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start wiring up directory tree during writing

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This commit is contained in:
Thomas Fussell 2017-04-23 20:51:50 -04:00
parent c020d31f58
commit 8f4f24c180
1 changed files with 28 additions and 16 deletions
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44
source/detail/cryptography/compound_document.cpp
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@ -133,6 +133,20 @@ bool header_is_valid(const header &h)
struct directory_entry
{
void name(const std::u16string &new_name)
{
name_length = std::min(static_cast<std::uint16_t>(new_name.size()), std::uint16_t(31));
std::copy(new_name.begin(), new_name.begin() + name_length, name_array.begin());
name_array[name_length] = 0;
name_length = (name_length + 1) * 2;
}
std::u16string name() const
{
return std::u16string(name_array.begin(),
name_array.begin() + (name_length - 1) / 2);
}
enum class entry_type : std::uint8_t
{
Empty = 0,
@ -149,7 +163,7 @@ struct directory_entry
Black = 1
};
std::array<char16_t, 32> name = {{0}};
std::array<char16_t, 32> name_array = {{0}};
std::uint16_t name_length = 0;
entry_type type;
entry_color color;
@ -165,17 +179,7 @@ struct directory_entry
class directory_tree
{
public:
static void entry_name(directory_entry &entry, std::u16string name)
{
if (name.size() > 31)
{
name.resize(31);
}
std::copy(name.begin(), name.end(), entry.name.begin());
entry.name[name.size()] = 0;
entry.name_length = static_cast<std::uint16_t>((name.size() + 1) * 2);
}
static const directory_id End;
directory_tree()
{
@ -226,8 +230,14 @@ public:
entries.push_back(directory_entry());
index = static_cast<directory_id>(entry_count() - 1);
auto &e = entry(index);
e.name(name);
e.type = directory_entry::entry_type::UserStream;
e.size = 0;
e.first = 0;
entry(parent).prev = index;
e.child = End;
e.prev = End;
e.next = entry(parent).child;
entry(parent).child = index;
}
return entry(index);
@ -313,7 +323,7 @@ public:
{
directory_entry root;
entry_name(root, u"Root Entry");
root.name(u"Root Entry");
root.type = directory_entry::entry_type::RootStorage;
root.color = directory_entry::entry_color::Black;
root.size = 0;
@ -399,7 +409,7 @@ private:
// start from root
auto index = directory_id(0);
for (auto it = names.begin(); it != names.end(); ++it)
for (auto &name : names)
{
// find among the children of index
auto chi = children(index);
@ -409,7 +419,7 @@ private:
{
auto ce = entry(chi[i]);
if (std::u16string(ce.name.data()) == *it)
if (ce.name() == name)
{
child = static_cast<std::ptrdiff_t>(chi[i]);
}
@ -432,6 +442,8 @@ private:
std::vector<directory_entry> entries;
};
const directory_id directory_tree::End = -1;
} // namespace
namespace xlnt {