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import os
import sys
import random
import re
import urllib
from Config import *
from Pb import Pb
import simplejson as json
from PIL import Image
import uuid
_fuse_mode="Pin_Light"
class PbPattern(Pb):
example_params = {
# "pattern_url" : "http://asdf.us/impattern/patterns/1.png",
"pattern_data" : '{"matrix":[["0","0","0","0","0","1","0","0","0","0"],["0","0","0","0","1","1","1","0","0","0"],["0","0","1","1","1","0","1","0","0","0"],["0","1","1","0","0","0","0","0","0","0"],["0","1","0","0","1","0","0","0","0","0"],["0","1","0","0","1","0","0","0","1","0"],["0","1","0","0","1","1","0","0","1","0"],["0","1","0","0","0","1","1","1","1","0"],["0","1","1","1","1","0","0","0","0","0"],["0","0","0","0","1","0","0","0","0","0"]],"width":"10","height":"10"}',
# "username" : "garfield",
"image_url" : "http://i.asdf.us/im/be/PinkHijab_1425078647_reye.gif",
}
def __init__(self, **kwargs):
super(PbPattern,self).__init__();
_definitions = {
'image_url': { 'type':'img_url' },
'pattern_url': { 'type':'img_url' },
'pattern_data': { 'type':'raw' },
'username': { 'type':'string' },
}
self.params.definitions_import(_definitions, kwargs, classname=self.__class__.__name__);
self.filename, self.filepath = self._filename_filepath_create(url=self.params.image_url['url'], extension=self.params.image_url['mimetype'])
_pattern_filename, self._pattern_filepath = self._filename_filepath_create(namepart="pattern")
if self.params.pattern_data: self._from_pattern_data()
elif not self.params.pattern_url:
self.err_warn("pattern must be supplied as json array or as a png url")
def _from_pattern_data(self):
def boolToColor(boolean):
if boolean:
return (0,0,0,255);
else:
return (255,255,255,255)
specs = json.loads(str(self.params.pattern_data));
if int(specs['width']) > 100 or int(specs['height']) > 100:
raise ValueError
sys.stderr.write("height and width need to be less than 100 px")
img = Image.new('RGBA', (int(specs['width']), int(specs['height'])));
pixels = img.load();
for i in range(0, len(specs['matrix'])):
for j in range(0, len(specs['matrix'][i])):
pixels[j,i] = boolToColor(int(specs['matrix'][i][j]));
img.save(self._pattern_filepath, "PNG")
#first step
def _make_canvas(self):
_width, _height = self.dimensions(self.params.image_url['path']) # same here
cmd = [BIN_CONVERT, "-size", _width + "x" + _height, "canvas:transparent", self.filepath]
self._call_cmd(cmd)
#second step use the Canvas as a background
def _make_mask(self):
#tile the pattern pattern on the canvas
cmd = [BIN_COMPOSITE,"-tile", self._pattern_filepath, self.filepath, self.filepath];
self._call_cmd(cmd)
#fuse the tiled file to create a mask
#convert thebg.gif -compose Dst_In null: thefile.gif -matte -layers composite new.gif
cmd = [BIN_CONVERT, self.filepath, "-compose", "Dst_In", "null:",
self.params.image_url['path'], "-matte", "-layers", "composite", self.filepath]
self._call_cmd(cmd)
#third step
def _fuse_mask(self, fuse_mode=_fuse_mode):
cmd = [BIN_CONVERT, "-dispose", "2", self.filepath, "null:",
self.params.image_url['path'], "-matte", "-compose", fuse_mode, "-layers", "composite",
self.filepath]
self._call_cmd(cmd)
def create(self):
self._make_canvas();
self._make_mask()
self._fuse_mask();
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