;************************************************************** ; 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 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 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 } ;***************************************************************************** macro use_path_show { 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 4 path_show_exit } ;*****************************************************************************