitle());
     61 
     62         // Prepare the ListView.
     63         ArrayList<HashMap<String, Object>> listItem =
     64                 new ArrayList<HashMap<String, Object>>();
     65         for(int i = 0; i < entries.length; ++i) {
     66             HashMap<String, Object> map = new HashMap<String, Object>();
     67             map.put("text", entries[i].toString());
     68             if (iconIds != null) map.put("image", iconIds[i]);
     69             listItem.add(map);
     70         }
     71         SimpleAdapter listItemAdapter = new SimpleAdapter(context, listItem,
     72                 R.layout.setting_item,
     73                 new String[] {"text", "image"},
     74                 new int[] {R.id.text, R.id.image});
     75         ((AbsListView) mSettingList).setAdapter(listItemAdapter);
     76         ((AbsListView) mSettingList).setOnItemClickListener(this);
     77         reloadPreference();
     78     }
     79 
     80     // The value of the preference may have changed. Update the UI.
     81     @Override
     82     public void reloadPreference() {
     83         int index = mPreference.findIndexOfValue(mPreference.getValue());
     84         if (index != -1) {
     85             ((AbsListView) mSettingList).setItemChecked(index, true);
     86         } else {
     87             Log.e(TAG, "Invalid preference value.");
     88             mPreference.print();
     89         }
     90     }
     91 
     92     public void setSettingChangedListener(Listener listener) {
     93         mListener = listener;
     94     }
     95 
     96     @Override
     97     public void onItemClick(AdapterView<?> parent, View view,
     98             int index, long id) {
     99         mPreference.setValueIndex(index);
    100         if (mListener != null) mListener.onSettingChanged();
    101     }
    102 }
    103