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
|
/*
* Copyright 2011 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 = the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_BITMAP_GLYPH_H_
#define SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_BITMAP_GLYPH_H_
#include <vector>
#include <map>
#include "sfntly/table/subtable.h"
namespace sfntly {
class BitmapGlyph : public SubTable {
public:
struct Offset {
enum {
// header
kVersion = 0,
kSmallGlyphMetricsLength = 5,
kBigGlyphMetricsLength = 8,
// format 1
kGlyphFormat1_imageData = kSmallGlyphMetricsLength,
// format 2
kGlyphFormat2_imageData = kSmallGlyphMetricsLength,
// format 3
// format 4
// format 5
kGlyphFormat5_imageData = 0,
// format 6
kGlyphFormat6_imageData = kBigGlyphMetricsLength,
// format 7
kGlyphFormat7_imageData = kBigGlyphMetricsLength,
// format 8
kGlyphFormat8_numComponents = kSmallGlyphMetricsLength + 1,
kGlyphFormat8_componentArray = kGlyphFormat8_numComponents +
DataSize::kUSHORT,
// format 9
kGlyphFormat9_numComponents = kBigGlyphMetricsLength,
kGlyphFormat9_componentArray = kGlyphFormat9_numComponents +
DataSize::kUSHORT,
// ebdtComponent
kEbdtComponentLength = DataSize::kUSHORT + 2 * DataSize::kCHAR,
kEbdtComponent_glyphCode = 0,
kEbdtComponent_xOffset = 2,
kEbdtComponent_yOffset = 3,
};
};
// TODO(stuartg): builder is not functional at all
// - need to add subclasses for each type of bitmap glyph
class Builder : public SubTable::Builder {
public:
virtual ~Builder();
virtual CALLER_ATTACH FontDataTable* SubBuildTable(ReadableFontData* data);
virtual void SubDataSet();
virtual int32_t SubDataSizeToSerialize();
virtual bool SubReadyToSerialize();
virtual int32_t SubSerialize(WritableFontData* new_data);
int32_t format() { return format_; }
static CALLER_ATTACH Builder* CreateGlyphBuilder(ReadableFontData* data,
int32_t format);
protected:
Builder(WritableFontData* data, int32_t format);
Builder(ReadableFontData* data, int32_t format);
private:
int32_t format_;
};
virtual ~BitmapGlyph();
static CALLER_ATTACH BitmapGlyph* CreateGlyph(ReadableFontData* data,
int32_t format);
int32_t format() { return format_; }
// UNIMPLEMENTED: toString()
protected:
BitmapGlyph(ReadableFontData* data, int32_t format);
private:
int32_t format_;
};
typedef Ptr<BitmapGlyph> BitmapGlyphPtr;
typedef Ptr<BitmapGlyph::Builder> BitmapGlyphBuilderPtr;
typedef std::map<int32_t, BitmapGlyphBuilderPtr> BitmapGlyphBuilderMap;
typedef std::vector<BitmapGlyphBuilderMap> BitmapGlyphBuilderList;
} // namespace sfntly
#endif // SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_BITMAP_GLYPH_H_
|
