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Fixed: Style and lint issues in src/qidenticon.py

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coffeedogs 2018-05-16 12:31:06 +01:00
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@ -19,3 +19,31 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE. SOFTWARE.
===== qidenticon.py identicon python implementation with QPixmap output by sendiulo <sendiulo@gmx.net>
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.
===== based on identicon.py identicon python implementation. by Shin Adachi <shn@glucose.jp>
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.

219
src/qidenticon.py
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@ -1,44 +1,7 @@
#!/usr/bin/env python #!/usr/bin/env python
# -*- coding:utf-8 -*- # -*- coding:utf-8 -*-
# pylint: disable=too-many-locals,too-many-arguments,too-many-function-args
###
# 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 = = usage =
== python == == python ==
@ -49,16 +12,18 @@ Return a PIL Image class instance which have generated identicon image.
```size``` specifies `patch size`. Generated image size is 3 * ```size```. ```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 QtGui
from PyQt4 import QtCore, QtGui from PyQt4.QtCore import QSize, QPointF, Qt
from PyQt4.QtCore import * from PyQt4.QtGui import QPixmap, QPainter, QPolygonF
from PyQt4.QtGui import *
__all__ = ['render_identicon', 'IdenticonRendererBase'] __all__ = ['render_identicon', 'IdenticonRendererBase']
class IdenticonRendererBase(object): class IdenticonRendererBase(object):
"""Encapsulate methods around rendering identicons"""
PATH_SET = [] PATH_SET = []
def __init__(self, code): def __init__(self, code):
""" """
@param code code for icon @param code code for icon
@ -66,85 +31,83 @@ class IdenticonRendererBase(object):
if not isinstance(code, int): if not isinstance(code, int):
code = int(code) code = int(code)
self.code = code self.code = code
def render(self, size, twoColor, opacity, penwidth): def render(self, size, twoColor, opacity, penwidth):
""" """
render identicon to QPicture render identicon to QPicture
@param size identicon patchsize. (image size is 3 * [size]) @param size identicon patchsize. (image size is 3 * [size])
@return QPicture @return QPicture
""" """
# decode the code # decode the code
middle, corner, side, foreColor, secondColor, swap_cross = self.decode(self.code, twoColor) middle, corner, side, foreColor, secondColor, swap_cross = self.decode(self.code, twoColor)
# make image # make image
image = QPixmap(QSize(size * 3 +penwidth, size * 3 +penwidth)) image = QPixmap(QSize(size * 3 + penwidth, size * 3 + penwidth))
# fill background # fill background
backColor = QtGui.QColor(255,255,255,opacity) backColor = QtGui.QColor(255, 255, 255, opacity)
image.fill(backColor) image.fill(backColor)
kwds = { kwds = {
'image': image, 'image': image,
'size': size, 'size': size,
'foreColor': foreColor if swap_cross else secondColor, 'foreColor': foreColor if swap_cross else secondColor,
'penwidth': penwidth, 'penwidth': penwidth,
'backColor': backColor} 'backColor': backColor}
# middle patch # middle patch
image = self.drawPatchQt((1, 1), middle[2], middle[1], middle[0], **kwds) image = self.drawPatchQt((1, 1), middle[2], middle[1], middle[0], **kwds)
# side patch # side patch
kwds['foreColor'] = foreColor kwds['foreColor'] = foreColor
kwds['type'] = side[0] kwds['patch_type'] = side[0]
for i in xrange(4): for i in xrange(4):
pos = [(1, 0), (2, 1), (1, 2), (0, 1)][i] pos = [(1, 0), (2, 1), (1, 2), (0, 1)][i]
image = self.drawPatchQt(pos, side[2] + 1 + i, side[1], **kwds) image = self.drawPatchQt(pos, side[2] + 1 + i, side[1], **kwds)
# corner patch # corner patch
kwds['foreColor'] = secondColor kwds['foreColor'] = secondColor
kwds['type'] = corner[0] kwds['patch_type'] = corner[0]
for i in xrange(4): for i in xrange(4):
pos = [(0, 0), (2, 0), (2, 2), (0, 2)][i] pos = [(0, 0), (2, 0), (2, 2), (0, 2)][i]
image = self.drawPatchQt(pos, corner[2] + 1 + i, corner[1], **kwds) image = self.drawPatchQt(pos, corner[2] + 1 + i, corner[1], **kwds)
return image
def drawPatchQt(self, pos, turn, invert, type, image, size, foreColor, return image
backColor, penwidth):
def drawPatchQt(self, pos, turn, invert, patch_type, image, size, foreColor,
backColor, penwidth): # pylint: disable=unused-argument
""" """
@param size patch size @param size patch size
""" """
path = self.PATH_SET[type] path = self.PATH_SET[patch_type]
if not path: if not path:
# blank patch # blank patch
invert = not invert invert = not invert
path = [(0., 0.), (1., 0.), (1., 1.), (0., 1.), (0., 0.)] path = [(0., 0.), (1., 0.), (1., 1.), (0., 1.), (0., 0.)]
polygon = QPolygonF([QPointF(x * size, y * size) for x, y in path])
polygon = QPolygonF([QPointF(x*size,y*size) for x,y in path])
rot = turn % 4 rot = turn % 4
rect = [QPointF(0.,0.), QPointF(size, 0.), QPointF(size, size), QPointF(0., size)] rect = [QPointF(0., 0.), QPointF(size, 0.), QPointF(size, size), QPointF(0., size)]
rotation = [0,90,180,270] rotation = [0, 90, 180, 270]
nopen = QtGui.QPen(foreColor, Qt.NoPen) nopen = QtGui.QPen(foreColor, Qt.NoPen)
foreBrush = QtGui.QBrush(foreColor, Qt.SolidPattern) foreBrush = QtGui.QBrush(foreColor, Qt.SolidPattern)
if penwidth > 0: if penwidth > 0:
pen_color = QtGui.QColor(255, 255, 255) pen_color = QtGui.QColor(255, 255, 255)
pen = QtGui.QPen(pen_color, Qt.SolidPattern) pen = QtGui.QPen(pen_color, Qt.SolidPattern)
pen.setWidth(penwidth) pen.setWidth(penwidth)
painter = QPainter() painter = QPainter()
painter.begin(image) painter.begin(image)
painter.setPen(nopen) painter.setPen(nopen)
painter.translate(pos[0]*size +penwidth/2, pos[1]*size +penwidth/2) painter.translate(pos[0] * size + penwidth / 2, pos[1] * size + penwidth / 2)
painter.translate(rect[rot]) painter.translate(rect[rot])
painter.rotate(rotation[rot]) painter.rotate(rotation[rot])
if invert: if invert:
# subtract the actual polygon from a rectangle to invert it # subtract the actual polygon from a rectangle to invert it
poly_rect = QPolygonF(rect) poly_rect = QPolygonF(rect)
@ -157,99 +120,119 @@ class IdenticonRendererBase(object):
# draw the fill # draw the fill
painter.setPen(nopen) painter.setPen(nopen)
painter.drawPolygon(polygon, Qt.WindingFill) painter.drawPolygon(polygon, Qt.WindingFill)
painter.end() painter.end()
return image return image
### virtual functions def decode(self, code, twoColor):
def decode(self, code): """virtual functions"""
raise NotImplementedError raise NotImplementedError
class DonRenderer(IdenticonRendererBase): class DonRenderer(IdenticonRendererBase):
""" """
Don Park's implementation of identicon Don Park's implementation of identicon
see : http://www.docuverse.com/blog/donpark/2007/01/19/identicon-updated-and-source-released see : http://www.docuverse.com/blog/donpark/2007/01/19/identicon-updated-and-source-released
""" """
PATH_SET = [ PATH_SET = [
#[0] full square: # [0] full square:
[(0, 0), (4, 0), (4, 4), (0, 4)], [(0, 0), (4, 0), (4, 4), (0, 4)],
#[1] right-angled triangle pointing top-left: # [1] right-angled triangle pointing top-left:
[(0, 0), (4, 0), (0, 4)], [(0, 0), (4, 0), (0, 4)],
#[2] upwardy triangle: # [2] upwardy triangle:
[(2, 0), (4, 4), (0, 4)], [(2, 0), (4, 4), (0, 4)],
#[3] left half of square, standing rectangle: # [3] left half of square, standing rectangle:
[(0, 0), (2, 0), (2, 4), (0, 4)], [(0, 0), (2, 0), (2, 4), (0, 4)],
#[4] square standing on diagonale: # [4] square standing on diagonale:
[(2, 0), (4, 2), (2, 4), (0, 2)], [(2, 0), (4, 2), (2, 4), (0, 2)],
#[5] kite pointing topleft: # [5] kite pointing topleft:
[(0, 0), (4, 2), (4, 4), (2, 4)], [(0, 0), (4, 2), (4, 4), (2, 4)],
#[6] Sierpinski triangle, fractal triangles: # [6] Sierpinski triangle, fractal triangles:
[(2, 0), (4, 4), (2, 4), (3, 2), (1, 2), (2, 4), (0, 4)], [(2, 0), (4, 4), (2, 4), (3, 2), (1, 2), (2, 4), (0, 4)],
#[7] sharp angled lefttop pointing triangle: # [7] sharp angled lefttop pointing triangle:
[(0, 0), (4, 2), (2, 4)], [(0, 0), (4, 2), (2, 4)],
#[8] small centered square: # [8] small centered square:
[(1, 1), (3, 1), (3, 3), (1, 3)], [(1, 1), (3, 1), (3, 3), (1, 3)],
#[9] two small triangles: # [9] two small triangles:
[(2, 0), (4, 0), (0, 4), (0, 2), (2, 2)], [(2, 0), (4, 0), (0, 4), (0, 2), (2, 2)],
#[10] small topleft square: # [10] small topleft square:
[(0, 0), (2, 0), (2, 2), (0, 2)], [(0, 0), (2, 0), (2, 2), (0, 2)],
#[11] downpointing right-angled triangle on bottom: # [11] downpointing right-angled triangle on bottom:
[(0, 2), (4, 2), (2, 4)], [(0, 2), (4, 2), (2, 4)],
#[12] uppointing right-angled triangle on bottom: # [12] uppointing right-angled triangle on bottom:
[(2, 2), (4, 4), (0, 4)], [(2, 2), (4, 4), (0, 4)],
#[13] small rightbottom pointing right-angled triangle on topleft: # [13] small rightbottom pointing right-angled triangle on topleft:
[(2, 0), (2, 2), (0, 2)], [(2, 0), (2, 2), (0, 2)],
#[14] small lefttop pointing right-angled triangle on topleft: # [14] small lefttop pointing right-angled triangle on topleft:
[(0, 0), (2, 0), (0, 2)], [(0, 0), (2, 0), (0, 2)],
#[15] empty: # [15] empty:
[]] []]
# get the [0] full square, [4] square standing on diagonale, [8] small centered square, or [15] empty tile: # get the [0] full square, [4] square standing on diagonale, [8] small centered square, or [15] empty tile:
MIDDLE_PATCH_SET = [0, 4, 8, 15] MIDDLE_PATCH_SET = [0, 4, 8, 15]
# modify path set # modify path set
for idx in xrange(len(PATH_SET)): for idx in xrange(len(PATH_SET)):
if PATH_SET[idx]: if PATH_SET[idx]:
p = map(lambda vec: (vec[0] / 4.0, vec[1] / 4.0), PATH_SET[idx]) p = [(vec[0] / 4.0, vec[1] / 4.0) for vec in PATH_SET[idx]]
PATH_SET[idx] = p + p[:1] PATH_SET[idx] = p + p[:1]
def decode(self, code, twoColor): def decode(self, code, twoColor):
# decode the code """decode the code"""
shift = 0; middleType = (code >> shift) & 0x03
shift += 2; middleInvert= (code >> shift) & 0x01 shift = 0
shift += 1; cornerType = (code >> shift) & 0x0F middleType = (code >> shift) & 0x03
shift += 4; cornerInvert= (code >> shift) & 0x01 shift += 2
shift += 1; cornerTurn = (code >> shift) & 0x03 middleInvert = (code >> shift) & 0x01
shift += 2; sideType = (code >> shift) & 0x0F shift += 1
shift += 4; sideInvert = (code >> shift) & 0x01 cornerType = (code >> shift) & 0x0F
shift += 1; sideTurn = (code >> shift) & 0x03 shift += 4
shift += 2; blue = (code >> shift) & 0x1F cornerInvert = (code >> shift) & 0x01
shift += 5; green = (code >> shift) & 0x1F shift += 1
shift += 5; red = (code >> shift) & 0x1F cornerTurn = (code >> shift) & 0x03
shift += 5; second_blue = (code >> shift) & 0x1F shift += 2
shift += 5; second_green= (code >> shift) & 0x1F sideType = (code >> shift) & 0x0F
shift += 5; second_red = (code >> shift) & 0x1F shift += 4
shift += 1; swap_cross = (code >> shift) & 0x01 sideInvert = (code >> shift) & 0x01
shift += 1
sideTurn = (code >> shift) & 0x03
shift += 2
blue = (code >> shift) & 0x1F
shift += 5
green = (code >> shift) & 0x1F
shift += 5
red = (code >> shift) & 0x1F
shift += 5
second_blue = (code >> shift) & 0x1F
shift += 5
second_green = (code >> shift) & 0x1F
shift += 5
second_red = (code >> shift) & 0x1F
shift += 1
swap_cross = (code >> shift) & 0x01
middleType = self.MIDDLE_PATCH_SET[middleType] middleType = self.MIDDLE_PATCH_SET[middleType]
foreColor = (red << 3, green << 3, blue << 3) foreColor = (red << 3, green << 3, blue << 3)
foreColor = QtGui.QColor(*foreColor) foreColor = QtGui.QColor(*foreColor)
if twoColor: if twoColor:
secondColor = (second_blue << 3, second_green << 3, second_red << 3) secondColor = (second_blue << 3, second_green << 3, second_red << 3)
secondColor = QtGui.QColor(*secondColor) secondColor = QtGui.QColor(*secondColor)
else: else:
secondColor = foreColor secondColor = foreColor
return (middleType, middleInvert, 0),\ return (middleType, middleInvert, 0),\
(cornerType, cornerInvert, cornerTurn),\ (cornerType, cornerInvert, cornerTurn),\
(sideType, sideInvert, sideTurn),\ (sideType, sideInvert, sideTurn),\
foreColor, secondColor, swap_cross foreColor, secondColor, swap_cross
def render_identicon(code, size, twoColor=False, opacity=255, penwidth=0, renderer=None): def render_identicon(code, size, twoColor=False, opacity=255, penwidth=0, renderer=None):
"""Render an image"""
if not renderer: if not renderer:
renderer = DonRenderer renderer = DonRenderer
return renderer(code).render(size, twoColor, opacity, penwidth) return renderer(code).render(size, twoColor, opacity, penwidth)