Qt常用的按钮控件编程（六）- QDialogButtonBox 按钮

#include "dialog.h" Dialog::Dialog(QWidget *parent) : QDialog(parent) { setWindowTitle(QString::fromLocal8Bit("设置网络参数对话框")); setFixedSize(280, 180); m_ipButton = new QPushButton(tr("IP"), this); m_ipButton->setFixedSize(80, 30); m_ipButton->move(30, 30); m_ipLineEdit = new QLineEdit(this); m_ipLineEdit->setReadOnly(true); m_ipLineEdit->setAlignment(Qt::AlignHCenter); m_ipLineEdit->setFixedSize(140, 30); m_ipLineEdit->move(130, 30); connect(m_ipButton, SIGNAL(clicked()), this, SLOT(slotEnterIPAddress())); m_portButton = new QPushButton(tr("Port"), this); m_portButton->setFixedSize(80, 30); m_portButton->move(30, 70); connect(m_portButton, SIGNAL(clicked()), this, SLOT(slotEnterPort())); m_portLineEdit = new QLineEdit(this); m_portLineEdit->setReadOnly(true); m_portLineEdit->setAlignment(Qt::AlignHCenter); m_portLineEdit->setFixedSize(140, 30); m_portLineEdit->move(130, 70); #ifdef QT_ARM_PLATFORM /*在 Qt4 中，QDialogButtonBox 构造函数需要三个参数，其中第二个参数为布局方式，即横向或纵向排列。由于 Qt5 中已经移除了该参数， 因此在 Qt4 中需要手动指定。该语句的含义为创建一个包含确定和取消按钮的 QDialogButtonBox 控件，并将其作为子控件添加到当前窗口中。*/ m_buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, this); #else m_buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this); #endif m_buttonBox->setFixedSize(180, 40); m_buttonBox->move(30, 120); connect(m_buttonBox, SIGNAL(accepted()), this, SLOT(accept())); connect(m_buttonBox, SIGNAL(rejected()), this, SLOT(reject())); m_keypadDialog = new KeypadDialog(this); } QString Dialog::ip() { return m_ipLineEdit->text(); } int Dialog::port() { return m_portLineEdit->text().toInt(); } void Dialog::slotEnterIPAddress() { m_keypadDialog->setTitle("输入IP地址"); if (m_keypadDialog->exec() == QDialog::Accepted) { m_ipLineEdit->setText(m_keypadDialog->text()); } } void Dialog::slotEnterPort() { m_keypadDialog->setTitle("输入端口号"); if (m_keypadDialog->exec() == QDialog::Accepted) { m_portLineEdit->setText(m_keypadDialog->text()); } }