我创建了一个类,它是QWidget的子类,用于绘制图像,只用于绘制图像,名为ImageWidget。
当我仅创建一个ImageWidget并调用ImageWidget.show()时,一切正常。接下来我创建了另一个QWidget子类,如下所示。目前,只显示组合框和滑动条,图像没有显示。有人能帮助我解决吗?
MainWindow::MainWindow(QWidget *parent) :
QWidget(parent)
{
imgWidget=new ImageWidget(this);
fractalTypeLabel=new QLabel(tr("Type"));
typeCombo=new QComboBox();
typeCombo->addItem(tr("One"));
typeCombo->addItem(tr("Two"));
scalefactorLabel=new QLabel(tr("Scale Factor"));
scalefactorSlider=new QSlider(Qt::Horizontal);
scalefactorSlider->setTickInterval(1);
scalefactorSlider->setTickPosition(QSlider::TicksBelow);
QVBoxLayout *imageLayout=new QVBoxLayout();
imageLayout->addWidget(imgWidget);
QGridLayout *gridLayout=new QGridLayout;
gridLayout->addWidget(fractalTypeLabel,0,0);
gridLayout->addWidget(typeCombo,0,1);
gridLayout->addWidget(scalefactorLabel,1,0);
gridLayout->addWidget(scalefactorSlider,1,1);
QHBoxLayout *mainLayout=new QHBoxLayout;
mainLayout->addLayout(imageLayout);
mainLayout->addLayout(gridLayout);
this->setLayout(mainLayout);
}
最好的问候,