Qt 5.9 | Qt Widgets | Window Flags Example | previewwindow.cpp Example File

Qt 5.9.9 Reference Documentation

# previewwindow.cpp Example File

widgets/windowflags/previewwindow.cpp

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      ** This file is part of the examples of the Qt Toolkit.
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      #include <QtWidgets>

      #include "previewwindow.h"

      PreviewWindow::PreviewWindow(QWidget *parent)
          : QWidget(parent)
      {
          textEdit = new QTextEdit;
          textEdit->setReadOnly(true);
          textEdit->setLineWrapMode(QTextEdit::NoWrap);

          closeButton = new QPushButton(tr("&Close"));
          connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));

          QVBoxLayout *layout = new QVBoxLayout;
          layout->addWidget(textEdit);
          layout->addWidget(closeButton);
          setLayout(layout);

          setWindowTitle(tr("Preview"));
      }

      void PreviewWindow::setWindowFlags(Qt::WindowFlags flags)
      {
          QWidget::setWindowFlags(flags);

          QString text;

          Qt::WindowFlags type = (flags & Qt::WindowType_Mask);
          if (type == Qt::Window) {
              text = "Qt::Window";
          } else if (type == Qt::Dialog) {
              text = "Qt::Dialog";
          } else if (type == Qt::Sheet) {
              text = "Qt::Sheet";
          } else if (type == Qt::Drawer) {
              text = "Qt::Drawer";
          } else if (type == Qt::Popup) {
              text = "Qt::Popup";
          } else if (type == Qt::Tool) {
              text = "Qt::Tool";
          } else if (type == Qt::ToolTip) {
              text = "Qt::ToolTip";
          } else if (type == Qt::SplashScreen) {
              text = "Qt::SplashScreen";
          }

          if (flags & Qt::MSWindowsFixedSizeDialogHint)
              text += "\n| Qt::MSWindowsFixedSizeDialogHint";
          if (flags & Qt::X11BypassWindowManagerHint)
              text += "\n| Qt::X11BypassWindowManagerHint";
          if (flags & Qt::FramelessWindowHint)
              text += "\n| Qt::FramelessWindowHint";
          if (flags & Qt::NoDropShadowWindowHint)
              text += "\n| Qt::NoDropShadowWindowHint";
          if (flags & Qt::WindowTitleHint)
              text += "\n| Qt::WindowTitleHint";
          if (flags & Qt::WindowSystemMenuHint)
              text += "\n| Qt::WindowSystemMenuHint";
          if (flags & Qt::WindowMinimizeButtonHint)
              text += "\n| Qt::WindowMinimizeButtonHint";
          if (flags & Qt::WindowMaximizeButtonHint)
              text += "\n| Qt::WindowMaximizeButtonHint";
          if (flags & Qt::WindowCloseButtonHint)
              text += "\n| Qt::WindowCloseButtonHint";
          if (flags & Qt::WindowContextHelpButtonHint)
              text += "\n| Qt::WindowContextHelpButtonHint";
          if (flags & Qt::WindowShadeButtonHint)
              text += "\n| Qt::WindowShadeButtonHint";
          if (flags & Qt::WindowStaysOnTopHint)
              text += "\n| Qt::WindowStaysOnTopHint";
          if (flags & Qt::CustomizeWindowHint)
              text += "\n| Qt::CustomizeWindowHint";

          textEdit->setPlainText(text);
      }