c49cabfe5c
git-svn-id: http://skia.googlecode.com/svn/trunk@8168 2bbb7eff-a529-9590-31e7-b0007b416f81
127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkFontMgr_DEFINED
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#define SkFontMgr_DEFINED
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#include "SkRefCnt.h"
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class SkData;
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class SkStream;
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class SkString;
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class SkFontStyle {
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public:
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enum Weight {
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kThin_Weight = 100,
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kExtraLight_Weight = 200,
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kLight_Weight = 300,
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kNormal_Weight = 400,
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kMedium_Weight = 500,
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kSemiBold_Weight = 600,
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kBold_Weight = 700,
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kExtraBold_Weight = 800,
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kBlack_Weight = 900
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};
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enum Width {
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kUltraCondensed_Width = 1,
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kExtraCondensed_Width = 2,
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kCondensed_Width = 3,
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kSemiCondensed_Width = 4,
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kNormal_Width = 5,
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kSemiExpanded_Width = 6,
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kExpanded_Width = 7,
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kExtraExpanded_Width = 8,
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kUltaExpanded_Width = 9
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};
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enum Flags {
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kItalic_Flag = 1 << 0,
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};
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SkFontStyle();
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SkFontStyle(int weight, int width, unsigned flags);
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bool operator==(const SkFontStyle&) const {
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return fUnion.fU32 == other.fUnion.fU32;
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}
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int weight() const { return fUnion.fR.fWeight; }
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int width() const { return fUnion.fR.fWidth; }
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unsigned flags() const { return fUnion.fR.fFlags; }
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bool isItalic() const {
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return SkToBool(fUnion.fR.fFlags & kItalic_Flag);
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}
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private:
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union {
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struct {
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uint16_t fWeight; // 100 ... 900
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uint8_t fWidth; // 1 .. 9
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uint8_t fFlags;
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} fR;
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uint32_t fU32;
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} fUnion;
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};
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class SkFontMgr : public SkRefCnt {
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public:
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/**
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* SkData contains an array of [const char*]
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*/
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SkData* refFamilyNames();
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/**
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* Given a familyName, if a corresponding family is found, return
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* the array of available styles in SkData (as [SkFontStyle]).
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*
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* If foundFamilyName is not null, set it to the actual familyName for the
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* found family.
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*/
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SkData* refFamilyStyles(const char familyName[], SkString* foundFamilyName);
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/**
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* Find the closest matching typeface to the specified familyName and style
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* and return a ref to it. The caller must call unref() on the returned
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* object. Will never return NULL.
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*
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* If foundFamilyName is not null, set it to the actual familyName for the
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* returned typeface.
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*/
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SkTypeface* matchFamilyName(const char familyName[], const Desc&,
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SkString* foundFamilyName);
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/**
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* Create a typeface for the specified data and TTC index (pass 0 for none)
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* or NULL if the data is not recognized. The caller must call unref() on
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* the returned object if it is not null.
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*/
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SkTypeface* createFromData(SkData*, int ttcIndex = 0);
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/**
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* Create a typeface for the specified stream and TTC index
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* (pass 0 for none) or NULL if the stream is not recognized. The caller
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* must call unref() on the returned object if it is not null.
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*/
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SkTypeface* createFromStream(SkStream*, int ttcIndex = 0);
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/**
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* Create a typeface for the specified fileName and TTC index
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* (pass 0 for none) or NULL if the file is not found, or its contents are
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* not recognized. The caller must call unref() on the returned object
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* if it is not null.
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*/
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SkTypeface* createFromFile(const char path[], int ttcIndex = 0);
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private:
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typedef SkRefCnt INHERITED;
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};
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#endif
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