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Proper sorting of columns with enum values

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This commit is contained in:
Stanislav Bas 2015-07-23 20:35:16 +03:00
parent 3c3bd7976e
commit a7b3248ee7
2 changed files with 21 additions and 0 deletions
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14
apps/opencs/model/world/idtableproxymodel.cpp
View file

@ -60,6 +60,20 @@ void CSMWorld::IdTableProxyModel::setFilter (const boost::shared_ptr<CSMFilter::
bool CSMWorld::IdTableProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
{
Columns::ColumnId id = static_cast<Columns::ColumnId>(left.data(ColumnBase::Role_ColumnId).toInt());
EnumColumnCache::const_iterator valuesIt = mEnumColumnCache.find(id);
if (valuesIt == mEnumColumnCache.end())
{
if (Columns::hasEnums(id))
{
valuesIt = mEnumColumnCache.insert(std::make_pair(id, Columns::getEnums(id))).first;
}
}
if (valuesIt != mEnumColumnCache.end())
{
return valuesIt->second[left.data().toInt()] < valuesIt->second[right.data().toInt()];
}
return QSortFilterProxyModel::lessThan(left, right);
}

7
apps/opencs/model/world/idtableproxymodel.hpp
View file

@ -11,6 +11,8 @@
#include "../filter/node.hpp"
#include "columns.hpp"
namespace CSMWorld
{
class IdTableProxyModel : public QSortFilterProxyModel
@ -20,6 +22,11 @@ namespace CSMWorld
boost::shared_ptr<CSMFilter::Node> mFilter;
std::map<int, int> mColumnMap; // column ID, column index in this model (or -1)
// Cache of enum values for enum columns (e.g. Modified, Record Type).
// Used to speed up comparisons during the sort by such columns.
typedef std::map<Columns::ColumnId, std::vector<std::string> > EnumColumnCache;
mutable EnumColumnCache mEnumColumnCache;
private:
void updateColumnMap();