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-rwxr-xr-xolpcgames/svgsprite.py52
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diff --git a/olpcgames/svgsprite.py b/olpcgames/svgsprite.py
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--- a/olpcgames/svgsprite.py
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-"""RSVG/Cairo-based rendering of SVG into Pygame Images"""
-from pygame import sprite, Rect
-from olpcgames import svg
-
-class SVGSprite( sprite.Sprite ):
- """Sprite class which renders SVG source-code as a Pygame image
-
- Note:
-
- Currently this sprite class is a bit over-engineered, it gets in the way
- if you want to, e.g. animate among a number of SVG drawings, as it
- assumes that setSVG will always set a single SVG file for rendering.
- """
- rect = image = None
- resolution = None
- def __init__(
- self, svg=None, size=None, *args
- ):
- """Initialise the svg sprite
-
- svg -- svg source text (i.e. content of an svg file)
- size -- optional, to constrain size, (width,height), leaving one
- as None or 0 causes proportional scaling, leaving both
- as None or 0 causes natural scaling (screen resolution)
- args -- if present, groups to which to automatically add
- """
- self.size = size
- super( SVGSprite, self ).__init__( *args )
- if svg:
- self.setSVG( svg )
- def setSVG( self, svg ):
- """Set our SVG source"""
- self.svg = svg
- # XXX could delay this until actually asked to display...
- if self.size:
- width,height = self.size
- else:
- width,height = None,None
- self.image = svg.render( self.svg, (width,height) ).convert_alpha()
- rect = self.image.get_rect()
- if self.rect:
- rect.move( self.rect ) # should let something higher-level do that...
- self.rect = rect
- def copy( self ):
- """Create a copy of this sprite without reloading the svg image"""
- result = self.__class__(
- size = self.size
- )
- result.image = self.image
- result.rect = Rect(self.rect)
- result.resolution = self.resolution
- return result