gotocelldialog.cpp

qt4下做的程序启动画面

#include <QtGui>

#include "gotocelldialog.h"

GoToCellDialog::GoToCellDialog(QWidget *parent)
    : QDialog(parent)
{
    setupUi(this);
    buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);

    QRegExp regExp("[A-Za-z][1-9][0-9]{0,2}");
    lineEdit->setValidator(new QRegExpValidator(regExp, this));

    connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
    connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
}

void GoToCellDialog::on_lineEdit_textChanged()
{
    buttonBox->button(QDialogButtonBox::Ok)->setEnabled(
            lineEdit->hasAcceptableInput());
}