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LibPDF: Parse page crop box and user units

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Matthew Olsson 2021-05-10 10:44:22 -07:00 • committed by Andreas Kling
parent 43724ac282
commit d6a9b41bac
2 changed files with 28 additions and 5 deletions
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20
Userland/Libraries/LibPDF/Document.cpp
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@ -63,6 +63,8 @@ Page Document::get_page(u32 index)
auto raw_page_object = resolve_to<DictObject>(get_or_load_value(page_object_index));
auto resources = raw_page_object->get_dict(this, "Resources");
auto contents = raw_page_object->get_object(this, "Contents");
auto media_box_array = raw_page_object->get_array(this, "MediaBox");
auto media_box = Rectangle {
media_box_array->at(0).to_float(),
@ -70,9 +72,23 @@ Page Document::get_page(u32 index)
media_box_array->at(2).to_float(),
media_box_array->at(3).to_float(),
};
auto contents = raw_page_object->get_object(this, "Contents");
Page page { resources, media_box, contents };
auto crop_box = media_box;
if (raw_page_object->contains("CropBox")) {
auto crop_box_array = raw_page_object->get_array(this, "CropBox");
crop_box = Rectangle {
crop_box_array->at(0).to_float(),
crop_box_array->at(1).to_float(),
crop_box_array->at(2).to_float(),
crop_box_array->at(3).to_float(),
};
}
float user_unit = 1.0f;
if (raw_page_object->contains("UserUnit"))
user_unit = raw_page_object->get_value("UserUnit").to_float();
Page page { move(resources), move(contents), media_box, crop_box, user_unit };
m_pages.set(index, page);
return page;
}