QlistView보기를 표시하면서 QlineEdit에 중점을 둡니다

Question

QT에는 a가 있습니다 QCompleter 자동 완성 기능을 제공하는 클래스. 사용하고 싶습니다 QListView 같은 것을 끝내기 위해. 다음 코드에서 QListView 쇼, QLineEdit 집중력을 잃을 것입니다. 어떻게 유지할 수 있습니까? QLineEdit초점?

1) mdict.h:

#include <QtGui/QWidget>

class QLineEdit;
class QListView;
class QModelIndex;

class mdict : public QWidget
{
    Q_OBJECT

public:
    mdict(QWidget *parent = 0);
    ~mdict() {}

private slots:
    void on_textChanged(const QString &);
    void completeText(const QModelIndex &);

private:
    QLineEdit *mLineEdit;
    QListView *mView;
};

2) mdict.cpp

#include <cassert>
#include <QtGui>
#include "mdict.h"

mdict::mdict(QWidget *parent) : QWidget(parent), mLineEdit(0), mView(0)
{
    mLineEdit = new QLineEdit(this);

    QVBoxLayout *layout = new QVBoxLayout(this);
    layout->addWidget(mLineEdit);
    layout->addStretch(100);
    setLayout(layout);

    QStringList stringList;
    stringList << "m0" << "m1" << "m2";
    QStringListModel *model = new QStringListModel(stringList);
    mView = new QListView(this);
    mView->setModel(model);
    mView->setEditTriggers(QAbstractItemView::NoEditTriggers);
    mView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
    mView->setSelectionBehavior(QAbstractItemView::SelectRows);
    mView->setSelectionMode(QAbstractItemView::SingleSelection);
    mView->setParent(0, Qt::Popup);
    mView->setFocusPolicy(Qt::NoFocus);
    mView->setFocusProxy(mLineEdit);

    connect(mLineEdit, SIGNAL(textChanged(const QString&)), 
        this, SLOT(on_textChanged(const QString &)));
    connect(mView, SIGNAL(activated(const QModelIndex &)),
        this, SLOT(completeText(const QModelIndex &)));
    connect(mView, SIGNAL(clicked(const QModelIndex &)),
        this, SLOT(completeText(const QModelIndex &)));
}

void mdict::on_textChanged(const QString &text)
{
    int lineEidtWidth = mLineEdit->width();
    mView->setMinimumWidth(lineEidtWidth);
    mView->setMaximumWidth(lineEidtWidth);
    mView->setMaximumHeight(60);

    QPoint p(0, mLineEdit->height());
    int x = mLineEdit->mapToGlobal(p).x();
    int y = mLineEdit->mapToGlobal(p).y();
    mView->move(x, y);
    mView->show();
}

void mdict::completeText(const QModelIndex &index)
{
    mLineEdit->setText(index.data().toString());
    mView->hide();
}

3) main.cpp

#include "mdict.h"

#include <QtGui>
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    mdict w;
    w.show();
    return a.exec();
}

Answer 1

사용 Qt::ToolTip 대신에 Qt::Popup, 이런 식으로:

mView->setParent(0, Qt::ToolTip);