;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2018. 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 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; window_create_textbox
; Initialises the data structure for our multiline textbox
;
; in: window ptr in ebx
; out: eax = 0 on error
; ecx, edi = destroyed
window_create_textbox:
push ebx
; allocate the window data block
mcall 68, 12, sizeof.window_data
test eax, eax
pop ebx
jz .fail
; fill it with all zeros
push eax
mov edi, eax
mov ecx, (sizeof.window_data+3)/4
xor eax, eax
rep stosd
pop eax
mov [ebx + window.data_ptr], eax
mov [ebx + window.flags], FLAG_SCROLL_LOW
add eax, window_data.text+2 ; let text begin at offset 2, this way the text will be prepended with two null bytes
mov [ebx + window.text_start], eax
mov [ebx + window.text_print], eax
mov [ebx + window.text_write], eax
mov [ebx + window.text_scanned], eax
mov [ebx + window.text_lines], 0
mov [ebx + window.text_line_print], 0
add eax, TEXT_BUFFERSIZE-1
mov [ebx + window.text_end], eax
.fail:
ret
; window_set_name
; Fills in the window name in window structure
;
; IN: esi = ptr to name
; ebx = window ptr
; OUT: esi = ptr to next parameter
; ebx = window ptr
; eax, ecx, edx, edi = destroyed
window_set_name:
lea edi, [ebx + window.name]
mov ecx, MAX_WINDOWNAME_LEN
.loop:
lodsb
cmp al, 0x21 ; name ends with 0, space or !
jbe .addzero
stosb
dec ecx
jnz .loop
.addzero:
xor al, al
stosb
push esi ebx
call draw_window_tabs
pop ebx esi
ret
window_close_all:
.loop:
call window_close
cmp [window_print], 0
jne .loop
ret
window_close: ; closes the 'print' window
; Remove the window (overwrite current structure with trailing ones)
mov edi, [window_print]
push [edi + window.data_ptr] ; remember data ptr so we can free it later
lea esi, [edi + sizeof.window]
mov ecx, windows + MAX_WINDOWS*sizeof.window
sub ecx, esi
rep movsb
; Completely zero the trailing window block (there will always be one!)
mov ecx, sizeof.window
xor al, al
rep stosb
; Clear the window data block to erase the chat history and nicknames
mov edi, [esp]
mov ecx, sizeof.window_data ; TEXT_BUFFERSIZE + MAX_NICK_LEN * MAX_USERS
rep stosb
; And now free the window data block
pop ecx
mcall 68, 13
; We closed this window so we need to show another
; Is there still a window in the active position?
mov edi, [window_active]
cmp [edi + window.data_ptr], 0
jne .redraw
; Did we just close the last window?
cmp edi, windows
je .closed_last
; Nope, move one window to the left
sub edi, sizeof.window
mov [window_active], edi
mov [window_print], edi
jmp .redraw
.closed_last:
xor edi, edi
mov [window_active], edi
mov [window_print], edi
; At last, redraw everything
.redraw:
call draw_window
ret
; window_find:
; search for a window with given name in the window list
;
; IN: esi = ptr to start of window name
; OUT: ebx = window ptr, or 0 if none found
; esi = ptr to end of window name, if window was found
window_find:
mov ebx, windows
mov eax, MAX_WINDOWS
.scanloop:
push esi
cmp [ebx + window.type], WINDOWTYPE_NONE
je .try_next
lea edi, [ebx + window.name]
mov ecx, MAX_WINDOWNAME_LEN
repe cmpsb
cmp byte[edi-1], 0 ; last equall character was null? yes, the strings match!
je .got_it
cmp byte[edi], 0 ; we're at the end of string1.. ?
jne .try_next
cmp byte[esi], 0x21 ; and the end of string2? yes!
jbe .got_it
.try_next:
pop esi
add ebx, sizeof.window
dec eax
jnz .scanloop
xor ebx, ebx
ret
.got_it:
add esp, 4
ret
; window_open:
; open a window with a given name, if it does not exist, create it
; This procedure only affects window_print ptr, not window_active!
;
; IN: esi = ptr to ASCIIZ windowname
; OUT: esi = ptr to next parameter
; ebx = window ptr/0 on error
window_open:
; Skip heading spaces
lodsb
cmp al, ' '
je window_open
cmp al, ':'
je window_open
dec esi
call window_find
test ebx, ebx
jnz .got_it
; create channel window - search for empty slot
.create_it:
mov ebx, windows
mov ecx, MAX_WINDOWS
.scanloop2:
cmp [ebx + window.type], WINDOWTYPE_NONE
je .free_found
add ebx, sizeof.window
dec ecx
jnz .scanloop2
jmp .error
.free_found:
call window_create_textbox
test eax, eax
jz .error
mov [ebx + window.type], WINDOWTYPE_CHAT ; FIXME: let caller handle this ?
call window_set_name
.got_it:
lodsb
cmp al, ' '
je .got_it
cmp al, ':'
je .got_it
dec esi
mov [window_print], ebx
ret
.error:
xor ebx, ebx
ret