Qt 5.6 | Qt Widgets | Extension Example | finddialog.cpp Example File

Qt 5.6.3 Reference Documentation

# finddialog.cpp Example File

dialogs/extension/finddialog.cpp

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      #include <QtWidgets>

      #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);

          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"));

          buttonBox = new QDialogButtonBox(Qt::Vertical);
          buttonBox->addButton(findButton, QDialogButtonBox::ActionRole);
          buttonBox->addButton(moreButton, QDialogButtonBox::ActionRole);

          connect(moreButton, &QAbstractButton::toggled, extension, &QWidget::setVisible);

          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);

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

          setLayout(mainLayout);

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