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 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; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines = new int[ArrayUtils.idealIntArraySize(2 * mColumns)]; 15381541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne mLineDirections = new Directions[ArrayUtils.idealIntArraySize(2 * mColumns)]; 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) { 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; 249cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // here is the offset of the starting character of the line we are currently measuring 250e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int here = paraStart; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 252cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // ok is a character offset located after a word separator (space, tab, number...) where 253cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // we would prefer to cut the current line. Equals to here when no such break was found. 254e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int ok = paraStart; 255121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float okWidth = w; 256121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int okAscent = 0, okDescent = 0, okTop = 0, okBottom = 0; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 258cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // fit is a character offset such that the [here, fit[ range fits in the allowed width. 259cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // We will cut the line there if no ok position is found. 260e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int fit = paraStart; 261121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float fitWidth = w; 262121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fitAscent = 0, fitDescent = 0, fitTop = 0, fitBottom = 0; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 264c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt boolean hasTabOrEmoji = false; 265c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt boolean hasTab = false; 266c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt TabStops tabStops = null; 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 268cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne for (int spanStart = paraStart, spanEnd; spanStart < paraEnd; spanStart = spanEnd) { 26923241887515ed77687c23e29a4a3ffff671666bdDoug Felt 270cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne if (spanned == null) { 271cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne spanEnd = paraEnd; 27223241887515ed77687c23e29a4a3ffff671666bdDoug Felt int spanLen = spanEnd - spanStart; 273cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne measured.addStyleRun(paint, spanLen, fm); 274cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne } else { 275cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne spanEnd = spanned.nextSpanTransition(spanStart, paraEnd, 276cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne MetricAffectingSpan.class); 277cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne int spanLen = spanEnd - spanStart; 278cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne MetricAffectingSpan[] spans = 27923241887515ed77687c23e29a4a3ffff671666bdDoug Felt spanned.getSpans(spanStart, spanEnd, MetricAffectingSpan.class); 280cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne spans = TextUtils.removeEmptySpans(spans, spanned, MetricAffectingSpan.class); 281cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne measured.addStyleRun(paint, spans, spanLen, fm); 28223241887515ed77687c23e29a4a3ffff671666bdDoug Felt } 28323241887515ed77687c23e29a4a3ffff671666bdDoug Felt 284121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmTop = fm.top; 285121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmBottom = fm.bottom; 286121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmAscent = fm.ascent; 287121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int fmDescent = fm.descent; 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 289e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt for (int j = spanStart; j < spanEnd; j++) { 290e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt char c = chs[j - paraStart]; 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 292121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (c == CHAR_NEW_LINE) { 2936611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne // intentionally left empty 294121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio } else if (c == CHAR_TAB) { 295c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (hasTab == false) { 296c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTab = true; 297c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTabOrEmoji = true; 29824ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root if (spanned != null) { 29924ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root // First tab this para, check for tabstops 30074d31ef2b2c42b54fa1f7cf94ea955ea67ab69a0Eric Fischer TabStopSpan[] spans = getParagraphSpans(spanned, paraStart, 30124ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root paraEnd, TabStopSpan.class); 30224ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root if (spans.length > 0) { 30324ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root tabStops = new TabStops(TAB_INCREMENT, spans); 30424ca4545f3fa9ffaf0a84af11f1ab74cd14d232eKenny Root } 305c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 306c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 307c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (tabStops != null) { 308c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt w = tabStops.nextTab(w); 309c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } else { 310c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt w = TabStops.nextDefaultStop(w, TAB_INCREMENT); 311c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt } 312121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio } else if (c >= CHAR_FIRST_HIGH_SURROGATE && c <= CHAR_LAST_LOW_SURROGATE 313121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio && j + 1 < spanEnd) { 314e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt int emoji = Character.codePointAt(chs, j - paraStart); 315105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 316105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (emoji >= MIN_EMOJI && emoji <= MAX_EMOJI) { 3170a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne Bitmap bm = EMOJI_FACTORY.getBitmapFromAndroidPua(emoji); 318105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 319105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if (bm != null) { 320423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer Paint whichPaint; 321423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 322423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer if (spanned == null) { 323423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer whichPaint = paint; 324423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer } else { 325423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer whichPaint = mWorkPaint; 326423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer } 327423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 328d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float wid = bm.getWidth() * -whichPaint.ascent() / bm.getHeight(); 329423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer 330423f0e4205e3c49c6a87b389fa6025772aa7010cEric Fischer w += wid; 331c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt hasTabOrEmoji = true; 332105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project j++; 333105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 334e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 335105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 336105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 337e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 338105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 339105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } else { 340e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt w += widths[j - paraStart]; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34381541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne boolean isSpaceOrTab = c == CHAR_SPACE || c == CHAR_TAB; 34481541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne 34581541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne if (w <= width || isSpaceOrTab) { 346121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitWidth = w; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fit = j + 1; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmTop < fitTop) 350121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop = fmTop; 351121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmAscent < fitAscent) 352121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fmAscent; 353121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmDescent > fitDescent) 354121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitDescent = fmDescent; 355121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fmBottom > fitBottom) 356121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitBottom = fmBottom; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35881541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // From the Unicode Line Breaking Algorithm (at least approximately) 35981541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne boolean isLineBreak = isSpaceOrTab || 36081541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // / is class SY and - is class HY, except when followed by a digit 36181541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne ((c == CHAR_SLASH || c == CHAR_HYPHEN) && 36281541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne (j + 1 >= spanEnd || !Character.isDigit(chs[j + 1 - paraStart]))) || 36381541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // Ideographs are class ID: breakpoints when adjacent, except for NS 36481541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne // (non-starters), which can be broken after but not before 36581541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne (c >= CHAR_FIRST_CJK && isIdeographic(c, true) && 36681541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne j + 1 < spanEnd && isIdeographic(chs[j + 1 - paraStart], false)); 36781541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne 36881541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne if (isLineBreak) { 369121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okWidth = w; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = j + 1; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 372121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitTop < okTop) 373121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okTop = fitTop; 374121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitAscent < okAscent) 375121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okAscent = fitAscent; 376121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitDescent > okDescent) 377121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okDescent = fitDescent; 378121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (fitBottom > okBottom) 379121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okBottom = fitBottom; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 381d434d2334d2362f77d3a3fb0b1f788f667039bbfGilles Debunne } else { 382d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne final boolean moreChars = (j + 1 < spanEnd); 383d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne int endPos; 384d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne int above, below, top, bottom; 385d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float currentTextWidth; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 387d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne if (ok != here) { 388d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne endPos = ok; 389d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne above = okAscent; 390d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne below = okDescent; 391d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne top = okTop; 392d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne bottom = okBottom; 393d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne currentTextWidth = okWidth; 394d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne } else if (fit != here) { 395d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne endPos = fit; 396d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne above = fitAscent; 397d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne below = fitDescent; 398d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne top = fitTop; 399d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne bottom = fitBottom; 400d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne currentTextWidth = fitWidth; 401d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne } else { 402d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne endPos = here + 1; 403d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne above = fm.ascent; 404d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne below = fm.descent; 405d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne top = fm.top; 406d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne bottom = fm.bottom; 407d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne currentTextWidth = widths[here - paraStart]; 408d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne } 409d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne 410d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne v = out(source, here, endPos, 411d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne above, below, top, bottom, 412d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne v, spacingmult, spacingadd, chooseHt,chooseHtv, fm, hasTabOrEmoji, 413d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne needMultiply, chdirs, dir, easy, bufEnd, includepad, trackpad, 414d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne chs, widths, paraStart, ellipsize, ellipsizedWidth, 415d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne currentTextWidth, paint, moreChars); 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 417cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne here = endPos; 418cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne j = here - 1; // restart j-span loop from here, compensating for the j++ 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = fit = here; 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project w = 0; 421121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fitDescent = fitTop = fitBottom = 0; 422121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio okAscent = okDescent = okTop = okBottom = 0; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 424c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (--firstWidthLineLimit <= 0) { 425121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio width = restWidth; 4267b5676e4d40a09ccdbc8b6f691a3d8be23e480d3Mark Wagner } 427cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne 428cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne if (here < spanStart) { 429cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // The text was cut before the beginning of the current span range. 430cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne // Exit the span loop, and get spanStart to start over from here. 431cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne measured.setPos(here); 432cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne spanEnd = here; 433cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne break; 434cd943a7a013952af9b7286fd506fd63bf0993ac1Gilles Debunne } 43581541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne 43681541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne if (mLineCount >= mMaximumVisibleLineCount) { 43781541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne break; 43881541491946bfc4f2e26c171b4ebff4249dca51cGilles Debunne } 4398059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 443ad0b051b133baf92f199c96a8ac1e81b3393190cFabrice Di Meglio if (paraEnd != here && mLineCount < mMaximumVisibleLineCount) { 444121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if ((fitTop | fitBottom | fitDescent | fitAscent) == 0) { 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.getFontMetricsInt(fm); 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 447121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop = fm.top; 448121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitBottom = fm.bottom; 449121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitAscent = fm.ascent; 450121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitDescent = fm.descent; 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Log.e("text", "output rest " + here + " to " + end); 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 456121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio here, paraEnd, fitAscent, fitDescent, 457121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio fitTop, fitBottom, 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 459121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio spacingmult, spacingadd, chooseHt, 460121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHtv, fm, hasTabOrEmoji, 461d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne needMultiply, chdirs, dir, easy, bufEnd, 462d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne includepad, trackpad, chs, 463d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne widths, paraStart, ellipsize, 464d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne ellipsizedWidth, w, paint, paraEnd != bufEnd); 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 467e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt paraStart = paraEnd; 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (paraEnd == bufEnd) 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4738059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if ((bufEnd == bufStart || source.charAt(bufEnd - 1) == CHAR_NEW_LINE) && 474ad0b051b133baf92f199c96a8ac1e81b3393190cFabrice Di Meglio mLineCount < mMaximumVisibleLineCount) { 475121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio // Log.e("text", "output last " + bufEnd); 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.getFontMetricsInt(fm); 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = out(source, 480121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio bufEnd, bufEnd, fm.ascent, fm.descent, 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top, fm.bottom, 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v, 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project spacingmult, spacingadd, null, 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project null, fm, false, 485d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne needMultiply, null, DEFAULT_DIR, true, bufEnd, 486d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne includepad, trackpad, null, 487d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne null, bufStart, ellipsize, 488d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne ellipsizedWidth, 0, paint, false); 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if the specified character is one of those specified 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as being Ideographic (class ID) by the Unicode Line Breaking Algorithm 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (http://www.unicode.org/unicode/reports/tr14/), and is therefore OK 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to break between a pair of. 497549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * 498549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * @param includeNonStarters also return true for category NS 499549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * (non-starters), which can be broken 500549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer * after but not before. 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 502549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer private static final boolean isIdeographic(char c, boolean includeNonStarters) { 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u2E80' && c <= '\u2FFF') { 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK, KANGXI RADICALS, DESCRIPTION SYMBOLS 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c == '\u3000') { 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // IDEOGRAPHIC SPACE 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u3040' && c <= '\u309F') { 510549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer if (!includeNonStarters) { 511549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer switch (c) { 512549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3041': // # HIRAGANA LETTER SMALL A 513549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3043': // # HIRAGANA LETTER SMALL I 514549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3045': // # HIRAGANA LETTER SMALL U 515549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3047': // # HIRAGANA LETTER SMALL E 516549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3049': // # HIRAGANA LETTER SMALL O 517549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3063': // # HIRAGANA LETTER SMALL TU 518549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3083': // # HIRAGANA LETTER SMALL YA 519549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3085': // # HIRAGANA LETTER SMALL YU 520549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3087': // # HIRAGANA LETTER SMALL YO 521549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u308E': // # HIRAGANA LETTER SMALL WA 522549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3095': // # HIRAGANA LETTER SMALL KA 523549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u3096': // # HIRAGANA LETTER SMALL KE 524549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309B': // # KATAKANA-HIRAGANA VOICED SOUND MARK 525549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309C': // # KATAKANA-HIRAGANA SEMI-VOICED SOUND MARK 526549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309D': // # HIRAGANA ITERATION MARK 527549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u309E': // # HIRAGANA VOICED ITERATION MARK 528549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer return false; 529549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 530549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // Hiragana (except small characters) 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u30A0' && c <= '\u30FF') { 534549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer if (!includeNonStarters) { 535549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer switch (c) { 536549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A0': // # KATAKANA-HIRAGANA DOUBLE HYPHEN 537549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A1': // # KATAKANA LETTER SMALL A 538549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A3': // # KATAKANA LETTER SMALL I 539549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A5': // # KATAKANA LETTER SMALL U 540549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A7': // # KATAKANA LETTER SMALL E 541549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30A9': // # KATAKANA LETTER SMALL O 542549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30C3': // # KATAKANA LETTER SMALL TU 543549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E3': // # KATAKANA LETTER SMALL YA 544549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E5': // # KATAKANA LETTER SMALL YU 545549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30E7': // # KATAKANA LETTER SMALL YO 546549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30EE': // # KATAKANA LETTER SMALL WA 547549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30F5': // # KATAKANA LETTER SMALL KA 548549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30F6': // # KATAKANA LETTER SMALL KE 549549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FB': // # KATAKANA MIDDLE DOT 550549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FC': // # KATAKANA-HIRAGANA PROLONGED SOUND MARK 551549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FD': // # KATAKANA ITERATION MARK 552549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer case '\u30FE': // # KATAKANA VOICED ITERATION MARK 553549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer return false; 554549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 555549d7243ff9cf638a63a0d5cc82c792b39484e8eEric Fischer } 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // Katakana (except small characters) 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u3400' && c <= '\u4DB5') { 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK UNIFIED IDEOGRAPHS EXTENSION A 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\u4E00' && c <= '\u9FBB') { 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK UNIFIED IDEOGRAPHS 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uF900' && c <= '\uFAD9') { 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // CJK COMPATIBILITY IDEOGRAPHS 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uA000' && c <= '\uA48F') { 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // YI SYLLABLES 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uA490' && c <= '\uA4CF') { 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // YI RADICALS 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uFE62' && c <= '\uFE66') { 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // SMALL PLUS SIGN to SMALL EQUALS SIGN 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= '\uFF10' && c <= '\uFF19') { 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; // WIDE DIGITS 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int out(CharSequence text, int start, int end, 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int above, int below, int top, int bottom, int v, 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float spacingmult, float spacingadd, 586121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio LineHeightSpan[] chooseHt, int[] chooseHtv, 587c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt Paint.FontMetricsInt fm, boolean hasTabOrEmoji, 588d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne boolean needMultiply, byte[] chdirs, int dir, 589d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne boolean easy, int bufEnd, boolean includePad, 590d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne boolean trackPad, char[] chs, 591d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float[] widths, int widthStart, TextUtils.TruncateAt ellipsize, 592d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne float ellipsisWidth, float textWidth, 593d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne TextPaint paint, boolean moreChars) { 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int j = mLineCount; 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int off = j * mColumns; 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int want = off + mColumns + TOP; 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] lines = mLines; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (want >= lines.length) { 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nlen = ArrayUtils.idealIntArraySize(want + 1); 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] grow = new int[nlen]; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(lines, 0, grow, 0, lines.length); 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines = grow; 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines = grow; 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Directions[] grow2 = new Directions[nlen]; 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(mLineDirections, 0, grow2, 0, 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections.length); 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineDirections = grow2; 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 612121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (chooseHt != null) { 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.ascent = above; 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.descent = below; 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.top = top; 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fm.bottom = bottom; 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 618121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio for (int i = 0; i < chooseHt.length; i++) { 619121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (chooseHt[i] instanceof LineHeightSpan.WithDensity) { 620121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio ((LineHeightSpan.WithDensity) chooseHt[i]). 621121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHeight(text, start, end, chooseHtv[i], v, fm, paint); 622a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer 623a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer } else { 624121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio chooseHt[i].chooseHeight(text, start, end, chooseHtv[i], v, fm); 625a9f1dd021f8f6ee777bc4d27913bd40c42e753afEric Fischer } 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project above = fm.ascent; 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project below = fm.descent; 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project top = fm.top; 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bottom = fm.bottom; 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (j == 0) { 635121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (trackPad) { 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTopPadding = top - above; 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (includePad) { 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project above = top; 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 643d300e75eff0d5e54390400cbd3f80dc4cea8b617Gilles Debunne if (end == bufEnd) { 644121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (trackPad) { 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBottomPadding = bottom - below; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 648121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (includePad) { 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project below = bottom; 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extra; 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (needMultiply) { 6561065758a0f8966a8597a61492112f7859a7050a4Doug Felt double ex = (below - above) * (spacingmult - 1) + spacingadd; 6571065758a0f8966a8597a61492112f7859a7050a4Doug Felt if (ex >= 0) { 658121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio extra = (int)(ex + EXTRA_ROUNDING); 6591065758a0f8966a8597a61492112f7859a7050a4Doug Felt } else { 660121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio extra = -(int)(-ex + EXTRA_ROUNDING); 6611065758a0f8966a8597a61492112f7859a7050a4Doug Felt } 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extra = 0; 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + START] = start; 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + TOP] = v; 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + DESCENT] = below + extra; 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v += (below - above) + extra; 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + mColumns + START] = end; 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + mColumns + TOP] = v; 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 674c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt if (hasTabOrEmoji) 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lines[off + TAB] |= TAB_MASK; 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6779f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt lines[off + DIR] |= dir << DIR_SHIFT; 6789f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt Directions linedirs = DIRS_ALL_LEFT_TO_RIGHT; 6799f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt // easy means all chars < the first RTL, so no emoji, no nothing 6804e0c5e55e171532760d5f51e0165563827129d4eDoug Felt // XXX a run with no text or all spaces is easy but might be an empty 6819f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt // RTL paragraph. Make sure easy is false if this is the case. 6829f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt if (easy) { 6839f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt mLineDirections[j] = linedirs; 6849f7a4442b89cc06cb8cae6992484e7ae795323abDoug Felt } else { 685f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne mLineDirections[j] = AndroidBidi.directions(dir, chdirs, start - widthStart, chs, 686f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne start - widthStart, end - start); 6870a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 689aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (ellipsize != null) { 690aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio // If there is only one line, then do any type of ellipsis except when it is MARQUEE 691aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio // if there are multiple lines, just allow END ellipsis on the last line 692aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio boolean firstLine = (j == 0); 693aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio boolean currentLineIsTheLastVisibleOne = (j + 1 == mMaximumVisibleLineCount); 6948059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio boolean forceEllipsis = moreChars && (mLineCount + 1 == mMaximumVisibleLineCount); 695aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio 69634a126e51aaf22e32c7af808ec6b5a0c41ae3311Fabrice Di Meglio boolean doEllipsis = 69734a126e51aaf22e32c7af808ec6b5a0c41ae3311Fabrice Di Meglio (((mMaximumVisibleLineCount == 1 && moreChars) || (firstLine && !moreChars)) && 698aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsize != TextUtils.TruncateAt.MARQUEE) || 699aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio (!firstLine && (currentLineIsTheLastVisibleOne || !moreChars) && 700aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsize == TextUtils.TruncateAt.END); 701aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (doEllipsis) { 702aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio calculateEllipsis(start, end, widths, widthStart, 703aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsisWidth, ellipsize, j, 704aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio textWidth, paint, forceEllipsis); 705aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio } 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLineCount++; 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return v; 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 712121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private void calculateEllipsis(int lineStart, int lineEnd, 713121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float[] widths, int widthStart, 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float avail, TextUtils.TruncateAt where, 7158059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int line, float textWidth, TextPaint paint, 7168059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio boolean forceEllipsis) { 7178059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (textWidth <= avail && !forceEllipsis) { 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Everything fits! 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_START] = 0; 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_COUNT] = 0; 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 724cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio float ellipsisWidth = paint.measureText( 7258d44fff7e62f77c3b3072a96712cc1389e63ca64Fabrice Di Meglio (where == TextUtils.TruncateAt.END_SMALL) ? 7268d44fff7e62f77c3b3072a96712cc1389e63ca64Fabrice Di Meglio ELLIPSIS_TWO_DOTS : ELLIPSIS_NORMAL, 0, 1); 7278059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int ellipsisStart = 0; 7288059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int ellipsisCount = 0; 729121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio int len = lineEnd - lineStart; 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7318059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio // We only support start ellipsis on a single line 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (where == TextUtils.TruncateAt.START) { 7338059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (mMaximumVisibleLineCount == 1) { 7348059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float sum = 0; 7358059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int i; 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7378059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (i = len; i >= 0; i--) { 7388059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[i - 1 + lineStart - widthStart]; 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7408059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + sum + ellipsisWidth > avail) { 7418059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 7428059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7438059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 7448059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio sum += w; 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7478059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisStart = 0; 7488059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = i; 7498059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 7508059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (Log.isLoggable(TAG, Log.WARN)) { 7518059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio Log.w(TAG, "Start Ellipsis only supported with one line"); 7528059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 754cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio } else if (where == TextUtils.TruncateAt.END || where == TextUtils.TruncateAt.MARQUEE || 755cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio where == TextUtils.TruncateAt.END_SMALL) { 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float sum = 0; 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i = 0; i < len; i++) { 760121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio float w = widths[i + lineStart - widthStart]; 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 762121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio if (w + sum + ellipsisWidth > avail) { 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sum += w; 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisStart = i; 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ellipsisCount = len - i; 771aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio if (forceEllipsis && ellipsisCount == 0 && len > 0) { 772aef455fd5b4c667267deb050bc7997e737b7507eFabrice Di Meglio ellipsisStart = len - 1; 7738059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = 1; 7748059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7758059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 7768059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio // where = TextUtils.TruncateAt.MIDDLE We only support middle ellipsis on a single line 7778059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (mMaximumVisibleLineCount == 1) { 7788059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float lsum = 0, rsum = 0; 7798059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio int left = 0, right = len; 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7818059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float ravail = (avail - ellipsisWidth) / 2; 7828059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (right = len; right >= 0; right--) { 7838059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[right - 1 + lineStart - widthStart]; 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7858059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + rsum > ravail) { 7868059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 7878059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7888059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio 7898059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio rsum += w; 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7928059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float lavail = avail - ellipsisWidth - rsum; 7938059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio for (left = 0; left < right; left++) { 7948059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio float w = widths[left + lineStart - widthStart]; 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7968059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (w + lsum > lavail) { 7978059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio break; 7988059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8008059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio lsum += w; 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8038059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisStart = left; 8048059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio ellipsisCount = right - left; 8058059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } else { 8068059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio if (Log.isLoggable(TAG, Log.WARN)) { 8078059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio Log.w(TAG, "Middle Ellipsis only supported with one line"); 8088059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio } 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_START] = ellipsisStart; 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLines[mColumns * line + ELLIPSIS_COUNT] = ellipsisCount; 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 816e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt // Override the base class so we can directly access our members, 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // rather than relying on member functions. 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The logic mirrors that of Layout.getLineForVertical 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME: It may be faster to do a linear search for layouts without many lines. 8206611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineForVertical(int vertical) { 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int high = mLineCount; 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int low = -1; 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int guess; 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] lines = mLines; 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (high - low > 1) { 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project guess = (high + low) >> 1; 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lines[mColumns * guess + TOP] > vertical){ 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project high = guess; 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project low = guess; 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (low < 0) { 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return low; 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8416611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineCount() { 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLineCount; 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8466611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineTop(int line) { 8480a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne int top = mLines[mColumns * line + TOP]; 8490a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne if (mMaximumVisibleLineCount > 0 && line >= mMaximumVisibleLineCount && 8500a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne line != mLineCount) { 8510a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne top += getBottomPadding(); 8520a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 8530a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne return top; 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8566611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineDescent(int line) { 8580a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne int descent = mLines[mColumns * line + DESCENT]; 859f3fa0cdbaea109b114f7facbb5d42de3fc12bbc8Gilles Debunne if (mMaximumVisibleLineCount > 0 && line >= mMaximumVisibleLineCount - 1 && // -1 intended 8600a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne line != mLineCount) { 8610a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne descent += getBottomPadding(); 8620a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne } 8630a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne return descent; 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8666611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getLineStart(int line) { 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + START] & START_MASK; 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8716611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getParagraphDirection(int line) { 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + DIR] >> DIR_SHIFT; 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8766611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getLineContainsTab(int line) { 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mLines[mColumns * line + TAB] & TAB_MASK) != 0; 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8816611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Directions getLineDirections(int line) { 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLineDirections[line]; 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8866611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTopPadding() { 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTopPadding; 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8916611147383118cd91cc29b31bff9aaf4c853f39dGilles Debunne @Override 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getBottomPadding() { 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mBottomPadding; 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisCount(int line) { 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mColumns < COLUMNS_ELLIPSIZE) { 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + ELLIPSIS_COUNT]; 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsisStart(int line) { 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mColumns < COLUMNS_ELLIPSIZE) { 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mLines[mColumns * line + ELLIPSIS_START]; 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getEllipsizedWidth() { 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mEllipsizedWidth; 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy void prepare() { 920e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy mMeasured = MeasuredText.obtain(); 921e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } 922e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy 923e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy void finish() { 924e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy mMeasured = MeasuredText.recycle(mMeasured); 925e5ea4403ce58982522554b7ff23f41e6551923c1Romain Guy } 9260a4db3c5270440eeb7e4e44a7029926e239ec3bdGilles Debunne 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLineCount; 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTopPadding, mBottomPadding; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mColumns; 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mEllipsizedWidth; 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_NORMAL = 3; 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int COLUMNS_ELLIPSIZE = 5; 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START = 0; 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR = START; 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB = START; 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOP = 1; 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DESCENT = 2; 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_START = 3; 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ELLIPSIS_COUNT = 4; 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int[] mLines; 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Directions[] mLineDirections; 9448059e0903e36cbb5cf8b5c5d5d653acc9bbc8402Fabrice Di Meglio private int mMaximumVisibleLineCount = Integer.MAX_VALUE; 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int START_MASK = 0x1FFFFFFF; 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int DIR_SHIFT = 30; 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TAB_MASK = 0x20000000; 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 950c982f60e982c1d2df9f115ed9a5c3ef3643d0892Doug Felt private static final int TAB_INCREMENT = 20; // same as Layout, but that's private 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 952121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_FIRST_CJK = '\u2E80'; 953121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 954121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_NEW_LINE = '\n'; 955121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_TAB = '\t'; 956121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_SPACE = ' '; 957121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_SLASH = '/'; 958121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final char CHAR_HYPHEN = '-'; 959121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 960121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final double EXTRA_ROUNDING = 0.5; 961cb332649e44db86ff8b4e7f006db4bbfd82fed55Fabrice Di Meglio 962121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final int CHAR_FIRST_HIGH_SURROGATE = 0xD800; 963121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio private static final int CHAR_LAST_LOW_SURROGATE = 0xDFFF; 964121c82c8130c2658f73fb19f3a62eb88c8679968Fabrice Di Meglio 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 966e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt * This is reused across calls to generate() 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 968e8e45f2c05cb3b6d23f30c8f96d8e0b3699cea7aDoug Felt private MeasuredText mMeasured; 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Paint.FontMetricsInt mFontMetricsInt = new Paint.FontMetricsInt(); 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 971