StaticLayout.java revision cb332649e44db86ff8b4e7f006db4bbfd82fed55
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 19105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Projectimport android.graphics.Bitmap; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Paint; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.style.LeadingMarginSpan; 226611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunneimport android.text.style.LeadingMarginSpan.LeadingMarginSpan2; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.style.LineHeightSpan; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.style.MetricAffectingSpan; 25c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Feltimport android.text.style.TabStopSpan; 268059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglioimport android.util.Log; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28cb379120456d8065d742021fc5c66748fc8a11a8Doug Feltimport com.android.internal.util.ArrayUtils; 29cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * StaticLayout is a Layout for text that will not be edited after it 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is laid out. Use {@link DynamicLayout} for text that may change. 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This is used by widgets to control text layout. You should not need 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to use this class directly unless you are implementing your own widget 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or custom display object, or would be tempted to call 364e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * {@link android.graphics.Canvas#drawText(java.lang.CharSequence, int, int, 374e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * float, float, android.graphics.Paint) 384e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * Canvas.drawText()} directly.</p> 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Megliopublic class StaticLayout extends Layout { 41121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 428059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio static final String TAG = "StaticLayout"; 438059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, TextPaint paint, 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Alignment align, float spacingmult, float spacingadd, 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(source, 0, source.length(), paint, width, align, 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, includepad); 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt /** 53cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * @hide 54cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt */ 55cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt public StaticLayout(CharSequence source, TextPaint paint, 56cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt int width, Alignment align, TextDirectionHeuristic textDir, 57cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt float spacingmult, float spacingadd, 58cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt boolean includepad) { 59cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt this(source, 0, source.length(), paint, width, align, textDir, 60cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt spacingmult, spacingadd, includepad); 61cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt } 62cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, int bufstart, int bufend, 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, int outerwidth, 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Alignment align, 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(source, bufstart, bufend, paint, outerwidth, align, 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, includepad, null, 0); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 72cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt /** 73cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * @hide 74cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt */ 75cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt public StaticLayout(CharSequence source, int bufstart, int bufend, 76cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextPaint paint, int outerwidth, 77cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt Alignment align, TextDirectionHeuristic textDir, 78cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt float spacingmult, float spacingadd, 79cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt boolean includepad) { 80cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt this(source, bufstart, bufend, paint, outerwidth, align, textDir, 818059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio spacingmult, spacingadd, includepad, null, 0, Integer.MAX_VALUE); 82cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt} 83cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 84cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt public StaticLayout(CharSequence source, int bufstart, int bufend, 85cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextPaint paint, int outerwidth, 86cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt Alignment align, 87cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt float spacingmult, float spacingadd, 88cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt boolean includepad, 89cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextUtils.TruncateAt ellipsize, int ellipsizedWidth) { 90cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt this(source, bufstart, bufend, paint, outerwidth, align, 91cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextDirectionHeuristics.FIRSTSTRONG_LTR, 928059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio spacingmult, spacingadd, includepad, ellipsize, ellipsizedWidth, Integer.MAX_VALUE); 93cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt } 94cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 95cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt /** 96cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * @hide 97cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, int bufstart, int bufend, 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, int outerwidth, 100cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt Alignment align, TextDirectionHeuristic textDir, 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad, 1038059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio TextUtils.TruncateAt ellipsize, int ellipsizedWidth, int maxLines) { 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super((ellipsize == null) 1054e0c5e55e171532760d5f51e0165563827129d4eDoug Felt ? source 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : (source instanceof Spanned) 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ? new SpannedEllipsizer(source) 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : new Ellipsizer(source), 109cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt paint, outerwidth, align, textDir, spacingmult, spacingadd); 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is annoying, but we can't refer to the layout until 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * superclass construction is finished, and the superclass 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * constructor wants the reference to the display text. 1154e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will break if the superclass constructor ever actually 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cares about the content instead of just holding the reference. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Ellipsizer e = (Ellipsizer) getText(); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mLayout = this; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mWidth = ellipsizedWidth; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mMethod = ellipsize; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = ellipsizedWidth; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mColumns = COLUMNS_ELLIPSIZE; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mColumns = COLUMNS_NORMAL; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = outerwidth; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines = new int[ArrayUtils.idealIntArraySize(2 * mColumns)]; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections = new Directions[ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayUtils.idealIntArraySize(2 * mColumns)]; 1368059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio mMaximumVisibleLineCount = maxLines; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 138e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt mMeasured = MeasuredText.obtain(); 139e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt 140cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt generate(source, bufstart, bufend, paint, outerwidth, align, textDir, 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, includepad, includepad, 1420a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne ellipsizedWidth, ellipsize); 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 144e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt mMeasured = MeasuredText.recycle(mMeasured); 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFontMetricsInt = null; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1488059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio /* package */ StaticLayout(CharSequence text) { 1498059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio super(text, null, 0, null, 0, 0); 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mColumns = COLUMNS_ELLIPSIZE; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines = new int[ArrayUtils.idealIntArraySize(2 * mColumns)]; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections = new Directions[ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayUtils.idealIntArraySize(2 * mColumns)]; 155e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt mMeasured = MeasuredText.obtain(); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 158121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio /* package */ void generate(CharSequence source, int bufStart, int bufEnd, 159121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio TextPaint paint, int outerWidth, 160cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt Alignment align, TextDirectionHeuristic textDir, 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad, boolean trackpad, 1630a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne float ellipsizedWidth, TextUtils.TruncateAt ellipsize) { 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineCount = 0; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int v = 0; 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean needMultiply = (spacingmult != 1 || spacingadd != 0); 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Paint.FontMetricsInt fm = mFontMetricsInt; 170121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int[] chooseHtv = null; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 172e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt MeasuredText measured = mMeasured; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Spanned spanned = null; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (source instanceof Spanned) 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spanned = (Spanned) source; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int DEFAULT_DIR = DIR_LEFT_TO_RIGHT; // XXX 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 180e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int paraEnd; 181121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio for (int paraStart = bufStart; paraStart <= bufEnd; paraStart = paraEnd) { 182121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio paraEnd = TextUtils.indexOf(source, CHAR_NEW_LINE, paraStart, bufEnd); 183e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (paraEnd < 0) 184121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio paraEnd = bufEnd; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else 186e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraEnd++; 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 188c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt int firstWidthLineLimit = mLineCount + 1; 189121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int firstWidth = outerWidth; 190121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int restWidth = outerWidth; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 192121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio LineHeightSpan[] chooseHt = null; 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (spanned != null) { 19574d31ef2b2c42b54fa1f7cf94ea955ea67ab69a0Eric Fischer LeadingMarginSpan[] sp = getParagraphSpans(spanned, paraStart, paraEnd, 196e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt LeadingMarginSpan.class); 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < sp.length; i++) { 1987b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner LeadingMarginSpan lms = sp[i]; 199121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio firstWidth -= sp[i].getLeadingMargin(true); 200121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio restWidth -= sp[i].getLeadingMargin(false); 201cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 202c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt // LeadingMarginSpan2 is odd. The count affects all 203c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt // leading margin spans, not just this particular one, 204c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt // and start from the top of the span, not the top of the 205c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt // paragraph. 206c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (lms instanceof LeadingMarginSpan2) { 207c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt LeadingMarginSpan2 lms2 = (LeadingMarginSpan2) lms; 208c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt int lmsFirstLine = getLineForOffset(spanned.getSpanStart(lms2)); 209121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio firstWidthLineLimit = lmsFirstLine + lms2.getLeadingMarginLineCount(); 2107b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner } 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 213121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHt = getParagraphSpans(spanned, paraStart, paraEnd, LineHeightSpan.class); 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 215121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (chooseHt.length != 0) { 216121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (chooseHtv == null || 217121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv.length < chooseHt.length) { 218121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv = new int[ArrayUtils.idealIntArraySize( 219121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHt.length)]; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 222121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio for (int i = 0; i < chooseHt.length; i++) { 223121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int o = spanned.getSpanStart(chooseHt[i]); 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 225e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (o < paraStart) { 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts in this layout, before the 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // current paragraph 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 229121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv[i] = getLineTop(getLineForOffset(o)); 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts in this paragraph 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 233121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv[i] = v; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 239cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt measured.setPara(source, paraStart, paraEnd, textDir); 240e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt char[] chs = measured.mChars; 241e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt float[] widths = measured.mWidths; 242e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt byte[] chdirs = measured.mLevels; 243e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int dir = measured.mDir; 244e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt boolean easy = measured.mEasy; 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 246121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int width = firstWidth; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float w = 0; 249e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int here = paraStart; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 251e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int ok = paraStart; 252121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float okWidth = w; 253121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int okAscent = 0, okDescent = 0, okTop = 0, okBottom = 0; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 255e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int fit = paraStart; 256121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float fitWidth = w; 257121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fitAscent = 0, fitDescent = 0, fitTop = 0, fitBottom = 0; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt boolean hasTabOrEmoji = false; 260c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt boolean hasTab = false; 261c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt TabStops tabStops = null; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26323241887515ed77687c23e29a4a3ffff671666bdDoug Felt for (int spanStart = paraStart, spanEnd = spanStart, nextSpanStart; 26423241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanStart < paraEnd; spanStart = nextSpanStart) { 26523241887515ed77687c23e29a4a3ffff671666bdDoug Felt 26623241887515ed77687c23e29a4a3ffff671666bdDoug Felt if (spanStart == spanEnd) { 26723241887515ed77687c23e29a4a3ffff671666bdDoug Felt if (spanned == null) 26823241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanEnd = paraEnd; 26923241887515ed77687c23e29a4a3ffff671666bdDoug Felt else 27023241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanEnd = spanned.nextSpanTransition(spanStart, paraEnd, 27123241887515ed77687c23e29a4a3ffff671666bdDoug Felt MetricAffectingSpan.class); 27223241887515ed77687c23e29a4a3ffff671666bdDoug Felt 27323241887515ed77687c23e29a4a3ffff671666bdDoug Felt int spanLen = spanEnd - spanStart; 27423241887515ed77687c23e29a4a3ffff671666bdDoug Felt if (spanned == null) { 27523241887515ed77687c23e29a4a3ffff671666bdDoug Felt measured.addStyleRun(paint, spanLen, fm); 27623241887515ed77687c23e29a4a3ffff671666bdDoug Felt } else { 27723241887515ed77687c23e29a4a3ffff671666bdDoug Felt MetricAffectingSpan[] spans = 27823241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanned.getSpans(spanStart, spanEnd, MetricAffectingSpan.class); 2791e3ac18e7ad03e02819f3e1a89d6a80a2bb7645fGilles Debunne spans = TextUtils.removeEmptySpans(spans, spanned, 2801e3ac18e7ad03e02819f3e1a89d6a80a2bb7645fGilles Debunne MetricAffectingSpan.class); 28123241887515ed77687c23e29a4a3ffff671666bdDoug Felt measured.addStyleRun(paint, spans, spanLen, fm); 28223241887515ed77687c23e29a4a3ffff671666bdDoug Felt } 28323241887515ed77687c23e29a4a3ffff671666bdDoug Felt } 28423241887515ed77687c23e29a4a3ffff671666bdDoug Felt 28523241887515ed77687c23e29a4a3ffff671666bdDoug Felt nextSpanStart = spanEnd; 2864e0c5e55e171532760d5f51e0165563827129d4eDoug Felt 287121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmTop = fm.top; 288121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmBottom = fm.bottom; 289121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmAscent = fm.ascent; 290121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmDescent = fm.descent; 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 292e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt for (int j = spanStart; j < spanEnd; j++) { 293e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt char c = chs[j - paraStart]; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 295121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (c == CHAR_NEW_LINE) { 2966611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne // intentionally left empty 297121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio } else if (c == CHAR_TAB) { 298c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (hasTab == false) { 299c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTab = true; 300c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTabOrEmoji = true; 30124ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root if (spanned != null) { 30224ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root // First tab this para, check for tabstops 30374d31ef2b2c42b54fa1f7cf94ea955ea67ab69a0Eric Fischer TabStopSpan[] spans = getParagraphSpans(spanned, paraStart, 30424ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root paraEnd, TabStopSpan.class); 30524ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root if (spans.length > 0) { 30624ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root tabStops = new TabStops(TAB_INCREMENT, spans); 30724ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root } 308c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 309c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 310c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (tabStops != null) { 311c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt w = tabStops.nextTab(w); 312c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } else { 313c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt w = TabStops.nextDefaultStop(w, TAB_INCREMENT); 314c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 315121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio } else if (c >= CHAR_FIRST_HIGH_SURROGATE && c <= CHAR_LAST_LOW_SURROGATE 316121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio && j + 1 < spanEnd) { 317e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int emoji = Character.codePointAt(chs, j - paraStart); 318105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 319105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (emoji >= MIN_EMOJI && emoji <= MAX_EMOJI) { 3200a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne Bitmap bm = EMOJI_FACTORY.getBitmapFromAndroidPua(emoji); 321105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 322105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (bm != null) { 323423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer Paint whichPaint; 324423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 325423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer if (spanned == null) { 326423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer whichPaint = paint; 327423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer } else { 328423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer whichPaint = mWorkPaint; 329423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer } 330423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 3314e0c5e55e171532760d5f51e0165563827129d4eDoug Felt float wid = bm.getWidth() * 332423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer -whichPaint.ascent() / 333423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer bm.getHeight(); 334423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 335423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer w += wid; 336c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTabOrEmoji = true; 337105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project j++; 338105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 339e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 340105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 341105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 342e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 343105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 344105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 345e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "was " + before + " now " + w + " after " + c + " within " + width); 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (w <= width) { 351121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitWidth = w; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fit = j + 1; 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 354121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmTop < fitTop) 355121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop = fmTop; 356121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmAscent < fitAscent) 357121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fmAscent; 358121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmDescent > fitDescent) 359121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitDescent = fmDescent; 360121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmBottom > fitBottom) 361121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitBottom = fmBottom; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * From the Unicode Line Breaking Algorithm: 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (at least approximately) 3664e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * .,:; are class IS: breakpoints 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * except when adjacent to digits 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * / is class SY: a breakpoint 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * except when followed by a digit. 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * - is class HY: a breakpoint 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * except when followed by a digit. 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 374549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * Ideographs are class ID: breakpoints when adjacent, 375549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * except for NS (non-starters), which can be broken 376549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * after but not before. 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (c == CHAR_SPACE || c == CHAR_TAB || 380121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio ((c == CHAR_DOT || c == CHAR_COMMA || 381121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio c == CHAR_COLON || c == CHAR_SEMICOLON) && 382e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt (j - 1 < here || !Character.isDigit(chs[j - 1 - paraStart])) && 383e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt (j + 1 >= spanEnd || !Character.isDigit(chs[j + 1 - paraStart]))) || 384121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio ((c == CHAR_SLASH || c == CHAR_HYPHEN) && 385e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt (j + 1 >= spanEnd || !Character.isDigit(chs[j + 1 - paraStart]))) || 386121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio (c >= CHAR_FIRST_CJK && isIdeographic(c, true) && 387e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt j + 1 < spanEnd && isIdeographic(chs[j + 1 - paraStart], false))) { 388121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okWidth = w; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = j + 1; 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 391121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitTop < okTop) 392121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okTop = fitTop; 393121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitAscent < okAscent) 394121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okAscent = fitAscent; 395121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitDescent > okDescent) 396121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okDescent = fitDescent; 397121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitBottom > okBottom) 398121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okBottom = fitBottom; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 400d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne } else { 4018059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio final boolean moreChars = (j + 1 < spanEnd); 402d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne if (ok != here) { 403d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne // Log.e("text", "output ok " + here + " to " +ok); 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 405121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio while (ok < spanEnd && chs[ok - paraStart] == CHAR_SPACE) { 406d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne ok++; 407d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne } 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 409d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne v = out(source, 410d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne here, ok, 411121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okAscent, okDescent, okTop, okBottom, 412d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne v, 413121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio spacingmult, spacingadd, chooseHt, 414121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv, fm, hasTabOrEmoji, 415d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne needMultiply, paraStart, chdirs, dir, easy, 416121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio ok == bufEnd, includepad, trackpad, 417f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne chs, widths, paraStart, 418121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio ellipsize, ellipsizedWidth, okWidth, 4198059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio paint, moreChars); 420d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne 421d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne here = ok; 422d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne } else if (fit != here) { 423d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne // Log.e("text", "output fit " + here + " to " +fit); 424d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne v = out(source, 425d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne here, fit, 426121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent, fitDescent, 427121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop, fitBottom, 428d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne v, 429121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio spacingmult, spacingadd, chooseHt, 430121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv, fm, hasTabOrEmoji, 431d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne needMultiply, paraStart, chdirs, dir, easy, 432121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fit == bufEnd, includepad, trackpad, 433f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne chs, widths, paraStart, 434121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio ellipsize, ellipsizedWidth, fitWidth, 4358059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio paint, moreChars); 436d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne 437d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne here = fit; 438d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne } else { 439d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne // Log.e("text", "output one " + here + " to " +(here + 1)); 440d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne // XXX not sure why the existing fm wasn't ok. 441d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne // measureText(paint, mWorkPaint, 442d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne // source, here, here + 1, fm, tab, 443d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne // null); 444d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne 445d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne v = out(source, 446d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne here, here+1, 447d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne fm.ascent, fm.descent, 448d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne fm.top, fm.bottom, 449d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne v, 450121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio spacingmult, spacingadd, chooseHt, 451121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv, fm, hasTabOrEmoji, 452d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne needMultiply, paraStart, chdirs, dir, easy, 453121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio here + 1 == bufEnd, includepad, 454d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne trackpad, 455f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne chs, widths, paraStart, 4560a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne ellipsize, ellipsizedWidth, 4578059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio widths[here - paraStart], paint, moreChars); 458d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne 459d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne here = here + 1; 460d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne } 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 462e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (here < spanStart) { 46323241887515ed77687c23e29a4a3ffff671666bdDoug Felt // didn't output all the text for this span 46423241887515ed77687c23e29a4a3ffff671666bdDoug Felt // we've measured the raw widths, though, so 46523241887515ed77687c23e29a4a3ffff671666bdDoug Felt // just reset the start point 46623241887515ed77687c23e29a4a3ffff671666bdDoug Felt j = nextSpanStart = here; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project j = here - 1; // continue looping 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = fit = here; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project w = 0; 473121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fitDescent = fitTop = fitBottom = 0; 474121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okAscent = okDescent = okTop = okBottom = 0; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 476c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (--firstWidthLineLimit <= 0) { 477121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio width = restWidth; 4787b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner } 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4808059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (mLineCount >= mMaximumVisibleLineCount) { 4818059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 4828059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4868059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (paraEnd != here && mLineCount < mMaximumVisibleLineCount) { 487121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if ((fitTop | fitBottom | fitDescent | fitAscent) == 0) { 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.getFontMetricsInt(fm); 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 490121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop = fm.top; 491121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitBottom = fm.bottom; 492121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fm.ascent; 493121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitDescent = fm.descent; 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output rest " + here + " to " + end); 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 499121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio here, paraEnd, fitAscent, fitDescent, 500121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop, fitBottom, 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 502121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio spacingmult, spacingadd, chooseHt, 503121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv, fm, hasTabOrEmoji, 504e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt needMultiply, paraStart, chdirs, dir, easy, 505121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio paraEnd == bufEnd, includepad, trackpad, 506f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne chs, widths, paraStart, 5078059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsize, ellipsizedWidth, w, paint, paraEnd != bufEnd); 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 510e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraStart = paraEnd; 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 512121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (paraEnd == bufEnd) 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5168059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if ((bufEnd == bufStart || source.charAt(bufEnd - 1) == CHAR_NEW_LINE) && 5178059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio mLineCount < mMaximumVisibleLineCount) { 518121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio // Log.e("text", "output last " + bufEnd); 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.getFontMetricsInt(fm); 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 523121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio bufEnd, bufEnd, fm.ascent, fm.descent, 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top, fm.bottom, 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, null, 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null, fm, false, 528121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio needMultiply, bufEnd, null, DEFAULT_DIR, true, 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project true, includepad, trackpad, 530121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio null, null, bufStart, 5318059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsize, ellipsizedWidth, 0, paint, false); 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if the specified character is one of those specified 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as being Ideographic (class ID) by the Unicode Line Breaking Algorithm 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (http://www.unicode.org/unicode/reports/tr14/), and is therefore OK 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to break between a pair of. 540549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * 541549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * @param includeNonStarters also return true for category NS 542549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * (non-starters), which can be broken 543549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * after but not before. 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 545549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer private static final boolean isIdeographic(char c, boolean includeNonStarters) { 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u2E80' && c <= '\u2FFF') { 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK, KANGXI RADICALS, DESCRIPTION SYMBOLS 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == '\u3000') { 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // IDEOGRAPHIC SPACE 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u3040' && c <= '\u309F') { 553549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer if (!includeNonStarters) { 554549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer switch (c) { 555549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3041': // # HIRAGANA LETTER SMALL A 556549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3043': // # HIRAGANA LETTER SMALL I 557549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3045': // # HIRAGANA LETTER SMALL U 558549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3047': // # HIRAGANA LETTER SMALL E 559549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3049': // # HIRAGANA LETTER SMALL O 560549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3063': // # HIRAGANA LETTER SMALL TU 561549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3083': // # HIRAGANA LETTER SMALL YA 562549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3085': // # HIRAGANA LETTER SMALL YU 563549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3087': // # HIRAGANA LETTER SMALL YO 564549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u308E': // # HIRAGANA LETTER SMALL WA 565549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3095': // # HIRAGANA LETTER SMALL KA 566549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3096': // # HIRAGANA LETTER SMALL KE 567549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309B': // # KATAKANA-HIRAGANA VOICED SOUND MARK 568549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309C': // # KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK 569549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309D': // # HIRAGANA ITERATION MARK 570549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309E': // # HIRAGANA VOICED ITERATION MARK 571549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer return false; 572549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 573549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // Hiragana (except small characters) 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u30A0' && c <= '\u30FF') { 577549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer if (!includeNonStarters) { 578549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer switch (c) { 579549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A0': // # KATAKANA-HIRAGANA DOUBLE HYPHEN 580549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A1': // # KATAKANA LETTER SMALL A 581549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A3': // # KATAKANA LETTER SMALL I 582549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A5': // # KATAKANA LETTER SMALL U 583549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A7': // # KATAKANA LETTER SMALL E 584549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A9': // # KATAKANA LETTER SMALL O 585549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30C3': // # KATAKANA LETTER SMALL TU 586549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E3': // # KATAKANA LETTER SMALL YA 587549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E5': // # KATAKANA LETTER SMALL YU 588549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E7': // # KATAKANA LETTER SMALL YO 589549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30EE': // # KATAKANA LETTER SMALL WA 590549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30F5': // # KATAKANA LETTER SMALL KA 591549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30F6': // # KATAKANA LETTER SMALL KE 592549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FB': // # KATAKANA MIDDLE DOT 593549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FC': // # KATAKANA-HIRAGANA PROLONGED SOUND MARK 594549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FD': // # KATAKANA ITERATION MARK 595549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FE': // # KATAKANA VOICED ITERATION MARK 596549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer return false; 597549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 598549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // Katakana (except small characters) 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u3400' && c <= '\u4DB5') { 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK UNIFIED IDEOGRAPHS EXTENSION A 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u4E00' && c <= '\u9FBB') { 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK UNIFIED IDEOGRAPHS 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uF900' && c <= '\uFAD9') { 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK COMPATIBILITY IDEOGRAPHS 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uA000' && c <= '\uA48F') { 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // YI SYLLABLES 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uA490' && c <= '\uA4CF') { 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // YI RADICALS 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uFE62' && c <= '\uFE66') { 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // SMALL PLUS SIGN to SMALL EQUALS SIGN 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uFF10' && c <= '\uFF19') { 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // WIDE DIGITS 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int out(CharSequence text, int start, int end, 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int above, int below, int top, int bottom, int v, 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 629121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio LineHeightSpan[] chooseHt, int[] chooseHtv, 630c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt Paint.FontMetricsInt fm, boolean hasTabOrEmoji, 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean needMultiply, int pstart, byte[] chdirs, 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dir, boolean easy, boolean last, 633121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio boolean includePad, boolean trackPad, 634121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio char[] chs, float[] widths, int widthStart, 635121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio TextUtils.TruncateAt ellipsize, float ellipsisWidth, 6368059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float textWidth, TextPaint paint, boolean moreChars) { 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int j = mLineCount; 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int off = j * mColumns; 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int want = off + mColumns + TOP; 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] lines = mLines; 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (want >= lines.length) { 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nlen = ArrayUtils.idealIntArraySize(want + 1); 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] grow = new int[nlen]; 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(lines, 0, grow, 0, lines.length); 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines = grow; 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines = grow; 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] grow2 = new Directions[nlen]; 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(mLineDirections, 0, grow2, 0, 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections.length); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections = grow2; 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 655121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (chooseHt != null) { 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.ascent = above; 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.descent = below; 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top = top; 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.bottom = bottom; 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 661121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio for (int i = 0; i < chooseHt.length; i++) { 662121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (chooseHt[i] instanceof LineHeightSpan.WithDensity) { 663121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio ((LineHeightSpan.WithDensity) chooseHt[i]). 664121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHeight(text, start, end, chooseHtv[i], v, fm, paint); 665a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer 666a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer } else { 667121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHt[i].chooseHeight(text, start, end, chooseHtv[i], v, fm); 668a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer } 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project above = fm.ascent; 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project below = fm.descent; 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = fm.top; 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = fm.bottom; 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (j == 0) { 678121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (trackPad) { 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTopPadding = top - above; 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 682121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (includePad) { 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project above = top; 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (last) { 687121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (trackPad) { 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBottomPadding = bottom - below; 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 691121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (includePad) { 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project below = bottom; 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extra; 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (needMultiply) { 6991065758a0f8966a8597a61492112f7859a7050a4Doug Felt double ex = (below - above) * (spacingmult - 1) + spacingadd; 7001065758a0f8966a8597a61492112f7859a7050a4Doug Felt if (ex >= 0) { 701121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio extra = (int)(ex + EXTRA_ROUNDING); 7021065758a0f8966a8597a61492112f7859a7050a4Doug Felt } else { 703121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio extra = -(int)(-ex + EXTRA_ROUNDING); 7041065758a0f8966a8597a61492112f7859a7050a4Doug Felt } 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extra = 0; 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + START] = start; 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + TOP] = v; 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + DESCENT] = below + extra; 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v += (below - above) + extra; 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + mColumns + START] = end; 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + mColumns + TOP] = v; 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 717c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (hasTabOrEmoji) 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + TAB] |= TAB_MASK; 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7209f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt lines[off + DIR] |= dir << DIR_SHIFT; 7219f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt Directions linedirs = DIRS_ALL_LEFT_TO_RIGHT; 7229f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt // easy means all chars < the first RTL, so no emoji, no nothing 7234e0c5e55e171532760d5f51e0165563827129d4eDoug Felt // XXX a run with no text or all spaces is easy but might be an empty 7249f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt // RTL paragraph. Make sure easy is false if this is the case. 7259f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt if (easy) { 7269f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt mLineDirections[j] = linedirs; 7279f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt } else { 728f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne mLineDirections[j] = AndroidBidi.directions(dir, chdirs, start - widthStart, chs, 729f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne start - widthStart, end - start); 7300a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 732aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (ellipsize != null) { 733aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio // If there is only one line, then do any type of ellipsis except when it is MARQUEE 734aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio // if there are multiple lines, just allow END ellipsis on the last line 735aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio boolean firstLine = (j == 0); 736aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio boolean currentLineIsTheLastVisibleOne = (j + 1 == mMaximumVisibleLineCount); 7378059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio boolean forceEllipsis = moreChars && (mLineCount + 1 == mMaximumVisibleLineCount); 738aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio 739aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio boolean doEllipsis = (firstLine && !moreChars && 740aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsize != TextUtils.TruncateAt.MARQUEE) || 741aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio (!firstLine && (currentLineIsTheLastVisibleOne || !moreChars) && 742aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsize == TextUtils.TruncateAt.END); 743aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (doEllipsis) { 744aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio calculateEllipsis(start, end, widths, widthStart, 745aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsisWidth, ellipsize, j, 746aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio textWidth, paint, forceEllipsis); 747aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio } 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineCount++; 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 754121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private void calculateEllipsis(int lineStart, int lineEnd, 755121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float[] widths, int widthStart, 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float avail, TextUtils.TruncateAt where, 7578059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int line, float textWidth, TextPaint paint, 7588059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio boolean forceEllipsis) { 7598059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (textWidth <= avail && !forceEllipsis) { 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Everything fits! 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_START] = 0; 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_COUNT] = 0; 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 766cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio float ellipsisWidth = paint.measureText( 767cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio (where == TextUtils.TruncateAt.END_SMALL) ? ELLIPSIS_TWO_DOTS : ELLIPSIS_NORMAL); 7688059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int ellipsisStart = 0; 7698059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int ellipsisCount = 0; 770121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int len = lineEnd - lineStart; 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7728059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio // We only support start ellipsis on a single line 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where == TextUtils.TruncateAt.START) { 7748059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (mMaximumVisibleLineCount == 1) { 7758059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float sum = 0; 7768059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int i; 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7788059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (i = len; i >= 0; i--) { 7798059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[i - 1 + lineStart - widthStart]; 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7818059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + sum + ellipsisWidth > avail) { 7828059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 7838059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7848059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 7858059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio sum += w; 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7888059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisStart = 0; 7898059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = i; 7908059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 7918059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (Log.isLoggable(TAG, Log.WARN)) { 7928059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio Log.w(TAG, "Start Ellipsis only supported with one line"); 7938059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 795cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio } else if (where == TextUtils.TruncateAt.END || where == TextUtils.TruncateAt.MARQUEE || 796cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio where == TextUtils.TruncateAt.END_SMALL) { 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float sum = 0; 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i = 0; i < len; i++) { 801121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float w = widths[i + lineStart - widthStart]; 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 803121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (w + sum + ellipsisWidth > avail) { 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sum += w; 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisStart = i; 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisCount = len - i; 812aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (forceEllipsis && ellipsisCount == 0 && len > 0) { 813aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsisStart = len - 1; 8148059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = 1; 8158059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 8168059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 8178059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio // where = TextUtils.TruncateAt.MIDDLE We only support middle ellipsis on a single line 8188059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (mMaximumVisibleLineCount == 1) { 8198059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float lsum = 0, rsum = 0; 8208059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int left = 0, right = len; 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8228059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float ravail = (avail - ellipsisWidth) / 2; 8238059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (right = len; right >= 0; right--) { 8248059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[right - 1 + lineStart - widthStart]; 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8268059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + rsum > ravail) { 8278059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 8288059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 8298059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 8308059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio rsum += w; 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8338059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float lavail = avail - ellipsisWidth - rsum; 8348059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (left = 0; left < right; left++) { 8358059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[left + lineStart - widthStart]; 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8378059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + lsum > lavail) { 8388059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 8398059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8418059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio lsum += w; 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8448059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisStart = left; 8458059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = right - left; 8468059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 8478059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (Log.isLoggable(TAG, Log.WARN)) { 8488059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio Log.w(TAG, "Middle Ellipsis only supported with one line"); 8498059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_START] = ellipsisStart; 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_COUNT] = ellipsisCount; 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 857e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt // Override the base class so we can directly access our members, 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // rather than relying on member functions. 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The logic mirrors that of Layout.getLineForVertical 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME: It may be faster to do a linear search for layouts without many lines. 8616611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineForVertical(int vertical) { 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int high = mLineCount; 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int low = -1; 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int guess; 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] lines = mLines; 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (high - low > 1) { 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project guess = (high + low) >> 1; 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lines[mColumns * guess + TOP] > vertical){ 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project high = guess; 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project low = guess; 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (low < 0) { 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return low; 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8826611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineCount() { 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLineCount; 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8876611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineTop(int line) { 8890a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne int top = mLines[mColumns * line + TOP]; 8900a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne if (mMaximumVisibleLineCount > 0 && line >= mMaximumVisibleLineCount && 8910a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne line != mLineCount) { 8920a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne top += getBottomPadding(); 8930a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 8940a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne return top; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8976611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineDescent(int line) { 8990a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne int descent = mLines[mColumns * line + DESCENT]; 900f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne if (mMaximumVisibleLineCount > 0 && line >= mMaximumVisibleLineCount - 1 && // -1 intended 9010a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne line != mLineCount) { 9020a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne descent += getBottomPadding(); 9030a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 9040a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne return descent; 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9076611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineStart(int line) { 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + START] & START_MASK; 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9126611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getParagraphDirection(int line) { 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + DIR] >> DIR_SHIFT; 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9176611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getLineContainsTab(int line) { 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mLines[mColumns * line + TAB] & TAB_MASK) != 0; 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9226611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Directions getLineDirections(int line) { 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLineDirections[line]; 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9276611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTopPadding() { 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTopPadding; 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9326611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBottomPadding() { 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBottomPadding; 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisCount(int line) { 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mColumns < COLUMNS_ELLIPSIZE) { 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + ELLIPSIS_COUNT]; 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisStart(int line) { 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mColumns < COLUMNS_ELLIPSIZE) { 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + ELLIPSIS_START]; 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsizedWidth() { 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mEllipsizedWidth; 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 960e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy void prepare() { 961e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy mMeasured = MeasuredText.obtain(); 962e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } 963e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy 964e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy void finish() { 965e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy mMeasured = MeasuredText.recycle(mMeasured); 966e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } 9670a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLineCount; 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTopPadding, mBottomPadding; 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mColumns; 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mEllipsizedWidth; 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_NORMAL = 3; 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_ELLIPSIZE = 5; 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START = 0; 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR = START; 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB = START; 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOP = 1; 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DESCENT = 2; 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_START = 3; 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_COUNT = 4; 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mLines; 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Directions[] mLineDirections; 9858059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio private int mMaximumVisibleLineCount = Integer.MAX_VALUE; 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START_MASK = 0x1FFFFFFF; 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR_SHIFT = 30; 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB_MASK = 0x20000000; 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 991c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt private static final int TAB_INCREMENT = 20; // same as Layout, but that's private 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 993121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_FIRST_CJK = '\u2E80'; 994121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 995121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_NEW_LINE = '\n'; 996121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_TAB = '\t'; 997121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_SPACE = ' '; 998121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_DOT = '.'; 999121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_COMMA = ','; 1000121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_COLON = ':'; 1001121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_SEMICOLON = ';'; 1002121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_SLASH = '/'; 1003121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_HYPHEN = '-'; 1004121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 1005121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final double EXTRA_ROUNDING = 0.5; 1006cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio 1007cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio private static final String ELLIPSIS_NORMAL = "\u2026"; // this is "..." 1008cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio private static final String ELLIPSIS_TWO_DOTS = "\u2025"; // this is ".." 1009121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 1010121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final int CHAR_FIRST_HIGH_SURROGATE = 0xD800; 1011121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final int CHAR_LAST_LOW_SURROGATE = 0xDFFF; 1012121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1014e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt * This is reused across calls to generate() 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1016e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt private MeasuredText mMeasured; 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Paint.FontMetricsInt mFontMetricsInt = new Paint.FontMetricsInt(); 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1019