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# robothon 2009
# rasterise the shape in glyph "A"
# and draw boxes in a new glyph named "A.silly"
#
 
from robofab.world import CurrentFont, CurrentGlyph, RGlyph

f = CurrentFont()

for name in [glyph.name for glyph in f]:
    sourceGlyph = name
 
    source = f[sourceGlyph]
 
    # find out how big the shape is from the glyph.box attribute
    if sourceGlyph != "space":
        xMin, yMin, xMax, yMax = source.box
 
        # create a new glyph
        dest = f.newGlyph("silly")
        dest.width = source.width
 
        # get a pen to draw in the new glyph
        myPen = dest.getPen()
 
        # a function which draws a rectangle at a specified place
        def drawRect(pen, x, y, size=50):
            pen.moveTo((x-.6*size, y-.6*size))
            pen.lineTo((x+.6*size, y-.6*size))
            pen.lineTo((x+.6*size, y+.6*size))
            pen.lineTo((x-.6*size, y+.6*size))
            pen.closePath()
 
        # the size of the raster unit
        resolution = 60
         
        # draw from top to bottom
        yValues = range(int(yMin), int(yMax), resolution)
        yValues.reverse()
 
        # go for it!
        for y in yValues:
            for x in range(int(xMin), int(xMax), resolution):
                # check the source glyph is white or black at x,y
                if source.pointInside((x, y)):
                    drawRect(myPen, x, y, resolution-10)
            # update for each line if you like the animation
            # otherwise move the update() out of the loop
            #dest.update()
            print dest
    
        source = f.newGlyph(sourceGlyph, clear=True)
        source.appendGlyph(dest)

f.removeGlyph('silly')
f.update()