StaticLayout.java revision 23241887515ed77687c23e29a4a3ffff671666bd
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 194e0c5e55e171532760d5f51e0165563827129d4eDoug Feltimport com.android.internal.util.ArrayUtils; 204e0c5e55e171532760d5f51e0165563827129d4eDoug Felt 21105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Projectimport android.graphics.Bitmap; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Paint; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.style.LeadingMarginSpan; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.style.LineHeightSpan; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.style.MetricAffectingSpan; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * StaticLayout is a Layout for text that will not be edited after it 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is laid out. Use {@link DynamicLayout} for text that may change. 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This is used by widgets to control text layout. You should not need 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to use this class directly unless you are implementing your own widget 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or custom display object, or would be tempted to call 334e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * {@link android.graphics.Canvas#drawText(java.lang.CharSequence, int, int, 344e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * float, float, android.graphics.Paint) 354e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * Canvas.drawText()} directly.</p> 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectStaticLayout 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectextends Layout 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, TextPaint paint, 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Alignment align, float spacingmult, float spacingadd, 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(source, 0, source.length(), paint, width, align, 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, includepad); 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, int bufstart, int bufend, 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, int outerwidth, 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Alignment align, 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(source, bufstart, bufend, paint, outerwidth, align, 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, includepad, null, 0); 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, int bufstart, int bufend, 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, int outerwidth, 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Alignment align, 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad, 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextUtils.TruncateAt ellipsize, int ellipsizedWidth) { 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super((ellipsize == null) 654e0c5e55e171532760d5f51e0165563827129d4eDoug Felt ? source 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : (source instanceof Spanned) 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ? new SpannedEllipsizer(source) 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : new Ellipsizer(source), 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint, outerwidth, align, spacingmult, spacingadd); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is annoying, but we can't refer to the layout until 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * superclass construction is finished, and the superclass 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * constructor wants the reference to the display text. 754e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will break if the superclass constructor ever actually 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cares about the content instead of just holding the reference. 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Ellipsizer e = (Ellipsizer) getText(); 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mLayout = this; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mWidth = ellipsizedWidth; 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mMethod = ellipsize; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = ellipsizedWidth; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mColumns = COLUMNS_ELLIPSIZE; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mColumns = COLUMNS_NORMAL; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = outerwidth; 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines = new int[ArrayUtils.idealIntArraySize(2 * mColumns)]; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections = new Directions[ 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayUtils.idealIntArraySize(2 * mColumns)]; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 97e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt mMeasured = MeasuredText.obtain(); 98e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project generate(source, bufstart, bufend, paint, outerwidth, align, 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, includepad, includepad, 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsize != null, ellipsizedWidth, ellipsize); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 103e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt mMeasured = MeasuredText.recycle(mMeasured); 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFontMetricsInt = null; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* package */ StaticLayout(boolean ellipsize) { 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(null, null, 0, null, 0, 0); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mColumns = COLUMNS_ELLIPSIZE; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines = new int[ArrayUtils.idealIntArraySize(2 * mColumns)]; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections = new Directions[ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayUtils.idealIntArraySize(2 * mColumns)]; 114e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt mMeasured = MeasuredText.obtain(); 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* package */ void generate(CharSequence source, int bufstart, int bufend, 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, int outerwidth, 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Alignment align, 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad, boolean trackpad, 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean breakOnlyAtSpaces, 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ellipsizedWidth, TextUtils.TruncateAt where) { 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineCount = 0; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int v = 0; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean needMultiply = (spacingmult != 1 || spacingadd != 0); 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint.FontMetricsInt fm = mFontMetricsInt; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] choosehtv = null; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 132e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt MeasuredText measured = mMeasured; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spanned spanned = null; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (source instanceof Spanned) 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spanned = (Spanned) source; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int DEFAULT_DIR = DIR_LEFT_TO_RIGHT; // XXX 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 140e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int paraEnd; 141e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt for (int paraStart = bufstart; paraStart <= bufend; paraStart = paraEnd) { 142e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraEnd = TextUtils.indexOf(source, '\n', paraStart, bufend); 143e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (paraEnd < 0) 144e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraEnd = bufend; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else 146e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraEnd++; 147e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int paraLen = paraEnd - paraStart; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1497b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner int firstWidthLineCount = 1; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int firstwidth = outerwidth; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int restwidth = outerwidth; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LineHeightSpan[] chooseht = null; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (spanned != null) { 156e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt LeadingMarginSpan[] sp = spanned.getSpans(paraStart, paraEnd, 157e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt LeadingMarginSpan.class); 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < sp.length; i++) { 1597b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner LeadingMarginSpan lms = sp[i]; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstwidth -= sp[i].getLeadingMargin(true); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restwidth -= sp[i].getLeadingMargin(false); 1627b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner if (lms instanceof LeadingMarginSpan.LeadingMarginSpan2) { 163e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt firstWidthLineCount = 164e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt ((LeadingMarginSpan.LeadingMarginSpan2)lms) 165e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt .getLeadingMarginLineCount(); 1667b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner } 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 169e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt chooseht = spanned.getSpans(paraStart, paraEnd, LineHeightSpan.class); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (chooseht.length != 0) { 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (choosehtv == null || 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project choosehtv.length < chooseht.length) { 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project choosehtv = new int[ArrayUtils.idealIntArraySize( 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project chooseht.length)]; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < chooseht.length; i++) { 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int o = spanned.getSpanStart(chooseht[i]); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 181e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (o < paraStart) { 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts in this layout, before the 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // current paragraph 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1854e0c5e55e171532760d5f51e0165563827129d4eDoug Felt choosehtv[i] = getLineTop(getLineForOffset(o)); 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts in this paragraph 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project choosehtv[i] = v; 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 195e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt measured.setPara(source, paraStart, paraEnd, DIR_REQUEST_DEFAULT_LTR); 196e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt char[] chs = measured.mChars; 197e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt float[] widths = measured.mWidths; 198e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt byte[] chdirs = measured.mLevels; 199e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int dir = measured.mDir; 200e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt boolean easy = measured.mEasy; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 202e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt CharSequence sub = source; 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width = firstwidth; 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float w = 0; 207e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int here = paraStart; 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 209e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int ok = paraStart; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float okwidth = w; 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int okascent = 0, okdescent = 0, oktop = 0, okbottom = 0; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 213e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int fit = paraStart; 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float fitwidth = w; 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fitascent = 0, fitdescent = 0, fittop = 0, fitbottom = 0; 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean tab = false; 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21923241887515ed77687c23e29a4a3ffff671666bdDoug Felt for (int spanStart = paraStart, spanEnd = spanStart, nextSpanStart; 22023241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanStart < paraEnd; spanStart = nextSpanStart) { 22123241887515ed77687c23e29a4a3ffff671666bdDoug Felt 22223241887515ed77687c23e29a4a3ffff671666bdDoug Felt if (spanStart == spanEnd) { 22323241887515ed77687c23e29a4a3ffff671666bdDoug Felt if (spanned == null) 22423241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanEnd = paraEnd; 22523241887515ed77687c23e29a4a3ffff671666bdDoug Felt else 22623241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanEnd = spanned.nextSpanTransition(spanStart, paraEnd, 22723241887515ed77687c23e29a4a3ffff671666bdDoug Felt MetricAffectingSpan.class); 22823241887515ed77687c23e29a4a3ffff671666bdDoug Felt 22923241887515ed77687c23e29a4a3ffff671666bdDoug Felt int spanLen = spanEnd - spanStart; 23023241887515ed77687c23e29a4a3ffff671666bdDoug Felt if (spanned == null) { 23123241887515ed77687c23e29a4a3ffff671666bdDoug Felt measured.addStyleRun(paint, spanLen, fm); 23223241887515ed77687c23e29a4a3ffff671666bdDoug Felt } else { 23323241887515ed77687c23e29a4a3ffff671666bdDoug Felt MetricAffectingSpan[] spans = 23423241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanned.getSpans(spanStart, spanEnd, MetricAffectingSpan.class); 23523241887515ed77687c23e29a4a3ffff671666bdDoug Felt measured.addStyleRun(paint, spans, spanLen, fm); 23623241887515ed77687c23e29a4a3ffff671666bdDoug Felt } 23723241887515ed77687c23e29a4a3ffff671666bdDoug Felt } 23823241887515ed77687c23e29a4a3ffff671666bdDoug Felt 23923241887515ed77687c23e29a4a3ffff671666bdDoug Felt nextSpanStart = spanEnd; 240e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int startInPara = spanStart - paraStart; 241e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int endInPara = spanEnd - paraStart; 2424e0c5e55e171532760d5f51e0165563827129d4eDoug Felt 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fmtop = fm.top; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fmbottom = fm.bottom; 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fmascent = fm.ascent; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fmdescent = fm.descent; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 248e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt for (int j = spanStart; j < spanEnd; j++) { 249e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt char c = chs[j - paraStart]; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float before = w; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 252105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (c == '\n') { 253105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project ; 254105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else if (c == '\t') { 255e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w = Layout.nextTab(sub, paraStart, paraEnd, w, null); 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tab = true; 257e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt } else if (c >= 0xD800 && c <= 0xDFFF && j + 1 < spanEnd) { 258e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int emoji = Character.codePointAt(chs, j - paraStart); 259105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 260105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (emoji >= MIN_EMOJI && emoji <= MAX_EMOJI) { 261105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project Bitmap bm = EMOJI_FACTORY. 262105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project getBitmapFromAndroidPua(emoji); 263105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 264105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (bm != null) { 265423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer Paint whichPaint; 266423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 267423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer if (spanned == null) { 268423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer whichPaint = paint; 269423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer } else { 270423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer whichPaint = mWorkPaint; 271423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer } 272423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 2734e0c5e55e171532760d5f51e0165563827129d4eDoug Felt float wid = bm.getWidth() * 274423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer -whichPaint.ascent() / 275423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer bm.getHeight(); 276423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 277423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer w += wid; 278105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project tab = true; 279105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project j++; 280105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 281e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 282105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 283105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 284e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 285105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 286105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 287e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "was " + before + " now " + w + " after " + c + " within " + width); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (w <= width) { 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitwidth = w; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fit = j + 1; 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fmtop < fittop) 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fittop = fmtop; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fmascent < fitascent) 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitascent = fmascent; 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fmdescent > fitdescent) 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitdescent = fmdescent; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fmbottom > fitbottom) 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitbottom = fmbottom; 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * From the Unicode Line Breaking Algorithm: 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (at least approximately) 3084e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * .,:; are class IS: breakpoints 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * except when adjacent to digits 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * / is class SY: a breakpoint 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * except when followed by a digit. 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * - is class HY: a breakpoint 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * except when followed by a digit. 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 316549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * Ideographs are class ID: breakpoints when adjacent, 317549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * except for NS (non-starters), which can be broken 318549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * after but not before. 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == ' ' || c == '\t' || 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((c == '.' || c == ',' || c == ':' || c == ';') && 323e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt (j - 1 < here || !Character.isDigit(chs[j - 1 - paraStart])) && 324e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt (j + 1 >= spanEnd || !Character.isDigit(chs[j + 1 - paraStart]))) || 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((c == '/' || c == '-') && 326e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt (j + 1 >= spanEnd || !Character.isDigit(chs[j + 1 - paraStart]))) || 327549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer (c >= FIRST_CJK && isIdeographic(c, true) && 328e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt j + 1 < spanEnd && isIdeographic(chs[j + 1 - paraStart], false))) { 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okwidth = w; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = j + 1; 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fittop < oktop) 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project oktop = fittop; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fitascent < okascent) 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okascent = fitascent; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fitdescent > okdescent) 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okdescent = fitdescent; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fitbottom > okbottom) 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okbottom = fitbottom; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (breakOnlyAtSpaces) { 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ok != here) { 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output ok " + here + " to " +ok); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 345e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt while (ok < spanEnd && chs[ok - paraStart] == ' ') { 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok++; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here, ok, 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okascent, okdescent, oktop, okbottom, 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, chooseht, 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project choosehtv, fm, tab, 355e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt needMultiply, paraStart, chdirs, dir, easy, 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok == bufend, includepad, trackpad, 357e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt chs, widths, here - paraStart, 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where, ellipsizedWidth, okwidth, 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint); 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here = ok; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Act like it fit even though it didn't. 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitwidth = w; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fit = j + 1; 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fmtop < fittop) 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fittop = fmtop; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fmascent < fitascent) 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitascent = fmascent; 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fmdescent > fitdescent) 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitdescent = fmdescent; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fmbottom > fitbottom) 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitbottom = fmbottom; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ok != here) { 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output ok " + here + " to " +ok); 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 381e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt while (ok < spanEnd && chs[ok - paraStart] == ' ') { 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok++; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here, ok, 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okascent, okdescent, oktop, okbottom, 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, chooseht, 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project choosehtv, fm, tab, 391e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt needMultiply, paraStart, chdirs, dir, easy, 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok == bufend, includepad, trackpad, 393e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt chs, widths, here - paraStart, 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where, ellipsizedWidth, okwidth, 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint); 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here = ok; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (fit != here) { 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output fit " + here + " to " +fit); 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here, fit, 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitascent, fitdescent, 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fittop, fitbottom, 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, chooseht, 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project choosehtv, fm, tab, 407e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt needMultiply, paraStart, chdirs, dir, easy, 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fit == bufend, includepad, trackpad, 409e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt chs, widths, here - paraStart, 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where, ellipsizedWidth, fitwidth, 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint); 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here = fit; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output one " + here + " to " +(here + 1)); 416e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt // XXX not sure why the existing fm wasn't ok. 417e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt // measureText(paint, mWorkPaint, 418e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt // source, here, here + 1, fm, tab, 419e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt // null); 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here, here+1, 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.ascent, fm.descent, 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top, fm.bottom, 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, chooseht, 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project choosehtv, fm, tab, 428e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt needMultiply, paraStart, chdirs, dir, easy, 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here + 1 == bufend, includepad, 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project trackpad, 431e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt chs, widths, here - paraStart, 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where, ellipsizedWidth, 433e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt widths[here - paraStart], paint); 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project here = here + 1; 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 438e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (here < spanStart) { 43923241887515ed77687c23e29a4a3ffff671666bdDoug Felt // didn't output all the text for this span 44023241887515ed77687c23e29a4a3ffff671666bdDoug Felt // we've measured the raw widths, though, so 44123241887515ed77687c23e29a4a3ffff671666bdDoug Felt // just reset the start point 44223241887515ed77687c23e29a4a3ffff671666bdDoug Felt j = nextSpanStart = here; 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project j = here - 1; // continue looping 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = fit = here; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project w = 0; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitascent = fitdescent = fittop = fitbottom = 0; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okascent = okdescent = oktop = okbottom = 0; 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4527b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner if (--firstWidthLineCount <= 0) { 4537b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner width = restwidth; 4547b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner } 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (paraEnd != here) { 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((fittop | fitbottom | fitdescent | fitascent) == 0) { 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.getFontMetricsInt(fm); 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fittop = fm.top; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitbottom = fm.bottom; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitascent = fm.ascent; 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fitdescent = fm.descent; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output rest " + here + " to " + end); 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 472e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt here, paraEnd, fitascent, fitdescent, 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fittop, fitbottom, 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, chooseht, 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project choosehtv, fm, tab, 477e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt needMultiply, paraStart, chdirs, dir, easy, 478e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraEnd == bufend, includepad, trackpad, 479e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt chs, widths, here - paraStart, 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where, ellipsizedWidth, w, paint); 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 483e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraStart = paraEnd; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 485e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (paraEnd == bufend) 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bufend == bufstart || source.charAt(bufend - 1) == '\n') { 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output last " + bufend); 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.getFontMetricsInt(fm); 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bufend, bufend, fm.ascent, fm.descent, 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top, fm.bottom, 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, null, 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null, fm, false, 500e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt needMultiply, bufend, null, DEFAULT_DIR, true, 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project true, includepad, trackpad, 502e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt null, null, bufstart, 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project where, ellipsizedWidth, 0, paint); 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final char FIRST_CJK = '\u2E80'; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if the specified character is one of those specified 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as being Ideographic (class ID) by the Unicode Line Breaking Algorithm 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (http://www.unicode.org/unicode/reports/tr14/), and is therefore OK 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to break between a pair of. 513549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * 514549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * @param includeNonStarters also return true for category NS 515549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * (non-starters), which can be broken 516549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * after but not before. 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 518549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer private static final boolean isIdeographic(char c, boolean includeNonStarters) { 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u2E80' && c <= '\u2FFF') { 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK, KANGXI RADICALS, DESCRIPTION SYMBOLS 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == '\u3000') { 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // IDEOGRAPHIC SPACE 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u3040' && c <= '\u309F') { 526549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer if (!includeNonStarters) { 527549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer switch (c) { 528549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3041': // # HIRAGANA LETTER SMALL A 529549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3043': // # HIRAGANA LETTER SMALL I 530549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3045': // # HIRAGANA LETTER SMALL U 531549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3047': // # HIRAGANA LETTER SMALL E 532549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3049': // # HIRAGANA LETTER SMALL O 533549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3063': // # HIRAGANA LETTER SMALL TU 534549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3083': // # HIRAGANA LETTER SMALL YA 535549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3085': // # HIRAGANA LETTER SMALL YU 536549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3087': // # HIRAGANA LETTER SMALL YO 537549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u308E': // # HIRAGANA LETTER SMALL WA 538549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3095': // # HIRAGANA LETTER SMALL KA 539549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3096': // # HIRAGANA LETTER SMALL KE 540549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309B': // # KATAKANA-HIRAGANA VOICED SOUND MARK 541549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309C': // # KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK 542549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309D': // # HIRAGANA ITERATION MARK 543549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309E': // # HIRAGANA VOICED ITERATION MARK 544549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer return false; 545549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 546549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // Hiragana (except small characters) 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u30A0' && c <= '\u30FF') { 550549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer if (!includeNonStarters) { 551549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer switch (c) { 552549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A0': // # KATAKANA-HIRAGANA DOUBLE HYPHEN 553549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A1': // # KATAKANA LETTER SMALL A 554549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A3': // # KATAKANA LETTER SMALL I 555549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A5': // # KATAKANA LETTER SMALL U 556549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A7': // # KATAKANA LETTER SMALL E 557549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A9': // # KATAKANA LETTER SMALL O 558549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30C3': // # KATAKANA LETTER SMALL TU 559549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E3': // # KATAKANA LETTER SMALL YA 560549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E5': // # KATAKANA LETTER SMALL YU 561549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E7': // # KATAKANA LETTER SMALL YO 562549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30EE': // # KATAKANA LETTER SMALL WA 563549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30F5': // # KATAKANA LETTER SMALL KA 564549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30F6': // # KATAKANA LETTER SMALL KE 565549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FB': // # KATAKANA MIDDLE DOT 566549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FC': // # KATAKANA-HIRAGANA PROLONGED SOUND MARK 567549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FD': // # KATAKANA ITERATION MARK 568549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FE': // # KATAKANA VOICED ITERATION MARK 569549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer return false; 570549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 571549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // Katakana (except small characters) 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u3400' && c <= '\u4DB5') { 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK UNIFIED IDEOGRAPHS EXTENSION A 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u4E00' && c <= '\u9FBB') { 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK UNIFIED IDEOGRAPHS 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uF900' && c <= '\uFAD9') { 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK COMPATIBILITY IDEOGRAPHS 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uA000' && c <= '\uA48F') { 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // YI SYLLABLES 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uA490' && c <= '\uA4CF') { 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // YI RADICALS 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uFE62' && c <= '\uFE66') { 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // SMALL PLUS SIGN to SMALL EQUALS SIGN 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uFF10' && c <= '\uFF19') { 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // WIDE DIGITS 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void dump(byte[] data, int count, String label) { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (false) { 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.out.print(label); 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.out.print(" " + data[i]); 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.out.println(); 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project*/ 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int out(CharSequence text, int start, int end, 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int above, int below, int top, int bottom, int v, 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LineHeightSpan[] chooseht, int[] choosehtv, 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint.FontMetricsInt fm, boolean tab, 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean needMultiply, int pstart, byte[] chdirs, 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dir, boolean easy, boolean last, 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad, boolean trackpad, 620e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt char[] chs, float[] widths, int widstart, 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextUtils.TruncateAt ellipsize, float ellipsiswidth, 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float textwidth, TextPaint paint) { 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int j = mLineCount; 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int off = j * mColumns; 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int want = off + mColumns + TOP; 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] lines = mLines; 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (want >= lines.length) { 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nlen = ArrayUtils.idealIntArraySize(want + 1); 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] grow = new int[nlen]; 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(lines, 0, grow, 0, lines.length); 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines = grow; 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines = grow; 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] grow2 = new Directions[nlen]; 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(mLineDirections, 0, grow2, 0, 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections.length); 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections = grow2; 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (chooseht != null) { 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.ascent = above; 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.descent = below; 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top = top; 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.bottom = bottom; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < chooseht.length; i++) { 648a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer if (chooseht[i] instanceof LineHeightSpan.WithDensity) { 649a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer ((LineHeightSpan.WithDensity) chooseht[i]). 650a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer chooseHeight(text, start, end, choosehtv[i], v, fm, paint); 651a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer 652a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer } else { 653a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer chooseht[i].chooseHeight(text, start, end, choosehtv[i], v, fm); 654a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer } 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project above = fm.ascent; 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project below = fm.descent; 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = fm.top; 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = fm.bottom; 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (j == 0) { 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (trackpad) { 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTopPadding = top - above; 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (includepad) { 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project above = top; 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (last) { 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (trackpad) { 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBottomPadding = bottom - below; 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (includepad) { 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project below = bottom; 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extra; 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (needMultiply) { 6851065758a0f8966a8597a61492112f7859a7050a4Doug Felt double ex = (below - above) * (spacingmult - 1) + spacingadd; 6861065758a0f8966a8597a61492112f7859a7050a4Doug Felt if (ex >= 0) { 6871065758a0f8966a8597a61492112f7859a7050a4Doug Felt extra = (int)(ex + 0.5); 6881065758a0f8966a8597a61492112f7859a7050a4Doug Felt } else { 6891065758a0f8966a8597a61492112f7859a7050a4Doug Felt extra = -(int)(-ex + 0.5); 6901065758a0f8966a8597a61492112f7859a7050a4Doug Felt } 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extra = 0; 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + START] = start; 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + TOP] = v; 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + DESCENT] = below + extra; 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v += (below - above) + extra; 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + mColumns + START] = end; 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + mColumns + TOP] = v; 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tab) 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + TAB] |= TAB_MASK; 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7069f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt lines[off + DIR] |= dir << DIR_SHIFT; 7079f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt Directions linedirs = DIRS_ALL_LEFT_TO_RIGHT; 7089f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt // easy means all chars < the first RTL, so no emoji, no nothing 7094e0c5e55e171532760d5f51e0165563827129d4eDoug Felt // XXX a run with no text or all spaces is easy but might be an empty 7109f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt // RTL paragraph. Make sure easy is false if this is the case. 7119f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt if (easy) { 7129f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt mLineDirections[j] = linedirs; 7139f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt } else { 714e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt mLineDirections[j] = AndroidBidi.directions(dir, chdirs, widstart, chs, 715e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt widstart, end - start); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If ellipsize is in marquee mode, do not apply ellipsis on the first line 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null && (ellipsize != TextUtils.TruncateAt.MARQUEE || j != 0)) { 719e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt calculateEllipsis(start, end, widths, widstart, 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsiswidth, ellipsize, j, 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project textwidth, paint); 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineCount++; 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void calculateEllipsis(int linestart, int lineend, 730e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt float[] widths, int widstart, 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float avail, TextUtils.TruncateAt where, 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int line, float textwidth, TextPaint paint) { 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len = lineend - linestart; 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textwidth <= avail) { 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Everything fits! 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_START] = 0; 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_COUNT] = 0; 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ellipsiswid = paint.measureText("\u2026"); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int ellipsisStart, ellipsisCount; 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where == TextUtils.TruncateAt.START) { 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float sum = 0; 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i = len; i >= 0; i--) { 750e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt float w = widths[i - 1 + linestart - widstart]; 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (w + sum + ellipsiswid > avail) { 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sum += w; 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisStart = 0; 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisCount = i; 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (where == TextUtils.TruncateAt.END || where == TextUtils.TruncateAt.MARQUEE) { 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float sum = 0; 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i = 0; i < len; i++) { 766e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt float w = widths[i + linestart - widstart]; 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (w + sum + ellipsiswid > avail) { 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sum += w; 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisStart = i; 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisCount = len - i; 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else /* where = TextUtils.TruncateAt.MIDDLE */ { 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float lsum = 0, rsum = 0; 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int left = 0, right = len; 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ravail = (avail - ellipsiswid) / 2; 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (right = len; right >= 0; right--) { 783e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt float w = widths[right - 1 + linestart - widstart]; 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (w + rsum > ravail) { 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rsum += w; 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float lavail = avail - ellipsiswid - rsum; 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (left = 0; left < right; left++) { 794e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt float w = widths[left + linestart - widstart]; 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (w + lsum > lavail) { 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lsum += w; 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisStart = left; 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisCount = right - left; 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_START] = ellipsisStart; 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_COUNT] = ellipsisCount; 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 811e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt // Override the base class so we can directly access our members, 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // rather than relying on member functions. 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The logic mirrors that of Layout.getLineForVertical 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME: It may be faster to do a linear search for layouts without many lines. 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineForVertical(int vertical) { 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int high = mLineCount; 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int low = -1; 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int guess; 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] lines = mLines; 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (high - low > 1) { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project guess = (high + low) >> 1; 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lines[mColumns * guess + TOP] > vertical){ 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project high = guess; 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project low = guess; 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (low < 0) { 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return low; 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineCount() { 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLineCount; 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineTop(int line) { 8404e0c5e55e171532760d5f51e0165563827129d4eDoug Felt return mLines[mColumns * line + TOP]; 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineDescent(int line) { 8444e0c5e55e171532760d5f51e0165563827129d4eDoug Felt return mLines[mColumns * line + DESCENT]; 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineStart(int line) { 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + START] & START_MASK; 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getParagraphDirection(int line) { 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + DIR] >> DIR_SHIFT; 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getLineContainsTab(int line) { 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mLines[mColumns * line + TAB] & TAB_MASK) != 0; 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Directions getLineDirections(int line) { 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLineDirections[line]; 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTopPadding() { 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTopPadding; 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBottomPadding() { 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBottomPadding; 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisCount(int line) { 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mColumns < COLUMNS_ELLIPSIZE) { 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + ELLIPSIS_COUNT]; 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisStart(int line) { 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mColumns < COLUMNS_ELLIPSIZE) { 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + ELLIPSIS_START]; 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsizedWidth() { 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mEllipsizedWidth; 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLineCount; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTopPadding, mBottomPadding; 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mColumns; 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mEllipsizedWidth; 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_NORMAL = 3; 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_ELLIPSIZE = 5; 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START = 0; 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR = START; 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB = START; 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOP = 1; 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DESCENT = 2; 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_START = 3; 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_COUNT = 4; 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mLines; 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Directions[] mLineDirections; 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START_MASK = 0x1FFFFFFF; 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR_MASK = 0xC0000000; 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR_SHIFT = 30; 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB_MASK = 0x20000000; 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final char FIRST_RIGHT_TO_LEFT = '\u0590'; 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 920e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt * This is reused across calls to generate() 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 922e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt private MeasuredText mMeasured; 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Paint.FontMetricsInt mFontMetricsInt = new Paint.FontMetricsInt(); 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 925