#ifndef SORTVIEW_H 
#define SORTVIEW_H 
 
#include <QtGui> 
 
class SortView : public QWidget 
{ 
        Q_OBJECT 
public: 
        SortView(); 
 
private: 
        QListView *view; 
        QStringListModel *model; 
        QSortFilterProxyModel *modelProxy; 
        QComboBox *syntaxBox; 
 
private slots: 
        void filterChanged(QString text); 
}; 
 
#endif // SORTVIEW_H

#include "sortview.h" 
 
SortView::SortView() 
{ 
        model = new QStringListModel(QColor::colorNames(), this); 
 
        modelProxy = new QSortFilterProxyModel(this); 
        modelProxy->setSourceModel(model); 
        modelProxy->setFilterKeyColumn(0); 
 
        view = new QListView(this); 
        view->setModel(modelProxy); 
 
        QLineEdit *filterInput = new QLineEdit; 
        QLabel *filterLabel = new QLabel(tr("Filter")); 
        QHBoxLayout *filterLayout = new QHBoxLayout; 
        filterLayout->addWidget(filterLabel); 
        filterLayout->addWidget(filterInput); 
 
        syntaxBox = new QComboBox; 
        syntaxBox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred); 
        syntaxBox->addItem(tr("Regular expression"), QRegExp::RegExp); 
        syntaxBox->addItem(tr("Wildcard"), QRegExp::Wildcard); 
        syntaxBox->addItem(tr("Fixed string"), QRegExp::FixedString); 
        QLabel *syntaxLabel = new QLabel(tr("Syntax")); 
        QHBoxLayout *syntaxLayout = new QHBoxLayout; 
        syntaxLayout->addWidget(syntaxLabel); 
        syntaxLayout->addWidget(syntaxBox); 
 
        QVBoxLayout *layout = new QVBoxLayout(this); 
        layout->addWidget(view); 
        layout->addLayout(filterLayout); 
        layout->addLayout(syntaxLayout); 
 
        connect(filterInput, SIGNAL(textChanged(QString)), this, SLOT(filterChanged(QString))); 
} 
 
void SortView::filterChanged(QString text) 
{ 
        QRegExp::PatternSyntax syntax = QRegExp::PatternSyntax( 
                        syntaxBox->itemData(syntaxBox->currentIndex()).toInt()); 
        QRegExp regExp(text, Qt::CaseInsensitive, syntax); 
        modelProxy->setFilterRegExp(regExp); 
}

syntaxBox->addItem(tr("Regular expression"), QRegExp::RegExp); 
syntaxBox->addItem(tr("Wildcard"), QRegExp::Wildcard); 
syntaxBox->addItem(tr("Fixed string"), QRegExp::FixedString);

void SortView::filterChanged(QString text) 
{ 
        QRegExp::PatternSyntax syntax = QRegExp::PatternSyntax( 
                        syntaxBox->itemData(syntaxBox->currentIndex()).toInt()); 
        QRegExp regExp(text, Qt::CaseInsensitive, syntax); 
        modelProxy->setFilterRegExp(regExp); 
}

本文转自 FinderCheng 51CTO博客，原文链接:

http://blog.51cto.com/devbean/266500