aae71baa73
git-svn-id: http://skia.googlecode.com/svn/trunk@8588 2bbb7eff-a529-9590-31e7-b0007b416f81
98 lines
3.2 KiB
C++
98 lines
3.2 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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#include "SkFontStyle.h"
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class SkData;
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class SkStream;
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class SkString;
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class SK_API SkFontStyleSet : public SkRefCnt {
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public:
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virtual int count() = 0;
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virtual void getStyle(int index, SkFontStyle*, SkString* style) = 0;
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virtual SkTypeface* createTypeface(int index) = 0;
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virtual SkTypeface* matchStyle(const SkFontStyle& pattern) = 0;
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static SkFontStyleSet* CreateEmpty();
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};
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class SK_API SkFontMgr : public SkRefCnt {
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public:
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int countFamilies();
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void getFamilyName(int index, SkString* familyName);
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SkFontStyleSet* createStyleSet(int index);
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SkFontStyleSet* matchFamily(const char familyName[]);
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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, as it will return the default font if
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* no matching font is found.
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*/
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SkTypeface* matchFamilyStyle(const char familyName[], const SkFontStyle&);
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SkTypeface* matchFaceStyle(const SkTypeface*, const SkFontStyle&);
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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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/**
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* Return a ref to the default fontmgr. The caller must call unref() on
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* the returned object.
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*/
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static SkFontMgr* RefDefault();
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protected:
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virtual int onCountFamilies() = 0;
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virtual void onGetFamilyName(int index, SkString* familyName) = 0;
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virtual SkFontStyleSet* onCreateStyleSet(int index) = 0;
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virtual SkFontStyleSet* onMatchFamily(const char familyName[]) = 0;
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virtual SkTypeface* onMatchFamilyStyle(const char familyName[],
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const SkFontStyle&) = 0;
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virtual SkTypeface* onMatchFaceStyle(const SkTypeface*,
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const SkFontStyle&) = 0;
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virtual SkTypeface* onCreateFromData(SkData*, int ttcIndex) = 0;
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virtual SkTypeface* onCreateFromStream(SkStream*, int ttcIndex) = 0;
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virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) = 0;
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private:
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static SkFontMgr* Factory(); // implemented by porting layer
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static SkMutex* Mutex(); // implemented by porting layer
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typedef SkRefCnt INHERITED;
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};
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#endif
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