1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: $
* $Revision: $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"
// We need this to enable namespace support in libgrengine headers.
#define GR_NAMESPACE
// Header files
//
// Standard Library
#include <string>
#include <cassert>
#include "graphite_textsrc.hxx"
#include <vcl/graphite_features.hxx>
// class TextSourceAdaptor implementation.
//
TextSourceAdaptor::~TextSourceAdaptor()
{
delete mpFeatures;
}
gr::UtfType TextSourceAdaptor::utfEncodingForm() {
return gr::kutf16;
}
size_t TextSourceAdaptor::getLength()
{
return maLayoutArgs.mnLength;
}
size_t TextSourceAdaptor::fetch(gr::toffset, size_t, gr::utf32 *)
{
assert(false);
return 0;
}
size_t TextSourceAdaptor::fetch(gr::toffset offset, size_t char_count, gr::utf16 * char_buffer)
{
assert(char_buffer);
size_t copy_count = std::min(size_t(maLayoutArgs.mnLength), char_count);
std::copy(maLayoutArgs.mpStr + offset, maLayoutArgs.mpStr + offset + copy_count, char_buffer);
return copy_count;
}
size_t TextSourceAdaptor::fetch(gr::toffset, size_t, gr::utf8 *)
{
assert(false);
return 0;
}
inline void TextSourceAdaptor::getCharProperties(const int nCharIdx, int & min, int & lim, size_t & depth)
{
maLayoutArgs.ResetPos();
bool rtl = maLayoutArgs.mnFlags & SAL_LAYOUT_BIDI_RTL;
for(depth = ((rtl)? 1:0); maLayoutArgs.maRuns.GetRun(&min, &lim, &rtl); maLayoutArgs.maRuns.NextRun())
{
if (min > nCharIdx)
break;
// Only increase the depth when a change of direction occurs.
depth += int(rtl ^ bool(depth & 0x1));
if (min <= nCharIdx && nCharIdx < lim)
break;
}
// If there is no run for this position increment the depth, but don't
// change if this is out of bounds context
if (lim > 0 && nCharIdx >= lim && nCharIdx < maLayoutArgs.mnEndCharPos)
depth++;
}
bool TextSourceAdaptor::getRightToLeft(gr::toffset nCharIdx)
{
size_t depth;
int min, lim = 0;
getCharProperties(nCharIdx, min, lim, depth);
//printf("getRtl %d,%x=%d\n", nCharIdx, maLayoutArgs.mpStr[nCharIdx], depth & 0x1);
return depth & 0x1;
}
unsigned int TextSourceAdaptor::getDirectionDepth(gr::toffset nCharIdx)
{
size_t depth;
int min, lim;
getCharProperties(nCharIdx, min, lim, depth);
//printf("getDirectionDepth %d,%x=%d\n", nCharIdx, maLayoutArgs.mpStr[nCharIdx], depth);
return depth;
}
float TextSourceAdaptor::getVerticalOffset(gr::toffset)
{
return 0.0f; //TODO: Implement correctly
}
gr::isocode TextSourceAdaptor::getLanguage(gr::toffset)
{
if (mpFeatures && mpFeatures->hasLanguage())
return mpFeatures->getLanguage();
gr::isocode unknown = {{0,0,0,0}};
return unknown;
}
sil_std::pair<gr::toffset, gr::toffset> TextSourceAdaptor::propertyRange(gr::toffset nCharIdx)
{
if (nCharIdx < unsigned(maLayoutArgs.mnMinCharPos))
return sil_std::make_pair(0, maLayoutArgs.mnMinCharPos);
if (nCharIdx < mnEnd)
return sil_std::make_pair(maLayoutArgs.mnMinCharPos, mnEnd);
return sil_std::make_pair(mnEnd, maLayoutArgs.mnLength);
}
size_t TextSourceAdaptor::getFontFeatures(gr::toffset, gr::FeatureSetting * settings)
{
if (mpFeatures) return mpFeatures->getFontFeatures(settings);
return 0;
}
bool TextSourceAdaptor::sameSegment(gr::toffset char_idx1, gr::toffset char_idx2)
{
const sil_std::pair<gr::toffset, gr::toffset>
range1 = propertyRange(char_idx1),
range2 = propertyRange(char_idx2);
return range1 == range2;
}
void TextSourceAdaptor::setFeatures(const grutils::GrFeatureParser * pFeatures)
{
mpFeatures = new grutils::GrFeatureParser(*pFeatures);
}
|
