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 {
onSettingChanged()43         public void onSettingChanged();
44     }
45 
BasicSettingPopup(Context context, AttributeSet attrs)46     public BasicSettingPopup(Context context, AttributeSet attrs) {
47         super(context, attrs);
48     }
49 
initialize(IconListPreference preference)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
reloadPreference()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 
setSettingChangedListener(Listener listener)92     public void setSettingChangedListener(Listener listener) {
93         mListener = listener;
94     }
95 
96     @Override
onItemClick(AdapterView<?> parent, View view, int index, long id)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