kolibrios/programs/develop/libraries/box_lib/trunk/progressbar.mac

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macro use_progressbar
{
pb equ [ebp + 4 + 8*4]
align 16
progressbar_draw:
pushad
mov ebp, esp
; draw frame
push ebp
mov [.last_esp], esp
mov eax, pb
mov esi, [eax + PB_LEFT]
mov edi, [eax + PB_TOP]
mov ebp, [eax + PB_WIDTH]
add ebp, esi
dec ebp
mov esp, [eax + PB_HEIGHT]
add esp, edi
dec esp
mov edx, [eax + PB_FRAME_COLOR]
mov eax, 38
mov ebx, esi
shl ebx, 16
add ebx, ebp
mov ecx, edi
shl ecx, 16
add ecx, edi
int 64
mov ecx, esp
shl ecx, 16
add ecx, esp
int 64
mov bx, si
mov ecx, edi
shl ecx, 16
add ecx, esp
int 64
mov ebx, ebp
shl ebx, 16
add ebx, ebp
int 64
mov esp, [.last_esp]
pop ebp
; if min > max then .skip
mov eax, pb
mov edx, [eax + PB_MAX]
mov ecx, [eax + PB_MIN]
cmp ecx, edx
; jg .skip
jne .min_no_eq_max
dec edx
.min_no_eq_max:
; draw all progress rectangle
call get_progress_width
mov edi, eax
mov eax, pb
mov ebx, [eax + PB_LEFT]
inc ebx
shl ebx, 16
add ebx, edi
mov ecx, [eax + PB_TOP]
inc ecx
shl ecx, 16
add ecx, [eax + PB_HEIGHT]
dec ecx
dec ecx
mov edx, [eax + PB_PROGRESS_COLOR]
mov eax, 13
int 64
; draw last part of non-progress rectangle
; edi = pW, esi = W - 2
sub esi, edi ; width
shr ebx, 16
add ebx, edi
shl ebx, 16
add ebx, esi
mov esi, pb
mov edx, [esi + PB_BACK_COLOR]
int 64
; .skip:
popad
ret 4
.last_esp dd 0
align 16
get_progress_width:
; pW = (W-2)(value - min) / (max - min)
mov esi, [eax + PB_WIDTH]
dec esi
dec esi
mov eax, [eax + PB_VALUE]
sub eax, ecx
imul eax, esi
neg ecx
add ecx, edx
xor edx, edx
div ecx
ret
align 16
progressbar_progress:
pushad
mov ebp, esp
; if min > max then .skip
mov eax, pb
mov edx, [eax + PB_MAX]
mov ecx, [eax + PB_MIN]
cmp ecx, edx
; jg .skip
jne .min_no_eq_max1
dec edx
.min_no_eq_max1:
call get_progress_width
mov edi, eax
; increase value
mov eax, pb
mov edx, [eax + PB_MAX]
mov ecx, [eax + PB_VALUE]
inc ecx
; if value > max then value = max
cmp ecx, edx
jng .next
mov ecx, edx
.next:
mov [eax + PB_VALUE], ecx
; draw new part of progress rectangle
mov eax, pb
mov ecx, [eax + PB_MIN]
cmp ecx, edx
jne .min_no_eq_max2
dec edx
.min_no_eq_max2:
call get_progress_width
mov esi, eax
; edi = last pW, esi = new pW
mov eax, pb
mov ebx, [eax + PB_LEFT]
inc ebx
add ebx, edi
shl ebx, 16
add ebx, esi
sub ebx, edi
mov ecx, [eax + PB_TOP]
inc ecx
shl ecx, 16
add ecx, [eax + PB_HEIGHT]
dec ecx
dec ecx
mov edx, [eax + PB_PROGRESS_COLOR]
mov eax, 13
int 64
; .skip:
popad
ret 4
restore pb
}