#!/usr/bin/python2.4

# see http://www.sgi.com/software/opengl/advanced97/notes/node57.html for accum notes

from __future__ import division

import sys, time

import Tkinter as tk

import Image

from louie import dispatcher

from PyQt4.QtCore import QSize

from PyQt4.QtOpenGL import QGLWidget

from OpenGL.GL import *

def xxxdrawWithAlpha(imgString, w, h, alpha):

    # this one should be faster because GL does the alpha adjust, but

    # i don't think it works yet

    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)

    glClear(GL_COLOR_BUFFER_BIT)

    #glBlendColor(1, 1, 1, mag) # needs ARB_imaging

    glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, imgString)

class Surface(QGLWidget):

    """widget that adds multiple image files together with adjustable scales"""

    def __init__(self, parent, filenames, imgRescaleTo=None):

        """

        imgRescaleTo can be a length of pixels to reduce all the input

        images into. Try 64 for a low res drawing.