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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 android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.android.camera.ListPreference;
import com.android.camera.PreferenceGroup;
import com.android.camera2.R;
/* A popup window that contains several camera settings. */
public class MoreSettingPopup extends AbstractSettingPopup
implements InLineSettingItem.Listener,
AdapterView.OnItemClickListener {
@SuppressWarnings("unused")
private static final String TAG = "MoreSettingPopup";
private Listener mListener;
private ArrayList<ListPreference> mListItem = new ArrayList<ListPreference>();
// Keep track of which setting items are disabled
// e.g. White balance will be disabled when scene mode is set to non-auto
private boolean[] mEnabled;
static public interface Listener {
public void onSettingChanged(ListPreference pref);
public void onPreferenceClicked(ListPreference pref);
}
private class MoreSettingAdapter extends ArrayAdapter<ListPreference> {
LayoutInflater mInflater;
String mOnString;
String mOffString;
MoreSettingAdapter() {
super(MoreSettingPopup.this.getContext(), 0, mListItem);
Context context = getContext();
mInflater = LayoutInflater.from(context);
mOnString = context.getString(R.string.setting_on);
mOffString = context.getString(R.string.setting_off);
}
private int getSettingLayoutId(ListPreference pref) {
if (isOnOffPreference(pref)) {
return R.layout.in_line_setting_check_box;
}
return R.layout.in_line_setting_menu;
}
private boolean isOnOffPreference(ListPreference pref) {
CharSequence[] entries = pref.getEntries();
if (entries.length != 2) return false;
String str1 = entries[0].toString();
String str2 = entries[1].toString();
return ((str1.equals(mOnString) && str2.equals(mOffString)) ||
(str1.equals(mOffString) && str2.equals(mOnString)));
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView != null) return convertView;
ListPreference pref = mListItem.get(position);
int viewLayoutId = getSettingLayoutId(pref);
InLineSettingItem view = (InLineSettingItem)
mInflater.inflate(viewLayoutId, parent, false);
view.initialize(pref); // no init for restore one
view.setSettingChangedListener(MoreSettingPopup.this);
if (position >= 0 && position < mEnabled.length) {
view.setEnabled(mEnabled[position]);
} else {
Log.w(TAG, "Invalid input: enabled list length, " + mEnabled.length
+ " position " + position);
}
return view;
}
@Override
public boolean isEnabled(int position) {
if (position >= 0 && position < mEnabled.length) {
return mEnabled[position];
}
return true;
}
}
public void setSettingChangedListener(Listener listener) {
mListener = listener;
}
public MoreSettingPopup(Context context, AttributeSet attrs) {
super(context, attrs);
}
public void initialize(PreferenceGroup group, String[] keys) {
// Prepare the setting items.
for (int i = 0; i < keys.length; ++i) {
ListPreference pref = group.findPreference(keys[i]);
if (pref != null) mListItem.add(pref);
}
ArrayAdapter<ListPreference> mListItemAdapter = new MoreSettingAdapter();
((ListView) mSettingList).setAdapter(mListItemAdapter);
((ListView) mSettingList).setOnItemClickListener(this);
((ListView) mSettingList).setSelector(android.R.color.transparent);
// Initialize mEnabled
mEnabled = new boolean[mListItem.size()];
for (int i = 0; i < mEnabled.length; i++) {
mEnabled[i] = true;
}
}
// When preferences are disabled, we will display them grayed out. Users
// will not be able to change the disabled preferences, but they can still see
// the current value of the preferences
public void setPreferenceEnabled(String key, boolean enable) {
int count = mEnabled == null ? 0 : mEnabled.length;
for (int j = 0; j < count; j++) {
ListPreference pref = mListItem.get(j);
if (pref != null && key.equals(pref.getKey())) {
mEnabled[j] = enable;
break;
}
}
}
public void onSettingChanged(ListPreference pref) {
if (mListener != null) {
mListener.onSettingChanged(pref);
}
}
// Scene mode can override other camera settings (ex: flash mode).
public void overrideSettings(final String ... keyvalues) {
int count = mEnabled == null ? 0 : mEnabled.length;
for (int i = 0; i < keyvalues.length; i += 2) {
String key = keyvalues[i];
String value = keyvalues[i + 1];
for (int j = 0; j < count; j++) {
ListPreference pref = mListItem.get(j);
if (pref != null && key.equals(pref.getKey())) {
// Change preference
if (value != null) pref.setValue(value);
// If the preference is overridden, disable the preference
boolean enable = value == null;
mEnabled[j] = enable;
if (mSettingList.getChildCount() > j) {
mSettingList.getChildAt(j).setEnabled(enable);
}
}
}
}
reloadPreference();
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
if (mListener != null) {
ListPreference pref = mListItem.get(position);
mListener.onPreferenceClicked(pref);
}
}
@Override
public void reloadPreference() {
int count = mSettingList.getChildCount();
for (int i = 0; i < count; i++) {
ListPreference pref = mListItem.get(i);
if (pref != null) {
InLineSettingItem settingItem =
(InLineSettingItem) mSettingList.getChildAt(i);
settingItem.reloadPreference();
}
}
}
}
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