QObject::connect: occQt.cpp:324 中没有这样的插槽 QWidget::makeyourbox()

Question

我是新来的。

ui 运行很好，但是当我点击 'okbtn' ...

QObject::connect: No such slot QWidget::makeyourbox() in occQt.cpp:324

当我点击 'cancelbtn' 时，它运行s.

感谢您的任何回复，陈奕迅

代码：

void occQt::about2()  //UI
{
    QWidget* pWidget = new QWidget;
    QLabel* longlabel = new QLabel(tr("long"));
    QLabel* widthlabel = new QLabel(tr("width"));
    QLabel* highlabel = new QLabel(tr("high"));
    longlineedit = new QLineEdit;
    widthlineedit = new QLineEdit;
    highlineedit = new QLineEdit;
    QPushButton* okbtn = new QPushButton(tr("ok"));
    QPushButton* cancelbtn = new QPushButton(tr("cancel"));
    QGridLayout* gridlayout = new QGridLayout;
    QVBoxLayout* dlglayout = new QVBoxLayout;
    QHBoxLayout* btnlayout = new QHBoxLayout;
    gridlayout->addWidget(longlabel, 0, 0, 1, 1);
    gridlayout->addWidget(widthlabel, 1, 0, 1, 1);
    gridlayout->addWidget(highlabel, 2, 0, 1, 1);
    gridlayout->addWidget(longlineedit, 0, 1, 1, 3);
    gridlayout->addWidget(widthlineedit, 1, 1, 1, 3);
    gridlayout->addWidget(highlineedit, 2, 1, 1, 3);
    longlineedit->setText("5");
    widthlineedit->setText("5");
    highlineedit->setText("5");
    btnlayout->setSpacing(60);
    btnlayout->addWidget(okbtn);
    btnlayout->addWidget(cancelbtn);
    //pWidget->setLayout(gridlayout);
    dlglayout->setMargin(50);
    dlglayout->addLayout(gridlayout);
    dlglayout->addStretch(40);
    dlglayout->addLayout(btnlayout);
    pWidget->setLayout(dlglayout);
    pWidget->setWindowTitle(tr("Make a Box by custom."));
    pWidget->show();
    connect(okbtn, SIGNAL(clicked()), pWidget, SLOT(makeyourbox()));
    //QObject::connect(okbtn, SIGNAL(clicked()), pWidget, SLOT(close()));
    connect(cancelbtn, SIGNAL(clicked()), pWidget, SLOT(close()));
}

void occQt::makeyourbox()
{
    QString string_a = longlineedit->text();
    eason_a = string_a.toInt();
    QString string_b = widthlineedit->text();
    eason_b = string_b.toInt();
    QString string_c = highlineedit->text();
    eason_c = string_c.toInt();
    TopoDS_Shape aTopoBox = BRepPrimAPI_MakeBox(eason_a, eason_b, eason_c).Shape();
    Handle_AIS_Shape anAisBox = new AIS_Shape(aTopoBox);
    anAisBox->SetColor(Quantity_NOC_AZURE);
    mContext->Display(anAisBox);
}

当我运行pWidget时，点击cancelbtn，ui关闭。点击okbtn，什么都不做..

Answer 1

你应该将makeyourbox()方法添加到QWidget的子类中，并将其标记为slot

Answer 2

仔细检查 makeyourbox 被定义为 class 中的一个插槽。

Answer 3

pWidget 是一个通用的 QWidget。它不包含 method/slot makeyourbox()。您的代码有问题。

QObject::connect: occQt.cpp:324 中没有这样的插槽 QWidget::makeyourbox()

QObject::connect: No such slot QWidget::makeyourbox() in occQt.cpp:324

c++

qt5

opencascade