menu.h

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///////////////////////////////////////////////////////////////////////////////
// Name:        wx/menu.h
// Purpose:     wxMenu and wxMenuBar classes
// Author:      Vadim Zeitlin
// Modified by:
// Created:     26.10.99
// RCS-ID:      $Id: menu.h,v 1.43 2005/01/24 11:14:09 ABX Exp $
// Copyright:   (c) wxWidgets team
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

#ifndef _WX_MENU_H_BASE_
#define _WX_MENU_H_BASE_

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
    #pragma interface "menubase.h"
#endif

#include "wx/defs.h"

#if wxUSE_MENUS

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#include "wx/list.h"        // for "template" list classes
#include "wx/window.h"      // base class for wxMenuBar

// also include this one to ensure compatibility with old code which only
// included wx/menu.h
#include "wx/menuitem.h"

class WXDLLEXPORT wxMenu;
class WXDLLEXPORT wxMenuBarBase;
class WXDLLEXPORT wxMenuBar;
class WXDLLEXPORT wxMenuItem;

// pseudo template list classes
WX_DECLARE_EXPORTED_LIST(wxMenu, wxMenuList);
WX_DECLARE_EXPORTED_LIST(wxMenuItem, wxMenuItemList);

// ----------------------------------------------------------------------------
// wxMenu
// ----------------------------------------------------------------------------

class WXDLLEXPORT wxMenuBase : public wxEvtHandler
{
public:
    // create a menu
    static wxMenu *New(const wxString& title = wxEmptyString, long style = 0);

    // ctors
    wxMenuBase(const wxString& title, long style = 0) : m_title(title)
        { Init(style); }
    wxMenuBase(long style = 0)
        { Init(style); }

    // dtor deletes all the menu items we own
    virtual ~wxMenuBase();

    // menu construction
    // -----------------

    // append any kind of item (normal/check/radio/separator)
    wxMenuItem* Append(int itemid,
                       const wxString& text,
                       const wxString& help = wxEmptyString,
                       wxItemKind kind = wxITEM_NORMAL)
    {
        return DoAppend(wxMenuItem::New((wxMenu *)this, itemid, text, help, kind));
    }

    // append a separator to the menu
    wxMenuItem* AppendSeparator() { return Append(wxID_SEPARATOR, wxEmptyString); }

    // append a check item
    wxMenuItem* AppendCheckItem(int itemid,
                                const wxString& text,
                                const wxString& help = wxEmptyString)
    {
        return Append(itemid, text, help, wxITEM_CHECK);
    }

    // append a radio item
    wxMenuItem* AppendRadioItem(int itemid,
                                const wxString& text,
                                const wxString& help = wxEmptyString)
    {
        return Append(itemid, text, help, wxITEM_RADIO);
    }

    // append a submenu
    wxMenuItem* Append(int itemid,
                       const wxString& text,
                       wxMenu *submenu,
                       const wxString& help = wxEmptyString)
    {
        return DoAppend(wxMenuItem::New((wxMenu *)this, itemid, text, help,
                                        wxITEM_NORMAL, submenu));
    }

    // the most generic form of Append() - append anything
    wxMenuItem* Append(wxMenuItem *item) { return DoAppend(item); }

    // insert a break in the menu (only works when appending the items, not
    // inserting them)
    virtual void Break() { }

    // insert an item before given position
    wxMenuItem* Insert(size_t pos, wxMenuItem *item);

    // insert an item before given position
    wxMenuItem* Insert(size_t pos,
                       int itemid,
                       const wxString& text,
                       const wxString& help = wxEmptyString,
                       wxItemKind kind = wxITEM_NORMAL)
    {
        return Insert(pos, wxMenuItem::New((wxMenu *)this, itemid, text, help, kind));
    }

    // insert a separator
    wxMenuItem* InsertSeparator(size_t pos)
    {
        return Insert(pos, wxMenuItem::New((wxMenu *)this, wxID_SEPARATOR));
    }

    // insert a check item
    wxMenuItem* InsertCheckItem(size_t pos,
                                int itemid,
                                const wxString& text,
                                const wxString& help = wxEmptyString)
    {
        return Insert(pos, itemid, text, help, wxITEM_CHECK);
    }

    // insert a radio item
     wxMenuItem* InsertRadioItem(size_t pos,
                                 int itemid,
                                 const wxString& text,
                                 const wxString& help = wxEmptyString)
    {
        return Insert(pos, itemid, text, help, wxITEM_RADIO);
    }

    // insert a submenu
    wxMenuItem* Insert(size_t pos,
                       int itemid,
                       const wxString& text,
                       wxMenu *submenu,
                       const wxString& help = wxEmptyString)
    {
        return Insert(pos, wxMenuItem::New((wxMenu *)this, itemid, text, help,
                                           wxITEM_NORMAL, submenu));
    }

    // prepend an item to the menu
    wxMenuItem* Prepend(wxMenuItem *item)
    {
        return Insert(0u, item);
    }

    // prepend any item to the menu
    wxMenuItem* Prepend(int itemid,
                        const wxString& text,
                        const wxString& help = wxEmptyString,
                        wxItemKind kind = wxITEM_NORMAL)
    {
        return Insert(0u, itemid, text, help, kind);
    }

    // prepend a separator
    wxMenuItem* PrependSeparator()
    {
        return InsertSeparator(0u);
    }

    // prepend a check item
    wxMenuItem* PrependCheckItem(int itemid,
                                 const wxString& text,
                                 const wxString& help = wxEmptyString)
    {
        return InsertCheckItem(0u, itemid, text, help);
    }

    // prepend a radio item
    wxMenuItem* PrependRadioItem(int itemid,
                                 const wxString& text,
                                 const wxString& help = wxEmptyString)
    {
        return InsertRadioItem(0u, itemid, text, help);
    }

    // prepend a submenu
    wxMenuItem* Prepend(int itemid,
                        const wxString& text,
                        wxMenu *submenu,
                        const wxString& help = wxEmptyString)
    {
        return Insert(0u, itemid, text, submenu, help);
    }

    // detach an item from the menu, but don't delete it so that it can be
    // added back later (but if it's not, the caller is responsible for
    // deleting it!)
    wxMenuItem *Remove(int itemid) { return Remove(FindChildItem(itemid)); }
    wxMenuItem *Remove(wxMenuItem *item);

    // delete an item from the menu (submenus are not destroyed by this
    // function, see Destroy)
    bool Delete(int itemid) { return Delete(FindChildItem(itemid)); }
    bool Delete(wxMenuItem *item);

    // delete the item from menu and destroy it (if it's a submenu)
    bool Destroy(int itemid) { return Destroy(FindChildItem(itemid)); }
    bool Destroy(wxMenuItem *item);

    // menu items access
    // -----------------

    // get the items
    size_t GetMenuItemCount() const { return m_items.GetCount(); }

    const wxMenuItemList& GetMenuItems() const { return m_items; }
    wxMenuItemList& GetMenuItems() { return m_items; }

    // search
    virtual int FindItem(const wxString& item) const;
    wxMenuItem* FindItem(int itemid, wxMenu **menu = NULL) const;

    // find by position
    wxMenuItem* FindItemByPosition(size_t position) const;

    // get/set items attributes
    void Enable(int itemid, bool enable);
    bool IsEnabled(int itemid) const;

    void Check(int itemid, bool check);
    bool IsChecked(int itemid) const;

    void SetLabel(int itemid, const wxString& label);
    wxString GetLabel(int itemid) const;

    virtual void SetHelpString(int itemid, const wxString& helpString);
    virtual wxString GetHelpString(int itemid) const;

    // misc accessors
    // --------------

    // the title
    virtual void SetTitle(const wxString& title) { m_title = title; }
    const wxString GetTitle() const { return m_title; }

    // event handler
    void SetEventHandler(wxEvtHandler *handler) { m_eventHandler = handler; }
    wxEvtHandler *GetEventHandler() const { return m_eventHandler; }

    // invoking window
    void SetInvokingWindow(wxWindow *win) { m_invokingWindow = win; }
    wxWindow *GetInvokingWindow() const { return m_invokingWindow; }