Subversion Repositories Kolibri OS

;******************************************************************************

;   MAIN MENU by lisovin@26.ru

;   Some parts of code rewritten by Ivan Poddubny 

;

;   Compile with FASM for Menuet

;******************************************************************************

  include "lang.inc"

  include "..\..\..\macros.inc"

  BTN_HEIGHT  = 22

  TXT_Y       = (BTN_HEIGHT)/2-5

  use32

  org	  0x0

  db	 'MENUET01'	    ; 8 byte id

  dd	 0x01		  ; header version

  dd	 START		   ; start of code

  dd	 I_END		   ; size of image

  dd	 0x20000	 ; memory for app

  dd	 0x20000-1	     ; esp

  dd	 0x0 , 0x0	   ; I_Param , I_Icon

;******************************************************************************

;include "DEBUG.INC"             ; debug macros

START:		       ; start of execution

     mov  eax, 48	  ; load system colors

     mov  ebx, 3

     mov  ecx, sc

     mov  edx, sizeof.system_colors

     mcall

     mov  eax, 70	  ; load MENU.DAT

     mov  ebx, fileinfo

     mcall

     test eax, eax	   ; error ?

     jz  @f

     cmp  eax,6

     jnz  close

  @@:

     test ebx, ebx	   ; length = 0 ?

     jz   close

     mov  ecx, ebx

     mov  edi, mem_end

  newsearch:

     mov  al, '#'

     cld

     repne scasb

     test ecx, ecx	   ; if not found

     jz   close

     call get_number

     test ebx, ebx

     jnz  .number

     cmp  al, '#'

     je   search_end

   .number:

     shl  ebx, 4

     add  ebx, menu_data     ; pointer to process table

     mov  [ebx], edi

     inc  [processes]

     jmp  newsearch

  search_end:

     mov  [end_pointer], edi

     mov  ebx, [processes]

     dec  ebx

     shl  ebx, 4

     add  ebx, menu_data

  newprocess:

     xor  edx, edx

     mov  ecx, edi

     sub  ecx, [ebx]

     mov  al, 10

  newsearch1:

     std

     repne scasb

     test ecx, ecx

     je   endprocess

     cmp  [edi], byte 13

     jne  newsearch1

     inc  edx

     jmp  newsearch1

  endprocess:

     mov  esi, ebx

     add  esi, 4

     dec  edx

     mov  [esi], dl

     cmp  ebx, menu_data

     jbe  search_end1

     sub  ebx, 16

     jmp  newprocess

  search_end1:

     mov  eax, 14

     mcall

     sub  ax, 20

     mov  [menu_data + y_end],	    ax

     mov  [menu_data + x_start],  5

     mov  al, [menu_data + rows]

     mov  [menu_data + cur_sel],  al	 ; clear selection

     mov  [menu_data + prev_sel], al

     mov  [buffer], 0

  thread:

     mov  eax, [buffer]      ; identifier

     shl  eax, 4

     add  eax, menu_data

     mov  edi, eax

     mov  eax, 40	  ; set event mask

     mov  ebx, 100111b	       ; mouse + button + key + redraw

     mcall

     call draw_window

still:

    mov  eax, 23	 ; wait here for event

    mov  ebx, 5

    mcall

    test [close_now], 1      ; is close flag set?

    jnz  close

    cmp  eax, 1 	 ; redraw request ?

    je	   red

    cmp  eax, 2 	 ; key pressed ?

    je	   key

    cmp  eax, 3 	 ; button in buffer ?

    je	   button

    cmp  eax, 6 	 ; mouse event ?

    je	   mouse

    cmp  edi, menu_data

    je	   still	     ; if main process-ignored

  movzx  ebx, [edi + parent]	 ; parent id

    shl  ebx, 4

    add  ebx, menu_data      ; ebx = base of parent info

    call backconvert	     ; get my id in al

    cmp  al, [ebx + child]    ; if I'm not child of my parent, I shall die :)

    jne  close

    jmp  still

  red:		       ; redraw

    call draw_window

    jmp  still

  key:

;   mov  eax, 2

    mcall

    mov  al,  [edi + rows]     ; number of buttons

    cmp  ah,  178	  ; KEY_UP

    jne  .noup

    mov  ah,  [edi+cur_sel]

    mov  [edi+prev_sel], ah

    dec  byte [edi+cur_sel]

    jnz  redrawbut

    mov  [edi+cur_sel], al

    jmp  redrawbut

  .noup:

    cmp  ah, 177	 ; KEY_DOWN

    jne  .nodn

    mov  ah, [edi + cur_sel]

    mov  [edi + prev_sel], ah

    inc  [edi + cur_sel]

    cmp  [edi + cur_sel], al

    jna  redrawbut

    mov  [edi + cur_sel], 1

    jmp  redrawbut

  .nodn:

    cmp  ah, 13 	 ; ENTER

    jne  .noenter

    mov  ah, [edi + cur_sel]

    jmp  button1

  .noenter:

    cmp  ah, 27 	 ; ESC

    jne  still

    jmp  close

;           include "DEBUG.INC"

  button:	      ; BUTTON HANDLER

    mov  eax, 17	 ; get id

    mcall

  button1:

    mov  esi, edi

    push edi

    mov  edi, [edi + pointer]

; print "hello"

    mov  al, [esi + cur_sel]

    mov  [esi + prev_sel], al

    mov  [esi + cur_sel], ah

    pushad

    mov edi, esi

;    dph eax

    call draw_only_needed_buttons

    popad

    ; look for the next line  times;  = button_id

    push eax

  .next_string:

    call searchstartstring

    dec  ah

    jnz  .next_string

    pop  eax

    mov  ecx, 40

    mov  al, '/'

    cld

  repne  scasb

    test ecx, ecx	  ; if '/' not found

    je	   searchexit

    cmp  [edi], byte '@'     ; check for submenu

    je	   runthread

    dec  edi

    push edi		 ; pointer to start of filename

    call searchstartstring   ; search for next string

    sub  edi, 2 	 ; to last byte of string

    mov  ecx, edi

    pop  esi

    sub  ecx, esi

    inc  ecx		 ; length of filename

    mov  edi, fileinfo_start.name

    rep  movsb		   ; copy string

    mov  byte [edi], 0	       ; store terminator

    mov  eax, 70	 ; start program

    mov  ebx, fileinfo_start

    mcall

;    mcall 5,100

    or	   [close_now], 1      ; set close flag

    pop  edi

    mov  [mousemask], 0

    jmp  close

  searchexit:

    pop  edi

    jmp  still

  runthread:

    inc  edi

    push eax

    call get_number	     ; get number of this process

    pop  eax

    test ebx, ebx	   ; returned zero - main menu or not number

    jz	   searchexit

    mov  al, bl

    mov  ebx, [processes]

    dec  bl

    cmp  al, bl

    ja	   searchexit	       ; such process doesnt exist

    cmp  al, [esi + child]

    je	   searchexit	       ; such process already exists

    mov  [esi + child], al    ; this is my child

    mov  cx, [esi + x_start]

    add  cx, 141	  ; new x_start in cx

  movzx  edx, al

    shl  edx, 4

    add  edx, menu_data       ; edx points to child's base address

    mov  [edx + x_start], cx  ; xstart for new thread

    mov  cx,  [esi + y_end]   ; y_end in cx

    mov  bl,  [esi + rows]    ; number of buttons in bl

    sub  bl,  ah	  ; number of btn from bottom

  movzx  eax, al

    mov  [buffer], eax		; thread id in buffer

  movzx  ebx, bl

    push edx

    mov  eax, BTN_HEIGHT

    mul  ebx

    sub  cx,  ax	  ; new y_end for new thread

    pop  edx

    mov  [edx + y_end], cx    ; store y_end

    mov  edi, esi

    call backconvert	      ; get number of this process (al)

    mov  [edx + parent], al   ; store number of parent process

    mov  al, [edx + rows]

    mov  [edx + cur_sel], al  ; clear current selected element

    mov  [edx + prev_sel], al ; clear previous selected element

    mov  [edx + child], 0

    cmp  [thread_stack], 0x1e000

    jne  thread_stack_not_full

    mov  [thread_stack], 0xE000

thread_stack_not_full:

    add  [thread_stack], 0x2000 ; start new thread

    mov  eax, 51

    mov  ebx, 1

    mov  ecx, thread

    mov  edx, [thread_stack]

    mcall

    jmp  searchexit

 mouse: 	      ; MOUSE EVENT HANDLER

    mov  eax, 37

    mov  ebx, 2

    mcall

    test eax, eax	   ; check buttons state

    jnz  click

    mov  eax, 37

    mov  ebx, 1

    mcall

    ror  eax, 16	  ; eax = [ Y | X ] relative to window

    cmp  ax,  140	   ; pointer in window?

    ja	   noinwindow

;  in window 

    shr  eax, 16	  ; eax = [ 0 | Y ]

    xor  edx, edx

    mov  ebx, BTN_HEIGHT

    div  ebx

    inc  eax		  ; number of "button" in eax

  movzx  ebx, [edi + rows]    ; total strings in ebx

    cmp  eax, ebx

    ja	   noinwindow

    cmp  [edi + cur_sel], al

    je	   noredrawbut

    mov  bl, [edi + cur_sel]

   ;;;;;;

    cmp  [edi + child], 0

    jne  noredrawbut

   ;;;;;;

    mov  [edi + cur_sel], al

    mov  [edi + prev_sel], bl

  redrawbut:

    call draw_only_needed_buttons

  noredrawbut:

    call backconvert

    bts  [mousemask], eax

    jmp  still

  noinwindow:

    call backconvert

    btr  [mousemask], eax

    jmp  still

  click:

    cmp  [mousemask], 0  ; not in a window (i.e. menu)

    je	   close

    jmp  still

  close:

        movzx   ebx, [edi+parent]       ; parent id

        shl     ebx, 4

        add     ebx, menu_data          ; ebx = base of parent info

        call    backconvert

        cmp     [ebx + child], al       ; if i am the child of my parent...

        jnz     @f

        mov     [ebx + child], -1       ; ...my parent now has no children

@@:

        or      eax, -1                 ; close this thread

        mov     [edi + child], al       ; my child is not mine

        mcall

  backconvert:		  ; convert from pointer to process id

    mov  eax, edi

    sub  eax, menu_data

    shr  eax, 4

    ret

;==================================

; get_number

;    load number from [edi] to ebx

;==================================

  get_number:

    push edi

    xor  eax, eax

    xor  ebx, ebx

   .get_next_char:

    mov  al, [edi]

    inc  edi

    cmp  al, '0'

    jb	   .finish

    cmp  al, '9'

    ja	   .finish

    sub  al, '0'

    imul ebx, 10

    add  ebx, eax

    jmp  .get_next_char

   .finish:

    pop  edi

    ret

;   *********************************************

;   *******  WINDOW DEFINITIONS AND DRAW ********

;   *********************************************

draw_window:

    mov  eax, 12	   ; function 12:tell os about windowdraw

    mov  ebx, 1 	   ; 1, start of draw

    mcall

  movzx  ebx, [edi + rows]

   imul  eax, ebx, BTN_HEIGHT	    ; eax = height of window

  movzx  ecx, [edi + y_end]

    sub  ecx, eax	    ; ecx = Y_START

    shl  ecx, 16

    add  ecx, eax	    ; ecx = [ Y_START | Y_SIZE ]

    dec  ecx

  movzx  ebx, [edi + x_start]

    shl  ebx, 16

    mov  bx,  140	    ; ebx = [ X_START | X_SIZE ]

    xor  eax, eax	    ; function 0 : define and draw window

    mov  edx, 0x01000000       ; color of work area RRGGBB,8->color gl

    mov  esi, edx	    ; unmovable window

    mcall

    call draw_all_buttons

    mov  eax,12

    mov  ebx,2

    mcall

    ret

 draw_all_buttons:

    xor  edx, edx

  .new_button:

    call draw_one_button

    inc  edx

    cmp  dl, [edi + rows]

    jb	   .new_button

    ret

 draw_only_needed_buttons:

    xor  edx, edx

    mov  dl, [edi + cur_sel]

    dec  dl

    call draw_one_button

    mov  dl, [edi + prev_sel]

    dec  dl

    call draw_one_button

    ret

 draw_one_button:

 ; receives number of button in dl

    push edx;ad

    mov  eax, 8

    mov  ebx, 140

  movzx  ecx, dl

    imul ecx, BTN_HEIGHT

    shl  ecx, 16

    add  ecx, BTN_HEIGHT-1

;   edx = button identifier

    mov  esi, [sc.work]

    cmp  esi, 0xdfdfdf

    jb   nocorrect

    sub  esi, 0x1b1b1b

  nocorrect:

    inc  dl

    cmp  [edi + cur_sel], dl

    jne  .nohighlight

    add  esi, 0x1a1a1a

  .nohighlight:

    or	   edx, 0x20000000

    mcall

    movzx edx, dl

    dec  dl

    imul ebx, edx, BTN_HEIGHT

    add  ebx, (4 shl 16) + TXT_Y

  movzx  ecx, dl

    inc  ecx

    mov  edx, [edi + pointer]

  .findline:

    cmp  byte [edx], 13

    je	   .linefound

    inc  edx

    jmp  .findline

  .linefound:

    inc  edx

    cmp  byte [edx], 10

    jne  .findline

    dec  ecx

    jnz  .findline

    mov  ecx, [sc.work_text]

    mov  eax, 4

    mov  esi, 21

    mcall

    pop  edx;ad

    ret

 searchstartstring:

    mov  ecx, 40

    mov  al, 13

    cld

  repne  scasb

    cmp  byte [edi], 10

    jne  searchstartstring

    ret

;*** DATA AREA ****************************************************************

thread_stack   dd   0xE000

processes      dd   0

fileinfo:

 .subfunction	 dd   0 	      ; 0=READ

 .start 	 dd   0 	      ; start byte

 .size_high	 dd   0 	      ; rezerved

 .size		 dd   0x10000-mem_end ; blocks to read

 .return	 dd   mem_end	      ; return data pointer

 .name:

     db   '/sys/MENU.DAT',0   ; ASCIIZ dir & filename

fileinfo_start:

 .subfunction	 dd   7 	 ; 7=START APPLICATION

 .flags 	 dd   0 	 ; flags

 .params	 dd   0x0	 ; nop

 .rezerved	 dd   0x0	 ; nop

 .rezerved_1	 dd   0x0	 ; nop

 .name:

   times 50 db ' '

I_END:

close_now      dd ?   ; close all processes immediately

end_pointer    dd ?

buffer		 dd ?

mousemask      dd ?   ; mask for mouse pointer location

sc system_colors

menu_data:

  rb 0x4000  ;x10000

virtual at 0	      ; PROCESSES TABLE (located at menu_data)

  pointer      dd ?   ; +0    pointer in file

  rows		 db ?	; +4    numer of strings

  x_start      dw ?   ; +5    x start

  y_end        dw ?   ; +7    y end

  child        db ?   ; +9    id of child menu

  parent       db ?   ; +10   id of parent menu

  cur_sel      db ?   ; +11   current selection

  prev_sel     db ?   ; +12   previous selection

  rb	       16-$+1 ; [16 bytes per element]

end virtual

mem_end: