wxWidgets/interface/bmpbuttn.h

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

/**
    @class wxBitmapButton
    @wxheader{bmpbuttn.h}

    A bitmap button is a control that contains a bitmap.
    It may be placed on a @ref overview_wxdialog "dialog box" or panel(), or indeed
    almost any other window.

    @beginStyleTable
    @style{wxBU_AUTODRAW}:
           If this is specified, the button will be drawn automatically using
           the label bitmap only, providing a 3D-look border. If this style is
           not specified, the button will be drawn without borders and using
           all provided bitmaps. WIN32 only.
    @style{wxBU_LEFT}:
           Left-justifies the bitmap label. WIN32 only.
    @style{wxBU_TOP}:
           Aligns the bitmap label to the top of the button. WIN32 only.
    @style{wxBU_RIGHT}:
           Right-justifies the bitmap label. WIN32 only.
    @style{wxBU_BOTTOM}:
           Aligns the bitmap label to the bottom of the button. WIN32 only.
    @endStyleTable

    @beginEventTable
    @event{EVT_BUTTON(id, func)}:
           Process a wxEVT_COMMAND_BUTTON_CLICKED event, when the button is
           clicked.
    @endEventTable

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

    @see wxButton
*/
class wxBitmapButton : public wxButton
{
public:
    //@{
    /**
        Constructor, creating and showing a button.
        
        @param parent
            Parent window. Must not be @NULL.
        @param id
            Button identifier. The value wxID_ANY indicates a default value.
        @param bitmap
            Bitmap to be displayed.
        @param pos
            Button position.
        @param size
            Button size. If wxDefaultSize is specified then the button is
        sized
            appropriately for the bitmap.
        @param style
            Window style. See wxBitmapButton.
        @param validator
            Window validator.
        @param name
            Window name.
        
        @remarks The bitmap parameter is normally the only bitmap you need to
                 provide, and wxWidgets will draw the button correctly
                 in its different states. If you want more control, call
                 any of the functions SetBitmapSelected(),
                 SetBitmapFocus(),
                 SetBitmapDisabled().
        
        @see Create(), wxValidator
    */
    wxBitmapButton();
    wxBitmapButton(wxWindow* parent, wxWindowID id,
                   const wxBitmap& bitmap,
                   const wxPoint& pos = wxDefaultPosition,
                   const wxSize& size = wxDefaultSize,
                   long style = wxBU_AUTODRAW,
                   const wxValidator& validator = wxDefaultValidator,
                   const wxString& name = "button");
    //@}

    /**
        Destructor, destroying the button.
    */
    ~wxBitmapButton();

    /**
        Button creation function for two-step creation. For more details, see
        wxBitmapButton().
    */
    bool Create(wxWindow* parent, wxWindowID id,
                const wxBitmap& bitmap,
                const wxPoint& pos,
                const wxSize& size = wxDefaultSize,
                long style = 0,
                const wxValidator& validator,
                const wxString& name = "button");

    //@{
    /**
        Returns the bitmap for the disabled state, may be invalid.
        
        @returns A reference to the disabled state bitmap.
        
        @see SetBitmapDisabled()
    */
    const wxBitmap GetBitmapDisabled();
    const wxBitmap&  GetBitmapDisabled();
    //@}

    //@{
    /**
        Returns the bitmap for the focused state, may be invalid.
        
        @returns A reference to the focused state bitmap.
        
        @see SetBitmapFocus()
    */
    const wxBitmap GetBitmapFocus();
    const wxBitmap&  GetBitmapFocus();
    //@}

    //@{
    /**
        Returns the bitmap used when the mouse is over the button, may be invalid.
        
        @see SetBitmapHover()
    */
    const wxBitmap GetBitmapHover();
    const wxBitmap&  GetBitmapHover();
    //@}

    //@{
    /**
        Returns the label bitmap (the one passed to the constructor), always valid.
        
        @returns A reference to the button's label bitmap.
        
        @see SetBitmapLabel()
    */
    const wxBitmap GetBitmapLabel();
    const wxBitmap&  GetBitmapLabel();
    //@}

    /**
        Returns the bitmap for the selected state.
        
        @returns A reference to the selected state bitmap.
        
        @see SetBitmapSelected()
    */
    wxBitmap GetBitmapSelected() const;

    /**
        Sets the bitmap for the disabled button appearance.
        
        @param bitmap
            The bitmap to set.
        
        @see GetBitmapDisabled(), SetBitmapLabel(),
             SetBitmapSelected(), SetBitmapFocus()
    */
    void SetBitmapDisabled(const wxBitmap& bitmap);

    /**
        Sets the bitmap for the button appearance when it has the keyboard focus.
        
        @param bitmap
            The bitmap to set.
        
        @see GetBitmapFocus(), SetBitmapLabel(),
             SetBitmapSelected(), SetBitmapDisabled()
    */
    void SetBitmapFocus(const wxBitmap& bitmap);

    /**
        Sets the bitmap to be shown when the mouse is over the button.
        
        @wxsince{2.7.0} and the hover bitmap is
        currently only supported in wxMSW.
        
        @see GetBitmapHover()
    */
    void SetBitmapHover(const wxBitmap& bitmap);

    /**
        Sets the bitmap label for the button.
        
        @param bitmap
            The bitmap label to set.
        
        @remarks This is the bitmap used for the unselected state, and for all
                 other states if no other bitmaps are provided.
        
        @see GetBitmapLabel()
    */
    void SetBitmapLabel(const wxBitmap& bitmap);

    /**
        Sets the bitmap for the selected (depressed) button appearance.
        
        @param bitmap
            The bitmap to set.
    */
    void SetBitmapSelected(const wxBitmap& bitmap);
};