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# window.cpp Example File
widgets/groupbox/window.cpp

        #include <QtGui>

        #include "window.h"

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

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

        QGroupBox *Window::createFirstExclusiveGroup()
        {
            QGroupBox *groupBox = new QGroupBox(tr("Exclusive Radio Buttons"), this);

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

            radio1->setChecked(true);

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

            return groupBox;
        }

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

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

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

            return groupBox;
        }

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

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

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

            return groupBox;
        }

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

            QPushButton *pushButton = new QPushButton(tr("&Normal Button"), groupBox);
            QPushButton *toggleButton = new QPushButton(tr("&Toggle Button"), groupBox);
            toggleButton->setCheckable(true);
            toggleButton->setChecked(true);
            QPushButton *flatButton = new QPushButton(tr("&Flat Button"), groupBox);
            flatButton->setFlat(true);

            QPushButton *popupButton = new QPushButton(tr("Pop&up Button"), groupBox);
            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);

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

            return groupBox;
        }