StaticLayout.java revision 776abc24cdd18610232a50b997cce3cffa74609b
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; 29776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinskiimport com.android.internal.util.GrowingArrayUtils; 30cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * StaticLayout is a Layout for text that will not be edited after it 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is laid out. Use {@link DynamicLayout} for text that may change. 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This is used by widgets to control text layout. You should not need 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to use this class directly unless you are implementing your own widget 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or custom display object, or would be tempted to call 374e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * {@link android.graphics.Canvas#drawText(java.lang.CharSequence, int, int, 384e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * float, float, android.graphics.Paint) 394e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * Canvas.drawText()} directly.</p> 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Megliopublic class StaticLayout extends Layout { 42121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 438059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio static final String TAG = "StaticLayout"; 448059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, TextPaint paint, 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int width, 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Alignment align, float spacingmult, float spacingadd, 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(source, 0, source.length(), paint, width, align, 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, includepad); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt /** 54cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * @hide 55cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt */ 56cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt public StaticLayout(CharSequence source, TextPaint paint, 57cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt int width, Alignment align, TextDirectionHeuristic textDir, 58cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt float spacingmult, float spacingadd, 59cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt boolean includepad) { 60cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt this(source, 0, source.length(), paint, width, align, textDir, 61cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt spacingmult, spacingadd, includepad); 62cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt } 63cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, int bufstart, int bufend, 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, int outerwidth, 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Alignment align, 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad) { 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(source, bufstart, bufend, paint, outerwidth, align, 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, includepad, null, 0); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 73cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt /** 74cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * @hide 75cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt */ 76cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt public StaticLayout(CharSequence source, int bufstart, int bufend, 77cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextPaint paint, int outerwidth, 78cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt Alignment align, TextDirectionHeuristic textDir, 79cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt float spacingmult, float spacingadd, 80cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt boolean includepad) { 81cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt this(source, bufstart, bufend, paint, outerwidth, align, textDir, 828059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio spacingmult, spacingadd, includepad, null, 0, Integer.MAX_VALUE); 83cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt} 84cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 85cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt public StaticLayout(CharSequence source, int bufstart, int bufend, 86cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextPaint paint, int outerwidth, 87cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt Alignment align, 88cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt float spacingmult, float spacingadd, 89cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt boolean includepad, 90cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextUtils.TruncateAt ellipsize, int ellipsizedWidth) { 91cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt this(source, bufstart, bufend, paint, outerwidth, align, 92cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt TextDirectionHeuristics.FIRSTSTRONG_LTR, 938059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio spacingmult, spacingadd, includepad, ellipsize, ellipsizedWidth, Integer.MAX_VALUE); 94cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt } 95cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt 96cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt /** 97cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt * @hide 98cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt */ 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public StaticLayout(CharSequence source, int bufstart, int bufend, 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TextPaint paint, int outerwidth, 101cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt Alignment align, TextDirectionHeuristic textDir, 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean includepad, 1048059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio TextUtils.TruncateAt ellipsize, int ellipsizedWidth, int maxLines) { 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super((ellipsize == null) 1064e0c5e55e171532760d5f51e0165563827129d4eDoug Felt ? source 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : (source instanceof Spanned) 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ? new SpannedEllipsizer(source) 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project : new Ellipsizer(source), 110cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt paint, outerwidth, align, textDir, spacingmult, spacingadd); 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This is annoying, but we can't refer to the layout until 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * superclass construction is finished, and the superclass 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * constructor wants the reference to the display text. 1164e0c5e55e171532760d5f51e0165563827129d4eDoug Felt * 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will break if the superclass constructor ever actually 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * cares about the content instead of just holding the reference. 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ellipsize != null) { 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Ellipsizer e = (Ellipsizer) getText(); 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mLayout = this; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mWidth = ellipsizedWidth; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.mMethod = ellipsize; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = ellipsizedWidth; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mColumns = COLUMNS_ELLIPSIZE; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mColumns = COLUMNS_NORMAL; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEllipsizedWidth = outerwidth; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 134776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski mLineDirections = ArrayUtils.newUnpaddedArray(Directions.class, 2 * mColumns); 135776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski mLines = new int[mLineDirections.length]; 1368059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio mMaximumVisibleLineCount = maxLines; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 138e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt mMeasured = MeasuredText.obtain(); 139e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt 140d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne generate(source, bufstart, bufend, paint, outerwidth, textDir, spacingmult, 141d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne spacingadd, includepad, includepad, ellipsizedWidth, 142d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne 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; 152776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski mLineDirections = ArrayUtils.newUnpaddedArray(Directions.class, 2 * mColumns); 153776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski mLines = new int[mLineDirections.length]; 15481541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // FIXME This is never recycled 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, 160d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne TextDirectionHeuristic textDir, float spacingmult, 161d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float spacingadd, boolean includepad, 162d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne boolean trackpad, float ellipsizedWidth, 163d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne 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) { 218776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski chooseHtv = ArrayUtils.newUnpaddedIntArray(chooseHt.length); 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 221121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio for (int i = 0; i < chooseHt.length; i++) { 222121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int o = spanned.getSpanStart(chooseHt[i]); 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 224e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt if (o < paraStart) { 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts in this layout, before the 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // current paragraph 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 228121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv[i] = getLineTop(getLineForOffset(o)); 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // starts in this paragraph 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 232121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv[i] = v; 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 238cb379120456d8065d742021fc5c66748fc8a11a8Doug Felt measured.setPara(source, paraStart, paraEnd, textDir); 239e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt char[] chs = measured.mChars; 240e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt float[] widths = measured.mWidths; 241e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt byte[] chdirs = measured.mLevels; 242e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int dir = measured.mDir; 243e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt boolean easy = measured.mEasy; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 245121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int width = firstWidth; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float w = 0; 248cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // here is the offset of the starting character of the line we are currently measuring 249e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int here = paraStart; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 251cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // ok is a character offset located after a word separator (space, tab, number...) where 252cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // we would prefer to cut the current line. Equals to here when no such break was found. 253e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int ok = paraStart; 254121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float okWidth = w; 255121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int okAscent = 0, okDescent = 0, okTop = 0, okBottom = 0; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 257cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // fit is a character offset such that the [here, fit[ range fits in the allowed width. 258cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // We will cut the line there if no ok position is found. 259e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int fit = paraStart; 260121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float fitWidth = w; 261121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fitAscent = 0, fitDescent = 0, fitTop = 0, fitBottom = 0; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 263c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt boolean hasTabOrEmoji = false; 264c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt boolean hasTab = false; 265c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt TabStops tabStops = null; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 267cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne for (int spanStart = paraStart, spanEnd; spanStart < paraEnd; spanStart = spanEnd) { 26823241887515ed77687c23e29a4a3ffff671666bdDoug Felt 269cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne if (spanned == null) { 270cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne spanEnd = paraEnd; 27123241887515ed77687c23e29a4a3ffff671666bdDoug Felt int spanLen = spanEnd - spanStart; 272cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne measured.addStyleRun(paint, spanLen, fm); 273cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne } else { 274cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne spanEnd = spanned.nextSpanTransition(spanStart, paraEnd, 275cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne MetricAffectingSpan.class); 276cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne int spanLen = spanEnd - spanStart; 277cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne MetricAffectingSpan[] spans = 27823241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanned.getSpans(spanStart, spanEnd, MetricAffectingSpan.class); 279cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne spans = TextUtils.removeEmptySpans(spans, spanned, MetricAffectingSpan.class); 280cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne measured.addStyleRun(paint, spans, spanLen, fm); 28123241887515ed77687c23e29a4a3ffff671666bdDoug Felt } 28223241887515ed77687c23e29a4a3ffff671666bdDoug Felt 283121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmTop = fm.top; 284121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmBottom = fm.bottom; 285121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmAscent = fm.ascent; 286121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmDescent = fm.descent; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 288e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt for (int j = spanStart; j < spanEnd; j++) { 289e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt char c = chs[j - paraStart]; 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 291121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (c == CHAR_NEW_LINE) { 2926611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne // intentionally left empty 293121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio } else if (c == CHAR_TAB) { 294c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (hasTab == false) { 295c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTab = true; 296c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTabOrEmoji = true; 29724ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root if (spanned != null) { 29824ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root // First tab this para, check for tabstops 29974d31ef2b2c42b54fa1f7cf94ea955ea67ab69a0Eric Fischer TabStopSpan[] spans = getParagraphSpans(spanned, paraStart, 30024ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root paraEnd, TabStopSpan.class); 30124ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root if (spans.length > 0) { 30224ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root tabStops = new TabStops(TAB_INCREMENT, spans); 30324ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root } 304c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 305c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 306c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (tabStops != null) { 307c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt w = tabStops.nextTab(w); 308c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } else { 309c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt w = TabStops.nextDefaultStop(w, TAB_INCREMENT); 310c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 311121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio } else if (c >= CHAR_FIRST_HIGH_SURROGATE && c <= CHAR_LAST_LOW_SURROGATE 312121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio && j + 1 < spanEnd) { 313e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int emoji = Character.codePointAt(chs, j - paraStart); 314105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 315105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (emoji >= MIN_EMOJI && emoji <= MAX_EMOJI) { 3160a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne Bitmap bm = EMOJI_FACTORY.getBitmapFromAndroidPua(emoji); 317105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 318105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (bm != null) { 319423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer Paint whichPaint; 320423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 321423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer if (spanned == null) { 322423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer whichPaint = paint; 323423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer } else { 324423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer whichPaint = mWorkPaint; 325423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer } 326423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 327d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float wid = bm.getWidth() * -whichPaint.ascent() / bm.getHeight(); 328423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 329423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer w += wid; 330c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTabOrEmoji = true; 331105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project j++; 332105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 333e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 334105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 335105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 336e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 337105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 338105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 339e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3428d087c349f0a3b7946a95869562f020892d47a86Raph Levien boolean isSpaceOrTab = c == CHAR_SPACE || c == CHAR_TAB || c == CHAR_ZWSP; 34381541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne 34481541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne if (w <= width || isSpaceOrTab) { 345121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitWidth = w; 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fit = j + 1; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 348121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmTop < fitTop) 349121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop = fmTop; 350121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmAscent < fitAscent) 351121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fmAscent; 352121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmDescent > fitDescent) 353121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitDescent = fmDescent; 354121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmBottom > fitBottom) 355121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitBottom = fmBottom; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35781541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // From the Unicode Line Breaking Algorithm (at least approximately) 35881541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne boolean isLineBreak = isSpaceOrTab || 35981541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // / is class SY and - is class HY, except when followed by a digit 36081541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne ((c == CHAR_SLASH || c == CHAR_HYPHEN) && 36181541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne (j + 1 >= spanEnd || !Character.isDigit(chs[j + 1 - paraStart]))) || 36281541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // Ideographs are class ID: breakpoints when adjacent, except for NS 36381541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // (non-starters), which can be broken after but not before 36481541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne (c >= CHAR_FIRST_CJK && isIdeographic(c, true) && 36581541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne j + 1 < spanEnd && isIdeographic(chs[j + 1 - paraStart], false)); 36681541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne 36781541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne if (isLineBreak) { 368121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okWidth = w; 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = j + 1; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 371121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitTop < okTop) 372121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okTop = fitTop; 373121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitAscent < okAscent) 374121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okAscent = fitAscent; 375121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitDescent > okDescent) 376121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okDescent = fitDescent; 377121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitBottom > okBottom) 378121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okBottom = fitBottom; 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 380d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne } else { 381d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne final boolean moreChars = (j + 1 < spanEnd); 382d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne int endPos; 383d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne int above, below, top, bottom; 384d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float currentTextWidth; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 386d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne if (ok != here) { 387d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne endPos = ok; 388d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne above = okAscent; 389d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne below = okDescent; 390d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne top = okTop; 391d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne bottom = okBottom; 392d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne currentTextWidth = okWidth; 393d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne } else if (fit != here) { 394d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne endPos = fit; 395d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne above = fitAscent; 396d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne below = fitDescent; 397d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne top = fitTop; 398d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne bottom = fitBottom; 399d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne currentTextWidth = fitWidth; 400d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne } else { 401d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne endPos = here + 1; 402d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne above = fm.ascent; 403d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne below = fm.descent; 404d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne top = fm.top; 405d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne bottom = fm.bottom; 406d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne currentTextWidth = widths[here - paraStart]; 407d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne } 408d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne 409d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne v = out(source, here, endPos, 410d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne above, below, top, bottom, 411d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne v, spacingmult, spacingadd, chooseHt,chooseHtv, fm, hasTabOrEmoji, 412d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne needMultiply, chdirs, dir, easy, bufEnd, includepad, trackpad, 413d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne chs, widths, paraStart, ellipsize, ellipsizedWidth, 414d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne currentTextWidth, paint, moreChars); 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 416cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne here = endPos; 417cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne j = here - 1; // restart j-span loop from here, compensating for the j++ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = fit = here; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project w = 0; 420121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fitDescent = fitTop = fitBottom = 0; 421121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okAscent = okDescent = okTop = okBottom = 0; 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 423c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (--firstWidthLineLimit <= 0) { 424121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio width = restWidth; 4257b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner } 426cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne 427cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne if (here < spanStart) { 428cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // The text was cut before the beginning of the current span range. 429cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // Exit the span loop, and get spanStart to start over from here. 430cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne measured.setPos(here); 431cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne spanEnd = here; 432cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne break; 433cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne } 43481541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne 43581541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne if (mLineCount >= mMaximumVisibleLineCount) { 43681541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne break; 43781541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne } 4388059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 442ad0b051b133baf92f199c96a8ac1e81b3393190cFabrice Di Meglio if (paraEnd != here && mLineCount < mMaximumVisibleLineCount) { 443121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if ((fitTop | fitBottom | fitDescent | fitAscent) == 0) { 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.getFontMetricsInt(fm); 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 446121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop = fm.top; 447121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitBottom = fm.bottom; 448121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fm.ascent; 449121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitDescent = fm.descent; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output rest " + here + " to " + end); 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 455121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio here, paraEnd, fitAscent, fitDescent, 456121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop, fitBottom, 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 458121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio spacingmult, spacingadd, chooseHt, 459121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv, fm, hasTabOrEmoji, 460d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne needMultiply, chdirs, dir, easy, bufEnd, 461d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne includepad, trackpad, chs, 462d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne widths, paraStart, ellipsize, 463d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne ellipsizedWidth, w, paint, paraEnd != bufEnd); 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 466e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraStart = paraEnd; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 468121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (paraEnd == bufEnd) 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4728059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if ((bufEnd == bufStart || source.charAt(bufEnd - 1) == CHAR_NEW_LINE) && 473ad0b051b133baf92f199c96a8ac1e81b3393190cFabrice Di Meglio mLineCount < mMaximumVisibleLineCount) { 474121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio // Log.e("text", "output last " + bufEnd); 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 476e631889e1ae7edc6a2fae495ba504f85820b6a4bFabrice Di Meglio measured.setPara(source, bufStart, bufEnd, textDir); 477e631889e1ae7edc6a2fae495ba504f85820b6a4bFabrice Di Meglio 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.getFontMetricsInt(fm); 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 481121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio bufEnd, bufEnd, fm.ascent, fm.descent, 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top, fm.bottom, 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, null, 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null, fm, false, 486e631889e1ae7edc6a2fae495ba504f85820b6a4bFabrice Di Meglio needMultiply, measured.mLevels, measured.mDir, measured.mEasy, bufEnd, 487d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne includepad, trackpad, null, 488d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne null, bufStart, ellipsize, 489d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne ellipsizedWidth, 0, paint, false); 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if the specified character is one of those specified 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as being Ideographic (class ID) by the Unicode Line Breaking Algorithm 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (http://www.unicode.org/unicode/reports/tr14/), and is therefore OK 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to break between a pair of. 498549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * 499549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * @param includeNonStarters also return true for category NS 500549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * (non-starters), which can be broken 501549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * after but not before. 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 503549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer private static final boolean isIdeographic(char c, boolean includeNonStarters) { 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u2E80' && c <= '\u2FFF') { 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK, KANGXI RADICALS, DESCRIPTION SYMBOLS 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == '\u3000') { 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // IDEOGRAPHIC SPACE 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u3040' && c <= '\u309F') { 511549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer if (!includeNonStarters) { 512549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer switch (c) { 513549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3041': // # HIRAGANA LETTER SMALL A 514549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3043': // # HIRAGANA LETTER SMALL I 515549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3045': // # HIRAGANA LETTER SMALL U 516549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3047': // # HIRAGANA LETTER SMALL E 517549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3049': // # HIRAGANA LETTER SMALL O 518549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3063': // # HIRAGANA LETTER SMALL TU 519549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3083': // # HIRAGANA LETTER SMALL YA 520549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3085': // # HIRAGANA LETTER SMALL YU 521549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3087': // # HIRAGANA LETTER SMALL YO 522549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u308E': // # HIRAGANA LETTER SMALL WA 523549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3095': // # HIRAGANA LETTER SMALL KA 524549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3096': // # HIRAGANA LETTER SMALL KE 525549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309B': // # KATAKANA-HIRAGANA VOICED SOUND MARK 526549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309C': // # KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK 527549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309D': // # HIRAGANA ITERATION MARK 528549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309E': // # HIRAGANA VOICED ITERATION MARK 529549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer return false; 530549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 531549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // Hiragana (except small characters) 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u30A0' && c <= '\u30FF') { 535549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer if (!includeNonStarters) { 536549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer switch (c) { 537549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A0': // # KATAKANA-HIRAGANA DOUBLE HYPHEN 538549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A1': // # KATAKANA LETTER SMALL A 539549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A3': // # KATAKANA LETTER SMALL I 540549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A5': // # KATAKANA LETTER SMALL U 541549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A7': // # KATAKANA LETTER SMALL E 542549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A9': // # KATAKANA LETTER SMALL O 543549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30C3': // # KATAKANA LETTER SMALL TU 544549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E3': // # KATAKANA LETTER SMALL YA 545549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E5': // # KATAKANA LETTER SMALL YU 546549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E7': // # KATAKANA LETTER SMALL YO 547549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30EE': // # KATAKANA LETTER SMALL WA 548549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30F5': // # KATAKANA LETTER SMALL KA 549549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30F6': // # KATAKANA LETTER SMALL KE 550549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FB': // # KATAKANA MIDDLE DOT 551549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FC': // # KATAKANA-HIRAGANA PROLONGED SOUND MARK 552549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FD': // # KATAKANA ITERATION MARK 553549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FE': // # KATAKANA VOICED ITERATION MARK 554549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer return false; 555549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 556549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // Katakana (except small characters) 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u3400' && c <= '\u4DB5') { 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK UNIFIED IDEOGRAPHS EXTENSION A 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u4E00' && c <= '\u9FBB') { 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK UNIFIED IDEOGRAPHS 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uF900' && c <= '\uFAD9') { 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK COMPATIBILITY IDEOGRAPHS 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uA000' && c <= '\uA48F') { 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // YI SYLLABLES 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uA490' && c <= '\uA4CF') { 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // YI RADICALS 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uFE62' && c <= '\uFE66') { 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // SMALL PLUS SIGN to SMALL EQUALS SIGN 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uFF10' && c <= '\uFF19') { 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // WIDE DIGITS 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int out(CharSequence text, int start, int end, 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int above, int below, int top, int bottom, int v, 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 587121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio LineHeightSpan[] chooseHt, int[] chooseHtv, 588c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt Paint.FontMetricsInt fm, boolean hasTabOrEmoji, 589d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne boolean needMultiply, byte[] chdirs, int dir, 590d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne boolean easy, int bufEnd, boolean includePad, 591d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne boolean trackPad, char[] chs, 592d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float[] widths, int widthStart, TextUtils.TruncateAt ellipsize, 593d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float ellipsisWidth, float textWidth, 594d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne TextPaint paint, boolean moreChars) { 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int j = mLineCount; 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int off = j * mColumns; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int want = off + mColumns + TOP; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] lines = mLines; 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (want >= lines.length) { 601776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski Directions[] grow2 = ArrayUtils.newUnpaddedArray( 602776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski Directions.class, GrowingArrayUtils.growSize(want)); 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(mLineDirections, 0, grow2, 0, 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections.length); 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections = grow2; 606776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski 607776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski int[] grow = new int[grow2.length]; 608776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski System.arraycopy(lines, 0, grow, 0, lines.length); 609776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski mLines = grow; 610776abc24cdd18610232a50b997cce3cffa74609bAdam Lesinski lines = grow; 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 613121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (chooseHt != null) { 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.ascent = above; 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.descent = below; 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top = top; 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.bottom = bottom; 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio for (int i = 0; i < chooseHt.length; i++) { 620121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (chooseHt[i] instanceof LineHeightSpan.WithDensity) { 621121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio ((LineHeightSpan.WithDensity) chooseHt[i]). 622121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHeight(text, start, end, chooseHtv[i], v, fm, paint); 623a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer 624a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer } else { 625121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHt[i].chooseHeight(text, start, end, chooseHtv[i], v, fm); 626a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer } 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project above = fm.ascent; 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project below = fm.descent; 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = fm.top; 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = fm.bottom; 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (j == 0) { 636121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (trackPad) { 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTopPadding = top - above; 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 640121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (includePad) { 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project above = top; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 644d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne if (end == bufEnd) { 645121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (trackPad) { 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBottomPadding = bottom - below; 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 649121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (includePad) { 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project below = bottom; 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extra; 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (needMultiply) { 6571065758a0f8966a8597a61492112f7859a7050a4Doug Felt double ex = (below - above) * (spacingmult - 1) + spacingadd; 6581065758a0f8966a8597a61492112f7859a7050a4Doug Felt if (ex >= 0) { 659121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio extra = (int)(ex + EXTRA_ROUNDING); 6601065758a0f8966a8597a61492112f7859a7050a4Doug Felt } else { 661121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio extra = -(int)(-ex + EXTRA_ROUNDING); 6621065758a0f8966a8597a61492112f7859a7050a4Doug Felt } 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extra = 0; 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + START] = start; 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + TOP] = v; 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + DESCENT] = below + extra; 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v += (below - above) + extra; 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + mColumns + START] = end; 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + mColumns + TOP] = v; 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 675c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (hasTabOrEmoji) 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + TAB] |= TAB_MASK; 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6789f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt lines[off + DIR] |= dir << DIR_SHIFT; 6799f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt Directions linedirs = DIRS_ALL_LEFT_TO_RIGHT; 6809f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt // easy means all chars < the first RTL, so no emoji, no nothing 6814e0c5e55e171532760d5f51e0165563827129d4eDoug Felt // XXX a run with no text or all spaces is easy but might be an empty 6829f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt // RTL paragraph. Make sure easy is false if this is the case. 6839f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt if (easy) { 6849f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt mLineDirections[j] = linedirs; 6859f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt } else { 686f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne mLineDirections[j] = AndroidBidi.directions(dir, chdirs, start - widthStart, chs, 687f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne start - widthStart, end - start); 6880a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 690aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (ellipsize != null) { 691aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio // If there is only one line, then do any type of ellipsis except when it is MARQUEE 692aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio // if there are multiple lines, just allow END ellipsis on the last line 693aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio boolean firstLine = (j == 0); 694aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio boolean currentLineIsTheLastVisibleOne = (j + 1 == mMaximumVisibleLineCount); 6958059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio boolean forceEllipsis = moreChars && (mLineCount + 1 == mMaximumVisibleLineCount); 696aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio 69734a126e51aaf22e32c7af808ec6b5a0c41ae3311Fabrice Di Meglio boolean doEllipsis = 69834a126e51aaf22e32c7af808ec6b5a0c41ae3311Fabrice Di Meglio (((mMaximumVisibleLineCount == 1 && moreChars) || (firstLine && !moreChars)) && 699aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsize != TextUtils.TruncateAt.MARQUEE) || 700aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio (!firstLine && (currentLineIsTheLastVisibleOne || !moreChars) && 701aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsize == TextUtils.TruncateAt.END); 702aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (doEllipsis) { 703aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio calculateEllipsis(start, end, widths, widthStart, 704aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsisWidth, ellipsize, j, 705aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio textWidth, paint, forceEllipsis); 706aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio } 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineCount++; 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 713121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private void calculateEllipsis(int lineStart, int lineEnd, 714121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float[] widths, int widthStart, 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float avail, TextUtils.TruncateAt where, 7168059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int line, float textWidth, TextPaint paint, 7178059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio boolean forceEllipsis) { 7188059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (textWidth <= avail && !forceEllipsis) { 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Everything fits! 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_START] = 0; 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_COUNT] = 0; 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 725cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio float ellipsisWidth = paint.measureText( 7268d44fff7e62f77c3b3072a96712cc1389e63ca64Fabrice Di Meglio (where == TextUtils.TruncateAt.END_SMALL) ? 7278d44fff7e62f77c3b3072a96712cc1389e63ca64Fabrice Di Meglio ELLIPSIS_TWO_DOTS : ELLIPSIS_NORMAL, 0, 1); 7288059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int ellipsisStart = 0; 7298059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int ellipsisCount = 0; 730121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int len = lineEnd - lineStart; 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7328059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio // We only support start ellipsis on a single line 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where == TextUtils.TruncateAt.START) { 7348059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (mMaximumVisibleLineCount == 1) { 7358059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float sum = 0; 7368059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int i; 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7388059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (i = len; i >= 0; i--) { 7398059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[i - 1 + lineStart - widthStart]; 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7418059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + sum + ellipsisWidth > avail) { 7428059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 7438059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7448059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 7458059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio sum += w; 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7488059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisStart = 0; 7498059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = i; 7508059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 7518059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (Log.isLoggable(TAG, Log.WARN)) { 7528059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio Log.w(TAG, "Start Ellipsis only supported with one line"); 7538059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 755cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio } else if (where == TextUtils.TruncateAt.END || where == TextUtils.TruncateAt.MARQUEE || 756cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio where == TextUtils.TruncateAt.END_SMALL) { 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float sum = 0; 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i = 0; i < len; i++) { 761121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float w = widths[i + lineStart - widthStart]; 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 763121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (w + sum + ellipsisWidth > avail) { 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sum += w; 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisStart = i; 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisCount = len - i; 772aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (forceEllipsis && ellipsisCount == 0 && len > 0) { 773aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsisStart = len - 1; 7748059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = 1; 7758059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7768059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 7778059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio // where = TextUtils.TruncateAt.MIDDLE We only support middle ellipsis on a single line 7788059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (mMaximumVisibleLineCount == 1) { 7798059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float lsum = 0, rsum = 0; 7808059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int left = 0, right = len; 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7828059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float ravail = (avail - ellipsisWidth) / 2; 7838059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (right = len; right >= 0; right--) { 7848059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[right - 1 + lineStart - widthStart]; 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7868059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + rsum > ravail) { 7878059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 7888059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7898059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 7908059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio rsum += w; 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7938059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float lavail = avail - ellipsisWidth - rsum; 7948059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (left = 0; left < right; left++) { 7958059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[left + lineStart - widthStart]; 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7978059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + lsum > lavail) { 7988059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 7998059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8018059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio lsum += w; 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8048059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisStart = left; 8058059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = right - left; 8068059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 8078059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (Log.isLoggable(TAG, Log.WARN)) { 8088059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio Log.w(TAG, "Middle Ellipsis only supported with one line"); 8098059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_START] = ellipsisStart; 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_COUNT] = ellipsisCount; 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 817e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt // Override the base class so we can directly access our members, 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // rather than relying on member functions. 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The logic mirrors that of Layout.getLineForVertical 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME: It may be faster to do a linear search for layouts without many lines. 8216611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineForVertical(int vertical) { 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int high = mLineCount; 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int low = -1; 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int guess; 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] lines = mLines; 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (high - low > 1) { 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project guess = (high + low) >> 1; 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lines[mColumns * guess + TOP] > vertical){ 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project high = guess; 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project low = guess; 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (low < 0) { 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return low; 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8426611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineCount() { 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLineCount; 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8476611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineTop(int line) { 8490a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne int top = mLines[mColumns * line + TOP]; 8500a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne if (mMaximumVisibleLineCount > 0 && line >= mMaximumVisibleLineCount && 8510a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne line != mLineCount) { 8520a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne top += getBottomPadding(); 8530a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 8540a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne return top; 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8576611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineDescent(int line) { 8590a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne int descent = mLines[mColumns * line + DESCENT]; 860f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne if (mMaximumVisibleLineCount > 0 && line >= mMaximumVisibleLineCount - 1 && // -1 intended 8610a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne line != mLineCount) { 8620a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne descent += getBottomPadding(); 8630a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 8640a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne return descent; 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8676611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineStart(int line) { 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + START] & START_MASK; 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8726611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getParagraphDirection(int line) { 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + DIR] >> DIR_SHIFT; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8776611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getLineContainsTab(int line) { 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mLines[mColumns * line + TAB] & TAB_MASK) != 0; 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8826611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Directions getLineDirections(int line) { 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLineDirections[line]; 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8876611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTopPadding() { 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTopPadding; 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8926611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBottomPadding() { 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBottomPadding; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisCount(int line) { 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mColumns < COLUMNS_ELLIPSIZE) { 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + ELLIPSIS_COUNT]; 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisStart(int line) { 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mColumns < COLUMNS_ELLIPSIZE) { 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + ELLIPSIS_START]; 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsizedWidth() { 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mEllipsizedWidth; 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 920e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy void prepare() { 921e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy mMeasured = MeasuredText.obtain(); 922e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } 923e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy 924e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy void finish() { 925e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy mMeasured = MeasuredText.recycle(mMeasured); 926e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } 9270a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLineCount; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTopPadding, mBottomPadding; 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mColumns; 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mEllipsizedWidth; 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_NORMAL = 3; 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_ELLIPSIZE = 5; 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START = 0; 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR = START; 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB = START; 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOP = 1; 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DESCENT = 2; 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_START = 3; 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_COUNT = 4; 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mLines; 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Directions[] mLineDirections; 9458059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio private int mMaximumVisibleLineCount = Integer.MAX_VALUE; 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START_MASK = 0x1FFFFFFF; 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR_SHIFT = 30; 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB_MASK = 0x20000000; 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 951c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt private static final int TAB_INCREMENT = 20; // same as Layout, but that's private 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 953121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_FIRST_CJK = '\u2E80'; 954121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 955121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_NEW_LINE = '\n'; 956121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_TAB = '\t'; 957121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_SPACE = ' '; 958121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_SLASH = '/'; 959121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_HYPHEN = '-'; 9608d087c349f0a3b7946a95869562f020892d47a86Raph Levien private static final char CHAR_ZWSP = '\u200B'; 961121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 962121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final double EXTRA_ROUNDING = 0.5; 963cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio 964121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final int CHAR_FIRST_HIGH_SURROGATE = 0xD800; 965121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final int CHAR_LAST_LOW_SURROGATE = 0xDFFF; 966121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 968e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt * This is reused across calls to generate() 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 970e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt private MeasuredText mMeasured; 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Paint.FontMetricsInt mFontMetricsInt = new Paint.FontMetricsInt(); 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 973