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      1 /*
      2  * Copyright (C) 2006 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.systemui.statusbar.tablet;
     18 
     19 import android.content.BroadcastReceiver;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.content.IntentFilter;
     23 import android.content.res.AssetManager;
     24 import android.content.res.Resources;
     25 import android.content.res.TypedArray;
     26 import android.graphics.Canvas;
     27 import android.graphics.Typeface;
     28 import android.graphics.drawable.Drawable;
     29 import android.text.Spannable;
     30 import android.text.SpannableStringBuilder;
     31 import android.text.format.DateFormat;
     32 import android.text.style.CharacterStyle;
     33 import android.text.style.ForegroundColorSpan;
     34 import android.text.style.RelativeSizeSpan;
     35 import android.text.style.RelativeSizeSpan;
     36 import android.text.style.StyleSpan;
     37 import android.util.AttributeSet;
     38 import android.view.View;
     39 import android.view.ViewGroup;
     40 import android.widget.FrameLayout;
     41 import android.widget.TextView;
     42 
     43 import java.text.SimpleDateFormat;
     44 import java.util.Calendar;
     45 import java.util.TimeZone;
     46 
     47 import com.android.systemui.R;
     48 
     49 public class HoloClock extends FrameLayout {
     50     private boolean mAttached;
     51     private Calendar mCalendar;
     52     private String mClockFormatString;
     53     private SimpleDateFormat mClockFormat;
     54 
     55     private static final String FONT_DIR = "/system/fonts/";
     56     private static final String CLOCK_FONT = FONT_DIR + "AndroidClock_Solid.ttf";
     57     private static final String CLOCK_FG_FONT = FONT_DIR + "AndroidClock.ttf";
     58     private static final String CLOCK_BG_FONT = FONT_DIR + "AndroidClock_Highlight.ttf";
     59 
     60     private static Typeface sBackgroundType, sForegroundType, sSolidType;
     61     private TextView mSolidText, mBgText, mFgText;
     62 
     63     public HoloClock(Context context) {
     64         this(context, null);
     65     }
     66 
     67     public HoloClock(Context context, AttributeSet attrs) {
     68         this(context, attrs, 0);
     69     }
     70 
     71     public HoloClock(Context context, AttributeSet attrs, int defStyle) {
     72         super(context, attrs, defStyle);
     73     }
     74 
     75     @Override
     76     protected void onFinishInflate() {
     77         super.onFinishInflate();
     78 
     79         if (sSolidType == null) {
     80             sSolidType = Typeface.createFromFile(CLOCK_FONT);
     81             sBackgroundType = Typeface.createFromFile(CLOCK_BG_FONT);
     82             sForegroundType = Typeface.createFromFile(CLOCK_FG_FONT);
     83         }
     84         mBgText = (TextView) findViewById(R.id.time_bg);
     85         if (mBgText != null) {
     86             mBgText.setTypeface(sBackgroundType);
     87             mBgText.setVisibility(View.INVISIBLE);
     88         }
     89 
     90         mFgText = (TextView) findViewById(R.id.time_fg);
     91         if (mFgText != null) {
     92             mFgText.setTypeface(sForegroundType);
     93         }
     94         mSolidText = (TextView) findViewById(R.id.time_solid);
     95         if (mSolidText != null) {
     96             mSolidText.setTypeface(sSolidType);
     97         }
     98     }
     99 
    100     @Override
    101     protected void onAttachedToWindow() {
    102         super.onAttachedToWindow();
    103 
    104         if (!mAttached) {
    105             mAttached = true;
    106             IntentFilter filter = new IntentFilter();
    107 
    108             filter.addAction(Intent.ACTION_TIME_TICK);
    109             filter.addAction(Intent.ACTION_TIME_CHANGED);
    110             filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
    111             filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
    112 
    113             getContext().registerReceiver(mIntentReceiver, filter, null, getHandler());
    114         }
    115 
    116         // NOTE: It's safe to do these after registering the receiver since the receiver always runs
    117         // in the main thread, therefore the receiver can't run before this method returns.
    118 
    119         // The time zone may have changed while the receiver wasn't registered, so update the Time
    120         mCalendar = Calendar.getInstance(TimeZone.getDefault());
    121 
    122         // Make sure we update to the current time
    123         updateClock();
    124     }
    125 
    126     @Override
    127     protected void onDetachedFromWindow() {
    128         super.onDetachedFromWindow();
    129         if (mAttached) {
    130             getContext().unregisterReceiver(mIntentReceiver);
    131             mAttached = false;
    132         }
    133     }
    134 
    135     private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
    136         @Override
    137         public void onReceive(Context context, Intent intent) {
    138             String action = intent.getAction();
    139             if (action.equals(Intent.ACTION_TIMEZONE_CHANGED)) {
    140                 String tz = intent.getStringExtra("time-zone");
    141                 mCalendar = Calendar.getInstance(TimeZone.getTimeZone(tz));
    142                 if (mClockFormat != null) {
    143                     mClockFormat.setTimeZone(mCalendar.getTimeZone());
    144                 }
    145             }
    146             updateClock();
    147         }
    148     };
    149 
    150     final void updateClock() {
    151         mCalendar.setTimeInMillis(System.currentTimeMillis());
    152         CharSequence txt = getTimeText();
    153         if (mBgText != null) mBgText.setText(txt);
    154         if (mFgText != null) mFgText.setText(txt);
    155         if (mSolidText != null) mSolidText.setText(txt);
    156     }
    157 
    158     private final CharSequence getTimeText() {
    159         Context context = getContext();
    160         int res = DateFormat.is24HourFormat(context)
    161             ? com.android.internal.R.string.twenty_four_hour_time_format
    162             : com.android.internal.R.string.twelve_hour_time_format;
    163 
    164         SimpleDateFormat sdf;
    165         String format = context.getString(res);
    166         if (!format.equals(mClockFormatString)) {
    167             // we don't want AM/PM showing up in our statusbar, even in 12h mode
    168             format = format.replaceAll("a", "").trim();
    169             mClockFormat = sdf = new SimpleDateFormat(format);
    170             mClockFormatString = format;
    171         } else {
    172             sdf = mClockFormat;
    173         }
    174         String result = sdf.format(mCalendar.getTime());
    175         return result;
    176     }
    177 }
    178 
    179