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