expose instance methods on SkTypefaceCache

src/core/SkTypefaceCache.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
 #ifndef SkTypefaceCache_DEFINED
 #define SkTypefaceCache_DEFINED
 
 #include "SkTypeface.h"
 #include "SkTDArray.h"
 
 /*  TODO
  *  Provide std way to cache name+requestedStyle aliases to the same typeface.
  *
  *  The current mechanism ends up create a diff typeface for each one, even if
  *  they map to the same internal obj (e.g. CTFontRef on the mac)
  */
 
 class SkTypefaceCache {
 public:
+    SkTypefaceCache();
+    ~SkTypefaceCache();
+
     /**
      * Callback for FindByProc. Returns true if the given typeface is a match
      * for the given context. The passed typeface is owned by the cache and is
      * not additionally ref()ed. The typeface may be in the disposed state.
      */
     typedef bool (*FindProc)(SkTypeface*, SkTypeface::Style, void* context);
 
     /**
-     *  Helper: returns a unique fontID to pass to the constructor of
-     *  your subclass of SkTypeface
-     */
-    static SkFontID NewFontID();
-
-    /**
      *  Add a typeface to the cache. This ref()s the typeface, so that the
      *  cache is also an owner. Later, if we need to purge the cache, typefaces
      *  whose refcnt is 1 (meaning only the cache is an owner) will be
      *  unref()ed.
      */
-    static void Add(SkTypeface*,
-                    SkTypeface::Style requested,
-                    bool strong = true);
+    void add(SkTypeface*, SkTypeface::Style requested, bool strong = true);
 
     /**
      *  Search the cache for a typeface with the specified fontID (uniqueID).
      *  If one is found, return it (its reference count is unmodified). If none
      *  is found, return NULL. The reference count is unmodified as it is
      *  assumed that the stack will contain a ref to the typeface.
      */
-    static SkTypeface* FindByID(SkFontID fontID);
+    SkTypeface* findByID(SkFontID findID) const;
 
     /**
      *  Iterate through the cache, calling proc(typeface, ctx) with each
      *  typeface. If proc returns true, then we return that typeface (this
      *  ref()s the typeface). If it never returns true, we return NULL.
      */
-    static SkTypeface* FindByProcAndRef(FindProc proc, void* ctx);
+    SkTypeface* findByProcAndRef(FindProc proc, void* ctx) const;
 
     /**
      *  This will unref all of the typefaces in the cache for which the cache
      *  is the only owner. Normally this is handled automatically as needed.
      *  This function is exposed for clients that explicitly want to purge the
      *  cache (e.g. to look for leaks).
      */
+    void purgeAll();
+
+    /**
+     *  Helper: returns a unique fontID to pass to the constructor of
+     *  your subclass of SkTypeface
+     */
+    static SkFontID NewFontID();
+
+    // These are static wrappers around a global instance of a cache.
+
+    static void Add(SkTypeface*,
+                    SkTypeface::Style requested,
+                    bool strong = true);
+    static SkTypeface* FindByID(SkFontID fontID);
+    static SkTypeface* FindByProcAndRef(FindProc proc, void* ctx);
     static void PurgeAll();
 
     /**
      *  Debugging only: dumps the status of the typefaces in the cache
      */
     static void Dump();
 
 private:
     static SkTypefaceCache& Get();
 
-    void add(SkTypeface*, SkTypeface::Style requested, bool strong = true);
-    SkTypeface* findByID(SkFontID findID) const;
-    SkTypeface* findByProcAndRef(FindProc proc, void* ctx) const;
     void purge(int count);
-    void purgeAll();
 
     struct Rec {
         SkTypeface*         fFace;
         bool                fStrong;
         SkTypeface::Style   fRequestedStyle;
     };
     SkTDArray<Rec> fArray;
 };
 
 #endif