DP Tool Club 24/CD_ASCQ_24_0995.iso/dos/tools/aurora21/clrchart.aml

Text File | 1995-08-10 | 7KB | 269 lines

/* ------------------------------------------------------------------ */
/* Macro:        CLRCHART.AML                                         */
/* Written by:   nuText Systems                                       */
/*                                                                    */
/* Description:  This macro displays a color chart with color         */
/*               attribute codes in decimal and hexidecimal. It is    */
/*               used by CFGCOLOR.X, but also be used independently.  */
/*                                                                    */
/* Usage:        To enter a color string (e.g. 'red on blue') at      */
/*               the cursor position in your text:                    */
/*                 1. run this macro                                  */
/*                 2. position the cursor to the desired color        */
/*                 3. press <enter>                                   */
/* ------------------------------------------------------------------ */

  include bootpath "define.aml"

  define
    set display_str    '  '
  end

  var basecolor
  var foreground
  var background
  var lforeground
  var lbackground
  var xbackground
  var retvalue
  var colorstring

  xposition    = arg 2
  yposition    = arg 3
  initialattr  = arg 4
  notifyobject = arg 5

  if initialattr then
    foreground = initialattr & 0fh
    background = (initialattr & 0f0h) shr 4
    if background > 7 then
      background = background - 8
      basecolor  = 128
    end
  end


  // keep this code resident
  stayresident
  inheritfrom "win"

  // create the color chart window
  createwindow
  setframe ">b"
  setcolor  border_color         color gray  on black
  setcolor  text_color           color black on black
  setcolor  border_flash_color   color brightgreen on black
  settitle "Color Chart"
  setwinctrl (if? basecolor "≡" "≡") 2

  if xposition then
    sizewindow xposition yposition xposition + 23 yposition + 17
               "a1" '' (getprevwin)
  else
    // center the window
    width = 24
    height = 18
    ox = (getvidcols - width) / 2
    oy = (getvidrows - height) / 2
    sizewindow ox oy ox + width - 1 oy + height - 1 "ad"
  end
  setborder "1f"

  // draw the color chart
  function drawchart
    var b
    var f
    gotoxy 1 1
    while f < 16 do
      while b < 8 do
        writestr display_str  (b * 16 + f) + basecolor
        b = b + 1
      end
      writeline
      b = 0
      f = f + 1
    end
    gotoxy 19 17
    writestr "  O" (color black on green)
    writestr "k  " (color red   on green)
  end

  drawchart

  // return the color name for a color attribute
  function attrname (attr)
    case attr
      when  0 "black"       when  8 "darkgray"
      when  1 "blue"        when  9 "brightblue"
      when  2 "green"       when 10 "brightgreen"
      when  3 "cyan"        when 11 "brightcyan"
      when  4 "red"         when 12 "brightred"
      when  5 "magenta"     when 13 "pink"
      when  6 "brown"       when 14 "yellow"
      when  7 "gray"        when 15 "white"
    end
  end

  function draw

    // clear the old bracket cursor
    if xbackground then
      writestr display_str lforeground + (lbackground * 16) + basecolor   xbackground - 1
    end

    attr = foreground + (background * 16) + basecolor
    //attr = getattr
    colorstring = (attrname foreground) + ' on ' + (attrname background + (if? basecolor 8))

    // write color info at the bottom of the chart
    writestr (pad '[dec=' + attr + ',hex=' + (base attr 16) + ']' 16 'l')
             (color gray on black) 1 17
    writestr  (pad colorstring 24 'l') (color gray on black) 1 18

    // move the cursor to the appropriate color cell
    xbackground = background * 3 + 2
    gotoxy xbackground foreground + 1

    // write the bracket [ ] cursor
    attr = (if? background + (if? basecolor 8) > brightblue black white) + (background * 16) + basecolor
    writestr '[' attr  xbackground - 1
    writestr ']' attr  xbackground + 1
    gotoxy xbackground foreground + 1

    lforeground = foreground
    lbackground = background

    sendobject notifyobject "oncolor" (getattr)
  end

  draw
  showcursor 50 99

  // local close function for this window
  function close (value)
    // call 'close' in object 'win'
    pass
    destroyobject
    endprocess
    retvalue = if? (arg) value -1
  end

  // toggle background base color
  function togglebase
    if basecolor then
      basecolor = 0
      setwinctrl '≡' 2
    else
      basecolor = 128
      setwinctrl '≡' 2
    end
    xbackground = 0
    drawchart
    draw
  end

  function "≡"
    close
  end

  // exit the chart
  key <esc>
    close
  end

  // exit the chart when switching windows
  function  onkillfocus
    close
  end

  // enter the color description in an edit window and exit
  key <enter>
    queue "write" colorstring
    close (getattr)
  end

  function <lbutton> (m)
    pass
    case getregion
      // client area
      when 1
        if virtorow <= 16 then
          foreground = (virtorow - 1) mod 16
        else
          // Ok button
          if not m and virtorow == 17 and virtocol >= 19 then
            call <enter>
          end
          return
        end
        background = (virtocol - 1) / 3
        draw
      when 52
        togglebase
    end
  end

  function <move>
    pass
    if (button? 1) and getregion == 1 then
      send <lbutton> 1
    end
  end

  function <ldouble>
    call <enter>
  end

  // check for 'Ok' hotkey
  function <char> (c)
    if icompare c 'k' then
      call <enter>
    else
      pass
    end
  end

  // move the cursor around in the chart
  key <left>
    if not background then
      togglebase
    end
    background = if? background (background - 1) 7
    draw
  end

  key <right>
    if background == 7 then
      togglebase
    end
    background = (background + 1) mod 8
    draw
  end

  key <up>
    foreground = if? foreground (foreground - 1) 15
    draw
  end

  key <down>
    foreground = (foreground + 1) mod 16
    draw
  end

  // toggle background base color
  key <tab>
    togglebase
  end

  // toggle background base color
  key <shift tab>
    togglebase
  end

  // invoke the editor recursively
  // wait for endprocess to return here
  process

  // return the ascii value
  return retvalue