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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SkPDFDocument_DEFINED
#define SkPDFDocument_DEFINED
#include "SkPDFCatalog.h"
#include "SkPDFTypes.h"
#include "SkRefCnt.h"
#include "SkTDArray.h"
class SkPDFDevice;
class SkPDFPage;
class SkWSteam;
/** \class SkPDFDocument
A SkPDFDocument assembles pages together and generates the final PDF file.
*/
class SkPDFDocument {
public:
/** Create a PDF document.
*/
SkPDFDocument();
~SkPDFDocument();
/** Output the PDF to the passed stream.
* @param stream The writable output stream to send the PDF to.
*/
bool emitPDF(SkWStream* stream);
/** Append the passed pdf device to the document as a new page. Returns
* true if successful. Will fail if the document has already been emitted.
*
* @param pdfDevice The page to add to this document.
*/
bool appendPage(const SkRefPtr<SkPDFDevice>& pdfDevice);
private:
SkPDFCatalog fCatalog;
int64_t fXRefFileOffset;
SkTDArray<SkPDFPage*> fPages;
SkTDArray<SkPDFDict*> fPageTree;
SkRefPtr<SkPDFDict> fDocCatalog;
SkTDArray<SkPDFObject*> fPageResources;
int fSecondPageFirstResourceIndex;
SkRefPtr<SkPDFDict> fTrailerDict;
/** Output the PDF header to the passed stream.
* @param stream The writable output stream to send the header to.
*/
void emitHeader(SkWStream* stream);
/** Get the size of the header.
*/
size_t headerSize();
/** Output the PDF footer to the passed stream.
* @param stream The writable output stream to send the footer to.
* @param objCount The number of objects in the PDF.
*/
void emitFooter(SkWStream* stream, int64_t objCount);
};
#endif
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