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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/* GRAPHITE2 LICENSING
Copyright 2010, SIL International
All rights reserved.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of License, or
(at your option) any later version.
This program 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 for more details.
You should also have received a copy of the GNU Lesser General Public
License along with this library in the file named "LICENSE".
If not, write to the Free Software Foundation, 51 Franklin Street,
Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
internet at http://www.fsf.org/licenses/lgpl.html.
Alternatively, the contents of this file may be used under the terms of the
Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
License, as published by the Free Software Foundation, either version 2
of the License or (at your option) any later version.
*/
#pragma once
#include "inc/Main.h"
#include "inc/FeatureVal.h"
namespace graphite2 {
// Forward declarations for implmentation types
class FeatureMap;
class Face;
class FeatureSetting
{
public:
FeatureSetting(int16 theValue, uint16 labelId) : m_label(labelId), m_value(theValue) {};
uint16 label() const { return m_label; }
int16 value() const { return m_value; }
CLASS_NEW_DELETE;
private:
FeatureSetting(const FeatureSetting & fs) : m_label(fs.m_label), m_value(fs.m_value) {};
uint16 m_label;
int16 m_value;
};
class FeatureRef
{
typedef uint32 chunk_t;
static const uint8 SIZEOF_CHUNK = sizeof(chunk_t)*8;
public:
FeatureRef();
FeatureRef(const Face & face, unsigned short & bits_offset, uint32 max_val,
uint32 name, uint16 uiName, uint16 flags,
FeatureSetting *settings, uint16 num_set) throw();
~FeatureRef() throw();
bool applyValToFeature(uint32 val, Features& pDest) const; //defined in GrFaceImp.h
void maskFeature(Features & pDest) const {
if (m_index < pDest.size()) //defensive
pDest[m_index] |= m_mask;
}
uint32 getFeatureVal(const Features& feats) const; //defined in GrFaceImp.h
uint32 getId() const { return m_id; }
uint16 getNameId() const { return m_nameid; }
uint16 getNumSettings() const { return m_numSet; }
uint16 getSettingName(uint16 index) const { return m_nameValues[index].label(); }
int16 getSettingValue(uint16 index) const { return m_nameValues[index].value(); }
uint32 maxVal() const { return m_max; }
const Face* getFace() const { return m_pFace;}
const FeatureMap* getFeatureMap() const;// { return m_pFace;}
CLASS_NEW_DELETE;
private:
FeatureRef(const FeatureRef & rhs);
const Face * m_pFace; //not NULL
FeatureSetting * m_nameValues; // array of name table ids for feature values
chunk_t m_mask, // bit mask to get the value from the vector
m_max; // max value the value can take
uint32 m_id; // feature identifier/name
uint16 m_nameid, // Name table id for feature name
m_flags, // feature flags (unused at the moment but read from the font)
m_numSet; // number of values (number of entries in m_nameValues)
byte m_bits, // how many bits to shift the value into place
m_index; // index into the array to find the ulong to mask
private: //unimplemented
FeatureRef& operator=(const FeatureRef&);
};
inline
FeatureRef::FeatureRef()
: m_pFace(0), m_nameValues(0),
m_mask(0), m_max(0), m_id(0),
m_nameid(0), m_flags(0), m_numSet(0),
m_bits(0), m_index(0)
{
}
class NameAndFeatureRef
{
public:
NameAndFeatureRef(uint32 name = 0) : m_name(name) , m_pFRef(NULL){}
NameAndFeatureRef(const FeatureRef* p/*not NULL*/) : m_name(p->getId()), m_pFRef(p) {}
bool operator<(const NameAndFeatureRef& rhs) const //orders by m_name
{ return m_name<rhs.m_name; }
CLASS_NEW_DELETE
uint32 m_name;
const FeatureRef* m_pFRef;
};
class FeatureMap
{
public:
FeatureMap() : m_numFeats(0), m_feats(NULL), m_pNamedFeats(NULL) {}
~FeatureMap() { delete [] m_feats; delete[] m_pNamedFeats; }
bool readFeats(const Face & face);
const FeatureRef *findFeatureRef(uint32 name) const;
FeatureRef *feature(uint16 index) const { return m_feats + index; }
//GrFeatureRef *featureRef(byte index) { return index < m_numFeats ? m_feats + index : NULL; }
const FeatureRef *featureRef(byte index) const { return index < m_numFeats ? m_feats + index : NULL; }
FeatureVal* cloneFeatures(uint32 langname/*0 means default*/) const; //call destroy_Features when done.
uint16 numFeats() const { return m_numFeats; };
CLASS_NEW_DELETE
private:
friend class SillMap;
uint16 m_numFeats;
FeatureRef *m_feats;
NameAndFeatureRef* m_pNamedFeats; //owned
FeatureVal m_defaultFeatures; //owned
private: //defensive on m_feats, m_pNamedFeats, and m_defaultFeatures
FeatureMap(const FeatureMap&);
FeatureMap& operator=(const FeatureMap&);
};
class SillMap
{
private:
class LangFeaturePair
{
LangFeaturePair(const LangFeaturePair &);
LangFeaturePair & operator = (const LangFeaturePair &);
public:
LangFeaturePair() : m_lang(0), m_pFeatures(0) {}
~LangFeaturePair() { delete m_pFeatures; }
uint32 m_lang;
Features* m_pFeatures; //owns
CLASS_NEW_DELETE
};
public:
SillMap() : m_langFeats(NULL), m_numLanguages(0) {}
~SillMap() { delete[] m_langFeats; }
bool readFace(const Face & face);
bool readSill(const Face & face);
FeatureVal* cloneFeatures(uint32 langname/*0 means default*/) const; //call destroy_Features when done.
uint16 numLanguages() const { return m_numLanguages; };
uint32 getLangName(uint16 index) const { return (index < m_numLanguages)? m_langFeats[index].m_lang : 0; };
const FeatureMap & theFeatureMap() const { return m_FeatureMap; };
private:
FeatureMap m_FeatureMap; //of face
LangFeaturePair * m_langFeats;
uint16 m_numLanguages;
private: //defensive on m_langFeats
SillMap(const SillMap&);
SillMap& operator=(const SillMap&);
};
} // namespace graphite2
struct gr_feature_ref : public graphite2::FeatureRef {};
|
