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#!/usr/bin/python2.7
import os
import sys
import random
import re
import urllib
import inspect
from Config import *
from Pb import Pb
from Params import Params
DEFAULT_FINALFORMAT = "png";
_subtle_break_mark = 'pron'
_extreme_break_mark = 'sugar'
_header_offset = 2000
_default_breakmode = "subtle"
class PbBreak(Pb): #FIXME in db gallery
example_params = {
"url" : "http://i.asdf.us/im/de/HolyMountain2_1322275112_seamonkey.gif",
"breaktype" : "RGB_WASH",
"finalformat" : "png",
"breakmode" : "extreme",
"breakangle" : "10",
"username" : "donkey",
"expanded" : "false"
}
def __init__(self, **kwargs):
super(PbBreak,self).__init__(**kwargs);
_definitions = {
'username': { 'type': 'string' },
'breaktype': { 'type': 'string' },
'breakmode': {
'type': 'enum',
'enum_values' : ['subtle', 'extreme', 'gradual'] ,
'default' : _default_breakmode
},
'breakangle': { 'type': 'float' },
'expanded': { 'type': 'bool' },
'url': { 'type': 'img_url' },
'finalformat': { 'type': 'enum', 'enum_values' : ['png', 'gif', 'jpg' ] }
}
self.params.definitions_import(_definitions, kwargs, classname=self.__class__.__name__);
self._files_created.append(self.params.url.path)
self.params.breaktype.set_val(self._get_breaktype(str(self.params.breaktype)))
#psd returns an animation
if not self.params.finalformat and self.params.url.mimetype == "gif":
self.params.finalformat.set_val("gif")
elif self.params.breaktype == 'miff':
self.params.finalformat.set_val("jpg")
self.params.breakmode.set_val("subtle")
elif not self.params.finalformat:
self.params.finalformat.set_val(DEFAULT_FINALFORMAT)
self._width_and_height_set(filepath=self.params.url.path)
self.filename, self.filepath = self._filename_filepath_create(url=self.params.url.url, extension=self.params.finalformat)
self._conversion_file = self._tempfilepath_create(namepart="conversion", extension=self.params.breaktype)
self._db_url_param = str(self.params.url['url'])
def _get_breaktype(self, key):
#{{{ conversion table
breaktypeTranslate = {
'CLASSIC':'jpg',
'REDUX':'pcds',
'BLURRY_BREAK':'viff',
'BLURRY_BREAK_2':'mat',
'SWIPE':'miff',
'RGB_WASH':'psd',
'RGB_WASH_2':'psb',
'NOISY_BREAK':'palm',
'NOISY_BREAK_2':'fig',
'BROKEN_VIGNETTE':'pbm',
'FAX_MACHINE':'cals',
'STRIPES':'exr',
'PHOTOCOPY':'art',
}
#}}}
return breaktypeTranslate[key]
#{{{#########rotatefunctions#######################################
def _rotate(self):
cmd = [BIN_CONVERT,self.params.url.path,"-rotate",self.params.breakangle,"+repage",self.params.url.path]
self._call_cmd(cmd)
def _rotate_back(self):
angle = str(360-int(self.params.breakangle))
cmd = [BIN_CONVERT,self.filepath,"-rotate",angle,"+repage",self.filepath]
self._call_cmd(cmd)
if not self.params.expanded:
cmd = [BIN_CONVERT,self.filepath,"-gravity","Center","-crop","{}x{}+0+0".format(
self.width, self.height),"+repage",self.filepath]
self._call_cmd(cmd)
#}}}
def _subtle_break(self):
#assume the header is no longer than _header_offset bytes
breakpoint = random.randint(_header_offset, len(self._file_data))
newfile = self._file_data[0:breakpoint] \
+ _subtle_break_mark \
+ self._file_data[breakpoint:]
self._file_data = newfile[0:len(self._file_data)]
def _extreme_break(self):
increment = len(self._file_data)/10;
i = 0
newfile = "";
for b in self._file_data:
if i > _header_offset and not (i % increment):
b += _extreme_break_mark
newfile += b
i += 1
self._file_data = newfile[0:len(self._file_data)]
def _enforce_jpg(self):
if self.params.breaktype in [ "exr", "bmp", "miff" ] and not re.match(r'jpe?g$', self.params.url.mimetype, re.IGNORECASE):
jpg_file = self._tempfilepath_create(extension="jpg")
self._call_cmd([BIN_CONVERT,self.params.url.path, jpg_file])
self._files_created.append(jpg_file)
self._conversion_file = jpg_file
def _first_conversion(self):
if self.params.url.mimetype == self.params.breaktype:
self._conversion_file = self.params.url.path
return
self._call_cmd([BIN_CONVERT, self.params.url.path, self._conversion_file])
self._files_created.append(self._conversion_file)
def _prepare_filedata(self):
if self.params.url.mimetype == "gif" and self.params.breaktype not in [ 'mat', 'psd' ]:
self._choose_gif_frame(self.params.url.path)
if self.params.breakangle:
self._rotate()
self._enforce_jpg();
self._first_conversion();
self._file_data = self._file_read(self._conversion_file)
if not self._file_data:
self.err_warn("Unable to get file data");
def _add_false_data(self):
if self.params.breakmode == "subtle":
self._subtle_break()
elif self.params.breakmode == "extreme":
self._extreme_break()
f = open(self._conversion_file, 'w')
f.write(self._file_data)
f.close();
def _final_conversion(self):
self._call_cmd( [BIN_CONVERT, self._conversion_file, self.filepath])
def psd_psbfilepath(num):
return os.path.join(re.sub(r'\.', "-%s." % num, self.filepath))
if str(self.params.breaktype) == 'psd':
self._call_cmd(['mv', psd_psbfilepath(1), self.filepath])
self._files_created.append(psd_psbfilepath(0))
if str(self.params.breaktype) == 'psb':
self._call_cmd(['mv', psd_psbfilepath(0), self.filepath])
self._files_created.append(psd_psbfilepath(1))
if self.params.breakangle:
self._rotate_back()
def create(self):
self._prepare_filedata();
self._add_false_data();
self._final_conversion()
self._cleanup()
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