don't place NULL pointers in the GDK window array in GTKGetWindow()

[wxWidgets.git] / interface / wx / spinctrl.h

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

/**
    @class wxSpinCtrl

    wxSpinCtrl combines wxTextCtrl and wxSpinButton in one control.

    @beginStyleTable
    @style{wxSP_ARROW_KEYS}
        The user can use arrow keys to change the value.
    @style{wxSP_WRAP}
        The value wraps at the minimum and maximum.
    @style{wxTE_PROCESS_ENTER}
        Indicates that the control should generate wxEVT_COMMAND_TEXT_ENTER
        events. Using this style will prevent the user from using the Enter key
        for dialog navigation (e.g. activating the default button in the
        dialog) under MSW.
    @style{wxALIGN_LEFT}
        Same as wxTE_LEFT for wxTextCtrl: the text is left aligned.
    @style{wxALIGN_CENTRE}
        Same as wxTE_CENTRE for wxTextCtrl: the text is centered.
    @style{wxALIGN_RIGHT}
        Same as wxTE_RIGHT for wxTextCtrl: the text is right aligned (this is
        the default).
    @endStyleTable


    @beginEventEmissionTable{wxSpinEvent}
    @event{EVT_SPINCTRL(id, func)}
        Generated whenever the numeric value of the spinctrl is updated
    @endEventTable

    You may also use the wxSpinButton event macros, however the corresponding events
    will not be generated under all platforms. Finally, if the user modifies the
    text in the edit part of the spin control directly, the EVT_TEXT is generated,
    like for the wxTextCtrl. When the use enters text into the text area, the text
    is not validated until the control loses focus (e.g. by using the TAB key).
    The value is then adjusted to the range and a wxSpinEvent sent then if the value
    is different from the last value sent.

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

    @see wxSpinButton, wxSpinCtrlDouble, wxControl
*/
class wxSpinCtrl : public wxControl
{
public:
    /**
       Default constructor.
    */
    wxSpinCtrl();

    /**
        Constructor, creating and showing a spin control.

        @param parent
            Parent window. Must not be @NULL.
        @param value
            Default value (as text).
        @param id
            Window identifier. The value wxID_ANY indicates a default value.
        @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 wxSpinButton.
        @param min
            Minimal value.
        @param max
            Maximal value.
        @param initial
            Initial value.
        @param name
            Window name.

        @see Create()
    */
    wxSpinCtrl(wxWindow* parent, wxWindowID id = wxID_ANY,
               const wxString& value = wxEmptyString,
               const wxPoint& pos = wxDefaultPosition,
               const wxSize& size = wxDefaultSize,
               long style = wxSP_ARROW_KEYS,
               int min = 0, int max = 100,
               int initial = 0, const wxString& name = "wxSpinCtrl");

    /**
        Creation function called by the spin control constructor.
        See wxSpinCtrl() for details.
    */
    bool Create(wxWindow* parent, wxWindowID id = wxID_ANY,
                const wxString& value = wxEmptyString,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = wxSP_ARROW_KEYS, int min = 0, int max = 100,
                int initial = 0, const wxString& name = "wxSpinCtrl");

    /**
        Gets maximal allowable value.
    */
    int GetMax() const;

    /**
        Gets minimal allowable value.
    */
    int GetMin() const;

    /**
        Gets the value of the spin control.
    */
    int GetValue() const;

    /**
        Sets range of allowable values.
    */
    void SetRange(int minVal, int maxVal);

    /**
        Select the text in the text part of the control between  positions
        @a from (inclusive) and @a to (exclusive).
        This is similar to wxTextCtrl::SetSelection().

        @note this is currently only implemented for Windows and generic versions
              of the control.
    */
    virtual void SetSelection(long from, long to);

    /**
        Sets the value of the spin control. Use the variant using int instead.
    */
    virtual void SetValue(const wxString& text);

    /**
        Sets the value of the spin control.
    */
    void SetValue(int value);
};