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/*
* Copyright (c) 2021-2022, Matthew Olsson <mattco@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Hex.h>
#include <LibPDF/Document.h>
#include <LibPDF/ObjectDerivatives.h>
namespace PDF {
PDFErrorOr<NonnullRefPtr<Object>> ArrayObject::get_object_at(Document* document, size_t index) const
{
return document->resolve_to<Object>(at(index));
}
PDFErrorOr<NonnullRefPtr<Object>> DictObject::get_object(Document* document, DeprecatedFlyString const& key) const
{
return document->resolve_to<Object>(get_value(key));
}
#define DEFINE_ACCESSORS(class_name, snake_name) \
PDFErrorOr<NonnullRefPtr<class_name>> ArrayObject::get_##snake_name##_at(Document* document, size_t index) const \
{ \
if (index >= m_elements.size()) \
return Error { Error::Type::Internal, "Out of bounds array access" }; \
return document->resolve_to<class_name>(m_elements[index]); \
} \
\
NonnullRefPtr<class_name> ArrayObject::get_##snake_name##_at(size_t index) const \
{ \
VERIFY(index < m_elements.size()); \
return cast_to<class_name>(m_elements[index]); \
} \
\
PDFErrorOr<NonnullRefPtr<class_name>> DictObject::get_##snake_name(Document* document, DeprecatedFlyString const& key) const \
{ \
return document->resolve_to<class_name>(get_value(key)); \
} \
\
NonnullRefPtr<class_name> DictObject::get_##snake_name(DeprecatedFlyString const& key) const \
{ \
return cast_to<class_name>(get_value(key)); \
}
ENUMERATE_OBJECT_TYPES(DEFINE_ACCESSORS)
#undef DEFINE_INDEXER
static void append_indent(StringBuilder& builder, int indent)
{
for (int i = 0; i < indent; i++)
builder.append(" "sv);
}
DeprecatedString StringObject::to_deprecated_string(int) const
{
if (is_binary())
return DeprecatedString::formatted("<{}>", encode_hex(string().bytes()).to_uppercase());
return DeprecatedString::formatted("({})", string());
}
DeprecatedString NameObject::to_deprecated_string(int) const
{
StringBuilder builder;
builder.appendff("/{}", this->name());
return builder.to_deprecated_string();
}
Vector<float> ArrayObject::float_elements() const
{
Vector<float> values;
values.ensure_capacity(m_elements.size());
for (auto const& value : m_elements) {
values.append(value.to_float());
}
return values;
}
DeprecatedString ArrayObject::to_deprecated_string(int indent) const
{
StringBuilder builder;
builder.append("[\n"sv);
bool first = true;
for (auto& element : elements()) {
if (!first)
builder.append(",\n"sv);
first = false;
append_indent(builder, indent + 1);
builder.appendff("{}", element.to_deprecated_string(indent));
}
builder.append('\n');
append_indent(builder, indent);
builder.append(']');
return builder.to_deprecated_string();
}
DeprecatedString DictObject::to_deprecated_string(int indent) const
{
StringBuilder builder;
builder.append("<<\n"sv);
bool first = true;
for (auto& [key, value] : map()) {
if (!first)
builder.append(",\n"sv);
first = false;
append_indent(builder, indent + 1);
builder.appendff("/{} ", key);
builder.appendff("{}", value.to_deprecated_string(indent + 1));
}
builder.append('\n');
append_indent(builder, indent);
builder.append(">>"sv);
return builder.to_deprecated_string();
}
DeprecatedString StreamObject::to_deprecated_string(int indent) const
{
StringBuilder builder;
builder.append("stream\n"sv);
append_indent(builder, indent);
builder.appendff("{}\n", dict()->to_deprecated_string(indent + 1));
append_indent(builder, indent + 1);
auto string = encode_hex(bytes());
while (true) {
if (string.length() > 60) {
builder.appendff("{}\n", string.substring(0, 60));
append_indent(builder, indent);
string = string.substring(60);
continue;
}
builder.appendff("{}\n", string);
break;
}
append_indent(builder, indent);
builder.append("endstream"sv);
return builder.to_deprecated_string();
}
DeprecatedString IndirectValue::to_deprecated_string(int indent) const
{
StringBuilder builder;
builder.appendff("{} {} obj\n", index(), generation_index());
append_indent(builder, indent + 1);
builder.append(value().to_deprecated_string(indent + 1));
builder.append('\n');
append_indent(builder, indent);
builder.append("endobj"sv);
return builder.to_deprecated_string();
}
}
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