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Viewing changes to share/extensions/hpgl_output.py

  • Committer: Bazaar Package Importer
  • Author(s): Bryce Harrington
  • Date: 2009-07-02 17:09:45 UTC
  • mfrom: (1.1.9 upstream)
  • Revision ID: james.westby@ubuntu.com-20090702170945-nn6d6zswovbwju1t
Tags: 0.47~pre1-0ubuntu1
https://launchpad.net/bugs/348842
https://launchpad.net/bugs/391149
* New upstream release.
  - Don't constrain maximization on small resolution devices (pre0)
    (LP: #348842)
  - Fixes segfault on startup (pre0)
    (LP: #391149)

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share/extensions/hpgl_output.py
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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'''
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import inkex, cubicsuperpath, simplepath, cspsubdiv
 
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import inkex, cubicsuperpath, simplepath, simplestyle, cspsubdiv
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class MyEffect(inkex.Effect):
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    def __init__(self):
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        inkex.Effect.__init__(self)
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        self.OptionParser.add_option("-f", "--flatness",
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                        action="store", type="float", 
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                        dest="flat", default=10.0,
 
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                        dest="flat", default=0.2,
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                        help="Minimum flatness of the subdivided curves")
 
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        self.OptionParser.add_option("-m", "--mirror",
 
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                        action="store", type="inkbool", 
 
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                        dest="mirror", default="FALSE",
 
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                        help="Mirror Y-Axis")
 
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        self.OptionParser.add_option("-x", "--xOrigin",
 
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                        action="store", type="float", 
 
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                        dest="xOrigin", default=0.0,
 
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                        help="X Origin (pixels)")
 
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        self.OptionParser.add_option("-y", "--yOrigin",
 
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                        action="store", type="float", 
 
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                        dest="yOrigin", default=0.0,
 
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                        help="Y Origin (pixels)")
 
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        self.OptionParser.add_option("-p", "--plotInvisibleLayers",
 
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                        action="store", type="inkbool", 
 
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                        dest="plotInvisibleLayers", default="FALSE",
 
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                        help="Plot invisible layers")
 
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        self.hpgl = ['IN;SP1;']
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    def output(self):
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        print ''.join(self.hpgl)
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    def effect(self):
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        path = '//svg:path'
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        for node in self.document.getroot().xpath(path, namespaces=inkex.NSS):
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            d = node.get('d')
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            if len(simplepath.parsePath(d)):
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                p = cubicsuperpath.parsePath(d)
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                cspsubdiv.cspsubdiv(p, self.options.flat)
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                for sp in p:
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                    first = True
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                    for csp in sp:
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                        cmd = 'PD'
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                        if first:
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                            cmd = 'PU'
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                        first = False
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                        self.hpgl.append('%s%s,%s;' % (cmd,csp[1][0],csp[1][1]))
 
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        mirror = 1.0
 
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        if self.options.mirror:
 
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            mirror = -1.0
 
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        x0 = self.options.xOrigin
 
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        y0 = self.options.yOrigin
 
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        scale = 1016.0/90
 
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        i = 0
 
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        layerPath = '//svg:g[@inkscape:groupmode="layer"]'
 
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        for layer in self.document.getroot().xpath(layerPath, namespaces=inkex.NSS):
 
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            i += 1
 
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            style = layer.get('style')
 
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            if style:
 
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                style = simplestyle.parseStyle(style)
 
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                if style['display']=='none':
 
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                    if not self.options.plotInvisibleLayers:
 
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                        continue
 
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            nodePath = ('//svg:g[@inkscape:groupmode="layer"][%d]/descendant::svg:path') % i
 
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            for node in self.document.getroot().xpath(nodePath, namespaces=inkex.NSS):
 
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                d = node.get('d')
 
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                if len(simplepath.parsePath(d)):
 
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                    p = cubicsuperpath.parsePath(d)
 
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                    cspsubdiv.cspsubdiv(p, self.options.flat)
 
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                    for sp in p:
 
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                        first = True
 
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                        for csp in sp:
 
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                            cmd = 'PD'
 
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                            if first:
 
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                                cmd = 'PU'
 
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                            first = False
 
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                            self.hpgl.append('%s%d,%d;' % (cmd,(csp[1][0] - x0)*scale,(csp[1][1] - y0)*scale*mirror))
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if __name__ == '__main__':   #pragma: no cover
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    e = MyEffect()
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    e.affect()
 
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# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 encoding=utf-8 textwidth=99