SkFontConfigTypeface.h revision 25272300c308335f2d87c2a70e249965b268bcb0 
1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "SkFontConfigInterface.h"
9#include "SkFontDescriptor.h"
10#include "SkFontHost_FreeType_common.h"
11#include "SkRefCnt.h"
12#include "SkStream.h"
13
14class SkFontDescriptor;
15
16class SkTypeface_FCI : public SkTypeface_FreeType {
17    sk_sp<SkFontConfigInterface> fFCI;
18    SkFontConfigInterface::FontIdentity fIdentity;
19    SkString fFamilyName;
20    std::unique_ptr<SkFontData> fFontData;
21
22public:
23    static SkTypeface_FCI* Create(sk_sp<SkFontConfigInterface> fci,
24                                  const SkFontConfigInterface::FontIdentity& fi,
25                                  SkString familyName,
26                                  const SkFontStyle& style)
27    {
28        return new SkTypeface_FCI(std::move(fci), fi, std::move(familyName), style);
29    }
30
31    static SkTypeface_FCI* Create(std::unique_ptr<SkFontData> data,
32                                  SkString familyName, SkFontStyle style, bool isFixedPitch)
33    {
34        return new SkTypeface_FCI(std::move(data), std::move(familyName), style, isFixedPitch);
35    }
36
37    const SkFontConfigInterface::FontIdentity& getIdentity() const {
38        return fIdentity;
39    }
40
41protected:
42    SkTypeface_FCI(sk_sp<SkFontConfigInterface> fci,
43                   const SkFontConfigInterface::FontIdentity& fi,
44                   SkString familyName,
45                   const SkFontStyle& style)
46            : INHERITED(style, false)
47            , fFCI(std::move(fci))
48            , fIdentity(fi)
49            , fFamilyName(std::move(familyName))
50            , fFontData(nullptr) {}
51
52    SkTypeface_FCI(std::unique_ptr<SkFontData> data,
53                   SkString familyName, SkFontStyle style, bool isFixedPitch)
54            : INHERITED(style, isFixedPitch)
55            , fFamilyName(std::move(familyName))
56            , fFontData(std::move(data))
57    {
58        SkASSERT(fFontData);
59        fIdentity.fTTCIndex = fFontData->getIndex();
60    }
61
62    void onGetFamilyName(SkString* familyName) const override { *familyName = fFamilyName; }
63    void onGetFontDescriptor(SkFontDescriptor*, bool*) const override;
64    SkStreamAsset* onOpenStream(int* ttcIndex) const override;
65    std::unique_ptr<SkFontData> onMakeFontData() const override;
66
67private:
68    typedef SkTypeface_FreeType INHERITED;
69};
70