mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
|
|
/*
|
|
* Copyright 2010 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
|
|
#ifndef SkPDFStream_DEFINED
|
|
#define SkPDFStream_DEFINED
|
|
|
|
#include "SkPDFTypes.h"
|
|
#include "SkRefCnt.h"
|
|
#include "SkStream.h"
|
|
#include "SkTemplates.h"
|
|
|
|
class SkPDFCatalog;
|
|
|
|
/** \class SkPDFStream
|
|
|
|
A stream object in a PDF. Note, all streams must be indirect objects (via
|
|
SkObjRef).
|
|
*/
|
|
class SkPDFStream : public SkPDFDict {
|
|
public:
|
|
/** Create a PDF stream. A Length entry is automatically added to the
|
|
* stream dictionary. The stream may be retained (stream->ref() may be
|
|
* called) so its contents must not be changed after calling this.
|
|
* @param data The data part of the stream.
|
|
*/
|
|
explicit SkPDFStream(SkData* data);
|
|
/** Deprecated constructor. */
|
|
explicit SkPDFStream(SkStream* stream);
|
|
/** Create a PDF stream with the same content and dictionary entries
|
|
* as the passed one.
|
|
*/
|
|
explicit SkPDFStream(const SkPDFStream& pdfStream);
|
|
virtual ~SkPDFStream();
|
|
|
|
// The SkPDFObject interface.
|
|
virtual void emitObject(SkWStream* stream, SkPDFCatalog* catalog,
|
|
bool indirect);
|
|
virtual size_t getOutputSize(SkPDFCatalog* catalog, bool indirect);
|
|
|
|
protected:
|
|
/* Create a PDF stream with no data. The setData method must be called to
|
|
* set the data.
|
|
*/
|
|
SkPDFStream();
|
|
|
|
void setData(SkStream* stream);
|
|
|
|
private:
|
|
enum State {
|
|
kUnused_State, //!< The stream hasn't been requested yet.
|
|
kNoCompression_State, //!< The stream's been requested in an
|
|
// uncompressed form.
|
|
kCompressed_State, //!< The stream's already been compressed.
|
|
};
|
|
// Indicates what form (or if) the stream has been requested.
|
|
State fState;
|
|
|
|
// TODO(vandebo): Use SkData (after removing deprecated constructor).
|
|
SkRefPtr<SkStream> fData;
|
|
SkRefPtr<SkPDFStream> fSubstitute;
|
|
|
|
typedef SkPDFDict INHERITED;
|
|
|
|
// Populate the stream dictionary. This method returns false if
|
|
// fSubstitute should be used.
|
|
bool populate(SkPDFCatalog* catalog);
|
|
};
|
|
|
|
#endif
|