qt_demoe/lineeditnext/widget.cpp

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2019-10-28 05:50:59 +00:00
#include "widget.h"
#include "ui_widget.h"
#include "qlineedit.h"
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
connect(ui->lineEdit1, SIGNAL(returnPressed()), this, SLOT(next()));
connect(ui->lineEdit2, SIGNAL(returnPressed()), this, SLOT(next()));
connect(ui->lineEdit3, SIGNAL(returnPressed()), this, SLOT(next()));
}
Widget::~Widget()
{
delete ui;
}
void Widget::next()
{
QLineEdit *lineEdit = (QLineEdit *)sender();
if (lineEdit == ui->lineEdit1) {
ui->lineEdit2->setFocus();
} else if (lineEdit == ui->lineEdit2) {
ui->lineEdit3->setFocus();
} else if (lineEdit == ui->lineEdit3) {
ui->lineEdit1->setFocus();
}
}