menucmn.cpp

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///////////////////////////////////////////////////////////////////////////////
// Name:        common/menucmn.cpp
// Purpose:     wxMenu and wxMenuBar methods common to all ports
// Author:      Vadim Zeitlin
// Modified by:
// Created:     26.10.99
// RCS-ID:      $Id: menucmn.cpp,v 1.54.2.1 2005/10/21 19:18:40 ABX Exp $
// Copyright:   (c) wxWidgets team
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

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

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

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_MENUS

#include <ctype.h>

#ifndef WX_PRECOMP
    #include "wx/intl.h"
    #include "wx/log.h"
    #include "wx/menu.h"
#endif

// ----------------------------------------------------------------------------
// template lists
// ----------------------------------------------------------------------------

#include "wx/listimpl.cpp"

WX_DEFINE_LIST(wxMenuList);
WX_DEFINE_LIST(wxMenuItemList);

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxMenuItem
// ----------------------------------------------------------------------------

wxMenuItemBase::wxMenuItemBase(wxMenu *parentMenu,
                               int id,
                               const wxString& text,
                               const wxString& help,
                               wxItemKind kind,
                               wxMenu *subMenu)
              : m_text(text),
                m_help(help)
{
    wxASSERT_MSG( parentMenu != NULL, wxT("menuitem should have a menu") );

    m_parentMenu  = parentMenu;
    m_subMenu     = subMenu;
    m_isEnabled   = true;
    m_isChecked   = false;
    m_id          = id;
    m_kind        = kind;
    if (m_id == wxID_ANY)
        m_id = wxNewId();
    if (m_id == wxID_SEPARATOR)
        m_kind = wxITEM_SEPARATOR;
}

wxMenuItemBase::~wxMenuItemBase()
{
    delete m_subMenu;
}

#if wxUSE_ACCEL

static inline bool CompareAccelString(const wxString& str, const wxChar *accel)
{
#if wxUSE_INTL
    return str == accel || str == wxGetTranslation(accel);
#else
    return str == accel;
#endif
}

// return wxAcceleratorEntry for the given menu string or NULL if none
// specified
wxAcceleratorEntry *wxGetAccelFromString(const wxString& label)
{
    // wxPrintf( wxT("label %s\n"), label.c_str() );

    // check for accelerators: they are given after '\t'
    int posTab = label.Find(wxT('\t'));
    if ( posTab != wxNOT_FOUND ) {
        // parse the accelerator string
        int keyCode = 0;
        int accelFlags = wxACCEL_NORMAL;
        wxString current;
        for ( size_t n = (size_t)posTab + 1; n < label.Len(); n++ ) {
            if ( (label[n] == '+') || (label[n] == '-') ) {
                if ( CompareAccelString(current, wxTRANSLATE("ctrl")) )
                    accelFlags |= wxACCEL_CTRL;
                else if ( CompareAccelString(current, wxTRANSLATE("alt")) )
                    accelFlags |= wxACCEL_ALT;
                else if ( CompareAccelString(current, wxTRANSLATE("shift")) )
                    accelFlags |= wxACCEL_SHIFT;
                else {
                    // we may have "Ctrl-+", for example, but we still want to
                    // catch typos like "Crtl-A" so only give the warning if we
                    // have something before the current '+' or '-', else take
                    // it as a literal symbol
                    if ( current.empty() )
                    {
                        current += label[n];

                        // skip clearing it below
                        continue;
                    }
                    else
                    {
                        wxLogDebug(wxT("Unknown accel modifier: '%s'"),
                                   current.c_str());
                    }
                }

                current.clear();
            }
            else {
                current += (wxChar) wxTolower(label[n]);
            }
        }

        if ( current.empty() ) {
            wxLogDebug(wxT("No accel key found, accel string ignored."));
        }
        else {
            if ( current.Len() == 1 ) {
                // it's a letter
                keyCode = current[0U];

                // Only call wxToupper if control, alt, or shift is held down,
                // otherwise lower case accelerators won't work.
                if (accelFlags != wxACCEL_NORMAL) {
                    keyCode = wxToupper(keyCode);
                }
            }
            else {
                // is it a function key?
                if ( current[0U] == 'f' && wxIsdigit(current[1U]) &&
                     (current.Len() == 2 ||
                     (current.Len() == 3 && wxIsdigit(current[2U]))) ) {
                    keyCode = WXK_F1 + wxAtoi(current.c_str() + 1) - 1;
                }
                else {
                    // several special cases
                    current.MakeUpper();
                    if ( current == wxT("DEL") )
                        keyCode = WXK_DELETE;
                    else if ( current == wxT("DELETE") )
                        keyCode = WXK_DELETE;
                    else if ( current == wxT("BACK") )
                        keyCode = WXK_BACK;
                    else if ( current == wxT("INS") )
                        keyCode = WXK_INSERT;
                    else if ( current == wxT("INSERT") )
                        keyCode = WXK_INSERT;
                    else if ( current == wxT("ENTER") || current == wxT("RETURN") )
                        keyCode = WXK_RETURN;
                    else if ( current == wxT("PGUP") )
                        keyCode = WXK_PRIOR;
                    else if ( current == wxT("PGDN") )
                        keyCode = WXK_NEXT;
                    else if ( current == wxT("LEFT") )
                        keyCode = WXK_LEFT;
                    else if ( current == wxT("RIGHT") )
                        keyCode = WXK_RIGHT;
                    else if ( current == wxT("UP") )
                        keyCode = WXK_UP;
                    else if ( current == wxT("DOWN") )
                        keyCode = WXK_DOWN;
                    else if ( current == wxT("HOME") )
                        keyCode = WXK_HOME;
                    else if ( current == wxT("END") )
                        keyCode = WXK_END;
                    else if ( current == wxT("SPACE") || current == _("SPACE") )
                        keyCode = WXK_SPACE;
                    else if ( current == wxT("TAB") )
                        keyCode = WXK_TAB;
                    else if ( current == wxT("ESC") || current == wxT("ESCAPE") )
                        keyCode = WXK_ESCAPE;
                    else if ( current == wxT("CANCEL") )
                        keyCode = WXK_CANCEL;
                    else if ( current == wxT("CLEAR") )
                        keyCode = WXK_CLEAR;
                    else if ( current == wxT("MENU") )
                        keyCode = WXK_MENU;
                    else if ( current == wxT("PAUSE") )
                        keyCode = WXK_PAUSE;
                    else if ( current == wxT("CAPITAL") )
                        keyCode = WXK_CAPITAL;
                    else if ( current == wxT("SELECT") )
                        keyCode = WXK_SELECT;
                    else if ( current == wxT("PRINT") )
                        keyCode = WXK_PRINT;
                    else if ( current == wxT("EXECUTE") )
                        keyCode = WXK_EXECUTE;
                    else if ( current == wxT("SNAPSHOT") )
                        keyCode = WXK_SNAPSHOT;
                    else if ( current == wxT("HELP") )
                        keyCode = WXK_HELP;
                    else if ( current == wxT("ADD") )
                        keyCode = WXK_ADD;
                    else if ( current == wxT("SEPARATOR") )
                        keyCode = WXK_SEPARATOR;
                    else if ( current == wxT("SUBTRACT") )
                        keyCode = WXK_SUBTRACT;
                    else if ( current == wxT("DECIMAL") )
                        keyCode = WXK_DECIMAL;
                    else if ( current == wxT("DIVIDE") )
                        keyCode = WXK_DIVIDE;
                    else if ( current == wxT("NUM_LOCK") )
                        keyCode = WXK_NUMLOCK;
                    else if ( current == wxT("SCROLL_LOCK") )
                        keyCode = WXK_SCROLL;
                    else if ( current == wxT("PAGEUP") )
                        keyCode = WXK_PAGEUP;
                    else if ( current == wxT("PAGEDOWN") )
                        keyCode = WXK_PAGEDOWN;
                    else if ( current == wxT("KP_SPACE") )
                        keyCode = WXK_NUMPAD_SPACE;
                    else if ( current == wxT("KP_TAB") )
                        keyCode = WXK_NUMPAD_TAB;
                    else if ( current == wxT("KP_ENTER") )
                        keyCode = WXK_NUMPAD_ENTER;
                    else if ( current == wxT("KP_HOME") )
                        keyCode = WXK_NUMPAD_HOME;
                    else if ( current == wxT("KP_LEFT") )
                        keyCode = WXK_NUMPAD_LEFT;
                    else if ( current == wxT("KP_UP") )
                        keyCode = WXK_NUMPAD_UP;
                    else if ( current == wxT("KP_RIGHT") )
                        keyCode = WXK_NUMPAD_RIGHT;
                    else if ( current == wxT("KP_DOWN") )
                        keyCode = WXK_NUMPAD_DOWN;
                    else if ( current == wxT("KP_PRIOR") )
                        keyCode = WXK_NUMPAD_PRIOR;
                    else if ( current == wxT("KP_PAGEUP") )
                        keyCode = WXK_NUMPAD_PAGEUP;
                    else if ( current == wxT("KP_NEXT;") )
                        keyCode = WXK_NUMPAD_NEXT;
                    else if ( current == wxT("KP_PAGEDOWN") )
                        keyCode = WXK_NUMPAD_PAGEDOWN;
                    else if ( current == wxT("KP_END") )
                        keyCode = WXK_NUMPAD_END;
                    else if ( current == wxT("KP_BEGIN") )
                        keyCode = WXK_NUMPAD_BEGIN;
                    else if ( current == wxT("KP_INSERT") )
                        keyCode = WXK_NUMPAD_INSERT;
                    else if ( current == wxT("KP_DELETE") )
                        keyCode = WXK_NUMPAD_DELETE;
                    else if ( current == wxT("KP_EQUAL") )
                        keyCode = WXK_NUMPAD_EQUAL;
                    else if ( current == wxT("KP_MULTIPLY") )
                        keyCode = WXK_NUMPAD_MULTIPLY;
                    else if ( current == wxT("KP_ADD") )
                        keyCode = WXK_NUMPAD_ADD;
                    else if ( current == wxT("KP_SEPARATOR") )
                        keyCode = WXK_NUMPAD_SEPARATOR;
                    else if ( current == wxT("KP_SUBTRACT") )
                        keyCode = WXK_NUMPAD_SUBTRACT;
                    else if ( current == wxT("KP_DECIMAL") )
                        keyCode = WXK_NUMPAD_DECIMAL;
                    else if ( current == wxT("KP_DIVIDE") )
                        keyCode = WXK_NUMPAD_DIVIDE;
                    else if ( current == wxT("WINDOWS_LEFT") )
                        keyCode = WXK_WINDOWS_LEFT;
                    else if ( current == wxT("WINDOWS_RIGHT") )
                        keyCode = WXK_WINDOWS_RIGHT;
                    else if ( current == wxT("WINDOWS_MENU") )
                        keyCode = WXK_WINDOWS_MENU;
                    else if ( current == wxT("COMMAND") )
                        keyCode = WXK_COMMAND;
                    else if ( current.Left(3) == wxT("KP_") && wxIsdigit(current[3U]) )
                        keyCode = WXK_NUMPAD0 + wxAtoi(current.c_str() + 3);
                    else if ( current.Left(7) == wxT("SPECIAL") && wxIsdigit(current[7U]) )
                        keyCode = WXK_SPECIAL1 + wxAtoi(current.c_str() + 7) - 1;
                    else
                    {
                        wxLogDebug(wxT("Unrecognized accel key '%s', accel string ignored."),
                                   current.c_str());
                        return NULL;
                    }
                }
            }
        }

        if ( keyCode ) {
            // we do have something
            return new wxAcceleratorEntry(accelFlags, keyCode);
        }
    }

    return (wxAcceleratorEntry *)NULL;
}

wxAcceleratorEntry *wxMenuItemBase::GetAccel() const
{
    return wxGetAccelFromString(GetText());
}

void wxMenuItemBase::SetAccel(wxAcceleratorEntry *accel)
{
    wxString text = m_text.BeforeFirst(wxT('\t'));
    if ( accel )
    {
        text += wxT('\t');

        int flags = accel->GetFlags();
        if ( flags & wxACCEL_ALT )
            text += wxT("Alt-");
        if ( flags & wxACCEL_CTRL )
            text += wxT("Ctrl-");
        if ( flags & wxACCEL_SHIFT )
            text += wxT("Shift-");

        int code = accel->GetKeyCode();
        switch ( code )
        {
            case WXK_F1:
            case WXK_F2:
            case WXK_F3:
            case WXK_F4:
            case WXK_F5:
            case WXK_F6:
            case WXK_F7:
            case WXK_F8:
            case WXK_F9:
            case WXK_F10:
            case WXK_F11:
            case WXK_F12:
                text << wxT('F') << code - WXK_F1 + 1;
                break;

            // if there are any other keys wxGetAccelFromString() may return,
            // we should process them here

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