QT的QGroupBox

#include <QtWidgets>

#include "window.h"


Window::Window(QWidget *parent)
    : QWidget(parent)
{
QGridLayout *grid = new QGridLayout;
grid->addWidget(createFirstExclusiveGroup(), 0, 0);
grid->addWidget(createSecondExclusiveGroup(), 1, 0);
grid->addWidget(createNonExclusiveGroup(), 0, 1);
grid->addWidget(createPushButtonGroup(), 1, 1);
setLayout(grid);

setWindowTitle(tr("Group Boxes"));
resize(480, 320);
}

QGroupBox *Window::createFirstExclusiveGroup()
{

QGroupBox *groupBox = new QGroupBox(tr("Exclusive Radio Buttons"));

QRadioButton *radio1 = new QRadioButton(tr("&Radio button 1"));
QRadioButton *radio2 = new QRadioButton(tr("R&adio button 2"));
QRadioButton *radio3 = new QRadioButton(tr("Ra&dio button 3"));

radio1->setChecked(true);


QVBoxLayout *vbox = new QVBoxLayout;
vbox->addWidget(radio1);
vbox->addWidget(radio2);
vbox->addWidget(radio3);
vbox->addStretch(1);
groupBox->setLayout(vbox);


return groupBox;
}

QGroupBox *Window::createSecondExclusiveGroup()
{
QGroupBox *groupBox = new QGroupBox(tr("E&xclusive Radio Buttons"));
groupBox->setCheckable(true);
groupBox->setChecked(false);

QRadioButton *radio1 = new QRadioButton(tr("Rad&io button 1"));
QRadioButton *radio2 = new QRadioButton(tr("Radi&o button 2"));
QRadioButton *radio3 = new QRadioButton(tr("Radio &button 3"));
radio1->setChecked(true);
QCheckBox *checkBox = new QCheckBox(tr("Ind&ependent checkbox"));
checkBox->setChecked(true);

QVBoxLayout *vbox = new QVBoxLayout;
vbox->addWidget(radio1);
vbox->addWidget(radio2);
vbox->addWidget(radio3);
vbox->addWidget(checkBox);
vbox->addStretch(1);
groupBox->setLayout(vbox);

return groupBox;
}
QGroupBox *Window::createNonExclusiveGroup()
{
QGroupBox *groupBox = new QGroupBox(tr("Non-Exclusive Checkboxes"));
groupBox->setFlat(true);

QCheckBox *checkBox1 = new QCheckBox(tr("&Checkbox 1"));
QCheckBox *checkBox2 = new QCheckBox(tr("C&heckbox 2"));
checkBox2->setChecked(true);
QCheckBox *tristateBox = new QCheckBox(tr("Tri-&state button"));
tristateBox->setTristate(true);

tristateBox->setCheckState(Qt::PartiallyChecked);


QVBoxLayout *vbox = new QVBoxLayout;
vbox->addWidget(checkBox1);
vbox->addWidget(checkBox2);
vbox->addWidget(tristateBox);
vbox->addStretch(1);
groupBox->setLayout(vbox);

return groupBox;
}

QGroupBox *Window::createPushButtonGroup()
{
QGroupBox *groupBox = new QGroupBox(tr("&Push Buttons"));
groupBox->setCheckable(true);
groupBox->setChecked(true);

QPushButton *pushButton = new QPushButton(tr("&Normal Button"));
QPushButton *toggleButton = new QPushButton(tr("&Toggle Button"));
toggleButton->setCheckable(true);
toggleButton->setChecked(true);
QPushButton *flatButton = new QPushButton(tr("&Flat Button"));
flatButton->setFlat(true);
QPushButton *popupButton = new QPushButton(tr("Pop&up Button"));
QMenu *menu = new QMenu(this);
menu->addAction(tr("&First Item"));
menu->addAction(tr("&Second Item"));
menu->addAction(tr("&Third Item"));
menu->addAction(tr("F&ourth Item"));
popupButton->setMenu(menu);

QAction *newAction = menu->addAction(tr("Submenu"));
QMenu *subMenu = new QMenu(tr("Popup Submenu"));
subMenu->addAction(tr("Item 1"));
subMenu->addAction(tr("Item 2"));
subMenu->addAction(tr("Item 3"));
newAction->setMenu(subMenu);


QVBoxLayout *vbox = new QVBoxLayout;
vbox->addWidget(pushButton);
vbox->addWidget(toggleButton);
vbox->addWidget(flatButton);
vbox->addWidget(popupButton);
vbox->addStretch(1);
groupBox->setLayout(vbox);

return groupBox;
}