00b2a97f34
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11926 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
462 lines
15 KiB
C++
462 lines
15 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/menu.h
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// Purpose: wxMenu and wxMenuBar classes
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 26.10.99
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// RCS-ID: $Id$
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// Copyright: (c) wxWindows team
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// Licence: wxWindows license
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_MENU_H_BASE_
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#define _WX_MENU_H_BASE_
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#ifdef __GNUG__
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#pragma interface "menubase.h"
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#endif
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#if wxUSE_MENUS
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/list.h" // for "template" list classes
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#include "wx/window.h" // base class for wxMenuBar
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// also include this one to ensure compatibility with old code which only
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// included wx/menu.h
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#include "wx/menuitem.h"
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class WXDLLEXPORT wxMenu;
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class WXDLLEXPORT wxMenuBarBase;
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class WXDLLEXPORT wxMenuBar;
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class WXDLLEXPORT wxMenuItem;
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// pseudo template list classes
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WX_DECLARE_EXPORTED_LIST(wxMenu, wxMenuList);
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WX_DECLARE_EXPORTED_LIST(wxMenuItem, wxMenuItemList);
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// ----------------------------------------------------------------------------
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// conditional compilation
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// ----------------------------------------------------------------------------
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// having callbacks in menus is a wxWin 1.6x feature which should be replaced
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// with event tables in wxWin 2.xx code - however provide it because many
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// people like it a lot by default
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#ifndef wxUSE_MENU_CALLBACK
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#if WXWIN_COMPATIBILITY_2
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#define wxUSE_MENU_CALLBACK 1
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#else
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#define wxUSE_MENU_CALLBACK 0
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#endif // WXWIN_COMPATIBILITY_2
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#endif // !defined(wxUSE_MENU_CALLBACK)
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// ----------------------------------------------------------------------------
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// wxMenu
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxMenuBase : public wxEvtHandler
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{
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public:
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// create a menu
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static wxMenu *New(const wxString& title = wxEmptyString, long style = 0);
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// ctors
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wxMenuBase(const wxString& title, long style = 0) : m_title(title)
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{ Init(style); }
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wxMenuBase(long style = 0)
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{ Init(style); }
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// dtor deletes all the menu items we own
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virtual ~wxMenuBase();
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// menu construction
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// -----------------
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// append a normal item to the menu
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void Append(int id,
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const wxString& text,
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const wxString& help = wxEmptyString,
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bool isCheckable = FALSE)
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{
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DoAppend(wxMenuItem::New((wxMenu *)this, id, text, help, isCheckable));
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}
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// append a separator to the menu
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void AppendSeparator() { Append(wxID_SEPARATOR, wxEmptyString); }
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// append a submenu
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void Append(int id,
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const wxString& text,
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wxMenu *submenu,
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const wxString& help = wxEmptyString)
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{
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DoAppend(wxMenuItem::New((wxMenu *)this, id, text, help, FALSE, submenu));
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}
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// the most generic form of Append() - append anything
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void Append(wxMenuItem *item) { DoAppend(item); }
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// insert a break in the menu (only works when appending the items, not
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// inserting them)
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virtual void Break() { }
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// insert an item before given position
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bool Insert(size_t pos, wxMenuItem *item);
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void Insert(size_t pos,
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int id,
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const wxString& text,
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const wxString& help = wxEmptyString,
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bool isCheckable = FALSE)
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{
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Insert(pos, wxMenuItem::New((wxMenu *)this, id, text, help, isCheckable));
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}
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// insert a separator
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void InsertSeparator(size_t pos)
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{
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Insert(pos, wxMenuItem::New((wxMenu *)this));
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}
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// insert a submenu
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void Insert(size_t pos,
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int id,
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const wxString& text,
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wxMenu *submenu,
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const wxString& help = wxEmptyString)
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{
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Insert(pos, wxMenuItem::New((wxMenu *)this, id, text, help, FALSE, submenu));
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}
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// prepend an item to the menu
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void Prepend(wxMenuItem *item)
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{
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Insert(0u, item);
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}
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void Prepend(int id,
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const wxString& text,
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const wxString& help = wxEmptyString,
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bool isCheckable = FALSE)
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{
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Insert(0u, id, text, help, isCheckable);
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}
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// insert a separator
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void PrependSeparator()
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{
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InsertSeparator(0u);
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}
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// insert a submenu
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void Prepend(int id,
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const wxString& text,
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wxMenu *submenu,
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const wxString& help = wxEmptyString)
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{
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Insert(0u, id, text, submenu, help);
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}
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// detach an item from the menu, but don't delete it so that it can be
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// added back later (but if it's not, the caller is responsible for
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// deleting it!)
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wxMenuItem *Remove(int id) { return Remove(FindChildItem(id)); }
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wxMenuItem *Remove(wxMenuItem *item);
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// delete an item from the menu (submenus are not destroyed by this
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// function, see Destroy)
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bool Delete(int id) { return Delete(FindChildItem(id)); }
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bool Delete(wxMenuItem *item);
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// delete the item from menu and destroy it (if it's a submenu)
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bool Destroy(int id) { return Destroy(FindChildItem(id)); }
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bool Destroy(wxMenuItem *item);
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// menu items access
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// -----------------
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// get the items
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size_t GetMenuItemCount() const { return m_items.GetCount(); }
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const wxMenuItemList& GetMenuItems() const { return m_items; }
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wxMenuItemList& GetMenuItems() { return m_items; }
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// search
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virtual int FindItem(const wxString& item) const;
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wxMenuItem* FindItem(int id, wxMenu **menu = NULL) const;
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// get/set items attributes
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void Enable(int id, bool enable);
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bool IsEnabled(int id) const;
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void Check(int id, bool check);
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bool IsChecked(int id) const;
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void SetLabel(int id, const wxString& label);
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wxString GetLabel(int id) const;
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virtual void SetHelpString(int id, const wxString& helpString);
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virtual wxString GetHelpString(int id) const;
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// misc accessors
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// --------------
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// the title
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virtual void SetTitle(const wxString& title) { m_title = title; }
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const wxString GetTitle() const { return m_title; }
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// event handler
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void SetEventHandler(wxEvtHandler *handler) { m_eventHandler = handler; }
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wxEvtHandler *GetEventHandler() const { return m_eventHandler; }
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// invoking window
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void SetInvokingWindow(wxWindow *win) { m_invokingWindow = win; }
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wxWindow *GetInvokingWindow() const { return m_invokingWindow; }
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// style
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long GetStyle() const { return m_style; }
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// implementation helpers
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// ----------------------
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// Updates the UI for a menu and all submenus recursively. source is the
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// object that has the update event handlers defined for it. If NULL, the
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// menu or associated window will be used.
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void UpdateUI(wxEvtHandler* source = (wxEvtHandler*)NULL);
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// get the menu bar this menu is attached to (may be NULL, always NULL for
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// popup menus)
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wxMenuBar *GetMenuBar() const { return m_menuBar; }
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// called when the menu is attached/detached to/from a menu bar
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virtual void Attach(wxMenuBarBase *menubar);
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virtual void Detach();
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// is the menu attached to a menu bar (or is it a popup one)?
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bool IsAttached() const { return m_menuBar != NULL; }
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// set/get the parent of this menu
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void SetParent(wxMenu *parent) { m_menuParent = parent; }
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wxMenu *GetParent() const { return m_menuParent; }
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#if WXWIN_COMPATIBILITY
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// compatibility: these functions are deprecated, use the new ones instead
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bool Enabled(int id) const { return IsEnabled(id); }
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bool Checked(int id) const { return IsChecked(id); }
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wxMenuItem* FindItemForId(int itemId, wxMenu **itemMenu) const
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{ return FindItem(itemId, itemMenu); }
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wxList& GetItems() const { return (wxList &)m_items; }
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#endif // WXWIN_COMPATIBILITY
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#if wxUSE_MENU_CALLBACK || defined(__WXMOTIF__)
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// wxWin 1.6x compatible menu event handling
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wxFunction GetCallback() const { return m_callback; }
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void Callback(const wxFunction func) { m_callback = func; }
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wxFunction m_callback;
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#endif // wxUSE_MENU_CALLBACK
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// unlike FindItem(), this function doesn't recurse but only looks through
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// our direct children and also may return the index of the found child if
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// pos != NULL
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wxMenuItem *FindChildItem(int id, size_t *pos = NULL) const;
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// called to generate a wxCommandEvent, return TRUE if it was processed,
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// FALSE otherwise
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//
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// the checked parameter may have boolean value or -1 for uncheckable items
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bool SendEvent(int id, int checked = -1);
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protected:
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// virtuals to override in derived classes
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// ---------------------------------------
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virtual bool DoAppend(wxMenuItem *item);
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virtual bool DoInsert(size_t pos, wxMenuItem *item);
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virtual wxMenuItem *DoRemove(wxMenuItem *item);
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virtual bool DoDelete(wxMenuItem *item);
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virtual bool DoDestroy(wxMenuItem *item);
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// helpers
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// -------
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// common part of all ctors
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void Init(long style);
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// associate the submenu with this menu
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void AddSubMenu(wxMenu *submenu);
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wxMenuBar *m_menuBar; // menubar we belong to or NULL
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wxMenu *m_menuParent; // parent menu or NULL
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wxString m_title; // the menu title or label
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wxMenuItemList m_items; // the list of menu items
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wxWindow *m_invokingWindow; // for popup menus
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long m_style; // combination of wxMENU_XXX flags
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wxEvtHandler *m_eventHandler; // a pluggable in event handler
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};
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// ----------------------------------------------------------------------------
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// wxMenuBar
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxMenuBarBase : public wxWindow
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{
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public:
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// default ctor
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wxMenuBarBase();
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// dtor will delete all menus we own
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virtual ~wxMenuBarBase();
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// menu bar construction
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// ---------------------
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// append a menu to the end of menubar, return TRUE if ok
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virtual bool Append(wxMenu *menu, const wxString& title);
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// insert a menu before the given position into the menubar, return TRUE
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// if inserted ok
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virtual bool Insert(size_t pos, wxMenu *menu, const wxString& title);
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// menu bar items access
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// ---------------------
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// get the number of menus in the menu bar
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size_t GetMenuCount() const { return m_menus.GetCount(); }
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// get the menu at given position
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wxMenu *GetMenu(size_t pos) const;
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// replace the menu at given position with another one, returns the
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// previous menu (which should be deleted by the caller)
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virtual wxMenu *Replace(size_t pos, wxMenu *menu, const wxString& title);
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// delete the menu at given position from the menu bar, return the pointer
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// to the menu (which should be deleted by the caller)
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virtual wxMenu *Remove(size_t pos);
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// enable or disable a submenu
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virtual void EnableTop(size_t pos, bool enable) = 0;
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// is the menu enabled?
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virtual bool IsEnabledTop(size_t WXUNUSED(pos)) const { return TRUE; }
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// get or change the label of the menu at given position
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virtual void SetLabelTop(size_t pos, const wxString& label) = 0;
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virtual wxString GetLabelTop(size_t pos) const = 0;
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// item search
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// -----------
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// by menu and item names, returns wxNOT_FOUND if not found or id of the
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// found item
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virtual int FindMenuItem(const wxString& menu, const wxString& item) const;
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// find item by id (in any menu), returns NULL if not found
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//
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// if menu is !NULL, it will be filled with wxMenu this item belongs to
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virtual wxMenuItem* FindItem(int id, wxMenu **menu = NULL) const;
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// find menu by its caption, return wxNOT_FOUND on failure
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int FindMenu(const wxString& title) const;
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// item access
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// -----------
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// all these functions just use FindItem() and then call an appropriate
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// method on it
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//
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// NB: under MSW, these methods can only be used after the menubar had
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// been attached to the frame
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void Enable(int id, bool enable);
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void Check(int id, bool check);
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bool IsChecked(int id) const;
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bool IsEnabled(int id) const;
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void SetLabel(int id, const wxString &label);
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wxString GetLabel(int id) const;
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void SetHelpString(int id, const wxString& helpString);
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wxString GetHelpString(int id) const;
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// implementation helpers
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// get the frame we are attached to (may return NULL)
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wxFrame *GetFrame() const { return m_menuBarFrame; }
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// returns TRUE if we're attached to a frame
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bool IsAttached() const { return GetFrame() != NULL; }
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// associate the menubar with the frame
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virtual void Attach(wxFrame *frame);
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// called before deleting the menubar normally
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virtual void Detach();
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// need to override these ones to avoid virtual function hiding
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virtual bool Enable(bool enable = TRUE) { return wxWindow::Enable(enable); }
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virtual void SetLabel(const wxString& s) { wxWindow::SetLabel(s); }
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virtual wxString GetLabel() const { return wxWindow::GetLabel(); }
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// don't want menu bars to accept the focus by tabbing to them
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virtual bool AcceptsFocusFromKeyboard() const { return FALSE; }
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// compatibility only: these functions are deprecated, use the new ones
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// instead
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#if WXWIN_COMPATIBILITY
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bool Enabled(int id) const { return IsEnabled(id); }
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bool Checked(int id) const { return IsChecked(id); }
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wxMenuItem* FindMenuItemById(int id) const
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{ return FindItem(id); }
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wxMenuItem* FindItemForId(int id, wxMenu **menu = NULL) const
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{ return FindItem(id, menu); }
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#endif // WXWIN_COMPATIBILITY
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protected:
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// the list of all our menus
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wxMenuList m_menus;
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// the frame we are attached to (may be NULL)
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wxFrame *m_menuBarFrame;
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};
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// ----------------------------------------------------------------------------
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// include the real class declaration
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// ----------------------------------------------------------------------------
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#ifdef wxUSE_BASE_CLASSES_ONLY
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#define wxMenuItem wxMenuItemBase
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#else // !wxUSE_BASE_CLASSES_ONLY
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#if defined(__WXUNIVERSAL__)
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#include "wx/univ/menu.h"
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#elif defined(__WXMSW__)
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#include "wx/msw/menu.h"
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#elif defined(__WXMOTIF__)
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#include "wx/motif/menu.h"
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#elif defined(__WXGTK__)
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#include "wx/gtk/menu.h"
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#elif defined(__WXMAC__)
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#include "wx/mac/menu.h"
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#elif defined(__WXPM__)
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#include "wx/os2/menu.h"
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#elif defined(__WXSTUBS__)
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#include "wx/stubs/menu.h"
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#endif
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#endif // wxUSE_BASE_CLASSES_ONLY/!wxUSE_BASE_CLASSES_ONLY
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#endif // wxUSE_MENUS
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#endif
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// _WX_MENU_H_BASE_
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