Utils.java revision 17c0cea5c4e5eee7b6c1676038e9223dd971007b
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 17package com.android.calendar; 18 19import static android.provider.CalendarContract.EXTRA_EVENT_BEGIN_TIME; 20 21import com.android.calendar.CalendarController.ViewType; 22 23import android.app.Activity; 24import android.app.SearchManager; 25import android.content.Context; 26import android.content.Intent; 27import android.content.SharedPreferences; 28import android.content.res.Configuration; 29import android.content.res.Resources; 30import android.database.Cursor; 31import android.database.MatrixCursor; 32import android.graphics.Color; 33import android.net.Uri; 34import android.os.Bundle; 35import android.text.TextUtils; 36import android.text.format.DateUtils; 37import android.text.format.Time; 38import android.util.Log; 39import android.widget.SearchView; 40 41import com.android.calendar.CalendarUtils.TimeZoneUtils; 42 43import java.util.ArrayList; 44import java.util.Arrays; 45import java.util.Calendar; 46import java.util.Formatter; 47import java.util.HashMap; 48import java.util.Iterator; 49import java.util.LinkedList; 50import java.util.List; 51import java.util.Map; 52 53public class Utils { 54 private static final boolean DEBUG = false; 55 private static final String TAG = "CalUtils"; 56 // Set to 0 until we have UI to perform undo 57 public static final long UNDO_DELAY = 0; 58 59 // For recurring events which instances of the series are being modified 60 public static final int MODIFY_UNINITIALIZED = 0; 61 public static final int MODIFY_SELECTED = 1; 62 public static final int MODIFY_ALL_FOLLOWING = 2; 63 public static final int MODIFY_ALL = 3; 64 65 // When the edit event view finishes it passes back the appropriate exit 66 // code. 67 public static final int DONE_REVERT = 1 << 0; 68 public static final int DONE_SAVE = 1 << 1; 69 public static final int DONE_DELETE = 1 << 2; 70 // And should re run with DONE_EXIT if it should also leave the view, just 71 // exiting is identical to reverting 72 public static final int DONE_EXIT = 1 << 0; 73 74 public static final String OPEN_EMAIL_MARKER = " <"; 75 public static final String CLOSE_EMAIL_MARKER = ">"; 76 77 public static final String INTENT_KEY_DETAIL_VIEW = "DETAIL_VIEW"; 78 public static final String INTENT_KEY_VIEW_TYPE = "VIEW"; 79 public static final String INTENT_VALUE_VIEW_TYPE_DAY = "DAY"; 80 81 public static final int MONDAY_BEFORE_JULIAN_EPOCH = Time.EPOCH_JULIAN_DAY - 3; 82 83 private static final float SATURATION_ADJUST = 0.3f; 84 85 // Defines used by the DNA generation code 86 static final int DAY_IN_MINUTES = 60 * 24; 87 static final int WEEK_IN_MINUTES = DAY_IN_MINUTES * 7; 88 // The work day is being counted as 6am to 8pm 89 static int WORK_DAY_MINUTES = 14 * 60; 90 static int WORK_DAY_START_MINUTES = 6 * 60; 91 static int WORK_DAY_END_MINUTES = 20 * 60; 92 static int WORK_DAY_END_LENGTH = (24 * 60) - WORK_DAY_END_MINUTES; 93 static int CONFLICT_COLOR = 0xFF000000; 94 static boolean mMinutesLoaded = false; 95 96 // The name of the shared preferences file. This name must be maintained for 97 // historical 98 // reasons, as it's what PreferenceManager assigned the first time the file 99 // was created. 100 private static final String SHARED_PREFS_NAME = "com.android.calendar_preferences"; 101 102 public static final String APPWIDGET_DATA_TYPE = "vnd.android.data/update"; 103 104 private static final TimeZoneUtils mTZUtils = new TimeZoneUtils(SHARED_PREFS_NAME); 105 private static boolean mAllowWeekForDetailView = false; 106 private static long mTardis = 0; 107 108 public static int getViewTypeFromIntentAndSharedPref(Activity activity) { 109 Intent intent = activity.getIntent(); 110 Bundle extras = intent.getExtras(); 111 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(activity); 112 113 if (TextUtils.equals(intent.getAction(), Intent.ACTION_EDIT)) { 114 return ViewType.EDIT; 115 } 116 if (extras != null) { 117 if (extras.getBoolean(INTENT_KEY_DETAIL_VIEW, false)) { 118 // This is the "detail" view which is either agenda or day view 119 return prefs.getInt(GeneralPreferences.KEY_DETAILED_VIEW, 120 GeneralPreferences.DEFAULT_DETAILED_VIEW); 121 } else if (INTENT_VALUE_VIEW_TYPE_DAY.equals(extras.getString(INTENT_KEY_VIEW_TYPE))) { 122 // Not sure who uses this. This logic came from LaunchActivity 123 return ViewType.DAY; 124 } 125 } 126 127 // Default to the last view 128 return prefs.getInt( 129 GeneralPreferences.KEY_START_VIEW, GeneralPreferences.DEFAULT_START_VIEW); 130 } 131 132 /** 133 * Gets the intent action for telling the widget to update. 134 */ 135 public static String getWidgetUpdateAction(Context context) { 136 return context.getPackageName() + ".APPWIDGET_UPDATE"; 137 } 138 139 /** 140 * Gets the intent action for telling the widget to update. 141 */ 142 public static String getWidgetScheduledUpdateAction(Context context) { 143 return context.getPackageName() + ".APPWIDGET_SCHEDULED_UPDATE"; 144 } 145 146 /** 147 * Gets the intent action for telling the widget to update. 148 */ 149 public static String getSearchAuthority(Context context) { 150 return context.getPackageName() + ".CalendarRecentSuggestionsProvider"; 151 } 152 153 /** 154 * Writes a new home time zone to the db. Updates the home time zone in the 155 * db asynchronously and updates the local cache. Sending a time zone of 156 * **tbd** will cause it to be set to the device's time zone. null or empty 157 * tz will be ignored. 158 * 159 * @param context The calling activity 160 * @param timeZone The time zone to set Calendar to, or **tbd** 161 */ 162 public static void setTimeZone(Context context, String timeZone) { 163 mTZUtils.setTimeZone(context, timeZone); 164 } 165 166 /** 167 * Gets the time zone that Calendar should be displayed in This is a helper 168 * method to get the appropriate time zone for Calendar. If this is the 169 * first time this method has been called it will initiate an asynchronous 170 * query to verify that the data in preferences is correct. The callback 171 * supplied will only be called if this query returns a value other than 172 * what is stored in preferences and should cause the calling activity to 173 * refresh anything that depends on calling this method. 174 * 175 * @param context The calling activity 176 * @param callback The runnable that should execute if a query returns new 177 * values 178 * @return The string value representing the time zone Calendar should 179 * display 180 */ 181 public static String getTimeZone(Context context, Runnable callback) { 182 return mTZUtils.getTimeZone(context, callback); 183 } 184 185 /** 186 * Formats a date or a time range according to the local conventions. 187 * 188 * @param context the context is required only if the time is shown 189 * @param startMillis the start time in UTC milliseconds 190 * @param endMillis the end time in UTC milliseconds 191 * @param flags a bit mask of options See {@link DateUtils#formatDateRange(Context, Formatter, 192 * long, long, int, String) formatDateRange} 193 * @return a string containing the formatted date/time range. 194 */ 195 public static String formatDateRange( 196 Context context, long startMillis, long endMillis, int flags) { 197 return mTZUtils.formatDateRange(context, startMillis, endMillis, flags); 198 } 199 200 public static String getSharedPreference(Context context, String key, String defaultValue) { 201 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 202 return prefs.getString(key, defaultValue); 203 } 204 205 public static int getSharedPreference(Context context, String key, int defaultValue) { 206 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 207 return prefs.getInt(key, defaultValue); 208 } 209 210 public static boolean getSharedPreference(Context context, String key, boolean defaultValue) { 211 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 212 return prefs.getBoolean(key, defaultValue); 213 } 214 215 /** 216 * Asynchronously sets the preference with the given key to the given value 217 * 218 * @param context the context to use to get preferences from 219 * @param key the key of the preference to set 220 * @param value the value to set 221 */ 222 public static void setSharedPreference(Context context, String key, String value) { 223 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 224 prefs.edit().putString(key, value).apply(); 225 } 226 227 protected static void tardis() { 228 mTardis = System.currentTimeMillis(); 229 } 230 231 protected static long getTardis() { 232 return mTardis; 233 } 234 235 static void setSharedPreference(Context context, String key, boolean value) { 236 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 237 SharedPreferences.Editor editor = prefs.edit(); 238 editor.putBoolean(key, value); 239 editor.apply(); 240 } 241 242 static void setSharedPreference(Context context, String key, int value) { 243 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 244 SharedPreferences.Editor editor = prefs.edit(); 245 editor.putInt(key, value); 246 editor.apply(); 247 } 248 249 /** 250 * Save default agenda/day/week/month view for next time 251 * 252 * @param context 253 * @param viewId {@link CalendarController.ViewType} 254 */ 255 static void setDefaultView(Context context, int viewId) { 256 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 257 SharedPreferences.Editor editor = prefs.edit(); 258 259 boolean validDetailView = false; 260 if (mAllowWeekForDetailView && viewId == CalendarController.ViewType.WEEK) { 261 validDetailView = true; 262 } else { 263 validDetailView = viewId == CalendarController.ViewType.AGENDA 264 || viewId == CalendarController.ViewType.DAY; 265 } 266 267 if (validDetailView) { 268 // Record the detail start view 269 editor.putInt(GeneralPreferences.KEY_DETAILED_VIEW, viewId); 270 } 271 272 // Record the (new) start view 273 editor.putInt(GeneralPreferences.KEY_START_VIEW, viewId); 274 editor.apply(); 275 } 276 277 public static MatrixCursor matrixCursorFromCursor(Cursor cursor) { 278 MatrixCursor newCursor = new MatrixCursor(cursor.getColumnNames()); 279 int numColumns = cursor.getColumnCount(); 280 String data[] = new String[numColumns]; 281 cursor.moveToPosition(-1); 282 while (cursor.moveToNext()) { 283 for (int i = 0; i < numColumns; i++) { 284 data[i] = cursor.getString(i); 285 } 286 newCursor.addRow(data); 287 } 288 return newCursor; 289 } 290 291 /** 292 * Compares two cursors to see if they contain the same data. 293 * 294 * @return Returns true of the cursors contain the same data and are not 295 * null, false otherwise 296 */ 297 public static boolean compareCursors(Cursor c1, Cursor c2) { 298 if (c1 == null || c2 == null) { 299 return false; 300 } 301 302 int numColumns = c1.getColumnCount(); 303 if (numColumns != c2.getColumnCount()) { 304 return false; 305 } 306 307 if (c1.getCount() != c2.getCount()) { 308 return false; 309 } 310 311 c1.moveToPosition(-1); 312 c2.moveToPosition(-1); 313 while (c1.moveToNext() && c2.moveToNext()) { 314 for (int i = 0; i < numColumns; i++) { 315 if (!TextUtils.equals(c1.getString(i), c2.getString(i))) { 316 return false; 317 } 318 } 319 } 320 321 return true; 322 } 323 324 /** 325 * If the given intent specifies a time (in milliseconds since the epoch), 326 * then that time is returned. Otherwise, the current time is returned. 327 */ 328 public static final long timeFromIntentInMillis(Intent intent) { 329 // If the time was specified, then use that. Otherwise, use the current 330 // time. 331 Uri data = intent.getData(); 332 long millis = intent.getLongExtra(EXTRA_EVENT_BEGIN_TIME, -1); 333 if (millis == -1 && data != null && data.isHierarchical()) { 334 List<String> path = data.getPathSegments(); 335 if (path.size() == 2 && path.get(0).equals("time")) { 336 try { 337 millis = Long.valueOf(data.getLastPathSegment()); 338 } catch (NumberFormatException e) { 339 Log.i("Calendar", "timeFromIntentInMillis: Data existed but no valid time " 340 + "found. Using current time."); 341 } 342 } 343 } 344 if (millis <= 0) { 345 millis = System.currentTimeMillis(); 346 } 347 return millis; 348 } 349 350 /** 351 * Formats the given Time object so that it gives the month and year (for 352 * example, "September 2007"). 353 * 354 * @param time the time to format 355 * @return the string containing the weekday and the date 356 */ 357 public static String formatMonthYear(Context context, Time time) { 358 int flags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_NO_MONTH_DAY 359 | DateUtils.FORMAT_SHOW_YEAR; 360 long millis = time.toMillis(true); 361 return formatDateRange(context, millis, millis, flags); 362 } 363 364 /** 365 * Returns a list joined together by the provided delimiter, for example, 366 * ["a", "b", "c"] could be joined into "a,b,c" 367 * 368 * @param things the things to join together 369 * @param delim the delimiter to use 370 * @return a string contained the things joined together 371 */ 372 public static String join(List<?> things, String delim) { 373 StringBuilder builder = new StringBuilder(); 374 boolean first = true; 375 for (Object thing : things) { 376 if (first) { 377 first = false; 378 } else { 379 builder.append(delim); 380 } 381 builder.append(thing.toString()); 382 } 383 return builder.toString(); 384 } 385 386 /** 387 * Returns the week since {@link Time#EPOCH_JULIAN_DAY} (Jan 1, 1970) 388 * adjusted for first day of week. 389 * 390 * This takes a julian day and the week start day and calculates which 391 * week since {@link Time#EPOCH_JULIAN_DAY} that day occurs in, starting 392 * at 0. *Do not* use this to compute the ISO week number for the year. 393 * 394 * @param julianDay The julian day to calculate the week number for 395 * @param firstDayOfWeek Which week day is the first day of the week, 396 * see {@link Time#SUNDAY} 397 * @return Weeks since the epoch 398 */ 399 public static int getWeeksSinceEpochFromJulianDay(int julianDay, int firstDayOfWeek) { 400 int diff = Time.THURSDAY - firstDayOfWeek; 401 if (diff < 0) { 402 diff += 7; 403 } 404 int refDay = Time.EPOCH_JULIAN_DAY - diff; 405 return (julianDay - refDay) / 7; 406 } 407 408 /** 409 * Takes a number of weeks since the epoch and calculates the Julian day of 410 * the Monday for that week. 411 * 412 * This assumes that the week containing the {@link Time#EPOCH_JULIAN_DAY} 413 * is considered week 0. It returns the Julian day for the Monday 414 * {@code week} weeks after the Monday of the week containing the epoch. 415 * 416 * @param week Number of weeks since the epoch 417 * @return The julian day for the Monday of the given week since the epoch 418 */ 419 public static int getJulianMondayFromWeeksSinceEpoch(int week) { 420 return MONDAY_BEFORE_JULIAN_EPOCH + week * 7; 421 } 422 423 /** 424 * Get first day of week as android.text.format.Time constant. 425 * 426 * @return the first day of week in android.text.format.Time 427 */ 428 public static int getFirstDayOfWeek(Context context) { 429 SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 430 String pref = prefs.getString( 431 GeneralPreferences.KEY_WEEK_START_DAY, GeneralPreferences.WEEK_START_DEFAULT); 432 433 int startDay; 434 if (GeneralPreferences.WEEK_START_DEFAULT.equals(pref)) { 435 startDay = Calendar.getInstance().getFirstDayOfWeek(); 436 } else { 437 startDay = Integer.parseInt(pref); 438 } 439 440 if (startDay == Calendar.SATURDAY) { 441 return Time.SATURDAY; 442 } else if (startDay == Calendar.MONDAY) { 443 return Time.MONDAY; 444 } else { 445 return Time.SUNDAY; 446 } 447 } 448 449 /** 450 * @return true when week number should be shown. 451 */ 452 public static boolean getShowWeekNumber(Context context) { 453 final SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 454 return prefs.getBoolean( 455 GeneralPreferences.KEY_SHOW_WEEK_NUM, GeneralPreferences.DEFAULT_SHOW_WEEK_NUM); 456 } 457 458 /** 459 * @return true when declined events should be hidden. 460 */ 461 public static boolean getHideDeclinedEvents(Context context) { 462 final SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 463 return prefs.getBoolean(GeneralPreferences.KEY_HIDE_DECLINED, false); 464 } 465 466 public static int getDaysPerWeek(Context context) { 467 final SharedPreferences prefs = GeneralPreferences.getSharedPreferences(context); 468 return prefs.getInt(GeneralPreferences.KEY_DAYS_PER_WEEK, 7); 469 } 470 471 /** 472 * Determine whether the column position is Saturday or not. 473 * 474 * @param column the column position 475 * @param firstDayOfWeek the first day of week in android.text.format.Time 476 * @return true if the column is Saturday position 477 */ 478 public static boolean isSaturday(int column, int firstDayOfWeek) { 479 return (firstDayOfWeek == Time.SUNDAY && column == 6) 480 || (firstDayOfWeek == Time.MONDAY && column == 5) 481 || (firstDayOfWeek == Time.SATURDAY && column == 0); 482 } 483 484 /** 485 * Determine whether the column position is Sunday or not. 486 * 487 * @param column the column position 488 * @param firstDayOfWeek the first day of week in android.text.format.Time 489 * @return true if the column is Sunday position 490 */ 491 public static boolean isSunday(int column, int firstDayOfWeek) { 492 return (firstDayOfWeek == Time.SUNDAY && column == 0) 493 || (firstDayOfWeek == Time.MONDAY && column == 6) 494 || (firstDayOfWeek == Time.SATURDAY && column == 1); 495 } 496 497 /** 498 * Convert given UTC time into current local time. This assumes it is for an 499 * allday event and will adjust the time to be on a midnight boundary. 500 * 501 * @param recycle Time object to recycle, otherwise null. 502 * @param utcTime Time to convert, in UTC. 503 * @param tz The time zone to convert this time to. 504 */ 505 public static long convertAlldayUtcToLocal(Time recycle, long utcTime, String tz) { 506 if (recycle == null) { 507 recycle = new Time(); 508 } 509 recycle.timezone = Time.TIMEZONE_UTC; 510 recycle.set(utcTime); 511 recycle.timezone = tz; 512 return recycle.normalize(true); 513 } 514 515 public static long convertAlldayLocalToUTC(Time recycle, long localTime, String tz) { 516 if (recycle == null) { 517 recycle = new Time(); 518 } 519 recycle.timezone = tz; 520 recycle.set(localTime); 521 recycle.timezone = Time.TIMEZONE_UTC; 522 return recycle.normalize(true); 523 } 524 525 /** 526 * Scan through a cursor of calendars and check if names are duplicated. 527 * This travels a cursor containing calendar display names and fills in the 528 * provided map with whether or not each name is repeated. 529 * 530 * @param isDuplicateName The map to put the duplicate check results in. 531 * @param cursor The query of calendars to check 532 * @param nameIndex The column of the query that contains the display name 533 */ 534 public static void checkForDuplicateNames( 535 Map<String, Boolean> isDuplicateName, Cursor cursor, int nameIndex) { 536 isDuplicateName.clear(); 537 cursor.moveToPosition(-1); 538 while (cursor.moveToNext()) { 539 String displayName = cursor.getString(nameIndex); 540 // Set it to true if we've seen this name before, false otherwise 541 if (displayName != null) { 542 isDuplicateName.put(displayName, isDuplicateName.containsKey(displayName)); 543 } 544 } 545 } 546 547 /** 548 * Null-safe object comparison 549 * 550 * @param s1 551 * @param s2 552 * @return 553 */ 554 public static boolean equals(Object o1, Object o2) { 555 return o1 == null ? o2 == null : o1.equals(o2); 556 } 557 558 public static void setAllowWeekForDetailView(boolean allowWeekView) { 559 mAllowWeekForDetailView = allowWeekView; 560 } 561 562 public static boolean getAllowWeekForDetailView() { 563 return mAllowWeekForDetailView; 564 } 565 566 public static boolean isMultiPaneConfiguration (Context c) { 567 return (c.getResources().getConfiguration().screenLayout & 568 Configuration.SCREENLAYOUT_SIZE_XLARGE) != 0; 569 } 570 571 public static boolean getConfigBool(Context c, int key) { 572 return c.getResources().getBoolean(key); 573 } 574 575 public static int getDisplayColorFromColor(int color) { 576 float[] hsv = new float[3]; 577 Color.colorToHSV(color, hsv); 578 hsv[1] = Math.max(hsv[1] - SATURATION_ADJUST, 0.0f); 579 return Color.HSVToColor(hsv); 580 } 581 582 // A single strand represents one color of events. Events are divided up by 583 // color to make them convenient to draw. The black strand is special in 584 // that it holds conflicting events as well as color settings for allday on 585 // each day. 586 public static class DNAStrand { 587 public float[] points; 588 public int[] allDays; // color for the allday, 0 means no event 589 int position; 590 public int color; 591 int count; 592 } 593 594 // A segment is a single continuous length of time occupied by a single 595 // color. Segments should never span multiple days. 596 private static class DNASegment { 597 int startMinute; // in minutes since the start of the week 598 int endMinute; 599 int color; // Calendar color or black for conflicts 600 int day; // quick reference to the day this segment is on 601 } 602 603 /** 604 * Converts a list of events to a list of segments to draw. Assumes list is 605 * ordered by start time of the events. The function processes events for a 606 * range of days from firstJulianDay to firstJulianDay + dayXs.length - 1. 607 * The algorithm goes over all the events and creates a set of segments 608 * ordered by start time. This list of segments is then converted into a 609 * HashMap of strands which contain the draw points and are organized by 610 * color. The strands can then be drawn by setting the paint color to each 611 * strand's color and calling drawLines on its set of points. The points are 612 * set up using the following parameters. 613 * <ul> 614 * <li>Events between midnight and WORK_DAY_START_MINUTES are compressed 615 * into the first 1/8th of the space between top and bottom.</li> 616 * <li>Events between WORK_DAY_END_MINUTES and the following midnight are 617 * compressed into the last 1/8th of the space between top and bottom</li> 618 * <li>Events between WORK_DAY_START_MINUTES and WORK_DAY_END_MINUTES use 619 * the remaining 3/4ths of the space</li> 620 * <li>All segments drawn will maintain at least minPixels height, except 621 * for conflicts in the first or last 1/8th, which may be smaller</li> 622 * </ul> 623 * 624 * @param firstJulianDay The julian day of the first day of events 625 * @param events A list of events sorted by start time 626 * @param top The lowest y value the dna should be drawn at 627 * @param bottom The highest y value the dna should be drawn at 628 * @param dayXs An array of x values to draw the dna at, one for each day 629 * @param conflictColor the color to use for conflicts 630 * @return 631 */ 632 public static HashMap<Integer, DNAStrand> createDNAStrands(int firstJulianDay, 633 ArrayList<Event> events, int top, int bottom, int minPixels, int[] dayXs, 634 Context context) { 635 636 if (!mMinutesLoaded) { 637 if (context == null) { 638 Log.wtf(TAG, "No context and haven't loaded parameters yet! Can't create DNA."); 639 } 640 Resources res = context.getResources(); 641 CONFLICT_COLOR = res.getColor(R.color.month_dna_conflict_time_color); 642 WORK_DAY_START_MINUTES = res.getInteger(R.integer.work_start_minutes); 643 WORK_DAY_END_MINUTES = res.getInteger(R.integer.work_end_minutes); 644 WORK_DAY_END_LENGTH = DAY_IN_MINUTES - WORK_DAY_END_MINUTES; 645 WORK_DAY_MINUTES = WORK_DAY_END_MINUTES - WORK_DAY_START_MINUTES; 646 mMinutesLoaded = true; 647 } 648 649 if (events == null || events.isEmpty() || dayXs == null || dayXs.length < 1 650 || bottom - top < 8 || minPixels < 0) { 651 Log.e(TAG, 652 "Bad values for createDNAStrands! events:" + events + " dayXs:" 653 + Arrays.toString(dayXs) + " bot-top:" + (bottom - top) + " minPixels:" 654 + minPixels); 655 return null; 656 } 657 658 LinkedList<DNASegment> segments = new LinkedList<DNASegment>(); 659 HashMap<Integer, DNAStrand> strands = new HashMap<Integer, DNAStrand>(); 660 // add a black strand by default, other colors will get added in 661 // the loop 662 DNAStrand blackStrand = new DNAStrand(); 663 blackStrand.color = CONFLICT_COLOR; 664 strands.put(CONFLICT_COLOR, blackStrand); 665 // the min length is the number of minutes that will occupy 666 // MIN_SEGMENT_PIXELS in the 'work day' time slot. This computes the 667 // minutes/pixel * minpx where the number of pixels are 3/4 the total 668 // dna height: 4*(mins/(px * 3/4)) 669 int minMinutes = minPixels * 4 * WORK_DAY_MINUTES / (3 * (bottom - top)); 670 671 // There are slightly fewer than half as many pixels in 1/6 the space, 672 // so round to 2.5x for the min minutes in the non-work area 673 int minOtherMinutes = minMinutes * 5 / 2; 674 int lastJulianDay = firstJulianDay + dayXs.length - 1; 675 676 Event event = new Event(); 677 // Go through all the events for the week 678 for (Event currEvent : events) { 679 // if this event is outside the weeks range skip it 680 if (currEvent.endDay < firstJulianDay || currEvent.startDay > lastJulianDay) { 681 continue; 682 } 683 if (currEvent.drawAsAllday()) { 684 addAllDayToStrands(currEvent, strands, firstJulianDay, dayXs.length); 685 continue; 686 } 687 // Copy the event over so we can clip its start and end to our range 688 currEvent.copyTo(event); 689 if (event.startDay < firstJulianDay) { 690 event.startDay = firstJulianDay; 691 event.startTime = 0; 692 } 693 // If it starts after the work day make sure the start is at least 694 // minPixels from midnight 695 if (event.startTime > DAY_IN_MINUTES - minOtherMinutes) { 696 event.startTime = DAY_IN_MINUTES - minOtherMinutes; 697 } 698 if (event.endDay > lastJulianDay) { 699 event.endDay = lastJulianDay; 700 event.endTime = DAY_IN_MINUTES - 1; 701 } 702 // If the end time is before the work day make sure it ends at least 703 // minPixels after midnight 704 if (event.endTime < minOtherMinutes) { 705 event.endTime = minOtherMinutes; 706 } 707 // If the start and end are on the same day make sure they are at 708 // least minPixels apart. This only needs to be done for times 709 // outside the work day as the min distance for within the work day 710 // is enforced in the segment code. 711 if (event.startDay == event.endDay && 712 event.endTime - event.startTime < minOtherMinutes) { 713 // If it's less than minPixels in an area before the work 714 // day 715 if (event.startTime < WORK_DAY_START_MINUTES) { 716 // extend the end to the first easy guarantee that it's 717 // minPixels 718 event.endTime = Math.min(event.startTime + minOtherMinutes, 719 WORK_DAY_START_MINUTES + minMinutes); 720 // if it's in the area after the work day 721 } else if (event.endTime > WORK_DAY_END_MINUTES) { 722 // First try shifting the end but not past midnight 723 event.endTime = Math.min(event.endTime + minOtherMinutes, DAY_IN_MINUTES - 1); 724 // if it's still too small move the start back 725 if (event.endTime - event.startTime < minOtherMinutes) { 726 event.startTime = event.endTime - minOtherMinutes; 727 } 728 } 729 } 730 731 // This handles adding the first segment 732 if (segments.size() == 0) { 733 addNewSegment(segments, event, strands, firstJulianDay, 0, minMinutes); 734 continue; 735 } 736 // Now compare our current start time to the end time of the last 737 // segment in the list 738 DNASegment lastSegment = segments.getLast(); 739 int startMinute = (event.startDay - firstJulianDay) * DAY_IN_MINUTES + event.startTime; 740 int endMinute = Math.max((event.endDay - firstJulianDay) * DAY_IN_MINUTES 741 + event.endTime, startMinute + minMinutes); 742 743 if (startMinute < 0) { 744 startMinute = 0; 745 } 746 if (endMinute >= WEEK_IN_MINUTES) { 747 endMinute = WEEK_IN_MINUTES - 1; 748 } 749 // If we start before the last segment in the list ends we need to 750 // start going through the list as this may conflict with other 751 // events 752 if (startMinute < lastSegment.endMinute) { 753 int i = segments.size(); 754 // find the last segment this event intersects with 755 while (--i >= 0 && endMinute < segments.get(i).startMinute); 756 757 DNASegment currSegment; 758 // for each segment this event intersects with 759 for (; i >= 0 && startMinute <= (currSegment = segments.get(i)).endMinute; i--) { 760 // if the segment is already a conflict ignore it 761 if (currSegment.color == CONFLICT_COLOR) { 762 continue; 763 } 764 // if the event ends before the segment and wouldn't create 765 // a segment that is too small split off the right side 766 if (endMinute < currSegment.endMinute - minMinutes) { 767 DNASegment rhs = new DNASegment(); 768 rhs.endMinute = currSegment.endMinute; 769 rhs.color = currSegment.color; 770 rhs.startMinute = endMinute + 1; 771 rhs.day = currSegment.day; 772 currSegment.endMinute = endMinute; 773 segments.add(i + 1, rhs); 774 strands.get(rhs.color).count++; 775 if (DEBUG) { 776 Log.d(TAG, "Added rhs, curr:" + currSegment.toString() + " i:" 777 + segments.get(i).toString()); 778 } 779 } 780 // if the event starts after the segment and wouldn't create 781 // a segment that is too small split off the left side 782 if (startMinute > currSegment.startMinute + minMinutes) { 783 DNASegment lhs = new DNASegment(); 784 lhs.startMinute = currSegment.startMinute; 785 lhs.color = currSegment.color; 786 lhs.endMinute = startMinute - 1; 787 lhs.day = currSegment.day; 788 currSegment.startMinute = startMinute; 789 // increment i so that we are at the right position when 790 // referencing the segments to the right and left of the 791 // current segment. 792 segments.add(i++, lhs); 793 strands.get(lhs.color).count++; 794 if (DEBUG) { 795 Log.d(TAG, "Added lhs, curr:" + currSegment.toString() + " i:" 796 + segments.get(i).toString()); 797 } 798 } 799 // if the right side is black merge this with the segment to 800 // the right if they're on the same day and overlap 801 if (i + 1 < segments.size()) { 802 DNASegment rhs = segments.get(i + 1); 803 if (rhs.color == CONFLICT_COLOR && currSegment.day == rhs.day 804 && rhs.startMinute <= currSegment.endMinute + 1) { 805 rhs.startMinute = Math.min(currSegment.startMinute, rhs.startMinute); 806 segments.remove(currSegment); 807 strands.get(currSegment.color).count--; 808 // point at the new current segment 809 currSegment = rhs; 810 } 811 } 812 // if the left side is black merge this with the segment to 813 // the left if they're on the same day and overlap 814 if (i - 1 >= 0) { 815 DNASegment lhs = segments.get(i - 1); 816 if (lhs.color == CONFLICT_COLOR && currSegment.day == lhs.day 817 && lhs.endMinute >= currSegment.startMinute - 1) { 818 lhs.endMinute = Math.max(currSegment.endMinute, lhs.endMinute); 819 segments.remove(currSegment); 820 strands.get(currSegment.color).count--; 821 // point at the new current segment 822 currSegment = lhs; 823 // point i at the new current segment in case new 824 // code is added 825 i--; 826 } 827 } 828 // if we're still not black, decrement the count for the 829 // color being removed, change this to black, and increment 830 // the black count 831 if (currSegment.color != CONFLICT_COLOR) { 832 strands.get(currSegment.color).count--; 833 currSegment.color = CONFLICT_COLOR; 834 strands.get(CONFLICT_COLOR).count++; 835 } 836 } 837 838 } 839 // If this event extends beyond the last segment add a new segment 840 if (endMinute > lastSegment.endMinute) { 841 addNewSegment(segments, event, strands, firstJulianDay, lastSegment.endMinute, 842 minMinutes); 843 } 844 } 845 weaveDNAStrands(segments, firstJulianDay, strands, top, bottom, dayXs); 846 return strands; 847 } 848 849 // This figures out allDay colors as allDay events are found 850 private static void addAllDayToStrands(Event event, HashMap<Integer, DNAStrand> strands, 851 int firstJulianDay, int numDays) { 852 DNAStrand strand = getOrCreateStrand(strands, CONFLICT_COLOR); 853 // if we haven't initialized the allDay portion create it now 854 if (strand.allDays == null) { 855 strand.allDays = new int[numDays]; 856 } 857 858 // For each day this event is on update the color 859 int end = Math.min(event.endDay - firstJulianDay, numDays - 1); 860 for (int i = Math.max(event.startDay - firstJulianDay, 0); i <= end; i++) { 861 if (strand.allDays[i] != 0) { 862 // if this day already had a color, it is now a conflict 863 strand.allDays[i] = CONFLICT_COLOR; 864 } else { 865 // else it's just the color of the event 866 strand.allDays[i] = event.color; 867 } 868 } 869 } 870 871 // This processes all the segments, sorts them by color, and generates a 872 // list of points to draw 873 private static void weaveDNAStrands(LinkedList<DNASegment> segments, int firstJulianDay, 874 HashMap<Integer, DNAStrand> strands, int top, int bottom, int[] dayXs) { 875 // First, get rid of any colors that ended up with no segments 876 Iterator<DNAStrand> strandIterator = strands.values().iterator(); 877 while (strandIterator.hasNext()) { 878 DNAStrand strand = strandIterator.next(); 879 if (strand.count < 1 && strand.allDays == null) { 880 strandIterator.remove(); 881 continue; 882 } 883 strand.points = new float[strand.count * 4]; 884 strand.position = 0; 885 } 886 // Go through each segment and compute its points 887 for (DNASegment segment : segments) { 888 // Add the points to the strand of that color 889 DNAStrand strand = strands.get(segment.color); 890 int dayIndex = segment.day - firstJulianDay; 891 int dayStartMinute = segment.startMinute % DAY_IN_MINUTES; 892 int dayEndMinute = segment.endMinute % DAY_IN_MINUTES; 893 int height = bottom - top; 894 int workDayHeight = height * 3 / 4; 895 int remainderHeight = (height - workDayHeight) / 2; 896 897 int x = dayXs[dayIndex]; 898 int y0 = 0; 899 int y1 = 0; 900 901 y0 = top + getPixelOffsetFromMinutes(dayStartMinute, workDayHeight, remainderHeight); 902 y1 = top + getPixelOffsetFromMinutes(dayEndMinute, workDayHeight, remainderHeight); 903 if (DEBUG) { 904 Log.d(TAG, "Adding " + Integer.toHexString(segment.color) + " at x,y0,y1: " + x 905 + " " + y0 + " " + y1 + " for " + dayStartMinute + " " + dayEndMinute); 906 } 907 strand.points[strand.position++] = x; 908 strand.points[strand.position++] = y0; 909 strand.points[strand.position++] = x; 910 strand.points[strand.position++] = y1; 911 } 912 } 913 914 /** 915 * Compute a pixel offset from the top for a given minute from the work day 916 * height and the height of the top area. 917 */ 918 private static int getPixelOffsetFromMinutes(int minute, int workDayHeight, 919 int remainderHeight) { 920 int y; 921 if (minute < WORK_DAY_START_MINUTES) { 922 y = minute * remainderHeight / WORK_DAY_START_MINUTES; 923 } else if (minute < WORK_DAY_END_MINUTES) { 924 y = remainderHeight + (minute - WORK_DAY_START_MINUTES) * workDayHeight 925 / WORK_DAY_MINUTES; 926 } else { 927 y = remainderHeight + workDayHeight + (minute - WORK_DAY_END_MINUTES) * remainderHeight 928 / WORK_DAY_END_LENGTH; 929 } 930 return y; 931 } 932 933 /** 934 * Add a new segment based on the event provided. This will handle splitting 935 * segments across day boundaries and ensures a minimum size for segments. 936 */ 937 private static void addNewSegment(LinkedList<DNASegment> segments, Event event, 938 HashMap<Integer, DNAStrand> strands, int firstJulianDay, int minStart, int minMinutes) { 939 if (event.startDay > event.endDay) { 940 Log.wtf(TAG, "Event starts after it ends: " + event.toString()); 941 } 942 // If this is a multiday event split it up by day 943 if (event.startDay != event.endDay) { 944 Event lhs = new Event(); 945 lhs.color = event.color; 946 lhs.startDay = event.startDay; 947 // the first day we want the start time to be the actual start time 948 lhs.startTime = event.startTime; 949 lhs.endDay = lhs.startDay; 950 lhs.endTime = DAY_IN_MINUTES - 1; 951 // Nearly recursive iteration! 952 while (lhs.startDay != event.endDay) { 953 addNewSegment(segments, lhs, strands, firstJulianDay, minStart, minMinutes); 954 // The days in between are all day, even though that shouldn't 955 // actually happen due to the allday filtering 956 lhs.startDay++; 957 lhs.endDay = lhs.startDay; 958 lhs.startTime = 0; 959 minStart = 0; 960 } 961 // The last day we want the end time to be the actual end time 962 lhs.endTime = event.endTime; 963 event = lhs; 964 } 965 // Create the new segment and compute its fields 966 DNASegment segment = new DNASegment(); 967 int dayOffset = (event.startDay - firstJulianDay) * DAY_IN_MINUTES; 968 int endOfDay = dayOffset + DAY_IN_MINUTES - 1; 969 // clip the start if needed 970 segment.startMinute = Math.max(dayOffset + event.startTime, minStart); 971 // and extend the end if it's too small, but not beyond the end of the 972 // day 973 int minEnd = Math.min(segment.startMinute + minMinutes, endOfDay); 974 segment.endMinute = Math.max(dayOffset + event.endTime, minEnd); 975 if (segment.endMinute > endOfDay) { 976 segment.endMinute = endOfDay; 977 } 978 979 segment.color = event.color; 980 segment.day = event.startDay; 981 segments.add(segment); 982 // increment the count for the correct color or add a new strand if we 983 // don't have that color yet 984 DNAStrand strand = getOrCreateStrand(strands, segment.color); 985 strand.count++; 986 } 987 988 /** 989 * Try to get a strand of the given color. Create it if it doesn't exist. 990 */ 991 private static DNAStrand getOrCreateStrand(HashMap<Integer, DNAStrand> strands, int color) { 992 DNAStrand strand = strands.get(color); 993 if (strand == null) { 994 strand = new DNAStrand(); 995 strand.color = color; 996 strand.count = 0; 997 strands.put(strand.color, strand); 998 } 999 return strand; 1000 } 1001 1002 /** 1003 * Sends an intent to launch the top level Calendar view. 1004 * 1005 * @param context 1006 */ 1007 public static void returnToCalendarHome(Context context) { 1008 Intent launchIntent = new Intent(context, AllInOneActivity.class); 1009 launchIntent.setAction(Intent.ACTION_VIEW); 1010 launchIntent.setData(Uri.parse("content://com.android.calendar/time")); 1011 launchIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 1012 context.startActivity(launchIntent); 1013 } 1014 1015 /** 1016 * This sets up a search view to use Calendar's search suggestions provider 1017 * and to allow refining the search. 1018 * 1019 * @param view The {@link SearchView} to set up 1020 * @param act The activity using the view 1021 */ 1022 public static void setUpSearchView(SearchView view, Activity act) { 1023 SearchManager searchManager = (SearchManager) act.getSystemService(Context.SEARCH_SERVICE); 1024 view.setSearchableInfo(searchManager.getSearchableInfo(act.getComponentName())); 1025 view.setQueryRefinementEnabled(true); 1026 } 1027 1028 /** 1029 * Given a context and a time in millis since unix epoch figures out the 1030 * correct week of the year for that time. 1031 * 1032 * @param millisSinceEpoch 1033 * @return 1034 */ 1035 public static int getWeekNumberFromTime(long millisSinceEpoch, Context context) { 1036 Time weekTime = new Time(getTimeZone(context, null)); 1037 weekTime.set(millisSinceEpoch); 1038 weekTime.normalize(true); 1039 int firstDayOfWeek = getFirstDayOfWeek(context); 1040 // if the date is on Saturday or Sunday and the start of the week 1041 // isn't Monday we may need to shift the date to be in the correct 1042 // week 1043 if (weekTime.weekDay == Time.SUNDAY 1044 && (firstDayOfWeek == Time.SUNDAY || firstDayOfWeek == Time.SATURDAY)) { 1045 weekTime.monthDay++; 1046 weekTime.normalize(true); 1047 } else if (weekTime.weekDay == Time.SATURDAY && firstDayOfWeek == Time.SATURDAY) { 1048 weekTime.monthDay += 2; 1049 weekTime.normalize(true); 1050 } 1051 return weekTime.getWeekNumber(); 1052 } 1053 1054 /** 1055 * Formats a day of the week string. This is either just the name of the day 1056 * or a combination of yesterday/today/tomorrow and the day of the week. 1057 * 1058 * @param julianDay The julian day to get the string for 1059 * @param todayJulianDay The julian day for today's date 1060 * @param millis A utc millis since epoch time that falls on julian day 1061 * @param context The calling context, used to get the timezone and do the 1062 * formatting 1063 * @return 1064 */ 1065 public static String getDayOfWeekString(int julianDay, int todayJulianDay, long millis, 1066 Context context) { 1067 String tz = getTimeZone(context, null); 1068 int flags = DateUtils.FORMAT_SHOW_WEEKDAY; 1069 String dayViewText; 1070 if (julianDay == todayJulianDay) { 1071 dayViewText = context.getString(R.string.agenda_today, 1072 mTZUtils.formatDateRange(context, millis, millis, flags).toString()); 1073 } else if (julianDay == todayJulianDay - 1) { 1074 dayViewText = context.getString(R.string.agenda_yesterday, 1075 mTZUtils.formatDateRange(context, millis, millis, flags).toString()); 1076 } else if (julianDay == todayJulianDay + 1) { 1077 dayViewText = context.getString(R.string.agenda_tomorrow, 1078 mTZUtils.formatDateRange(context, millis, millis, flags).toString()); 1079 } else { 1080 dayViewText = mTZUtils.formatDateRange(context, millis, millis, flags).toString(); 1081 } 1082 dayViewText = dayViewText.toUpperCase(); 1083 return dayViewText; 1084 } 1085} 1086