;******************************************************************************
; MAIN MENU by lisovin@26.ru
; Some parts of code rewritten by Ivan Poddubny <ivan-yar@bk.ru>
;
; 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
int 0x40
mov eax, 70 ; load MENU.DAT
mov ebx, fileinfo
int 0x40
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
int 0x40
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
int 0x40
call draw_window
still:
mov eax, 23 ; wait here for event
mov ebx, 5
int 0x40
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
int 0x40
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
int 0x40
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 <ah> times; <ah> = 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
int 0x40
; 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]
int 0x40
jmp searchexit
mouse: ; MOUSE EVENT HANDLER
mov eax, 37
mov ebx, 2
int 0x40
test eax, eax ; check buttons state
jnz click
mov eax, 37
mov ebx, 1
int 0x40
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:
or eax, -1 ; close this thread
mov [edi + child], al ; my child is not mine
int 0x40
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
int 0x40
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
int 0x40
call draw_all_buttons
mov eax,12
mov ebx,2
int 0x40
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]
inc dl
cmp [edi + cur_sel], dl
jne .nohighlight
add esi, 0x101010
.nohighlight:
or edx, 0x20000000
int 0x40
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
int 0x40
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 '/RD/1/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: