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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkFontMgr_DEFINED
#define SkFontMgr_DEFINED
#include "SkRefCnt.h"
class SkData;
class SkStream;
class SkString;
class SkFontStyle {
public:
enum Weight {
kThin_Weight = 100,
kExtraLight_Weight = 200,
kLight_Weight = 300,
kNormal_Weight = 400,
kMedium_Weight = 500,
kSemiBold_Weight = 600,
kBold_Weight = 700,
kExtraBold_Weight = 800,
kBlack_Weight = 900
};
enum Width {
kUltraCondensed_Width = 1,
kExtraCondensed_Width = 2,
kCondensed_Width = 3,
kSemiCondensed_Width = 4,
kNormal_Width = 5,
kSemiExpanded_Width = 6,
kExpanded_Width = 7,
kExtraExpanded_Width = 8,
kUltaExpanded_Width = 9
};
enum Flags {
kItalic_Flag = 1 << 0,
};
SkFontStyle();
SkFontStyle(int weight, int width, unsigned flags);
bool operator==(const SkFontStyle&) const {
return fUnion.fU32 == other.fUnion.fU32;
}
int weight() const { return fUnion.fR.fWeight; }
int width() const { return fUnion.fR.fWidth; }
unsigned flags() const { return fUnion.fR.fFlags; }
bool isItalic() const {
return SkToBool(fUnion.fR.fFlags & kItalic_Flag);
}
private:
union {
struct {
uint16_t fWeight; // 100 ... 900
uint8_t fWidth; // 1 .. 9
uint8_t fFlags;
} fR;
uint32_t fU32;
} fUnion;
};
class SkFontMgr : public SkRefCnt {
public:
/**
* SkData contains an array of [const char*]
*/
SkData* refFamilyNames();
/**
* Given a familyName, if a corresponding family is found, return
* the array of available styles in SkData (as [SkFontStyle]).
*
* If foundFamilyName is not null, set it to the actual familyName for the
* found family.
*/
SkData* refFamilyStyles(const char familyName[], SkString* foundFamilyName);
/**
* Find the closest matching typeface to the specified familyName and style
* and return a ref to it. The caller must call unref() on the returned
* object. Will never return NULL.
*
* If foundFamilyName is not null, set it to the actual familyName for the
* returned typeface.
*/
SkTypeface* matchFamilyName(const char familyName[], const Desc&,
SkString* foundFamilyName);
/**
* Create a typeface for the specified data and TTC index (pass 0 for none)
* or NULL if the data is not recognized. The caller must call unref() on
* the returned object if it is not null.
*/
SkTypeface* createFromData(SkData*, int ttcIndex = 0);
/**
* Create a typeface for the specified stream and TTC index
* (pass 0 for none) or NULL if the stream is not recognized. The caller
* must call unref() on the returned object if it is not null.
*/
SkTypeface* createFromStream(SkStream*, int ttcIndex = 0);
/**
* Create a typeface for the specified fileName and TTC index
* (pass 0 for none) or NULL if the file is not found, or its contents are
* not recognized. The caller must call unref() on the returned object
* if it is not null.
*/
SkTypeface* createFromFile(const char path[], int ttcIndex = 0);
private:
typedef SkRefCnt INHERITED;
};
#endif
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