+++ /dev/null
-/*
- * Copyright (C) 2011 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 android.support.v2.util;
-
-import java.io.PrintWriter;
-
-/**
- * Useful time utilities that are not available on all versions of Android.
- */
-public class TimeUtils {
- /** @hide Field length that can hold 999 days of time */
- public static final int HUNDRED_DAY_FIELD_LEN = 19;
-
- private static final int SECONDS_PER_MINUTE = 60;
- private static final int SECONDS_PER_HOUR = 60 * 60;
- private static final int SECONDS_PER_DAY = 24 * 60 * 60;
-
- private static final Object sFormatSync = new Object();
- private static char[] sFormatStr = new char[HUNDRED_DAY_FIELD_LEN+5];
-
- static private int accumField(int amt, int suffix, boolean always, int zeropad) {
- if (amt > 99 || (always && zeropad >= 3)) {
- return 3+suffix;
- }
- if (amt > 9 || (always && zeropad >= 2)) {
- return 2+suffix;
- }
- if (always || amt > 0) {
- return 1+suffix;
- }
- return 0;
- }
-
- static private int printField(char[] formatStr, int amt, char suffix, int pos,
- boolean always, int zeropad) {
- if (always || amt > 0) {
- final int startPos = pos;
- if ((always && zeropad >= 3) || amt > 99) {
- int dig = amt/100;
- formatStr[pos] = (char)(dig + '0');
- pos++;
- amt -= (dig*100);
- }
- if ((always && zeropad >= 2) || amt > 9 || startPos != pos) {
- int dig = amt/10;
- formatStr[pos] = (char)(dig + '0');
- pos++;
- amt -= (dig*10);
- }
- formatStr[pos] = (char)(amt + '0');
- pos++;
- formatStr[pos] = suffix;
- pos++;
- }
- return pos;
- }
-
- private static int formatDurationLocked(long duration, int fieldLen) {
- if (sFormatStr.length < fieldLen) {
- sFormatStr = new char[fieldLen];
- }
-
- char[] formatStr = sFormatStr;
-
- if (duration == 0) {
- int pos = 0;
- fieldLen -= 1;
- while (pos < fieldLen) {
- formatStr[pos] = ' ';
- }
- formatStr[pos] = '0';
- return pos+1;
- }
-
- char prefix;
- if (duration > 0) {
- prefix = '+';
- } else {
- prefix = '-';
- duration = -duration;
- }
-
- int millis = (int)(duration%1000);
- int seconds = (int) Math.floor(duration / 1000);
- int days = 0, hours = 0, minutes = 0;
-
- if (seconds > SECONDS_PER_DAY) {
- days = seconds / SECONDS_PER_DAY;
- seconds -= days * SECONDS_PER_DAY;
- }
- if (seconds > SECONDS_PER_HOUR) {
- hours = seconds / SECONDS_PER_HOUR;
- seconds -= hours * SECONDS_PER_HOUR;
- }
- if (seconds > SECONDS_PER_MINUTE) {
- minutes = seconds / SECONDS_PER_MINUTE;
- seconds -= minutes * SECONDS_PER_MINUTE;
- }
-
- int pos = 0;
-
- if (fieldLen != 0) {
- int myLen = accumField(days, 1, false, 0);
- myLen += accumField(hours, 1, myLen > 0, 2);
- myLen += accumField(minutes, 1, myLen > 0, 2);
- myLen += accumField(seconds, 1, myLen > 0, 2);
- myLen += accumField(millis, 2, true, myLen > 0 ? 3 : 0) + 1;
- while (myLen < fieldLen) {
- formatStr[pos] = ' ';
- pos++;
- myLen++;
- }
- }
-
- formatStr[pos] = prefix;
- pos++;
-
- int start = pos;
- boolean zeropad = fieldLen != 0;
- pos = printField(formatStr, days, 'd', pos, false, 0);
- pos = printField(formatStr, hours, 'h', pos, pos != start, zeropad ? 2 : 0);
- pos = printField(formatStr, minutes, 'm', pos, pos != start, zeropad ? 2 : 0);
- pos = printField(formatStr, seconds, 's', pos, pos != start, zeropad ? 2 : 0);
- pos = printField(formatStr, millis, 'm', pos, true, (zeropad && pos != start) ? 3 : 0);
- formatStr[pos] = 's';
- return pos + 1;
- }
-
- /** @hide Just for debugging; not internationalized. */
- public static void formatDuration(long duration, StringBuilder builder) {
- synchronized (sFormatSync) {
- int len = formatDurationLocked(duration, 0);
- builder.append(sFormatStr, 0, len);
- }
- }
-
- /** @hide Just for debugging; not internationalized. */
- public static void formatDuration(long duration, PrintWriter pw, int fieldLen) {
- synchronized (sFormatSync) {
- int len = formatDurationLocked(duration, fieldLen);
- pw.print(new String(sFormatStr, 0, len));
- }
- }
-
- /** @hide Just for debugging; not internationalized. */
- public static void formatDuration(long duration, PrintWriter pw) {
- formatDuration(duration, pw, 0);
- }
-
- /** @hide Just for debugging; not internationalized. */
- public static void formatDuration(long time, long now, PrintWriter pw) {
- if (time == 0) {
- pw.print("--");
- return;
- }
- formatDuration(time-now, pw, 0);
- }
-}
notaz.gp2x.de / android_pandora.git / blobdiff