| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 3 | * |
| 4 | * This code is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License version 2 only, as |
| 6 | * published by the Free Software Foundation. Sun designates this |
| 7 | * particular file as subject to the "Classpath" exception as provided |
| 8 | * by Sun in the LICENSE file that accompanied this code. |
| 9 | * |
| 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| 14 | * accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License version |
| 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | * |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any questions. |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * |
| 28 | * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | #include "LETypes.h" |
| 33 | #include "OpenTypeUtilities.h" |
| 34 | #include "OpenTypeTables.h" |
| 35 | #include "Features.h" |
| 36 | #include "LESwaps.h" |
| 37 | |
| 38 | const FeatureTable *FeatureListTable::getFeatureTable(le_uint16 featureIndex, LETag *featureTag) const |
| 39 | { |
| 40 | if (featureIndex >= SWAPW(featureCount)) { |
| 41 | return 0; |
| 42 | } |
| 43 | |
| 44 | Offset featureTableOffset = featureRecordArray[featureIndex].featureTableOffset; |
| 45 | |
| 46 | *featureTag = SWAPT(featureRecordArray[featureIndex].featureTag); |
| 47 | |
| 48 | return (const FeatureTable *) ((char *) this + SWAPW(featureTableOffset)); |
| 49 | } |
| 50 | |
| 51 | /* |
| 52 | * Note: according to the OpenType Spec. v 1.4, the entries in the Feature |
| 53 | * List Table are sorted alphabetically by feature tag; however, there seem |
| 54 | * to be some fonts which have an unsorted list; that's why the binary search |
| 55 | * is #if 0'd out and replaced by a linear search. |
| 56 | * |
| 57 | * Also note: as of ICU 2.6, this method isn't called anyhow... |
| 58 | */ |
| 59 | const FeatureTable *FeatureListTable::getFeatureTable(LETag featureTag) const |
| 60 | { |
| 61 | #if 0 |
| 62 | Offset featureTableOffset = |
| 63 | OpenTypeUtilities::getTagOffset(featureTag, (TagAndOffsetRecord *) featureRecordArray, SWAPW(featureCount)); |
| 64 | |
| 65 | if (featureTableOffset == 0) { |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | return (const FeatureTable *) ((char *) this + SWAPW(featureTableOffset)); |
| 70 | #else |
| 71 | int count = SWAPW(featureCount); |
| 72 | |
| 73 | for (int i = 0; i < count; i += 1) { |
| 74 | if (SWAPT(featureRecordArray[i].featureTag) == featureTag) { |
| 75 | return (const FeatureTable *) ((char *) this + SWAPW(featureRecordArray[i].featureTableOffset)); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | return 0; |
| 80 | #endif |
| 81 | } |