Qt 5.6 | Qt Widgets | Part 7 - Additional Features | finddialog.cpp Example File

Qt 5.6.2 Reference Documentation

# finddialog.cpp Example File

tutorials/addressbook/part7/finddialog.cpp

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      #include <QtWidgets>
      #include "finddialog.h"

      FindDialog::FindDialog(QWidget *parent)
          : QDialog(parent)
      {
          QLabel *findLabel = new QLabel(tr("Enter the name of a contact:"));
          lineEdit = new QLineEdit;

          findButton = new QPushButton(tr("&Find"));
          findText = "";

          QHBoxLayout *layout = new QHBoxLayout;
          layout->addWidget(findLabel);
          layout->addWidget(lineEdit);
          layout->addWidget(findButton);

          setLayout(layout);
          setWindowTitle(tr("Find a Contact"));
          connect(findButton, SIGNAL(clicked()), this, SLOT(findClicked()));
          connect(findButton, SIGNAL(clicked()), this, SLOT(accept()));
      }

      void FindDialog::findClicked()
      {
          QString text = lineEdit->text();

          if (text.isEmpty()) {
              QMessageBox::information(this, tr("Empty Field"),
                  tr("Please enter a name."));
              return;
          } else {
              findText = text;
              lineEdit->clear();
              hide();
          }
      }

      QString FindDialog::getFindText()
      {
          return findText;
      }