SkPDF: Factor SkPDFCatalog into SkPDFObjNumMap and SkPDFSubstituteMap

src/pdf/SkPDFCatalog.h

-
-/*
- * Copyright 2010 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#ifndef SkPDFCatalog_DEFINED
-#define SkPDFCatalog_DEFINED
-
-#include "SkPDFTypes.h"
-#include "SkTDArray.h"
-#include "SkTHash.h"
-
-/** \class SkPDFCatalog
-
-    The PDF catalog manages object numbers.  It is used
-    to create the PDF cross reference table.
-*/
-class SkPDFCatalog {
-public:
-    SkPDFCatalog();
-    ~SkPDFCatalog();
-
-    /** Add the passed object to the catalog.
-     *  @param obj         The object to add.
-     *  @return True iff the object was not already added to the catalog.
-     */
-    bool addObject(SkPDFObject* obj);
-
-    /** Get the object number for the passed object.
-     *  @param obj         The object of interest.
-     */
-    int32_t getObjectNumber(SkPDFObject* obj) const;
-
-    /** Set substitute object for the passed object.
-        Refs substitute.
-     */
-    void setSubstitute(SkPDFObject* original, SkPDFObject* substitute);
-
-    /** Find and return any substitute object set for the passed object. If
-     *  there is none, return the passed object.
-     */
-    SkPDFObject* getSubstituteObject(SkPDFObject* object) const;
-
-    const SkTDArray<SkPDFObject*>& objects() const { return fObjects; }
-
-private:
-    SkTDArray<SkPDFObject*> fObjects;
-    SkTHashMap<SkPDFObject*, int32_t> fObjectNumbers;
-    SkTHashMap<SkPDFObject*, SkPDFObject*> fSubstituteMap;
-};
-
-#endif