PyBitmessage-2021-04-27/src/qidenticon.py
sendiulo 240e9b5b58 Updated to work with QPixmap instead of PIL!
The original source is licensed under a BSD-License, so it should be fine to use.
2013-09-16 21:08:55 +02:00

319 lines
11 KiB
Python

#!/usr/bin/env python
# -*- coding:utf-8 -*-
###
# qidenticon.py is Licesensed under FreeBSD License.
# (http://www.freebsd.org/copyright/freebsd-license.html)
#
# Copyright 2013 "Sendiulo". All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
###
###
# identicon.py is Licesensed under FreeBSD License.
# (http://www.freebsd.org/copyright/freebsd-license.html)
#
# Copyright 1994-2009 Shin Adachi. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
###
"""
qidenticon.py
identicon python implementation with QPixmap output
by sendiulo <sendiulo@gmx.net>
based on
identicon.py
identicon python implementation.
by Shin Adachi <shn@glucose.jp>
= usage =
== commandline ==
>>> python identicon.py [code]
== python ==
>>> import qtidenticon
>>> qtidenticon.render_identicon(code, size)
Return a PIL Image class instance which have generated identicon image.
```size``` specifies `patch size`. Generated image size is 3 * ```size```.
"""
# we probably don't need all of them, but i don't want to check now
from PyQt4 import QtCore, QtGui
from PyQt4.QtCore import *
from PyQt4.QtGui import *
__all__ = ['render_identicon', 'IdenticonRendererBase']
class Matrix2D(list):
"""Matrix for Patch rotation"""
def __init__(self, initial=[0.] * 9):
assert isinstance(initial, list) and len(initial) == 9
list.__init__(self, initial)
def clear(self):
for i in xrange(9):
self[i] = 0.
def set_identity(self):
self.clear()
for i in xrange(3):
self[i] = 1.
def __str__(self):
return '[%s]' % ', '.join('%3.2f' % v for v in self)
def __mul__(self, other):
r = []
if isinstance(other, Matrix2D):
for y in xrange(3):
for x in xrange(3):
v = 0.0
for i in xrange(3):
v += (self[i * 3 + x] * other[y * 3 + i])
r.append(v)
else:
raise NotImplementedError
return Matrix2D(r)
def for_PIL(self):
return self[0:6]
@classmethod
def translate(kls, x, y):
return kls([1.0, 0.0, float(x),
0.0, 1.0, float(y),
0.0, 0.0, 1.0])
@classmethod
def scale(kls, x, y):
return kls([float(x), 0.0, 0.0,
0.0, float(y), 0.0,
0.0, 0.0, 1.0])
"""
# need `import math`
@classmethod
def rotate(kls, theta, pivot=None):
c = math.cos(theta)
s = math.sin(theta)
matR = kls([c, -s, 0., s, c, 0., 0., 0., 1.])
if not pivot:
return matR
return kls.translate(-pivot[0], -pivot[1]) * matR *
kls.translate(*pivot)
"""
@classmethod
def rotateSquare(kls, theta, pivot=None):
theta = theta % 4
c = [1., 0., -1., 0.][theta]
s = [0., 1., 0., -1.][theta]
matR = kls([c, -s, 0., s, c, 0., 0., 0., 1.])
if not pivot:
return matR
return kls.translate(-pivot[0], -pivot[1]) * matR * \
kls.translate(*pivot)
class IdenticonRendererBase(object):
PATH_SET = []
def __init__(self, code):
"""
@param code code for icon
"""
if not isinstance(code, int):
code = int(code)
self.code = code
def render(self, size):
"""
render identicon to QPixmap
@param size identicon patchsize. (image size is 3 * [size])
@return QPixmap
"""
# decode the code
middle, corner, side, foreColor, backColor = self.decode(self.code)
# make image
image = QPixmap(QSize(size * 3, size * 3))
# fill background
image.fill(QtGui.QColor(0,0,0))
kwds = {
'image': image,
'size': size,
'foreColor': foreColor,
'backColor': backColor}
# middle patch
image = self.drawPatchQt((1, 1), middle[2], middle[1], middle[0], **kwds)
# side patch
kwds['type'] = side[0]
for i in xrange(4):
pos = [(1, 0), (2, 1), (1, 2), (0, 1)][i]
image = self.drawPatchQt(pos, side[2] + 1 + i, side[1], **kwds)
# corner patch
kwds['type'] = corner[0]
for i in xrange(4):
pos = [(0, 0), (2, 0), (2, 2), (0, 2)][i]
image = self.drawPatchQt(pos, corner[2] + 1 + i, corner[1], **kwds)
return image
def drawPatchQt(self, pos, turn, invert, type, image, size, foreColor,
backColor):
"""
@param size patch size
"""
path = self.PATH_SET[type]
if not path:
# blank patch
invert = not invert
path = [(0., 0.), (1., 0.), (1., 1.), (0., 1.), (0., 0.)]
polygon = QPolygonF([QPointF(x*size,y*size) for x,y in path])
rot = turn % 4
rot_trans = [QPointF(0.,0.), QPointF(size, 0.), QPointF(size, size), QPointF(0., size)]
rotation = [0,90,180,270]
# print rotation[rot], rot_trans[rot], turn
pen_color = QtGui.QColor(255, 255, 255, 0)
pen = QtGui.QPen(pen_color, Qt.SolidPattern)
foreBrush = QtGui.QBrush(foreColor, Qt.SolidPattern)
backBrush = QtGui.QBrush(backColor, Qt.SolidPattern)
if invert:
foreBrush, backBrush = backBrush, foreBrush
painter = QPainter()
painter.begin(image)
painter.setPen(pen)
painter.translate(pos[0]*size, pos[1]*size)
painter.translate(rot_trans[rot])
painter.rotate(rotation[rot])
painter.setBrush(backBrush)
painter.drawRect(0,0, size, size)
painter.setBrush(foreBrush)
painter.drawPolygon(polygon, Qt.WindingFill)
painter.end()
return image
### virtual functions
def decode(self, code):
raise NotImplementedError
class DonRenderer(IdenticonRendererBase):
"""
Don Park's implementation of identicon
see : http://www.docuverse.com/blog/donpark/2007/01/19/identicon-updated-and-source-released
"""
PATH_SET = [
[(0, 0), (4, 0), (4, 4), (0, 4)], # 0
[(0, 0), (4, 0), (0, 4)],
[(2, 0), (4, 4), (0, 4)],
[(0, 0), (2, 0), (2, 4), (0, 4)],
[(2, 0), (4, 2), (2, 4), (0, 2)], # 4
[(0, 0), (4, 2), (4, 4), (2, 4)],
[(2, 0), (4, 4), (2, 4), (3, 2), (1, 2), (2, 4), (0, 4)],
[(0, 0), (4, 2), (2, 4)],
[(1, 1), (3, 1), (3, 3), (1, 3)], # 8
[(2, 0), (4, 0), (0, 4), (0, 2), (2, 2)],
[(0, 0), (2, 0), (2, 2), (0, 2)],
[(0, 2), (4, 2), (2, 4)],
[(2, 2), (4, 4), (0, 4)],
[(2, 0), (2, 2), (0, 2)],
[(0, 0), (2, 0), (0, 2)],
[]] # 15
MIDDLE_PATCH_SET = [0, 4, 8, 15]
# modify path set
for idx in xrange(len(PATH_SET)):
if PATH_SET[idx]:
p = map(lambda vec: (vec[0] / 4.0, vec[1] / 4.0), PATH_SET[idx])
PATH_SET[idx] = p + p[:1]
def decode(self, code):
# decode the code
middleType = self.MIDDLE_PATCH_SET[code & 0x03]
middleInvert= (code >> 2) & 0x01
cornerType = (code >> 3) & 0x0F
cornerInvert= (code >> 7) & 0x01
cornerTurn = (code >> 8) & 0x03
sideType = (code >> 10) & 0x0F
sideInvert = (code >> 14) & 0x01
sideTurn = (code >> 15) & 0x03
# bug reported by Masato Hagiwara
# http://lilyx.net/iconlang-en/
# blue = (code >> 16) & 0x1F
# green = (code >> 21) & 0x1F
blue = (code >> 17) & 0x1F
green = (code >> 22) & 0x1F
red = (code >> 27) & 0x1F
foreColor = (red << 3, green << 3, blue << 3)
foreColor = QtGui.QColor(*foreColor)
bgcolor = QtGui.QColor(255,255,255)
return (middleType, middleInvert, 0),\
(cornerType, cornerInvert, cornerTurn),\
(sideType, sideInvert, sideTurn),\
foreColor, bgcolor
def render_identicon(code, size, renderer=None):
if not renderer:
renderer = DonRenderer
return renderer(code).render(size)
if __name__ == '__main__':
import sys
if len(sys.argv) < 2:
print 'usage: python identicon.py [CODE]....'
raise SystemExit
for code in sys.argv[1:]:
if code.startswith('0x') or code.startswith('0X'):
code = int(code[2:], 16)
elif code.startswith('0'):
code = int(code[1:], 8)
else:
code = int(code)
app = Qt.QApplication(sys.argv)
icon = render_identicon(code, 24)
icon.save('%08x.png' % code, 'PNG')