fairly hideous kuler-based nodebox desktop background (random bubbles)

background.py

# A quick desktop background thing using Nodebox and Kuler.
# Requires the Nodebox 'web' plugin.

size (1680, 1050)
gridSize = 10

# Color Scheme taken from Kuler - "Aspirin C"
ximport ("web")
colors, themes = [], web.kuler.search_by_id (251864)
for r, g, b in themes[0]:
    colors += [color (r, g, b)]

# Cocoa drop shadow stuff, from the Nodebox tutorial

from AppKit import NSShadow, NSColor
from nodebox.graphics import Grob
 
class shadow(Grob):
    def __init__(self, x=10, y=10, alpha=0.25, blur=4.0):
        Grob.__init__(self, _ctx)
        self._shadow = NSShadow.alloc().init()
        self._shadow.setShadowOffset_((x, -y))
        self._shadow.setShadowColor_(color(0, 0, 0, alpha)._rgb)
        self._shadow.setShadowBlurRadius_(blur)
        self.draw()
    def _draw(self):
        self._shadow.set()
        
def noshadow():
    shadow(alpha=0)

shadow (x = 25, y = 25, blur = 10.0)

# Rough Grid, adapted from the Nodebox tutorial

for x, y in grid(WIDTH/gridSize, HEIGHT/gridSize, gridSize, gridSize):
    s = random()*gridSize
    fill(choice (colors))
    oval(x, y, s, s)
    deltaX = (random()-0.5)*100
    deltaY = (random()-0.5)*100
    deltaS = (random()-0.5)*100
    fill(choice (colors))
    oval (x + deltaX, y + deltaY, s + deltaS, s + deltaS)

# A semitransparent shelf for your desktop icons, if desired

# fill (0, 0.5)
# rect (1680-500, 0, 500, 1050)