mirror of
https://github.com/LadybirdBrowser/ladybird.git
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133 lines
4.2 KiB
C++
133 lines
4.2 KiB
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 <AK/Hex.h>
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#include <LibPDF/Document.h>
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#include <LibPDF/ObjectDerivatives.h>
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namespace PDF {
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PDFErrorOr<NonnullRefPtr<Object>> DictObject::get_object(Document* document, FlyString const& key) const
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{
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return document->resolve_to<Object>(get_value(key));
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}
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#define DEFINE_ACCESSORS(class_name, snake_name) \
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PDFErrorOr<NonnullRefPtr<class_name>> ArrayObject::get_##snake_name##_at(Document* document, size_t index) const \
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{ \
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if (index >= m_elements.size()) \
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return Error { Error::Type::Internal, "Out of bounds array access" }; \
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return document->resolve_to<class_name>(m_elements[index]); \
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} \
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\
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PDFErrorOr<NonnullRefPtr<class_name>> DictObject::get_##snake_name(Document* document, FlyString const& key) const \
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{ \
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return document->resolve_to<class_name>(get(key).value()); \
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}
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ENUMERATE_OBJECT_TYPES(DEFINE_ACCESSORS)
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#undef DEFINE_INDEXER
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static void append_indent(StringBuilder& builder, int indent)
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{
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for (int i = 0; i < indent; i++)
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builder.append(" ");
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}
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String StringObject::to_string(int) const
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{
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if (is_binary())
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return String::formatted("<{}>", encode_hex(string().bytes()).to_uppercase());
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return String::formatted("({})", string());
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}
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String NameObject::to_string(int) const
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{
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StringBuilder builder;
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builder.appendff("/{}", this->name());
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return builder.to_string();
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}
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String ArrayObject::to_string(int indent) const
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{
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StringBuilder builder;
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builder.append("[\n");
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bool first = true;
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for (auto& element : elements()) {
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if (!first)
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builder.append(",\n");
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first = false;
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append_indent(builder, indent + 1);
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builder.appendff("{}", element.to_string(indent));
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}
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builder.append('\n');
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append_indent(builder, indent);
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builder.append(']');
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return builder.to_string();
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}
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String DictObject::to_string(int indent) const
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{
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StringBuilder builder;
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builder.append("<<\n");
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bool first = true;
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for (auto& [key, value] : map()) {
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if (!first)
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builder.append(",\n");
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first = false;
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append_indent(builder, indent + 1);
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builder.appendff("/{} ", key);
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builder.appendff("{}", value.to_string(indent + 1));
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}
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builder.append('\n');
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append_indent(builder, indent);
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builder.append(">>");
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return builder.to_string();
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}
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String StreamObject::to_string(int indent) const
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{
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StringBuilder builder;
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builder.append("stream\n");
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append_indent(builder, indent);
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builder.appendff("{}\n", dict()->to_string(indent + 1));
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append_indent(builder, indent + 1);
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auto string = encode_hex(bytes());
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while (true) {
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if (string.length() > 60) {
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builder.appendff("{}\n", string.substring(0, 60));
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append_indent(builder, indent);
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string = string.substring(60);
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continue;
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}
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builder.appendff("{}\n", string);
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break;
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}
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append_indent(builder, indent);
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builder.append("endstream");
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return builder.to_string();
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}
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String IndirectValue::to_string(int indent) const
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{
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StringBuilder builder;
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builder.appendff("{} {} obj\n", index(), generation_index());
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append_indent(builder, indent + 1);
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builder.append(value().to_string(indent + 1));
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builder.append('\n');
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append_indent(builder, indent);
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builder.append("endobj");
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return builder.to_string();
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}
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}
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