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

/**
    @class wxIconBundle

    This class contains multiple copies of an icon in different sizes.
    It is typically used in wxDialog::SetIcons and wxTopLevelWindow::SetIcons.

    @library{wxcore}
    @category{gdi}

    @stdobjects
    ::wxNullIconBundle
*/
class wxIconBundle : public wxGDIObject
{
public:
    /**
        Default ctor.
    */
    wxIconBundle();

    /**
        Initializes the bundle with the icon(s) found in the file.
    */
    wxIconBundle(const wxString& file, wxBitmapType type);

    /**
        Initializes the bundle with a single icon.
    */
    wxIconBundle(const wxIcon& icon);

    /**
        Copy constructor.
    */
    wxIconBundle(const wxIconBundle& ic);

    /**
        Destructor.
    */
    virtual ~wxIconBundle();

    /**
        Adds all the icons contained in the file to the bundle; if the collection
        already contains icons with the same width and height, they are replaced
        by the new ones.
    */
    void AddIcon(const wxString& file, wxBitmapType type);

    /**
        Adds the icon to the collection; if the collection already
        contains an icon with the same width and height, it is
        replaced by the new one.
    */
    void AddIcon(const wxIcon& icon);

    /**
        Returns the icon with the given size; if no such icon exists, returns
        the icon with size @c wxSYS_ICON_X and @c wxSYS_ICON_Y; if no such icon
        exists, returns the first icon in the bundle.

        If size = wxDefaultSize, returns the icon with size @c wxSYS_ICON_X and
        @c wxSYS_ICON_Y.
    */
    wxIcon GetIcon(const wxSize& size) const;

    /**
        Same as @code GetIcon( wxSize( size, size ) ) @endcode.
    */
    const wxIcon  GetIcon(wxCoord size = -1) const;

    /**
        Returns the icon with exactly the given size or ::wxNullIcon if this
        size is not available.
    */
    wxIcon GetIconOfExactSize(const wxSize& size) const;

    /**
        Returns @true if the bundle doesn't contain any icons, @false otherwise
        (in which case a call to GetIcon() with default parameter should return
        a valid icon).
    */
    bool IsEmpty() const;

    /**
        Assignment operator, using @ref overview_refcount "reference counting".
    */
    wxIconBundle& operator=(const wxIconBundle& ic);

    /**
        Equality operator. This returns @true if two icon bundles are equal.
    */
    bool operator ==(const wxIconBundle& ic);

    /**
        Inequality operator. This returns true if two icon bundles are not equal.
    */
    bool operator !=(const wxIconBundle& ic);
};


/**
    An empty wxIconBundle.
*/
wxIconBundle wxNullIconBundle;