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Text File  |  2011-07-08  |  7KB  |  155 lines
  1. #!/usr/bin/env python
  2. """
  3. Copyright (C) 2007-2011 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.             parentnode = self.current_layer
  56.             file = self.args[ -1 ]
  57.             
  58.             #get all bounding boxes in file by calling inkscape again with the --query-all command line option
  59.             #it returns a comma seperated list structured id,x,y,w,h
  60.             if bsubprocess:
  61.                 p = Popen('inkscape --query-all "%s"' % (file), shell=True, stdout=PIPE, stderr=PIPE)
  62.                 err = p.stderr
  63.                 f = p.communicate()[0]
  64.                 try:
  65.                     reader=csv.CSVParser().parse_string(f)    #there was a module cvs.py in earlier inkscape that behaved differently
  66.                 except:
  67.                     reader=csv.reader(f.split( os.linesep ))
  68.                 err.close() 
  69.             else:
  70.                 _,f,err = os.popen3('inkscape --query-all "%s"' % ( file ) )
  71.                 reader=csv.reader( f )
  72.                 err.close()
  73.                 
  74.             #build a dictionary with id as the key
  75.             dimen = dict()
  76.             for line in reader:
  77.                 if len(line) > 0:
  78.                     dimen[line[0]] = map( float, line[1:])
  79.  
  80.             if not bsubprocess: #close file if opened using os.popen3
  81.                 f.close
  82.                 
  83.             #find the center of all selected objects **Not the average!
  84.             x,y,w,h = dimen[self.selected.keys()[0]]
  85.             minx = x
  86.             miny = y
  87.             maxx = x + w
  88.             maxy = y + h
  89.  
  90.             for id, node in self.selected.iteritems():
  91.                 # get the bounding box
  92.                 x,y,w,h = dimen[id]
  93.                 if x < minx:
  94.                     minx = x
  95.                 if (x + w) > maxx:
  96.                     maxx = x + w
  97.                 if y < miny:
  98.                     miny = y
  99.                 if (y + h) > maxy:
  100.                     maxy = y + h
  101.  
  102.             midx = (minx + maxx) / 2
  103.             midy = (miny + maxy) / 2
  104.  
  105.             #calculate distances for each selected object
  106.             for id, node in self.selected.iteritems():
  107.                 # get the bounding box
  108.                 x,y,w,h = dimen[id]
  109.  
  110.                 # calc the comparison coords
  111.                 if self.options.xanchor == "l":
  112.                     cx = x
  113.                 elif self.options.xanchor == "r":
  114.                     cx = x + w
  115.                 else:  # middle
  116.                     cx = x + w / 2
  117.  
  118.                 if self.options.yanchor == "t":
  119.                     cy = y
  120.                 elif self.options.yanchor == "b":
  121.                     cy = y + h
  122.                 else:  # middle
  123.                     cy = y + h / 2
  124.                 
  125.                 #direction chosen
  126.                 if self.options.direction == "tb" or (self.options.direction == "aa" and self.options.angle == 270):
  127.                     objlist.append([cy,id])
  128.                 elif self.options.direction == "bt" or (self.options.direction == "aa" and self.options.angle == 90):
  129.                     objlist.append([-cy,id])
  130.                 elif self.options.direction == "lr" or (self.options.direction == "aa" and (self.options.angle == 0 or self.options.angle == 360)):
  131.                     objlist.append([cx,id])
  132.                 elif self.options.direction == "rl" or (self.options.direction == "aa" and self.options.angle == 180):
  133.                     objlist.append([-cx,id])
  134.                 elif self.options.direction == "aa":
  135.                     distance = math.hypot(cx,cy)*(math.cos(math.radians(-self.options.angle)-math.atan2(cy, cx)))
  136.                     objlist.append([distance,id])
  137.                 elif self.options.direction == "ro":
  138.                     distance = math.hypot(midx - cx, midy - cy)
  139.                     objlist.append([distance,id])
  140.                 elif self.options.direction == "ri":
  141.                     distance = -math.hypot(midx - cx, midy - cy)
  142.                     objlist.append([distance,id])
  143.  
  144.             objlist.sort()
  145.             #move them to the top of the object stack in this order.
  146.             for item in objlist:
  147.                 parentnode.append( self.selected[item[1]])
  148.  
  149. if __name__ == '__main__':
  150.     e = Restack()
  151.     e.affect()
  152.  
  153.  
  154. # vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 encoding=utf-8 textwidth=99
  155.