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/*
* Copyright (C) 2008 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.deskclock;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.graphics.Typeface;
import android.os.Handler;
import android.provider.Settings;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.text.DateFormatSymbols;
import java.util.Calendar;
/**
* Displays the time
*/
public class DigitalClock extends LinearLayout {
private final static String M12 = "h:mm";
private Calendar mCalendar;
private String mFormat;
private TextView mTimeDisplay;
private AmPm mAmPm;
private ContentObserver mFormatChangeObserver;
private boolean mLive = true;
private boolean mAttached;
/* called by system on minute ticks */
private final Handler mHandler = new Handler();
private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (mLive && intent.getAction().equals(
Intent.ACTION_TIMEZONE_CHANGED)) {
mCalendar = Calendar.getInstance();
}
updateTime();
}
};
static class AmPm {
private TextView mAmPm;
private String mAmString, mPmString;
AmPm(View parent, Typeface tf) {
mAmPm = (TextView) parent.findViewById(R.id.am_pm);
mAmPm.setTypeface(tf);
String[] ampm = new DateFormatSymbols().getAmPmStrings();
mAmString = ampm[0];
mPmString = ampm[1];
}
void setShowAmPm(boolean show) {
mAmPm.setVisibility(show ? View.VISIBLE : View.GONE);
}
void setIsMorning(boolean isMorning) {
mAmPm.setText(isMorning ? mAmString : mPmString);
}
}
private class FormatChangeObserver extends ContentObserver {
public FormatChangeObserver() {
super(new Handler());
}
@Override
public void onChange(boolean selfChange) {
setDateFormat();
updateTime();
}
}
public DigitalClock(Context context) {
this(context, null);
}
public DigitalClock(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
Typeface tf = Typeface.createFromAsset(getContext().getAssets(),
"fonts/Clockopia.ttf");
mTimeDisplay = (TextView) findViewById(R.id.timeDisplay);
mTimeDisplay.setTypeface(tf);
mAmPm = new AmPm(this, tf);
mCalendar = Calendar.getInstance();
setDateFormat();
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
if (Log.LOGV) Log.v("onAttachedToWindow " + this);
if (mAttached) return;
mAttached = true;
if (mLive) {
/* monitor time ticks, time changed, timezone */
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_TIME_TICK);
filter.addAction(Intent.ACTION_TIME_CHANGED);
filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
mContext.registerReceiver(mIntentReceiver, filter, null, mHandler);
}
/* monitor 12/24-hour display preference */
mFormatChangeObserver = new FormatChangeObserver();
mContext.getContentResolver().registerContentObserver(
Settings.System.CONTENT_URI, true, mFormatChangeObserver);
updateTime();
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
if (!mAttached) return;
mAttached = false;
if (mLive) {
mContext.unregisterReceiver(mIntentReceiver);
}
mContext.getContentResolver().unregisterContentObserver(
mFormatChangeObserver);
}
void updateTime(Calendar c) {
mCalendar = c;
updateTime();
}
private void updateTime() {
if (mLive) {
mCalendar.setTimeInMillis(System.currentTimeMillis());
}
CharSequence newTime = DateFormat.format(mFormat, mCalendar);
mTimeDisplay.setText(newTime);
mAmPm.setIsMorning(mCalendar.get(Calendar.AM_PM) == 0);
}
private void setDateFormat() {
mFormat = Alarms.get24HourMode(mContext) ? Alarms.M24 : M12;
mAmPm.setShowAmPm(mFormat == M12);
}
void setLive(boolean live) {
mLive = live;
}
}
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