mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-17 20:32:35 +03:00
431 lines
8.9 KiB
PHP
431 lines
8.9 KiB
PHP
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; drawing code for aclock
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;
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; Copyright (c) 2003 Thomas Mathys
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; killer@vantage.ch
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;
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; This program is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program; if not, write to the Free Software
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; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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;
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%ifndef _DRAW_INC
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%define _DRAW_INC
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TMR1_FACTOR dd 0.45
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TMR2_FACTOR dd 0.426315789
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SECR_FACTOR dd 0.378947368
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MINR_FACTOR dd 0.355263158
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HOURR_FACTOR dd 0.189473684
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DATE_FACTOR dd 0.1
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monthNames:
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db "Jan"
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db "Feb"
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db "Mar"
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db "Apr"
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db "May"
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db "Jun"
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db "Jul"
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db "Aug"
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db "Sep"
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db "Oct"
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db "Nov"
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db "Dec"
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;********************************************************************
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; draws the clock
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; input : nothing
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; output : nothing
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; destroys : nothing
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;********************************************************************
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drawClock:
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%push drawClock_context
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%stacksize flat
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%assign %$localsize 0
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%local i:dword, \
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TMR1X:dword, \
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TMR1Y:dword, \
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TMR2X:dword, \
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TMR2Y:dword, \
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SECRX:dword, \
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SECRY:dword, \
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MINRX:dword, \
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MINRY:dword, \
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HOURRX:dword, \
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HOURRY:dword, \
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workwidth:dword, \
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workheight:dword, \
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foo:dword
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enter %$localsize,0
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pushad
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pushfd
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; get window dimensions
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mov eax,MOS_SC_GETPROCESSINFO
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mov ebx,procInfo
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mov ecx,-1
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int 0x40
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; calculate work area size (width/height = ecx/edx)
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; if the work area is too small (maybe the window is shaded)
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; we don't draw anything.
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mov eax,MOS_SC_WINDOWPROPERTIES
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mov ebx,4 ; get skin height (eax)
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int 0x40
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mov ecx,[procInfo + MOS_PROCESSINFO.wndWidth]
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sub ecx,MOS_WND_SKIN_BORDER_LEFT+MOS_WND_SKIN_BORDER_RIGHT
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mov edx,[procInfo + MOS_PROCESSINFO.wndHeight]
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sub edx,eax
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sub edx,MOS_WND_SKIN_BORDER_BOTTOM
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cmp ecx,0 ; width too small ?
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jle .bye
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cmp edx,0 ; height too small ?
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jnle .continue
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.bye:
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jmp .byebye
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.continue:
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mov [workwidth],ecx ; save for later (for fpu)
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mov [workheight],edx
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; calculate center of clock (x/y = esi/edi)
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mov esi,[procInfo + MOS_PROCESSINFO.wndWidth]
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shr esi,1
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mov edi,[procInfo + MOS_PROCESSINFO.wndHeight]
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sub edi,MOS_WND_SKIN_BORDER_BOTTOM
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sub edi,eax
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shr edi,1
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add edi,eax
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; clear work area
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pushad
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mov ebx,(MOS_WND_SKIN_BORDER_LEFT)*0x10000 ; x start
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or ebx,ecx ; width
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mov ecx,eax ; y start
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shl ecx,16 ; (=skin height)
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or ecx,edx ; height
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mov edx,[wndColors + MOS_WNDCOLORS.work]
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mov eax,MOS_SC_DRAWBAR
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int 0x40
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popad
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; calculate second hand radii
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fild dword [workwidth]
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fmul dword [SECR_FACTOR]
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fstp dword [SECRX]
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fild dword [workheight]
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fmul dword [SECR_FACTOR]
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fstp dword [SECRY]
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; calculate minute hand radii
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fild dword [workwidth]
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fmul dword [MINR_FACTOR]
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fstp dword [MINRX]
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fild dword [workheight]
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fmul dword [MINR_FACTOR]
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fstp dword [MINRY]
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; calculate hour hand radii
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fild dword [workwidth]
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fmul dword [HOURR_FACTOR]
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fstp dword [HOURRX]
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fild dword [workheight]
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fmul dword [HOURR_FACTOR]
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fstp dword [HOURRY]
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; calculate tick mark radii
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fild dword [workwidth]
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fmul dword [TMR1_FACTOR]
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fstp dword [TMR1X]
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fild dword [workheight]
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fmul dword [TMR1_FACTOR]
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fstp dword [TMR1Y]
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fild dword [workwidth]
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fmul dword [TMR2_FACTOR]
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fstp dword [TMR2X]
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fild dword [workheight]
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fmul dword [TMR2_FACTOR]
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fstp dword [TMR2Y]
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; get system clock (edx)
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mov eax,MOS_SC_GETSYSCLOCK
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int 0x40
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mov edx,eax
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; draw second hand
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push edx
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mov eax,edx
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shr eax,16
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call bcdbin
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mov ecx,eax ; save seconds for later
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push ecx
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push eax
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fpush32 0.104719755 ; 2*pi/60
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push dword [SECRX]
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push dword [SECRY]
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push esi
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push edi
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call getHandCoords
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mov eax,MOS_SC_DRAWLINE
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shl ebx,16
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or ebx,esi
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shl ecx,16
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or ecx,edi
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mov edx,[wndColors + MOS_WNDCOLORS.workText]
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int 0x40
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pop ecx
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pop edx
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; draw minute hand
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push edx
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mov eax,edx
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shr eax,8
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call bcdbin
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mov edx,60
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mul edx
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add eax,ecx
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mov ecx,eax ; save for later
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push ecx
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push eax
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fpush32 0.001745329 ; 2*pi/60/60
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push dword [MINRX]
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push dword [MINRY]
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push esi
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push edi
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call getHandCoords
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mov eax,MOS_SC_DRAWLINE
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shl ebx,16
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or ebx,esi
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shl ecx,16
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or ecx,edi
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mov edx,[wndColors + MOS_WNDCOLORS.workText]
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int 0x40
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pop ecx
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pop edx
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; draw hour hand
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push edx
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mov eax,edx
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call bcdbin
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cmp eax,11 ; % 12 (just to be sure)
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jnae .hoursok
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sub eax,12
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.hoursok:
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mov edx,60*60
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mul edx
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add eax,ecx
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push eax
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fpush32 0.000145444 ; 2*pi/60/60/12
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push dword [HOURRX]
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push dword [HOURRY]
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push esi
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push edi
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call getHandCoords
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mov eax,MOS_SC_DRAWLINE
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shl ebx,16
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or ebx,esi
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shl ecx,16
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or ecx,edi
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mov edx,[wndColors + MOS_WNDCOLORS.workText]
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int 0x40
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pop edx
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; draw tick marks
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mov dword [i],11 ; draw 12 marks
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.drawtickmarks:
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push dword [i] ; calculate start point
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fpush32 0.523598776 ; 2*pi/12
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push dword [TMR1X]
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push dword [TMR1Y]
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push esi
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push edi
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call getHandCoords
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mov eax,ebx ; save in eax and edx
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mov edx,ecx
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push dword [i]
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fpush32 0.523598776 ; 2*pi/12
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push dword [TMR2X]
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push dword [TMR2Y]
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push esi
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push edi
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call getHandCoords
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shl eax,16
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shl edx,16
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or ebx,eax ; ebx = x start and end
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or ecx,edx ; ecx = y start and end
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mov edx,[wndColors + MOS_WNDCOLORS.workText]
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mov eax,MOS_SC_DRAWLINE
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int 0x40
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dec dword [i]
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jns .drawtickmarks
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%define DATE_WIDTH 48
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; calculate text start position
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mov eax,[procInfo+MOS_PROCESSINFO.wndWidth]
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sub eax,DATE_WIDTH ; x = (wndwidth-textwidth)/2
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shr eax,1 ; eax = x
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fild dword [workheight] ; y = DATE_FACTOR*workheight...
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fmul dword [DATE_FACTOR]
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mov [foo],edi ; ... + y_clockcenter
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fiadd dword [foo]
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fistp dword [foo]
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mov ebx,[foo] ; ebx = y
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; draw text at all ?
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cmp dword [workwidth],DATE_WIDTH ; text too wide ?
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jb .goodbye
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mov ecx,ebx ; text too high ?
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add ecx,10-1
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mov edx,[procInfo+MOS_PROCESSINFO.wndHeight]
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sub edx,MOS_WND_SKIN_BORDER_BOTTOM
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cmp ecx,edx
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jnae .yousuck
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.goodbye:
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jmp .bye
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.yousuck:
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; ebx = (x << 16) | y
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shl eax,16
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or ebx,eax
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; get date (edi)
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mov eax,MOS_SC_GETDATE
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int 0x40
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mov edi,eax
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; display month
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mov eax,edi ; get month
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shr eax,8
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call bcdbin
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; ebx contains already position
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mov ecx,[wndColors+MOS_WNDCOLORS.workText]
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lea edx,[monthNames-3+eax*2+eax]; -3 because eax = 1..12 =]
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mov esi,3 ; text length
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mov eax,MOS_SC_WRITETEXT
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int 0x40
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; display date
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add ebx,MOS_DWORD(3*6+3,0)
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mov eax,edi ; get date
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shr eax,16
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call bcdbin
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mov edx,ebx ; position must be in edx
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mov ebx,0x00020000 ; number, display two digits
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mov ecx,eax ; number to display
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mov esi,[wndColors+MOS_WNDCOLORS.workText]
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mov eax,MOS_SC_WRITENUMBER
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int 0x40
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; display year. the way we avoid the y2k bug is even
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; simpler, yet much better than in the last version:
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; now we simply display the last two digits and let the
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; user decide wether it's the year 1903 or 2003 =]
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add edx,MOS_DWORD(2*6+3,0)
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mov eax,edi ; get year
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call bcdbin
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mov ebx,0x00020000 ; number, display two digits
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mov ecx,eax ; number to display
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; edx contains already position
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mov esi,[wndColors+MOS_WNDCOLORS.workText]
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mov eax,MOS_SC_WRITENUMBER
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int 0x40
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.byebye:
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popfd
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popad
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leave
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ret
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%pop
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;**********************************************************
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; bcdbin
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; converts a 8 bit bcd number into a 32 bit binary number
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;
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; in al = 8 bit bcd number
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; out eax = 32 bit binary number
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; destroys dl,flags
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;**********************************************************
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bcdbin:
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push edx
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pushfd
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mov dl,al ; save bcd number
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shr al,4 ; convert upper nibble
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mov ah,10
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mul ah
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and dl,15 ; add lower nibble
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add al,dl
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and eax,255 ; !
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popfd
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pop edx
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ret
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;********************************************************************
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; getHandCoords
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; calculates the end point of a hand
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;
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; input (on stack, push from top to bottom):
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; ANGLE angle (integer)
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; DEG2RAD conversion factor for ANGLE (32 bit real)
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; RADIUSX x radius (32 bit real)
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; RADIUSY y radius (32 bit real)
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; CENTERX x center of the clock (integer)
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; CENTERY y center of the clock (integer)
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;
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; output:
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; ebx x coordinate in bits 0..15, bits 16..31 are zero
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; ecx y coordinate in bits 0..15, bits 16..31 are zero
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;
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; destroys:
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; nothing
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;********************************************************************
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getHandCoords:
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ANGLE equ 28
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DEG2RAD equ 24
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RADIUSX equ 20
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RADIUSY equ 16
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CENTERX equ 12
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CENTERY equ 8
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enter 0,0
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pushfd
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fild dword [ebp+ANGLE] ; get angle
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fmul dword [ebp+DEG2RAD] ; convert to radians
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fsincos
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fmul dword [ebp+RADIUSY] ; -y * radius + clockcy
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fchs
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fiadd dword [ebp+CENTERY]
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fistp dword [ebp+CENTERY]
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fmul dword [ebp+RADIUSX] ; x * radius + clockcx
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fiadd dword [ebp+CENTERX]
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fistp dword [ebp+CENTERX]
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mov ebx,[ebp+CENTERX]
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mov ecx,[ebp+CENTERY]
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popfd
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leave
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ret 4*6
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%endif
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