bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
WXHWND hwndAct,
WXHWND hwndDeact)
{
wxMDIParentFrame * const parent = GetMDIParent();
WXHMENU hMenuToSet = 0;
bool activated;
if ( m_hWnd == hwndAct )
{
activated = true;
parent->SetActiveChild(this);
WXHMENU hMenuChild = m_hMenu;
if ( hMenuChild )
hMenuToSet = hMenuChild;
}
else if ( m_hWnd == hwndDeact )
{
wxASSERT_MSG( parent->GetActiveChild() == this,
wxT("can't deactivate MDI child which wasn't active!") );
activated = false;
parent->SetActiveChild(NULL);
WXHMENU hMenuParent = parent->m_hMenu;
// activate the the parent menu only when there is no other child
// that has been activated
if ( hMenuParent && !hwndAct )
hMenuToSet = hMenuParent;
}
else
{
// we have nothing to do with it
return false;
}
if ( hMenuToSet )
{
MDISetMenu(parent->GetClientWindow(),
(HMENU)hMenuToSet, GetMDIWindowMenu(parent));
}
wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
event.SetEventObject( this );
ResetWindowStyle(NULL);
return HandleWindowEvent(event);
}
void wxMDIParentFrame::InternalSetMenuBar()
{
if ( GetActiveChild() )
{
AddWindowMenu();
}
else // we don't have any MDI children yet
{
// wait until we do to add the window menu but do set the main menu for
// now (this is done by AddWindowMenu() as a side effect)
MDISetMenu(GetClientWindow(), (HMENU)m_hMenu, NULL);
}
}
bool wxMDIChildFrame::Show(bool show)
{
if (!wxFrame::Show(show))
return false;
// KH: Without this call, new MDI children do not become active.
// This was added here after the same BringWindowToTop call was
// removed from wxTopLevelWindow::Show (November 2005)
if ( show )
::BringWindowToTop(GetHwnd());
// we need to refresh the MDI frame window menu to include (or exclude if
// we've been hidden) this frame
wxMDIParentFrame * const parent = GetMDIParent();
MDISetMenu(parent->GetClientWindow(), NULL, NULL);
return true;
}
static void RemoveWindowMenu(wxWindow *win, WXHMENU menu)
{
HMENU hMenu = (HMENU)menu;
if ( hMenu )
{
wxChar buf[1024];
int N = ::GetMenuItemCount(hMenu);
for ( int i = 0; i < N; i++ )
{
if ( !::GetMenuString(hMenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION) )
{
// Ignore successful read of menu string with length 0 which
// occurs, for example, for a maximized MDI childs system menu
if ( ::GetLastError() != 0 )
{
wxLogLastError(wxT("GetMenuString"));
}
continue;
}
if ( wxStrcmp(buf, _("&Window")) == 0 )
{
if ( !::RemoveMenu(hMenu, i, MF_BYPOSITION) )
{
wxLogLastError(wxT("RemoveMenu"));
}
break;
}
}
}
if ( win )
{
// we don't change the windows menu, but we update the main one
MDISetMenu(win, hMenu, NULL);
}
}
static void InsertWindowMenu(wxWindow *win, WXHMENU menu, HMENU subMenu)
{
// Try to insert Window menu in front of Help, otherwise append it.
HMENU hmenu = (HMENU)menu;
if (subMenu)
{
int N = GetMenuItemCount(hmenu);
bool success = false;
for ( int i = 0; i < N; i++ )
{
wxChar buf[256];
int chars = GetMenuString(hmenu, i, buf, WXSIZEOF(buf), MF_BYPOSITION);
if ( chars == 0 )
{
wxLogLastError(wxT("GetMenuString"));
continue;
}
if ( wxStripMenuCodes(wxString(buf)).IsSameAs(_("Help")) )
{
success = true;
::InsertMenu(hmenu, i, MF_BYPOSITION | MF_POPUP | MF_STRING,
(UINT)subMenu, _("&Window"));
break;
}
}
if ( !success )
{
::AppendMenu(hmenu, MF_POPUP, (UINT)subMenu, _("&Window"));
}
}
MDISetMenu(win, hmenu, subMenu);
}
bool wxMDIChildFrame::HandleMDIActivate(long WXUNUSED(activate),
WXHWND hwndAct,
WXHWND hwndDeact)
{
wxMDIParentFrame *parent = (wxMDIParentFrame *)GetParent();
HMENU menuToSet = 0;
bool activated;
if ( m_hWnd == hwndAct )
{
activated = true;
parent->m_currentChild = this;
HMENU child_menu = (HMENU)GetWinMenu();
if ( child_menu )
{
parent->m_parentFrameActive = false;
menuToSet = child_menu;
}
}
else if ( m_hWnd == hwndDeact )
{
wxASSERT_MSG( parent->m_currentChild == this,
wxT("can't deactivate MDI child which wasn't active!") );
activated = false;
parent->m_currentChild = NULL;
HMENU parent_menu = (HMENU)parent->GetWinMenu();
// activate the the parent menu only when there is no other child
// that has been activated
if ( parent_menu && !hwndAct )
{
parent->m_parentFrameActive = true;
menuToSet = parent_menu;
}
}
else
{
// we have nothing to do with it
return false;
}
if ( menuToSet )
{
MDISetMenu(parent->GetClientWindow(),
menuToSet, GetMDIWindowMenu(parent));
}
wxActivateEvent event(wxEVT_ACTIVATE, activated, m_windowId);
event.SetEventObject( this );
ResetWindowStyle((void *)NULL);
return GetEventHandler()->ProcessEvent(event);
}
