;**************************************************************
; Path Show Macro for Kolibri OS
; Copyright (c) 2010, Marat Zakiyanov aka Mario79, aka Mario
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions are met:
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in the
; documentation and/or other materials provided with the distribution.
; * Neither the name of the <organization> nor the
; names of its contributors may be used to endorse or promote products
; derived from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY Marat Zakiyanov ''AS IS'' AND ANY
; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;*****************************************************************************
macro path_show_start
{
pusha
mov edi,dword [esp+36]
}
;*****************************************************************************
macro path_show_exit
{
popa
ret 4
}
;*****************************************************************************
align 16
path_show:
ps_type equ [edi] ;dword
ps_start_y equ [edi+4] ;word
ps_start_x equ [edi+6] ;word
ps_font_size_x equ [edi+8] ;word
ps_area_size_x equ [edi+10] ;word
ps_font_number equ [edi+12] ;dword
ps_background_flag equ [edi+16] ;dword
ps_font_color equ [edi+20] ;dword
ps_background_color equ [edi+24] ;dword
ps_text_pointer equ [edi+28] ;dword
ps_work_area_pointer equ [edi+32] ;dword
ps_temp_text_length equ [edi+36] ;dword
;*****************************************************************************
;*****************************************************************************
; draw event
;*****************************************************************************
;*****************************************************************************
.prepare:
path_show_start
;-------------------------------------
mov esi,ps_text_pointer
xor eax,eax
xor ecx,ecx
dec ecx
cld
@@:
lodsb
inc ecx
test eax,eax
jnz @b
mov ps_temp_text_length,ecx
movzx eax,word ps_font_size_x
imul ecx,eax
movzx eax,word ps_area_size_x
cmp ecx,eax
jae .cut
;-------------------------------------
mov esi,ps_text_pointer
mov edi,ps_work_area_pointer
xor eax,eax
@@:
lodsb
stosb
test eax,eax
jnz @b
jmp .exit
;-------------------------------------
.cut:
; copy the first 6 characters of path
mov esi,ps_text_pointer
push edi
mov edi,ps_work_area_pointer
mov ecx,6
rep movsb
; insert a line break '...'
mov al,byte '.'
mov ecx,3
rep stosb
mov ecx,edi
; calculate the display length, in characters
pop edi
movzx ebx,word ps_font_size_x
movzx eax,word ps_area_size_x
xor edx,edx
div ebx
sub eax,9
; eax - maximum length of display area, the number of characters
mov esi,ps_temp_text_length
add esi,ps_text_pointer
sub esi,eax
; esi - pointer of the last segment of the displayed text
mov edi,ecx
mov ecx,eax
rep movsb
xor eax,eax
stosb
;-------------------------------------
.exit:
path_show_exit
;*****************************************************************************
;*****************************************************************************
; draw event
;*****************************************************************************
;*****************************************************************************
.draw:
path_show_start
;-------------------------------------
mov ebx,ps_start_y
xor ecx,ecx
or ecx,0x80000000
mov eax,ps_background_flag
and eax,1b
shl eax,30
add ecx,eax
mov eax,ps_font_number
and eax,11b
shl eax,28
add ecx,eax
mov eax,ps_font_color
and eax,0xffffff
add ecx,eax
mov edx,ps_work_area_pointer
mov eax,ps_background_color
and eax,0xffffff
xor esi,esi
mov edi,eax
mcall SF_DRAW_TEXT
path_show_exit
;*****************************************************************************