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.  Oracle designates this
7 * particular file as subject to the "Classpath" exception as provided
8 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26/*
27 *
28 * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved
29 *
30 */
31
32#include "LETypes.h"
33#include "LEFontInstance.h"
34#include "OpenTypeTables.h"
35#include "GlyphPositioningTables.h"
36#include "SinglePositioningSubtables.h"
37#include "ValueRecords.h"
38#include "GlyphIterator.h"
39#include "LESwaps.h"
40
41U_NAMESPACE_BEGIN
42
43le_uint32 SinglePositioningSubtable::process(const LEReferenceTo<SinglePositioningSubtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
44{
45    switch(SWAPW(subtableFormat))
46    {
47    case 0:
48        return 0;
49
50    case 1:
51    {
52      const LEReferenceTo<SinglePositioningFormat1Subtable> subtable(base, success, (const SinglePositioningFormat1Subtable *) this);
53
54      return subtable->process(subtable, glyphIterator, fontInstance, success);
55    }
56
57    case 2:
58    {
59      const LEReferenceTo<SinglePositioningFormat2Subtable> subtable(base, success, (const SinglePositioningFormat2Subtable *) this);
60
61      return subtable->process(subtable, glyphIterator, fontInstance, success);
62    }
63
64    default:
65        return 0;
66    }
67}
68
69le_uint32 SinglePositioningFormat1Subtable::process(const LEReferenceTo<SinglePositioningFormat1Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
70{
71    LEGlyphID glyph = glyphIterator->getCurrGlyphID();
72    le_int32 coverageIndex = getGlyphCoverage(base, glyph, success);
73    if (LE_FAILURE(success)) {
74        return 0;
75    }
76
77    if (coverageIndex >= 0) {
78      valueRecord.adjustPosition(SWAPW(valueFormat), base, *glyphIterator, fontInstance, success);
79
80        return 1;
81    }
82
83    return 0;
84}
85
86le_uint32 SinglePositioningFormat2Subtable::process(const LEReferenceTo<SinglePositioningFormat2Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
87{
88    LEGlyphID glyph = glyphIterator->getCurrGlyphID();
89    le_int16 coverageIndex = (le_int16) getGlyphCoverage(base, glyph, success);
90    if (LE_FAILURE(success)) {
91        return 0;
92    }
93
94    if (coverageIndex >= 0) {
95      valueRecordArray[0].adjustPosition(coverageIndex, SWAPW(valueFormat), base, *glyphIterator, fontInstance, success);
96
97        return 1;
98    }
99
100    return 0;
101}
102
103U_NAMESPACE_END
104