gistfile1.txt

import wx
import wx.glcanvas
from OpenGL.GL import *


class GLFrame(wx.Frame):

    """A simple class for using OpenGL with wxPython."""
    def __init__(self, parent, id, title, pos=wx.DefaultPosition,
                 size=wx.DefaultSize, style=wx.DEFAULT_FRAME_STYLE,
                 name='frame'):
        # Forcing a specific style on the window.
        #   Should this include styles passed?
        style = wx.DEFAULT_FRAME_STYLE | wx.NO_FULL_REPAINT_ON_RESIZE
        super(GLFrame, self).__init__(parent, id, title,
                                      pos, size, style, name)
        self._GLinitialized = False
        attribList = (wx.glcanvas.WX_GL_RGBA,  # RGBA
                      wx.glcanvas.WX_GL_DOUBLEBUFFER,  # Double Buffered
                      wx.glcanvas.WX_GL_DEPTH_SIZE, 24)  # 24 bit
        # Create the canvas
        self.canvas = wx.glcanvas.GLCanvas(self, attribList=attribList)
        # Set the event handlers.
        self.canvas.Bind(wx.EVT_PAINT, self.processPaintEvent)

    def processPaintEvent(self, event):
        """Process the drawing event."""
        self.canvas.SetCurrent()
        if not self._GLinitialized:
            glClearColor(1, 1, 1, 1)
            self._GLinitialized = True
        self._OnDraw()
        event.Skip()

    def _OnDraw(self, *args, **kwargs):
        "Draw the window."
        glClear(GL_COLOR_BUFFER_BIT)
        # Drawing an example triangle in the middle of the screen
        glBegin(GL_TRIANGLES)
        glColor(0, 0, 0)
        glVertex(-.25, -.25)
        glVertex(.25, -.25)
        glVertex(0, .25)
        glEnd()
        self.canvas.SwapBuffers()

app = wx.PySimpleApp()
frame = GLFrame(None, -1, 'GL Window')
frame.Show()
if __name__ == '__main__':
    app.MainLoop()
    app.Destroy()