root/trunk/RBRapier/RBRapier/Formats/SVG/SVGSkin/rect.py

#!/usr/bin/env python
##~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
##~ License 
##~ 
##- The RuneBlade Foundation library is intended to ease some 
##- aspects of writing intricate Jabber, XML, and User Interface (wxPython, etc.) 
##- applications, while providing the flexibility to modularly change the 
##- architecture. Enjoy.
##~ 
##~ Copyright (C) 2002  TechGame Networks, LLC.
##~ 
##~ This library is free software; you can redistribute it and/or
##~ modify it under the terms of the BSD style License as found in the 
##~ LICENSE file included with this distribution.
##~ 
##~ TechGame Networks, LLC can be reached at:
##~ 3578 E. Hartsel Drive #211
##~ Colorado Springs, Colorado, USA, 80920
##~
##~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#~ Imports 
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

from SVGItems.Shapes import ShapeSVGItem
from SVGSkinObject import SVGSkinObject

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#~ Definitions 
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

class rect(ShapeSVGItem, SVGSkinObject):
    def InterpretSettings(self, settings):
        ShapeSVGItem.InterpretSettings(self, settings)

        width = self._asCoord(settings['width'])
        if width < 0:
            raise ValueError, '"width" attribute can not be negative"'

        height = self._asCoord(settings['height'])
        if height < 0:
            raise ValueError, '"height" attribute can not be negative"'
        self.object.SetDimensions(width, height)

        radiusx = settings.get('rx', None)
        radiusy = settings.get('ry', None)
        if radiusx is None:
            if radiusy is None:
                radiusx = radiusy = 0.
            else:
                radiusx = radiusy
        elif radiusy is None:
            radiusy = radiusx

        radiusx = min(self._asCoord(radiusx), width*0.5)
        if radiusx < 0:
            raise ValueError, '"rx" radius attribute can not be negative"'

        radiusy = min(self._asCoord(radiusy), height*0.5)
        if radiusy < 0:
            raise ValueError, '"ry" radius attribute can not be negative"'

        self.object.SetRadi(radiusx, radiusy)