;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;;
;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
$Revision: 2384 $
;==============================================================================
;///// public functions ///////////////////////////////////////////////////////
;==============================================================================
button.MAX_BUTTONS = 4095
struct SYS_BUTTON
pslot dw ?
id_lo dw ?
left dw ?
width dw ?
top dw ?
height dw ?
id_hi dw ?
dw ?
ends
align 4
;------------------------------------------------------------------------------
syscall_button: ;///// system function 8 //////////////////////////////////////
;------------------------------------------------------------------------------
;? Define/undefine GUI button object
;------------------------------------------------------------------------------
;; Define button:
;> ebx = pack[16(x), 16(width)]
;> ecx = pack[16(y), 16(height)]
;> edx = pack[8(flags), 24(button identifier)]
;> flags bits:
;> 7 (31) = 0
;> 6 (30) = don't draw button
;> 5 (29) = don't draw button frame when pressed
;> esi = button color
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Undefine button:
;> edx = pack[8(flags), 24(button identifier)]
;> flags bits:
;> 7 (31) = 1
;------------------------------------------------------------------------------
; do we actually need to undefine the button?
test edx, 0x80000000
jnz .remove_button
; do we have free button slots available?
mov edi, [BTN_ADDR]
mov eax, [edi]
cmp eax, button.MAX_BUTTONS
jge .exit
; does it have positive size? (otherwise it doesn't have sense)
or bx, bx
jle .exit
or cx, cx
jle .exit
; make coordinates clientbox-relative
push eax
mov eax, [current_slot]
rol ebx, 16
add bx, word[eax + APPDATA.wnd_clientbox.left]
rol ebx, 16
rol ecx, 16
add cx, word[eax + APPDATA.wnd_clientbox.top]
rol ecx, 16
pop eax
; basic checks passed, define the button
push ebx ecx edx
inc eax
mov [edi], ax
shl eax, 4
add edi, eax
; NOTE: this code doesn't rely on SYS_BUTTON struct, please revise it
; if you change something
mov ax, [CURRENT_TASK]
stosw
mov ax, dx
stosw ; button id number: bits 0-15
mov eax, ebx
rol eax, 16
stosd ; x start | x size
mov eax, ecx
rol eax, 16
stosd ; y start | y size
mov eax, edx
shr eax, 16
stosw ; button id number: bits 16-31
pop edx ecx ebx
; do we also need to draw the button?
test edx, 0x40000000
jnz .exit
; draw button body
pushad
; calculate window-relative coordinates
movzx edi, cx
shr ebx, 16
shr ecx, 16
mov eax, [TASK_BASE]
add ebx, [eax - twdw + WDATA.box.left]
add ecx, [eax - twdw + WDATA.box.top]
mov eax, ebx
shl eax, 16
mov ax, bx
add ax, word[esp + 16]
mov ebx, ecx
shl ebx, 16
mov bx, cx
; calculate initial color
mov ecx, esi
cmp [buttontype], 0
je @f
call button._.incecx2
; set button height counter
@@:
mov edx, edi
.next_line:
call button._.button_dececx
push edi
xor edi, edi
call [draw_line]
pop edi
add ebx, 0x00010001
dec edx
jnz .next_line
popad
; draw button frame
push ebx ecx
; calculate window-relative coordinates
shr ebx, 16
shr ecx, 16
mov eax, [TASK_BASE]
add ebx, [eax - twdw + WDATA.box.left]
add ecx, [eax - twdw + WDATA.box.top]
; top border
mov eax, ebx
shl eax, 16
mov ax, bx
add ax, [esp + 4]
mov ebx, ecx
shl ebx, 16
mov bx, cx
push ebx
xor edi, edi
mov ecx, esi
call button._.incecx
call [draw_line]
; bottom border
movzx edx, word[esp + 4 + 0]
add ebx, edx
shl edx, 16
add ebx, edx
mov ecx, esi
call button._.dececx
call [draw_line]
; left border
pop ebx
push edx
mov edx, eax
shr edx, 16
mov ax, dx
mov edx, ebx
shr edx, 16
mov bx, dx
add bx, [esp + 4 + 0]
pop edx
mov ecx, esi
call button._.incecx
call [draw_line]
; right border
mov dx, [esp + 4]
add ax, dx
shl edx, 16
add eax, edx
add ebx, 0x00010000
mov ecx, esi
call button._.dececx
call [draw_line]
pop ecx ebx
.exit:
ret
; FIXME: mutex needed
syscall_button.remove_button:
and edx, 0x00ffffff
mov edi, [BTN_ADDR]
mov ebx, [edi]
inc ebx
imul esi, ebx, sizeof.SYS_BUTTON
add esi, edi
xor ecx, ecx
add ecx, -sizeof.SYS_BUTTON
add esi, sizeof.SYS_BUTTON
.next_button:
dec ebx
jz .exit
add ecx, sizeof.SYS_BUTTON
add esi, -sizeof.SYS_BUTTON
; does it belong to our process?
mov ax, [CURRENT_TASK]
cmp ax, [esi + SYS_BUTTON.pslot]
jne .next_button
; does the identifier match?
mov eax, dword[esi + SYS_BUTTON.id_hi - 2]
mov ax, [esi + SYS_BUTTON.id_lo]
and eax, 0x00ffffff
cmp edx, eax
jne .next_button
; okay, undefine it
push ebx
mov ebx, esi
lea eax, [esi + sizeof.SYS_BUTTON]
call memmove
dec dword[edi]
add ecx, -sizeof.SYS_BUTTON
pop ebx
jmp .next_button
.exit:
ret
align 4
;------------------------------------------------------------------------------
sys_button_activate_handler: ;/////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
;> eax = pack[8(process slot), 24(button id)]
;> ebx = pack[16(button x coord), 16(button y coord)]
;> cl = mouse button mask this system button was pressed with
;------------------------------------------------------------------------------
call button._.find_button
or eax, eax
jz .exit
mov ebx, dword[eax + SYS_BUTTON.id_hi - 2]
call button._.negative_button
.exit:
ret
align 4
;------------------------------------------------------------------------------
sys_button_deactivate_handler: ;///////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
;> eax = pack[8(process slot), 24(button id)]
;> ebx = pack[16(button x coord), 16(button y coord)]
;> cl = mouse button mask this system button was pressed with
;------------------------------------------------------------------------------
call button._.find_button
or eax, eax
jz .exit
mov ebx, dword[eax + SYS_BUTTON.id_hi - 2]
call button._.negative_button
.exit:
ret
align 4
;------------------------------------------------------------------------------
sys_button_perform_handler: ;//////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
;> eax = pack[8(process slot), 24(button id)]
;> ebx = pack[16(button x coord), 16(button y coord)]
;> cl = mouse button mask this system button was pressed with
;------------------------------------------------------------------------------
shl eax, 8
mov al, cl
movzx ebx, byte[BTN_COUNT]
mov [BTN_BUFF + ebx * 4], eax
inc bl
mov [BTN_COUNT], bl
ret
;==============================================================================
;///// private functions //////////////////////////////////////////////////////
;==============================================================================
;------------------------------------------------------------------------------
button._.find_button: ;////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Find system button by specified process slot, id and coordinates
;------------------------------------------------------------------------------
;> eax = pack[8(process slot), 24(button id)] or 0
;> ebx = pack[16(button x coord), 16(button y coord)]
;------------------------------------------------------------------------------
;< eax = pointer to SYS_BUTTON struct or 0
;------------------------------------------------------------------------------
push ecx edx esi edi
mov edx, eax
shr edx, 24
and eax, 0x0ffffff
mov edi, [BTN_ADDR]
mov ecx, [edi]
imul esi, ecx, sizeof.SYS_BUTTON
add esi, edi
inc ecx
add esi, sizeof.SYS_BUTTON
.next_button:
dec ecx
jz .not_found
add esi, -sizeof.SYS_BUTTON
; does it belong to our process?
cmp dx, [esi + SYS_BUTTON.pslot]
jne .next_button
; does id match?
mov edi, dword[esi + SYS_BUTTON.id_hi - 2]
mov di, [esi + SYS_BUTTON.id_lo]
and edi, 0x0ffffff
cmp eax, edi
jne .next_button
; does coordinates match?
mov edi, dword[esi + SYS_BUTTON.left - 2]
mov di, [esi + SYS_BUTTON.top]
cmp ebx, edi
jne .next_button
; okay, return it
mov eax, esi
jmp .exit
.not_found:
xor eax, eax
.exit:
pop edi esi edx ecx
ret
;------------------------------------------------------------------------------
button._.dececx: ;/////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
sub cl, 0x20
jnc @f
xor cl, cl
@@:
sub ch, 0x20
jnc @f
xor ch, ch
@@:
rol ecx, 16
sub cl, 0x20
jnc @f
xor cl, cl
@@:
rol ecx, 16
ret
;------------------------------------------------------------------------------
button._.incecx: ;/////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
add cl, 0x20
jnc @f
or cl, -1
@@:
add ch, 0x20
jnc @f
or ch, -1
@@:
rol ecx, 16
add cl, 0x20
jnc @f
or cl, -1
@@:
rol ecx, 16
ret
;------------------------------------------------------------------------------
button._.incecx2: ;////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
add cl, 0x14
jnc @f
or cl, -1
@@:
add ch, 0x14
jnc @f
or ch, -1
@@:
rol ecx, 16
add cl, 0x14
jnc @f
or cl, -1
@@:
rol ecx, 16
ret
;------------------------------------------------------------------------------
button._.button_dececx: ;//////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
cmp [buttontype], 1
jne .finish
push eax
mov al, 1
cmp edi, 20
jg @f
mov al, 2
@@:
sub cl, al
jnc @f
xor cl, cl
@@:
sub ch, al
jnc @f
xor ch, ch
@@:
rol ecx, 16
sub cl, al
jnc @f
xor cl, cl
@@:
rol ecx, 16
pop eax
.finish:
ret
;------------------------------------------------------------------------------
button._.negative_button: ;////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Invert system button border
;------------------------------------------------------------------------------
; if requested, do not display button border on press.
test ebx, 0x20000000
jnz .exit
pushad
xchg esi, eax
movzx ecx, [esi + SYS_BUTTON.pslot]
shl ecx, 5
add ecx, window_data
mov eax, dword[esi + SYS_BUTTON.left]
mov ebx, dword[esi + SYS_BUTTON.top]
add eax, [ecx + WDATA.box.left]
add ebx, [ecx + WDATA.box.top]
push eax ebx
pop edx ecx
rol eax, 16
rol ebx, 16
add ax, cx
add bx, dx
mov esi, 0x01000000
call draw_rectangle.forced
popad
.exit:
ret