1/*
2 * Copyright 2011 Google Inc. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_SMALL_GLYPH_METRICS_H_
18#define SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_SMALL_GLYPH_METRICS_H_
19
20#include "sfntly/port/refcount.h"
21#include "sfntly/table/bitmap/glyph_metrics.h"
22
23namespace sfntly {
24
25class SmallGlyphMetrics : public GlyphMetrics,
26                          public RefCounted<SmallGlyphMetrics> {
27 public:
28  struct Offset {
29    enum {
30      kMetricsLength = 5,
31      kHeight = 0,
32      kWidth = 1,
33      kBearingX = 2,
34      kBearingY = 3,
35      kAdvance = 4,
36    };
37  };
38
39  class Builder : public GlyphMetrics::Builder,
40                  public RefCounted<Builder> {
41   public:
42    // Constructor scope altered to public because C++ does not allow base
43    // class to instantiate derived class with protected constructors.
44    explicit Builder(WritableFontData* data);
45    explicit Builder(ReadableFontData* data);
46    virtual ~Builder();
47
48    int32_t Height();
49    void SetHeight(byte_t height);
50    int32_t Width();
51    void SetWidth(byte_t width);
52    int32_t BearingX();
53    void SetBearingX(byte_t bearing);
54    int32_t BearingY();
55    void SetBearingY(byte_t bearing);
56    int32_t Advance();
57    void SetAdvance(byte_t advance);
58
59    virtual CALLER_ATTACH FontDataTable* SubBuildTable(ReadableFontData* data);
60    virtual void SubDataSet();
61    virtual int32_t SubDataSizeToSerialize();
62    virtual bool SubReadyToSerialize();
63    virtual int32_t SubSerialize(WritableFontData* new_data);
64  };
65
66  explicit SmallGlyphMetrics(ReadableFontData* data);
67  virtual ~SmallGlyphMetrics();
68
69  int32_t Height();
70  int32_t Width();
71  int32_t BearingX();
72  int32_t BearingY();
73  int32_t Advance();
74};
75typedef Ptr<SmallGlyphMetrics> SmallGlyphMetricsPtr;
76
77}  // namespace sfntly
78
79#endif  // SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_SMALL_GLYPH_METRICS_H_
80