diff options
Diffstat (limited to 'olpcgames/svgsprite.py')
| -rw-r--r-- | olpcgames/svgsprite.py | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/olpcgames/svgsprite.py b/olpcgames/svgsprite.py deleted file mode 100644 index ad247dd..0000000 --- a/olpcgames/svgsprite.py +++ /dev/null @@ -1,84 +0,0 @@ -"""RSVG/Cairo-based rendering of SVG into Pygame Images""" -from pygame import sprite, Rect -from olpcgames import _cairoimage - -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 = self._render( 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 _render( self, width, height ): - """Render our SVG to a Pygame image""" - import rsvg - handle = rsvg.Handle( data = self.svg ) - originalSize = (width,height) - scale = 1.0 - hw,hh = handle.get_dimension_data()[:2] - if hw and hh: - if not width: - if not height: - width,height = hw,hh - else: - scale = float(height)/hh - width = hh/float(hw) * height - elif not height: - scale = float(width)/hw - height = hw/float(hh) * width - else: - # scale only, only rendering as large as it is... - if width/height > hw/hh: - # want it taller than it is... - width = hh/float(hw) * height - else: - height = hw/float(hh) * width - scale = float(height)/hh - - csrf, ctx = _cairoimage.newContext( int(width), int(height) ) - ctx.scale( scale, scale ) - handle.render_cairo( ctx ) - return _cairoimage.asImage( csrf ) - return None - 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 |