;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2014. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; Written by hidnplayr@kolibrios.org ;;
;; ;;
;; GNU GENERAL PUBLIC LICENSE ;;
;; Version 2, June 1991 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
text_insert_newlines: ; esi = ASCIIZ string
xor edx, edx ; number of lines of text
cmp byte[esi], 0
je .done
.next_line:
xor ebx, ebx
mov ecx, [textbox_width]
inc ecx
.more:
dec ecx
jz .end_of_line
lodsb ; get one character of the string
test al, al ; end of string?
jz .almost_done
cmp al, ' ' ; it's a space! remember its position
je .space
cmp al, 13 ; we already inserted a newline once, make it a space again
je .soft_nl
cmp al, 10 ; it's a newline, continue onto the next line
jne .more
inc edx
jmp .next_line
.soft_nl:
mov byte[esi-1], ' '
.space:
mov ebx, esi ; last detected space
jmp .more
.end_of_line:
inc edx
test ebx, ebx ; did we detect any spaces on this line?
jz .next_line ; no: just continue onto the next line
mov byte[ebx-1], 13 ; yes: replace last space on line with a soft newline
mov esi, ebx ; and continue parsing just after last space
jmp .next_line ;
.almost_done:
dec esi
.done:
ret
; When you set the direction flag before calling, you can also scan for previous line!
; in: esi
; out:esi
text_nextline:
mov ecx, [textbox_width]
.loop:
lodsb
test al, al
jz .done
cmp al, 10
je .done
cmp al, 13
je .done
dec ecx
jnz .loop
.done:
ret
print_text: ; eax = start ptr
; dl = end char
pusha
ptr2:
mov bl, [eax]
cmp bl, dl
je .done
test bl, bl
jz .done
call print_character
inc eax
jmp ptr2
.done:
popa
ret
print_text2: ; esi = ptr to ASCIIZ string
pusha
.loop:
lodsb
test al, al
jz .done
mov bl, al
call print_character
jmp .loop
.done:
popa
ret
print_character:
push esi edi
mov esi, [window_print]
mov edi, [esi + window.text_write]
mov byte[edi], bl
inc edi
cmp edi, [esi + window.text_end]
jae .uh_ow
mov [esi + window.text_write], edi
.continue:
or [esi + window.flags], FLAG_UPDATED
pop edi esi
ret
.uh_ow:
pusha
mov edi, [esi + window.text_start]
mov [esi + window.text_print], edi
lea esi, [edi + TEXT_BUFFERSIZE/2]
call text_nextline
mov ecx, TEXT_BUFFERSIZE/8
rep movsd
mov esi, edi
call text_insert_newlines
mov ebx, [window_print]
mov [ebx + window.text_lines], edx
mov [ebx + window.text_scanned], esi
mov [ebx + window.text_write], esi
mov [ebx + window.text_line_print], 0
popa
jmp .continue
draw_channel_text:
mov edi, [window_active]
and [edi + window.flags], not FLAG_UPDATED ; clear the 'window is updated' flag
; Scan new text for newlines
mov esi, [edi + window.text_scanned]
call text_insert_newlines
add [edi + window.text_lines], edx
mov [edi + window.text_scanned], esi
; Is scrollbar at lowest position?
mov edx, [scroll2.position]
test edx, edx
jz .yesscroll
add edx, [scroll2.cur_area]
sub edx, [scroll2.max_area]
jne .noscroll
.yesscroll:
; Scrollbar was at lowest position, scroll down automatically when new text arrived.
mov edx, [edi + window.text_lines]
sub edx, [textbox_height]
jle .noscroll ; There are less lines of text than fit into the window, dont scroll..
sub edx, [edi + window.text_line_print]
je .noscroll ; We are already at the bottom pos, dont scroll..
.scroll_to_pos: ; edx = number of lines to go up/down (flags must indicate direction)
pushf
add [edi + window.text_line_print], edx
mov esi, [edi + window.text_print]
popf
ja .loop_forward
std ; set direction flag so we can scan backwards
dec esi
dec esi ; move our cursor just in front of newline, for scanning backwards
.loop_backward:
call text_nextline
inc edx
jnz .loop_backward
inc esi
inc esi ; move the cursor just after last newline
cld
jmp .ok
.loop_forward:
call text_nextline
dec edx
jnz .loop_forward
.ok:
mov [edi + window.text_print], esi
.noscroll:
; Calculate start offset coordinates (align text to bottom)
mov ebx, [textbox_height]
sub ebx, [edi + window.text_lines]
jb .no_offset
imul ebx, FONT_HEIGHT
push [edi + window.text_start]
pop [edi + window.text_print]
jmp .draw_text
.no_offset:
xor ebx, ebx
.draw_text:
; Prepare to actually draw some text
mov eax, [textbox_height] ; max number of lines to draw
add ebx, TEXT_X shl 16 + TEXT_Y
mov ecx, [colors.work_text] ; default text color
mov edx, [edi + window.text_print]
.drawloop:
cmp byte[edx], 0
je .end_of_text
; Clear one row of characters
pusha
mov cx, bx
shl ecx, 16
mov cx, FONT_HEIGHT
mov ebx, TEXT_X shl 16
mov bx, word[textbox_width]
imul bx, FONT_WIDTH
mov edx, [colors.work]
mcall 13 ; draw rectangle
popa
mov esi, edx
add esi, [textbox_width]
.line:
cmp byte[edx], 0
je .end_of_text
cmp byte[edx], 13
je .newline_soft
cmp byte[edx], 10
je .newline_hard
push esi eax
cmp byte[edx], 3 ; escape code for mIRC colors
jne .no_colors
inc edx
call dec_to_esi
jz .no_colors
mov ecx, [irc_colors + 4*esi]
cmp byte[edx], ',' ; background color?
jne .no_colors
inc edx
call dec_to_esi
jz .no_colors
mov edi, [irc_colors + 4*esi]
or ecx, 0x40000000
.no_colors:
.draw:
mov esi, 1
mcall 4 ; draw text
add ebx, FONT_WIDTH shl 16
inc edx
pop eax esi
cmp edx, esi
jb .line
jmp .line_full
.newline_hard:
mov ecx, [colors.work_text]
.newline_soft:
inc edx
.line_full:
and ebx, 0x0000ffff
add ebx, TEXT_X shl 16 + FONT_HEIGHT
dec eax
jnz .drawloop
.end_of_text:
; Update and draw scrollbar when nescessary
mov edi, [window_active]
mov edx, [edi + window.text_lines]
cmp edx, [textbox_height]
jbe .scroll_done
mov [scroll2.max_area], edx
mov eax, [edi + window.text_line_print]
mov [scroll2.position], eax
push dword scroll2 ; redraw scrollbar
call [scrollbar_draw]
mov [scroll2.all_redraw], 0 ; next time, dont redraw it completely
.scroll_done:
ret
dec_to_esi:
xor esi, esi
.loop:
movzx eax, byte[edx]
sub al, '0'
jb .done
cmp al, 9
ja .done
inc edx
lea esi, [esi*4 + esi] ; esi * 5
lea esi, [esi*2 + eax] ; esi * 2 + eax
jmp .loop
.done:
cmp esi, 16
jae .fail
ret
.fail:
xor esi, esi
ret
if TIMESTAMP
print_timestamp:
pusha
mcall 3 ; get system time
mov bl, '['
call print_character
mov ecx, TIMESTAMP
.loop:
mov bl, al
shr bl, 4
add bl, '0'
call print_character
mov bl, al
and bl, 0x0f
add bl, '0'
call print_character
dec ecx
jz .done
mov bl, ':'
call print_character
shr eax, 8
jmp .loop
.done:
mov bl, ']'
call print_character
mov bl, ' '
call print_character
popa
ret
end if