/*

   v1.29 Visual Gradient

   Marko Seppänen
   marko.seppanen@wwnet.fi

*/


address IMAGEENGINEER

Options results
signal on error			/* Setup a place for errors to go */

if arg()=0 then exit
x=arg(1)
parse var x pic bartype direction gammavalue arguments
arguments=strip(arguments,B)



MARK pic PRIMARY
PROJECT_INFO pic WIDTH
picwidth=result
PROJECT_INFO pic HEIGHT
picheight=result
PROJECT_INFO pic ZOOM
origzoomvalue=result




if bartype="" then do

  if exists("ie:prefs/visualtexturebar.cfg") == "1" then
    do
      call open("temp","ie:prefs/visualtexturebar.cfg","R")
      values=readln("temp")
      parse var values ok bartype direction gammavalue .
      call close("temp")
    end
  else
    do
      bartype=0
      direction=0
      gammavalue=0
    end

  ' FORM "Visual TextureBar" "Use|Cancel"',
  ' CYCLE,"Bartype","Sunshine|Night|LightColor|DarkColor|Psycho",'bartype'',
  ' CYCLE,"Direction","Right|Bottom|Left|Top",'direction'',
  ' INTEGER,"Gammavalue",-100,100,'gammavalue',SLIDER'


  values=result
  parse var values ok bartype direction gammavalue .

  if ok = 0 then exit

  call open("temp","ie:prefs/visualtexturebar.cfg","W")
  res=writeln("temp",values)
  call close("temp")

end




OPEN "ie:alpha/gradient.alpha" COLOUR
grad=result

PROJECT_SET grad ZOOM origzoomvalue

if direction=="0" | upper(direction)=="RIGHT" then degree=180
if direction=="1" | upper(direction)=="BOTTOM" then degree=90
if direction=="2" | upper(direction)=="LEFT" then nodegree=1
if direction=="3" | upper(direction)=="TOP" then degree=270


if nodegree~="1" then do

  ROTATE grad degree FAST
  rotgrad=result
  CLOSE grad

end
else rotgrad=grad


SCALE rotgrad picwidth picheight BEST
grad2=result

CLOSE rotgrad


GAMMA grad2 gammavalue RED GREEN BLUE
gammagrad=result

CLOSE grad2



select

  when bartype == 0 | upper(bartype) == "SUNSHINE" then do

    REFLECT_X gammagrad
    grad3=result

    CLOSE gammagrad

    MARK pic PRIMARY
    MARK pic ALPHA
    MARK grad3 SECONDARY

    COMPOSITE 0 0 ADD
    final=result

    CLOSE grad3

  end


  when bartype == 1 | upper(bartype) == "NIGHT" then do

    MARK pic PRIMARY
    MARK pic ALPHA
    MARK gammagrad SECONDARY

    COMPOSITE 0 0 MULTIPLY
    final=result

    CLOSE gammagrad

  end


  when bartype == 2 | upper(bartype) == "LIGHTCOLOR" then do

    if exists("ie:arexx/primarycolors.rexx") == "0" then do
      'REQUEST "Please install latest version of Image Engineer!" "OK"'
      exit
    end

    parse var arguments pcolor

    if upper(pcolor) == "PCOLOR" then pcolor=""
    address command "Sys:Rexxc/rx ie:arexx/PrimaryColors.rexx" gammagrad pcolor

    PROJECT_LIST
    xyz=result
    colorgrad=subword(xyz,1,1)

    CLOSE gammagrad


    MARK pic PRIMARY
    MARK pic ALPHA
    MARK colorgrad SECONDARY

    COMPOSITE 0 0 MAX
    final=result

    CLOSE colorgrad

  end


  when bartype == 3 | upper(bartype) == "DARKCOLOR" then do

    if exists("ie:arexx/primarycolors.rexx") == "0" then do
      'REQUEST "Please install latest version of Image Engineer!" "OK"'
      exit
    end

    parse var arguments pcolor

    if upper(pcolor) == "PCOLOR" then pcolor=""
    address command "Sys:Rexxc/rx ie:arexx/PrimaryColors.rexx" gammagrad pcolor

    PROJECT_LIST
    xyz=result
    colorgrad=subword(xyz,1,1)

    CLOSE gammagrad


    MARK pic PRIMARY
    MARK pic ALPHA
    MARK colorgrad SECONDARY

    COMPOSITE 0 0 MULTIPLY
    final=result

    CLOSE colorgrad

  end


  when bartype == 4 | upper(bartype) == "PSYCHO" then do

    if exists("ie:arexx/primarycolors.rexx") == "0" then do
      'REQUEST "Please install latest version of Image Engineer!" "OK"'
      exit
    end

    parse var arguments pcolor

    if upper(pcolor) == "PCOLOR" then pcolor=""
    address command "Sys:Rexxc/rx ie:arexx/PrimaryColors.rexx" gammagrad pcolor

    PROJECT_LIST
    xyz=result
    colorgrad=subword(xyz,1,1)

    CLOSE gammagrad


    MARK pic PRIMARY
    MARK pic ALPHA
    MARK colorgrad SECONDARY

    COMPOSITE 0 0 DIFFERENCE
    final=result

    CLOSE colorgrad

  end




otherwise exit

end


exit

/*******************************************************************/
/* This is where control goes when an error code is returned by IE */
/* It puts up a message saying what happened and on which line     */
/*******************************************************************/
error:
if RC=5 then do			/* Did the user just cancel us? */
	IE_TO_FRONT
	LAST_ERROR
	'REQUEST "'||RESULT||'"'
	exit
end
else do
	IE_TO_FRONT
	LAST_ERROR
	'REQUEST "Error detected!!!'||D2C(10)||'Image Engineer error message is as follows'||D2C(10)||result||D2C(10)||'Script failed on line '||SIGL||'"' 'Doh!'
	exit
end