Cream of the Crop 21/Cream of the Crop 21 (Terry Blount) (October 1996).iso/editor/auror300.zip/CLRCHART.AML

Text File | 1996-07-17 | 6KB | 274 lines

//--------------------------------------------------------------------
// CLRCHART.AML
// Color Chart, (C) 1993-1996 by nuText Systems
//
// (See Clrchart.dox for user help)
//
// This macro displays a color chart with color attribute codes in
// decimal and hexidecimal.
//
// If Clrchart is run from within an edit window and a color is
// selected, then the color description (i.e. 'cyan on black') is
// entered into the edit window text at the cursor.
//
// Usage:
//
// Select this macro from the Macro List (on the Macro menu), or run it
// from the macro picklist <shift f12>.
//
// When called as a utility from other macros, the following parameters
// can be passed:
//
//   arg 3: Initial x-position on the screen, relative to 0,0
//   arg 4: Initial y-position on the screen, relative to 0,0
//   arg 5: Initial attibute to be selected
//   arg 6: Object to send the 'oncolor' event to, when the color
//          changes. When 'oncolor' is called, the new color attribute
//          is passed as the first parameter.
//
// Clrchart is called as a utility from the Cfgcolor and Hilitewd
// macros.
//--------------------------------------------------------------------

include bootpath "define.aml"

constant display_str  = '  '

// define an array of color attribute names
attrname = { "black"     "blue"        "green"        "cyan"
             "red"       "magenta"     "brown"        "gray"
             "darkgray"  "brightblue"  "brightgreen"  "brightcyan"
             "brightred" "pink"        "yellow"       "white" }

variable basecolor, foreground, background, lforeground, lbackground,
         xbackground, retvalue, colorstring

xposition    = arg 3
yposition    = arg 4
initialattr  = arg 5
notifyobject = arg 6

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

// inherit window handling from 'win' object
settype "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
private function drawchart
  variable b, f
  gotoxy 1 1
  for f = 0 to 15 do
    for b = 0 to 7 do
      writestr display_str  (b * 16 + f) + basecolor
    end
    writeline
  end
  gotoxy 19 17
  writestr "  O" (color black on green)
  writestr "k  " (color red   on green)
end

drawchart


private 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
  colorstring = attrname [foreground + 1] + ' on ' + attrname [background + 1 + (if? basecolor 8)]

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

  // notify the caller of this macro
  sendobject notifyobject "oncolor" (getattr)
end

draw
showcursor 50 99

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


// local close function for this window
function close (value)
  // call 'close' in object 'win'
  pass
  retvalue = if? (arg) value -1
  endprocess
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>
  if not notifyobject then
    queue "write" colorstring
  end
  close (getattr)
end

// macro help
macrofile = arg 1
key <f1>
  helpmacro macrofile
end

event <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

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

event <ldouble>
  call <enter>
end

// check for 'Ok' hotkey
key <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