Subversion Repositories Kolibri OS

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Ignore whitespace Rev 1361 → Rev 1362

/kernel/trunk/gui/window.inc
1,1815 → 1,1824
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;;
;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
$Revision$
 
 
get_titlebar_height: ; edi = window draw_data pointer
mov al,[edi+WDATA.fl_wstyle]
and al,0x0F
cmp al,0x03
jne @f
mov eax,[_skinh]
ret
@@: mov eax,21
ret
 
get_rolledup_height: ; edi = window draw_data pointer
mov al,[edi+WDATA.fl_wstyle]
and al,0x0F
cmp al,0x03
jb @f
mov eax,[_skinh]
add eax,3
ret
@@: or al,al
jnz @f
mov eax,21
ret
@@: mov eax,21+2
ret
 
 
setwindowdefaults:
pushad
 
xor eax,eax
mov ecx,WIN_STACK
@@:
inc eax
add ecx,2
mov [ecx+0x000],ax ; process no
mov [ecx+0x400],ax ; positions in stack
cmp ecx,WIN_POS-2 ; the more high, the more surface
jnz @b
 
popad
ret
 
 
 
; eax = cx
; ebx = cy
; ecx = ex
; edx = ey
; èäåÿ: ïåðåáðàòü âñå îêíà, íà÷èíàÿ ñ ñàìîãî íèæíåãî,
; è äëÿ ïîïàâøèõ â çàäàííóþ îáëàñòü
; ÷àñòåé îêîí âûçâàòü setscreen
align 4
calculatescreen:
pushad
pushfd
cli
 
push edx ecx ebx eax
 
mov esi, 1
call setscreen
 
mov ebp, [TASK_COUNT] ; number of processes
cmp ebp, 1
jbe .finish
align 4
.new_wnd:
movzx edi, word [WIN_POS + esi * 2]
shl edi, 5
 
cmp [CURRENT_TASK+edi+TASKDATA.state], byte 9
je .not_wnd
 
add edi, window_data
test [edi+WDATA.fl_wstate], WSTATE_MINIMIZED
jnz .not_wnd
 
mov eax,[edi+WDATA.box.left]
cmp eax, [esp+RECT.right]
ja .out_of_bounds
mov ebx,[edi+WDATA.box.top]
cmp ebx, [esp+RECT.bottom]
ja .out_of_bounds
mov ecx,[edi+WDATA.box.width]
add ecx, eax
cmp ecx, [esp+RECT.left]
jb .out_of_bounds
mov edx,[edi+WDATA.box.height]
add edx, ebx
cmp edx, [esp+RECT.top]
jb .out_of_bounds
 
cmp eax, [esp+RECT.left]
jae @f
mov eax, [esp+RECT.left]
@@:
cmp ebx, [esp+RECT.top]
jae @f
mov ebx, [esp+RECT.top]
@@:
cmp ecx, [esp+RECT.right]
jbe @f
mov ecx, [esp+RECT.right]
@@:
cmp edx, [esp+RECT.bottom]
jbe @f
mov edx, [esp+RECT.bottom]
@@:
 
push esi
movzx esi, word [WIN_POS + esi * 2]
call setscreen
pop esi
 
.not_wnd:
.out_of_bounds:
inc esi
dec ebp
jnz .new_wnd
.finish:
 
pop eax ebx ecx edx
 
popfd
popad
ret
 
 
 
virtual at esp
ff_x dd ?
ff_y dd ?
ff_width dd ?
ff_xsz dd ?
ff_ysz dd ?
ff_scale dd ?
end virtual
 
align 4
; ðåçåðâèðóåò ìåñòî ïîä îêíî çàäàííîãî ïðîöåññà
setscreen:
; eax x start
; ebx y start
; ecx x end
; edx y end
; esi process number
pushad
; \begin{diamond}[29.08.2006]
cmp esi, 1
jz @f
mov edi, esi
shl edi, 5
cmp [edi+window_data+WDATA.box.width], 0
jnz @f
cmp [edi+window_data+WDATA.box.height], 0
jz .ret
@@:
; \end{diamond}[29.08.2006]
mov edi, esi ;;;word [esi*2+WIN_POS]
shl edi, 8
add edi, SLOT_BASE ; address of random shaped window area
cmp [edi+APPDATA.wnd_shape], dword 0
jne .free_form
 
; get x&y size
sub ecx, eax
sub edx, ebx
inc ecx
inc edx
 
; get WinMap start
mov edi, [Screen_Max_X] ; screen_sx
inc edi
imul edi, ebx
add edi, eax
add edi, [_WinMapAddress]
 
.new_y:
push ecx ; sx
push edx
 
mov edx, esi
align 4
.new_x:
mov byte [edi], dl
inc edi
dec ecx
jnz .new_x
 
pop edx
pop ecx
add edi, [Screen_Max_X]
inc edi
sub edi, ecx
dec edx
jnz .new_y
.ret:
popad
ret
.read_byte:
;eax - address
;esi - slot
push eax
push ecx
push edx
push esi
 
; mov edx,eax
; mov eax,esi
xchg eax,esi
lea ecx,[esp+12]
mov edx,1
call read_process_memory
pop esi
pop edx
pop ecx
pop eax
ret
.free_form:
 
; for (y=0; y <= x_size; y++)
; for (x=0; x <= x_size; x++)
; if (shape[coord(x,y,scale)]==1)
; set_pixel(x, y, process_number);
 
sub ecx, eax
sub edx, ebx
inc ecx
inc edx
 
push dword [edi+APPDATA.wnd_shape_scale] ; push scale first -> for loop
 
; get WinMap start -> ebp
push eax
mov eax, [Screen_Max_X] ; screen_sx
inc eax
imul eax, ebx
add eax, [esp]
add eax, [_WinMapAddress]
mov ebp, eax
 
mov edi, [edi+APPDATA.wnd_shape]
pop eax
 
; eax = x_start
; ebx = y_start
; ecx = x_size
; edx = y_size
; esi = process_number
; edi = &shape
; [scale]
push edx ecx ; for loop - x,y size
 
mov ecx, esi
shl ecx, 5
mov edx, [window_data+ecx+WDATA.box.top]
push [window_data+ecx+WDATA.box.width] ; for loop - width
mov ecx, [window_data+ecx+WDATA.box.left]
sub ebx, edx
sub eax, ecx
push ebx eax ; for loop - x,y
 
add [ff_xsz], eax
add [ff_ysz], ebx
 
mov ebx, [ff_y]
 
.ff_new_y:
mov edx, [ff_x]
 
.ff_new_x:
; -- body --
mov ecx, [ff_scale]
mov eax, [ff_width]
inc eax
shr eax, cl
push ebx edx
shr ebx, cl
shr edx, cl
imul eax, ebx
add eax, edx
pop edx ebx
add eax, edi
call .read_byte
test al,al
jz @f
mov eax, esi
mov [ebp], al
@@:
; -- end body --
inc ebp
inc edx
cmp edx, [ff_xsz]
jb .ff_new_x
sub ebp, [ff_xsz]
add ebp, [ff_x]
add ebp, [Screen_Max_X] ; screen.x
inc ebp
inc ebx
cmp ebx, [ff_ysz]
jb .ff_new_y
 
add esp, 24
popad
ret
 
 
iglobal
align 4
f48call:
dd display_settings.00
dd display_settings.01
dd display_settings.02
dd display_settings.03
dd display_settings.04
dd display_settings.05
dd display_settings.06
dd display_settings.07
dd display_settings.08
endg
 
display_settings:
 
; ebx = 0 ; DISPLAY redraw
; ebx = 0 ; all
;
; ebx = 1 ; BUTTON type
; ebx = 0 ; flat
; ebx = 1 ; 3D
; ebx = 2 ; set WINDOW colours
; ebx = pointer to table
; ecx = number of bytes define
; ebx = 3 ; get WINDOW colours
; ebx = pointer to table
; ecx = number of bytes wanted
; ebx = 4 ; get skin height
; input : nothing
; output : eax = skin height in pixel
; ebx = 5 ; get screen workarea
; input : nothing
; output : eax = [left]*65536+[right]
; ebx = [top]*65536+[bottom]
; ebx = 6 ; set screen workarea
; input : ecx = [left]*65536+[right]
; edx = [top]*65536+[bottom]
; output : nothing
; ebx = 7 ; get skin margins
; input : nothing
; output : eax = [left]*65536+[right]
; ebx = [top]*65536+[bottom]
; ebx = 8 ; set window skin
; input : ecx = pointer to file info block
; output : eax = FS error code
cmp ebx,8
ja .fail
jmp dword [f48call+ebx*4]
.00:
 
; redraw display
xor eax,eax
inc ebx
cmp [windowtypechanged],dword ebx ;ebx=1
jne .fail
mov [windowtypechanged],dword eax ;eax=0
.redraw_screen_direct:
xor eax,eax
mov [dlx],dword eax
mov [dly],dword eax
mov eax,[Screen_Max_X]
mov [dlxe],eax
mov eax,[Screen_Max_Y]
mov [dlye],eax
mov eax,window_data
jmp redrawscreen
.fail:
ret
.01:
; button type
and ecx,1
cmp ecx,[buttontype]
je .01_ex
mov [buttontype],ecx
mov [windowtypechanged],dword ebx ;eax=1
.01_ex:
ret
 
.02:
; set common window colours
dec ebx
mov [windowtypechanged],dword ebx ;eax=1
mov esi,ecx
and edx,127
mov edi,common_colours
mov ecx,edx
; cld not need because cld is set previous call
rep movsb
ret
 
.03:
; get common window colours
mov edi,ecx
and edx,127
mov esi,common_colours
mov ecx,edx
; cld not need because cld is set previous call
rep movsb
ret
 
.04:
; get skin height
mov eax,[_skinh]
mov [esp+32],eax
ret
 
.05:
; get screen workarea
mov eax,[screen_workarea.left-2]
mov ax,word[screen_workarea.right]
mov [esp+32],eax
mov eax,[screen_workarea.top-2]
mov ax,word[screen_workarea.bottom]
mov [esp+20],eax
ret
 
.06:
; set screen workarea
mov edi,dword[Screen_Max_X]
movsx eax,word[esp+28+2] ;ecx in the stack
movsx ebx,word[esp+28]
cmp eax,ebx
jge .lp1
or eax,eax;[Screen_Max_X]
jl @f
mov [screen_workarea.left],eax
@@: cmp ebx,edi ;[Screen_Max_X]
jg .lp1
mov [screen_workarea.right],ebx
.lp1: movsx eax,word[esp+24+2] ;edx in the stack
movsx ebx,word[esp+24]
cmp eax,ebx
jge .lp2
or eax,eax;[0xFE04]
jl @f
mov [screen_workarea.top],eax
@@: cmp ebx,edi ;[Screen_Max_Y]
jg .lp2
mov [screen_workarea.bottom],ebx
.lp2: call repos_windows
xor eax, eax
xor ebx, ebx
mov ecx, [Screen_Max_X]
mov edx, [Screen_Max_Y]
jmp calculatescreen
 
.07:
; get skin margins
mov eax,dword[_skinmargins+0]
mov [esp+32],eax
mov eax,dword[_skinmargins+4]
mov [esp+20],eax
ret
 
.08:
; set window skin
mov ebx, ecx
call read_skin_file
 
mov [esp+32], eax
test eax, eax
jnz .ret
xor eax, eax
xor ebx, ebx
mov ecx, [Screen_Max_X]
mov edx, [Screen_Max_Y]
call calculatescreen
jmp .redraw_screen_direct
.ret:
ret
 
 
repos_windows:
mov ecx,[TASK_COUNT]
mov edi, window_data+0x20*2
call force_redraw_background
dec ecx
jge @f
ret
@@: mov [edi+WDATA.fl_redraw],1
test [edi+WDATA.fl_wstate],WSTATE_MAXIMIZED
jz .lp2
mov eax,[screen_workarea.left]
mov [edi+WDATA.box.left],eax
sub eax,[screen_workarea.right]
neg eax
mov [edi+WDATA.box.width],eax
mov eax,[screen_workarea.top]
mov [edi+WDATA.box.top],eax
test [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP
jnz .lp1
sub eax,[screen_workarea.bottom]
neg eax
mov [edi+WDATA.box.height],eax
.lp1:
 
call set_window_clientbox
add edi,0x20
loop @b
ret
.lp2: mov eax,[edi+WDATA.box.left]
add eax,[edi+WDATA.box.width]
mov ebx,[Screen_Max_X]
; inc ebx
cmp eax,ebx
jle .lp4
mov eax,[edi+WDATA.box.width]
sub eax,ebx
jle .lp3
mov [edi+WDATA.box.width],ebx
.lp3: sub ebx,[edi+WDATA.box.width]
mov [edi+WDATA.box.left],ebx
.lp4: mov eax,[edi+WDATA.box.top]
add eax,[edi+WDATA.box.height]
mov ebx,[Screen_Max_Y]
; inc ebx
cmp eax,ebx
jle .lp6
mov eax,[edi+WDATA.box.height]
sub eax,ebx
jle .lp5
mov [edi+WDATA.box.height],ebx
.lp5: sub ebx,[edi+WDATA.box.height]
mov [edi+WDATA.box.top],ebx
.lp6: jmp .lp1
 
uglobal
common_colours:
times 128 db 0x0
endg
 
 
 
 
check_window_position:
 
pushad ; window inside screen ?
 
mov eax, [edi+WDATA.box.left]
mov ebx, [edi+WDATA.box.top]
mov ecx, [edi+WDATA.box.width]
mov edx, [edi+WDATA.box.height]
 
cmp ecx,[Screen_Max_X] ; check x size
jbe x_size_ok
mov ecx,[Screen_Max_X]
mov [edi+WDATA.box.width],ecx
 
x_size_ok:
 
cmp edx,[Screen_Max_Y] ; check y size
jbe y_size_ok
mov edx,[Screen_Max_Y]
mov [edi+WDATA.box.height],edx
 
y_size_ok:
 
cmp eax,0 ; check x pos
jnle @f
xor eax,eax
mov [edi+WDATA.box.left],eax
jmp x_pos_ok
@@:
add eax,ecx
cmp eax,[Screen_Max_X]
jbe x_pos_ok
mov eax,[Screen_Max_X]
sub eax,ecx
mov [edi+WDATA.box.left],eax
 
x_pos_ok:
 
cmp ebx,0 ; check x pos
jnle @f
xor ebx,ebx
mov [edi+WDATA.box.top],ebx
jmp y_pos_ok
@@:
add ebx,edx
cmp ebx,[Screen_Max_Y]
jbe y_pos_ok
mov ebx,[Screen_Max_Y]
sub ebx,edx
mov [edi+WDATA.box.top],ebx
 
y_pos_ok:
 
popad
 
ret
 
 
uglobal
new_window_starting dd 0
endg
 
 
sys_window_mouse:
 
push eax
 
mov eax,[timer_ticks]
cmp [new_window_starting],eax
jb swml1
 
mov [MOUSE_BACKGROUND],byte 0 ; no mouse background
mov [DONT_DRAW_MOUSE],byte 0 ; draw mouse
 
mov [new_window_starting],eax
 
swml1:
 
pop eax
 
ret
 
 
 
 
drawwindow_I_caption:
 
mov ecx,[edx+WDATA.cl_titlebar] ; grab bar
push ecx
mov esi,edx
mov edx,[esi+WDATA.box.top]
add edx,1
mov ebx,[esi+WDATA.box.top]
add ebx,21
mov eax,[esi+WDATA.box.top]
add eax,[esi+WDATA.box.height]
cmp ebx,eax
jb .wdsizeok
mov ebx,eax
.wdsizeok:
push ebx
.drwi:
mov ebx,edx
shl ebx,16
add ebx,edx
mov eax,[esi+WDATA.box.left]
inc eax
shl eax,16
add eax,[esi+WDATA.box.left]
add eax,[esi+WDATA.box.width]
sub eax,1
push edx
mov edx,0x80000000
mov ecx,[esi+WDATA.cl_titlebar]
and ecx,edx
cmp ecx,edx
jnz .nofa
mov ecx,[esi+WDATA.cl_titlebar]
sub ecx,0x00040404
mov [esi+WDATA.cl_titlebar],ecx
and ecx,0x00ffffff
jmp .faj
.nofa:
mov ecx,[esi+WDATA.cl_titlebar]
and ecx,0x00ffffff
.faj:
pop edx
mov edi,0
call [draw_line]
inc edx
cmp edx,[esp]
jb .drwi
add esp,4
pop ecx
mov [esi+WDATA.cl_titlebar],ecx
 
ret
 
 
drawwindow_I:
 
pushad
or [edx+WDATA.fl_wdrawn], 4
 
mov esi,[edx+WDATA.cl_frames] ; rectangle
mov eax,[edx+WDATA.box.left]
shl eax,16
add eax,[edx+WDATA.box.left]
add eax,[edx+WDATA.box.width]
mov ebx,[edx+WDATA.box.top]
shl ebx,16
add ebx,[edx+WDATA.box.top]
add ebx,[edx+WDATA.box.height]
call draw_rectangle
 
and [edx+WDATA.fl_wdrawn], not 4
test [edx+WDATA.fl_wdrawn], 2
jz @f
call drawwindowframes2
@@:
 
call drawwindow_I_caption
 
mov edx,[esi+WDATA.box.top] ; inside work area
add edx,21+5
mov ebx,[esi+WDATA.box.top]
add ebx,[esi+WDATA.box.height]
cmp edx,ebx
jg noinside
mov eax,1
mov ebx,21
mov ecx,[esi+WDATA.box.width]
mov edx,[esi+WDATA.box.height]
mov edi,[esi+WDATA.cl_workarea]
test edi,0x40000000
jnz noinside
call [drawbar]
noinside:
 
popad
 
ret
 
 
draw_rectangle:
 
r_eax equ [esp+28] ; x start
r_ax equ [esp+30] ; x end
r_ebx equ [esp+16] ; y start
r_bx equ [esp+18] ; y end
;esi ; color
 
pushad
 
mov ecx,esi ; yb,xb -> yb,xe
mov eax, r_eax
rol eax, 16
mov ebx,r_ebx
shl ebx,16
mov bx,r_ebx
xor edi, edi
call [draw_line]
 
mov ebx,r_bx ; ye,xb -> ye,xe
shl ebx,16
mov bx,r_bx
call [draw_line]
 
mov ecx,esi ; ya,xa -> ye,xa
mov eax,r_eax
shl eax,16
mov ax,r_eax
mov ebx,r_ebx
shl ebx,16
mov bx,r_bx
mov edi,0
call [draw_line]
 
mov eax,r_ax ; ya,xe -> ye,xe
shl eax,16
mov ax,r_ax
call [draw_line]
 
popad
ret
 
 
drawwindow_III_caption:
 
mov ecx,[edx+WDATA.cl_titlebar] ; GRAB BAR
push ecx
mov esi,edx
mov edx,[esi+WDATA.box.top]
add edx,4
mov ebx,[esi+WDATA.box.top]
add ebx,20
mov eax,[esi+WDATA.box.top]
add eax,[esi+WDATA.box.height]
cmp ebx,eax
jb .wdsizeok
mov ebx,eax
.wdsizeok:
push ebx
.drwi:
mov ebx,edx
shl ebx,16
add ebx,edx
mov eax,[esi+WDATA.box.left]
shl eax,16
add eax,[esi+WDATA.box.left]
add eax,[esi+WDATA.box.width]
add eax,4*65536-4
mov ecx,[esi+WDATA.cl_titlebar]
test ecx,0x40000000
jz .nofa
add ecx,0x040404
.nofa:
test ecx,0x80000000
jz .nofa2
sub ecx,0x040404
.nofa2:
mov [esi+WDATA.cl_titlebar],ecx
and ecx,0xffffff
xor edi, edi
call [draw_line]
inc edx
cmp edx,[esp]
jb .drwi
add esp,4
pop ecx
mov [esi+WDATA.cl_titlebar],ecx
 
ret
 
 
drawwindow_III:
 
pushad
 
mov edi,edx ; RECTANGLE
mov eax,[edi+WDATA.box.left]
shl eax,16
mov ax, word [edi+WDATA.box.left]
add ax, word [edi+WDATA.box.width]
mov ebx,[edi+WDATA.box.top]
shl ebx,16
mov bx, word [edi+WDATA.box.top]
add bx, word [edi+WDATA.box.height]
mov esi,[edi+WDATA.cl_frames]
shr esi,1
and esi,0x007f7f7f
push esi
or [edi+WDATA.fl_wdrawn], 4
call draw_rectangle
and [edi+WDATA.fl_wdrawn], not 4
test [edi+WDATA.fl_wdrawn], 2
jz @f
call drawwindowframes2
@@:
mov ecx,3
dw3l:
add eax,1*65536-1
add ebx,1*65536-1
mov esi,[edi+WDATA.cl_frames]
call draw_rectangle
dec ecx
jnz dw3l
pop esi
add eax,1*65536-1
add ebx,1*65536-1
call draw_rectangle
 
call drawwindow_III_caption
 
mov edx,[esi+WDATA.box.top] ; WORK AREA
add edx,21+5
mov ebx,[esi+WDATA.box.top]
add ebx,[esi+WDATA.box.height]
cmp edx,ebx
jg noinside2
mov eax,5
mov ebx,20
mov ecx,[esi+WDATA.box.width]
mov edx,[esi+WDATA.box.height]
sub ecx,4
sub edx,4
mov edi,[esi+WDATA.cl_workarea]
test edi,0x40000000
jnz noinside2
call [drawbar]
noinside2:
 
popad
 
ret
 
 
 
; activate window
align 4
windowactivate:
 
; esi = abs mem position in stack 0xC400+
 
pushad
 
; if type of current active window is 3,
; it must be redrawn
mov eax, [TASK_COUNT]
movzx eax, word [WIN_POS + eax*2]
shl eax, 5
add eax, window_data
mov ebx, [eax + WDATA.cl_workarea]
and ebx, 0x0f000000
cmp ebx, 0x03000000
je .set_WDATA_fl_redraw ; for 3 and 4 style
cmp ebx, 0x04000000
je .set_WDATA_fl_redraw
jmp @f
.set_WDATA_fl_redraw:
mov [eax + WDATA.fl_redraw], byte 1
@@:
 
push esi
movzx eax, word [esi] ; ax <- process no
movzx eax, word [WIN_STACK+eax*2] ; ax <- position in window stack
 
xor esi, esi ; drop others
waloop:
cmp esi, dword [TASK_COUNT]
jae wacont
inc esi
lea edi, [WIN_STACK + esi*2]
mov bx, [edi] ; position of the current process
cmp bx, ax
jbe @f
dec bx ; upper? => drop!
mov [edi], bx
@@:
jmp waloop
wacont:
; set to no 1
pop esi ; esi = pointer at 0xC400
 
movzx eax, word [esi]
mov bx, [TASK_COUNT] ; number of processes
mov [WIN_STACK+eax*2], bx ; this is the last (and the upper)
 
; update on screen -window stack
xor esi, esi
waloop2:
mov edi, [TASK_COUNT]
cmp esi, edi
jae wacont2
inc esi
movzx ebx, word [esi*2 + WIN_STACK]
mov [ebx*2 + WIN_POS], si
jmp waloop2
wacont2:
mov [KEY_COUNT], byte 0 ; empty keyboard buffer
mov [BTN_COUNT], byte 0 ; empty button buffer
mov [MOUSE_SCROLL_H], word 0 ; zero mouse z-index
mov [MOUSE_SCROLL_V], word 0 ; zero mouse z-index
popad
ret
 
 
; check if window is necessary to draw
 
checkwindowdraw:
 
; edi = position in window_data+
 
mov eax, [edi + WDATA.cl_workarea]
and eax, 0x0f000000
cmp eax, 0x03000000
je .return_yes ; window type 3
cmp eax, 0x04000000
je .return_yes ; window type 4
 
mov esi, edi
sub esi, window_data
shr esi, 5
 
; esi = process number
 
movzx eax, word [WIN_STACK + esi * 2] ; get value of the curr process
lea esi, [WIN_POS + eax * 2] ; get address of this process at 0xC400
 
push esi
 
.new_check:
 
pop esi
add esi, 2
push esi
 
mov eax, [TASK_COUNT]
lea eax, word [WIN_POS + eax * 2] ; number of the upper window
 
cmp esi, eax
ja .all_wnds_to_top
 
movzx eax, word [esi]
shl eax, 5
cmp [CURRENT_TASK + eax + TASKDATA.state], byte 9
je .new_check ; skip dead windows
 
lea esi, [eax+window_data]
 
mov ebx, [edi+WDATA.box.top] ; y0
mov edx, [edi+WDATA.box.height]
add edx, ebx ; y0e
 
mov ecx, [esi+WDATA.box.top] ; y ; y check
cmp ecx, edx
jae .new_check ; y < y0e
mov eax, [esi+WDATA.box.height]
add ecx, eax ; ye
cmp ebx, ecx ; y0 >= ye
ja .new_check
 
mov eax, [edi+WDATA.box.left] ; x0
mov ecx, [edi+WDATA.box.width]
add ecx, eax ; x0e
 
mov edx, [esi+WDATA.box.left] ; x ; x check
cmp edx, ecx
jae .new_check ; x < x0e
mov ecx, [esi+WDATA.box.width]
add edx, ecx
cmp eax, edx
ja .new_check
 
pop esi
.return_yes:
mov ecx,1 ; overlap some window
ret
 
.all_wnds_to_top:
 
pop esi
 
xor ecx, ecx ; passed all windows to top
ret
 
 
 
 
waredraw: ; if redraw necessary at activate
 
pushad
 
call checkwindowdraw ; draw window on activation ?
test ecx, ecx
jz .do_not_draw
 
popad
mov [MOUSE_DOWN], byte 1 ; do draw mouse
call windowactivate
 
; update screen info
pushad
mov edi, [TASK_COUNT] ; the last process (number)
movzx esi, word [WIN_POS + edi * 2]
shl esi, 5
add esi, window_data
 
; coordinates of the upper window
mov eax, [esi + WDATA.box.left] ; cx
mov ebx, [esi + WDATA.box.top] ; cy
mov ecx, [esi + WDATA.box.width] ; sx
mov edx, [esi + WDATA.box.height] ; sy
 
add ecx, eax ; ecx = x_end
add edx, ebx ; edx = y_end
 
mov edi, [TASK_COUNT]
movzx esi, word [WIN_POS + edi * 2]
call setscreen
popad
 
mov [edi + WDATA.fl_redraw], 1 ; redraw flag for app
mov [MOUSE_DOWN],byte 0 ; mouse down checks
 
ret
 
.do_not_draw:
 
popad
 
call windowactivate
mov [MOUSE_DOWN],byte 0 ; mouse down checks
mov [MOUSE_BACKGROUND],byte 0 ; no mouse background
mov [DONT_DRAW_MOUSE],byte 0 ; draw mouse
ret
 
 
; eax = window number on screen
; corrupts registers and [dl*]
minimize_window:
movzx eax, word [WIN_POS+eax*2]
shl eax, 5
add eax, window_data
test [eax+WDATA.fl_wstate], WSTATE_MINIMIZED
jnz .skip_redrawings
pushfd
cli
or [eax+WDATA.fl_wstate], WSTATE_MINIMIZED
mov edi, eax
;call calculatescreen
mov eax, [edi+WDATA.box.left]
mov [dlx], eax
mov ecx, eax
add ecx, [edi+WDATA.box.width]
mov [dlxe], ecx
mov ebx, [edi+WDATA.box.top]
mov [dly], ebx
mov edx, ebx
add edx, [edi+WDATA.box.height]
mov [dlye], edx
call calculatescreen
xor esi, esi
xor eax, eax
call redrawscreen
popfd
.skip_redrawings:
ret
 
; eax = window number on screen
; corrupts registers and [dl*]
restore_minimized_window:
pushfd
cli
movzx esi, word [WIN_POS+eax*2]
mov edi, esi
shl edi, 5
add edi, window_data
test [edi+WDATA.fl_wstate], WSTATE_MINIMIZED
jz .skip_redrawings
mov [edi+WDATA.fl_redraw], 1
and [edi+WDATA.fl_wstate], not WSTATE_MINIMIZED
cmp eax, [TASK_COUNT] ; the uppermost window
jnz .no_uppermost
mov eax, [edi+WDATA.box.left]
mov ebx, [edi+WDATA.box.top]
mov ecx, eax
mov edx, ebx
add ecx, [edi+WDATA.box.width]
add edx, [edi+WDATA.box.height]
call setscreen
jmp .done
.no_uppermost:
mov eax, [edi+WDATA.box.left]
mov ebx, [edi+WDATA.box.top]
mov ecx, eax
mov edx, ebx
add ecx, [edi+WDATA.box.width]
add edx, [edi+WDATA.box.height]
call calculatescreen
.done:
mov [MOUSE_BACKGROUND],byte 0 ; no mouse under
.skip_redrawings:
popfd
ret
 
 
;iglobal
; window_moving db 'K : Window - move/resize',13,10,0
; window_moved db 'K : Window - done',13,10,0
;endg
 
; check window touch
align 4
checkwindows:
pushad
 
cmp [window_minimize], 0
je .no_minimizing
mov eax, [TASK_COUNT] ; the uppermost window
mov bl, 0
xchg [window_minimize], bl
cmp bl, 1
jne .restore
call minimize_window
jmp .continue
.restore:
call restore_minimized_window
.continue:
.no_minimizing:
 
cmp [BTN_DOWN],byte 0 ; mouse buttons pressed ?
jne .mouse_buttons_pressed
;..................................... start 1/4 : modified by vhanla .................
mov [bPressedMouseXY_W],0
;..................................... end 1/4 : modified by vhanla ...................
popad
ret
.mouse_buttons_pressed:
;..................................... start 2/4 : modified by vhanla .................
uglobal
bPressedMouseXY_W db 0x0
endg
;..................................... end 2/4 : modified by vhanla ...................
mov esi,[TASK_COUNT]
inc esi
 
;..................................... start 3/4 : modified by vhanla .................
cmp [bPressedMouseXY_W],1
ja @f
inc [bPressedMouseXY_W]
jnc @f
;mov ax,[MOUSE_X]
;mov [mx],ax
;mov ax,[MOUSE_Y]
;mov [my],ax
mov eax,dword[MOUSE_X]
mov dword[mx],eax
@@:
;..................................... end 3/4 : modified by vhanla ...................
 
cwloop:
cmp esi,2
jb .exit
 
dec esi
movzx edi, word [WIN_POS + esi * 2] ; ebx
shl edi, 5
add edi, window_data
; mov edi, ebx
mov ecx, [edi + WDATA.box.left]
mov edx, [edi + WDATA.box.top]
 
mov eax,ecx
mov ebx,edx
test [edi+WDATA.fl_wstate],WSTATE_MINIMIZED
jnz cwloop
 
;..................................... start 4/4 : modified by vhanla .................
movzx eax, word [mx]; movzx eax,word[MOUSE_X]
movzx ebx, word [my]; movzx ebx,word[MOUSE_Y]
;..................................... endt 4/4 : modified by vhanla ..................
cmp ecx, eax
jae cwloop
cmp edx, ebx
jae cwloop
add ecx, [edi + WDATA.box.width]
add edx, [edi + WDATA.box.height]
cmp eax, ecx
jae cwloop
cmp ebx, edx
jae cwloop
 
pushad
mov eax, esi
mov ebx, [TASK_COUNT]
cmp eax, ebx ; is this window active?
jz .move_resize_window
 
cmp [bPressedMouseXY_W], 1
ja .exit_popa
 
; eax = position in windowing stack
; redraw must ?
lea esi, [WIN_POS + esi * 2]
call waredraw
.exit_popa:
add esp, 32
 
.exit:
popad
ret
 
.move_resize_window: ; MOVE OR RESIZE WINDOW
popad
 
; Check for user enabled fixed window
mov edx, [edi + WDATA.cl_titlebar]
and edx, 0x0f000000
cmp edx, 0x01000000
jne .window_move_enabled_for_user
popad
ret
.window_move_enabled_for_user:
 
test [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP
jnz .no_resize_2
 
mov [do_resize_from_corner],byte 0 ; resize for skinned window
mov edx, [edi + WDATA.cl_workarea]
and edx, 0x0f000000
cmp edx, 0x00000000 ;{test for resized}
je .no_resize_2
cmp edx, 0x01000000 ;{test for resized}
je .no_resize_2
cmp edx, 0x04000000 ;{test for resized}
je .no_resize_2
; jb .no_resize_2 ; not type 2 wnd
 
mov edx, [edi + WDATA.box.top]
add edx, [edi + WDATA.box.height]
sub edx, 6 ; edx = y_end - 6
cmp ebx, edx ; ebx = mouse_y
jb .no_resize_2
mov [do_resize_from_corner],byte 1
jmp .continue
.no_resize_2:
 
push eax
call get_titlebar_height
add eax,[edi + WDATA.box.top]
cmp ebx,eax
pop eax
jae .exit
 
.continue:
 
; push esi
; mov esi, window_moving
; call sys_msg_board_str
; pop esi
 
mov ecx, [timer_ticks] ; double-click ?
mov edx, ecx
sub edx, [latest_window_touch]
mov [latest_window_touch], ecx
mov [latest_window_touch_delta], edx
 
mov cl, [BTN_DOWN] ; save for shade check
mov [do_resize], cl
no_emulation_righ_button:
mov ecx, [edi + WDATA.box.left]
mov edx, [edi + WDATA.box.top]
 
push eax ecx edx
mov [dlx], ecx ; save for drawlimits
mov [dly], edx
mov eax, [edi + WDATA.box.width]
add ecx, eax
mov eax, [edi + WDATA.box.height]
add edx, eax
mov [dlxe], ecx
mov [dlye], edx
pop edx ecx eax
 
sub eax, ecx
sub ebx, edx
 
mov esi, [MOUSE_X]
mov [WIN_TEMP_XY], esi
 
pushad ; wait for putimages to finish
; mov ebx,5
; call delay_hs
mov eax,[edi + WDATA.box.left]
mov [npx],eax
mov eax,[edi + WDATA.box.top]
mov [npy],eax
popad
 
push eax ; save old coordinates
mov ax, word [edi + WDATA.box.left]
mov word [oldc+BOX.left],ax
mov ax, word [edi + WDATA.box.top]
mov word [oldc+BOX.top],ax
mov ax, word [edi + WDATA.box.width]
mov word [oldc+BOX.width],ax
mov word [npxe],ax
mov ax, word [edi + WDATA.box.height]
mov word [oldc+BOX.height],ax
mov word [npye],ax
pop eax
 
call drawwindowframes
 
mov [reposition],0
mov [MOUSE_DOWN],byte 1 ; no reaction to mouse up/down
 
; move window
 
newchm:
 
mov [DONT_DRAW_MOUSE],byte 1
 
call checkidle
 
call checkVga_N13
 
mov [MOUSE_BACKGROUND],byte 0
 
call [draw_pointer]
 
pushad
call stack_handler
popad
 
mov esi,[WIN_TEMP_XY]
cmp esi,[MOUSE_X]
je cwb
 
mov cx,[MOUSE_X]
mov dx,[MOUSE_Y]
sub cx,ax
sub dx,bx
 
push ax
push bx
 
call drawwindowframes
 
mov ax,[Screen_Max_X]
mov bx,[Screen_Max_Y]
 
cmp [do_resize_from_corner],1
je no_new_position
 
mov word [npx],word 0 ; x repos ?
cmp ax,cx
jb noreposx
mov [reposition],1
sub ax,word [npxe]
mov word [npx],ax
cmp ax,cx
jb noreposx
mov word [npx],cx
noreposx:
 
mov word [npy],word 0 ; y repos ?
cmp bx,dx
jb noreposy
mov [reposition],1
sub bx,word [npye]
mov word [npy],bx
cmp bx,dx
jb noreposy
mov word [npy],dx
noreposy:
 
no_new_position:
 
cmp [do_resize_from_corner],0 ; resize from right corner
je norepos_size
pushad
 
mov edx,edi
sub edx,window_data
;shr edx,5
;shl edx,8
;add edx,0x80000 ; process base at 0x80000+
lea edx, [SLOT_BASE + edx*8]
 
movzx eax,word [MOUSE_X]
cmp eax,[edi + WDATA.box.left]
jb nnepx
sub eax,[edi + WDATA.box.left]
cmp eax,32 ; [edx+0x90+8]
jge nnepx2
mov eax,32 ; [edx+0x90+8]
nnepx2:
mov [npxe],eax
nnepx:
 
call get_rolledup_height
mov ebx,eax
movzx eax,word [MOUSE_Y]
cmp eax,[edi + WDATA.box.top]
jb nnepy
sub eax,[edi + WDATA.box.top]
cmp eax,ebx ; [edx+0x90+12]
jge nnepy2
mov eax,ebx ; [edx+0x90+12]
nnepy2:
mov [npye],eax
nnepy:
 
mov [reposition],1
 
popad
norepos_size:
 
pop bx
pop ax
call drawwindowframes
 
mov esi,[MOUSE_X]
mov [WIN_TEMP_XY],esi
 
cwb:
cmp [BTN_DOWN],byte 0
jne newchm
; new position done
mov [DONT_DRAW_MOUSE],byte 1
mov cl,0
test [edi+WDATA.fl_wstate],WSTATE_MAXIMIZED
jnz @f
mov cl,[reposition]
call drawwindowframes
 
mov eax,[npx]
mov [edi + WDATA.box.left],eax
mov eax,[npy]
mov [edi + WDATA.box.top],eax
mov eax,[npxe]
mov [edi + WDATA.box.width],eax
mov eax,[npye]
mov [edi + WDATA.box.height],eax
call set_window_clientbox
 
@@: mov [reposition],cl
 
cmp [reposition],1 ; save new position and size
jne no_bounds_save
push esi edi ecx
mov esi,edi
mov ecx,2
test [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP or WSTATE_MAXIMIZED
jnz @f
add ecx,2
@@: sub edi,window_data
shr edi,5
shl edi,8
add edi,SLOT_BASE+APPDATA.saved_box
cld
rep movsd
pop ecx edi esi
no_bounds_save:
 
pushad ; WINDOW SHADE/FULLSCREEN
 
;{doule click not worked for 4 type window}
mov edx, [edi + WDATA.cl_workarea]
and edx, 0x0f000000
cmp edx, 0x00000000
je no_fullscreen_restore
cmp edx, 0x01000000
je no_fullscreen_restore
 
cmp [reposition],1
je no_window_sizing
mov edx,edi
sub edx,window_data
shr edx,5
shl edx,8
add edx,SLOT_BASE ; process base at 0x80000+
 
cmp [do_resize],2 ; window shade ?
jne no_window_shade
mov [reposition],1
 
test [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP
jnz wnd_rolldown
wnd_rollup:
or [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP
call get_rolledup_height
jmp @f
wnd_rolldown:
and [edi+WDATA.fl_wstate],not WSTATE_ROLLEDUP
mov eax,[edx + APPDATA.saved_box.height] ; 0x90+BOX.height
test [edi+WDATA.fl_wstate],WSTATE_MAXIMIZED
jz @f
mov eax,[screen_workarea.bottom]
sub eax,[screen_workarea.top]
@@: mov [edi+WDATA.box.height],eax
add eax, [edi+WDATA.box.top]
cmp eax, [Screen_Max_Y]
jbe @f
mov eax, [Screen_Max_Y]
sub eax, [edi+WDATA.box.height]
mov [edi+WDATA.box.top], eax
@@: call check_window_position
call set_window_clientbox
 
no_window_shade:
 
push edx
mov edx, [edi + WDATA.cl_workarea]
and edx, 0x0f000000
cmp edx, 0x04000000
pop edx
je no_fullscreen_restore
 
cmp [do_resize],1 ; fullscreen/restore ?
jne no_fullscreen_restore
cmp [latest_window_touch_delta],dword 50
jg no_fullscreen_restore
mov [reposition],1
test [edi+WDATA.fl_wstate],WSTATE_MAXIMIZED
jnz restore_from_fullscreen
or [edi+WDATA.fl_wstate],WSTATE_MAXIMIZED
mov eax,[screen_workarea.left]
mov [edi+WDATA.box.left],eax
sub eax,[screen_workarea.right]
neg eax
mov [edi+WDATA.box.width],eax
mov eax,[screen_workarea.top]
mov [edi+WDATA.box.top],eax
test [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP
jnz @f
sub eax,[screen_workarea.bottom]
neg eax
mov [edi+WDATA.box.height],eax
@@:
jmp restore_from_fullscreen.clientbox
restore_from_fullscreen:
and [edi+WDATA.fl_wstate],not WSTATE_MAXIMIZED
push [edi+WDATA.box.height]
push edi ; restore
lea esi, [edx + APPDATA.saved_box]
mov ecx,4
cld
rep movsd
pop edi
pop eax
test [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP
jz @f
mov [edi+WDATA.box.height],eax
@@:
.clientbox:
call set_window_clientbox
 
no_fullscreen_restore:
 
mov eax,[edi+WDATA.box.top] ; check Y inside screen
add eax,[edi+WDATA.box.height]
cmp eax,[Screen_Max_Y]
jbe no_window_sizing
mov eax,[edi+WDATA.box.left] ; check X inside screen
add eax,[edi+WDATA.box.width]
cmp eax,[Screen_Max_X]
jbe no_window_sizing
mov eax,[Screen_Max_X]
sub eax,[edi+WDATA.box.width]
mov [edi+WDATA.box.left],eax
mov eax,[Screen_Max_Y]
sub eax,[edi+WDATA.box.height]
mov [edi+WDATA.box.top],eax
call set_window_clientbox
no_window_sizing:
 
popad
 
cmp [reposition],0
je retwm
 
mov [DONT_DRAW_MOUSE],byte 1 ; no mouse
 
 
push eax ebx ecx edx
mov eax,[edi+WDATA.box.left]
mov ebx,[edi+WDATA.box.top]
mov ecx,[edi+WDATA.box.width]
mov edx,[edi+WDATA.box.height]
add ecx,eax
add edx,ebx
call calculatescreen
 
mov eax,[oldc+BOX.left]
mov ebx,[oldc+BOX.top]
mov ecx,[oldc+BOX.width]
mov edx,[oldc+BOX.height]
add ecx,eax
add edx,ebx
call calculatescreen
pop edx ecx ebx eax
 
mov eax,edi
call redrawscreen
 
 
mov [edi+WDATA.fl_redraw],1
 
mov ecx,100 ; wait to avoid mouse residuals
waitre2:
mov [DONT_DRAW_MOUSE],byte 1
call checkidle
cmp [edi+WDATA.fl_redraw],0
jz retwm
loop waitre2
 
retwm:
 
mov [DONT_DRAW_MOUSE],byte 0 ; mouse pointer
mov [MOUSE_BACKGROUND],byte 0 ; no mouse under
mov [MOUSE_DOWN],byte 0 ; react to mouse up/down
 
; mov esi,window_moved
; call sys_msg_board_str
 
popad
 
ret
 
 
uglobal
add_window_data dd 0
do_resize_from_corner db 0x0
reposition db 0x0
latest_window_touch dd 0x0
latest_window_touch_delta dd 0x0
 
do_resize db 0x0
 
oldc dd 0x0,0x0,0x0,0x0
 
dlx dd 0x0
dly dd 0x0
dlxe dd 0x0
dlye dd 0x0
 
npx dd 0x0
npy dd 0x0
npxe dd 0x0
npye dd 0x0
 
mpx dd 0x0
mpy dd 0x0
endg
 
 
; draw negative window frames
drawwindowframes2:
pushad
cli
jmp drawwindowframes.do
drawwindowframes:
pushad
cli
 
test [edi+WDATA.fl_wstate],WSTATE_MAXIMIZED
jnz .ret
mov eax, [npx]
cmp eax, [edi+WDATA.box.left]
jnz .nowndframe
mov eax, [npxe]
cmp eax, [edi+WDATA.box.width]
jnz .nowndframe
mov eax, [npy]
cmp eax, [edi+WDATA.box.top]
jnz .nowndframe
mov eax, [npye]
cmp eax, [edi+WDATA.box.height]
jnz .nowndframe
xor [edi+WDATA.fl_wdrawn], 2
test [edi+WDATA.fl_wdrawn], 4
jnz .ret
 
.nowndframe:
.do:
mov edi, 1
mov ecx, 0x01000000
mov eax,[npx]
shl eax,16
add eax,[npx]
add eax,[npxe]
add eax,65536*1-1
mov ebx,[npy]
shl ebx,16
add ebx,[npy]
call [draw_line]
 
mov eax,[npx]
shl eax,16
add eax,[npx]
add eax,[npxe]
add eax,65536*1-1
mov ebx,[npy]
add ebx,[npye]
shl ebx,16
add ebx,[npy]
add ebx,[npye]
call [draw_line]
 
mov eax,[npx]
shl eax,16
add eax,[npx]
mov ebx,[npy]
shl ebx,16
add ebx,[npy]
add ebx,[npye]
call [draw_line]
 
mov eax,[npx]
add eax,[npxe]
shl eax,16
add eax,[npx]
add eax,[npxe]
mov ebx,[npy]
shl ebx,16
add ebx,[npy]
add ebx,[npye]
call [draw_line]
 
.ret:
sti
popad
ret
 
 
 
random_shaped_window:
 
;
; eax = 0 giving address of data area
; ebx address
; eax = 1 shape area scale
; ebx 2^ebx scale
 
test eax, eax
jne rsw_no_address
mov eax,[current_slot]
mov [eax+APPDATA.wnd_shape],ebx
rsw_no_address:
 
cmp eax,1
jne rsw_no_scale
mov eax,[current_slot]
mov byte [eax+APPDATA.wnd_shape_scale], bl
rsw_no_scale:
 
ret
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;;
;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
$Revision$
 
 
;==============================================================================
;///// public functions ///////////////////////////////////////////////////////
;==============================================================================
 
macro FuncTable name, [label]
{
common
align 4
\label name#.ftable dword
forward
dd name#.#label
common
name#.sizeof.ftable = $ - name#.ftable
}
 
iglobal
FuncTable syscall_display_settings, \
00, 01, 02, 03, 04, 05, 06, 07, 08
endg
 
uglobal
common_colours rd 32
new_window_starting dd ?
latest_window_touch dd ?
latest_window_touch_delta dd ?
old_window_pos BOX
new_window_pos BOX
draw_limits RECT
bPressedMouseXY_W db ?
do_resize db ?
do_resize_from_corner db ?
reposition db ?
endg
 
align 4
;------------------------------------------------------------------------------
syscall_display_settings: ;///// system function 48 ///////////////////////////
;------------------------------------------------------------------------------
;; Redraw screen:
;< ebx = 0
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Set button style:
;< ebx = 1
;< ecx = 0 (flat) or 1 (with gradient)
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Set system color palette:
;< ebx = 2
;< ecx = pointer to color table
;< edx = size of color table
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Get system color palette:
;< ebx = 3
;< ecx = pointer to color table buffer
;< edx = size of color table buffer
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Get skinned caption height:
;< ebx = 4
;> eax = height in pixels
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Get screen working area:
;< ebx = 5
;> eax = pack[16(left), 16(right)]
;> ebx = pack[16(top), 16(bottom)]
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Set screen working area:
;< ebx = 6
;< ecx = pack[16(left), 16(right)]
;< edx = pack[16(top), 16(bottom)]
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Get skin margins:
;< ebx = 7
;> eax = pack[16(left), 16(right)]
;> ebx = pack[16(top), 16(bottom)]
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Set skin:
;< ebx = 8
;< ecx = pointer to FileInfoBlock struct
;> eax = FS error code
;------------------------------------------------------------------------------
cmp ebx, .sizeof.ftable / 4
ja @f
jmp [.ftable + ebx * 4]
@@: ret
 
 
align 4
syscall_display_settings.00:
xor eax, eax
inc ebx
cmp [windowtypechanged], ebx
jne .exit
mov [windowtypechanged], eax
 
jmp syscall_display_settings._.redraw_whole_screen
 
.exit:
ret
 
align 4
syscall_display_settings.01:
and ecx, 1
cmp ecx, [buttontype]
je .exit
mov [buttontype], ecx
mov [windowtypechanged], ebx
 
.exit:
ret
 
align 4
syscall_display_settings.02:
dec ebx
mov esi, ecx
and edx, 127
mov edi, common_colours
mov ecx, edx
rep movsb
mov [windowtypechanged], ebx
ret
 
align 4
syscall_display_settings.03:
mov edi, ecx
and edx, 127
mov esi, common_colours
mov ecx, edx
rep movsb
ret
 
align 4
syscall_display_settings.04:
mov eax, [_skinh]
mov [esp + 32], eax
ret
 
align 4
syscall_display_settings.05:
mov eax, [screen_workarea.left - 2]
mov ax, word[screen_workarea.right]
mov [esp + 32], eax
mov eax, [screen_workarea.top - 2]
mov ax, word[screen_workarea.bottom]
mov [esp + 20], eax
ret
 
align 4
syscall_display_settings.06:
xor esi, esi
 
mov edi, [Screen_Max_X]
mov eax, ecx
movsx ebx, ax
sar eax, 16
cmp eax, ebx
jge .check_horizontal
inc esi
or eax, eax
jge @f
xor eax, eax
@@: mov [screen_workarea.left], eax
cmp ebx, edi
jle @f
mov ebx, edi
@@: mov [screen_workarea.right], ebx
 
.check_horizontal:
mov edi, [Screen_Max_Y]
mov eax, edx
movsx ebx, ax
sar eax, 16
cmp eax, ebx
jge .check_if_redraw_needed
inc esi
or eax, eax
jge @f
xor eax, eax
@@: mov [screen_workarea.top], eax
cmp ebx, edi
jle @f
mov ebx, edi
@@: mov [screen_workarea.bottom], ebx
 
.check_if_redraw_needed:
or esi, esi
jz .exit
 
call repos_windows
jmp syscall_display_settings._.calculate_whole_screen
 
.exit:
ret
 
align 4
syscall_display_settings.07:
mov eax, [_skinmargins + 0]
mov [esp + 32], eax
mov eax, [_skinmargins + 4]
mov [esp + 20], eax
ret
 
align 4
syscall_display_settings.08:
mov ebx, ecx
call read_skin_file
mov [esp + 32], eax
test eax, eax
jnz .exit
 
call syscall_display_settings._.calculate_whole_screen
jmp syscall_display_settings._.redraw_whole_screen
 
.exit:
ret
 
syscall_display_settings._.calculate_whole_screen:
xor eax, eax
xor ebx, ebx
mov ecx, [Screen_Max_X]
mov edx, [Screen_Max_Y]
jmp calculatescreen
 
syscall_display_settings._.redraw_whole_screen:
xor eax, eax
mov [draw_limits.left], eax
mov [draw_limits.top], eax
mov eax, [Screen_Max_X]
mov [draw_limits.right], eax
mov eax, [Screen_Max_Y]
mov [draw_limits.bottom], eax
mov eax, window_data
jmp redrawscreen
 
align 4
;------------------------------------------------------------------------------
syscall_set_window_shape: ;///// system function 50 ///////////////////////////
;------------------------------------------------------------------------------
;; Set window shape address:
;> eax = 0
;> ebx = shape data address
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;; Set window shape scale:
;> eax = 1
;> ebx = scale power (resulting scale is 2^ebx)
;------------------------------------------------------------------------------
mov edi, [current_slot]
 
test eax, eax
jne .shape_scale
mov [edi + APPDATA.wnd_shape], ebx
 
.shape_scale:
dec eax
jnz .exit
mov [edi + APPDATA.wnd_shape_scale], ebx
 
.exit:
ret
 
align 4
;------------------------------------------------------------------------------
set_window_defaults: ;/////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
push eax ecx
xor eax, eax
mov ecx, WIN_STACK
@@: inc eax
add ecx, 2
; process no
mov [ecx + 0x000], ax
; positions in stack
mov [ecx + 0x400], ax
cmp ecx, WIN_POS - 2
jne @b
pop ecx eax
ret
 
align 4
;------------------------------------------------------------------------------
calculatescreen: ;/////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Scan all windows from bottom to top, calling `setscreen` for each one
;? intersecting given screen area
;------------------------------------------------------------------------------
;> eax = left
;> ebx = top
;> ecx = right
;> edx = bottom
;------------------------------------------------------------------------------
push esi
pushfd
cli
 
mov esi, 1
call window._.set_screen
 
push ebp
 
mov ebp, [TASK_COUNT]
cmp ebp, 1
jbe .exit
 
push edx ecx ebx eax
 
.next_window:
movzx edi, word[WIN_POS + esi * 2]
shl edi, 5
 
cmp [CURRENT_TASK + edi + TASKDATA.state], TSTATE_FREE
je .skip_window
 
add edi, window_data
test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED
jnz .skip_window
 
mov eax, [edi + WDATA.box.left]
cmp eax, [esp + RECT.right]
ja .skip_window
mov ebx, [edi + WDATA.box.top]
cmp ebx, [esp + RECT.bottom]
ja .skip_window
mov ecx, [edi + WDATA.box.width]
add ecx, eax
cmp ecx, [esp + RECT.left]
jb .skip_window
mov edx, [edi + WDATA.box.height]
add edx, ebx
cmp edx, [esp + RECT.top]
jb .skip_window
 
cmp eax, [esp + RECT.left]
jae @f
mov eax, [esp + RECT.left]
@@: cmp ebx, [esp + RECT.top]
jae @f
mov ebx, [esp + RECT.top]
@@: cmp ecx, [esp + RECT.right]
jbe @f
mov ecx, [esp + RECT.right]
@@: cmp edx, [esp + RECT.bottom]
jbe @f
mov edx, [esp + RECT.bottom]
 
@@: push esi
movzx esi, word[WIN_POS + esi * 2]
call window._.set_screen
pop esi
 
.skip_window:
inc esi
dec ebp
jnz .next_window
 
pop eax ebx ecx edx
 
.exit:
pop ebp
popfd
pop esi
ret
 
align 4
;------------------------------------------------------------------------------
repos_windows: ;///////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
mov ecx, [TASK_COUNT]
mov edi, window_data + WDATA.sizeof * 2
call force_redraw_background
dec ecx
jle .exit
 
.next_window:
mov [edi + WDATA.fl_redraw], 1
test [edi + WDATA.fl_wstate], WSTATE_MAXIMIZED
jnz .fix_maximized
 
mov eax, [edi + WDATA.box.left]
add eax, [edi + WDATA.box.width]
mov ebx, [Screen_Max_X]
cmp eax, ebx
jle .fix_vertical
mov eax, [edi + WDATA.box.width]
sub eax, ebx
jle @f
mov [edi + WDATA.box.width], ebx
@@: sub ebx, [edi + WDATA.box.width]
mov [edi + WDATA.box.left], ebx
 
.fix_vertical:
mov eax, [edi + WDATA.box.top]
add eax, [edi + WDATA.box.height]
mov ebx, [Screen_Max_Y]
cmp eax, ebx
jle .fix_client_box
mov eax, [edi + WDATA.box.height]
sub eax, ebx
jle @f
mov [edi + WDATA.box.height], ebx
@@: sub ebx, [edi + WDATA.box.height]
mov [edi + WDATA.box.top], ebx
jmp .fix_client_box
 
.fix_maximized:
mov eax, [screen_workarea.left]
mov [edi + WDATA.box.left], eax
sub eax, [screen_workarea.right]
neg eax
mov [edi + WDATA.box.width], eax
mov eax, [screen_workarea.top]
mov [edi + WDATA.box.top], eax
test [edi + WDATA.fl_wstate], WSTATE_ROLLEDUP
jnz .fix_client_box
sub eax, [screen_workarea.bottom]
neg eax
mov [edi + WDATA.box.height], eax
 
.fix_client_box:
call set_window_clientbox
 
add edi, WDATA.sizeof
loop .next_window
 
.exit:
ret
 
align 4
;------------------------------------------------------------------------------
check_window_position: ;///////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Check if window is inside screen area
;------------------------------------------------------------------------------
;> edi = pointer to WDATA
;------------------------------------------------------------------------------
push eax ebx ecx edx esi
 
mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.top]
mov ecx, [edi + WDATA.box.width]
mov edx, [edi + WDATA.box.height]
 
mov esi, [Screen_Max_X]
cmp ecx, esi
jbe .check_left
mov ecx, esi
mov [edi + WDATA.box.width], esi
 
.check_left:
or eax, eax
jg @f
xor eax, eax
jmp .fix_left
@@: add eax, ecx
cmp eax, esi
jle .check_height
mov eax, esi
sub eax, ecx
 
.fix_left:
mov [edi + WDATA.box.left], eax
 
.check_height:
mov esi, [Screen_Max_Y]
cmp edx, esi
jbe .check_top
mov edx, esi
mov [edi + WDATA.box.height], esi
 
.check_top:
or ebx, ebx
jg @f
xor ebx, ebx
jmp .fix_top
@@: add ebx, edx
cmp ebx, esi
jle .exit
mov ebx, esi
sub ebx, edx
 
.fix_top:
mov [edi + WDATA.box.top], ebx
 
.exit:
pop esi edx ecx ebx eax
ret
 
align 4
;------------------------------------------------------------------------------
sys_window_mouse: ;////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
push eax
 
mov eax, [timer_ticks]
cmp [new_window_starting], eax
jb .exit
 
mov byte[MOUSE_BACKGROUND], 0
mov byte[DONT_DRAW_MOUSE], 0
 
mov [new_window_starting], eax
 
.exit:
pop eax
ret
 
align 4
;------------------------------------------------------------------------------
draw_rectangle: ;//////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;> eax = pack[16(left), 16(right)]
;> ebx = pack[16(top), 16(bottom)]
;> esi = color
;------------------------------------------------------------------------------
push eax ebx ecx edi
 
xor edi, edi
 
.flags_set:
push ebx
 
; set line color
mov ecx, esi
 
; draw top border
rol ebx, 16
push ebx
rol ebx, 16
pop bx
call [draw_line]
 
; draw bottom border
mov ebx, [esp - 2]
pop bx
call [draw_line]
 
pop ebx
add ebx, 1 * 65536 - 1
 
; draw left border
rol eax, 16
push eax
rol eax, 16
pop ax
call [draw_line]
 
; draw right border
mov eax, [esp - 2]
pop ax
call [draw_line]
 
pop edi ecx ebx eax
ret
 
.forced:
push eax ebx ecx edi
xor edi, edi
inc edi
jmp .flags_set
 
align 4
;------------------------------------------------------------------------------
drawwindow_I_caption: ;////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
push [edx + WDATA.cl_titlebar]
mov esi, edx
 
mov edx, [esi + WDATA.box.top]
mov eax, edx
lea ebx, [edx + 21]
inc edx
add eax, [esi + WDATA.box.height]
 
cmp ebx, eax
jbe @f
mov ebx, eax
@@: push ebx
 
xor edi, edi
 
.next_line:
mov ebx, edx
shl ebx, 16
add ebx, edx
mov eax, [esi + WDATA.box.left]
inc eax
shl eax, 16
add eax, [esi + WDATA.box.left]
add eax, [esi + WDATA.box.width]
dec eax
mov ecx, [esi + WDATA.cl_titlebar]
test ecx, 0x80000000
jz @f
sub ecx, 0x00040404
mov [esi + WDATA.cl_titlebar], ecx
@@: and ecx, 0x00ffffff
call [draw_line]
inc edx
cmp edx, [esp]
jb .next_line
 
add esp, 4
pop [esi + WDATA.cl_titlebar]
ret
 
align 4
;------------------------------------------------------------------------------
drawwindow_I: ;////////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
pushad
 
; window border
 
mov eax, [edx + WDATA.box.left - 2]
mov ax, word[edx + WDATA.box.left]
add ax, word[edx + WDATA.box.width]
mov ebx, [edx + WDATA.box.top - 2]
mov bx, word[edx + WDATA.box.top]
add bx, word[edx + WDATA.box.height]
 
mov esi, [edx + WDATA.cl_frames]
call draw_rectangle
 
; window caption
 
call drawwindow_I_caption
 
; window client area
 
; do we need to draw it?
mov edi, [esi + WDATA.cl_workarea]
test edi, 0x40000000
jnz .exit
 
; does client area have a positive size on screen?
mov edx, [esi + WDATA.box.top]
add edx, 21 + 5
mov ebx, [esi + WDATA.box.top]
add ebx, [esi + WDATA.box.height]
cmp edx, ebx
jg .exit
 
; okay, let's draw it
mov eax, 1
mov ebx, 21
mov ecx, [esi + WDATA.box.width]
mov edx, [esi + WDATA.box.height]
call [drawbar]
 
.exit:
popad
ret
 
align 4
;------------------------------------------------------------------------------
drawwindow_III_caption: ;/////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
mov ecx, [edx + WDATA.cl_titlebar]
push ecx
mov esi, edx
mov edx, [esi + WDATA.box.top]
add edx, 4
mov ebx, [esi + WDATA.box.top]
add ebx, 20
mov eax, [esi + WDATA.box.top]
add eax, [esi + WDATA.box.height]
 
cmp ebx, eax
jb @f
mov ebx, eax
@@: push ebx
 
xor edi, edi
 
.next_line:
mov ebx, edx
shl ebx, 16
add ebx, edx
mov eax, [esi + WDATA.box.left]
shl eax, 16
add eax, [esi + WDATA.box.left]
add eax, [esi + WDATA.box.width]
add eax, 4 * 65536 - 4
mov ecx, [esi + WDATA.cl_titlebar]
test ecx, 0x40000000
jz @f
add ecx, 0x00040404
@@: test ecx, 0x80000000
jz @f
sub ecx, 0x00040404
@@: mov [esi + WDATA.cl_titlebar], ecx
and ecx, 0x00ffffff
call [draw_line]
inc edx
cmp edx, [esp]
jb .next_line
 
add esp, 4
pop [esi + WDATA.cl_titlebar]
ret
 
align 4
;------------------------------------------------------------------------------
drawwindow_III: ;//////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? <description>
;------------------------------------------------------------------------------
pushad
 
; window border
 
mov eax, [edx + WDATA.box.left - 2]
mov ax, word[edx + WDATA.box.left]
add ax, word[edx + WDATA.box.width]
mov ebx, [edx + WDATA.box.top - 2]
mov bx, word[edx + WDATA.box.top]
add bx, word[edx + WDATA.box.height]
 
mov esi, [edx + WDATA.cl_frames]
shr esi, 1
and esi, 0x007f7f7f
call draw_rectangle
 
push esi
mov ecx, 3
mov esi, [edx + WDATA.cl_frames]
 
.next_frame:
add eax, 1 * 65536 - 1
add ebx, 1 * 65536 - 1
call draw_rectangle
dec ecx
jnz .next_frame
 
pop esi
add eax, 1 * 65536 - 1
add ebx, 1 * 65536 - 1
call draw_rectangle
 
; window caption
 
call drawwindow_III_caption
 
; window client area
 
; do we need to draw it?
mov edi, [esi + WDATA.cl_workarea]
test edi, 0x40000000
jnz .exit
 
; does client area have a positive size on screen?
mov edx, [esi + WDATA.box.top]
add edx, 21 + 5
mov ebx, [esi + WDATA.box.top]
add ebx, [esi + WDATA.box.height]
cmp edx, ebx
jg .exit
 
; okay, let's draw it
mov eax, 5
mov ebx, 20
mov ecx, [esi + WDATA.box.width]
mov edx, [esi + WDATA.box.height]
sub ecx, 4
sub edx, 4
call [drawbar]
 
.exit:
popad
ret
 
align 4
;------------------------------------------------------------------------------
waredraw: ;////////////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Activate window, redrawing if necessary
;------------------------------------------------------------------------------
; is it overlapped by another window now?
push ecx
call window._.check_window_draw
test ecx, ecx
pop ecx
jz .do_not_draw
 
; yes it is, activate and update screen buffer
mov byte[MOUSE_DOWN], 1
call window._.window_activate
 
pushad
mov edi, [TASK_COUNT]
movzx esi, word[WIN_POS + edi * 2]
shl esi, 5
add esi, window_data
 
mov eax, [esi + WDATA.box.left]
mov ebx, [esi + WDATA.box.top]
mov ecx, [esi + WDATA.box.width]
mov edx, [esi + WDATA.box.height]
 
add ecx, eax
add edx, ebx
 
mov edi, [TASK_COUNT]
movzx esi, word[WIN_POS + edi * 2]
call window._.set_screen
popad
 
; tell application to redraw itself
mov [edi + WDATA.fl_redraw], 1
mov byte[MOUSE_DOWN], 0
ret
 
.do_not_draw:
; no it's not, just activate the window
call window._.window_activate
mov byte[MOUSE_DOWN], 0
mov byte[MOUSE_BACKGROUND], 0
mov byte[DONT_DRAW_MOUSE], 0
ret
 
align 4
;------------------------------------------------------------------------------
minimize_window: ;/////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;> eax = window number on screen
;------------------------------------------------------------------------------
;# corrupts [dl*]
;------------------------------------------------------------------------------
push edi
pushfd
cli
 
; is it already minimized?
movzx edi, word[WIN_POS + eax * 2]
shl edi, 5
add edi, window_data
test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED
jnz .exit
 
push eax ebx ecx edx esi
 
; no it's not, let's do that
or [edi + WDATA.fl_wstate], WSTATE_MINIMIZED
mov eax, [edi + WDATA.box.left]
mov [draw_limits.left], eax
mov ecx, eax
add ecx, [edi + WDATA.box.width]
mov [draw_limits.right], ecx
mov ebx, [edi + WDATA.box.top]
mov [draw_limits.top], ebx
mov edx, ebx
add edx, [edi + WDATA.box.height]
mov [draw_limits.bottom], edx
call calculatescreen
xor esi, esi
xor eax, eax
call redrawscreen
 
pop esi edx ecx ebx eax
 
.exit:
popfd
pop edi
ret
 
align 4
;------------------------------------------------------------------------------
restore_minimized_window: ;////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;> eax = window number on screen
;------------------------------------------------------------------------------
;# corrupts [dl*]
;------------------------------------------------------------------------------
pushad
pushfd
cli
 
; is it already restored?
movzx esi, word[WIN_POS + eax * 2]
mov edi, esi
shl edi, 5
add edi, window_data
test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED
jz .exit
 
; no it's not, let's do that
mov [edi + WDATA.fl_redraw], 1
and [edi + WDATA.fl_wstate], not WSTATE_MINIMIZED
mov ebp, window._.set_screen
cmp eax, [TASK_COUNT]
jz @f
mov ebp, calculatescreen
@@: mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.top]
mov ecx, [edi + WDATA.box.width]
mov edx, [edi + WDATA.box.height]
add ecx, eax
add edx, ebx
call ebp
 
mov byte[MOUSE_BACKGROUND], 0
 
.exit:
popfd
popad
ret
 
align 4
;------------------------------------------------------------------------------
checkwindows: ;////////////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Check for user-initiated window operations
;------------------------------------------------------------------------------
pushad
 
; do we have window minimize/restore request?
cmp [window_minimize], 0
je .check_for_mouse_buttons_state
 
; okay, minimize or restore top-most window and exit
mov eax, [TASK_COUNT]
mov bl, 0
xchg [window_minimize], bl
dec bl
jnz @f
call minimize_window
jmp .check_for_mouse_buttons_state
@@: call restore_minimized_window
 
.check_for_mouse_buttons_state:
; do we have any mouse buttons pressed?
cmp byte[BTN_DOWN], 0
jne .mouse_buttons_pressed
 
mov [bPressedMouseXY_W], 0
jmp .exit
 
.mouse_buttons_pressed:
; yes we do, iterate and ...
mov esi, [TASK_COUNT]
inc esi
 
cmp [bPressedMouseXY_W], 1
ja .next_window
inc [bPressedMouseXY_W]
jnc .next_window
push dword[MOUSE_X]
pop dword[mx]
 
.next_window:
cmp esi, 2
jb .exit
 
dec esi
 
; is that window not minimized?
movzx edi, word[WIN_POS + esi * 2]
shl edi, 5
add edi, window_data
test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED
jnz .next_window
 
movzx eax, [mx]
movzx ebx, [my]
 
; is the cursor inside screen bounds of that window?
mov ecx, [edi + WDATA.box.left]
mov edx, [edi + WDATA.box.top]
cmp eax, ecx
jl .next_window
cmp ebx, edx
jl .next_window
add ecx, [edi + WDATA.box.width]
add edx, [edi + WDATA.box.height]
cmp eax, ecx
jge .next_window
cmp ebx, edx
jge .next_window
 
; is that a top-most (which means active) window?
cmp esi, [TASK_COUNT]
je .check_for_moving_or_resizing
 
; no it's not, did we just press mouse button down above it or was it
; already pressed before?
cmp [bPressedMouseXY_W], 1
ja .exit
 
; okay, we just pressed the button, activate this window and exit
lea esi, [WIN_POS + esi * 2]
call waredraw
jmp .exit
 
.check_for_moving_or_resizing:
; is that window movable?
test byte[edi + WDATA.cl_titlebar + 3], 0x01
jnz .exit
 
; yes it is, is it rolled up?
test [edi + WDATA.fl_wstate], WSTATE_ROLLEDUP
jnz .check_for_cursor_on_caption
 
; no it's not, can it be resized then?
mov [do_resize_from_corner], 0
mov dl, [edi + WDATA.fl_wstyle]
and dl, 0x0f
cmp dl, 0x00
je .check_for_cursor_on_caption
cmp dl, 0x01
je .check_for_cursor_on_caption
cmp dl, 0x04
je .check_for_cursor_on_caption
 
; are we going to resize it?
mov edx, [edi + WDATA.box.top]
add edx, [edi + WDATA.box.height]
sub edx, 6
cmp ebx, edx
jl .check_for_cursor_on_caption
 
; yes we do, remember that
mov [do_resize_from_corner], 1
jmp .set_move_resize_flag
 
.check_for_cursor_on_caption:
; is the cursor inside window titlebar?
push eax
call window._.get_titlebar_height
add eax, [edi + WDATA.box.top]
cmp ebx, eax
pop eax
jge .exit
 
; calculate duration between two clicks
mov ecx, [timer_ticks]
mov edx, ecx
sub edx, [latest_window_touch]
mov [latest_window_touch], ecx
mov [latest_window_touch_delta], edx
 
.set_move_resize_flag:
mov cl, [BTN_DOWN]
mov [do_resize], cl
 
mov ecx, [edi + WDATA.box.left]
mov edx, [edi + WDATA.box.top]
 
push ecx edx
mov [draw_limits.left], ecx
mov [draw_limits.top], edx
add ecx, [edi + WDATA.box.width]
add edx, [edi + WDATA.box.height]
mov [draw_limits.right], ecx
mov [draw_limits.bottom], edx
pop edx ecx
 
; calculate window-relative cursor coordinates
sub eax, ecx
sub ebx, edx
 
push dword[MOUSE_X]
pop dword[WIN_TEMP_XY]
 
; save old window coordinates
push eax
mov eax, [edi + WDATA.box.left]
mov [old_window_pos.left], eax
mov [new_window_pos.left], eax
mov eax, [edi + WDATA.box.top]
mov [old_window_pos.top], eax
mov [new_window_pos.top], eax
mov eax, [edi + WDATA.box.width]
mov [old_window_pos.width], eax
mov [new_window_pos.width], eax
mov eax, [edi + WDATA.box.height]
mov [old_window_pos.height], eax
mov [new_window_pos.height], eax
pop eax
 
; draw negative moving/sizing frame
call window._.draw_window_frames
 
mov [reposition], 0
mov byte[MOUSE_DOWN], 1
 
.next_mouse_state_check:
; process OS events
mov byte[DONT_DRAW_MOUSE], 1
call checkidle
call checkVga_N13
mov byte[MOUSE_BACKGROUND], 0
call [draw_pointer]
pushad
call stack_handler
popad
 
; did cursor position change?
mov esi, [WIN_TEMP_XY]
cmp esi, [MOUSE_X]
je .check_for_new_mouse_buttons_state
 
; yes it did, calculate window-relative cursor coordinates
movzx ecx, word[MOUSE_X]
movzx edx, word[MOUSE_Y]
sub ecx, eax
sub edx, ebx
 
push eax ebx
 
; we're going to draw new frame, erasing the old one
call window._.draw_window_frames
 
; are we moving it right now?
cmp [do_resize_from_corner], 0
jne .resize_window
 
; yes we do, check if it's inside the screen area
mov eax, [Screen_Max_X]
mov ebx, [Screen_Max_Y]
 
mov [new_window_pos.left], 0
or ecx, ecx
jle .check_for_new_vert_cursor_pos
mov [reposition], 1
sub eax, [new_window_pos.width]
mov [new_window_pos.left], eax
cmp ecx, eax
jge .check_for_new_vert_cursor_pos
mov [new_window_pos.left], ecx
 
.check_for_new_vert_cursor_pos:
mov [new_window_pos.top], 0
or edx, edx
jle .draw_new_window_frame
mov [reposition], 1
sub ebx, [new_window_pos.height]
mov [new_window_pos.top], ebx
cmp edx, ebx
jge .draw_new_window_frame
mov [new_window_pos.top], edx
jmp .draw_new_window_frame
 
.resize_window:
push eax ebx edx
 
mov edx, edi
sub edx, window_data
lea edx, [SLOT_BASE + edx * 8]
 
movzx eax, word[MOUSE_X]
cmp eax, [edi + WDATA.box.left]
jb .fix_new_vert_size
sub eax, [edi + WDATA.box.left]
cmp eax, 32
jge @f
mov eax, 32
@@: mov [new_window_pos.width], eax
 
.fix_new_vert_size:
call window._.get_rolledup_height
mov ebx, eax
movzx eax, word[MOUSE_Y]
cmp eax, [edi + WDATA.box.top]
jb .set_reposition_flag
sub eax, [edi + WDATA.box.top]
cmp eax, ebx
jge @f
mov eax, ebx
@@: mov [new_window_pos.height], eax
 
.set_reposition_flag:
mov [reposition], 1
 
pop edx ebx eax
 
.draw_new_window_frame:
pop ebx eax
 
; draw new window moving/sizing frame
call window._.draw_window_frames
 
mov esi, [MOUSE_X]
mov [WIN_TEMP_XY], esi
 
.check_for_new_mouse_buttons_state:
; did user release mouse button(s)?
cmp byte[BTN_DOWN], 0
jne .next_mouse_state_check
 
; yes he did, moving/sizing is over
mov byte[DONT_DRAW_MOUSE], 1
mov cl, 0
test [edi + WDATA.fl_wstate], WSTATE_MAXIMIZED
jnz .check_other_actions
 
mov cl, [reposition]
 
; draw negative frame once again to hide it
call window._.draw_window_frames
 
; save new window bounds
mov eax, [new_window_pos.left]
mov [edi + WDATA.box.left], eax
mov eax, [new_window_pos.top]
mov [edi + WDATA.box.top], eax
mov eax, [new_window_pos.width]
mov [edi + WDATA.box.width], eax
mov eax, [new_window_pos.height]
mov [edi + WDATA.box.height], eax
call set_window_clientbox
 
cmp cl, 1
jne .check_other_actions
push esi edi ecx
mov esi, edi
mov ecx, 2
test [edi + WDATA.fl_wstate], WSTATE_ROLLEDUP or WSTATE_MAXIMIZED
jnz @f
add ecx, 2
@@: sub edi, window_data
shr edi, 5
shl edi, 8
add edi, SLOT_BASE + APPDATA.saved_box
cld
rep movsd
pop ecx edi esi
 
.check_other_actions:
mov [reposition], cl
 
pushad
 
mov dl, [edi + WDATA.fl_wstyle]
and dl, 0x0f
cmp dl, 0x00
je .check_if_window_fits_screen
cmp dl, 0x01
je .check_if_window_fits_screen
 
cmp cl, 1
je .no_window_sizing
mov edx, edi
sub edx, window_data
shr edx, 5
shl edx, 8
add edx, SLOT_BASE
 
; did we right-click on titlebar?
cmp [do_resize], 2
jne .check_maximization_request
 
; yes we did, toggle normal/rolled up window state
xor [edi + WDATA.fl_wstate], WSTATE_ROLLEDUP
mov [reposition], 1
 
; calculate and set appropriate window height
test [edi + WDATA.fl_wstate], WSTATE_ROLLEDUP
jz @f
call window._.get_rolledup_height
jmp .set_new_window_height
@@: mov eax, [edx + APPDATA.saved_box.height]
test [edi + WDATA.fl_wstate], WSTATE_MAXIMIZED
jz .set_new_window_height
mov eax, [screen_workarea.bottom]
sub eax, [screen_workarea.top]
 
.set_new_window_height:
mov [edi + WDATA.box.height], eax
add eax, [edi + WDATA.box.top]
cmp eax, [Screen_Max_Y]
jbe @f
mov eax, [Screen_Max_Y]
sub eax, [edi + WDATA.box.height]
mov [edi + WDATA.box.top], eax
@@: call check_window_position
call set_window_clientbox
 
.check_maximization_request:
; can window change its height?
push edx
mov dl, [edi + WDATA.fl_wstyle]
and dl, 0x0f
cmp dl, 0x04
pop edx
je .check_if_window_fits_screen
 
; was it really a maximize/restore request?
cmp [do_resize], 1
jne .check_if_window_fits_screen
cmp [do_resize_from_corner], 0
jne .check_if_window_fits_screen
cmp [latest_window_touch_delta], 50
jg .check_if_window_fits_screen
 
; yes is was, toggle normal/maximized window state
xor [edi + WDATA.fl_wstate], WSTATE_MAXIMIZED
mov [reposition], 1
 
; calculate and set appropriate window bounds
test [edi + WDATA.fl_wstate], WSTATE_MAXIMIZED
jz .restore_normal_window_size
mov eax, [screen_workarea.left]
mov [edi + WDATA.box.left], eax
sub eax, [screen_workarea.right]
neg eax
mov [edi + WDATA.box.width], eax
mov eax, [screen_workarea.top]
mov [edi + WDATA.box.top], eax
test [edi + WDATA.fl_wstate], WSTATE_ROLLEDUP
jnz .calculate_window_client_area
sub eax, [screen_workarea.bottom]
neg eax
mov [edi + WDATA.box.height], eax
jmp .calculate_window_client_area
 
.restore_normal_window_size:
push [edi + WDATA.box.height]
push edi
lea esi, [edx + APPDATA.saved_box]
mov ecx, 4
cld
rep movsd
pop edi
pop eax
test [edi + WDATA.fl_wstate], WSTATE_ROLLEDUP
jz .calculate_window_client_area
mov [edi + WDATA.box.height], eax
 
.calculate_window_client_area:
call set_window_clientbox
 
.check_if_window_fits_screen:
; does window fit into screen area?
mov eax, [edi + WDATA.box.top]
add eax, [edi + WDATA.box.height]
cmp eax, [Screen_Max_Y]
jbe .no_window_sizing
mov eax, [edi + WDATA.box.left]
add eax, [edi + WDATA.box.width]
cmp eax, [Screen_Max_X]
jbe .no_window_sizing
 
; no it doesn't, fix that
mov eax, [Screen_Max_X]
sub eax, [edi + WDATA.box.width]
mov [edi + WDATA.box.left], eax
mov eax, [Screen_Max_Y]
sub eax, [edi + WDATA.box.height]
mov [edi + WDATA.box.top], eax
call set_window_clientbox
 
.no_window_sizing:
popad
 
; did somethins actually change its place?
cmp [reposition], 0
je .reset_vars
 
mov byte[DONT_DRAW_MOUSE], 1
 
push eax ebx ecx edx
 
; recalculate screen buffer at new position
mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.top]
mov ecx, [edi + WDATA.box.width]
mov edx, [edi + WDATA.box.height]
add ecx, eax
add edx, ebx
call calculatescreen
 
; recalculate screen buffer at old position
mov eax, [old_window_pos.left]
mov ebx, [old_window_pos.top]
mov ecx, [old_window_pos.width]
mov edx, [old_window_pos.height]
add ecx, eax
add edx, ebx
call calculatescreen
 
pop edx ecx ebx eax
 
mov eax, edi
call redrawscreen
 
; tell window to redraw itself
mov [edi + WDATA.fl_redraw], 1
 
; wait a bit for window to redraw itself
mov ecx, 100
 
.next_idle_cycle:
mov byte[DONT_DRAW_MOUSE], 1
call checkidle
cmp [edi + WDATA.fl_redraw], 0
jz .reset_vars
loop .next_idle_cycle
 
.reset_vars:
mov byte[DONT_DRAW_MOUSE], 0 ; mouse pointer
mov byte[MOUSE_BACKGROUND], 0 ; no mouse under
mov byte[MOUSE_DOWN], 0 ; react to mouse up/down
 
.exit:
popad
ret
 
;==============================================================================
;///// private functions //////////////////////////////////////////////////////
;==============================================================================
 
align 4
;------------------------------------------------------------------------------
window._.get_titlebar_height: ;////////////////////////////////////////////////
;------------------------------------------------------------------------------
;> edi = pointer to WDATA
;------------------------------------------------------------------------------
mov al, [edi + WDATA.fl_wstyle]
and al, 0x0f
cmp al, 0x03
jne @f
mov eax, [_skinh]
ret
@@: mov eax, 21
ret
 
align 4
;------------------------------------------------------------------------------
window._.get_rolledup_height: ;////////////////////////////////////////////////
;------------------------------------------------------------------------------
;> edi = pointer to WDATA
;------------------------------------------------------------------------------
mov al, [edi + WDATA.fl_wstyle]
and al, 0x0f
cmp al, 0x03
jb @f
mov eax, [_skinh]
add eax, 3
ret
@@: or al, al
jnz @f
mov eax, 21
ret
@@: mov eax, 21 + 2
ret
 
align 4
;------------------------------------------------------------------------------
window._.set_screen: ;/////////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Reserve window area in screen buffer
;------------------------------------------------------------------------------
;> eax = left
;> ebx = top
;> ecx = right
;> edx = bottom
;> esi = process number
;------------------------------------------------------------------------------
virtual at esp
ff_x dd ?
ff_y dd ?
ff_width dd ?
ff_xsz dd ?
ff_ysz dd ?
ff_scale dd ?
end virtual
 
pushad
 
cmp esi, 1
jz .check_for_shaped_window
mov edi, esi
shl edi, 5
cmp [window_data + edi + WDATA.box.width], 0
jnz .check_for_shaped_window
cmp [window_data + edi + WDATA.box.height], 0
jz .exit
 
.check_for_shaped_window:
mov edi, esi
shl edi, 8
add edi, SLOT_BASE
cmp [edi + APPDATA.wnd_shape], 0
jne .shaped_window
 
; get x&y size
sub ecx, eax
sub edx, ebx
inc ecx
inc edx
 
; get WinMap start
mov edi, [Screen_Max_X]
inc edi
imul edi, ebx
add edi, eax
add edi, [_WinMapAddress]
mov eax, esi
 
.next_line:
push ecx
rep stosb
pop ecx
add edi, [Screen_Max_X]
inc edi
sub edi, ecx
dec edx
jnz .next_line
 
jmp .exit
 
.shaped_window:
; for (y=0; y <= x_size; y++)
; for (x=0; x <= x_size; x++)
; if (shape[coord(x,y,scale)]==1)
; set_pixel(x, y, process_number);
 
sub ecx, eax
sub edx, ebx
inc ecx
inc edx
 
push [edi + APPDATA.wnd_shape_scale] ; push scale first -> for loop
 
; get WinMap start -> ebp
push eax
mov eax, [Screen_Max_X] ; screen_sx
inc eax
imul eax, ebx
add eax, [esp]
add eax, [_WinMapAddress]
mov ebp, eax
 
mov edi, [edi + APPDATA.wnd_shape]
pop eax
 
; eax = x_start
; ebx = y_start
; ecx = x_size
; edx = y_size
; esi = process_number
; edi = &shape
; [scale]
push edx ecx ; for loop - x,y size
 
mov ecx, esi
shl ecx, 5
mov edx, [window_data + ecx + WDATA.box.top]
push [window_data + ecx + WDATA.box.width] ; for loop - width
mov ecx, [window_data + ecx + WDATA.box.left]
sub ebx, edx
sub eax, ecx
push ebx eax ; for loop - x,y
 
add [ff_xsz], eax
add [ff_ysz], ebx
 
mov ebx, [ff_y]
 
.ff_new_y:
mov edx, [ff_x]
 
.ff_new_x:
; -- body --
mov ecx, [ff_scale]
mov eax, [ff_width]
inc eax
shr eax, cl
push ebx edx
shr ebx, cl
shr edx, cl
imul eax, ebx
add eax, edx
pop edx ebx
add eax, edi
call .read_byte
test al,al
jz @f
mov eax, esi
mov [ebp], al
; -- end body --
@@: inc ebp
inc edx
cmp edx, [ff_xsz]
jb .ff_new_x
 
sub ebp, [ff_xsz]
add ebp, [ff_x]
add ebp, [Screen_Max_X] ; screen.x
inc ebp
inc ebx
cmp ebx, [ff_ysz]
jb .ff_new_y
 
add esp, 24
 
.exit:
popad
ret
 
.read_byte:
; eax - address
; esi - slot
push eax ecx edx esi
xchg eax, esi
lea ecx, [esp + 12]
mov edx, 1
call read_process_memory
pop esi edx ecx eax
ret
 
align 4
;------------------------------------------------------------------------------
window._.window_activate: ;////////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Activate window
;------------------------------------------------------------------------------
;> esi = pointer to WIN_POS+ window data
;------------------------------------------------------------------------------
push eax ebx
 
; if type of current active window is 3 or 4, it must be redrawn
mov eax, [TASK_COUNT]
movzx eax, word[WIN_POS + eax * 2]
shl eax, 5
add eax, window_data
mov bl, [eax + WDATA.fl_wstyle]
and bl, 0x0f
cmp bl, 0x03
je .set_window_redraw_flag
cmp bl, 0x04
je .set_window_redraw_flag
jmp .move_others_down
 
.set_window_redraw_flag:
mov [eax + WDATA.fl_redraw], 1
 
.move_others_down:
; ax <- process no
movzx eax, word[esi]
; ax <- position in window stack
movzx eax, word[WIN_STACK + eax * 2]
 
; drop others
xor ebx, ebx
 
.next_stack_window:
cmp ebx, [TASK_COUNT]
jae .move_self_up
inc ebx
cmp [WIN_STACK + ebx * 2], ax
jbe .next_stack_window
dec word[WIN_STACK + ebx * 2]
jmp .next_stack_window
 
.move_self_up:
movzx eax, word[esi]
; number of processes
mov bx, [TASK_COUNT]
; this is the last (and the upper)
mov [WIN_STACK + eax * 2], bx
 
; update on screen - window stack
xor ebx, ebx
 
.next_window_pos:
cmp ebx, [TASK_COUNT]
jae .reset_vars
inc ebx
movzx eax, word[WIN_STACK + ebx * 2]
mov [WIN_POS + eax * 2], bx
jmp .next_window_pos
 
.reset_vars:
mov byte[KEY_COUNT], 0
mov byte[BTN_COUNT], 0
mov word[MOUSE_SCROLL_H], 0
mov word[MOUSE_SCROLL_V], 0
 
pop ebx eax
ret
 
align 4
;------------------------------------------------------------------------------
window._.check_window_draw: ;//////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Check if window is necessary to draw
;------------------------------------------------------------------------------
;> edi = pointer to WDATA
;------------------------------------------------------------------------------
mov cl, [edi + WDATA.fl_wstyle]
and cl, 0x0f
cmp cl, 0x03
je .exit.redraw ; window type 3
cmp cl, 0x04
je .exit.redraw ; window type 4
 
push eax ebx edx esi
 
mov eax, edi
sub eax, window_data
shr eax, 5
 
; esi = process number
 
movzx eax, word[WIN_STACK + eax * 2] ; get value of the curr process
lea esi, [WIN_POS + eax * 2] ; get address of this process at 0xC400
 
.next_window:
add esi, 2
 
mov eax, [TASK_COUNT]
lea eax, word[WIN_POS + eax * 2] ; number of the upper window
 
cmp esi, eax
ja .exit.no_redraw
 
movzx edx, word[esi]
shl edx, 5
cmp [CURRENT_TASK + edx + TASKDATA.state], TSTATE_FREE
je .next_window
 
mov eax, [edi + WDATA.box.top]
mov ebx, [edi + WDATA.box.height]
add ebx, eax
 
mov ecx, [window_data + edx + WDATA.box.top]
cmp ecx, ebx
jge .next_window
add ecx, [window_data + edx + WDATA.box.height]
cmp eax, ecx
jge .next_window
 
mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.width]
add ebx, eax
 
mov ecx, [window_data + edx + WDATA.box.left]
cmp ecx, ebx
jge .next_window
add ecx, [window_data + edx + WDATA.box.width]
cmp eax, ecx
jge .next_window
 
pop esi edx ebx eax
 
.exit.redraw:
xor ecx, ecx
inc ecx
ret
 
.exit.no_redraw:
pop esi edx ebx eax
xor ecx, ecx
ret
 
align 4
;------------------------------------------------------------------------------
window._.draw_window_frames: ;/////////////////////////////////////////////////
;------------------------------------------------------------------------------
;? Draw negative window frames
;------------------------------------------------------------------------------
;> edi = pointer to WDATA
;------------------------------------------------------------------------------
push eax
cli
 
test [edi + WDATA.fl_wstate], WSTATE_MAXIMIZED
jnz .exit
mov eax, [new_window_pos.left]
cmp eax, [edi + WDATA.box.left]
jnz .draw
mov eax, [new_window_pos.width]
cmp eax, [edi + WDATA.box.width]
jnz .draw
mov eax, [new_window_pos.top]
cmp eax, [edi + WDATA.box.top]
jnz .draw
mov eax, [new_window_pos.height]
cmp eax, [edi + WDATA.box.height]
jnz .draw
xor [edi + WDATA.fl_wdrawn], 2
 
.draw:
push ebx esi
mov eax, [new_window_pos.left - 2]
mov ax, word[new_window_pos.left]
add ax, word[new_window_pos.width]
mov ebx, [new_window_pos.top - 2]
mov bx, word[new_window_pos.top]
add bx, word[new_window_pos.height]
mov esi, 0x01000000
call draw_rectangle.forced
pop esi ebx
 
.exit:
sti
pop eax
ret
 
.forced:
push eax
cli
jmp .draw