72 lines
2.7 KiB
Python
72 lines
2.7 KiB
Python
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#!/usr/bin/env python3
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# Copyright (c) 2012 Stuart Pernsteiner
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import sys
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import inkex
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from inkex import Transform
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class SetViewBox(inkex.EffectExtension):
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def effect(self):
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if len(self.svg.selected) != 1:
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sys.exit("Error: You must select exactly one rectangle")
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if list(self.svg.selected.items())[0][1].tag != inkex.addNS('rect','svg'):
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sys.exit("Error: You must select exactly one rectangle")
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sel = None
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for pathId in self.svg.selected:
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sel = self.svg.selected[pathId]
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mat = [[1,0,0],[0,1,0]]
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cur = sel
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while cur is not None:
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curMat = Transform(cur.get('transform'))
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mat = Transform(curMat) @ Transform(mat)
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cur = cur.getparent()
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[x,y,w,h] = map(lambda attr: float(sel.get(attr)),
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['x','y','width','height'])
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(x1,y1) = transformPoint(mat, (x,y))
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(x2,y2) = transformPoint(mat, (x+w,y+h))
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ww = x2-x1
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hh = y2-y1
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format_units = inkex.units.parse_unit(self.svg.get('width'))[1] #get the "Format:" unit at "Display tab"
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root = self.svg.getElement('//svg:svg');
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root.set('viewBox', '%f %f %f %f' % (x1,y1,ww,hh))
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root.set('width', str(ww) + format_units)
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root.set('height', str(hh) + format_units)
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def transformPoint(mat, pt):
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pt2 = [pt[0], pt[1]]
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Transform(mat).apply_to_point(pt2)
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return (pt2[0], pt2[1])
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if __name__ == '__main__':
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SetViewBox().run()
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