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mightyscape-1.1-deprecated/extensions/fablabchemnitz/card_layout_guides/card_layout_guides.py

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2020-07-30 01:16:18 +02:00
#!/usr/bin/env python3
# Copyright 2016 Luke Phillips (lukerazor@hotmail.com)
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
#along with this program; if not, write to the Free Software
#Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# Extension dirs
# linux:~/.config/inkscape/extensions
# windows: [Drive]:\Program Files\Inkscape\share\extensions
from lxml import etree
import inkex
import copy
import math
FOLD_GAP = 5
CROP_GAP = 2
CROP_LENGTH = 3
inkex.NSS[u'cs'] = u'http://www.razorfoss.org/cardlayoutguides/'
def PrintDebug(string):
inkex.utils.debug( _(str(string)) )
def RoundAndDeduplicatePoints(points):
return sorted(list(set(map(lambda x: round(x, 3), points))))
class Point():
def __init__(self, x, y):
self.x = x
self.y = y
def rotate(self, angle, origin):
"""
Rotate a point counterclockwise by a given angle around a given origin.
The angle should be given in degrees.
"""
rads = math.radians(angle)
newX = origin.x + math.cos(rads) * (self.x - origin.x) - math.sin(rads) * (self.y - origin.y)
newY = origin.y + math.sin(rads) * (self.x - origin.x) + math.cos(rads) * (self.y - origin.y)
return Point(newX, newY)
def add(self, point):
return Point(self.x + point.x, self.y + point.y)
@staticmethod
def parsePoint(pointString):
x, y = map(lambda v: float(v), pointString.split(","))
return Point(x, y)
@staticmethod
def parse(pointString, orientationString=None):
p1 = Point.parsePoint(pointString)
p = Point(p1.x, p1.y)
if orientationString != None:
po = Point.parsePoint(orientationString)
p = p1.add(po.rotate(270, Point(0, 0)))
return p
class LineGeneratorBase(object):
def __init__(self, card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc):
self.UnitConverterFunc = unitConverterFunc
self.card_width = card_width
self.card_height = card_height
self.card_margin = card_margin
self.bleed_margin = bleed_margin
self.PageWidth = pageWidth
self.PageHeight = pageHeight
self.page_margin = page_margin
self.ContainerWidth = -1
self.ContainerHeight = -1
self.GuideOffsetsWithFold = [
0,
self.bleed_margin, self.card_margin, self.card_height - 2*self.card_margin, self.card_margin, self.bleed_margin,
2*FOLD_GAP,
self.bleed_margin, self.card_margin, self.card_height - 2*self.card_margin, self.card_margin, self.bleed_margin
]
self.GuideOffsetsNoFold = [
0,
self.bleed_margin, self.card_margin,
self.card_width - 2*self.card_margin,
self.card_margin, self.bleed_margin
]
def CalcPageLeftMargin(self):
return (self.PageWidth - self.ContentWidth) / 2.0
def CalcPageBottomMargin(self):
return (self.PageHeight - self.ContentHeight) / 2.0
def DrawGuide(self, xmlParent, xpos, ypos):
posString = "{},{}".format(xpos, ypos)
attribs = {'position': posString, 'orientation': posString}
etree.SubElement(xmlParent, inkex.addNS('guide',"sodipodi"), attribs)
def ConvertPoint(self, p):
# convert point into svg approriate values, including catering for inkscapes "alternative" axis sytem ie 0, 0 is bottom left not top left
newX = self.UnitConverterFunc("{}mm".format(p.x))
newY = self.PageHeight - self.UnitConverterFunc("{}mm".format(p.y))
return Point(newX, newY)
def DrawLine(self, xmlParent, p1, p2):
cp1 = self.ConvertPoint(p1)
cp2 = self.ConvertPoint(p2)
pathStr = "M {},{} {}, {}".format(cp1.x, cp1.y, cp2.x, cp2.y)
style = {'stroke': '#000000', 'stroke-width': self.UnitConverterFunc('0.25mm'), 'fill': 'none'}
attribs = {'style': str(inkex.Style(style)), 'd': pathStr}
etree.SubElement(xmlParent, inkex.addNS('path','svg'), attribs )
def DrawVerticleGuides(self, xmlParent, positions, gap):
curPos = self.CalcPageLeftMargin()
lastPos = -1
while curPos + self.ContainerWidth <= self.PageWidth - self.page_margin:
for offset in positions:
curPos += offset
if curPos != lastPos: # don't double draw
self.DrawGuide(xmlParent, curPos, 0)
lastPos = curPos
curPos += gap
def DrawHorizontalGuides(self, xmlParent, positions, gap):
curPos = self.CalcPageBottomMargin()
lastPos = -1
while curPos + self.ContainerHeight <= self.PageHeight - self.page_margin:
for offset in positions:
curPos += offset
if curPos != lastPos: # don't double draw
self.DrawGuide(xmlParent, 0, curPos)
lastPos = curPos
curPos += gap
def GenerateFoldLines(self, xmlParent):
lines = self.GetFoldLinePositions()
for line in lines:
self.DrawLine(xmlParent, line[0], line[1])
def GenerateCropMarks(self, xmlParent):
lines = self.GetCropMarkLines()
for line in lines:
self.DrawLine(xmlParent, line[0], line[1])
@staticmethod
def CreateLineGenerator(layout, orientation, card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc):
if layout == "SIMPLE":
return SimpleGridLineGenerator(orientation, card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc)
if orientation == "HORIZONTAL":
return LineGeneratorForHorizontalCards(card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc)
return LineGeneratorForVerticalCards(card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc)
class SimpleGridLineGenerator(LineGeneratorBase):
def __init__(self, orientation, card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc):
if orientation == "HORIZONTAL":
super(SimpleGridLineGenerator, self).__init__(card_height, card_width, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc)
else:
super(SimpleGridLineGenerator, self).__init__(card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc)
self.ContainerWidth = self.card_width + 2 * bleed_margin
self.ContainerHeight = self.card_height + 2 * bleed_margin
# num across
# num down
self.NumContainersAcross = int((self.PageWidth - 2*self.page_margin) // self.ContainerWidth) # round down division
self.NumContainersDown = int((self.PageHeight - 2*self.page_margin) // self.ContainerHeight) # round down division
# content sizes
self.ContentWidth = self.NumContainersAcross * self.ContainerWidth
self.ContentHeight = self.NumContainersDown * self.ContainerHeight
def GenerateGuides(self, xmlParent):
horizontalOffsets = self.GuideOffsetsNoFold = [
0,
self.bleed_margin, self.card_margin,
self.card_width - 2*self.card_margin,
self.card_margin, self.bleed_margin
]
verticalOffsets = self.GuideOffsetsNoFold = [
0,
self.bleed_margin, self.card_margin,
self.card_height - 2*self.card_margin,
self.card_margin, self.bleed_margin
]
self.DrawVerticleGuides(xmlParent, horizontalOffsets, 0)
self.DrawHorizontalGuides(xmlParent, verticalOffsets, 0)
def GetFoldLinePositions(self):
return [] # no fold lines in simple grid
def GetCropMarkLines(self):
lines = []
leftMargin = self.CalcPageLeftMargin()
bottomMargin = self.CalcPageBottomMargin()
#determine all horizontal crop marks, duplicates possible
# figure out the ypos
horizontal_ypos = []
for idx in range(self.NumContainersDown):
bottomY = self.bleed_margin
topY = bottomY + self.card_height
containerOffset = bottomMargin + idx*self.ContainerHeight
horizontal_ypos.append(containerOffset + bottomY)
horizontal_ypos.append(containerOffset + topY)
horizontal_ypos = RoundAndDeduplicatePoints(horizontal_ypos) # remove duplicate positions
horizontal_xpos = [leftMargin - CROP_GAP, self.PageWidth - leftMargin + CROP_GAP + CROP_LENGTH]
for xpos in horizontal_xpos:
for ypos in horizontal_ypos:
lines.append([
Point(xpos - CROP_LENGTH, ypos),
Point(xpos, ypos)
])
#determine all vertical crop marks, duplicates possible
# figure out the xpos
vertical_xpos = []
for idx in range(self.NumContainersAcross):
leftX = self.bleed_margin
rightX = leftX + self.card_width
containerOffset = leftMargin + idx*self.ContainerWidth
vertical_xpos.append(containerOffset + leftX)
vertical_xpos.append(containerOffset + rightX)
vertical_xpos = RoundAndDeduplicatePoints(vertical_xpos) # remove duplicate positions
vertical_ypos = [bottomMargin - CROP_GAP, self.PageHeight - bottomMargin + CROP_GAP + CROP_LENGTH]
for xpos in vertical_xpos:
for ypos in vertical_ypos:
lines.append([
Point(xpos, ypos),
Point(xpos, ypos - CROP_LENGTH)
])
return lines
class LineGeneratorForVerticalCards(LineGeneratorBase):
def __init__(self, card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc):
super(LineGeneratorForVerticalCards, self).__init__(card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc)
self.ContainerWidth = card_width + 2*bleed_margin
self.ContainerHeight = 2*(card_height + 2*bleed_margin + FOLD_GAP)
# num across
self.NumContainersAcross = int((self.PageWidth - 2*self.page_margin) // self.ContainerWidth) # round down division
# num down
contentHeight = lambda n: n * self.ContainerHeight + (n - 1)*(2*FOLD_GAP)
workingHeight = self.PageHeight - 2*self.page_margin
self.NumContainersDown = int(workingHeight // self.ContainerHeight) # round down division for nominal value
if contentHeight(self.NumContainersDown) > workingHeight:
self.NumContainersDown -= 1
# content sizes
self.ContentWidth = self.NumContainersAcross * self.ContainerWidth
self.ContentHeight = contentHeight(self.NumContainersDown)
def GenerateGuides(self, xmlParent):
self.DrawVerticleGuides(xmlParent, self.GuideOffsetsNoFold, 0)
self.DrawHorizontalGuides(xmlParent, self.GuideOffsetsWithFold, 2*FOLD_GAP)
def GetFoldLinePositions(self):
lines = []
leftMargin = self.CalcPageLeftMargin()
for idx in range(self.NumContainersDown):
foldY = self.CalcPageBottomMargin() + idx*(self.ContainerHeight + 2*FOLD_GAP) + self.ContainerHeight/2
lines.append([Point(leftMargin, foldY), Point(self.PageWidth - leftMargin, foldY)])
return lines
def GetCropMarkLines(self):
lines = []
leftMargin = self.CalcPageLeftMargin()
bottomMargin = self.CalcPageBottomMargin()
vertical_ypos = []
# determine all of the hornzontal facing crop marks, no duplicates possible
for idx in range(self.NumContainersDown):
bottomY = self.bleed_margin
topY = bottomY + self.card_height
containerOffset = bottomMargin + idx*(self.ContainerHeight + 2*FOLD_GAP)
vertical_ypos += [
containerOffset - CROP_GAP,
containerOffset + 2*self.bleed_margin + 2*self.card_margin + self.card_height + CROP_GAP + CROP_LENGTH
] # stash for later
for ypos in [containerOffset + bottomY, containerOffset + topY]:
for xpos in [leftMargin - CROP_GAP, self.PageWidth - leftMargin + CROP_GAP + CROP_LENGTH]:
lines.append([
Point(xpos, ypos),
Point(xpos - CROP_LENGTH, ypos)
])
#determine all vertical crop marks, duplicates possible
# figure out the xpos
vertical_xpos = []
for idx in range(self.NumContainersAcross):
leftX = self.bleed_margin
rightX = leftX + self.card_width
containerOffset = leftMargin + idx*self.ContainerWidth
vertical_xpos.append(containerOffset + leftX)
vertical_xpos.append(containerOffset + rightX)
vertical_xpos = list(set(vertical_xpos)) # remove duplicate positions
for xpos in vertical_xpos:
for ypos in vertical_ypos:
lines.append([
Point(xpos, ypos),
Point(xpos, ypos - CROP_LENGTH)
])
return lines
class LineGeneratorForHorizontalCards(LineGeneratorBase):
def __init__(self, card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc):
super(LineGeneratorForHorizontalCards, self).__init__(card_width, card_height, card_margin, bleed_margin, pageWidth, pageHeight, page_margin, unitConverterFunc)
self.ContainerWidth = 2*(card_height + 2 * bleed_margin + FOLD_GAP)
self.ContainerHeight = card_width + 2 * bleed_margin
# num across
contentWidth = lambda n: n * self.ContainerWidth + (n - 1)*(2*FOLD_GAP)
workingWidth = self.PageWidth - 2*self.page_margin
self.NumContainersAcross = int(workingWidth // self.ContainerWidth) # round down division for nominal value
if contentWidth(self.NumContainersAcross) > workingWidth:
self.NumContainersAcross -= 1
# num down
self.NumContainersDown = int((self.PageHeight - 2*self.page_margin) // self.ContainerHeight) # round down division
# content sizes
self.ContentWidth = contentWidth(self.NumContainersAcross)
self.ContentHeight = self.NumContainersDown * self.ContainerHeight
def GenerateGuides(self, xmlParent):
self.DrawVerticleGuides(xmlParent, self.GuideOffsetsWithFold, 2*FOLD_GAP)
self.DrawHorizontalGuides(xmlParent, self.GuideOffsetsNoFold, 0)
def GetFoldLinePositions(self):
lines = []
bottomMargin = self.CalcPageBottomMargin()
for idx in range(self.NumContainersAcross):
foldX = self.CalcPageLeftMargin() + idx*(self.ContainerWidth + 2*FOLD_GAP) + self.ContainerWidth/2
lines.append([Point(foldX, bottomMargin), Point(foldX, self.PageHeight - bottomMargin)])
return lines
def GetCropMarkLines(self):
lines = []
leftMargin = self.CalcPageLeftMargin()
bottomMargin = self.CalcPageBottomMargin()
horizontal_xpos = []
# determine all of the vertical facing crop marks, no duplicates possible
for idx in range(self.NumContainersAcross):
leftX = self.bleed_margin
rightX = leftX + self.card_height
containerOffset = leftMargin + idx*(self.ContainerWidth + 2*FOLD_GAP)
horizontal_xpos += [
containerOffset - CROP_GAP,
containerOffset + 2*self.bleed_margin + 2*self.card_margin + self.card_height + CROP_GAP + CROP_LENGTH
] # stash for later
for xpos in [containerOffset + leftX, containerOffset + rightX]:
for ypos in [bottomMargin - CROP_GAP, self.PageHeight - bottomMargin + CROP_GAP + CROP_LENGTH]:
lines.append([
Point(xpos, ypos),
Point(xpos, ypos - CROP_LENGTH)
])
#determine all horizontal crop marks, duplicates possible
# figure out the xpos
horizontal_ypos = []
for idx in range(self.NumContainersDown):
bottomY = self.bleed_margin
topY = bottomY + self.card_width
containerOffset = bottomMargin + idx*self.ContainerHeight
horizontal_ypos.append(containerOffset + bottomY)
horizontal_ypos.append(containerOffset + topY)
horizontal_ypos = RoundAndDeduplicatePoints(horizontal_ypos) # remove duplicate positions
for ypos in horizontal_ypos:
for xpos in horizontal_xpos:
lines.append([
Point(xpos, ypos),
Point(xpos - CROP_LENGTH, ypos)
])
return lines
class CardLayoutGuides(inkex.EffectExtension):
def add_arguments(self, pars):
pars.add_argument('-l', '--layout')
pars.add_argument('-w', '--card_width', type = float)
pars.add_argument('-d', '--card_height', type = float)
pars.add_argument('-o', '--orientation')
pars.add_argument('-c', '--card_margin', type = float)
pars.add_argument('-b', '--bleed_margin', type = float)
pars.add_argument('-p', '--page_margin', type = float)
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def effect(self):
# find dimensions of page
pageWidth = self.svg.uutounit(self.svg.width, "mm")
pageHeight = self.svg.uutounit(self.svg.height, "mm")
opt = self.options
guideParent = self.document.xpath('//sodipodi:namedview',namespaces=inkex.NSS)[0]
### GUIDES
# remove all the existing guides
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[node.delete() for node in self.document.xpath('//sodipodi:guide',namespaces=inkex.NSS)]
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# create the generator object
gen = LineGeneratorBase.CreateLineGenerator(opt.layout, opt.orientation, opt.card_width, opt.card_height, opt.card_margin, opt.bleed_margin, pageWidth, pageHeight, opt.page_margin, self.svg.unittouu)
gen.GenerateGuides(guideParent)
### FOLD LINES
# remove any existing 'Crop marks' layer
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[node.delete() for node in self.document.xpath("//svg:g[@inkscape:label='Crop Marks']",namespaces=inkex.NSS)]
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svg = self.document.xpath('//svg:svg', namespaces=inkex.NSS)[0]
layer = etree.SubElement(svg, inkex.addNS('g',"svg"), {})
layer.set(inkex.addNS('label', 'inkscape'), "Crop Marks")
layer.set(inkex.addNS('groupmode', 'inkscape'), 'layer')
#layer.set(inkex.addNS('insensitive', 'sodipodi'), 'true')
gen.GenerateFoldLines(layer)
### CROP MARKS
gen.GenerateCropMarks(layer)
if __name__ == '__main__':
CardLayoutGuides().run()