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63dcfc151b7977b7d2cd4095cfdd3421936e0d81
wxWidgets/src/msw/menu.cpp
Vadim Zeitlin 1a5e297c6b wxMenuBar::IsEnabled() now returns TRUE sometimes too 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3350 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-08-11 22:54:28 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: menu.cpp
// Purpose: wxMenu, wxMenuBar, wxMenuItem
// Author: Julian Smart
// Modified by: Vadim Zeitlin
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// declarations
// ===========================================================================
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "menu.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/frame.h"
#include "wx/menu.h"
#include "wx/utils.h"
#include "wx/intl.h"
#endif
#if wxUSE_OWNER_DRAWN
#include "wx/ownerdrw.h"
#endif
#include "wx/msw/private.h"
#include "wx/msw/menu.h"
#include "wx/menuitem.h"
#include "wx/log.h"
// other standard headers
#include <string.h>
// ----------------------------------------------------------------------------
// global variables
// ----------------------------------------------------------------------------
extern wxMenu *wxCurrentPopupMenu;
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// the (popup) menu title has this special id
static const int idMenuTitle = -2;
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler)
IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxEvtHandler)
#endif
// ============================================================================
// implementation
// ============================================================================
// ---------------------------------------------------------------------------
// wxMenu construction, adding and removing menu items
// ---------------------------------------------------------------------------
// Construct a menu with optional title (then use append)
void wxMenu::Init(const wxString& title, const wxFunction func )
{
m_title = title;
m_parent = NULL;
m_eventHandler = this;
m_pInvokingWindow = NULL;
m_doBreak = FALSE ;
m_noItems = 0;
m_menuBar = NULL;
m_hMenu = (WXHMENU) CreatePopupMenu();
m_savehMenu = 0 ;
m_topLevelMenu = this;
m_clientData = (void*) NULL;
if ( !!m_title )
{
Append(idMenuTitle, m_title) ;
AppendSeparator() ;
}
Callback(func);
}
// The wxWindow destructor will take care of deleting the submenus.
wxMenu::~wxMenu()
{
// free Windows resources
if ( m_hMenu )
{
::DestroyMenu((HMENU)m_hMenu);
m_hMenu = 0;
}
// delete submenus
wxNode *node = m_menuItems.First();
while ( node )
{
wxMenuItem *item = (wxMenuItem *)node->Data();
// Delete child menus.
// Beware: they must not be appended to children list!!!
// (because order of delete is significant)
if ( item->IsSubMenu() )
item->DeleteSubMenu();
wxNode *next = node->Next();
delete item;
delete node;
node = next;
}
}
void wxMenu::Break()
{
m_doBreak = TRUE;
}
// function appends a new item or submenu to the menu
void wxMenu::Append(wxMenuItem *pItem)
{
wxCHECK_RET( pItem != NULL, _T("can't append NULL item to the menu") );
#if wxUSE_ACCEL
// check for accelerators: they are given after '\t'
wxString label = pItem->GetName();
int posTab = label.Find(_T('\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 ( current == _("ctrl") )
accelFlags |= wxACCEL_CTRL;
else if ( current == _("alt") )
accelFlags |= wxACCEL_ALT;
else if ( current == _("shift") )
accelFlags |= wxACCEL_SHIFT;
else {
wxLogDebug(_T("Unknown accel modifier: '%s'"),
current.c_str());
}
current.Empty();
}
else {
current += wxTolower(label[n]);
}
}
if ( current.IsEmpty() ) {
wxLogDebug(_T("No accel key found, accel string ignored."));
}
else {
if ( current.Len() == 1 ) {
// it's a letter
keyCode = wxToupper(current[0U]);
}
else {
// it should be a function key
if ( current[0U] == 'f' && isdigit(current[1U]) &&
(current.Len() == 2 ||
(current.Len() == 3 && isdigit(current[2U]))) ) {
int n;
wxSscanf(current.c_str() + 1, _T("%d"), &n);
keyCode = VK_F1 + n - 1;
}
else {
wxLogDebug(_T("Unrecognized accel key '%s', accel "
"string ignored."), current.c_str());
}
}
}
if ( keyCode ) {
// do add an entry
m_accelKeyCodes.Add(keyCode);
m_accelFlags.Add(accelFlags);
m_accelIds.Add(pItem->GetId());
}
}
#endif // wxUSE_ACCEL
UINT flags = 0;
// if "Break" has just been called, insert a menu break before this item
// (and don't forget to reset the flag)
if ( m_doBreak ) {
flags |= MF_MENUBREAK;
m_doBreak = FALSE;
}
if ( pItem->IsSeparator() ) {
flags |= MF_SEPARATOR;
}
// id is the numeric id for normal menu items and HMENU for submenus as
// required by ::AppendMenu() API
UINT id;
wxMenu *submenu = pItem->GetSubMenu();
if ( submenu != NULL ) {
wxASSERT( submenu->GetHMenu() != (WXHMENU) NULL );
id = (UINT)submenu->GetHMenu();
submenu->m_topLevelMenu = m_topLevelMenu;
submenu->m_parent = this;
submenu->m_savehMenu = (WXHMENU)id;
submenu->m_hMenu = 0;
flags |= MF_POPUP;
}
else {
id = pItem->GetId();
}
LPCTSTR pData;
#if wxUSE_OWNER_DRAWN
if ( pItem->IsOwnerDrawn() ) { // want to get {Measure|Draw}Item messages?
// item draws itself, pass pointer to it in data parameter
flags |= MF_OWNERDRAW;
pData = (LPCTSTR)pItem;
}
else
#endif
{
// menu is just a normal string (passed in data parameter)
flags |= MF_STRING;
pData = label;
}
if ( !::AppendMenu(GetHmenu(), flags, id, pData) )
{
wxLogLastError("AppendMenu");
}
else
{
#ifdef __WIN32__
if ( id == idMenuTitle )
{
// visually select the menu title
MENUITEMINFO mii;
mii.cbSize = sizeof(mii);
mii.fMask = MIIM_STATE;
mii.fState = MFS_DEFAULT;
if ( !SetMenuItemInfo(GetHmenu(), (unsigned)id, FALSE, &mii) )
{
wxLogLastError(_T("SetMenuItemInfo"));
}
}
#endif // __WIN32__
m_menuItems.Append(pItem);
m_noItems++;
}
}
void wxMenu::AppendSeparator()
{
Append(new wxMenuItem(this, ID_SEPARATOR));
}
// Pullright item
void wxMenu::Append(int id,
const wxString& label,
wxMenu *SubMenu,
const wxString& helpString)
{
Append(new wxMenuItem(this, id, label, helpString, FALSE, SubMenu));
}
// Ordinary menu item
void wxMenu::Append(int id,
const wxString& label,
const wxString& helpString,
bool checkable)
{
// 'checkable' parameter is useless for Windows.
Append(new wxMenuItem(this, id, label, helpString, checkable));
}
// delete item by id
void wxMenu::Delete(int id)
{
wxMenuItem *item = NULL;
int pos;
wxNode *node;
for (pos = 0, node = m_menuItems.First(); node; node = node->Next(), pos++)
{
item = (wxMenuItem *)node->Data();
if ( item->GetId() == id )
break;
}
wxCHECK_RET( node, _T("wxMenu::Delete(): item doesn't exist") );
HMENU menu = GetHmenu();
wxMenu *pSubMenu = item->GetSubMenu();
if ( pSubMenu != NULL ) {
RemoveMenu(menu, (UINT)pos, MF_BYPOSITION);
pSubMenu->m_hMenu = pSubMenu->m_savehMenu;
pSubMenu->m_savehMenu = 0;
pSubMenu->m_parent = NULL;
// RemoveChild(item->subMenu);
pSubMenu->m_topLevelMenu = NULL;
// TODO: Why isn't subMenu deleted here???
// Will put this in for now. Assuming this is supposed
// to delete the menu, not just remove it.
item->DeleteSubMenu();
}
else {
DeleteMenu(menu, (UINT)pos, MF_BYPOSITION);
}
m_menuItems.DeleteNode(node);
delete item;
}
#if wxUSE_ACCEL
// ---------------------------------------------------------------------------
// accelerator helpers
// ---------------------------------------------------------------------------
// create the wxAcceleratorEntries for our accels and put them into provided
// array - return the number of accels we have
size_t wxMenu::CopyAccels(wxAcceleratorEntry *accels) const
{
size_t count = GetAccelCount();
for ( size_t n = 0; n < count; n++ )
{
(*accels++).Set(m_accelFlags[n], m_accelKeyCodes[n], m_accelIds[n]);
}
return count;
}
#endif // wxUSE_ACCEL
// ---------------------------------------------------------------------------
// wxMenu functions implemented in wxMenuItem
// ---------------------------------------------------------------------------
void wxMenu::Enable(int id, bool Flag)
{
wxMenuItem *item = FindItemForId(id);
wxCHECK_RET( item != NULL, _T("can't enable non-existing menu item") );
item->Enable(Flag);
}
bool wxMenu::IsEnabled(int id) const
{
wxMenuItem *item = FindItemForId(id);
wxCHECK_MSG( item != NULL, FALSE, _T("invalid item id") );
return item->IsEnabled();
}
void wxMenu::Check(int id, bool Flag)
{
wxMenuItem *item = FindItemForId(id);
wxCHECK_RET( item != NULL, _T("can't get status of non-existing menu item") );
item->Check(Flag);
}
bool wxMenu::IsChecked(int id) const
{
wxMenuItem *item = FindItemForId(id);
wxCHECK_MSG( item != NULL, FALSE, _T("invalid item id") );
return item->IsChecked();
}
void wxMenu::SetLabel(int id, const wxString& label)
{
wxMenuItem *item = FindItemForId(id) ;
wxCHECK_RET( item, _T("wxMenu::SetLabel: no such item") );
item->SetName(label);
}
wxString wxMenu::GetLabel(int id) const
{
wxString label;
wxMenuItem *pItem = FindItemForId(id) ;
if (pItem)
label = pItem->GetName() ;
else
wxFAIL_MSG(_T("wxMenu::GetLabel: item doesn't exist"));
return label;
}
void wxMenu::SetHelpString(int itemId, const wxString& helpString)
{
wxMenuItem *item = FindItemForId (itemId);
if (item)
item->SetHelp(helpString);
else
wxFAIL_MSG(_T("wxMenu::SetHelpString: item doesn't exist"));
}
wxString wxMenu::GetHelpString (int itemId) const
{
wxString help;
wxMenuItem *item = FindItemForId (itemId);
if (item)
help = item->GetHelp();
else
wxFAIL_MSG(_T("wxMenu::GetHelpString: item doesn't exist"));
return help;
}
// ---------------------------------------------------------------------------
// wxMenu title
// ---------------------------------------------------------------------------
void wxMenu::SetTitle(const wxString& label)
{
bool hasNoTitle = m_title.IsEmpty();
m_title = label;
HMENU hMenu = GetHmenu();
if ( hasNoTitle )
{
if ( !label.IsEmpty() )
{
if ( !InsertMenu(hMenu, 0u, MF_BYPOSITION | MF_STRING,
(unsigned)idMenuTitle, m_title) ||
!InsertMenu(hMenu, 1u, MF_BYPOSITION, (unsigned)-1, NULL) )
{
wxLogLastError(_T("InsertMenu"));
}
}
}
else
{
if ( label.IsEmpty() )
{
// remove the title and the separator after it
if ( !RemoveMenu(hMenu, 0, MF_BYPOSITION) ||
!RemoveMenu(hMenu, 0, MF_BYPOSITION) )
{
wxLogLastError("RemoveMenu");
}
}
else
{
// modify the title
if ( !ModifyMenu(hMenu, 0u,
MF_BYPOSITION | MF_STRING,
(unsigned)idMenuTitle, m_title) )
{
wxLogLastError("ModifyMenu");
}
}
}
#ifdef __WIN32__
// put the title string in bold face
if ( !m_title.IsEmpty() )
{
MENUITEMINFO mii;
mii.cbSize = sizeof(mii);
mii.fMask = MIIM_STATE;
mii.fState = MFS_DEFAULT;
if ( !SetMenuItemInfo(hMenu, (unsigned)idMenuTitle, FALSE, &mii) )
{
wxLogLastError("SetMenuItemInfo");
}
}
#endif
}
const wxString wxMenu::GetTitle() const
{
return m_title;
}
// ---------------------------------------------------------------------------
// event processing
// ---------------------------------------------------------------------------
bool wxMenu::MSWCommand(WXUINT WXUNUSED(param), WXWORD id)
{
// ignore commands from the menu title
// NB: VC++ generates wrong assembler for `if ( id != idMenuTitle )'!!
if ( id != (WXWORD)idMenuTitle )
{
wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED);
event.SetEventObject( this );
event.SetId( id );
event.SetInt( id );
ProcessCommand(event);
}
return TRUE;
}
bool wxMenu::ProcessCommand(wxCommandEvent & event)
{
bool processed = FALSE;
// Try a callback
if (m_callback)
{
(void)(*(m_callback))(*this, event);
processed = TRUE;
}
// Try the menu's event handler
if ( !processed && GetEventHandler())
{
processed = GetEventHandler()->ProcessEvent(event);
}
// Try the window the menu was popped up from (and up through the
// hierarchy)
wxWindow *win = GetInvokingWindow();
if ( !processed && win )
processed = win->GetEventHandler()->ProcessEvent(event);
return processed;
}
// ---------------------------------------------------------------------------
// Item search
// ---------------------------------------------------------------------------
// Finds the item id matching the given string, -1 if not found.
int wxMenu::FindItem (const wxString& itemString) const
{
wxString itemLabel = wxStripMenuCodes(itemString);
for ( wxNode *node = m_menuItems.First(); node; node = node->Next() )
{
wxMenuItem *item = (wxMenuItem *)node->Data();
if ( item->IsSubMenu() )
{
int ans = item->GetSubMenu()->FindItem(itemString);
if ( ans != wxNOT_FOUND )
return ans;
}
else if ( !item->IsSeparator() )
{
wxString label = wxStripMenuCodes(item->GetName());
if ( itemLabel == label )
return item->GetId();
}
}
return wxNOT_FOUND;
}
wxMenuItem *wxMenu::FindItemForId(int itemId, wxMenu ** itemMenu) const
{
if ( itemMenu )
*itemMenu = NULL;
wxMenuItem *item = NULL;
for ( wxNode *node = m_menuItems.First(); node && !item; node = node->Next() )
{
item = (wxMenuItem *)node->Data();
if ( item->GetId() == itemId )
{
if (itemMenu)
*itemMenu = (wxMenu *)this;
}
else if ( item->IsSubMenu() )
{
item = item->GetSubMenu()->FindItemForId(itemId, itemMenu);
}
else
{
// don't exit the loop
item = NULL;
}
}
return item;
}
// ---------------------------------------------------------------------------
// other
// ---------------------------------------------------------------------------
void wxMenu::Attach(wxMenuBar *menubar)
{
// menu can be in at most one menubar because otherwise they would both
// delete the menu pointer
wxASSERT_MSG( !m_menuBar, _T("menu belongs to 2 menubars, expect a crash") );
m_menuBar = menubar;
m_savehMenu = m_hMenu;
m_hMenu = 0;
}
void wxMenu::Detach()
{
wxASSERT_MSG( m_menuBar, _T("can't detach menu if it's not attached") );
m_hMenu = m_savehMenu;
m_savehMenu = 0;
}
// ---------------------------------------------------------------------------
// Menu Bar
// ---------------------------------------------------------------------------
void wxMenuBar::Init()
{
m_eventHandler = this;
m_menuCount = 0;
m_menus = NULL;
m_titles = NULL;
m_menuBarFrame = NULL;
m_hMenu = 0;
}
wxMenuBar::wxMenuBar()
{
Init();
}
wxMenuBar::wxMenuBar( long WXUNUSED(style) )
{
Init();
}
wxMenuBar::wxMenuBar(int count, wxMenu *menus[], const wxString titles[])
{
Init();
m_menuCount = count;
m_menus = menus;
m_titles = new wxString[count];
int i;
for ( i = 0; i < count; i++ )
m_titles[i] = titles[i];
for ( i = 0; i < count; i++ )
m_menus[i]->Attach(this);
}
wxMenuBar::~wxMenuBar()
{
for ( int i = 0; i < m_menuCount; i++ )
{
delete m_menus[i];
}
delete[] m_menus;
delete[] m_titles;
}
// ---------------------------------------------------------------------------
// wxMenuBar helpers
// ---------------------------------------------------------------------------
void wxMenuBar::Refresh()
{
wxCHECK_RET( m_menuBarFrame, _T("can't refresh a menubar withotu a frame") );
DrawMenuBar((HWND)m_menuBarFrame->GetHWND()) ;
}
WXHMENU wxMenuBar::Create()
{
wxCHECK_MSG( !m_hMenu, TRUE, _T("menubar already created") );
m_hMenu = (WXHMENU)::CreateMenu();
if ( !m_hMenu )
{
wxLogLastError("CreateMenu");
}
else
{
for ( int i = 0; i < m_menuCount; i++ )
{
if ( !::AppendMenu((HMENU)m_hMenu, MF_POPUP | MF_STRING,
(UINT)m_menus[i]->GetHMenu(),
m_titles[i]) )
{
wxLogLastError("AppendMenu");
}
}
}
return m_hMenu;
}
// ---------------------------------------------------------------------------
// wxMenuBar functions forwarded to wxMenuItem
// ---------------------------------------------------------------------------
// Must only be used AFTER menu has been attached to frame,
// otherwise use individual menus to enable/disable items
void wxMenuBar::Enable(int id, bool enable)
{
wxMenu *itemMenu = NULL;
wxMenuItem *item = FindItemForId(id, &itemMenu) ;
wxCHECK_RET( item, _T("attempt to enable an item which doesn't exist") );
item->Enable(enable);
}
void wxMenuBar::EnableTop(int pos, bool enable)
{
int flag = enable ? MF_ENABLED : MF_GRAYED;;
EnableMenuItem((HMENU)m_hMenu, pos, MF_BYPOSITION | flag);
}
// Must only be used AFTER menu has been attached to frame,
// otherwise use individual menus
void wxMenuBar::Check(int id, bool check)
{
wxMenu *itemMenu = NULL;
wxMenuItem *item = FindItemForId(id, &itemMenu) ;
wxCHECK_RET( item, _T("attempt to check an item which doesn't exist") );
wxCHECK_RET( item->IsCheckable(), _T("attempt to check an uncheckable item") );
item->Check(check);
}
bool wxMenuBar::IsChecked(int id) const
{
wxMenu *itemMenu = NULL;
wxMenuItem *item = FindItemForId(id, &itemMenu) ;
wxCHECK_MSG( item, FALSE, _T("wxMenuBar::IsChecked(): no such item") );
int flag = ::GetMenuState(GetHmenuOf(itemMenu), id, MF_BYCOMMAND);
return (flag & MF_CHECKED) != 0;
}
bool wxMenuBar::IsEnabled(int id) const
{
wxMenu *itemMenu = NULL;
wxMenuItem *item = FindItemForId(id, &itemMenu) ;
wxCHECK_MSG( item, FALSE, _T("wxMenuBar::IsEnabled(): no such item") );
int flag = ::GetMenuState(GetHmenuOf(itemMenu), id, MF_BYCOMMAND) ;
// don't "and" with MF_ENABLED because its value is 0
return (flag & MF_DISABLED) == 0;
}
void wxMenuBar::SetLabel(int id, const wxString& label)
{
wxMenu *itemMenu = NULL;
wxMenuItem *item = FindItemForId(id, &itemMenu) ;
wxCHECK_RET( item, _T("wxMenuBar::SetLabel(): no such item") );
item->SetName(label);
}
wxString wxMenuBar::GetLabel(int id) const
{
wxMenu *itemMenu = NULL;
wxMenuItem *item = FindItemForId(id, &itemMenu) ;
wxCHECK_MSG( item, _T(""), _T("wxMenuBar::GetLabel(): no such item") );
return item->GetName();
}
void wxMenuBar::SetHelpString (int id, const wxString& helpString)
{
wxMenu *itemMenu = NULL;
wxMenuItem *item = FindItemForId(id, &itemMenu) ;
wxCHECK_RET( item, _T("wxMenuBar::SetHelpString(): no such item") );
item->SetHelp(helpString);
}
wxString wxMenuBar::GetHelpString (int id) const
{
wxMenu *itemMenu = NULL;
wxMenuItem *item = FindItemForId(id, &itemMenu) ;
wxCHECK_MSG( item, _T(""), _T("wxMenuBar::GetHelpString(): no such item") );
return item->GetHelp();
}
// ---------------------------------------------------------------------------
// wxMenuBar functions to work with the top level submenus
// ---------------------------------------------------------------------------
// NB: we don't support owner drawn top level items for now, if we do these
// functions would have to be changed to use wxMenuItem as well
void wxMenuBar::SetLabelTop(int pos, const wxString& label)
{
UINT id;
UINT flagsOld = ::GetMenuState((HMENU)m_hMenu, pos, MF_BYPOSITION);
if ( flagsOld == 0xFFFFFFFF )
{
wxLogLastError(_T("GetMenuState"));
return;
}
if ( flagsOld & MF_POPUP )
{
// HIBYTE contains the number of items in the submenu in this case
flagsOld &= 0xff ;
id = (UINT)::GetSubMenu((HMENU)m_hMenu, pos) ;
}
else
{
id = pos;
}
if ( ::ModifyMenu(GetHmenu(), pos, MF_BYPOSITION | MF_STRING | flagsOld,
id, label) == 0xFFFFFFFF )
{
wxLogLastError("ModifyMenu");
}
}
wxString wxMenuBar::GetLabelTop(int pos) const
{
int len = ::GetMenuString((HMENU)m_hMenu, pos, NULL, 0, MF_BYCOMMAND);
len++; // for the NUL character
wxString label;
::GetMenuString(GetHmenu(), pos, label.GetWriteBuf(len), len, MF_BYCOMMAND);
label.UngetWriteBuf();
return label;
}
// ---------------------------------------------------------------------------
// wxMenuBar notifications
// ---------------------------------------------------------------------------
bool wxMenuBar::OnDelete(wxMenu *a_menu, int pos)
{
if ( !m_menuBarFrame )
return TRUE;
if ( ::RemoveMenu((HMENU)m_hMenu, (UINT)pos, MF_BYPOSITION) )
{
// VZ: I'm not sure about what's going on here, so I leave an assert
wxASSERT_MSG( m_menus[pos] == a_menu, _T("what is this parameter for??") );
a_menu->Detach();
if ( m_menuBarFrame )
Refresh();
return TRUE;
}
else
{
wxLogLastError("RemoveMenu");
}
return FALSE;
}
bool wxMenuBar::OnAppend(wxMenu *a_menu, const wxChar *title)
{
WXHMENU submenu = a_menu->GetHMenu();
if ( !submenu )
return FALSE;
if ( !m_menuBarFrame )
return TRUE;
a_menu->Attach(this);
if ( !::AppendMenu(GetHmenu(), MF_POPUP | MF_STRING,
(UINT)submenu, title) )
{
wxLogLastError(_T("AppendMenu"));
}
Refresh();
return TRUE;
}
// ---------------------------------------------------------------------------
// wxMenuBar construction
// ---------------------------------------------------------------------------
void wxMenuBar::Append (wxMenu * menu, const wxString& title)
{
if (!OnAppend(menu, title))
return;
m_menuCount ++;
wxMenu **new_menus = new wxMenu *[m_menuCount];
wxString *new_titles = new wxString[m_menuCount];
int i;
for (i = 0; i < m_menuCount - 1; i++)
{
new_menus[i] = m_menus[i];
m_menus[i] = NULL;
new_titles[i] = m_titles[i];
m_titles[i] = _T("");
}
if (m_menus)
{
delete[]m_menus;
delete[]m_titles;
}
m_menus = new_menus;
m_titles = new_titles;
m_menus[m_menuCount - 1] = (wxMenu *)menu;
m_titles[m_menuCount - 1] = title;
menu->SetParent(this);
}
void wxMenuBar::Delete(wxMenu * menu, int i)
{
int j;
int ii = (int) i;
if (menu != 0) {
for (ii = 0; ii < m_menuCount; ii++) {
if (m_menus[ii] == menu)
break;
}
if (ii >= m_menuCount)
return;
} else {
if (ii < 0 || ii >= m_menuCount)
return;
menu = m_menus[ii];
}
if (!OnDelete(menu, ii))
return;
menu->SetParent(NULL);
-- m_menuCount;
for (j = ii; j < m_menuCount; j++) {
m_menus[j] = m_menus[j + 1];
m_titles[j] = m_titles[j + 1];
}
}
void wxMenuBar::Attach(wxFrame *frame)
{
wxASSERT_MSG( !m_menuBarFrame, _T("menubar already attached!") );
m_menuBarFrame = frame;
#if wxUSE_ACCEL
// create the accel table - we consider that the menubar construction is
// finished
size_t nAccelCount = 0;
int i;
for ( i = 0; i < m_menuCount; i++ )
{
nAccelCount += m_menus[i]->GetAccelCount();
}
if ( nAccelCount )
{
wxAcceleratorEntry *accelEntries = new wxAcceleratorEntry[nAccelCount];
nAccelCount = 0;
for ( i = 0; i < m_menuCount; i++ )
{
nAccelCount += m_menus[i]->CopyAccels(&accelEntries[nAccelCount]);
}
m_accelTable = wxAcceleratorTable(nAccelCount, accelEntries);
delete [] accelEntries;
}
#endif // wxUSE_ACCEL
}
// ---------------------------------------------------------------------------
// wxMenuBar searching for menu items
// ---------------------------------------------------------------------------
// Find the itemString in menuString, and return the item id or wxNOT_FOUND
int wxMenuBar::FindMenuItem(const wxString& menuString,
const wxString& itemString) const
{
wxString menuLabel = wxStripMenuCodes(menuString);
for ( int i = 0; i < m_menuCount; i++ )
{
wxString title = wxStripMenuCodes(m_titles[i]);
if ( menuString == title )
return m_menus[i]->FindItem(itemString);
}
return wxNOT_FOUND;
}
wxMenuItem *wxMenuBar::FindItemForId (int id, wxMenu **itemMenu) const
{
if ( itemMenu )
*itemMenu = NULL;
wxMenuItem *item = NULL;
for ( int i = 0; !item && (i < m_menuCount); i++ )
{
item = m_menus[i]->FindItemForId(id, itemMenu);
}
return item;
}
// ----------------------------------------------------------------------------
// helper functions
// ----------------------------------------------------------------------------
wxWindow *wxMenu::GetWindow() const
{
if ( m_pInvokingWindow != NULL )
return m_pInvokingWindow;
else if ( m_menuBar != NULL)
return m_menuBar->GetFrame();
return NULL;
}
WXHMENU wxMenu::GetHMenu() const
{
if ( m_hMenu != 0 )
return m_hMenu;
else if ( m_savehMenu != 0 )
return m_savehMenu;
wxFAIL_MSG(_T("wxMenu without HMENU"));
return 0;
}
// Update a menu and all submenus recursively. source is the object that has
// the update event handlers defined for it. If NULL, the menu or associated
// window will be used.
void wxMenu::UpdateUI(wxEvtHandler* source)
{
if (!source && GetInvokingWindow())
source = GetInvokingWindow()->GetEventHandler();
if (!source)
source = GetEventHandler();
if (!source)
source = this;
wxNode* node = GetItems().First();
while (node)
{
wxMenuItem* item = (wxMenuItem*) node->Data();
if ( !item->IsSeparator() )
{
wxWindowID id = item->GetId();
wxUpdateUIEvent event(id);
event.SetEventObject( source );
if (source->ProcessEvent(event))
{
if (event.GetSetText())
SetLabel(id, event.GetText());
if (event.GetSetChecked())
Check(id, event.GetChecked());
if (event.GetSetEnabled())
Enable(id, event.GetEnabled());
}
if (item->GetSubMenu())
item->GetSubMenu()->UpdateUI(source);
}
node = node->Next();
}
}
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