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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.camera.ui;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import com.android.camera.IconListPreference;
import com.android.camera.ListPreference;
import com.android.camera2.R;
// A popup window that shows one camera setting. The title is the name of the
// setting (ex: white-balance). The entries are the supported values (ex:
// daylight, incandescent, etc). If initialized with an IconListPreference,
// the entries will contain both text and icons. Otherwise, entries will be
// shown in text.
public class ListPrefSettingPopup extends AbstractSettingPopup implements
AdapterView.OnItemClickListener {
private static final String TAG = "ListPrefSettingPopup";
private ListPreference mPreference;
private Listener mListener;
static public interface Listener {
public void onListPrefChanged(ListPreference pref);
}
public ListPrefSettingPopup(Context context, AttributeSet attrs) {
super(context, attrs);
}
private class ListPrefSettingAdapter extends SimpleAdapter {
ListPrefSettingAdapter(Context context, List<? extends Map<String, ?>> data,
int resource, String[] from, int[] to) {
super(context, data, resource, from, to);
}
@Override
public void setViewImage(ImageView v, String value) {
if ("".equals(value)) {
// Some settings have no icons. Ex: exposure compensation.
v.setVisibility(View.GONE);
} else {
super.setViewImage(v, value);
}
}
}
public void initialize(ListPreference preference) {
mPreference = preference;
Context context = getContext();
CharSequence[] entries = mPreference.getEntries();
int[] iconIds = null;
if (preference instanceof IconListPreference) {
iconIds = ((IconListPreference) mPreference).getImageIds();
if (iconIds == null) {
iconIds = ((IconListPreference) mPreference).getLargeIconIds();
}
}
// Set title.
mTitle.setText(mPreference.getTitle());
// Prepare the ListView.
ArrayList<HashMap<String, Object>> listItem =
new ArrayList<HashMap<String, Object>>();
for(int i = 0; i < entries.length; ++i) {
HashMap<String, Object> map = new HashMap<String, Object>();
map.put("text", entries[i].toString());
if (iconIds != null) map.put("image", iconIds[i]);
listItem.add(map);
}
SimpleAdapter listItemAdapter = new ListPrefSettingAdapter(context, listItem,
R.layout.setting_item,
new String[] {"text", "image"},
new int[] {R.id.text, R.id.image});
((ListView) mSettingList).setAdapter(listItemAdapter);
((ListView) mSettingList).setOnItemClickListener(this);
reloadPreference();
}
// The value of the preference may have changed. Update the UI.
@Override
public void reloadPreference() {
int index = mPreference.findIndexOfValue(mPreference.getValue());
if (index != -1) {
((ListView) mSettingList).setItemChecked(index, true);
} else {
Log.e(TAG, "Invalid preference value.");
mPreference.print();
}
}
public void setSettingChangedListener(Listener listener) {
mListener = listener;
}
@Override
public void onItemClick(AdapterView<?> parent, View view,
int index, long id) {
mPreference.setValueIndex(index);
if (mListener != null) mListener.onListPrefChanged(mPreference);
}
}
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