import nodebox.graphics.context as nbc
import nodebox.graphics as nbg

from drawFunctions import grid


GRID_SPACING = 10
SCREEN_WIDTH = 500
SCREEN_HEIGHT = 400


class Application( object ):

    def __init__( self, width=500, height=500, gridSpacing=10 ):
        self.width = width
        self.height = height
        self.gridSpacing = gridSpacing

        self.canvas = nbc.Canvas( self.width, self.height )
        self.drawFns = self.getDrawFunctions()

        def draw( canvas ):
            canvas.clear()
            nbg.rect( 0, 0, canvas.width, canvas.height )
            grid( width, height, self.gridSpacing, (0.25, 0.25, 0.25, 1) )
            if 'f5' in canvas.keys:
                self.drawFns = self.getDrawFunctions()
            for drawFn in self.drawFns:
                drawFn()

        self.canvas.run( draw )

    def getDrawFunctions( self ):
        return []


if __name__ == '__main__':
    Application( SCREEN_WIDTH, SCREEN_HEIGHT, GRID_SPACING )