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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 android.content.Context;
     20 import android.util.AttributeSet;
     21 import android.view.LayoutInflater;
     22 import android.view.View;
     23 import android.view.ViewGroup;
     24 import android.widget.AdapterView;
     25 import android.widget.ArrayAdapter;
     26 import android.widget.ListView;
     27 
     28 import com.android.camera.CameraSettings;
     29 import com.android.camera.ListPreference;
     30 import com.android.camera.PreferenceGroup;
     31 import com.android.camera.R;
     32 
     33 import java.util.ArrayList;
     34 
     35 /* A popup window that contains several camera settings. */
     36 public class OtherSettingsPopup extends AbstractSettingPopup
     37         implements InLineSettingItem.Listener,
     38         AdapterView.OnItemClickListener {
     39     @SuppressWarnings("unused")
     40     private static final String TAG = "OtherSettingsPopup";
     41 
     42     private Listener mListener;
     43     private ArrayList<ListPreference> mListItem = new ArrayList<ListPreference>();
     44 
     45     static public interface Listener {
     46         public void onSettingChanged();
     47         public void onRestorePreferencesClicked();
     48     }
     49 
     50     private class OtherSettingsAdapter extends ArrayAdapter<ListPreference> {
     51         LayoutInflater mInflater;
     52 
     53         OtherSettingsAdapter() {
     54             super(OtherSettingsPopup.this.getContext(), 0, mListItem);
     55             mInflater = LayoutInflater.from(getContext());
     56         }
     57 
     58         private int getSettingLayoutId(ListPreference pref) {
     59             // If the preference is null, it will be the only item , i.e.
     60             // 'Restore setting' in the popup window.
     61             if (pref == null) return R.layout.in_line_setting_restore;
     62 
     63             // Currently, the RecordLocationPreference is the only setting
     64             // which applies the on/off switch.
     65             if (CameraSettings.KEY_RECORD_LOCATION.equals(pref.getKey())) {
     66                 return R.layout.in_line_setting_switch;
     67             }
     68             return R.layout.in_line_setting_knob;
     69         }
     70 
     71         @Override
     72         public View getView(int position, View convertView, ViewGroup parent) {
     73             if (convertView != null) return convertView;
     74 
     75             ListPreference pref = mListItem.get(position);
     76 
     77             int viewLayoutId = getSettingLayoutId(pref);
     78             InLineSettingItem view = (InLineSettingItem)
     79                     mInflater.inflate(viewLayoutId, parent, false);
     80             if (viewLayoutId == R.layout.in_line_setting_restore) {
     81                 view.setId(R.id.restore_default);
     82             }
     83 
     84             view.initialize(pref); // no init for restore one
     85             view.setSettingChangedListener(OtherSettingsPopup.this);
     86             return view;
     87         }
     88     }
     89 
     90     public void setSettingChangedListener(Listener listener) {
     91         mListener = listener;
     92     }
     93 
     94     public OtherSettingsPopup(Context context, AttributeSet attrs) {
     95         super(context, attrs);
     96     }
     97 
     98     public void initialize(PreferenceGroup group, String[] keys) {
     99         // Prepare the setting items.
    100         for (int i = 0; i < keys.length; ++i) {
    101             ListPreference pref = group.findPreference(keys[i]);
    102             if (pref != null) mListItem.add(pref);
    103         }
    104 
    105         // Prepare the restore setting line.
    106         mListItem.add(null);
    107 
    108         ArrayAdapter<ListPreference> mListItemAdapter = new OtherSettingsAdapter();
    109         ((ListView) mSettingList).setAdapter(mListItemAdapter);
    110         ((ListView) mSettingList).setOnItemClickListener(this);
    111         ((ListView) mSettingList).setSelector(android.R.color.transparent);
    112     }
    113 
    114     @Override
    115     public void onSettingChanged() {
    116         if (mListener != null) {
    117             mListener.onSettingChanged();
    118         }
    119     }
    120 
    121     // Scene mode can override other camera settings (ex: flash mode).
    122     public void overrideSettings(final String ... keyvalues) {
    123         int count = mSettingList.getChildCount();
    124         for (int i = 0; i < keyvalues.length; i += 2) {
    125             String key = keyvalues[i];
    126             String value = keyvalues[i + 1];
    127             for (int j = 0; j < count; j++) {
    128                 ListPreference pref = mListItem.get(j);
    129                 if (pref != null && key.equals(pref.getKey())) {
    130                     InLineSettingItem settingItem =
    131                             (InLineSettingItem) mSettingList.getChildAt(j);
    132                     settingItem.overrideSettings(value);
    133                 }
    134             }
    135         }
    136     }
    137 
    138     @Override
    139     public void onItemClick(AdapterView<?> parent, View view, int position,
    140             long id) {
    141         if ((position == mListItem.size() - 1) && (mListener != null)) {
    142             mListener.onRestorePreferencesClicked();
    143         }
    144     }
    145 
    146     @Override
    147     public void reloadPreference() {
    148         int count = mSettingList.getChildCount();
    149         for (int i = 0; i < count; i++) {
    150             ListPreference pref = mListItem.get(i);
    151             if (pref != null) {
    152                 InLineSettingItem settingItem =
    153                         (InLineSettingItem) mSettingList.getChildAt(i);
    154                 settingItem.reloadPreference();
    155             }
    156         }
    157     }
    158 }
    159