Qt 信号-槽函数（signal - slot）

新建一个form1窗体后，ui中拖入控件lineEdit，radioButton、radioButton_2、QGroupBox，
radioButton、radioButton_2放在QGroupBox上面，因为此时会在radioButton之间有一个聚焦，

form1.h

public slots:void ontext1Changed( QWidget* pSource);void onedit1GotFocus( QWidget* pSource);void onkeyUp1( int nKey, int nButtonState, bool& rbIgnoreEvent, QWidget* pSource);void onradioButton1Sel( QWidget* pSource);void onradioButton2Sel( QWidget* pSource);void onkeyUpRadio1( int nKey, int nButtonState, bool& rbIgnoreEvent, QWidget* pSource);void onkeyUpRadio2( int nKey, int nButtonState, bool& rbIgnoreEvent, QWidget* pSource);

form1.cpp

form1::form1(QWidget* pParent, const QString& rszName): SlGfwDialogForm(pParent, rszName)
{setupUi(this);QObject::connect(this->lineEdit,SIGNAL(valueChanged( QWidget *)),this,SLOT( ontext1Changed( QWidget *)));QObject::connect(this->lineEdit,SIGNAL(gotFocus( QWidget *)),this,SLOT( onedit1GotFocus( QWidget *)));QObject::connect(this->lineEdit,SIGNAL( keyUp( int, int, bool&, QWidget*)),this,SLOT( onkeyUp1( int, int, bool&, QWidget*)));QObject::connect(this->radioButton,SIGNAL(gotFocus( QWidget *)),this,SLOT( onradioButton1Sel( QWidget *)));QObject::connect(this->radioButton_2,SIGNAL(gotFocus( QWidget *)),this,SLOT( onradioButton2Sel( QWidget *)));QObject::connect(this->radioButton,SIGNAL( keyUp( int, int, bool&, QWidget*)),this,SLOT( onkeyUpRadio1( int, int, bool&, QWidget*)));QObject::connect(this->radioButton_2,SIGNAL( keyUp( int, int, bool&, QWidget*)),this,SLOT( onkeyUpRadio2( int, int, bool&, QWidget*)));
}// <-- form1::form1 ()

void form1::ontext1Changed( QWidget* pSource)
{//this->lineEdit->setValue(QVariant(text));QVariant text = this->lineEdit->value();//...=text.toString();  //自行处理数据
}void form1::onedit1GotFocus(QWidget *pSource)
{this->lineEdit->setEditMode(true);this->lineEdit->end(true);
}void form1::onkeyUp1( int nKey, int nButtonState, bool& rbIgnoreEvent, QWidget* pSource)
{QVariant vdata;bool bRet = this->lineEdit->currentValue(vdata);if ( bRet == true){QString text = vdata.toString();//... = text;  //自行处理数据}
}

void form1::onradioButton1Sel( QWidget* pSource)
{this->radioButton->setChecked(true);this->radioButton_2->setChecked(false);
}void form1::onradioButton2Sel( QWidget* pSource)
{this->radioButton->setChecked(false);this->radioButton_2->setChecked(true);
}void form1::onkeyUpRadio1( int nKey, int nButtonState, bool& rbIgnoreEvent, QWidget* pSource)
{QMessageBox msgBox;//msgBox.setText("onKeyUpRadio: Start");//msgBox.exec();bool btab = false;if ( nKey == Qt::Key_Up){//rbIgnoreEvent = true;//msgBox.setText("onKeyUpRadio: Key_Up");//msgBox.exec();btab = true;}else if ( nKey == Qt::Key_Down){//rbIgnoreEvent = true;//msgBox.setText("onKeyUpRadio: Key_Down");//msgBox.exec();btab = true;}else if ( nKey == Qt::Key_Tab){//rbIgnoreEvent = true;//msgBox.setText("onKeyUpRadio: Key_Down");//msgBox.exec();btab = true;}if ( btab == true){if ( !this->radioButton->isChecked()){rbIgnoreEvent = true;this->radioButton_2->setFocus();}}else{this->onradioButton1Sel( pSource);}
}void form1::onkeyUpRadio2( int nKey, int nButtonState, bool& rbIgnoreEvent, QWidget* pSource)
{QMessageBox msgBox;//msgBox.setText("onKeyUpRadio: Start");//msgBox.exec();bool btab = false;if ( nKey == Qt::Key_Up){//rbIgnoreEvent = true;//msgBox.setText("onKeyUpRadio: Key_Up");//msgBox.exec();btab = true;}else if ( nKey == Qt::Key_Down){//rbIgnoreEvent = true;//msgBox.setText("onKeyUpRadio: Key_Down");//msgBox.exec();btab = true;}else if ( nKey == Qt::Key_Tab){//rbIgnoreEvent = true;//msgBox.setText("onKeyUpRadio: Key_Down");//msgBox.exec();btab = true;}if ( btab == true){if ( !this->radioButton_2->isChecked()){rbIgnoreEvent = true;this->radioButton->setFocus();}}else{this->onradioButton2Sel( pSource);}
}