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finddialog.cpp Example File
^{dialogs/extension/finddialog.cpp}

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    **
    ** This file is part of the documentation of the Qt Toolkit.
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    ** and appearing in the file LICENSE.GPL included in the packaging of
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    #include <QtGui>

    #include "finddialog.h"

    FindDialog::FindDialog(QWidget *parent)
        : QDialog(parent)
    {
        label = new QLabel(tr("Find &what:"));
        lineEdit = new QLineEdit;
        label->setBuddy(lineEdit);

        caseCheckBox = new QCheckBox(tr("Match &case"));
        fromStartCheckBox = new QCheckBox(tr("Search from &start"));
        fromStartCheckBox->setChecked(true);

        findButton = new QPushButton(tr("&Find"));
        findButton->setDefault(true);

        closeButton = new QPushButton(tr("Close"));

        moreButton = new QPushButton(tr("&More"));
        moreButton->setCheckable(true);
        moreButton->setAutoDefault(false);

        extension = new QWidget;

        wholeWordsCheckBox = new QCheckBox(tr("&Whole words"));
        backwardCheckBox = new QCheckBox(tr("Search &backward"));
        searchSelectionCheckBox = new QCheckBox(tr("Search se&lection"));

        connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));
        connect(moreButton, SIGNAL(toggled(bool)), extension, SLOT(setVisible(bool)));

        QVBoxLayout *extensionLayout = new QVBoxLayout;
        extensionLayout->setMargin(0);
        extensionLayout->addWidget(wholeWordsCheckBox);
        extensionLayout->addWidget(backwardCheckBox);
        extensionLayout->addWidget(searchSelectionCheckBox);
        extension->setLayout(extensionLayout);

        QHBoxLayout *topLeftLayout = new QHBoxLayout;
        topLeftLayout->addWidget(label);
        topLeftLayout->addWidget(lineEdit);

        QVBoxLayout *leftLayout = new QVBoxLayout;
        leftLayout->addLayout(topLeftLayout);
        leftLayout->addWidget(caseCheckBox);
        leftLayout->addWidget(fromStartCheckBox);
        leftLayout->addStretch(1);

        QVBoxLayout *rightLayout = new QVBoxLayout;
        rightLayout->addWidget(findButton);
        rightLayout->addWidget(closeButton);
        rightLayout->addWidget(moreButton);
        rightLayout->addStretch(1);

        QGridLayout *mainLayout = new QGridLayout;
        mainLayout->setSizeConstraint(QLayout::SetFixedSize);
        mainLayout->addLayout(leftLayout, 0, 0);
        mainLayout->addLayout(rightLayout, 0, 1);
        mainLayout->addWidget(extension, 1, 0, 1, 2);
        setLayout(mainLayout);

        setWindowTitle(tr("Extension"));
        extension->hide();
    }