/*****************************************************************************

                        I N I T M E N U

    Name:       initmenu.c
    Date:       21-Jan-1994
    Creator:    Unknown

    Description:
        This file contains the function to initialize the menus.

    History:
        21-Jan-1994     John Fu, reformat and cleanup.
        13-Mar-1995     John Fu, add Paste to Page

*****************************************************************************/



#define	WIN31
#define STRICT

#include <windows.h>
#include <windowsx.h>
#include <assert.h>
#include <memory.h>

#include "common.h"
#include "clipbook.h"
#include "clipbrd.h"
#include "clipdsp.h"
#include "commctrl.h"
#include "cvinit.h"
#include "cvutil.h"
#include "initmenu.h"










/*
 *      InitializeMenu
 *
 *  this function controls the enabled/grayed state of
 *  the menu items and the state of the toolbar buttons.
 *  It is called when the selection within a listbox changes,
 *  or the focus changes from one MDI child window to another.
 */

VOID PASCAL InitializeMenu (
    HANDLE  hmenu)
{
LPLISTENTRY     lpLE = NULL;
int             index;
int             fMenu;
int             fButton;
DWORD           flags;



    assert(NULL != pActiveMDI);

    hmenu = GetMenu(hwndApp);

    flags = pActiveMDI->flags;


    if (flags & F_CLPBRD)
        {
        index = LB_ERR;
        }
    else if (pActiveMDI->hWndListbox)
        {
        index = (int)SendMessage (pActiveMDI->hWndListbox, LB_GETCURSEL, 0, 0L);

        if ( index != LB_ERR )
            {
            SendMessage (pActiveMDI->hWndListbox, LB_GETTEXT, index, (LPARAM)(LPCSTR)&lpLE);
            }
       }
    else
        index = LB_ERR;



    EnableMenuItem (hmenu,
                    IDM_OPEN,
                    (flags & F_CLPBRD ? MF_ENABLED : MF_GRAYED)| MF_BYCOMMAND);

    EnableMenuItem (hmenu,
                    IDM_SAVEAS,
                    (CountClipboardFormats() && flags & (F_CLPBRD|F_LOCAL)?
                     MF_ENABLED :
                     MF_GRAYED)
                    | MF_BYCOMMAND );


    if ( fShareEnabled )
        {
        // SHARE allowed?
        if ( (flags & F_LOCAL) && (index != LB_ERR) )
            {
            fMenu = MF_ENABLED;
            fButton = TRUE;
            }
        else
            {
            fMenu = MF_GRAYED;
            fButton = FALSE;
            }
        EnableMenuItem (hmenu, IDM_SHARE, fMenu | MF_BYCOMMAND );
        SendMessage ( hwndToolbar, TB_ENABLEBUTTON, IDM_SHARE, fButton );

        // UNSHARE allowed?
        if ( (flags & F_LOCAL) && (index != LB_ERR) &&  IsShared(lpLE) )
            {
            fMenu = MF_ENABLED;
            fButton = TRUE;
            }
        else
            {
            fMenu = MF_GRAYED;
            fButton = FALSE;
            }
        EnableMenuItem (hmenu, IDM_UNSHARE, fMenu | MF_BYCOMMAND);
        SendMessage ( hwndToolbar, TB_ENABLEBUTTON, IDM_UNSHARE, fButton );
        }





    if ( fNetDDEActive )
        {
        // DISCONNECT allowed?
        EnableMenuItem (hmenu, IDM_DISCONNECT,
           (flags & ( F_LOCAL | F_CLPBRD ) ? MF_GRAYED : MF_ENABLED) | MF_BYCOMMAND );
        SendMessage ( hwndToolbar, TB_ENABLEBUTTON, IDM_DISCONNECT,
           flags & ( F_LOCAL | F_CLPBRD ) ? FALSE : TRUE );
        }
    else // If netdde isn't active, we can't connect
        {
        EnableMenuItem(hmenu, IDM_CONNECT, MF_GRAYED | MF_BYCOMMAND);
        EnableMenuItem(hmenu, IDM_DISCONNECT, MF_GRAYED | MF_BYCOMMAND);
        SendMessage(hwndToolbar, TB_ENABLEBUTTON, IDM_CONNECT, FALSE);
        SendMessage(hwndToolbar, TB_ENABLEBUTTON, IDM_DISCONNECT, FALSE);
        }



    // Delete allowed?
    if ( ( flags & F_LOCAL && index != LB_ERR ) ||
        flags & F_CLPBRD && CountClipboardFormats() )
        {
        fMenu = MF_ENABLED;
        fButton = TRUE;
        }
    else
        {
        fMenu = MF_GRAYED;
        fButton = FALSE;
        }

    EnableMenuItem (hmenu, IDM_DELETE, fMenu | MF_BYCOMMAND);
    SendMessage ( hwndToolbar, TB_ENABLEBUTTON, IDM_DELETE, fButton );



    // a page selected?
    if ( index != LB_ERR  )
        {
        fMenu = MF_ENABLED;
        fButton = TRUE;
        }
    else
        {
        fMenu = MF_GRAYED;
        fButton = FALSE;
        }

    EnableMenuItem (hmenu, IDM_COPY, fMenu | MF_BYCOMMAND);
    SendMessage ( hwndToolbar, TB_ENABLEBUTTON, IDM_COPY, fButton );



    // Paste Allowed?
    if (CountClipboardFormats() && hwndActiveChild == hwndLocal && !(flags & F_CLPBRD))
        {
        fMenu = MF_ENABLED;
        fButton = TRUE;
        }
    else
        {
        fMenu = MF_GRAYED;
        fButton = FALSE;
        }


    EnableMenuItem (hmenu, IDM_KEEP, fMenu | MF_BYCOMMAND);
    SendMessage (hwndToolbar, TB_ENABLEBUTTON, IDM_KEEP, fButton );


    // if a page is selected
    if (LB_ERR != index)
        EnableMenuItem (hmenu, IDM_PASTE_PAGE, fMenu|MF_BYCOMMAND);
    else
        EnableMenuItem (hmenu, IDM_PASTE_PAGE, MF_GRAYED|MF_BYCOMMAND);








    // TOOLBAR, STATUS BAR
    CheckMenuItem ( hmenu, IDM_TOOLBAR, fToolBar ? MF_CHECKED : MF_UNCHECKED );
    CheckMenuItem ( hmenu, IDM_STATUSBAR, fStatus ? MF_CHECKED:MF_UNCHECKED );




    // disable some view options if clipboard window

    EnableMenuItem (hmenu,
                    IDM_LISTVIEW,
                    (flags & F_CLPBRD ? MF_GRAYED : MF_ENABLED) | MF_BYCOMMAND );

    EnableMenuItem (hmenu,
                    IDM_PREVIEWS,
                    (flags & F_CLPBRD ? MF_GRAYED : MF_ENABLED) | MF_BYCOMMAND );
    EnableMenuItem (hmenu,
                    IDM_PAGEVIEW,
                    ((flags & F_CLPBRD) || index != LB_ERR ? MF_ENABLED : MF_GRAYED) | MF_BYCOMMAND);

    SendMessage (hwndToolbar,
                 TB_ENABLEBUTTON,
                 IDM_LISTVIEW,
                 flags & F_CLPBRD ? FALSE : TRUE);

    SendMessage (hwndToolbar,
                 TB_ENABLEBUTTON,
                 IDM_PREVIEWS,
                 flags & F_CLPBRD ? FALSE : TRUE);

    SendMessage (hwndToolbar,
                 TB_ENABLEBUTTON,
                 IDM_PAGEVIEW,
                 (( flags & F_CLPBRD ) || index != LB_ERR ) ? TRUE : FALSE );



    // Disable "Security" menu for other than Local Clipbook window
    // or if there's no item selected in the clipbook window
    fMenu = MF_GRAYED | MF_BYCOMMAND;
    if ((flags & F_LOCAL) && LB_ERR != index)
        {
        fMenu = MF_ENABLED | MF_BYCOMMAND;
        }

    EnableMenuItem (hmenu, IDM_PERMISSIONS, fMenu);
    EnableMenuItem (hmenu, IDM_OWNER, fMenu);
    EnableMenuItem (hmenu, IDM_AUDITING, fAuditEnabled ? fMenu : MF_GRAYED | MF_BYCOMMAND);



    // check selected view...

    CheckMenuItem (hmenu,
                   IDM_LISTVIEW,
                   pActiveMDI->DisplayMode == DSP_LIST ? MF_CHECKED : MF_UNCHECKED );

    CheckMenuItem (hmenu,
                   IDM_PREVIEWS,
                   pActiveMDI->DisplayMode == DSP_PREV ? MF_CHECKED : MF_UNCHECKED );
    CheckMenuItem (hmenu,
                   IDM_PAGEVIEW,
                   pActiveMDI->DisplayMode == DSP_PAGE ? MF_CHECKED : MF_UNCHECKED );

    SendMessage (hwndToolbar,
                 TB_CHECKBUTTON,
                 IDM_LISTVIEW,
                 pActiveMDI->DisplayMode == DSP_LIST ? TRUE : FALSE );

    SendMessage (hwndToolbar,
                 TB_CHECKBUTTON,
                 IDM_PREVIEWS,
                 pActiveMDI->DisplayMode == DSP_PREV ? TRUE : FALSE );

    SendMessage (hwndToolbar,
                 TB_CHECKBUTTON,
                 IDM_PAGEVIEW,
                 pActiveMDI->DisplayMode == DSP_PAGE ? TRUE : FALSE );




    DrawMenuBar(hwndApp);


    return;

}