#!/usr/bin/env python
# Version 0.3
# GIMP plugin to export layers as Sprite for 2D games
# 0.2: added automatic reverse of image layers
# 0.3: added spacing between frames of the spritesheet

from gimpfu import *
import os

gettext.install("gimp20-python", gimp.locale_directory, unicode=True)

def python_sprite_detape(timg, tdrawable, invert_order, spacing, cnt_hor=8, cnt_vert=8):
     width = timg.width
     height = timg.height

     newwidth = (width - spacing * (cnt_hor + 1)) / cnt_hor
     newheight = (height - spacing * (cnt_vert + 1)) / cnt_vert

     frames = cnt_hor * cnt_vert
     for i in range(frames - 1):
       timg.add_layer(timg.layers[0].copy(0), i)

     for y in range(cnt_vert):
       for x in range(cnt_hor):
	 layer_numb = x + (y * cnt_hor)
	 if layer_numb >= len(timg.layers):
	   break
	 newx = x * newwidth + spacing * (x + 1)
	 newy = y * newheight + spacing * (y + 1)
	 timg.layers[layer_numb].set_offsets(-newx, -newy)

     timg.resize(newwidth, newheight, 0, 0)

     for y in range(cnt_vert):
       for x in range(cnt_hor):
	 layer_numb = x + (y * cnt_hor)
	 timg.layers[layer_numb].resize_to_image_size()

     if invert_order:
         pdb.script_fu_reverse_layers(timg, tdrawable)

register(
    proc_name=("python_fu_sprite_detape"),
    blurb=("Make a tape of sprites into layers"),
    help=("Make a tape of sprites into layers"),
    author=("FedeX"),
    copyright=("Pheodor Tsapanas a.k.a. FedeX"),
    date=("2011"),
    label=("de-tape"),
    imagetypes=("*"),
    params=[
	(PF_IMAGE, "timg", "Image", None),
	(PF_DRAWABLE, "tdrawable", "Drawable", None),
        (PF_BOOL, "invert_order", "Invert order", False ),
        (PF_INT, "spacing", "Spacing", 0 ),
        (PF_INT, "cnt_hor", "Sprites hor.",8 ),
        (PF_INT, "cnt_vert", "Sprites vert.", 8)
	   ],
    results=[],
    function=(python_sprite_detape),
    menu=("<Image>/Image/Sprite"),
    domain=("gimp20-python", gimp.locale_directory)
    )

main()