1 /*
2  * Copyright 2012 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 #ifndef SkFontDescriptor_DEFINED
9 #define SkFontDescriptor_DEFINED
10 
11 #include "SkStream.h"
12 #include "SkString.h"
13 #include "SkTypeface.h"
14 
15 class SkFontData {
16 public:
17     /** This takes ownership of 'stream'. Makes a copy of the data in 'axis'. */
SkFontData(SkStreamAsset * stream,int index,const SkFixed axis[],int axisCount)18     SkFontData(SkStreamAsset* stream, int index, const SkFixed axis[], int axisCount)
19         : fStream(stream), fIndex(index), fAxisCount(axisCount), fAxis(axisCount)
20     {
21         for (int i = 0; i < axisCount; ++i) {
22             fAxis[i] = axis[i];
23         }
24     }
SkFontData(const SkFontData & that)25     SkFontData(const SkFontData& that)
26         : fStream(that.fStream->duplicate())
27         , fIndex(that.fIndex)
28         , fAxisCount(that.fAxisCount)
29         , fAxis(fAxisCount)
30     {
31         for (int i = 0; i < fAxisCount; ++i) {
32             fAxis[i] = that.fAxis[i];
33         }
34     }
hasStream()35     bool hasStream() const { return fStream.get() != nullptr; }
duplicateStream()36     SkStreamAsset* duplicateStream() const { return fStream->duplicate(); }
detachStream()37     SkStreamAsset* detachStream() { return fStream.detach(); }
getStream()38     SkStreamAsset* getStream() { return fStream.get(); }
getIndex()39     int getIndex() const { return fIndex; }
getAxisCount()40     int getAxisCount() const { return fAxisCount; }
getAxis()41     const SkFixed* getAxis() const { return fAxis.get(); }
42 
43 private:
44     SkAutoTDelete<SkStreamAsset> fStream;
45     int fIndex;
46     int fAxisCount;
47     SkAutoSTMalloc<4, SkFixed> fAxis;
48 };
49 
50 class SkFontDescriptor : SkNoncopyable {
51 public:
52     SkFontDescriptor(SkTypeface::Style = SkTypeface::kNormal);
53     // Does not affect ownership of SkStream.
54     static bool Deserialize(SkStream*, SkFontDescriptor* result);
55 
56     void serialize(SkWStream*);
57 
getStyle()58     SkTypeface::Style getStyle() { return fStyle; }
setStyle(SkTypeface::Style style)59     void setStyle(SkTypeface::Style style) { fStyle = style; }
60 
getFamilyName()61     const char* getFamilyName() const { return fFamilyName.c_str(); }
getFullName()62     const char* getFullName() const { return fFullName.c_str(); }
getPostscriptName()63     const char* getPostscriptName() const { return fPostscriptName.c_str(); }
hasFontData()64     bool hasFontData() const { return fFontData.get() != nullptr; }
detachFontData()65     SkFontData* detachFontData() { return fFontData.detach(); }
66 
setFamilyName(const char * name)67     void setFamilyName(const char* name) { fFamilyName.set(name); }
setFullName(const char * name)68     void setFullName(const char* name) { fFullName.set(name); }
setPostscriptName(const char * name)69     void setPostscriptName(const char* name) { fPostscriptName.set(name); }
70     /** Set the font data only if it is necessary for serialization.
71      *  This method takes ownership of the font data. */
setFontData(SkFontData * data)72     void setFontData(SkFontData* data) { fFontData.reset(data); }
73 
74 private:
75     SkString fFamilyName;
76     SkString fFullName;
77     SkString fPostscriptName;
78     SkAutoTDelete<SkFontData> fFontData;
79 
80     SkTypeface::Style fStyle;
81 };
82 
83 #endif // SkFontDescriptor_DEFINED
84