KolibriOS/kolibrios
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Console: correct handeling of escape codes <esc>[J, <esc>[0J, <esc>[1J, <esc>[2J

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git-svn-id: svn://kolibrios.org@3885 a494cfbc-eb01-0410-851d-a64ba20cac60
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hidnplayr 2013-09-02 14:30:01 +00:00
parent 3189551ee6
commit 5b768d8b9a
1 changed files with 45 additions and 2 deletions
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47
programs/develop/libraries/console/console.asm
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@ -820,7 +820,7 @@ con.write_special_char:
mov [con_esc], 0
mov [con_sci], 0 ; in any case, leave Esc mode
cmp al, 'J'
jz .cls
jz .clear
cmp al, 'H'
jz .setcursor
cmp al, 'f'
@ -836,7 +836,50 @@ con.write_special_char:
cmp al, 'D'
jz .cursor_left
ret ; simply skip unknown sequences
.cls:
.clear:
mov eax, [con_esc_attrs]
test eax, eax
jz .clear_till_end_of_screen ; <esc>[0J (or <esc>[J)
dec eax
jz .clear_till_start_of_screen ; <esc>[1J
dec eax
je .cls ; <esc>[2J
ret ; unknown sequence
.clear_till_end_of_screen:
push edi ecx
mov ecx, [con.scr_width]
imul ecx, [con.scr_height]
mov edi, [con.cur_y]
imul edi, [con.scr_width]
add edi, [con.cur_x]
sub ecx, edi
shl edi, 1
add edi, [con.data]
mov ah, byte[con_flags]
mov al, ' '
rep stosw
and [con.cur_x], 0
and [con.cur_y], 0
pop ecx edi
ret
.clear_till_start_of_screen:
push edi ecx
mov ecx, [con.cur_y]
imul ecx, [con.scr_width]
add ecx, [con.cur_x]
mov edi, [con.data]
mov ah, byte[con_flags]
mov al, ' '
rep stosw
pop ecx edi
ret
.cls: ; clear screen completely
push ecx
and [con.cur_x], 0
and [con.cur_y], 0