Alan Viverette | 4612740 | 2014-11-13 10:50:37 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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 android.widget; |
| 18 | |
| 19 | import com.android.internal.R; |
| 20 | |
| 21 | import android.app.Service; |
| 22 | import android.content.Context; |
| 23 | import android.content.res.Configuration; |
| 24 | import android.content.res.TypedArray; |
| 25 | import android.database.DataSetObserver; |
| 26 | import android.graphics.Canvas; |
| 27 | import android.graphics.Paint; |
| 28 | import android.graphics.Rect; |
| 29 | import android.graphics.drawable.Drawable; |
| 30 | import android.text.TextUtils; |
| 31 | import android.text.format.DateUtils; |
| 32 | import android.util.AttributeSet; |
| 33 | import android.util.DisplayMetrics; |
| 34 | import android.util.TypedValue; |
| 35 | import android.view.GestureDetector; |
| 36 | import android.view.LayoutInflater; |
| 37 | import android.view.MotionEvent; |
| 38 | import android.view.View; |
| 39 | import android.view.ViewGroup; |
| 40 | |
| 41 | import java.util.Calendar; |
| 42 | import java.util.Locale; |
| 43 | |
| 44 | import libcore.icu.LocaleData; |
| 45 | |
| 46 | /** |
| 47 | * A delegate implementing the legacy CalendarView |
| 48 | */ |
| 49 | class CalendarViewLegacyDelegate extends CalendarView.AbstractCalendarViewDelegate { |
| 50 | /** |
| 51 | * Default value whether to show week number. |
| 52 | */ |
| 53 | private static final boolean DEFAULT_SHOW_WEEK_NUMBER = true; |
| 54 | |
| 55 | /** |
| 56 | * The number of milliseconds in a day.e |
| 57 | */ |
| 58 | private static final long MILLIS_IN_DAY = 86400000L; |
| 59 | |
| 60 | /** |
| 61 | * The number of day in a week. |
| 62 | */ |
| 63 | private static final int DAYS_PER_WEEK = 7; |
| 64 | |
| 65 | /** |
| 66 | * The number of milliseconds in a week. |
| 67 | */ |
| 68 | private static final long MILLIS_IN_WEEK = DAYS_PER_WEEK * MILLIS_IN_DAY; |
| 69 | |
| 70 | /** |
| 71 | * Affects when the month selection will change while scrolling upe |
| 72 | */ |
| 73 | private static final int SCROLL_HYST_WEEKS = 2; |
| 74 | |
| 75 | /** |
| 76 | * How long the GoTo fling animation should last. |
| 77 | */ |
| 78 | private static final int GOTO_SCROLL_DURATION = 1000; |
| 79 | |
| 80 | /** |
| 81 | * The duration of the adjustment upon a user scroll in milliseconds. |
| 82 | */ |
| 83 | private static final int ADJUSTMENT_SCROLL_DURATION = 500; |
| 84 | |
| 85 | /** |
| 86 | * How long to wait after receiving an onScrollStateChanged notification |
| 87 | * before acting on it. |
| 88 | */ |
| 89 | private static final int SCROLL_CHANGE_DELAY = 40; |
| 90 | |
| 91 | private static final int DEFAULT_SHOWN_WEEK_COUNT = 6; |
| 92 | |
| 93 | private static final int DEFAULT_DATE_TEXT_SIZE = 14; |
| 94 | |
| 95 | private static final int UNSCALED_SELECTED_DATE_VERTICAL_BAR_WIDTH = 6; |
| 96 | |
| 97 | private static final int UNSCALED_WEEK_MIN_VISIBLE_HEIGHT = 12; |
| 98 | |
| 99 | private static final int UNSCALED_LIST_SCROLL_TOP_OFFSET = 2; |
| 100 | |
| 101 | private static final int UNSCALED_BOTTOM_BUFFER = 20; |
| 102 | |
| 103 | private static final int UNSCALED_WEEK_SEPARATOR_LINE_WIDTH = 1; |
| 104 | |
| 105 | private static final int DEFAULT_WEEK_DAY_TEXT_APPEARANCE_RES_ID = -1; |
| 106 | |
| 107 | private final int mWeekSeperatorLineWidth; |
| 108 | |
| 109 | private int mDateTextSize; |
| 110 | |
| 111 | private Drawable mSelectedDateVerticalBar; |
| 112 | |
| 113 | private final int mSelectedDateVerticalBarWidth; |
| 114 | |
| 115 | private int mSelectedWeekBackgroundColor; |
| 116 | |
| 117 | private int mFocusedMonthDateColor; |
| 118 | |
| 119 | private int mUnfocusedMonthDateColor; |
| 120 | |
| 121 | private int mWeekSeparatorLineColor; |
| 122 | |
| 123 | private int mWeekNumberColor; |
| 124 | |
| 125 | private int mWeekDayTextAppearanceResId; |
| 126 | |
| 127 | private int mDateTextAppearanceResId; |
| 128 | |
| 129 | /** |
| 130 | * The top offset of the weeks list. |
| 131 | */ |
| 132 | private int mListScrollTopOffset = 2; |
| 133 | |
| 134 | /** |
| 135 | * The visible height of a week view. |
| 136 | */ |
| 137 | private int mWeekMinVisibleHeight = 12; |
| 138 | |
| 139 | /** |
| 140 | * The visible height of a week view. |
| 141 | */ |
| 142 | private int mBottomBuffer = 20; |
| 143 | |
| 144 | /** |
| 145 | * The number of shown weeks. |
| 146 | */ |
| 147 | private int mShownWeekCount; |
| 148 | |
| 149 | /** |
| 150 | * Flag whether to show the week number. |
| 151 | */ |
| 152 | private boolean mShowWeekNumber; |
| 153 | |
| 154 | /** |
| 155 | * The number of day per week to be shown. |
| 156 | */ |
| 157 | private int mDaysPerWeek = 7; |
| 158 | |
| 159 | /** |
| 160 | * The friction of the week list while flinging. |
| 161 | */ |
| 162 | private float mFriction = .05f; |
| 163 | |
| 164 | /** |
| 165 | * Scale for adjusting velocity of the week list while flinging. |
| 166 | */ |
| 167 | private float mVelocityScale = 0.333f; |
| 168 | |
| 169 | /** |
| 170 | * The adapter for the weeks list. |
| 171 | */ |
| 172 | private WeeksAdapter mAdapter; |
| 173 | |
| 174 | /** |
| 175 | * The weeks list. |
| 176 | */ |
| 177 | private ListView mListView; |
| 178 | |
| 179 | /** |
| 180 | * The name of the month to display. |
| 181 | */ |
| 182 | private TextView mMonthName; |
| 183 | |
| 184 | /** |
| 185 | * The header with week day names. |
| 186 | */ |
| 187 | private ViewGroup mDayNamesHeader; |
| 188 | |
| 189 | /** |
| 190 | * Cached abbreviations for day of week names. |
| 191 | */ |
| 192 | private String[] mDayNamesShort; |
| 193 | |
| 194 | /** |
| 195 | * Cached full-length day of week names. |
| 196 | */ |
| 197 | private String[] mDayNamesLong; |
| 198 | |
| 199 | /** |
| 200 | * The first day of the week. |
| 201 | */ |
| 202 | private int mFirstDayOfWeek; |
| 203 | |
| 204 | /** |
| 205 | * Which month should be displayed/highlighted [0-11]. |
| 206 | */ |
| 207 | private int mCurrentMonthDisplayed = -1; |
| 208 | |
| 209 | /** |
| 210 | * Used for tracking during a scroll. |
| 211 | */ |
| 212 | private long mPreviousScrollPosition; |
| 213 | |
| 214 | /** |
| 215 | * Used for tracking which direction the view is scrolling. |
| 216 | */ |
| 217 | private boolean mIsScrollingUp = false; |
| 218 | |
| 219 | /** |
| 220 | * The previous scroll state of the weeks ListView. |
| 221 | */ |
| 222 | private int mPreviousScrollState = AbsListView.OnScrollListener.SCROLL_STATE_IDLE; |
| 223 | |
| 224 | /** |
| 225 | * The current scroll state of the weeks ListView. |
| 226 | */ |
| 227 | private int mCurrentScrollState = AbsListView.OnScrollListener.SCROLL_STATE_IDLE; |
| 228 | |
| 229 | /** |
| 230 | * Listener for changes in the selected day. |
| 231 | */ |
| 232 | private CalendarView.OnDateChangeListener mOnDateChangeListener; |
| 233 | |
| 234 | /** |
| 235 | * Command for adjusting the position after a scroll/fling. |
| 236 | */ |
| 237 | private ScrollStateRunnable mScrollStateChangedRunnable = new ScrollStateRunnable(); |
| 238 | |
| 239 | /** |
| 240 | * Temporary instance to avoid multiple instantiations. |
| 241 | */ |
| 242 | private Calendar mTempDate; |
| 243 | |
| 244 | /** |
| 245 | * The first day of the focused month. |
| 246 | */ |
| 247 | private Calendar mFirstDayOfMonth; |
| 248 | |
| 249 | /** |
| 250 | * The start date of the range supported by this picker. |
| 251 | */ |
| 252 | private Calendar mMinDate; |
| 253 | |
| 254 | /** |
| 255 | * The end date of the range supported by this picker. |
| 256 | */ |
| 257 | private Calendar mMaxDate; |
| 258 | |
| 259 | CalendarViewLegacyDelegate(CalendarView delegator, Context context, AttributeSet attrs, |
| 260 | int defStyleAttr, int defStyleRes) { |
| 261 | super(delegator, context); |
| 262 | |
| 263 | final TypedArray a = context.obtainStyledAttributes(attrs, |
| 264 | R.styleable.CalendarView, defStyleAttr, defStyleRes); |
| 265 | mShowWeekNumber = a.getBoolean(R.styleable.CalendarView_showWeekNumber, |
| 266 | DEFAULT_SHOW_WEEK_NUMBER); |
| 267 | mFirstDayOfWeek = a.getInt(R.styleable.CalendarView_firstDayOfWeek, |
| 268 | LocaleData.get(Locale.getDefault()).firstDayOfWeek); |
| 269 | final String minDate = a.getString(R.styleable.CalendarView_minDate); |
| 270 | if (TextUtils.isEmpty(minDate) || !parseDate(minDate, mMinDate)) { |
| 271 | parseDate(DEFAULT_MIN_DATE, mMinDate); |
| 272 | } |
| 273 | final String maxDate = a.getString(R.styleable.CalendarView_maxDate); |
| 274 | if (TextUtils.isEmpty(maxDate) || !parseDate(maxDate, mMaxDate)) { |
| 275 | parseDate(DEFAULT_MAX_DATE, mMaxDate); |
| 276 | } |
| 277 | if (mMaxDate.before(mMinDate)) { |
| 278 | throw new IllegalArgumentException("Max date cannot be before min date."); |
| 279 | } |
| 280 | mShownWeekCount = a.getInt(R.styleable.CalendarView_shownWeekCount, |
| 281 | DEFAULT_SHOWN_WEEK_COUNT); |
| 282 | mSelectedWeekBackgroundColor = a.getColor( |
| 283 | R.styleable.CalendarView_selectedWeekBackgroundColor, 0); |
| 284 | mFocusedMonthDateColor = a.getColor( |
| 285 | R.styleable.CalendarView_focusedMonthDateColor, 0); |
| 286 | mUnfocusedMonthDateColor = a.getColor( |
| 287 | R.styleable.CalendarView_unfocusedMonthDateColor, 0); |
| 288 | mWeekSeparatorLineColor = a.getColor( |
| 289 | R.styleable.CalendarView_weekSeparatorLineColor, 0); |
| 290 | mWeekNumberColor = a.getColor(R.styleable.CalendarView_weekNumberColor, 0); |
| 291 | mSelectedDateVerticalBar = a.getDrawable( |
| 292 | R.styleable.CalendarView_selectedDateVerticalBar); |
| 293 | |
| 294 | mDateTextAppearanceResId = a.getResourceId( |
| 295 | R.styleable.CalendarView_dateTextAppearance, R.style.TextAppearance_Small); |
| 296 | updateDateTextSize(); |
| 297 | |
| 298 | mWeekDayTextAppearanceResId = a.getResourceId( |
| 299 | R.styleable.CalendarView_weekDayTextAppearance, |
| 300 | DEFAULT_WEEK_DAY_TEXT_APPEARANCE_RES_ID); |
| 301 | a.recycle(); |
| 302 | |
| 303 | DisplayMetrics displayMetrics = mDelegator.getResources().getDisplayMetrics(); |
| 304 | mWeekMinVisibleHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, |
| 305 | UNSCALED_WEEK_MIN_VISIBLE_HEIGHT, displayMetrics); |
| 306 | mListScrollTopOffset = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, |
| 307 | UNSCALED_LIST_SCROLL_TOP_OFFSET, displayMetrics); |
| 308 | mBottomBuffer = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, |
| 309 | UNSCALED_BOTTOM_BUFFER, displayMetrics); |
| 310 | mSelectedDateVerticalBarWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, |
| 311 | UNSCALED_SELECTED_DATE_VERTICAL_BAR_WIDTH, displayMetrics); |
| 312 | mWeekSeperatorLineWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, |
| 313 | UNSCALED_WEEK_SEPARATOR_LINE_WIDTH, displayMetrics); |
| 314 | |
| 315 | LayoutInflater layoutInflater = (LayoutInflater) mContext |
| 316 | .getSystemService(Service.LAYOUT_INFLATER_SERVICE); |
| 317 | View content = layoutInflater.inflate(R.layout.calendar_view, null, false); |
| 318 | mDelegator.addView(content); |
| 319 | |
| 320 | mListView = (ListView) mDelegator.findViewById(R.id.list); |
| 321 | mDayNamesHeader = (ViewGroup) content.findViewById(R.id.day_names); |
| 322 | mMonthName = (TextView) content.findViewById(R.id.month_name); |
| 323 | |
| 324 | setUpHeader(); |
| 325 | setUpListView(); |
| 326 | setUpAdapter(); |
| 327 | |
| 328 | // go to today or whichever is close to today min or max date |
| 329 | mTempDate.setTimeInMillis(System.currentTimeMillis()); |
| 330 | if (mTempDate.before(mMinDate)) { |
| 331 | goTo(mMinDate, false, true, true); |
| 332 | } else if (mMaxDate.before(mTempDate)) { |
| 333 | goTo(mMaxDate, false, true, true); |
| 334 | } else { |
| 335 | goTo(mTempDate, false, true, true); |
| 336 | } |
| 337 | |
| 338 | mDelegator.invalidate(); |
| 339 | } |
| 340 | |
| 341 | @Override |
| 342 | public void setShownWeekCount(int count) { |
| 343 | if (mShownWeekCount != count) { |
| 344 | mShownWeekCount = count; |
| 345 | mDelegator.invalidate(); |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | @Override |
| 350 | public int getShownWeekCount() { |
| 351 | return mShownWeekCount; |
| 352 | } |
| 353 | |
| 354 | @Override |
| 355 | public void setSelectedWeekBackgroundColor(int color) { |
| 356 | if (mSelectedWeekBackgroundColor != color) { |
| 357 | mSelectedWeekBackgroundColor = color; |
| 358 | final int childCount = mListView.getChildCount(); |
| 359 | for (int i = 0; i < childCount; i++) { |
| 360 | WeekView weekView = (WeekView) mListView.getChildAt(i); |
| 361 | if (weekView.mHasSelectedDay) { |
| 362 | weekView.invalidate(); |
| 363 | } |
| 364 | } |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | @Override |
| 369 | public int getSelectedWeekBackgroundColor() { |
| 370 | return mSelectedWeekBackgroundColor; |
| 371 | } |
| 372 | |
| 373 | @Override |
| 374 | public void setFocusedMonthDateColor(int color) { |
| 375 | if (mFocusedMonthDateColor != color) { |
| 376 | mFocusedMonthDateColor = color; |
| 377 | final int childCount = mListView.getChildCount(); |
| 378 | for (int i = 0; i < childCount; i++) { |
| 379 | WeekView weekView = (WeekView) mListView.getChildAt(i); |
| 380 | if (weekView.mHasFocusedDay) { |
| 381 | weekView.invalidate(); |
| 382 | } |
| 383 | } |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | @Override |
| 388 | public int getFocusedMonthDateColor() { |
| 389 | return mFocusedMonthDateColor; |
| 390 | } |
| 391 | |
| 392 | @Override |
| 393 | public void setUnfocusedMonthDateColor(int color) { |
| 394 | if (mUnfocusedMonthDateColor != color) { |
| 395 | mUnfocusedMonthDateColor = color; |
| 396 | final int childCount = mListView.getChildCount(); |
| 397 | for (int i = 0; i < childCount; i++) { |
| 398 | WeekView weekView = (WeekView) mListView.getChildAt(i); |
| 399 | if (weekView.mHasUnfocusedDay) { |
| 400 | weekView.invalidate(); |
| 401 | } |
| 402 | } |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | @Override |
| 407 | public int getUnfocusedMonthDateColor() { |
| 408 | return mFocusedMonthDateColor; |
| 409 | } |
| 410 | |
| 411 | @Override |
| 412 | public void setWeekNumberColor(int color) { |
| 413 | if (mWeekNumberColor != color) { |
| 414 | mWeekNumberColor = color; |
| 415 | if (mShowWeekNumber) { |
| 416 | invalidateAllWeekViews(); |
| 417 | } |
| 418 | } |
| 419 | } |
| 420 | |
| 421 | @Override |
| 422 | public int getWeekNumberColor() { |
| 423 | return mWeekNumberColor; |
| 424 | } |
| 425 | |
| 426 | @Override |
| 427 | public void setWeekSeparatorLineColor(int color) { |
| 428 | if (mWeekSeparatorLineColor != color) { |
| 429 | mWeekSeparatorLineColor = color; |
| 430 | invalidateAllWeekViews(); |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | @Override |
| 435 | public int getWeekSeparatorLineColor() { |
| 436 | return mWeekSeparatorLineColor; |
| 437 | } |
| 438 | |
| 439 | @Override |
| 440 | public void setSelectedDateVerticalBar(int resourceId) { |
| 441 | Drawable drawable = mDelegator.getContext().getDrawable(resourceId); |
| 442 | setSelectedDateVerticalBar(drawable); |
| 443 | } |
| 444 | |
| 445 | @Override |
| 446 | public void setSelectedDateVerticalBar(Drawable drawable) { |
| 447 | if (mSelectedDateVerticalBar != drawable) { |
| 448 | mSelectedDateVerticalBar = drawable; |
| 449 | final int childCount = mListView.getChildCount(); |
| 450 | for (int i = 0; i < childCount; i++) { |
| 451 | WeekView weekView = (WeekView) mListView.getChildAt(i); |
| 452 | if (weekView.mHasSelectedDay) { |
| 453 | weekView.invalidate(); |
| 454 | } |
| 455 | } |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | @Override |
| 460 | public Drawable getSelectedDateVerticalBar() { |
| 461 | return mSelectedDateVerticalBar; |
| 462 | } |
| 463 | |
| 464 | @Override |
| 465 | public void setWeekDayTextAppearance(int resourceId) { |
| 466 | if (mWeekDayTextAppearanceResId != resourceId) { |
| 467 | mWeekDayTextAppearanceResId = resourceId; |
| 468 | setUpHeader(); |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | @Override |
| 473 | public int getWeekDayTextAppearance() { |
| 474 | return mWeekDayTextAppearanceResId; |
| 475 | } |
| 476 | |
| 477 | @Override |
| 478 | public void setDateTextAppearance(int resourceId) { |
| 479 | if (mDateTextAppearanceResId != resourceId) { |
| 480 | mDateTextAppearanceResId = resourceId; |
| 481 | updateDateTextSize(); |
| 482 | invalidateAllWeekViews(); |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | @Override |
| 487 | public int getDateTextAppearance() { |
| 488 | return mDateTextAppearanceResId; |
| 489 | } |
| 490 | |
| 491 | @Override |
| 492 | public void setMinDate(long minDate) { |
| 493 | mTempDate.setTimeInMillis(minDate); |
| 494 | if (isSameDate(mTempDate, mMinDate)) { |
| 495 | return; |
| 496 | } |
| 497 | mMinDate.setTimeInMillis(minDate); |
| 498 | // make sure the current date is not earlier than |
| 499 | // the new min date since the latter is used for |
| 500 | // calculating the indices in the adapter thus |
| 501 | // avoiding out of bounds error |
| 502 | Calendar date = mAdapter.mSelectedDate; |
| 503 | if (date.before(mMinDate)) { |
| 504 | mAdapter.setSelectedDay(mMinDate); |
| 505 | } |
| 506 | // reinitialize the adapter since its range depends on min date |
| 507 | mAdapter.init(); |
| 508 | if (date.before(mMinDate)) { |
| 509 | setDate(mTempDate.getTimeInMillis()); |
| 510 | } else { |
| 511 | // we go to the current date to force the ListView to query its |
| 512 | // adapter for the shown views since we have changed the adapter |
| 513 | // range and the base from which the later calculates item indices |
| 514 | // note that calling setDate will not work since the date is the same |
| 515 | goTo(date, false, true, false); |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | @Override |
| 520 | public long getMinDate() { |
| 521 | return mMinDate.getTimeInMillis(); |
| 522 | } |
| 523 | |
| 524 | @Override |
| 525 | public void setMaxDate(long maxDate) { |
| 526 | mTempDate.setTimeInMillis(maxDate); |
| 527 | if (isSameDate(mTempDate, mMaxDate)) { |
| 528 | return; |
| 529 | } |
| 530 | mMaxDate.setTimeInMillis(maxDate); |
| 531 | // reinitialize the adapter since its range depends on max date |
| 532 | mAdapter.init(); |
| 533 | Calendar date = mAdapter.mSelectedDate; |
| 534 | if (date.after(mMaxDate)) { |
| 535 | setDate(mMaxDate.getTimeInMillis()); |
| 536 | } else { |
| 537 | // we go to the current date to force the ListView to query its |
| 538 | // adapter for the shown views since we have changed the adapter |
| 539 | // range and the base from which the later calculates item indices |
| 540 | // note that calling setDate will not work since the date is the same |
| 541 | goTo(date, false, true, false); |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | @Override |
| 546 | public long getMaxDate() { |
| 547 | return mMaxDate.getTimeInMillis(); |
| 548 | } |
| 549 | |
| 550 | @Override |
| 551 | public void setShowWeekNumber(boolean showWeekNumber) { |
| 552 | if (mShowWeekNumber == showWeekNumber) { |
| 553 | return; |
| 554 | } |
| 555 | mShowWeekNumber = showWeekNumber; |
| 556 | mAdapter.notifyDataSetChanged(); |
| 557 | setUpHeader(); |
| 558 | } |
| 559 | |
| 560 | @Override |
| 561 | public boolean getShowWeekNumber() { |
| 562 | return mShowWeekNumber; |
| 563 | } |
| 564 | |
| 565 | @Override |
| 566 | public void setFirstDayOfWeek(int firstDayOfWeek) { |
| 567 | if (mFirstDayOfWeek == firstDayOfWeek) { |
| 568 | return; |
| 569 | } |
| 570 | mFirstDayOfWeek = firstDayOfWeek; |
| 571 | mAdapter.init(); |
| 572 | mAdapter.notifyDataSetChanged(); |
| 573 | setUpHeader(); |
| 574 | } |
| 575 | |
| 576 | @Override |
| 577 | public int getFirstDayOfWeek() { |
| 578 | return mFirstDayOfWeek; |
| 579 | } |
| 580 | |
| 581 | @Override |
| 582 | public void setDate(long date) { |
| 583 | setDate(date, false, false); |
| 584 | } |
| 585 | |
| 586 | @Override |
| 587 | public void setDate(long date, boolean animate, boolean center) { |
| 588 | mTempDate.setTimeInMillis(date); |
| 589 | if (isSameDate(mTempDate, mAdapter.mSelectedDate)) { |
| 590 | return; |
| 591 | } |
| 592 | goTo(mTempDate, animate, true, center); |
| 593 | } |
| 594 | |
| 595 | @Override |
| 596 | public long getDate() { |
| 597 | return mAdapter.mSelectedDate.getTimeInMillis(); |
| 598 | } |
| 599 | |
| 600 | @Override |
| 601 | public void setOnDateChangeListener(CalendarView.OnDateChangeListener listener) { |
| 602 | mOnDateChangeListener = listener; |
| 603 | } |
| 604 | |
| 605 | @Override |
| 606 | public void onConfigurationChanged(Configuration newConfig) { |
| 607 | setCurrentLocale(newConfig.locale); |
| 608 | } |
| 609 | |
| 610 | /** |
| 611 | * Sets the current locale. |
| 612 | * |
| 613 | * @param locale The current locale. |
| 614 | */ |
| 615 | @Override |
| 616 | protected void setCurrentLocale(Locale locale) { |
| 617 | super.setCurrentLocale(locale); |
| 618 | |
| 619 | mTempDate = getCalendarForLocale(mTempDate, locale); |
| 620 | mFirstDayOfMonth = getCalendarForLocale(mFirstDayOfMonth, locale); |
| 621 | mMinDate = getCalendarForLocale(mMinDate, locale); |
| 622 | mMaxDate = getCalendarForLocale(mMaxDate, locale); |
| 623 | } |
| 624 | private void updateDateTextSize() { |
| 625 | TypedArray dateTextAppearance = mDelegator.getContext().obtainStyledAttributes( |
| 626 | mDateTextAppearanceResId, R.styleable.TextAppearance); |
| 627 | mDateTextSize = dateTextAppearance.getDimensionPixelSize( |
| 628 | R.styleable.TextAppearance_textSize, DEFAULT_DATE_TEXT_SIZE); |
| 629 | dateTextAppearance.recycle(); |
| 630 | } |
| 631 | |
| 632 | /** |
| 633 | * Invalidates all week views. |
| 634 | */ |
| 635 | private void invalidateAllWeekViews() { |
| 636 | final int childCount = mListView.getChildCount(); |
| 637 | for (int i = 0; i < childCount; i++) { |
| 638 | View view = mListView.getChildAt(i); |
| 639 | view.invalidate(); |
| 640 | } |
| 641 | } |
| 642 | |
| 643 | /** |
| 644 | * Gets a calendar for locale bootstrapped with the value of a given calendar. |
| 645 | * |
| 646 | * @param oldCalendar The old calendar. |
| 647 | * @param locale The locale. |
| 648 | */ |
| 649 | private static Calendar getCalendarForLocale(Calendar oldCalendar, Locale locale) { |
| 650 | if (oldCalendar == null) { |
| 651 | return Calendar.getInstance(locale); |
| 652 | } else { |
| 653 | final long currentTimeMillis = oldCalendar.getTimeInMillis(); |
| 654 | Calendar newCalendar = Calendar.getInstance(locale); |
| 655 | newCalendar.setTimeInMillis(currentTimeMillis); |
| 656 | return newCalendar; |
| 657 | } |
| 658 | } |
| 659 | |
| 660 | /** |
| 661 | * @return True if the <code>firstDate</code> is the same as the <code> |
| 662 | * secondDate</code>. |
| 663 | */ |
| 664 | private static boolean isSameDate(Calendar firstDate, Calendar secondDate) { |
| 665 | return (firstDate.get(Calendar.DAY_OF_YEAR) == secondDate.get(Calendar.DAY_OF_YEAR) |
| 666 | && firstDate.get(Calendar.YEAR) == secondDate.get(Calendar.YEAR)); |
| 667 | } |
| 668 | |
| 669 | /** |
| 670 | * Creates a new adapter if necessary and sets up its parameters. |
| 671 | */ |
| 672 | private void setUpAdapter() { |
| 673 | if (mAdapter == null) { |
| 674 | mAdapter = new WeeksAdapter(mContext); |
| 675 | mAdapter.registerDataSetObserver(new DataSetObserver() { |
| 676 | @Override |
| 677 | public void onChanged() { |
| 678 | if (mOnDateChangeListener != null) { |
| 679 | Calendar selectedDay = mAdapter.getSelectedDay(); |
| 680 | mOnDateChangeListener.onSelectedDayChange(mDelegator, |
| 681 | selectedDay.get(Calendar.YEAR), |
| 682 | selectedDay.get(Calendar.MONTH), |
| 683 | selectedDay.get(Calendar.DAY_OF_MONTH)); |
| 684 | } |
| 685 | } |
| 686 | }); |
| 687 | mListView.setAdapter(mAdapter); |
| 688 | } |
| 689 | |
| 690 | // refresh the view with the new parameters |
| 691 | mAdapter.notifyDataSetChanged(); |
| 692 | } |
| 693 | |
| 694 | /** |
| 695 | * Sets up the strings to be used by the header. |
| 696 | */ |
| 697 | private void setUpHeader() { |
| 698 | mDayNamesShort = new String[mDaysPerWeek]; |
| 699 | mDayNamesLong = new String[mDaysPerWeek]; |
| 700 | for (int i = mFirstDayOfWeek, count = mFirstDayOfWeek + mDaysPerWeek; i < count; i++) { |
| 701 | int calendarDay = (i > Calendar.SATURDAY) ? i - Calendar.SATURDAY : i; |
| 702 | mDayNamesShort[i - mFirstDayOfWeek] = DateUtils.getDayOfWeekString(calendarDay, |
| 703 | DateUtils.LENGTH_SHORTEST); |
| 704 | mDayNamesLong[i - mFirstDayOfWeek] = DateUtils.getDayOfWeekString(calendarDay, |
| 705 | DateUtils.LENGTH_LONG); |
| 706 | } |
| 707 | |
| 708 | TextView label = (TextView) mDayNamesHeader.getChildAt(0); |
| 709 | if (mShowWeekNumber) { |
| 710 | label.setVisibility(View.VISIBLE); |
| 711 | } else { |
| 712 | label.setVisibility(View.GONE); |
| 713 | } |
| 714 | for (int i = 1, count = mDayNamesHeader.getChildCount(); i < count; i++) { |
| 715 | label = (TextView) mDayNamesHeader.getChildAt(i); |
| 716 | if (mWeekDayTextAppearanceResId > -1) { |
| 717 | label.setTextAppearance(mContext, mWeekDayTextAppearanceResId); |
| 718 | } |
| 719 | if (i < mDaysPerWeek + 1) { |
| 720 | label.setText(mDayNamesShort[i - 1]); |
| 721 | label.setContentDescription(mDayNamesLong[i - 1]); |
| 722 | label.setVisibility(View.VISIBLE); |
| 723 | } else { |
| 724 | label.setVisibility(View.GONE); |
| 725 | } |
| 726 | } |
| 727 | mDayNamesHeader.invalidate(); |
| 728 | } |
| 729 | |
| 730 | /** |
| 731 | * Sets all the required fields for the list view. |
| 732 | */ |
| 733 | private void setUpListView() { |
| 734 | // Configure the listview |
| 735 | mListView.setDivider(null); |
| 736 | mListView.setItemsCanFocus(true); |
| 737 | mListView.setVerticalScrollBarEnabled(false); |
| 738 | mListView.setOnScrollListener(new AbsListView.OnScrollListener() { |
| 739 | public void onScrollStateChanged(AbsListView view, int scrollState) { |
| 740 | CalendarViewLegacyDelegate.this.onScrollStateChanged(view, scrollState); |
| 741 | } |
| 742 | |
| 743 | public void onScroll( |
| 744 | AbsListView view, int firstVisibleItem, int visibleItemCount, |
| 745 | int totalItemCount) { |
| 746 | CalendarViewLegacyDelegate.this.onScroll(view, firstVisibleItem, |
| 747 | visibleItemCount, totalItemCount); |
| 748 | } |
| 749 | }); |
| 750 | // Make the scrolling behavior nicer |
| 751 | mListView.setFriction(mFriction); |
| 752 | mListView.setVelocityScale(mVelocityScale); |
| 753 | } |
| 754 | |
| 755 | /** |
| 756 | * This moves to the specified time in the view. If the time is not already |
| 757 | * in range it will move the list so that the first of the month containing |
| 758 | * the time is at the top of the view. If the new time is already in view |
| 759 | * the list will not be scrolled unless forceScroll is true. This time may |
| 760 | * optionally be highlighted as selected as well. |
| 761 | * |
| 762 | * @param date The time to move to. |
| 763 | * @param animate Whether to scroll to the given time or just redraw at the |
| 764 | * new location. |
| 765 | * @param setSelected Whether to set the given time as selected. |
| 766 | * @param forceScroll Whether to recenter even if the time is already |
| 767 | * visible. |
| 768 | * |
| 769 | * @throws IllegalArgumentException of the provided date is before the |
| 770 | * range start of after the range end. |
| 771 | */ |
| 772 | private void goTo(Calendar date, boolean animate, boolean setSelected, |
| 773 | boolean forceScroll) { |
| 774 | if (date.before(mMinDate) || date.after(mMaxDate)) { |
| 775 | throw new IllegalArgumentException("Time not between " + mMinDate.getTime() |
| 776 | + " and " + mMaxDate.getTime()); |
| 777 | } |
| 778 | // Find the first and last entirely visible weeks |
| 779 | int firstFullyVisiblePosition = mListView.getFirstVisiblePosition(); |
| 780 | View firstChild = mListView.getChildAt(0); |
| 781 | if (firstChild != null && firstChild.getTop() < 0) { |
| 782 | firstFullyVisiblePosition++; |
| 783 | } |
| 784 | int lastFullyVisiblePosition = firstFullyVisiblePosition + mShownWeekCount - 1; |
| 785 | if (firstChild != null && firstChild.getTop() > mBottomBuffer) { |
| 786 | lastFullyVisiblePosition--; |
| 787 | } |
| 788 | if (setSelected) { |
| 789 | mAdapter.setSelectedDay(date); |
| 790 | } |
| 791 | // Get the week we're going to |
| 792 | int position = getWeeksSinceMinDate(date); |
| 793 | |
| 794 | // Check if the selected day is now outside of our visible range |
| 795 | // and if so scroll to the month that contains it |
| 796 | if (position < firstFullyVisiblePosition || position > lastFullyVisiblePosition |
| 797 | || forceScroll) { |
| 798 | mFirstDayOfMonth.setTimeInMillis(date.getTimeInMillis()); |
| 799 | mFirstDayOfMonth.set(Calendar.DAY_OF_MONTH, 1); |
| 800 | |
| 801 | setMonthDisplayed(mFirstDayOfMonth); |
| 802 | |
| 803 | // the earliest time we can scroll to is the min date |
| 804 | if (mFirstDayOfMonth.before(mMinDate)) { |
| 805 | position = 0; |
| 806 | } else { |
| 807 | position = getWeeksSinceMinDate(mFirstDayOfMonth); |
| 808 | } |
| 809 | |
| 810 | mPreviousScrollState = AbsListView.OnScrollListener.SCROLL_STATE_FLING; |
| 811 | if (animate) { |
| 812 | mListView.smoothScrollToPositionFromTop(position, mListScrollTopOffset, |
| 813 | GOTO_SCROLL_DURATION); |
| 814 | } else { |
| 815 | mListView.setSelectionFromTop(position, mListScrollTopOffset); |
| 816 | // Perform any after scroll operations that are needed |
| 817 | onScrollStateChanged(mListView, AbsListView.OnScrollListener.SCROLL_STATE_IDLE); |
| 818 | } |
| 819 | } else if (setSelected) { |
| 820 | // Otherwise just set the selection |
| 821 | setMonthDisplayed(date); |
| 822 | } |
| 823 | } |
| 824 | |
| 825 | /** |
| 826 | * Called when a <code>view</code> transitions to a new <code>scrollState |
| 827 | * </code>. |
| 828 | */ |
| 829 | private void onScrollStateChanged(AbsListView view, int scrollState) { |
| 830 | mScrollStateChangedRunnable.doScrollStateChange(view, scrollState); |
| 831 | } |
| 832 | |
| 833 | /** |
| 834 | * Updates the title and selected month if the <code>view</code> has moved to a new |
| 835 | * month. |
| 836 | */ |
| 837 | private void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, |
| 838 | int totalItemCount) { |
| 839 | WeekView child = (WeekView) view.getChildAt(0); |
| 840 | if (child == null) { |
| 841 | return; |
| 842 | } |
| 843 | |
| 844 | // Figure out where we are |
| 845 | long currScroll = |
| 846 | view.getFirstVisiblePosition() * child.getHeight() - child.getBottom(); |
| 847 | |
| 848 | // If we have moved since our last call update the direction |
| 849 | if (currScroll < mPreviousScrollPosition) { |
| 850 | mIsScrollingUp = true; |
| 851 | } else if (currScroll > mPreviousScrollPosition) { |
| 852 | mIsScrollingUp = false; |
| 853 | } else { |
| 854 | return; |
| 855 | } |
| 856 | |
| 857 | // Use some hysteresis for checking which month to highlight. This |
| 858 | // causes the month to transition when two full weeks of a month are |
| 859 | // visible when scrolling up, and when the first day in a month reaches |
| 860 | // the top of the screen when scrolling down. |
| 861 | int offset = child.getBottom() < mWeekMinVisibleHeight ? 1 : 0; |
| 862 | if (mIsScrollingUp) { |
| 863 | child = (WeekView) view.getChildAt(SCROLL_HYST_WEEKS + offset); |
| 864 | } else if (offset != 0) { |
| 865 | child = (WeekView) view.getChildAt(offset); |
| 866 | } |
| 867 | |
| 868 | if (child != null) { |
| 869 | // Find out which month we're moving into |
| 870 | int month; |
| 871 | if (mIsScrollingUp) { |
| 872 | month = child.getMonthOfFirstWeekDay(); |
| 873 | } else { |
| 874 | month = child.getMonthOfLastWeekDay(); |
| 875 | } |
| 876 | |
| 877 | // And how it relates to our current highlighted month |
| 878 | int monthDiff; |
| 879 | if (mCurrentMonthDisplayed == 11 && month == 0) { |
| 880 | monthDiff = 1; |
| 881 | } else if (mCurrentMonthDisplayed == 0 && month == 11) { |
| 882 | monthDiff = -1; |
| 883 | } else { |
| 884 | monthDiff = month - mCurrentMonthDisplayed; |
| 885 | } |
| 886 | |
| 887 | // Only switch months if we're scrolling away from the currently |
| 888 | // selected month |
| 889 | if ((!mIsScrollingUp && monthDiff > 0) || (mIsScrollingUp && monthDiff < 0)) { |
| 890 | Calendar firstDay = child.getFirstDay(); |
| 891 | if (mIsScrollingUp) { |
| 892 | firstDay.add(Calendar.DAY_OF_MONTH, -DAYS_PER_WEEK); |
| 893 | } else { |
| 894 | firstDay.add(Calendar.DAY_OF_MONTH, DAYS_PER_WEEK); |
| 895 | } |
| 896 | setMonthDisplayed(firstDay); |
| 897 | } |
| 898 | } |
| 899 | mPreviousScrollPosition = currScroll; |
| 900 | mPreviousScrollState = mCurrentScrollState; |
| 901 | } |
| 902 | |
| 903 | /** |
| 904 | * Sets the month displayed at the top of this view based on time. Override |
| 905 | * to add custom events when the title is changed. |
| 906 | * |
| 907 | * @param calendar A day in the new focus month. |
| 908 | */ |
| 909 | private void setMonthDisplayed(Calendar calendar) { |
| 910 | mCurrentMonthDisplayed = calendar.get(Calendar.MONTH); |
| 911 | mAdapter.setFocusMonth(mCurrentMonthDisplayed); |
| 912 | final int flags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_NO_MONTH_DAY |
| 913 | | DateUtils.FORMAT_SHOW_YEAR; |
| 914 | final long millis = calendar.getTimeInMillis(); |
| 915 | String newMonthName = DateUtils.formatDateRange(mContext, millis, millis, flags); |
| 916 | mMonthName.setText(newMonthName); |
| 917 | mMonthName.invalidate(); |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * @return Returns the number of weeks between the current <code>date</code> |
| 922 | * and the <code>mMinDate</code>. |
| 923 | */ |
| 924 | private int getWeeksSinceMinDate(Calendar date) { |
| 925 | if (date.before(mMinDate)) { |
| 926 | throw new IllegalArgumentException("fromDate: " + mMinDate.getTime() |
| 927 | + " does not precede toDate: " + date.getTime()); |
| 928 | } |
| 929 | long endTimeMillis = date.getTimeInMillis() |
| 930 | + date.getTimeZone().getOffset(date.getTimeInMillis()); |
| 931 | long startTimeMillis = mMinDate.getTimeInMillis() |
| 932 | + mMinDate.getTimeZone().getOffset(mMinDate.getTimeInMillis()); |
| 933 | long dayOffsetMillis = (mMinDate.get(Calendar.DAY_OF_WEEK) - mFirstDayOfWeek) |
| 934 | * MILLIS_IN_DAY; |
| 935 | return (int) ((endTimeMillis - startTimeMillis + dayOffsetMillis) / MILLIS_IN_WEEK); |
| 936 | } |
| 937 | |
| 938 | /** |
| 939 | * Command responsible for acting upon scroll state changes. |
| 940 | */ |
| 941 | private class ScrollStateRunnable implements Runnable { |
| 942 | private AbsListView mView; |
| 943 | |
| 944 | private int mNewState; |
| 945 | |
| 946 | /** |
| 947 | * Sets up the runnable with a short delay in case the scroll state |
| 948 | * immediately changes again. |
| 949 | * |
| 950 | * @param view The list view that changed state |
| 951 | * @param scrollState The new state it changed to |
| 952 | */ |
| 953 | public void doScrollStateChange(AbsListView view, int scrollState) { |
| 954 | mView = view; |
| 955 | mNewState = scrollState; |
| 956 | mDelegator.removeCallbacks(this); |
| 957 | mDelegator.postDelayed(this, SCROLL_CHANGE_DELAY); |
| 958 | } |
| 959 | |
| 960 | public void run() { |
| 961 | mCurrentScrollState = mNewState; |
| 962 | // Fix the position after a scroll or a fling ends |
| 963 | if (mNewState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE |
| 964 | && mPreviousScrollState != AbsListView.OnScrollListener.SCROLL_STATE_IDLE) { |
| 965 | View child = mView.getChildAt(0); |
| 966 | if (child == null) { |
| 967 | // The view is no longer visible, just return |
| 968 | return; |
| 969 | } |
| 970 | int dist = child.getBottom() - mListScrollTopOffset; |
| 971 | if (dist > mListScrollTopOffset) { |
| 972 | if (mIsScrollingUp) { |
| 973 | mView.smoothScrollBy(dist - child.getHeight(), |
| 974 | ADJUSTMENT_SCROLL_DURATION); |
| 975 | } else { |
| 976 | mView.smoothScrollBy(dist, ADJUSTMENT_SCROLL_DURATION); |
| 977 | } |
| 978 | } |
| 979 | } |
| 980 | mPreviousScrollState = mNewState; |
| 981 | } |
| 982 | } |
| 983 | |
| 984 | /** |
| 985 | * <p> |
| 986 | * This is a specialized adapter for creating a list of weeks with |
| 987 | * selectable days. It can be configured to display the week number, start |
| 988 | * the week on a given day, show a reduced number of days, or display an |
| 989 | * arbitrary number of weeks at a time. |
| 990 | * </p> |
| 991 | */ |
| 992 | private class WeeksAdapter extends BaseAdapter implements View.OnTouchListener { |
| 993 | |
| 994 | private int mSelectedWeek; |
| 995 | |
| 996 | private GestureDetector mGestureDetector; |
| 997 | |
| 998 | private int mFocusedMonth; |
| 999 | |
| 1000 | private final Calendar mSelectedDate = Calendar.getInstance(); |
| 1001 | |
| 1002 | private int mTotalWeekCount; |
| 1003 | |
| 1004 | public WeeksAdapter(Context context) { |
| 1005 | mContext = context; |
| 1006 | mGestureDetector = new GestureDetector(mContext, new WeeksAdapter.CalendarGestureListener()); |
| 1007 | init(); |
| 1008 | } |
| 1009 | |
| 1010 | /** |
| 1011 | * Set up the gesture detector and selected time |
| 1012 | */ |
| 1013 | private void init() { |
| 1014 | mSelectedWeek = getWeeksSinceMinDate(mSelectedDate); |
| 1015 | mTotalWeekCount = getWeeksSinceMinDate(mMaxDate); |
| 1016 | if (mMinDate.get(Calendar.DAY_OF_WEEK) != mFirstDayOfWeek |
| 1017 | || mMaxDate.get(Calendar.DAY_OF_WEEK) != mFirstDayOfWeek) { |
| 1018 | mTotalWeekCount++; |
| 1019 | } |
| 1020 | notifyDataSetChanged(); |
| 1021 | } |
| 1022 | |
| 1023 | /** |
| 1024 | * Updates the selected day and related parameters. |
| 1025 | * |
| 1026 | * @param selectedDay The time to highlight |
| 1027 | */ |
| 1028 | public void setSelectedDay(Calendar selectedDay) { |
| 1029 | if (selectedDay.get(Calendar.DAY_OF_YEAR) == mSelectedDate.get(Calendar.DAY_OF_YEAR) |
| 1030 | && selectedDay.get(Calendar.YEAR) == mSelectedDate.get(Calendar.YEAR)) { |
| 1031 | return; |
| 1032 | } |
| 1033 | mSelectedDate.setTimeInMillis(selectedDay.getTimeInMillis()); |
| 1034 | mSelectedWeek = getWeeksSinceMinDate(mSelectedDate); |
| 1035 | mFocusedMonth = mSelectedDate.get(Calendar.MONTH); |
| 1036 | notifyDataSetChanged(); |
| 1037 | } |
| 1038 | |
| 1039 | /** |
| 1040 | * @return The selected day of month. |
| 1041 | */ |
| 1042 | public Calendar getSelectedDay() { |
| 1043 | return mSelectedDate; |
| 1044 | } |
| 1045 | |
| 1046 | @Override |
| 1047 | public int getCount() { |
| 1048 | return mTotalWeekCount; |
| 1049 | } |
| 1050 | |
| 1051 | @Override |
| 1052 | public Object getItem(int position) { |
| 1053 | return null; |
| 1054 | } |
| 1055 | |
| 1056 | @Override |
| 1057 | public long getItemId(int position) { |
| 1058 | return position; |
| 1059 | } |
| 1060 | |
| 1061 | @Override |
| 1062 | public View getView(int position, View convertView, ViewGroup parent) { |
| 1063 | WeekView weekView = null; |
| 1064 | if (convertView != null) { |
| 1065 | weekView = (WeekView) convertView; |
| 1066 | } else { |
| 1067 | weekView = new WeekView(mContext); |
| 1068 | AbsListView.LayoutParams params = |
| 1069 | new AbsListView.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, |
| 1070 | FrameLayout.LayoutParams.WRAP_CONTENT); |
| 1071 | weekView.setLayoutParams(params); |
| 1072 | weekView.setClickable(true); |
| 1073 | weekView.setOnTouchListener(this); |
| 1074 | } |
| 1075 | |
| 1076 | int selectedWeekDay = (mSelectedWeek == position) ? mSelectedDate.get( |
| 1077 | Calendar.DAY_OF_WEEK) : -1; |
| 1078 | weekView.init(position, selectedWeekDay, mFocusedMonth); |
| 1079 | |
| 1080 | return weekView; |
| 1081 | } |
| 1082 | |
| 1083 | /** |
| 1084 | * Changes which month is in focus and updates the view. |
| 1085 | * |
| 1086 | * @param month The month to show as in focus [0-11] |
| 1087 | */ |
| 1088 | public void setFocusMonth(int month) { |
| 1089 | if (mFocusedMonth == month) { |
| 1090 | return; |
| 1091 | } |
| 1092 | mFocusedMonth = month; |
| 1093 | notifyDataSetChanged(); |
| 1094 | } |
| 1095 | |
| 1096 | @Override |
| 1097 | public boolean onTouch(View v, MotionEvent event) { |
| 1098 | if (mListView.isEnabled() && mGestureDetector.onTouchEvent(event)) { |
| 1099 | WeekView weekView = (WeekView) v; |
| 1100 | // if we cannot find a day for the given location we are done |
| 1101 | if (!weekView.getDayFromLocation(event.getX(), mTempDate)) { |
| 1102 | return true; |
| 1103 | } |
| 1104 | // it is possible that the touched day is outside the valid range |
| 1105 | // we draw whole weeks but range end can fall not on the week end |
| 1106 | if (mTempDate.before(mMinDate) || mTempDate.after(mMaxDate)) { |
| 1107 | return true; |
| 1108 | } |
| 1109 | onDateTapped(mTempDate); |
| 1110 | return true; |
| 1111 | } |
| 1112 | return false; |
| 1113 | } |
| 1114 | |
| 1115 | /** |
| 1116 | * Maintains the same hour/min/sec but moves the day to the tapped day. |
| 1117 | * |
| 1118 | * @param day The day that was tapped |
| 1119 | */ |
| 1120 | private void onDateTapped(Calendar day) { |
| 1121 | setSelectedDay(day); |
| 1122 | setMonthDisplayed(day); |
| 1123 | } |
| 1124 | |
| 1125 | /** |
| 1126 | * This is here so we can identify single tap events and set the |
| 1127 | * selected day correctly |
| 1128 | */ |
| 1129 | class CalendarGestureListener extends GestureDetector.SimpleOnGestureListener { |
| 1130 | @Override |
| 1131 | public boolean onSingleTapUp(MotionEvent e) { |
| 1132 | return true; |
| 1133 | } |
| 1134 | } |
| 1135 | } |
| 1136 | |
| 1137 | /** |
| 1138 | * <p> |
| 1139 | * This is a dynamic view for drawing a single week. It can be configured to |
| 1140 | * display the week number, start the week on a given day, or show a reduced |
| 1141 | * number of days. It is intended for use as a single view within a |
| 1142 | * ListView. See {@link WeeksAdapter} for usage. |
| 1143 | * </p> |
| 1144 | */ |
| 1145 | private class WeekView extends View { |
| 1146 | |
| 1147 | private final Rect mTempRect = new Rect(); |
| 1148 | |
| 1149 | private final Paint mDrawPaint = new Paint(); |
| 1150 | |
| 1151 | private final Paint mMonthNumDrawPaint = new Paint(); |
| 1152 | |
| 1153 | // Cache the number strings so we don't have to recompute them each time |
| 1154 | private String[] mDayNumbers; |
| 1155 | |
| 1156 | // Quick lookup for checking which days are in the focus month |
| 1157 | private boolean[] mFocusDay; |
| 1158 | |
| 1159 | // Whether this view has a focused day. |
| 1160 | private boolean mHasFocusedDay; |
| 1161 | |
| 1162 | // Whether this view has only focused days. |
| 1163 | private boolean mHasUnfocusedDay; |
| 1164 | |
| 1165 | // The first day displayed by this item |
| 1166 | private Calendar mFirstDay; |
| 1167 | |
| 1168 | // The month of the first day in this week |
| 1169 | private int mMonthOfFirstWeekDay = -1; |
| 1170 | |
| 1171 | // The month of the last day in this week |
| 1172 | private int mLastWeekDayMonth = -1; |
| 1173 | |
| 1174 | // The position of this week, equivalent to weeks since the week of Jan |
| 1175 | // 1st, 1900 |
| 1176 | private int mWeek = -1; |
| 1177 | |
| 1178 | // Quick reference to the width of this view, matches parent |
| 1179 | private int mWidth; |
| 1180 | |
| 1181 | // The height this view should draw at in pixels, set by height param |
| 1182 | private int mHeight; |
| 1183 | |
| 1184 | // If this view contains the selected day |
| 1185 | private boolean mHasSelectedDay = false; |
| 1186 | |
| 1187 | // Which day is selected [0-6] or -1 if no day is selected |
| 1188 | private int mSelectedDay = -1; |
| 1189 | |
| 1190 | // The number of days + a spot for week number if it is displayed |
| 1191 | private int mNumCells; |
| 1192 | |
| 1193 | // The left edge of the selected day |
| 1194 | private int mSelectedLeft = -1; |
| 1195 | |
| 1196 | // The right edge of the selected day |
| 1197 | private int mSelectedRight = -1; |
| 1198 | |
| 1199 | public WeekView(Context context) { |
| 1200 | super(context); |
| 1201 | |
| 1202 | // Sets up any standard paints that will be used |
| 1203 | initilaizePaints(); |
| 1204 | } |
| 1205 | |
| 1206 | /** |
| 1207 | * Initializes this week view. |
| 1208 | * |
| 1209 | * @param weekNumber The number of the week this view represents. The |
| 1210 | * week number is a zero based index of the weeks since |
| 1211 | * {@link android.widget.CalendarView#getMinDate()}. |
| 1212 | * @param selectedWeekDay The selected day of the week from 0 to 6, -1 if no |
| 1213 | * selected day. |
| 1214 | * @param focusedMonth The month that is currently in focus i.e. |
| 1215 | * highlighted. |
| 1216 | */ |
| 1217 | public void init(int weekNumber, int selectedWeekDay, int focusedMonth) { |
| 1218 | mSelectedDay = selectedWeekDay; |
| 1219 | mHasSelectedDay = mSelectedDay != -1; |
| 1220 | mNumCells = mShowWeekNumber ? mDaysPerWeek + 1 : mDaysPerWeek; |
| 1221 | mWeek = weekNumber; |
| 1222 | mTempDate.setTimeInMillis(mMinDate.getTimeInMillis()); |
| 1223 | |
| 1224 | mTempDate.add(Calendar.WEEK_OF_YEAR, mWeek); |
| 1225 | mTempDate.setFirstDayOfWeek(mFirstDayOfWeek); |
| 1226 | |
| 1227 | // Allocate space for caching the day numbers and focus values |
| 1228 | mDayNumbers = new String[mNumCells]; |
| 1229 | mFocusDay = new boolean[mNumCells]; |
| 1230 | |
| 1231 | // If we're showing the week number calculate it based on Monday |
| 1232 | int i = 0; |
| 1233 | if (mShowWeekNumber) { |
| 1234 | mDayNumbers[0] = String.format(Locale.getDefault(), "%d", |
| 1235 | mTempDate.get(Calendar.WEEK_OF_YEAR)); |
| 1236 | i++; |
| 1237 | } |
| 1238 | |
| 1239 | // Now adjust our starting day based on the start day of the week |
| 1240 | int diff = mFirstDayOfWeek - mTempDate.get(Calendar.DAY_OF_WEEK); |
| 1241 | mTempDate.add(Calendar.DAY_OF_MONTH, diff); |
| 1242 | |
| 1243 | mFirstDay = (Calendar) mTempDate.clone(); |
| 1244 | mMonthOfFirstWeekDay = mTempDate.get(Calendar.MONTH); |
| 1245 | |
| 1246 | mHasUnfocusedDay = true; |
| 1247 | for (; i < mNumCells; i++) { |
| 1248 | final boolean isFocusedDay = (mTempDate.get(Calendar.MONTH) == focusedMonth); |
| 1249 | mFocusDay[i] = isFocusedDay; |
| 1250 | mHasFocusedDay |= isFocusedDay; |
| 1251 | mHasUnfocusedDay &= !isFocusedDay; |
| 1252 | // do not draw dates outside the valid range to avoid user confusion |
| 1253 | if (mTempDate.before(mMinDate) || mTempDate.after(mMaxDate)) { |
| 1254 | mDayNumbers[i] = ""; |
| 1255 | } else { |
| 1256 | mDayNumbers[i] = String.format(Locale.getDefault(), "%d", |
| 1257 | mTempDate.get(Calendar.DAY_OF_MONTH)); |
| 1258 | } |
| 1259 | mTempDate.add(Calendar.DAY_OF_MONTH, 1); |
| 1260 | } |
| 1261 | // We do one extra add at the end of the loop, if that pushed us to |
| 1262 | // new month undo it |
| 1263 | if (mTempDate.get(Calendar.DAY_OF_MONTH) == 1) { |
| 1264 | mTempDate.add(Calendar.DAY_OF_MONTH, -1); |
| 1265 | } |
| 1266 | mLastWeekDayMonth = mTempDate.get(Calendar.MONTH); |
| 1267 | |
| 1268 | updateSelectionPositions(); |
| 1269 | } |
| 1270 | |
| 1271 | /** |
| 1272 | * Initialize the paint instances. |
| 1273 | */ |
| 1274 | private void initilaizePaints() { |
| 1275 | mDrawPaint.setFakeBoldText(false); |
| 1276 | mDrawPaint.setAntiAlias(true); |
| 1277 | mDrawPaint.setStyle(Paint.Style.FILL); |
| 1278 | |
| 1279 | mMonthNumDrawPaint.setFakeBoldText(true); |
| 1280 | mMonthNumDrawPaint.setAntiAlias(true); |
| 1281 | mMonthNumDrawPaint.setStyle(Paint.Style.FILL); |
| 1282 | mMonthNumDrawPaint.setTextAlign(Paint.Align.CENTER); |
| 1283 | mMonthNumDrawPaint.setTextSize(mDateTextSize); |
| 1284 | } |
| 1285 | |
| 1286 | /** |
| 1287 | * Returns the month of the first day in this week. |
| 1288 | * |
| 1289 | * @return The month the first day of this view is in. |
| 1290 | */ |
| 1291 | public int getMonthOfFirstWeekDay() { |
| 1292 | return mMonthOfFirstWeekDay; |
| 1293 | } |
| 1294 | |
| 1295 | /** |
| 1296 | * Returns the month of the last day in this week |
| 1297 | * |
| 1298 | * @return The month the last day of this view is in |
| 1299 | */ |
| 1300 | public int getMonthOfLastWeekDay() { |
| 1301 | return mLastWeekDayMonth; |
| 1302 | } |
| 1303 | |
| 1304 | /** |
| 1305 | * Returns the first day in this view. |
| 1306 | * |
| 1307 | * @return The first day in the view. |
| 1308 | */ |
| 1309 | public Calendar getFirstDay() { |
| 1310 | return mFirstDay; |
| 1311 | } |
| 1312 | |
| 1313 | /** |
| 1314 | * Calculates the day that the given x position is in, accounting for |
| 1315 | * week number. |
| 1316 | * |
| 1317 | * @param x The x position of the touch event. |
| 1318 | * @return True if a day was found for the given location. |
| 1319 | */ |
| 1320 | public boolean getDayFromLocation(float x, Calendar outCalendar) { |
| 1321 | final boolean isLayoutRtl = isLayoutRtl(); |
| 1322 | |
| 1323 | int start; |
| 1324 | int end; |
| 1325 | |
| 1326 | if (isLayoutRtl) { |
| 1327 | start = 0; |
| 1328 | end = mShowWeekNumber ? mWidth - mWidth / mNumCells : mWidth; |
| 1329 | } else { |
| 1330 | start = mShowWeekNumber ? mWidth / mNumCells : 0; |
| 1331 | end = mWidth; |
| 1332 | } |
| 1333 | |
| 1334 | if (x < start || x > end) { |
| 1335 | outCalendar.clear(); |
| 1336 | return false; |
| 1337 | } |
| 1338 | |
| 1339 | // Selection is (x - start) / (pixels/day) which is (x - start) * day / pixels |
| 1340 | int dayPosition = (int) ((x - start) * mDaysPerWeek / (end - start)); |
| 1341 | |
| 1342 | if (isLayoutRtl) { |
| 1343 | dayPosition = mDaysPerWeek - 1 - dayPosition; |
| 1344 | } |
| 1345 | |
| 1346 | outCalendar.setTimeInMillis(mFirstDay.getTimeInMillis()); |
| 1347 | outCalendar.add(Calendar.DAY_OF_MONTH, dayPosition); |
| 1348 | |
| 1349 | return true; |
| 1350 | } |
| 1351 | |
| 1352 | @Override |
| 1353 | protected void onDraw(Canvas canvas) { |
| 1354 | drawBackground(canvas); |
| 1355 | drawWeekNumbersAndDates(canvas); |
| 1356 | drawWeekSeparators(canvas); |
| 1357 | drawSelectedDateVerticalBars(canvas); |
| 1358 | } |
| 1359 | |
| 1360 | /** |
| 1361 | * This draws the selection highlight if a day is selected in this week. |
| 1362 | * |
| 1363 | * @param canvas The canvas to draw on |
| 1364 | */ |
| 1365 | private void drawBackground(Canvas canvas) { |
| 1366 | if (!mHasSelectedDay) { |
| 1367 | return; |
| 1368 | } |
| 1369 | mDrawPaint.setColor(mSelectedWeekBackgroundColor); |
| 1370 | |
| 1371 | mTempRect.top = mWeekSeperatorLineWidth; |
| 1372 | mTempRect.bottom = mHeight; |
| 1373 | |
| 1374 | final boolean isLayoutRtl = isLayoutRtl(); |
| 1375 | |
| 1376 | if (isLayoutRtl) { |
| 1377 | mTempRect.left = 0; |
| 1378 | mTempRect.right = mSelectedLeft - 2; |
| 1379 | } else { |
| 1380 | mTempRect.left = mShowWeekNumber ? mWidth / mNumCells : 0; |
| 1381 | mTempRect.right = mSelectedLeft - 2; |
| 1382 | } |
| 1383 | canvas.drawRect(mTempRect, mDrawPaint); |
| 1384 | |
| 1385 | if (isLayoutRtl) { |
| 1386 | mTempRect.left = mSelectedRight + 3; |
| 1387 | mTempRect.right = mShowWeekNumber ? mWidth - mWidth / mNumCells : mWidth; |
| 1388 | } else { |
| 1389 | mTempRect.left = mSelectedRight + 3; |
| 1390 | mTempRect.right = mWidth; |
| 1391 | } |
| 1392 | canvas.drawRect(mTempRect, mDrawPaint); |
| 1393 | } |
| 1394 | |
| 1395 | /** |
| 1396 | * Draws the week and month day numbers for this week. |
| 1397 | * |
| 1398 | * @param canvas The canvas to draw on |
| 1399 | */ |
| 1400 | private void drawWeekNumbersAndDates(Canvas canvas) { |
| 1401 | final float textHeight = mDrawPaint.getTextSize(); |
| 1402 | final int y = (int) ((mHeight + textHeight) / 2) - mWeekSeperatorLineWidth; |
| 1403 | final int nDays = mNumCells; |
| 1404 | final int divisor = 2 * nDays; |
| 1405 | |
| 1406 | mDrawPaint.setTextAlign(Paint.Align.CENTER); |
| 1407 | mDrawPaint.setTextSize(mDateTextSize); |
| 1408 | |
| 1409 | int i = 0; |
| 1410 | |
| 1411 | if (isLayoutRtl()) { |
| 1412 | for (; i < nDays - 1; i++) { |
| 1413 | mMonthNumDrawPaint.setColor(mFocusDay[i] ? mFocusedMonthDateColor |
| 1414 | : mUnfocusedMonthDateColor); |
| 1415 | int x = (2 * i + 1) * mWidth / divisor; |
| 1416 | canvas.drawText(mDayNumbers[nDays - 1 - i], x, y, mMonthNumDrawPaint); |
| 1417 | } |
| 1418 | if (mShowWeekNumber) { |
| 1419 | mDrawPaint.setColor(mWeekNumberColor); |
| 1420 | int x = mWidth - mWidth / divisor; |
| 1421 | canvas.drawText(mDayNumbers[0], x, y, mDrawPaint); |
| 1422 | } |
| 1423 | } else { |
| 1424 | if (mShowWeekNumber) { |
| 1425 | mDrawPaint.setColor(mWeekNumberColor); |
| 1426 | int x = mWidth / divisor; |
| 1427 | canvas.drawText(mDayNumbers[0], x, y, mDrawPaint); |
| 1428 | i++; |
| 1429 | } |
| 1430 | for (; i < nDays; i++) { |
| 1431 | mMonthNumDrawPaint.setColor(mFocusDay[i] ? mFocusedMonthDateColor |
| 1432 | : mUnfocusedMonthDateColor); |
| 1433 | int x = (2 * i + 1) * mWidth / divisor; |
| 1434 | canvas.drawText(mDayNumbers[i], x, y, mMonthNumDrawPaint); |
| 1435 | } |
| 1436 | } |
| 1437 | } |
| 1438 | |
| 1439 | /** |
| 1440 | * Draws a horizontal line for separating the weeks. |
| 1441 | * |
| 1442 | * @param canvas The canvas to draw on. |
| 1443 | */ |
| 1444 | private void drawWeekSeparators(Canvas canvas) { |
| 1445 | // If it is the topmost fully visible child do not draw separator line |
| 1446 | int firstFullyVisiblePosition = mListView.getFirstVisiblePosition(); |
| 1447 | if (mListView.getChildAt(0).getTop() < 0) { |
| 1448 | firstFullyVisiblePosition++; |
| 1449 | } |
| 1450 | if (firstFullyVisiblePosition == mWeek) { |
| 1451 | return; |
| 1452 | } |
| 1453 | mDrawPaint.setColor(mWeekSeparatorLineColor); |
| 1454 | mDrawPaint.setStrokeWidth(mWeekSeperatorLineWidth); |
| 1455 | float startX; |
| 1456 | float stopX; |
| 1457 | if (isLayoutRtl()) { |
| 1458 | startX = 0; |
| 1459 | stopX = mShowWeekNumber ? mWidth - mWidth / mNumCells : mWidth; |
| 1460 | } else { |
| 1461 | startX = mShowWeekNumber ? mWidth / mNumCells : 0; |
| 1462 | stopX = mWidth; |
| 1463 | } |
| 1464 | canvas.drawLine(startX, 0, stopX, 0, mDrawPaint); |
| 1465 | } |
| 1466 | |
| 1467 | /** |
| 1468 | * Draws the selected date bars if this week has a selected day. |
| 1469 | * |
| 1470 | * @param canvas The canvas to draw on |
| 1471 | */ |
| 1472 | private void drawSelectedDateVerticalBars(Canvas canvas) { |
| 1473 | if (!mHasSelectedDay) { |
| 1474 | return; |
| 1475 | } |
| 1476 | mSelectedDateVerticalBar.setBounds( |
| 1477 | mSelectedLeft - mSelectedDateVerticalBarWidth / 2, |
| 1478 | mWeekSeperatorLineWidth, |
| 1479 | mSelectedLeft + mSelectedDateVerticalBarWidth / 2, |
| 1480 | mHeight); |
| 1481 | mSelectedDateVerticalBar.draw(canvas); |
| 1482 | mSelectedDateVerticalBar.setBounds( |
| 1483 | mSelectedRight - mSelectedDateVerticalBarWidth / 2, |
| 1484 | mWeekSeperatorLineWidth, |
| 1485 | mSelectedRight + mSelectedDateVerticalBarWidth / 2, |
| 1486 | mHeight); |
| 1487 | mSelectedDateVerticalBar.draw(canvas); |
| 1488 | } |
| 1489 | |
| 1490 | @Override |
| 1491 | protected void onSizeChanged(int w, int h, int oldw, int oldh) { |
| 1492 | mWidth = w; |
| 1493 | updateSelectionPositions(); |
| 1494 | } |
| 1495 | |
| 1496 | /** |
| 1497 | * This calculates the positions for the selected day lines. |
| 1498 | */ |
| 1499 | private void updateSelectionPositions() { |
| 1500 | if (mHasSelectedDay) { |
| 1501 | final boolean isLayoutRtl = isLayoutRtl(); |
| 1502 | int selectedPosition = mSelectedDay - mFirstDayOfWeek; |
| 1503 | if (selectedPosition < 0) { |
| 1504 | selectedPosition += 7; |
| 1505 | } |
| 1506 | if (mShowWeekNumber && !isLayoutRtl) { |
| 1507 | selectedPosition++; |
| 1508 | } |
| 1509 | if (isLayoutRtl) { |
| 1510 | mSelectedLeft = (mDaysPerWeek - 1 - selectedPosition) * mWidth / mNumCells; |
| 1511 | |
| 1512 | } else { |
| 1513 | mSelectedLeft = selectedPosition * mWidth / mNumCells; |
| 1514 | } |
| 1515 | mSelectedRight = mSelectedLeft + mWidth / mNumCells; |
| 1516 | } |
| 1517 | } |
| 1518 | |
| 1519 | @Override |
| 1520 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| 1521 | mHeight = (mListView.getHeight() - mListView.getPaddingTop() - mListView |
| 1522 | .getPaddingBottom()) / mShownWeekCount; |
| 1523 | setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), mHeight); |
| 1524 | } |
| 1525 | } |
| 1526 | |
| 1527 | } |