; int __stdcall GenericBox(DLGTEMPLATE* dlg, void* DlgProc);
;       int __stdcall DlgProc(DLGTEMPLATE* dlg, int msg, int param1, int param2);

virtual at 0
dlgtemplate:
.flags          dd      ?
.x              dd      ?
.y              dd      ?
.width          dd      ?
.height         dd      ?
.border_size_x  dd      ?
.border_size_y  dd      ?
.title          dd      ?
.main_color     db      ?
.border_color   db      ?
.header_color   db      ?
                db      ?       ; align
.size = $
end virtual

GenericBox:
        pushad
        mov     ebx, [esp+20h+4]
; center window if required
        cmp     [ebx+dlgtemplate.x], -1
        jnz     @f
        mov     eax, [cur_width]
        sub     eax, [ebx+dlgtemplate.width]
        shr     eax, 1
        mov     [ebx+dlgtemplate.x], eax
@@:
        cmp     [ebx+dlgtemplate.y], -1
        jnz     @f
        mov     eax, [cur_height]
        sub     eax, [ebx+dlgtemplate.height]
        shr     eax, 1
        mov     [ebx+dlgtemplate.y], eax
@@:
; some checks
        mov     eax, [ebx+dlgtemplate.x]
        cmp     eax, 1
        jl      .sizeerr
        add     eax, [ebx+dlgtemplate.width]
        cmp     eax, [cur_width]
        jge     .sizeerr
        mov     eax, [ebx+dlgtemplate.y]
        cmp     eax, 1
        jl      .sizeerr
        add     eax, [ebx+dlgtemplate.height]
        cmp     eax, [cur_height]
        jge     .sizeerr
        cmp     [ebx+dlgtemplate.border_size_x], 1
        jl      .sizeerr
        cmp     [ebx+dlgtemplate.border_size_y], 1
        jge     .sizeok
.sizeerr:
        popad
        or      eax, -1
        ret     8
.sizeok:
; allocate memory for data under dialog
        mov     eax, [ebx+dlgtemplate.width]
        add     eax, [ebx+dlgtemplate.border_size_x]
        add     eax, [ebx+dlgtemplate.border_size_x]
        inc     eax
        inc     eax
        mov     edx, [ebx+dlgtemplate.height]
        add     edx, [ebx+dlgtemplate.border_size_y]
        add     edx, [ebx+dlgtemplate.border_size_y]
        inc     edx
        mul     edx
        add     eax, eax
        call    mf_alloc
        test    eax, eax
        jnz     @f
; TODO: add error message
        popad
        or      eax, -1
        ret     8
@@:
        mov     ebp, eax
; save data
        mov     eax, [ebx+dlgtemplate.y]
        add     eax, [ebx+dlgtemplate.height]
        add     eax, [ebx+dlgtemplate.border_size_y]
        inc     eax
        push    eax
        mov     eax, [ebx+dlgtemplate.x]
        add     eax, [ebx+dlgtemplate.width]
        add     eax, [ebx+dlgtemplate.border_size_x]
        inc     eax
        inc     eax
        push    eax
        mov     eax, [ebx+dlgtemplate.y]
        sub     eax, [ebx+dlgtemplate.border_size_y]
        push    eax
        mov     eax, [ebx+dlgtemplate.x]
        sub     eax, [ebx+dlgtemplate.border_size_x]
        push    eax
        call    save_console_data
; draw shadow
        mov     eax, [ebx+dlgtemplate.x]
        sub     eax, [ebx+dlgtemplate.border_size_x]
        ja      @f
        xor     eax, eax
@@:
        push    eax     ; save real window left
        inc     eax
        inc     eax
        mov     edx, [ebx+dlgtemplate.y]
        sub     edx, [ebx+dlgtemplate.border_size_y]
        ja      @f
        xor     edx, edx
@@:
        push    edx     ; save real window top
        inc     edx
        call    get_console_ptr
        mov     ecx, [ebx+dlgtemplate.y]
        add     ecx, [ebx+dlgtemplate.height]
        add     ecx, [ebx+dlgtemplate.border_size_y]
        inc     ecx
        cmp     ecx, [cur_height]
        jb      @f
        mov     ecx, [cur_height]
@@:
        sub     ecx, edx
        mov     edx, ecx
        mov     ecx, [ebx+dlgtemplate.x]
        add     ecx, [ebx+dlgtemplate.width]
        add     ecx, [ebx+dlgtemplate.border_size_x]
        inc     ecx
        inc     ecx
        cmp     ecx, [cur_width]
        jb      @f
        mov     ecx, [cur_width]
@@:
        sub     ecx, eax
        mov     eax, ecx
.shadow_loop:
        mov     ecx, eax
        push    edi
.sl1:
        inc     edi
        test    byte [edi], 0x0F
        jnz     @f
        or      byte [edi], 8
@@:
        and     byte [edi], 0x0F
        inc     edi
        loop    .sl1
        pop     edi
        add     edi, [cur_width]
        add     edi, [cur_width]
        dec     edx
        jnz     .shadow_loop
; draw area background
        pop     edx
        pop     eax
        call    get_console_ptr
        mov     ecx, [ebx+dlgtemplate.x]
        add     ecx, [ebx+dlgtemplate.width]
        add     ecx, [ebx+dlgtemplate.border_size_x]
        cmp     ecx, [cur_width]
        jb      @f
        mov     ecx, [cur_width]
@@:
        sub     ecx, eax
        mov     esi, ecx
        mov     ecx, [ebx+dlgtemplate.y]
        add     ecx, [ebx+dlgtemplate.height]
        add     ecx, [ebx+dlgtemplate.border_size_y]
        cmp     ecx, [cur_height]
        jb      @f
        mov     ecx, [cur_height]
@@:
        sub     ecx, edx
        mov     edx, ecx
        mov     al, ' '
        mov     ah, [ebx+dlgtemplate.border_color]
.1:
        mov     ecx, esi
        push    edi
        rep     stosw
        pop     edi
        add     edi, [cur_width]
        add     edi, [cur_width]
        dec     edx
        jnz     .1
; draw border
        mov     eax, [ebx+dlgtemplate.x]
        dec     eax
        mov     edx, [ebx+dlgtemplate.y]
        dec     edx
        call    get_console_ptr
        mov     edx, [ebx+dlgtemplate.height]
        inc     edx
        inc     edx
        mov     ah, [ebx+dlgtemplate.border_color]
        push    ebx
        mov     ebx, [ebx+dlgtemplate.width]
        inc     ebx
        inc     ebx
        call    draw_border
        pop     ebx
; draw header
        mov     esi, [ebx+dlgtemplate.title]
        test    esi, esi
        jz      .noheader
        cmp     byte [esi], 0
        jz      .noheader
        push    esi
@@:     lodsb
        test    al, al
        jnz     @b
        mov     eax, esi
        pop     esi
        sub     eax, esi
        inc     eax     ; eax = фышэр чруюыютър + 2
        mov     ecx, [ebx+dlgtemplate.width]
        cmp     eax, ecx
        jbe     .fullhea
        sub     ecx, 5
        jb      .noheader
        xor     edx, edx
        jmp     .drawhea
.fullhea:
        mov     edx, ecx
        sub     edx, eax
        shr     edx, 1
.drawhea:
        mov     eax, [ebx+dlgtemplate.x]
        add     eax, edx
        mov     edx, [ebx+dlgtemplate.y]
        dec     edx
        call    get_console_ptr
        mov     ah, [ebx+dlgtemplate.header_color]
        mov     al, ' '
        stosw
        dec     ecx
.2:
        jecxz   .3
        lodsb
        test    al, al
        jz      .4
        stosw
        jmp     .2
.3:
        mov     al, '.'
        stosw
        stosw
        stosw
.4:
        mov     al, ' '
        stosw
.noheader:
; draw window background
        mov     eax, [ebx+dlgtemplate.x]
        mov     edx, [ebx+dlgtemplate.y]
        call    get_console_ptr
        mov     ah, [ebx+dlgtemplate.main_color]
        mov     al, ' '
        mov     edx, [ebx+dlgtemplate.height]
@@:
        mov     ecx, [ebx+dlgtemplate.width]
        push    edi
        rep     stosw
        pop     edi
        add     edi, [cur_width]
        add     edi, [cur_width]
        dec     edx
        jnz     @b
; send redraw message
        mov     eax, [esp+20h+8]
        push    ebx ebp
        push    0
        push    0
        push    1
        push    ebx
        call    eax
        call    draw_image
        pop     ebp ebx
; message loop
.event:
        push    10
        pop     eax
        int     40h
        dec     eax
        jz      .redraw
        dec     eax
        jz      .key
        or      eax, -1
        int     40h
.redraw:
        push    ebx ebp
        call    draw_window
        pop     ebp ebx
        jmp     .event
.key:
        mov     al, 2
        int     40h
        shr     eax, 8
        cmp     al, 0xE0
        jnz     @f
        mov     [bWasE0], 1
        jmp     .event
@@:
        xchg    ah, [bWasE0]
        cmp     al, 0x1D
        jz      .ctrl_down
        cmp     al, 0x9D
        jz      .ctrl_up
        cmp     al, 0x2A
        jz      .lshift_down
        cmp     al, 0xAA
        jz      .lshift_up
        cmp     al, 0x36
        jz      .rshift_down
        cmp     al, 0xB6
        jz      .rshift_up
        cmp     al, 0x38
        jz      .alt_down
        cmp     al, 0xB8
        jz      .alt_up
        mov     ecx, [esp+20h+8]
        push    ebx ebp
        push    0
        push    eax
        push    2
        push    ebx
        call    ecx
        pop     ebp ebx
        test    eax, eax
        jz      .event
        mov     [esp+28], eax
        jmp     .exit
.ctrl_down:
        test    ah, ah
        jnz     .rctrl_down
        or      [ctrlstate], 4
        jmp     .event
.rctrl_down:
        or      [ctrlstate], 8
        jmp     .event
.ctrl_up:
        test    ah, ah
        jnz     .rctrl_up
        and     [ctrlstate], not 4
        jmp     .event
.rctrl_up:
        and     [ctrlstate], not 8
        jmp     .event
.lshift_down:
        test    ah, ah
        jnz     @f
        or      [ctrlstate], 1
@@:     jmp     .event
.lshift_up:
        test    ah, ah
        jnz     @b
        and     [ctrlstate], not 1
        jmp     @b
.rshift_down:
        or      [ctrlstate], 2
        jmp     .event
.rshift_up:
        and     [ctrlstate], not 2
        jmp     .event
.alt_down:
        test    ah, ah
        jnz     .ralt_down
        or      [ctrlstate], 0x10
        jmp     .event
.ralt_down:
        or      [ctrlstate], 0x20
        jmp     .event
.alt_up:
        test    ah, ah
        jnz     .ralt_up
        and     [ctrlstate], not 0x10
        jmp     .event
.ralt_up:
        and     [ctrlstate], not 0x20
        jmp     .event
.exit:
; restore data
        mov     eax, [ebx+dlgtemplate.y]
        add     eax, [ebx+dlgtemplate.height]
        add     eax, [ebx+dlgtemplate.border_size_y]
        inc     eax
        push    eax
        mov     eax, [ebx+dlgtemplate.x]
        add     eax, [ebx+dlgtemplate.width]
        add     eax, [ebx+dlgtemplate.border_size_x]
        inc     eax
        inc     eax
        push    eax
        mov     eax, [ebx+dlgtemplate.y]
        sub     eax, [ebx+dlgtemplate.border_size_y]
        push    eax
        mov     eax, [ebx+dlgtemplate.x]
        sub     eax, [ebx+dlgtemplate.border_size_x]
        push    eax
        call    restore_console_data
        call    draw_keybar
        mov     eax, ebp
        call    mf_free
        call    draw_image
        popad
        ret     8

save_console_data:
        cmp     dword [esp+4], 0
        jge     @f
        and     dword [esp+4], 0
@@:
        cmp     dword [esp+8], 0
        jge     @f
        and     dword [esp+8], 0
@@:
        mov     eax, [esp+12]
        cmp     eax, [cur_width]
        jbe     @f
        mov     eax, [cur_width]
@@:
        sub     eax, [esp+4]
        ja      @f
        ret     16
@@:
        mov     [esp+12], eax
        mov     eax, [esp+16]
        cmp     eax, [cur_height]
        jbe     @f
        mov     eax, [cur_height]
@@:
        sub     eax, [esp+8]
        ja      @f
        ret     16
@@:
        mov     [esp+16], eax
        mov     eax, [esp+4]
        mov     edx, [esp+8]
        call    get_console_ptr
        mov     esi, edi
        mov     edi, ebp
.l:
        mov     ecx, [esp+12]
        push    esi
        shr     ecx, 1
        rep     movsd
        adc     ecx, ecx
        rep     movsw
        pop     esi
        add     esi, [cur_width]
        add     esi, [cur_width]
        dec     dword [esp+16]
        jnz     .l
        ret     16

restore_console_data:
        cmp     dword [esp+4], 0
        jge     @f
        and     dword [esp+4], 0
@@:
        cmp     dword [esp+8], 0
        jge     @f
        and     dword [esp+8], 0
@@:
        mov     eax, [esp+12]
        cmp     eax, [cur_width]
        jbe     @f
        mov     eax, [cur_width]
@@:
        sub     eax, [esp+4]
        ja      @f
        ret     16
@@:
        mov     [esp+12], eax
        mov     eax, [esp+16]
        cmp     eax, [cur_height]
        jbe     @f
        mov     eax, [cur_height]
@@:
        sub     eax, [esp+8]
        ja      @f
        ret     16
@@:
        mov     [esp+16], eax
        mov     eax, [esp+4]
        mov     edx, [esp+8]
        call    get_console_ptr
        mov     esi, ebp
.l:
        mov     ecx, [esp+12]
        push    edi
        shr     ecx, 1
        rep     movsd
        adc     ecx, ecx
        rep     movsw
        pop     edi
        add     edi, [cur_width]
        add     edi, [cur_width]
        dec     dword [esp+16]
        jnz     .l
        ret     16

; int __stdcall menu(void* variants, const char* title, unsigned flags);
; variants указывает на текущий элемент в двусвязном линейном списке
menu:
        pop     eax
        push    [cur_height]
        push    [cur_width]
        push    0
        push    0
        push    eax

; int __stdcall menu_centered_in(unsigned left, unsigned top, unsigned width, unsigned height,
;       void* variants, const char* title, unsigned flags);
menu_centered_in:
        pushad
        mov     eax, 56
; 36 bytes for dlgtemplate + additional:
; +36: dd cur_variant
; +40: dd num_variants
; +44: dd begin_variant
; +48: dd end_variant
; +52: dd cur_variant_idx
        call    mf_alloc
        test    eax, eax
        jnz     @f
.ret_bad:
        popad
        or      eax, -1
        ret     28
@@:
        mov     ebx, eax
        mov     eax, 1
        test    byte [esp+20h+28], 1
        jz      @f
        mov     al, 3
@@:
        mov     [ebx+dlgtemplate.border_size_x], eax
        inc     eax
        shr     eax, 1
        mov     [ebx+dlgtemplate.border_size_y], eax
; Находим ширину и высоту окна
        xor     eax, eax
        xor     ecx, ecx
        mov     esi, [esp+20h+20]
        mov     [ebx+36], esi
        and     dword [ebx+52], 0
@@:
        cmp     dword [esi+4], 0
        jz      .find_width
        mov     esi, [esi+4]
        inc     dword [ebx+52]
        jmp     @b
.find_width:
        mov     [ebx+44], esi
        add     esi, 8
        push    esi
        xor     edx, edx
.fw1:
        cmp     byte [esi], '&'
        jnz     @f
        mov     dl, 1
@@:
        inc     esi
        cmp     byte [esi-1], 0
        jnz     .fw1
        sub     esi, [esp]
        sub     esi, edx
        dec     esi
        cmp     eax, esi
        ja      @f
        mov     eax, esi
@@:
        inc     ecx
        pop     esi
        mov     esi, [esi-8]
        test    esi, esi
        jnz     .find_width
        add     eax, 3
        add     eax, [ebx+dlgtemplate.border_size_x]
        add     eax, [ebx+dlgtemplate.border_size_x]
        cmp     eax, [cur_width]
        jb      @f
        mov     eax, [cur_width]
@@:
        sub     eax, [ebx+dlgtemplate.border_size_x]
        sub     eax, [ebx+dlgtemplate.border_size_x]
        mov     [ebx+dlgtemplate.width], eax
        mov     [ebx+dlgtemplate.height], ecx
        mov     [ebx+40], ecx
        sub     eax, [esp+20h+12]
        neg     eax
        sar     eax, 1
        add     eax, [esp+20h+4]
        cmp     eax, [ebx+dlgtemplate.border_size_x]
        jge     @f
        mov     eax, [ebx+dlgtemplate.border_size_x]
@@:
        push    eax
        add     eax, [ebx+dlgtemplate.width]
        add     eax, [ebx+dlgtemplate.border_size_x]
        cmp     eax, [cur_width]
        jbe     @f
        pop     eax
        mov     eax, [cur_width]
        sub     eax, [ebx+dlgtemplate.width]
        sub     eax, [ebx+dlgtemplate.border_size_x]
        push    eax
@@:
        pop     [ebx+dlgtemplate.x]
        sub     ecx, [esp+20h+16]
        neg     ecx
        sar     ecx, 1
        add     ecx, [esp+20h+8]
        cmp     ecx, [ebx+dlgtemplate.border_size_y]
        jge     @f
        mov     ecx, [ebx+dlgtemplate.border_size_y]
@@:
        push    ecx
        add     ecx, [ebx+dlgtemplate.height]
        add     ecx, [ebx+dlgtemplate.border_size_y]
        cmp     ecx, [cur_height]
        jbe     @f
        pop     ecx
        mov     ecx, [cur_height]
        sub     ecx, [ebx+dlgtemplate.height]
        sub     ecx, [ebx+dlgtemplate.border_size_y]
        push    ecx
@@:
        pop     [ebx+dlgtemplate.y]
        mov     eax, [cur_height]
        sub     eax, 6
        cmp     [ebx+dlgtemplate.height], eax
        jbe     .small_height
        mov     [ebx+dlgtemplate.height], eax
        mov     [ebx+dlgtemplate.y], 3
.small_height:
        mov     ecx, [ebx+dlgtemplate.height]
        mov     eax, [ebx+36]
        mov     [ebx+44], eax
        dec     ecx
        jz      .skip
        push    ecx
@@:
        cmp     dword [eax+4], 0
        jz      @f
        mov     eax, [eax+4]
        loop    @b
@@:
        mov     [ebx+44], eax
        pop     ecx
.loop:
        mov     eax, [eax]
        loop    .loop
.skip:
        mov     [ebx+48], eax
        mov     eax, [esp+20h+24]
        mov     [ebx+dlgtemplate.title], eax
        mov     al, [menu_normal_color]
        mov     [ebx+dlgtemplate.main_color], al
        mov     al, [menu_border_color]
        mov     [ebx+dlgtemplate.border_color], al
        mov     al, [menu_header_color]
        mov     [ebx+dlgtemplate.header_color], al
        push    MenuDlgProc
        push    ebx
        call    GenericBox
        mov     [esp+28], eax
        mov     eax, ebx
        call    mf_free
        popad
        ret     28

MenuDlgProc:
        mov     eax, [esp+8]
        cmp     al, 1
        jz      .draw
        cmp     al, 2
        jz      .key
        ret     16
.draw:
        call    .dodraw
        ret     16
.key:
        mov     al, [esp+12]
        cmp     al, 0x48
        jz      .prev
        cmp     al, 0x4B
        jz      .prev
        cmp     al, 0x4D
        jz      .next
        cmp     al, 0x50
        jz      .next
        cmp     al, 0x1C
        jz      .enter
        cmp     al, 1
        jz      .esc
        cmp     al, 0x47
        jz      .home
        cmp     al, 0x4F
        jz      .end
        cmp     al, 0x51
        jz      .pgdn
        cmp     al, 0x49
        jz      .pgup
        mov     edx, [ebx+36]
@@:
        cmp     dword [edx+4], 0
        jz      @f
        mov     edx, [edx+4]
        jmp     @b
@@:
.l:
        lea     esi, [edx+7]
@@:
        inc     esi
        cmp     byte [esi], 0
        jz      .n
        cmp     byte [esi], '&'
        jnz     @b
        movzx   ecx, byte [esi+1]
        cmp     [ascii2scan+ecx], al
        jnz     .n
        mov     eax, edx
        ret     16
.n:
        mov     edx, [edx]
        test    edx, edx
        jnz     .l
.ret:
        xor     eax, eax
        ret     16
.pgup:
        mov     eax, [ebx+36]
        mov     ecx, [ebx+dlgtemplate.height]
.pgupl:
        cmp     dword [eax+4], 0
        jz      .posret
        call    .line_prev
        loop    .pgupl
        jmp     .posret
.prev:
        mov     eax, [ebx+36]
        cmp     dword [eax+4], 0
        jz      .end
        call    .line_prev
.posret:
        mov     [ebx+36], eax
.redraw:
        call    .dodraw
        call    draw_image
        xor     eax, eax
        ret     16
.next:
        mov     eax, [ebx+36]
        cmp     dword [eax], 0
        jz      .home
        call    .line_next
        jmp     .posret
.pgdn:
        mov     eax, [ebx+36]
        mov     ecx, [ebx+dlgtemplate.height]
.pgdnl:
        cmp     dword [eax], 0
        jz      .posret
        call    .line_next
        loop    .pgdnl
        jmp     .posret
.home:
        mov     eax, [ebx+36]
@@:
        cmp     dword [eax+4], 0
        jz      @f
        mov     eax, [eax+4]
        jmp     @b
@@:
        mov     [ebx+44], eax
        push    eax
        mov     ecx, [ebx+dlgtemplate.height]
        dec     ecx
        jz      .h1
.h2:
        mov     eax, [eax]
        loop    .h2
.h1:
        mov     [ebx+48], eax
        pop     eax
        and     dword [ebx+52], 0
        jmp     .posret
.end:
        mov     eax, [ebx+36]
@@:
        cmp     dword [eax], 0
        jz      @f
        mov     eax, [eax]
        jmp     @b
@@:
        mov     [ebx+48], eax
        push    eax
        mov     ecx, [ebx+dlgtemplate.height]
        dec     ecx
        jz      .e1
.e2:
        mov     eax, [eax+4]
        loop    .e2
.e1:
        mov     [ebx+44], eax
        mov     eax, [ebx+40]
        dec     eax
        mov     [ebx+52], eax
        pop     eax
        jmp     .posret
.esc:
        or      eax, -1
        ret     16
.enter:
        mov     eax, [ebx+36]
        ret     16

.line_prev:
        cmp     eax, [ebx+44]
        jnz     @f
        mov     edx, [ebx+44]
        mov     edx, [edx+4]
        mov     [ebx+44], edx
        mov     edx, [ebx+48]
        mov     edx, [edx+4]
        mov     [ebx+48], edx
@@:
        mov     eax, [eax+4]
        dec     dword [ebx+52]
        ret
.line_next:
        cmp     eax, [ebx+48]
        jnz     @f
        mov     edx, [ebx+44]
        mov     edx, [edx]
        mov     [ebx+44], edx
        mov     edx, [ebx+48]
        mov     edx, [edx]
        mov     [ebx+48], edx
@@:
        mov     eax, [eax]
        inc     dword [ebx+52]
        ret

.dodraw:
        mov     eax, [ebx+dlgtemplate.x]
        mov     edx, [ebx+dlgtemplate.y]
        call    get_console_ptr
        mov     esi, [ebx+44]
.0:
        xor     edx, edx
        mov     ah, [menu_selected_color]
        cmp     esi, [ebx+36]
        jz      @f
        mov     ah, [menu_normal_color]
@@:
        push    edi
        mov     ecx, [ebx+dlgtemplate.width]
        mov     al, ' '
        stosw
        dec     ecx
        stosw
        dec     ecx
        dec     ecx
        push    esi
        add     esi, 8
@@:
        lodsb
        test    al, al
        jz      @f
        cmp     al, '&'
        jnz     .noamp
        test    dl, dl
        jnz     .noamp
        mov     dl, 1
        lodsb
        push    eax
        mov     ah, [menu_selected_highlight_color]
        push    ecx
        mov     ecx, [esp+8]
        cmp     ecx, [ebx+36]
        pop     ecx
        jz      .amp1
        mov     ah, [menu_highlight_color]
.amp1:
        stosw
        pop     eax
        jmp     .amp2
.noamp:
        stosw
.amp2:
        loop    @b
        mov     al, ' '
        cmp     byte [esi], 0
        jnz     .1
        lodsb
        jmp     .1
@@:
        mov     al, ' '
.1:
        stosw
        mov     al, ' '
        rep     stosw
        pop     esi edi
        add     edi, [cur_width]
        add     edi, [cur_width]
        cmp     esi, [ebx+48]
        jz      @f
        mov     esi, [esi]
        test    esi, esi
        jnz     .0
@@:
; Линейка прокрутки
        mov     ecx, [ebx+dlgtemplate.height]
        cmp     ecx, [ebx+40]
        jz      .noscrollbar
        sub     ecx, 2
        jbe     .noscrollbar
        mov     eax, [ebx+52]
        mul     ecx
        div     dword [ebx+40]
        push    eax
        mov     eax, [ebx+dlgtemplate.x]
        add     eax, [ebx+dlgtemplate.width]
        mov     edx, [ebx+dlgtemplate.y]
        call    get_console_ptr
        pop     edx
        inc     edx
        mov     al, 0x1E
        mov     ah, [menu_scrollbar_color]
        mov     [edi], ax
        add     edi, [cur_width]
        add     edi, [cur_width]
.2:
        mov     al, 0xB2
        dec     edx
        jz      @f
        mov     al, 0xB0
@@:
        mov     [edi], ax
        add     edi, [cur_width]
        add     edi, [cur_width]
        loop    .2
        mov     al, 0x1F
        stosw
.noscrollbar:
        ret

virtual at 0
dlgitemtemplate:
; Элементы:
;       1 = статический текст
.type           dd      ?
.x1             dd      ?
.y1             dd      ?
.x2             dd      ?
.y2             dd      ?
.data           dd      ?
.flags          dd      ?
; Флаги:
;       0 = выравнивание влево
;       1 = выравнивание по центру
;       2 = выравнивание вправо
;       4 = элемент имеет фокус ввода
.size = $
end virtual
;       struct DLGDATA
;       {
;               DLGTEMPLATE dialog;     /* window description */
;               void* DlgProc;          /* dialog procedure */
; /* int __stdcall DlgProc(DLGDATA* dlg, int msg, int param1, int param2); */
;               void* user_data;        /* arbitrary user data */
;               unsigned num_items;     /* number of items in the following array */
;               DLGITEMTEMPLATE items[]; /* array of dialog items */
;       }
; int __stdcall DialogBox(DLGDATA* dlg);
DialogBox:
        push    ManagerDlgProc
        push    dword [esp+8]
        call    GenericBox
        ret     8

ManagerDlgProc:
        mov     eax, [esp+8]
        dec     eax
        jz      .draw
        dec     eax
        jz      .key
        xor     eax, eax
        ret     16
.draw:
        call    .dodraw
        ret     16
.key:
; find item with focus
        add     ebx, dlgtemplate.size+12
        mov     ecx, [ebx-4]
        jecxz   .nobtns
@@:
        test    [ebx+dlgitemtemplate.flags], 4
        jnz     @f
        add     ebx, dlgitemtemplate.size
        loop    @b
@@:
.nobtns:
        mov     al, [esp+12]
        cmp     al, 1
        jz      .esc
        cmp     al, 0x1C
        jz      .enter
        cmp     al, 0xF
        jz      .tab
        cmp     al, 0x48
        jz      .up
        cmp     al, 0x4B
        jz      .left
        cmp     al, 0x4D
        jz      .right
        cmp     al, 0x50
        jz      .down
.ret0:
        xor     eax, eax
        ret     16
.esc:
        or      eax, -1
        ret     16
.enter:
        mov     eax, ebx
        ret     16
.tab:
        test    [ctrlstate], 3
        jnz     .shift_tab
.right:
.down:
        jecxz   .ret0
        and     byte [ebx+dlgitemtemplate.flags], not 4
        dec     ecx
        jz      .find_first_btn
@@:
        add     ebx, dlgitemtemplate.size
        cmp     [ebx+dlgitemtemplate.type], 2
        jz      .btn_found
        loop    @b
.find_first_btn:
        mov     ebx, [esp+4]
        add     ebx, dlgtemplate.size+12
@@:
        cmp     [ebx+dlgitemtemplate.type], 2
        jz      .btn_found
        add     ebx, dlgitemtemplate.size
        jmp     @b
.btn_found:
        or      byte [ebx+dlgitemtemplate.flags], 4
        mov     ebx, [esp+4]
        call    .dodraw
        call    draw_image
        xor     eax, eax
        ret     16
.shift_tab:
.left:
.up:
        jecxz   .ret0
        and     byte [ebx+dlgitemtemplate.flags], not 4
        mov     eax, [esp+4]
        sub     ecx, [eax+dlgtemplate.size+8]
        neg     ecx
        jz      .find_last_btn
@@:
        sub     ebx, dlgitemtemplate.size
        cmp     [ebx+dlgitemtemplate.type], 2
        loopnz  @b
        jz      .btn_found
.find_last_btn:
        mov     ebx, [eax+dlgtemplate.size+8]
        imul    ebx, dlgitemtemplate.size
        lea     ebx, [ebx+eax+dlgtemplate.size+12]
@@:
        sub     ebx, dlgitemtemplate.size
        cmp     [ebx+dlgitemtemplate.type], 2
        jnz     @b
        jmp     .btn_found

.dodraw:
        add     ebx, dlgtemplate.size+8
        mov     ecx, [ebx]
        add     ebx, 4
        jecxz   .done_draw
.draw_loop:
        push    ecx
        mov     eax, [ebx+dlgitemtemplate.type]
        dec     eax
        jz      .draw_text
        dec     eax
        jnz     .draw_loop_continue
        call    draw_button
        jmp     .draw_loop_continue
.draw_text:
        call    draw_static_text
.draw_loop_continue:
        pop     ecx
        add     ebx, dlgitemtemplate.size
        loop    .draw_loop
.done_draw:
        ret

draw_static_text:
; рисуем статический текст
        mov     ah, [dialog_main_color]
draw_text:
; определяем длину строки
        mov     esi, [ebx+dlgitemtemplate.data]
        test    esi, esi
        jz      .ret
        or      ecx, -1
@@:
        inc     ecx
        cmp     byte [ecx+esi], 0
        jnz     @b
; в ecx длина строки
        push    eax
        xor     eax, eax
        mov     edx, [ebx+dlgitemtemplate.x2]
        sub     edx, [ebx+dlgitemtemplate.x1]
        inc     edx
        cmp     ecx, edx
        jae     .text_draw
        mov     al, byte [ebx+dlgitemtemplate.flags]
        and     al, 3
        jz      .text_align_left
        cmp     al, 1
        jz      .text_align_center
; текст выровнен вправо
        mov     eax, edx
        sub     eax, ecx
        jmp     .text_draw
.text_align_center:
        mov     eax, edx
        sub     eax, ecx
        shr     eax, 1
        jmp     .text_draw
.text_align_left:
        xor     eax, eax
.text_draw:
        push    ecx
        mov     ecx, [esp+24]
        push    eax
        mov     eax, [ebx+dlgitemtemplate.x1]
        add     eax, [ecx+dlgtemplate.x]
        push    edx
        mov     edx, [ebx+dlgitemtemplate.y1]
        add     edx, [ecx+dlgtemplate.y]
        call    get_console_ptr
        pop     edx
        pop     ecx
        mov     ah, [esp+5]
        mov     al, ' '
        rep     stosw
        pop     ecx
        cmp     ecx, edx
        jbe     .text_copy
        cmp     edx, 3
        jb      .ret
        mov     al, '.'
        stosw
        stosw
        stosw
        add     esi, ecx
        mov     ecx, edx
        sub     ecx, 3
        sub     esi, ecx
.text_copy:
        jecxz   .ret
@@:
        lodsb
        stosw
        loop    @b
.ret:
        mov     ecx, [esp+20]
        mov     eax, [ecx+dlgtemplate.x]
        mov     edx, [ecx+dlgtemplate.y]
        add     eax, [ebx+dlgitemtemplate.x2]
        inc     eax
        add     edx, [ebx+dlgitemtemplate.y1]
        mov     ecx, edi
        call    get_console_ptr
        xchg    ecx, edi
        sub     ecx, edi
        shr     ecx, 1
        pop     eax
        mov     al, ' '
        rep     stosw
        ret

draw_button:
        mov     ah, [dialog_normal_btn_color]
        test    [ebx+dlgitemtemplate.flags], 4
        jz      @f
        mov     ah, [dialog_selected_btn_color]
@@:
        jmp     draw_text