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78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
// Copyright (c) 2005-2015 Jay Berkenbilt
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//
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// This file is part of qpdf. This software may be distributed under
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// the terms of version 2 of the Artistic License which may be found
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// in the source distribution. It is provided "as is" without express
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// or implied warranty.
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#ifndef __QPDFOBJECT_HH__
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#define __QPDFOBJECT_HH__
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#include <qpdf/DLL.h>
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#include <string>
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class QPDF;
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class QPDFObjectHandle;
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class QPDFObject
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{
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public:
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// Objects derived from QPDFObject are accessible through
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// QPDFObjectHandle. Each object returns a unique type code that
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// has one of the values in the list below. As new object types
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// are added to qpdf, additional items may be added to the list,
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// so code that switches on these values should take that into
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// consideration.
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enum object_type_e {
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// Object types internal to qpdf
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ot_uninitialized,
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ot_reserved,
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// Object types that can occur in the main document
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ot_null,
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ot_boolean,
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ot_integer,
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ot_real,
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ot_string,
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ot_name,
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ot_array,
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ot_dictionary,
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ot_stream,
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// Additional object types that can occur in content streams
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ot_operator,
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ot_inlineimage,
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};
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virtual ~QPDFObject() {}
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virtual std::string unparse() = 0;
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// Return a unique type code for the object
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virtual object_type_e getTypeCode() const = 0;
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// Return a string literal that describes the type, useful for
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// debugging and testing
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virtual char const* getTypeName() const = 0;
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// Accessor to give specific access to non-public methods
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class ObjAccessor
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{
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friend class QPDF;
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friend class QPDFObjectHandle;
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private:
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static void releaseResolved(QPDFObject* o)
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{
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if (o)
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{
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o->releaseResolved();
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}
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}
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};
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friend class ObjAccessor;
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protected:
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virtual void releaseResolved() {}
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};
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#endif // __QPDFOBJECT_HH__
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