mysortfilterproxymodel.cpp Example File
itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp
#include <QtGui>
#include "mysortfilterproxymodel.h"
MySortFilterProxyModel::MySortFilterProxyModel(QObject *parent)
: QSortFilterProxyModel(parent)
{
}
void MySortFilterProxyModel::setFilterMinimumDate(const QDate &date)
{
minDate = date;
invalidateFilter();
}
void MySortFilterProxyModel::setFilterMaximumDate(const QDate &date)
{
maxDate = date;
invalidateFilter();
}
bool MySortFilterProxyModel::filterAcceptsRow(int sourceRow,
const QModelIndex &sourceParent) const
{
QModelIndex index0 = sourceModel()->index(sourceRow, 0, sourceParent);
QModelIndex index1 = sourceModel()->index(sourceRow, 1, sourceParent);
QModelIndex index2 = sourceModel()->index(sourceRow, 2, sourceParent);
return (sourceModel()->data(index0).toString().contains(filterRegExp())
|| sourceModel()->data(index1).toString().contains(filterRegExp()))
&& dateInRange(sourceModel()->data(index2).toDate());
}
bool MySortFilterProxyModel::lessThan(const QModelIndex &left,
const QModelIndex &right) const
{
QVariant leftData = sourceModel()->data(left);
QVariant rightData = sourceModel()->data(right);
if (leftData.type() == QVariant::DateTime) {
return leftData.toDateTime() < rightData.toDateTime();
} else {
QRegExp *emailPattern = new QRegExp("([\\w\\.]*@[\\w\\.]*)");
QString leftString = leftData.toString();
if(left.column() == 1 && emailPattern->indexIn(leftString) != -1)
leftString = emailPattern->cap(1);
QString rightString = rightData.toString();
if(right.column() == 1 && emailPattern->indexIn(rightString) != -1)
rightString = emailPattern->cap(1);
return QString::localeAwareCompare(leftString, rightString) < 0;
}
}
bool MySortFilterProxyModel::dateInRange(const QDate &date) const
{
return (!minDate.isValid() || date > minDate)
&& (!maxDate.isValid() || date < maxDate);
}
Copyright © 2008 Nokia Corporation and/or its subsidiary(-ies) |
Trademarks |
Qt 4.4.3 |