mirror of
https://github.com/RGBCube/serenity
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32 lines
1,011 B
C++
32 lines
1,011 B
C++
/*
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* Copyright (c) 2021-2022, Matthew Olsson <mattco@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibPDF/Document.h>
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#include <LibPDF/ObjectDerivatives.h>
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#include <LibPDF/Page.h>
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namespace PDF {
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PDFErrorOr<ByteBuffer> Page::page_contents(Document& document) const
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{
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// Table 3.27 Entries in a page object on Contents:
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// "If this entry is absent, the page is empty. [...]"
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if (contents.is_null())
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return ByteBuffer {};
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// "The value may be either a single stream or an array of streams. If the value
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// is an array, the effect is as if all the streams in the array were concatenated,
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// in order, to form a single stream."
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if (contents->is<StreamObject>())
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return TRY(ByteBuffer::copy(contents->cast<StreamObject>()->bytes()));
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ByteBuffer byte_buffer;
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for (auto& ref : *contents->cast<ArrayObject>())
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TRY(byte_buffer.try_append(TRY(document.resolve_to<StreamObject>(ref))->bytes()));
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return byte_buffer;
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}
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}
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