74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
#include "multisortfilterproxy.h"
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#include "core/logging.h"
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#include <QDate>
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#include <QDateTime>
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#include <QTime>
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MultiSortFilterProxy::MultiSortFilterProxy(QObject* parent)
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: QSortFilterProxyModel(parent) {}
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void MultiSortFilterProxy::AddSortSpec(int role, Qt::SortOrder order) {
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sorting_ << SortSpec(role, order);
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}
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bool MultiSortFilterProxy::lessThan(const QModelIndex& left,
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const QModelIndex& right) const {
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foreach(const SortSpec & spec, sorting_) {
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const int ret = Compare(left.data(spec.first), right.data(spec.first));
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if (ret < 0) {
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return spec.second == Qt::AscendingOrder;
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} else if (ret > 0) {
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return spec.second != Qt::AscendingOrder;
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}
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}
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return left.row() < right.row();
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}
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template <typename T>
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static inline int DoCompare(T left, T right) {
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if (left < right) return -1;
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if (left > right) return 1;
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return 0;
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}
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int MultiSortFilterProxy::Compare(const QVariant& left,
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const QVariant& right) const {
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// Copied from the QSortFilterProxyModel::lessThan implementation, but returns
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// -1, 0 or 1 instead of true or false.
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switch (left.userType()) {
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case QVariant::Invalid:
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return (right.type() != QVariant::Invalid) ? -1 : 0;
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case QVariant::Int:
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return DoCompare(left.toInt(), right.toInt());
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case QVariant::UInt:
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return DoCompare(left.toUInt(), right.toUInt());
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case QVariant::LongLong:
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return DoCompare(left.toLongLong(), right.toLongLong());
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case QVariant::ULongLong:
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return DoCompare(left.toULongLong(), right.toULongLong());
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case QMetaType::Float:
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return DoCompare(left.toFloat(), right.toFloat());
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case QVariant::Double:
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return DoCompare(left.toDouble(), right.toDouble());
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case QVariant::Char:
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return DoCompare(left.toChar(), right.toChar());
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case QVariant::Date:
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return DoCompare(left.toDate(), right.toDate());
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case QVariant::Time:
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return DoCompare(left.toTime(), right.toTime());
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case QVariant::DateTime:
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return DoCompare(left.toDateTime(), right.toDateTime());
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case QVariant::String:
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default:
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if (isSortLocaleAware())
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return left.toString().localeAwareCompare(right.toString());
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else
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return left.toString().compare(right.toString(), sortCaseSensitivity());
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}
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return 0;
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}
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