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

/**
    @class wxCollapsiblePaneEvent
    @wxheader{collpane.h}

    This event class is used for the events generated by
    wxCollapsiblePane.

    @library{wxcore}
    @category{FIXME}

    @see wxCollapsiblePane
*/
class wxCollapsiblePaneEvent : public wxCommandEvent
{
public:
    /**
        The constructor is not normally used by the user code.
    */
    wxCollapsiblePaneEvent(wxObject* generator, int id,
                           bool collapsed);

    /**
        Returns @true if the pane has been collapsed.
    */
    bool GetCollapsed() const;

    /**
        Sets this as a collapsed pane event (if @a collapsed is @true) or as an
        expanded
        pane event (if @a collapsed is @false).
    */
    void SetCollapsed(bool collapsed);
};



/**
    @class wxCollapsiblePane
    @wxheader{collpane.h}

    A collapsible pane is a container with an embedded button-like control which
    can be
    used by the user to collapse or expand the pane's contents.

    Once constructed you should use the wxCollapsiblePane::GetPane
    function to access the pane and add your controls inside it (i.e. use the
    wxCollapsiblePane::GetPane's returned pointer as parent for the
    controls which must go in the pane, NOT the wxCollapsiblePane itself!).

    Note that because of its nature of control which can dynamically (and
    drastically)
    change its size at run-time under user-input, when putting wxCollapsiblePane
    inside
    a wxSizer you should be careful to add it with a proportion value
    of zero; this is because otherwise all other windows with non-null proportion
    values
    would automatically get resized each time the user expands or collapse the pane
    window
    resulting usually in a weird, flickering effect.

    Usage sample:

    @code
    wxCollapsiblePane *collpane = new wxCollapsiblePane(this, wxID_ANY,
    wxT("Details:"));

        // add the pane with a zero proportion value to the 'sz' sizer which
    contains it
        sz-Add(collpane, 0, wxGROW|wxALL, 5);

        // now add a test label in the collapsible pane using a sizer to layout it:
        wxWindow *win = collpane-GetPane();
        wxSizer *paneSz = new wxBoxSizer(wxVERTICAL);
        paneSz-Add(new wxStaticText(win, wxID_ANY, wxT("test!")), 1, wxGROW|wxALL,
    2);
        win-SetSizer(paneSz);
        paneSz-SetSizeHints(win);
    @endcode

    It is only available if @c wxUSE_COLLPANE is set to 1 (the default).

    @beginStyleTable
    @style{wxCP_DEFAULT_STYLE}:
           The default style: 0.
    @endStyleTable

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

    @see wxPanel, wxCollapsiblePaneEvent
*/
class wxCollapsiblePane : public wxControl
{
public:
    /**
        Initializes the object and calls Create() with
        all the parameters.
    */
    wxCollapsiblePane(wxWindow* parent, wxWindowID id,
                      const wxString& label,
                      const wxPoint& pos = wxDefaultPosition,
                      const wxSize& size = wxDefaultSize,
                      long style = wxCP_DEFAULT_STYLE,
                      const wxValidator& validator = wxDefaultValidator,
                      const wxString& name = "collapsiblePane");

    /**
        Collapses or expands the pane window.
    */
    void Collapse(bool collapse = true);

    /**
        @param parent
            Parent window, must not be non-@NULL.
        @param id
            The identifier for the control.
        @param label
            The initial label shown in the button which allows the user to expand or
        collapse the pane window.
        @param pos
            Initial position.
        @param size
            Initial size.
        @param style
            The window style, see wxCP_* flags.
        @param validator
            Validator which can be used for additional date checks.
        @param name
            Control name.
        
        @returns @true if the control was successfully created or @false if
                 creation failed.
    */
    bool Create(wxWindow* parent, wxWindowID id,
                const wxString& label,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = wxCP_DEFAULT_STYLE,
                const wxValidator& validator = wxDefaultValidator,
                const wxString& name = "collapsiblePane");

    /**
        Same as @c wxCollapsiblePane::Collapse(@false).
    */
    void Expand();

    /**
        Returns a pointer to the pane window. Add controls to the returned wxWindow
        to make them collapsible.
    */
    wxWindow* GetPane() const;

    /**
        Returns @true if the pane window is currently hidden.
    */
    bool IsCollapsed() const;

    /**
        Returns @true if the pane window is currently shown.
    */
    bool IsExpanded() const;
};