Qt 5.6 | Qt Widgets | Config Dialog Example | configdialog.cpp Example File

Qt 5.6.3 Reference Documentation

# configdialog.cpp Example File

dialogs/configdialog/configdialog.cpp

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      #include <QtWidgets>

      #include "configdialog.h"
      #include "pages.h"

      ConfigDialog::ConfigDialog()
      {
          contentsWidget = new QListWidget;
          contentsWidget->setViewMode(QListView::IconMode);
          contentsWidget->setIconSize(QSize(96, 84));
          contentsWidget->setMovement(QListView::Static);
          contentsWidget->setMaximumWidth(128);
          contentsWidget->setSpacing(12);

          pagesWidget = new QStackedWidget;
          pagesWidget->addWidget(new ConfigurationPage);
          pagesWidget->addWidget(new UpdatePage);
          pagesWidget->addWidget(new QueryPage);

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

          createIcons();
          contentsWidget->setCurrentRow(0);

          connect(closeButton, &QAbstractButton::clicked, this, &QWidget::close);

          QHBoxLayout *horizontalLayout = new QHBoxLayout;
          horizontalLayout->addWidget(contentsWidget);
          horizontalLayout->addWidget(pagesWidget, 1);

          QHBoxLayout *buttonsLayout = new QHBoxLayout;
          buttonsLayout->addStretch(1);
          buttonsLayout->addWidget(closeButton);

          QVBoxLayout *mainLayout = new QVBoxLayout;
          mainLayout->addLayout(horizontalLayout);
          mainLayout->addStretch(1);
          mainLayout->addSpacing(12);
          mainLayout->addLayout(buttonsLayout);
          setLayout(mainLayout);

          setWindowTitle(tr("Config Dialog"));
      }

      void ConfigDialog::createIcons()
      {
          QListWidgetItem *configButton = new QListWidgetItem(contentsWidget);
          configButton->setIcon(QIcon(":/images/config.png"));
          configButton->setText(tr("Configuration"));
          configButton->setTextAlignment(Qt::AlignHCenter);
          configButton->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);

          QListWidgetItem *updateButton = new QListWidgetItem(contentsWidget);
          updateButton->setIcon(QIcon(":/images/update.png"));
          updateButton->setText(tr("Update"));
          updateButton->setTextAlignment(Qt::AlignHCenter);
          updateButton->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);

          QListWidgetItem *queryButton = new QListWidgetItem(contentsWidget);
          queryButton->setIcon(QIcon(":/images/query.png"));
          queryButton->setText(tr("Query"));
          queryButton->setTextAlignment(Qt::AlignHCenter);
          queryButton->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);

          connect(contentsWidget, &QListWidget::currentItemChanged, this, &ConfigDialog::changePage);
      }

      void ConfigDialog::changePage(QListWidgetItem *current, QListWidgetItem *previous)
      {
          if (!current)
              current = previous;

          pagesWidget->setCurrentIndex(contentsWidget->row(current));
      }