#!/usr/bin/python

# This is statement is required by the build system to query build info
if __name__ == '__build__':
				raise Exception


import string
__version__ = string.split('$Revision: 1.2 $')[1]
__date__ = string.join(string.split('$Date: 2006/10/02 00:11:36 $')[1:3], ' ')
__author__ = 'Tarn Weisner Burton <twburton@users.sourceforge.net>'

from OpenGL.GL import *
from OpenGL.Tk import *
from OpenGL.GLUT import *
import sys
	
def redraw_checker(o):
	glClearColor(1, 0, 1, 0)
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
	glColor3f(0, 1, 0)
	#draw checkerboard
	N = 4
	glDisable(GL_LIGHTING)
	for x in range(-N, N):
		for y in range(-N, N):
			if (x + y) % 2 == 0:
				glColor3f(1, 1, 0)
			else:
				glColor3f(0, 0, 0)
			glRectf(x, y, x + 1, y + 1)
	glEnable(GL_LIGHTING)

	glPushMatrix()
	glTranslatef(0., 0., 1.)
	glutSolidSphere(1.0,20,20)
	glPopMatrix()

def init():
	glMaterialfv(GL_FRONT, GL_AMBIENT, [0.2, 0.2, 0.2, 1.0])
	glMaterialfv(GL_FRONT, GL_DIFFUSE, [0.8, 0.8, 0.8, 1.0])
	glMaterialfv(GL_FRONT, GL_SPECULAR, [1.0, 0.0, 1.0, 1.0])
	glMaterialfv(GL_FRONT, GL_SHININESS, 50.0)
	glLightfv(GL_LIGHT0, GL_AMBIENT, [0.0, 1.0, 0.0, 1.0])
	glLightfv(GL_LIGHT0, GL_DIFFUSE, [1.0, 1.0, 1.0, 1.0])
	glLightfv(GL_LIGHT0, GL_SPECULAR, [1.0, 1.0, 1.0, 1.0])
	glLightfv(GL_LIGHT0, GL_POSITION, [1.0, 1.0, 1.0, 0.0]);	 
	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, [0.2, 0.2, 0.2, 1.0])
	glEnable(GL_LIGHTING)
	glEnable(GL_LIGHT0)
	glDepthFunc(GL_LESS)
	glEnable(GL_DEPTH_TEST)


def redraw_cone(o):
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
	glPushMatrix()
	glTranslatef(0, -1, 0)
	glRotatef(250, 1, 0, 0)
	glutSolidCone(1, 2, 50, 10)
	glPopMatrix()

def main():
	f = Frame()
	f.pack(side = TOP)
	o1 = Opengl(width = 200, height = 200, double = 1, depth = 1)
	glutInit([])
	o1.redraw = redraw_checker
	quit = Button(f, text = 'Quit', command = sys.exit)
	quit.pack(side = TOP, expand=YES, fill=BOTH)
	o1.pack(side = TOP, expand = YES, fill = BOTH)
	o1.set_eyepoint(20.)

	o2 = Opengl(width = 200, height = 200, double = 1)
	o2.redraw = redraw_cone
	o2.autospin_allowed = 1
	o2.pack(side = TOP, expand = YES, fill = BOTH)
	init()

	o1.mainloop()

main()




