wxWidgets/interface/radiobut.h

/////////////////////////////////////////////////////////////////////////////
// Name:        radiobut.h
// Purpose:     interface of wxRadioButton
// Author:      wxWidgets team
// RCS-ID:      $Id$
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

/**
    @class wxRadioButton
    @wxheader{radiobut.h}

    A radio button item is a button which usually denotes one of several mutually
    exclusive options. It has a text label next to a (usually) round button.

    You can create a group of mutually-exclusive radio buttons by specifying @c
    wxRB_GROUP for
    the first in the group. The group ends when another radio button group is
    created, or there are no more radio buttons.

    @beginStyleTable
    @style{wxRB_GROUP}:
           Marks the beginning of a new group of radio buttons.
    @style{wxRB_SINGLE}:
           In some circumstances, radio buttons that are not consecutive
           siblings trigger a hang bug in Windows (only). If this happens, add
           this style to mark the button as not belonging to a group, and
           implement the mutually-exclusive group behaviour yourself.
    @style{wxRB_USE_CHECKBOX}:
           Use a checkbox button instead of radio button (currently supported
           only on PalmOS).
    @endStyleTable

    @beginEventTable
    @event{EVT_RADIOBUTTON(id, func)}:
           Process a wxEVT_COMMAND_RADIOBUTTON_SELECTED event, when the
           radiobutton is clicked.
    @endEventTable

    @library{wxcore}
    @category{ctrl}
    @appearance{radiobutton.png}

    @see @ref overview_eventhandlingoverview, wxRadioBox, wxCheckBox
*/
class wxRadioButton : public wxControl
{
public:
    //@{
    /**
        Constructor, creating and showing a radio button.
        
        @param parent
            Parent window. Must not be @NULL.
        @param id
            Window identifier. The value wxID_ANY indicates a default value.
        @param label
            Label for the radio button.
        @param pos
            Window position. If wxDefaultPosition is specified then a default
        position is chosen.
        @param size
            Window size. If wxDefaultSize is specified then a default size
        is chosen.
        @param style
            Window style. See wxRadioButton.
        @param validator
            Window validator.
        @param name
            Window name.
        
        @see Create(), wxValidator
    */
    wxRadioButton();
    wxRadioButton(wxWindow* parent, wxWindowID id,
                  const wxString& label,
                  const wxPoint& pos = wxDefaultPosition,
                  const wxSize& size = wxDefaultSize,
                  long style = 0,
                  const wxValidator& validator = wxDefaultValidator,
                  const wxString& name = "radioButton");
    //@}

    /**
        Destructor, destroying the radio button item.
    */
    ~wxRadioButton();

    /**
        Creates the choice for two-step construction. See wxRadioButton() for
        further details.
    */
    bool Create(wxWindow* parent, wxWindowID id,
                const wxString& label,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = 0,
                const wxValidator& validator = wxDefaultValidator,
                const wxString& name = "radioButton");

    /**
        Returns @true if the radio button is depressed, @false otherwise.
    */
    bool GetValue() const;

    /**
        Sets the radio button to selected or deselected status. This does not cause a
        wxEVT_COMMAND_RADIOBUTTON_SELECTED event to get emitted.
        
        @param value
            @true to select, @false to deselect.
    */
    void SetValue(const bool value);
};