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/*!
  \page widget-classes.html
  \title Widgets Classes
  \ingroup qt-gui-concepts
  \brief The primary elements for designing user interfaces in Qt.

  \section1 The Widget Classes

  The following sections list the widget classes. See the \l{Qt Widget
  Gallery} for some examples.

  \section2 Basic Widget Classes

    These basic widgets (controls), e.g. buttons, comboboxes and
    scroll bars, are designed for direct use.

    \table
    \row
    \li \image fusion-label.png
    \li \image windowsvista-pushbutton.png
    \li \image macintosh-progressbar.png
    \row
    \li \image fusion-combobox.png
    \li \image windowsvista-radiobutton.png
    \li \image macintosh-lineedit.png
    \endtable

    \annotatedlist basicwidgets

    \table
    \row
    \li \image windowsvista-tabwidget.png
    \li \image macintosh-groupbox.png
    \endtable


  \section2 Advanced Widget Classes

      Advanced GUI widgets, e.g. tab widgets and progress bars, provide
      more complex user interface controls.

      \table
      \row
      \li \image windowsxp-treeview.png
      \li \image fusion-calendarwidget.png
      \li \image qundoview.png
      \endtable

      \annotatedlist advanced


  \section2 Abstract Widget Classes

    The abstract widget classes are base classes. They are not usable as
    standalone classes but provide functionality when they are subclassed.

    \annotatedlist abstractwidgets


  \section2 Organizer Widget Classes

    Classes like splitters, tab bars, button groups, etc are used for
    organizing and grouping GUI primitives into more complex
    applications and dialogs.

    \annotatedlist organizers


  \section2 Graphics View Classes

    \annotatedlist graphicsview-api


  \section2 Model/View Classes

    \annotatedlist model-view


  \section2 Main Window and Related Classes

    \annotatedlist mainwindow-classes


  \section2 Widget Appearance and Style-Related Classes
    Classes used for customizing UI appearance and style.

    \annotatedlist appearance


  \section2 Layout Classes
    \annotatedlist geomanagement


*/