Home » Archimedes archive » Acorn Computing » 1994 08 subscription disc.adf » 9408s » Shareware/Event/Documents/Examples/!Redraw2/!Redraw2

Shareware/Event/Documents/Examples/!Redraw2/!Redraw2

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Archimedes archive » Acorn Computing » 1994 08 subscription disc.adf » 9408s
Filename: Shareware/Event/Documents/Examples/!Redraw2/!Redraw2
Read OK:
File size: 1BCB bytes
Load address: 0000
Exec address: 0000
File contents
    1REM > <Redraw2$Dir>.!Redraw2
    2:
    3ON ERROR MODE12:SYS"Hourglass_Smash":REPORT:PRINT" at line: ";ERL:END
    4:
    5LIBRARY "<EvntShellSystem$Path>ShellLibRT"
    6:
    7SYS "Hourglass_On"
    8:
    9SYS "Wimp_SlotSize",-1,-1 TO progsize%
   10pagesize%=1<<10
   11freespace%=&8000+progsize%
   12END=freespace%+pagesize%
   13HIMEM=freespace%
   14:
   15PROCshell_HeapManagerInit("<EvntShellSystem$Path>",freespace%)
   16PROCshell_Init
   17task%=FNshell_WimpInit_I(200,"Event Shell Program")
   18PROCshell_TraceInit("")
   19REM PROCshell_TraceOn
   20PROCshell_ResourcesInit
   21PROCapp_init
   22:
   23REM -------------------- Initialise Variables ----------------------------
   24:
   25_closedown%     =FALSE :REM Set this to TRUE when you want the program to
   26                       :REM end
   27changed%        =FALSE :REM Used to keep track of whether the data has
   28                       :REM been changed. Call PROCfile_changed() when it
   29                       :REM has. But if the program does not use data
   30                       :REM files just ignore this variable but do not
   31                       :REM delete it as the program checks it before
   32                       :REM exiting!
   33:
   34REM -------------------- Miscelleanous Initialisation --------------------
   35:
   36ON ERROR PROCshell_Error
   37:
   38SYS "Hourglass_Off"
   39REPEAT
   40  PROCshell_Action(FNshell_Poll_I(0,task%))
   41UNTIL _closedown%
   42:
   43PROCshell_Exit:END
   44:
   45REM ======================================================================
   46:
   47DEF PROCapp_init
   48PROCSetUp_Menus
   49PROCSetUpSprite
   50PROCReadModeVars
   51DIM ColTable% 16,Scale% 16
   52scaling%=1:REM scale sprite to window..
   53sicon=FNshell_Iconbar(-1,"!"+FNshell_GetAppName,"",120,MenuHandle_IconBar%,0,0,0)
   54PROCshell_AttachHelpTag(-1,sicon,"iconbar")
   55PROCshell_AttachClickSelect(-1,sicon,"_clickiconbar")
   56PROCshell_AttachMenuMaker(-1,sicon,"_MenuMaker_IconBar")
   57PROCshell_CreateWindowStatic("mainw",mainw%)
   58mainw%=FNshell_WindowSetSpriteArea(mainw%,SpriteBlock%)
   59PROCshell_AttachUserRedraw(mainw%,"_redraw")
   60PROCshell_AttachModeChangeHandler("_ModeChange")
   61PROCshell_InitHelpSystem(FNshell_GetAppDir+".Redraw2",TRUE)
   62ENDPROC
   63:
   64
   65REM ===== Menu_SetUp routines ======================================
   66
   67DEF PROCSetUp_Menus
   68LOCAL void%
   69
   70MenuHandle_IconBar%=FNshell_MenuNew("Redraw2")
   71MenuItem_Info%     =FNshell_MenuAdd(0,"Info","")
   72MenuItem_Help%     =FNshell_MenuAdd(0,"Help","_MenuSelect_Help")
   73MenuItem_Scale%    =FNshell_MenuAdd(0,"Scale plot","_MenuSelect_Scale")
   74void%              =FNshell_MenuAdd(0,"Quit","_MenuSelect_Quit")
   75PROCshell_AttachMenuDBox(MenuItem_Info%,"progInfo","_PreOpenInfo","")
   76
   77ENDPROC
   78:
   79
   80REM ===== Sprite_SetUp routines ====================================
   81
   82DEF PROCSetUpSprite
   83width%=400:height%=400:Ncol%=16
   84width_pix%=width%/2:height_pix%=height%/2:mode%=20
   85DIM SpriteBlock% (width_pix%*height_pix%/2+100)
   86PROCInitialiseSpriteArea(SpriteBlock%,(width_pix%*height_pix%+100))
   87SYS "OS_SpriteOp",15+256,SpriteBlock%,"screen",0,width_pix%,height_pix%,20
   88ENDPROC
   89:
   90DEF PROCInitialiseSpriteArea(S%,length%)
   91!S%=length%
   92S%!8=16
   93SYS "OS_SpriteOp",9+256,S%
   94ENDPROC
   95:
   96DEF FN_ModeChange
   97PROCReadModeVars
   98=0
   99:
  100DEF PROCReadModeVars
  101SYS "OS_ReadModeVariable",-1,4 TO ,,Xpix%:Xpix%=2^Xpix%
  102SYS "OS_ReadModeVariable",-1,5 TO ,,Ypix%:Ypix%=2^Ypix%
  103ENDPROC
  104:
  105
  106REM ===== Dialog_PreOpen routines ==================================
  107
  108DEF FN_PreOpenInfo(h%)
  109PROCshell_IconPutData(h%,0,FNshell_MessageNoArgs("progInfo0"),0)
  110PROCshell_IconPutData(h%,1,FNshell_MessageNoArgs("progInfo1"),0)
  111PROCshell_IconPutData(h%,2,FNshell_MessageNoArgs("progInfo2"),0)
  112PROCshell_IconPutData(h%,3,FNshell_MessageNoArgs("progInfo3"),0)
  113=0
  114:
  115
  116REM ===== Menu_Maker routines ======================================
  117
  118DEF FN_MenuMaker_IconBar(wh%,ih%)
  119PROCshell_MenuTick(MenuItem_Scale%,scaling%)
  120=0
  121:
  122
  123REM ===== Menu_Select routines =====================================
  124
  125DEF FN_MenuSelect_Help(blk%)
  126PROCshell_HelpWord(FNshell_GetAppName+".$")
  127=0
  128:
  129DEF FN_MenuSelect_Scale(blk%)
  130scaling%=scaling% EOR 1
  131REM delete old sprite so that a new pattern starts when 'scale plot'
  132REM is selected..
  133SYS "OS_SpriteOp",25+256,SpriteBlock%,"screen"
  134REM get wimp to remove it from the window..
  135SYS "Wimp_ForceRedraw",mainw%,0,-5000,5000,0
  136REM create new sprite..
  137SYS "OS_SpriteOp",15+256,SpriteBlock%,"screen",0,width_pix%,height_pix%,20
  138=0
  139:
  140DEF FN_MenuSelect_Quit(blk%)
  141_closedown%=TRUE
  142=0
  143:
  144
  145REM ===== Click_Select routines ====================================
  146
  147DEF FN_clickiconbar(wh%,icon%)
  148PROCshell_OpenWindowStatic(mainw%)
  149=0
  150:
  151
  152REM ===== Application routines =====================================
  153
  154DEF PROCshell_DoBackgroundTask
  155PROCdo_pattern
  156PROCupdatewindow(mainw%)
  157ENDPROC
  158:
  159DEF PROCdo_pattern
  160LOCAL v0%,v1%,v2%,v3%,C%
  161SYS "OS_SpriteOp",60+256,SpriteBlock%,"screen" TO v0%,v1%,v2%,v3%
  162VDU 29,0;0;
  163C%=RND(Ncol%)-1
  164GCOL C%
  165REM CIRCLE FILL RND(width%),RND(height%),RND(50)
  166MOVE RND(width%),RND(height%)
  167MOVE RND(width%),RND(height%)
  168PLOT 85,RND(width%),RND(height%)
  169REM switch VDU output back to the screen..
  170SYS "OS_SpriteOp",v0%,v1%,v2%,v3%
  171ENDPROC
  172:
  173DEF PROCdo_pattern2
  174LOCAL v0%,v1%,v2%,v3%,C%
  175LOCAL X1%,X2%,X3%,Y1%,Y2%,Y3%
  176REM switch VDU output to the 'screen' sprite..
  177SYS "OS_SpriteOp",60+256,SpriteBlock%,"screen" TO v0%,v1%,v2%,v3%
  178VDU29,(width%)/2;(height%)/2;
  179IF RND(100)=1 THEN C%=RND(Ncol%)-1:GCOL 0,C%:RECTANGLE FILL -width%/2,-height%/2,width%,height%
  180X1%=RND(width%/2):X2%=RND(width%/2):X3%=RND(width%/2)
  181Y1%=RND(X1%):Y2%=RND(X2%):Y3%=RND(X3%)
  182C%=RND(Ncol%)-1
  183GCOL C%
  184MOVE X1%,Y1%  :DRAW X2%,Y2%  :PLOT 85,X3%,Y3%
  185MOVE -X1%,-Y1%:DRAW -X2%,-Y2%:PLOT 85,-X3%,-Y3%
  186MOVE X1%,-Y1% :DRAW X2%,-Y2% :PLOT 85,X3%,-Y3%
  187MOVE -X1%,Y1% :DRAW -X2%,Y2% :PLOT 85,-X3%,Y3%
  188MOVE Y1%,X1%  :DRAW Y2%,X2%  :PLOT 85,Y3%,X3%
  189MOVE -Y1%,X1% :DRAW -Y2%,X2% :PLOT 85,-Y3%,X3%
  190MOVE -Y1%,-X1%:DRAW -Y2%,-X2%:PLOT 85,-Y3%,-X3%
  191MOVE Y1%,-X1% :DRAW Y2%,-X2%  :PLOT 85,Y3%,-X3%
  192REM switch VDU output back to the screen..
  193SYS "OS_SpriteOp",v0%,v1%,v2%,v3%
  194ENDPROC
  195:
  196DEF PROCupdatewindow(h%)
  197!_Q%=h%
  198SYS "Wimp_GetWindowInfo",,_Q%
  199MinX%  =_Q%!4
  200MinY%  =_Q%!8
  201MaxX%  =_Q%!12
  202MaxY%  =_Q%!16
  203ScrX%  =_Q%!20
  204ScrY%  =_Q%!24
  205_Q%!4  =_Q%!44
  206_Q%!8  =_Q%!48
  207_Q%!12 =_Q%!52
  208_Q%!16 =_Q%!56
  209SYS "Wimp_UpdateWindow",,_Q% TO more%
  210WHILE more%
  211  PROCdrawrectangle(MinX%,MinY%,MaxX%,MaxY%)
  212  SYS "Wimp_GetRectangle",,_Q% TO more%
  213ENDWHILE
  214ENDPROC
  215:
  216DEF PROCdrawrectangle(MinX%,MinY%,MaxX%,MaxY%)
  217Scale%!0 =(MaxX%-MinX%)/Xpix%
  218Scale%!4 =(MaxY%-MinY%)/Ypix%
  219Scale%!8 =width_pix%
  220Scale%!12=height_pix%
  221SYS "Wimp_ReadPixTrans",256,SpriteBlock%,"screen",,,,,ColTable%
  222IF scaling%>0 THEN
  223  SYS "OS_SpriteOp",52+256,SpriteBlock%,"screen",MinX%,MinY%,0,Scale%,ColTable%
  224ELSE
  225  MOVE MinX%-ScrX%,MaxY%-(height%*2)-ScrY%
  226  SYS "OS_SpriteOp",28+256,SpriteBlock%,"screen",,,0
  227ENDIF
  228ENDPROC
  229:
  230DEF FN_redraw(blk%,x0%,y0%)
  231!_Q%=mainw%
  232SYS "Wimp_GetWindowInfo",,_Q%
  233MinX%  =_Q%!4
  234MinY%  =_Q%!8
  235MaxX%  =_Q%!12
  236MaxY%  =_Q%!16
  237ScrX%  =_Q%!20
  238ScrY%  =_Q%!24
  239_Q%!4  =_Q%!44
  240_Q%!8  =_Q%!48
  241_Q%!12 =_Q%!52
  242_Q%!16 =_Q%!56
  243PROCdrawrectangle(MinX%,MinY%,MaxX%,MaxY%)
  244=0
  245:
  246
  247REM ===== End of user application ==================================
  248:
  249
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?�shell_HeapManagerInit("<EvntShellSystem$Path>",freespace%)
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�shell_ResourcesInit

�app_init
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6,�shell_AttachHelpTag(-1,sicon,"iconbar")
76�shell_AttachClickSelect(-1,sicon,"_clickiconbar")
89�shell_AttachMenuMaker(-1,sicon,"_MenuMaker_IconBar")
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IJMenuItem_Scale%    =�shell_MenuAdd(0,"Scale plot","_MenuSelect_Scale")
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{F� ===== Menu_Select routines =====================================
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�� �_MenuSelect_Scale(blk%)
�scaling%=scaling% � 1
�F� delete old sprite so that a new pattern starts when 'scale plot'
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�F� ===== Click_Select routines ====================================
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�ScrX%  =_Q%!20
�ScrY%  =_Q%!24
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�_Q%!8  =_Q%!48
�_Q%!12 =_Q%!52
�_Q%!16 =_Q%!56
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�Scale%!12=height_pix%
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�MinY%  =_Q%!8
�MaxX%  =_Q%!12
�MaxY%  =_Q%!16
�ScrX%  =_Q%!20
�ScrY%  =_Q%!24
�_Q%!4  =_Q%!44
�_Q%!8  =_Q%!48
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�_Q%!16 =_Q%!56
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�:
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�F� ===== End of user application ==================================
�:
�
�
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00001020  70 20 74 6f 20 72 65 6d  6f 76 65 20 69 74 20 66  |p to remove it f|
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00001120  46 f4 20 3d 3d 3d 3d 3d  20 43 6c 69 63 6b 5f 53  |F. ===== Click_S|
00001130  65 6c 65 63 74 20 72 6f  75 74 69 6e 65 73 20 3d  |elect routines =|
00001140  3d 3d 3d 3d 3d 3d 3d 3d  3d 3d 3d 3d 3d 3d 3d 3d  |================|
*
00001160  3d 3d 3d 0d 00 92 04 0d  00 93 1f dd 20 a4 5f 63  |===......... ._c|
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000011e0  3d 3d 3d 3d 3d 3d 3d 3d  3d 3d 3d 3d 3d 3d 3d 3d  |================|
000011f0  3d 3d 3d 3d 3d 3d 3d 3d  3d 3d 3d 3d 3d 3d 0d 00  |==============..|
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00001b70  30 0d 00 f5 05 3a 0d 00  f6 04 0d 00 f7 46 f4 20  |0....:.......F. |
00001b80  3d 3d 3d 3d 3d 20 45 6e  64 20 6f 66 20 75 73 65  |===== End of use|
00001b90  72 20 61 70 70 6c 69 63  61 74 69 6f 6e 20 3d 3d  |r application ==|
00001ba0  3d 3d 3d 3d 3d 3d 3d 3d  3d 3d 3d 3d 3d 3d 3d 3d  |================|
*
00001bc0  0d 00 f8 05 3a 0d 00 f9  04 0d ff                 |....:......|
00001bcb