DynamicLayout.java revision d6e568c4f3b30431a0086e647f38d24ffd81457a
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) { 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super((ellipsize == null) 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ? display 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : (display instanceof Spanned) 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ? new SpannedEllipsizer(display) 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : new Ellipsizer(display), 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint, width, align, spacingmult, spacingadd); 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBase = base; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDisplay = display; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts = new PackedIntVector(COLUMNS_ELLIPSIZE); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = ellipsizedWidth; 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizeAt = ellipsize; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts = new PackedIntVector(COLUMNS_NORMAL); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = width; 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizeAt = ellipsize; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects = new PackedObjectVector<Directions>(1); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIncludePad = includepad; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is annoying, but we can't refer to the layout until 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * superclass construction is finished, and the superclass 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * constructor wants the reference to the display text. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will break if the superclass constructor ever actually 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cares about the content instead of just holding the reference. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Ellipsizer e = (Ellipsizer) getText(); 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mLayout = this; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mWidth = ellipsizedWidth; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mMethod = ellipsize; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsize = true; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Initial state is a single line with 0 characters (0 to 0), 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // with top at 0 and bottom at whatever is natural, and 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // undefined ellipsis. 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] start; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start = new int[COLUMNS_ELLIPSIZE]; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[ELLIPSIS_START] = ELLIPSIS_UNDEFINED; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start = new int[COLUMNS_NORMAL]; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] dirs = new Directions[] { DIRS_ALL_LEFT_TO_RIGHT }; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint.FontMetricsInt fm = paint.getFontMetricsInt(); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int asc = fm.ascent; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int desc = fm.descent; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[DIR] = DIR_LEFT_TO_RIGHT << DIR_SHIFT; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[TOP] = 0; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[DESCENT] = desc; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(0, start); 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start[TOP] = desc - asc; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(1, start); 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.insertAt(0, dirs); 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update from 0 characters to whatever the real text is 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(base, 0, 0, base.length()); 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (base instanceof Spannable) { 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mWatcher == null) 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWatcher = new ChangeWatcher(this); 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Strip out any watchers for other DynamicLayouts. 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spannable sp = (Spannable) base; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ChangeWatcher[] spans = sp.getSpans(0, sp.length(), ChangeWatcher.class); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < spans.length; i++) 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp.removeSpan(spans[i]); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp.setSpan(mWatcher, 0, base.length(), 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spannable.SPAN_INCLUSIVE_INCLUSIVE | 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (PRIORITY << Spannable.SPAN_PRIORITY_SHIFT)); 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void reflow(CharSequence s, int where, int before, int after) { 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (s != mBase) 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project CharSequence text = mDisplay; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len = text.length(); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek back to the start of the paragraph 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int find = TextUtils.lastIndexOf(text, '\n', where - 1); 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (find < 0) 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project find = 0; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project find = find + 1; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = where - find; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where -= diff; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek forward to the end of the paragraph 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int look = TextUtils.indexOf(text, '\n', where + after); 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (look < 0) 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project look = len; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project look++; // we want the index after the \n 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int change = look - (where + after); 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += change; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += change; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // seek further out to cover anything that is forced to wrap together 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text instanceof Spanned) { 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spanned sp = (Spanned) text; 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean again; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = false; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object[] force = sp.getSpans(where, where + after, 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WrapTogetherSpan.class); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < force.length; i++) { 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int st = sp.getSpanStart(force[i]); 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int en = sp.getSpanEnd(force[i]); 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (st < where) { 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = true; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = where - st; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where -= diff; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (en > where + after) { 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project again = true; 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int diff = en - (where + after); 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project before += diff; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project after += diff; 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } while (again); 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // find affected region of old layout 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int startline = getLineForOffset(where); 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int startv = getLineTop(startline); 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endline = getLineForOffset(where + before); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where + after == len) 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endline = getLineCount(); 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endv = getLineTop(endline); 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean islast = (endline == getLineCount()); 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // generate new layout for affected text 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project StaticLayout reflowed; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (sLock) { 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflowed = sStaticLayout; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sStaticLayout = null; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (reflowed == null) 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflowed = new StaticLayout(true); 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflowed.generate(text, where, where + after, 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getPaint(), getWidth(), getAlignment(), 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getSpacingMultiplier(), getSpacingAdd(), 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project false, true, mEllipsize, 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth, mEllipsizeAt); 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int n = reflowed.getLineCount(); 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the new layout has a blank line at the end, but it is not 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the very end of the buffer, then we already have a line that 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts there, so disregard the blank line. 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where + after != len && 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflowed.getLineStart(n - 1) == where + after) 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project n--; 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove affected lines from old layout 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.deleteAt(startline, endline - startline); 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.deleteAt(startline, endline - startline); 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjust offsets in layout for new height and offsets 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int ht = reflowed.getLineTop(n); 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int toppad = 0, botpad = 0; 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIncludePad && startline == 0) { 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project toppad = reflowed.getTopPadding(); 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTopPadding = toppad; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ht -= toppad; 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIncludePad && islast) { 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project botpad = reflowed.getBottomPadding(); 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBottomPadding = botpad; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ht += botpad; 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.adjustValuesBelow(startline, START, after - before); 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.adjustValuesBelow(startline, TOP, startv - endv + ht); 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // insert new layout 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] ints; 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsize) { 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints = new int[COLUMNS_ELLIPSIZE]; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_START] = ELLIPSIS_UNDEFINED; 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints = new int[COLUMNS_NORMAL]; 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] objects = new Directions[1]; 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < n; i++) { 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[START] = reflowed.getLineStart(i) | 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (reflowed.getParagraphDirection(i) << DIR_SHIFT) | 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (reflowed.getLineContainsTab(i) ? TAB_MASK : 0); 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int top = reflowed.getLineTop(i) + startv; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i > 0) 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top -= toppad; 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[TOP] = top; 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int desc = reflowed.getLineDescent(i); 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == n - 1) 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project desc += botpad; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[DESCENT] = desc; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[0] = reflowed.getLineDirections(i); 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsize) { 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_START] = reflowed.getEllipsisStart(i); 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ints[ELLIPSIS_COUNT] = reflowed.getEllipsisCount(i); 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInts.insertAt(startline + i, ints); 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mObjects.insertAt(startline + i, objects); 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (sLock) { 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sStaticLayout = reflowed; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 344d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineCount() { 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.size() - 1; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineTop(int line) { 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, TOP); 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 354d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineDescent(int line) { 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, DESCENT); 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineStart(int line) { 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, START) & START_MASK; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 364d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getLineContainsTab(int line) { 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mInts.getValue(line, TAB) & TAB_MASK) != 0; 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getParagraphDirection(int line) { 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, DIR) >> DIR_SHIFT; 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 374d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Directions getLineDirections(int line) { 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mObjects.getValue(line, 0); 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTopPadding() { 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTopPadding; 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 384d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBottomPadding() { 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBottomPadding; 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsizedWidth() { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mEllipsizedWidth; 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static class ChangeWatcher 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project implements TextWatcher, SpanWatcher 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public ChangeWatcher(DynamicLayout layout) { 398d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne mLayout = new WeakReference<DynamicLayout>(layout); 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void reflow(CharSequence s, int where, int before, int after) { 402d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne DynamicLayout ml = mLayout.get(); 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ml != null) 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ml.reflow(s, where, before, after); 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else if (s instanceof Spannable) 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((Spannable) s).removeSpan(this); 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int where, int before, int after) { 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int where, int before, int after) { 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, where, before, after); 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onSpanAdded(Spannable s, Object o, int start, int end) { 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onSpanRemoved(Spannable s, Object o, int start, int end) { 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onSpanChanged(Spannable s, Object o, int start, int end, 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nstart, int nend) { 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o instanceof UpdateLayout) { 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, start, end - start, end - start); 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reflow(s, nstart, nend - nstart, nend - nstart); 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 440d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne private WeakReference<DynamicLayout> mLayout; 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 443d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisStart(int line) { 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsizeAt == null) { 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, ELLIPSIS_START); 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 452d6e568c4f3b30431a0086e647f38d24ffd81457aGilles Debunne @Override 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisCount(int line) { 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEllipsizeAt == null) { 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mInts.getValue(line, ELLIPSIS_COUNT); 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CharSequence mBase; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CharSequence mDisplay; 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ChangeWatcher mWatcher; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIncludePad; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mEllipsize; 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mEllipsizedWidth; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private TextUtils.TruncateAt mEllipsizeAt; 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PackedIntVector mInts; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PackedObjectVector<Directions> mObjects; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTopPadding, mBottomPadding; 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static StaticLayout sStaticLayout = new StaticLayout(true); 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static Object sLock = new Object(); 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START = 0; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR = START; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB = START; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOP = 1; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DESCENT = 2; 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_NORMAL = 3; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_START = 3; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_COUNT = 4; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_ELLIPSIZE = 5; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START_MASK = 0x1FFFFFFF; 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR_SHIFT = 30; 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB_MASK = 0x20000000; 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_UNDEFINED = 0x80000000; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 494