#!/usr/bin/env python

# TraceOverSet 1.0, a Python-fu Gimp plugin.
# Michael B. Stevens, 
# July 2013, released under Gnu Public License
# Place in your .gimp-2.8 folder's plug-ins folder.  Make executable.
# Tested in Gimp 2.8.
# Will appear in the GIMP menus at <Image>Layer/TraceOverSet.
# This is free and open source G.P.L. software.  Use at your own risk.

from gimpfu import *
import cPickle

#import random

def make_layers(timg, tdrawable,
                        coltup, 
                        opacity):

    # Make a new simi-opaque layer.
    lr = pdb.gimp_layer_new_from_drawable(tdrawable, timg)
    pdb.gimp_image_insert_layer(timg, lr, None, -1)
    pdb.plug_in_exchange (timg, lr,
                          0,0,0,
                          coltup[0],coltup[1], coltup[2],
                          255,255,255)
    pdb.gimp_layer_set_mode(lr, NORMAL_MODE)
    pdb.gimp_layer_set_opacity(lr, 65.0)
    
    
    # Make a second new layer for user to draw on.
    pdb.gimp_context_set_foreground((0, 0, 0))
    pdb.gimp_context_set_background((255, 255, 255))
    lr2 = pdb.gimp_layer_new(timg, tdrawable.width,
        tdrawable.height, RGB_IMAGE, "drawing", 100,
        MULTIPLY_MODE)
    pdb.gimp_drawable_fill(lr2, BACKGROUND_FILL)
    pdb.gimp_image_insert_layer(timg, lr2, None, -1)
    return


register(
    "TraceOverSet",
    "Add simi-transparent layers for tracing over rougher drawings",
    "Appears in <Image>/Links menu.  Choose color, opacity and go.",
    "Michael B. Stevens",
    "Programmed  by Michael B. Stevens, ",
    "Released under Gnu Public License July 2013",
    "<Image>/Layer/TraceOverSet",
    "*",
    [
     (PF_COLOR, "coltup", "Color", (80,80,80)),
     (PF_SLIDER, "opacity", "New Layer Opacity", 50, (0,100,1))
    ],
    [],
    make_layers
    )


main()