#!/usr/bin/env python

import pyglet
#import math
#import time
#import serial

from colours import *

class Plot:
    def __init__(self, title="Unknown", size=(640, 480)):

        """Setup a the details of a plot, and create a corresponding window"""

        self.title = title
        self.size = size
        self.font = 'Arkhip'
        self.window = pyglet.window.Window(self.size[0], self.size[1], resizable=True)
        self.window.set_caption(title)
        self.window.on_resize = self.resize
        self.window.on_draw = self.draw
    

    def resize(self, width, height):

        """Handle a pyglet resize event, then give control back to the event loop"""

        self.size = (width, height)

        super(pyglet.window.Window, self.window).on_resize(width, height)

    def draw(self):

        """Draw all the components of the graph"""

        self.drawBackground()
        self.drawHeading()
        

    def drawBackground(self):

        """Draw the graph background, currently a plain colour"""

        pyglet.image.SolidColorImagePattern(WHITE).create_image(self.size[0], self.size[1]).blit(0, 0)
        
    def drawHeading(self):

        """Draw a title for the graph (duplicated in the window titlebar, if present"""

        heading = pyglet.text.Label(self.title, color=BLACK,
                            font_name=self.font, font_size=self.size[0]/50, x=self.size[0]/2, y=self.size[1],
                            anchor_x='center', anchor_y='top')
        heading.draw()
        

plots = []         
plots.append(Plot("This is a test plot"))

def pollSerial(foo):

    """Dummy, will check serial port for incoming data"""

    # Note, foo seems to be a float

    pass

pyglet.clock.schedule_interval(pollSerial, 0.1)

pyglet.app.run()