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 /*

  * 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 SkPDFFormXObject_DEFINED

 #define SkPDFFormXObject_DEFINED

 #include "SkPDFStream.h"

 #include "SkPDFTypes.h"

 #include "SkRect.h"

 #include "SkRefCnt.h"

 #include "SkPDFResourceDict.h"

 #include "SkString.h"

 class SkMatrix;

 class SkPDFDevice;

 class SkPDFCatalog;

 /** \class SkPDFFormXObject

     A form XObject; a self contained description of graphics objects.  A form

     XObject is basically a page object with slightly different syntax, that

     can be drawn onto a page.

 */

 // The caller could keep track of the form XObjects it creates and

 // canonicalize them, but the Skia API doesn't provide enough context to

 // automatically do it (trivially).

 class SkPDFFormXObject : public SkPDFStream {

 public:

     /** Create a PDF form XObject. Entries for the dictionary entries are

      *  automatically added.

      *  @param device      The set of graphical elements on this form.

      */

     explicit SkPDFFormXObject(SkPDFDevice* device);

     /**

      * Create a PDF form XObject from a raw content stream and associated

      * resources.

      */

     explicit SkPDFFormXObject(SkStream* content,

                               SkRect bbox,

                               SkPDFResourceDict* resourceDict);

     virtual ~SkPDFFormXObject();

     // The SkPDFObject interface.

     virtual void getResources(const SkTSet<SkPDFObject*>& knownResourceObjects,

                               SkTSet<SkPDFObject*>* newResourceObjects);

 private:

     void init(const char* colorSpace,

               SkPDFDict* resourceDict, SkPDFArray* bbox);

     SkTSet<SkPDFObject*> fResources;

 };

 #endif