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Python Source  |  2010-03-12  |  5.8 KB  |  147 lines
  1. #!/usr/bin/env python
  2. """
  3. Copyright (C) 2007,2008 Rob Antonishen; rob.antonishen@gmail.com
  4.  
  5. Permission is hereby granted, free of charge, to any person obtaining a copy
  6. of this software and associated documentation files (the "Software"), to deal
  7. in the Software without restriction, including without limitation the rights
  8. to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  9. copies of the Software, and to permit persons to whom the Software is
  10. furnished to do so, subject to the following conditions:
  11.  
  12. The above copyright notice and this permission notice shall be included in
  13. all copies or substantial portions of the Software.
  14.  
  15. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16. IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17. FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18. AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19. LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20. OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  21. THE SOFTWARE.
  22.  
  23. """
  24. import inkex, os, csv, math
  25.  
  26. try:
  27.     from subprocess import Popen, PIPE
  28.     bsubprocess = True
  29. except:
  30.     bsubprocess = False
  31.  
  32. class Restack(inkex.Effect):
  33.     def __init__(self):
  34.         inkex.Effect.__init__(self)
  35.         self.OptionParser.add_option("-d", "--direction",
  36.                         action="store", type="string", 
  37.                         dest="direction", default="tb",
  38.                         help="direction to restack")
  39.         self.OptionParser.add_option("-a", "--angle",
  40.                         action="store", type="float", 
  41.                         dest="angle", default=0.0,
  42.                         help="arbitrary angle")
  43.         self.OptionParser.add_option("-x", "--xanchor",
  44.                         action="store", type="string", 
  45.                         dest="xanchor", default="m",
  46.                         help="horizontal point to compare")
  47.         self.OptionParser.add_option("-y", "--yanchor",
  48.                         action="store", type="string", 
  49.                         dest="yanchor", default="m",
  50.                         help="vertical point to compare")
  51.     def effect(self):
  52.         if len( self.selected ) > 0:
  53.             objlist = []
  54.             svg = self.document.getroot()
  55.  
  56.             file = self.args[ -1 ]
  57.             #get all bounding boxes in file by calling inkscape again with the --querry-all command line option
  58.             #it returns a comma seperated list structured id,x,y,w,h
  59.             if bsubprocess:
  60.                 p = Popen('inkscape --query-all "%s"' % (file), shell=True, stdout=PIPE, stderr=PIPE)
  61.                 rc = p.wait()
  62.                 f = p.stdout
  63.                 err = p.stderr
  64.             else:
  65.                 _,f,err = os.popen3( "inkscape --query-all %s" % ( file ) )
  66.             reader=csv.reader( f.readlines() )
  67.             f.close()
  68.             err.close()
  69.  
  70.             #build a dictionary with id as the key
  71.             dimen = dict()
  72.             for line in reader:
  73.                 dimen[line[0]] = map( float, line[1:])
  74.  
  75.             #find the center of all selected objects **Not the average!
  76.             x,y,w,h = dimen[self.selected.keys()[0]]
  77.             minx = x
  78.             miny = y
  79.             maxx = x + w
  80.             maxy = y + h
  81.  
  82.             for id, node in self.selected.iteritems():
  83.                 # get the bounding box
  84.                 x,y,w,h = dimen[id]
  85.                 if x < minx:
  86.                     minx = x
  87.                 if (x + w) > maxx:
  88.                     maxx = x + w
  89.                 if y < miny:
  90.                     miny = y
  91.                 if (y + h) > maxy:
  92.                     maxy = y + h
  93.  
  94.             midx = (minx + maxx) / 2
  95.             midy = (miny + maxy) / 2
  96.  
  97.             #calculate distances for each selected object
  98.             for id, node in self.selected.iteritems():
  99.                 # get the bounding box
  100.                 x,y,w,h = dimen[id]
  101.  
  102.                 # calc the comparison coords
  103.                 if self.options.xanchor == "l":
  104.                     cx = x
  105.                 elif self.options.xanchor == "r":
  106.                     cx = x + w
  107.                 else:  # middle
  108.                     cx = x + w / 2
  109.  
  110.                 if self.options.yanchor == "t":
  111.                     cy = y
  112.                 elif self.options.yanchor == "b":
  113.                     cy = y + h
  114.                 else:  # middle
  115.                     cy = y + h / 2
  116.  
  117.                 #direction chosen
  118.                 if self.options.direction == "tb" or self.options.angle == 270:
  119.                     objlist.append([cy,id])
  120.                 elif self.options.direction == "bt" or self.options.angle == 90:
  121.                     objlist.append([-cy,id])
  122.                 elif self.options.direction == "lr" or self.options.angle == 0 or self.options.angle == 360:
  123.                     objlist.append([cx,id])
  124.                 elif self.options.direction == "rl" or self.options.angle == 180:
  125.                     objlist.append([-cx,id])
  126.                 elif self.options.direction == "aa":
  127.                     distance = math.hypot(cx,cy)*(math.cos(math.radians(-self.options.angle)-math.atan2(cy, cx)))
  128.                     objlist.append([distance,id])
  129.                 elif self.options.direction == "ro":
  130.                     distance = math.hypot(midx - cx, midy - cy)
  131.                     objlist.append([distance,id])
  132.                 elif self.options.direction == "ri":
  133.                     distance = -math.hypot(midx - cx, midy - cy)
  134.                     objlist.append([distance,id])
  135.  
  136.             objlist.sort()
  137.             #move them to the top of the object stack in this order.
  138.             for item in objlist:
  139.                 svg.append( self.selected[item[1]])
  140.  
  141. if __name__ == '__main__':
  142.     e = Restack()
  143.     e.affect()
  144.  
  145.  
  146. # vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 encoding=utf-8 textwidth=99
  147.