DynamicLayout.java revision d300e75eff0d5e54390400cbd3f80dc4cea8b617
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 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.WeakReference; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * DynamicLayout is a text layout that updates itself as the text is edited. 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This is used by widgets to control text layout. You should not need 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to use this class directly unless you are implementing your own widget 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or custom display object, or need to call 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.graphics.Canvas#drawText(java.lang.CharSequence, int, int, float, float, android.graphics.Paint) 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Canvas.drawText()} directly.</p> 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class DynamicLayout 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectextends Layout 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int PRIORITY = 128; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a layout for the specified text that will be updated as 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text is changed. 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DynamicLayout(CharSequence base, 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, Alignment align, 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(base, base, paint, width, align, spacingmult, spacingadd, 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project includepad); 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a layout for the transformed text (password transformation 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being the primary example of a transformation) 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that will be updated as the base text is changed. 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DynamicLayout(CharSequence base, CharSequence display, 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, Alignment align, 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(base, display, paint, width, align, spacingmult, spacingadd, 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project includepad, null, 0); 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a layout for the transformed text (password transformation 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being the primary example of a transformation) 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that will be updated as the base text is changed. 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If ellipsize is non-null, the Layout will ellipsize the text 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * down to ellipsizedWidth. 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DynamicLayout(CharSequence base, CharSequence display, 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, Alignment align, 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad, 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextUtils.TruncateAt ellipsize, int ellipsizedWidth) { 78cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt this(base, display, paint, width, align, TextDirectionHeuristics.FIRSTSTRONG_LTR, 79ad0b051b133baf92f199c96a8ac1e81b3393190cFabrice Di Meglio spacingmult, spacingadd, includepad, ellipsize, ellipsizedWidth); 80cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt } 81cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 82cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt /** 83cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * Make a layout for the transformed text (password transformation 84cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * being the primary example of a transformation) 85cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * that will be updated as the base text is changed. 86cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * If ellipsize is non-null, the Layout will ellipsize the text 87cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * down to ellipsizedWidth. 88cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * * 89cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * *@hide 90cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt */ 91cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt public DynamicLayout(CharSequence base, CharSequence display, 92cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextPaint paint, 93cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt int width, Alignment align, TextDirectionHeuristic textDir, 94cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt float spacingmult, float spacingadd, 95cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt boolean includepad, 96ad0b051b133baf92f199c96a8ac1e81b3393190cFabrice Di Meglio TextUtils.TruncateAt ellipsize, int ellipsizedWidth) { 97cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt super((ellipsize == null) 98cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt ? display 99cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt : (display instanceof Spanned) 100cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt ? new SpannedEllipsizer(display) 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : new Ellipsizer(display), 102cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt paint, width, align, textDir, spacingmult, spacingadd); 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBase = base; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDisplay = display; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts = new PackedIntVector(COLUMNS_ELLIPSIZE); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = ellipsizedWidth; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizeAt = ellipsize; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts = new PackedIntVector(COLUMNS_NORMAL); 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = width; 1140a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne mEllipsizeAt = null; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects = new PackedObjectVector<Directions>(1); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIncludePad = includepad; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is annoying, but we can't refer to the layout until 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * superclass construction is finished, and the superclass 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * constructor wants the reference to the display text. 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will break if the superclass constructor ever actually 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cares about the content instead of just holding the reference. 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Ellipsizer e = (Ellipsizer) getText(); 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mLayout = this; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mWidth = ellipsizedWidth; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mMethod = ellipsize; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsize = true; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Initial state is a single line with 0 characters (0 to 0), 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // with top at 0 and bottom at whatever is natural, and 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // undefined ellipsis. 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] start; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start = new int[COLUMNS_ELLIPSIZE]; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[ELLIPSIS_START] = ELLIPSIS_UNDEFINED; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start = new int[COLUMNS_NORMAL]; 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] dirs = new Directions[] { DIRS_ALL_LEFT_TO_RIGHT }; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint.FontMetricsInt fm = paint.getFontMetricsInt(); 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int asc = fm.ascent; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int desc = fm.descent; 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[DIR] = DIR_LEFT_TO_RIGHT << DIR_SHIFT; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[TOP] = 0; 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[DESCENT] = desc; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(0, start); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[TOP] = desc - asc; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(1, start); 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.insertAt(0, dirs); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update from 0 characters to whatever the real text is 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(base, 0, 0, base.length()); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (base instanceof Spannable) { 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mWatcher == null) 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWatcher = new ChangeWatcher(this); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Strip out any watchers for other DynamicLayouts. 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spannable sp = (Spannable) base; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ChangeWatcher[] spans = sp.getSpans(0, sp.length(), ChangeWatcher.class); 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < spans.length; i++) 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp.removeSpan(spans[i]); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp.setSpan(mWatcher, 0, base.length(), 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spannable.SPAN_INCLUSIVE_INCLUSIVE | 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (PRIORITY << Spannable.SPAN_PRIORITY_SHIFT)); 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void reflow(CharSequence s, int where, int before, int after) { 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (s != mBase) 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CharSequence text = mDisplay; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len = text.length(); 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek back to the start of the paragraph 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int find = TextUtils.lastIndexOf(text, '\n', where - 1); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (find < 0) 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project find = 0; 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project find = find + 1; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = where - find; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where -= diff; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek forward to the end of the paragraph 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int look = TextUtils.indexOf(text, '\n', where + after); 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (look < 0) 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project look = len; 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project look++; // we want the index after the \n 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int change = look - (where + after); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += change; 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += change; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek further out to cover anything that is forced to wrap together 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text instanceof Spanned) { 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spanned sp = (Spanned) text; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean again; 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = false; 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object[] force = sp.getSpans(where, where + after, 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WrapTogetherSpan.class); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < force.length; i++) { 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int st = sp.getSpanStart(force[i]); 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int en = sp.getSpanEnd(force[i]); 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (st < where) { 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = true; 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = where - st; 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where -= diff; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (en > where + after) { 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = true; 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = en - (where + after); 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } while (again); 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // find affected region of old layout 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int startline = getLineForOffset(where); 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int startv = getLineTop(startline); 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endline = getLineForOffset(where + before); 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where + after == len) 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endline = getLineCount(); 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endv = getLineTop(endline); 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean islast = (endline == getLineCount()); 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // generate new layout for affected text 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project StaticLayout reflowed; 271b724c346e19d63d7ff194b2b06c4a1e0f7bc07b7Amith Yamasani 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (sLock) { 273b724c346e19d63d7ff194b2b06c4a1e0f7bc07b7Amith Yamasani reflowed = sStaticLayout; 274b724c346e19d63d7ff194b2b06c4a1e0f7bc07b7Amith Yamasani sStaticLayout = null; 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 277e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy if (reflowed == null) { 27809175735c562652be1a1b0dc0f941d36ac4f076aFabrice Di Meglio reflowed = new StaticLayout(null); 279e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } else { 280e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy reflowed.prepare(); 281e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflowed.generate(text, where, where + after, 284d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne getPaint(), getWidth(), getTextDirectionHeuristic(), getSpacingMultiplier(), 285d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne getSpacingAdd(), false, 286d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne true, mEllipsizedWidth, mEllipsizeAt); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int n = reflowed.getLineCount(); 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the new layout has a blank line at the end, but it is not 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the very end of the buffer, then we already have a line that 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts there, so disregard the blank line. 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where + after != len && 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflowed.getLineStart(n - 1) == where + after) 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project n--; 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove affected lines from old layout 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.deleteAt(startline, endline - startline); 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.deleteAt(startline, endline - startline); 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjust offsets in layout for new height and offsets 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int ht = reflowed.getLineTop(n); 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int toppad = 0, botpad = 0; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIncludePad && startline == 0) { 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project toppad = reflowed.getTopPadding(); 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTopPadding = toppad; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ht -= toppad; 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIncludePad && islast) { 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project botpad = reflowed.getBottomPadding(); 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBottomPadding = botpad; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ht += botpad; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.adjustValuesBelow(startline, START, after - before); 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.adjustValuesBelow(startline, TOP, startv - endv + ht); 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // insert new layout 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] ints; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsize) { 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints = new int[COLUMNS_ELLIPSIZE]; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_START] = ELLIPSIS_UNDEFINED; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints = new int[COLUMNS_NORMAL]; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] objects = new Directions[1]; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < n; i++) { 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[START] = reflowed.getLineStart(i) | 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (reflowed.getParagraphDirection(i) << DIR_SHIFT) | 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (reflowed.getLineContainsTab(i) ? TAB_MASK : 0); 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = reflowed.getLineTop(i) + startv; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i > 0) 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top -= toppad; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[TOP] = top; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int desc = reflowed.getLineDescent(i); 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == n - 1) 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project desc += botpad; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[DESCENT] = desc; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[0] = reflowed.getLineDirections(i); 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsize) { 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_START] = reflowed.getEllipsisStart(i); 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_COUNT] = reflowed.getEllipsisCount(i); 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(startline + i, ints); 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.insertAt(startline + i, objects); 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (sLock) { 361b724c346e19d63d7ff194b2b06c4a1e0f7bc07b7Amith Yamasani sStaticLayout = reflowed; 362e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy reflowed.finish(); 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 366d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineCount() { 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.size() - 1; 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 371d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineTop(int line) { 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, TOP); 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 376d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineDescent(int line) { 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, DESCENT); 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 381d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineStart(int line) { 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, START) & START_MASK; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 386d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getLineContainsTab(int line) { 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mInts.getValue(line, TAB) & TAB_MASK) != 0; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 391d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getParagraphDirection(int line) { 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, DIR) >> DIR_SHIFT; 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 396d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Directions getLineDirections(int line) { 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mObjects.getValue(line, 0); 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 401d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTopPadding() { 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTopPadding; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 406d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBottomPadding() { 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBottomPadding; 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsizedWidth() { 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mEllipsizedWidth; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4160a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne private static class ChangeWatcher implements TextWatcher, SpanWatcher { 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ChangeWatcher(DynamicLayout layout) { 418d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne mLayout = new WeakReference<DynamicLayout>(layout); 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void reflow(CharSequence s, int where, int before, int after) { 422d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne DynamicLayout ml = mLayout.get(); 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ml != null) 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ml.reflow(s, where, before, after); 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else if (s instanceof Spannable) 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((Spannable) s).removeSpan(this); 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4300a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne public void beforeTextChanged(CharSequence s, int where, int before, int after) { 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4330a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne public void onTextChanged(CharSequence s, int where, int before, int after) { 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, where, before, after); 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onSpanAdded(Spannable s, Object o, int start, int end) { 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onSpanRemoved(Spannable s, Object o, int start, int end) { 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4500a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne public void onSpanChanged(Spannable s, Object o, int start, int end, int nstart, int nend) { 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) { 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, nstart, nend - nstart, nend - nstart); 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 457d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne private WeakReference<DynamicLayout> mLayout; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 460d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisStart(int line) { 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsizeAt == null) { 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, ELLIPSIS_START); 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisCount(int line) { 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsizeAt == null) { 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, ELLIPSIS_COUNT); 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CharSequence mBase; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CharSequence mDisplay; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ChangeWatcher mWatcher; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIncludePad; 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mEllipsize; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mEllipsizedWidth; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private TextUtils.TruncateAt mEllipsizeAt; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PackedIntVector mInts; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PackedObjectVector<Directions> mObjects; 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTopPadding, mBottomPadding; 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49109175735c562652be1a1b0dc0f941d36ac4f076aFabrice Di Meglio private static StaticLayout sStaticLayout = new StaticLayout(null); 4928059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 493e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy private static final Object[] sLock = new Object[0]; 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START = 0; 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR = START; 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB = START; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOP = 1; 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DESCENT = 2; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_NORMAL = 3; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_START = 3; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_COUNT = 4; 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_ELLIPSIZE = 5; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START_MASK = 0x1FFFFFFF; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR_SHIFT = 30; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB_MASK = 0x20000000; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_UNDEFINED = 0x80000000; 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 512