DynamicLayout.java revision 33b7de85b6918b7714641f12f1ba2ff03a344740
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.text; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Paint; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.style.UpdateLayout; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.style.WrapTogetherSpan; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunneimport com.android.internal.util.ArrayUtils; 2433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.WeakReference; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * DynamicLayout is a text layout that updates itself as the text is edited. 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This is used by widgets to control text layout. You should not need 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to use this class directly unless you are implementing your own widget 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or custom display object, or need to call 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.graphics.Canvas#drawText(java.lang.CharSequence, int, int, float, float, android.graphics.Paint) 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Canvas.drawText()} directly.</p> 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunnepublic class DynamicLayout extends Layout 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int PRIORITY = 128; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a layout for the specified text that will be updated as 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text is changed. 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DynamicLayout(CharSequence base, 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, Alignment align, 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(base, base, paint, width, align, spacingmult, spacingadd, 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project includepad); 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a layout for the transformed text (password transformation 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being the primary example of a transformation) 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that will be updated as the base text is changed. 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DynamicLayout(CharSequence base, CharSequence display, 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, Alignment align, 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(base, display, paint, width, align, spacingmult, spacingadd, 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project includepad, null, 0); 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a layout for the transformed text (password transformation 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being the primary example of a transformation) 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that will be updated as the base text is changed. 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If ellipsize is non-null, the Layout will ellipsize the text 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * down to ellipsizedWidth. 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DynamicLayout(CharSequence base, CharSequence display, 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, Alignment align, 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad, 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextUtils.TruncateAt ellipsize, int ellipsizedWidth) { 79cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt this(base, display, paint, width, align, TextDirectionHeuristics.FIRSTSTRONG_LTR, 80ad0b051b133baf92f199c96a8ac1e81b3393190cFabrice Di Meglio spacingmult, spacingadd, includepad, ellipsize, ellipsizedWidth); 81cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt } 82cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 83cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt /** 84cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * Make a layout for the transformed text (password transformation 85cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * being the primary example of a transformation) 86cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * that will be updated as the base text is changed. 87cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * If ellipsize is non-null, the Layout will ellipsize the text 88cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * down to ellipsizedWidth. 89cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * * 90cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * *@hide 91cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt */ 92cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt public DynamicLayout(CharSequence base, CharSequence display, 93cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextPaint paint, 94cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt int width, Alignment align, TextDirectionHeuristic textDir, 95cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt float spacingmult, float spacingadd, 96cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt boolean includepad, 97ad0b051b133baf92f199c96a8ac1e81b3393190cFabrice Di Meglio TextUtils.TruncateAt ellipsize, int ellipsizedWidth) { 98cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt super((ellipsize == null) 99cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt ? display 100cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt : (display instanceof Spanned) 101cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt ? new SpannedEllipsizer(display) 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : new Ellipsizer(display), 103cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt paint, width, align, textDir, spacingmult, spacingadd); 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBase = base; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDisplay = display; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts = new PackedIntVector(COLUMNS_ELLIPSIZE); 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = ellipsizedWidth; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizeAt = ellipsize; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts = new PackedIntVector(COLUMNS_NORMAL); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = width; 1150a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne mEllipsizeAt = null; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects = new PackedObjectVector<Directions>(1); 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds = new int[] { 0 }; 12133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockIndices = new int[] { INVALID_BLOCK_INDEX }; 12233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mNumberOfBlocks = 1; 12333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIncludePad = includepad; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is annoying, but we can't refer to the layout until 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * superclass construction is finished, and the superclass 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * constructor wants the reference to the display text. 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will break if the superclass constructor ever actually 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cares about the content instead of just holding the reference. 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Ellipsizer e = (Ellipsizer) getText(); 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mLayout = this; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mWidth = ellipsizedWidth; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mMethod = ellipsize; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsize = true; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Initial state is a single line with 0 characters (0 to 0), 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // with top at 0 and bottom at whatever is natural, and 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // undefined ellipsis. 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] start; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start = new int[COLUMNS_ELLIPSIZE]; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[ELLIPSIS_START] = ELLIPSIS_UNDEFINED; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start = new int[COLUMNS_NORMAL]; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] dirs = new Directions[] { DIRS_ALL_LEFT_TO_RIGHT }; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint.FontMetricsInt fm = paint.getFontMetricsInt(); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int asc = fm.ascent; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int desc = fm.descent; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[DIR] = DIR_LEFT_TO_RIGHT << DIR_SHIFT; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[TOP] = 0; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[DESCENT] = desc; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(0, start); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[TOP] = desc - asc; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(1, start); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.insertAt(0, dirs); 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update from 0 characters to whatever the real text is 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(base, 0, 0, base.length()); 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (base instanceof Spannable) { 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mWatcher == null) 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWatcher = new ChangeWatcher(this); 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Strip out any watchers for other DynamicLayouts. 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spannable sp = (Spannable) base; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ChangeWatcher[] spans = sp.getSpans(0, sp.length(), ChangeWatcher.class); 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < spans.length; i++) 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp.removeSpan(spans[i]); 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp.setSpan(mWatcher, 0, base.length(), 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spannable.SPAN_INCLUSIVE_INCLUSIVE | 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (PRIORITY << Spannable.SPAN_PRIORITY_SHIFT)); 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void reflow(CharSequence s, int where, int before, int after) { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (s != mBase) 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CharSequence text = mDisplay; 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len = text.length(); 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek back to the start of the paragraph 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int find = TextUtils.lastIndexOf(text, '\n', where - 1); 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (find < 0) 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project find = 0; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project find = find + 1; 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = where - find; 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where -= diff; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek forward to the end of the paragraph 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int look = TextUtils.indexOf(text, '\n', where + after); 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (look < 0) 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project look = len; 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project look++; // we want the index after the \n 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int change = look - (where + after); 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += change; 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += change; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek further out to cover anything that is forced to wrap together 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text instanceof Spanned) { 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spanned sp = (Spanned) text; 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean again; 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = false; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object[] force = sp.getSpans(where, where + after, 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WrapTogetherSpan.class); 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < force.length; i++) { 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int st = sp.getSpanStart(force[i]); 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int en = sp.getSpanEnd(force[i]); 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (st < where) { 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = true; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = where - st; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where -= diff; 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (en > where + after) { 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = true; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = en - (where + after); 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } while (again); 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // find affected region of old layout 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int startline = getLineForOffset(where); 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int startv = getLineTop(startline); 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endline = getLineForOffset(where + before); 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where + after == len) 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endline = getLineCount(); 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endv = getLineTop(endline); 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean islast = (endline == getLineCount()); 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // generate new layout for affected text 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project StaticLayout reflowed; 276b724c346e19d63d7ff194b2b06c4a1e0f7bc07b7Amith Yamasani 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (sLock) { 278b724c346e19d63d7ff194b2b06c4a1e0f7bc07b7Amith Yamasani reflowed = sStaticLayout; 279b724c346e19d63d7ff194b2b06c4a1e0f7bc07b7Amith Yamasani sStaticLayout = null; 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 282e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy if (reflowed == null) { 28309175735c562652be1a1b0dc0f941d36ac4f076aFabrice Di Meglio reflowed = new StaticLayout(null); 284e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } else { 285e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy reflowed.prepare(); 286e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflowed.generate(text, where, where + after, 289d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne getPaint(), getWidth(), getTextDirectionHeuristic(), getSpacingMultiplier(), 290d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne getSpacingAdd(), false, 291d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne true, mEllipsizedWidth, mEllipsizeAt); 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int n = reflowed.getLineCount(); 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the new layout has a blank line at the end, but it is not 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the very end of the buffer, then we already have a line that 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts there, so disregard the blank line. 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where + after != len && 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflowed.getLineStart(n - 1) == where + after) 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project n--; 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove affected lines from old layout 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.deleteAt(startline, endline - startline); 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.deleteAt(startline, endline - startline); 30533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne updateBlocks(startline, endline - 1, n); 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjust offsets in layout for new height and offsets 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int ht = reflowed.getLineTop(n); 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int toppad = 0, botpad = 0; 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIncludePad && startline == 0) { 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project toppad = reflowed.getTopPadding(); 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTopPadding = toppad; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ht -= toppad; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIncludePad && islast) { 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project botpad = reflowed.getBottomPadding(); 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBottomPadding = botpad; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ht += botpad; 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.adjustValuesBelow(startline, START, after - before); 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.adjustValuesBelow(startline, TOP, startv - endv + ht); 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // insert new layout 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] ints; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsize) { 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints = new int[COLUMNS_ELLIPSIZE]; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_START] = ELLIPSIS_UNDEFINED; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints = new int[COLUMNS_NORMAL]; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] objects = new Directions[1]; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < n; i++) { 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[START] = reflowed.getLineStart(i) | 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (reflowed.getParagraphDirection(i) << DIR_SHIFT) | 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (reflowed.getLineContainsTab(i) ? TAB_MASK : 0); 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = reflowed.getLineTop(i) + startv; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i > 0) 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top -= toppad; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[TOP] = top; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int desc = reflowed.getLineDescent(i); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == n - 1) 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project desc += botpad; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[DESCENT] = desc; 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[0] = reflowed.getLineDirections(i); 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsize) { 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_START] = reflowed.getEllipsisStart(i); 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_COUNT] = reflowed.getEllipsisCount(i); 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(startline + i, ints); 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.insertAt(startline + i, objects); 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (sLock) { 366b724c346e19d63d7ff194b2b06c4a1e0f7bc07b7Amith Yamasani sStaticLayout = reflowed; 367e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy reflowed.finish(); 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne /** 37233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * This method is called every time the layout is reflowed after an edition. 37333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * It updates the internal block data structure. The text is split in blocks 37433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * of contiguous lines, with at least one block for the entire text. 37533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * When a range of lines is edited, new blocks (from 0 to 3 depending on the 37633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * overlap structure) will replace the set of overlapping blocks. 37733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * Blocks are listed in order and are represented by their ending line number. 37833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * An index is associated to each block (which will be used by display lists), 37933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * this class simply invalidates the index of blocks overlapping a modification. 38033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * 38133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * @param startLine the first line of the range of modified lines 38233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * @param endLine the last line of the range, possibly equal to startLine, lower 38333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * than getLineCount() 38433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * @param newLineCount the number of lines that will replace the range, possibly 0 38533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne */ 38633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne private void updateBlocks(int startLine, int endLine, int newLineCount) { 38733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne int firstBlock = -1; 38833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne int lastBlock = -1; 38933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne for (int i = 0; i < mNumberOfBlocks; i++) { 39033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (mBlockEnds[i] >= startLine) { 39133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne firstBlock = i; 39233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne break; 39333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 39433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 39533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne for (int i = firstBlock; i < mNumberOfBlocks; i++) { 39633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (mBlockEnds[i] >= endLine) { 39733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne lastBlock = i; 39833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne break; 39933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 40033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 40133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne final int lastBlockEndLine = mBlockEnds[lastBlock]; 40233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 40333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne boolean createBlockBefore = startLine > (firstBlock == 0 ? 0 : 40433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds[firstBlock - 1] + 1); 40533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne boolean createBlock = newLineCount > 0; 40633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne boolean createBlockAfter = endLine < mBlockEnds[lastBlock]; 40733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 40833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne int numAddedBlocks = 0; 40933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (createBlockBefore) numAddedBlocks++; 41033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (createBlock) numAddedBlocks++; 41133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (createBlockAfter) numAddedBlocks++; 41233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 41333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne final int numRemovedBlocks = lastBlock - firstBlock + 1; 41433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne final int newNumberOfBlocks = mNumberOfBlocks + numAddedBlocks - numRemovedBlocks; 41533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 41633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (newNumberOfBlocks == 0) { 41733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne // Even when text is empty, there is actually one line and hence one block 41833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds[0] = 0; 41933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockIndices[0] = INVALID_BLOCK_INDEX; 42033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mNumberOfBlocks = 1; 42133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne return; 42233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 42333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 42433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (newNumberOfBlocks > mBlockEnds.length) { 42533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne final int newSize = ArrayUtils.idealIntArraySize(newNumberOfBlocks); 42633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne int[] blockEnds = new int[newSize]; 42733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne int[] blockIndices = new int[newSize]; 42833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne System.arraycopy(mBlockEnds, 0, blockEnds, 0, firstBlock); 42933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne System.arraycopy(mBlockIndices, 0, blockIndices, 0, firstBlock); 43033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne System.arraycopy(mBlockEnds, lastBlock + 1, 43133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne blockEnds, firstBlock + numAddedBlocks, mNumberOfBlocks - lastBlock - 1); 43233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne System.arraycopy(mBlockIndices, lastBlock + 1, 43333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne blockIndices, firstBlock + numAddedBlocks, mNumberOfBlocks - lastBlock - 1); 43433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds = blockEnds; 43533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockIndices = blockIndices; 43633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } else { 43733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne System.arraycopy(mBlockEnds, lastBlock + 1, 43833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds, firstBlock + numAddedBlocks, mNumberOfBlocks - lastBlock - 1); 43933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne System.arraycopy(mBlockIndices, lastBlock + 1, 44033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockIndices, firstBlock + numAddedBlocks, mNumberOfBlocks - lastBlock - 1); 44133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 44233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 44333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mNumberOfBlocks = newNumberOfBlocks; 44433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne final int deltaLines = newLineCount - (endLine - startLine + 1); 44533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne for (int i = firstBlock + numAddedBlocks; i < mNumberOfBlocks; i++) { 44633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds[i] += deltaLines; 44733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 44833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 44933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne int blockIndex = firstBlock; 45033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (createBlockBefore) { 45133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds[blockIndex] = startLine - 1; 45233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockIndices[blockIndex] = INVALID_BLOCK_INDEX; 45333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne blockIndex++; 45433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 45533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 45633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (createBlock) { 45733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds[blockIndex] = startLine + newLineCount - 1; 45833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockIndices[blockIndex] = INVALID_BLOCK_INDEX; 45933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne blockIndex++; 46033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 46133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 46233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne if (createBlockAfter) { 46333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockEnds[blockIndex] = lastBlockEndLine + deltaLines; 46433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne mBlockIndices[blockIndex] = INVALID_BLOCK_INDEX; 46533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 46633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 46733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 46833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne /** 46933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * @hide 47033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne */ 47133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne public int[] getBlockEnds() { 47233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne return mBlockEnds; 47333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 47433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 47533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne /** 47633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * @hide 47733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne */ 47833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne public int[] getBlockIndices() { 47933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne return mBlockIndices; 48033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 48133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 48233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne /** 48333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * @hide 48433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne */ 48533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne public int getNumberOfBlocks() { 48633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne return mNumberOfBlocks; 48733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne } 48833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 489d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineCount() { 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.size() - 1; 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 494d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineTop(int line) { 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, TOP); 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineDescent(int line) { 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, DESCENT); 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 504d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineStart(int line) { 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, START) & START_MASK; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getLineContainsTab(int line) { 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mInts.getValue(line, TAB) & TAB_MASK) != 0; 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 514d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getParagraphDirection(int line) { 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, DIR) >> DIR_SHIFT; 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 519d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Directions getLineDirections(int line) { 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mObjects.getValue(line, 0); 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 524d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTopPadding() { 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTopPadding; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 529d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBottomPadding() { 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBottomPadding; 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsizedWidth() { 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mEllipsizedWidth; 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5390a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne private static class ChangeWatcher implements TextWatcher, SpanWatcher { 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ChangeWatcher(DynamicLayout layout) { 541d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne mLayout = new WeakReference<DynamicLayout>(layout); 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void reflow(CharSequence s, int where, int before, int after) { 545d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne DynamicLayout ml = mLayout.get(); 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ml != null) 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ml.reflow(s, where, before, after); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else if (s instanceof Spannable) 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((Spannable) s).removeSpan(this); 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5530a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne public void beforeTextChanged(CharSequence s, int where, int before, int after) { 55433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne // Intentionally empty 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5570a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne public void onTextChanged(CharSequence s, int where, int before, int after) { 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, where, before, after); 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 56233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne // Intentionally empty 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onSpanAdded(Spannable s, Object o, int start, int end) { 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onSpanRemoved(Spannable s, Object o, int start, int end) { 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5750a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne public void onSpanChanged(Spannable s, Object o, int start, int end, int nstart, int nend) { 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) { 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, nstart, nend - nstart, nend - nstart); 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 582d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne private WeakReference<DynamicLayout> mLayout; 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 585d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisStart(int line) { 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsizeAt == null) { 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, ELLIPSIS_START); 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 594d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisCount(int line) { 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsizeAt == null) { 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, ELLIPSIS_COUNT); 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CharSequence mBase; 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CharSequence mDisplay; 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ChangeWatcher mWatcher; 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIncludePad; 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mEllipsize; 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mEllipsizedWidth; 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private TextUtils.TruncateAt mEllipsizeAt; 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PackedIntVector mInts; 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PackedObjectVector<Directions> mObjects; 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne /* 61533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * Value used in mBlockIndices when a block has been created or recycled and indicating that its 61633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * display list needs to be re-created. 61733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne * @hide 61833b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne */ 61933b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne public static final int INVALID_BLOCK_INDEX = -1; 62033b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne // Stores the line numbers of the last line of each block 62133b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne private int[] mBlockEnds; 62233b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne // The indices of this block's display list in TextView's internal display list array or 62333b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne // INVALID_BLOCK_INDEX if this block has been invalidated during an edition 62433b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne private int[] mBlockIndices; 62533b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne // Number of items actually currently being used in the above 2 arrays 62633b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne private int mNumberOfBlocks; 62733b7de85b6918b7714641f12f1ba2ff03a344740Gilles Debunne 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTopPadding, mBottomPadding; 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63009175735c562652be1a1b0dc0f941d36ac4f076aFabrice Di Meglio private static StaticLayout sStaticLayout = new StaticLayout(null); 6318059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 632e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy private static final Object[] sLock = new Object[0]; 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START = 0; 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR = START; 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB = START; 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOP = 1; 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DESCENT = 2; 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_NORMAL = 3; 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_START = 3; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_COUNT = 4; 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_ELLIPSIZE = 5; 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START_MASK = 0x1FFFFFFF; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR_SHIFT = 30; 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB_MASK = 0x20000000; 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_UNDEFINED = 0x80000000; 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 651