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qt-C++笔记之组件-分组框QGroupBox

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1.《Qt 6 C++开发指南》p75

2.《Qt 官方文档》

中间段落翻译：

我把示例补充完整：

#include <QApplication>
#include <QWidget>
#include <QGroupBox>
#include <QRadioButton>
#include <QVBoxLayout>int main(int argc, char *argv[]) {QApplication app(argc, argv);QWidget window;window.setWindowTitle("Radio Buttons Example");QGroupBox *groupBox = new QGroupBox(QObject::tr("Exclusive Radio Buttons"), &window);QRadioButton *radio1 = new QRadioButton(QObject::tr("&Radio button 1"), &window);QRadioButton *radio2 = new QRadioButton(QObject::tr("R&adio button 2"), &window);QRadioButton *radio3 = new QRadioButton(QObject::tr("Ra&dio button 3"), &window);radio1->setChecked(true);QVBoxLayout *vbox = new QVBoxLayout;vbox->addWidget(radio1);vbox->addWidget(radio2);vbox->addWidget(radio3);vbox->addStretch(1);groupBox->setLayout(vbox);QVBoxLayout *layout = new QVBoxLayout(&window);layout->addWidget(groupBox);window.setLayout(layout);window.show();return app.exec();
}

组件关系

+-------------------------------------------------------+
|                  QWidget (window)                      |
|                                                       |
|  +-----------------------------------------------+    |
|  |             QVBoxLayout (layout)              |    |
|  |                                               |    |
|  |   +---------------------------------------+   |    |
|  |   |    QGroupBox (groupBox)               |   |    |
|  |   |                                       |   |    |
|  |   |  +-------------------------------+    |   |    |
|  |   |  | QVBoxLayout (vbox)           |    |   |    |
|  |   |  |                           |    |   |   |    |
|  |   |  |  +----------------+       |    |   |   |    |
|  |   |  |  | QRadioButton  |       |    |   |   |    |
|  |   |  |  | (radio1)      |       |    |   |   |    |
|  |   |  |  +----------------+       |    |   |   |    |
|  |   |  |  +----------------+       |    |   |   |    |
|  |   |  |  | QRadioButton  |       |    |   |   |    |
|  |   |  |  | (radio2)      |       |    |   |   |    |
|  |   |  |  +----------------+       |    |   |   |    |
|  |   |  |  +----------------+       |    |   |   |    |
|  |   |  |  | QRadioButton  |       |    |   |   |    |
|  |   |  |  | (radio3)      |       |    |   |   |    |
|  |   |  |  +----------------+       |    |   |   |    |
|  |   |  |                           |    |   |   |    |
|  |   |  |       addStretch(1)        |    |   |   |    |
|  |   |  +-------------------------------+    |   |    |
|  |   |                                       |   |    |
|  +-----------------------------------------------+    |
|                                                       |
+-------------------------------------------------------+

3.《Qt 5.12实战》——5.9 分组框控件