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#!/usr/bin/env python
#
# This program is based on cone.py that comes with with PyGTK.
#
# Conversion from gtk.gl module to PyGtkGLExt by Naofumi Yasufuku
#
import sys
import pygtk
pygtk.require('2.0')
import gtk
import gtk.gtkgl
from OpenGL.GL import *
from OpenGL.GLU import *
rotx = 0
roty = 0
is_solid = False
def realize(glarea):
# get GLContext and GLDrawable
glcontext = glarea.get_gl_context()
gldrawable = glarea.get_gl_drawable()
# GL calls
if not gldrawable.gl_begin(glcontext): return
glClearColor(0.0, 0.0, 0.0, 0.0)
glClearDepth(1.0)
glMaterial(GL_FRONT, GL_AMBIENT, [0.2, 0.2, 0.2, 1.0])
glMaterial(GL_FRONT, GL_DIFFUSE, [0.8, 0.8, 0.8, 1.0])
glMaterial(GL_FRONT, GL_SPECULAR, [1.0, 0.0, 1.0, 1.0])
glMaterial(GL_FRONT, GL_SHININESS, 50.0)
glLight(GL_LIGHT0, GL_AMBIENT, [0.0, 1.0, 0.0, 1.0])
glLight(GL_LIGHT0, GL_DIFFUSE, [1.0, 1.0, 1.0, 1.0])
glLight(GL_LIGHT0, GL_SPECULAR, [1.0, 1.0, 1.0, 1.0])
glLight(GL_LIGHT0, GL_POSITION, [1.0, 1.0, 1.0, 0.0])
glLightModel(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)
gldrawable.gl_end()
def configure_event(glarea, event):
# get GLContext and GLDrawable
glcontext = glarea.get_gl_context()
gldrawable = glarea.get_gl_drawable()
# GL calls
if not gldrawable.gl_begin(glcontext): return
x, y, width, height = glarea.get_allocation()
glViewport(0, 0, width, height)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
if width > height:
w = float(width) / float(height)
glFrustum(-w, w, -1.0, 1.0, 5.0, 60.0)
else:
h = float(height) / float(width)
glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0)
glMatrixMode(GL_MODELVIEW)
gldrawable.gl_end()
return True
def expose_event(glarea, event):
# get GLContext and GLDrawable
glcontext = glarea.get_gl_context()
gldrawable = glarea.get_gl_drawable()
# GL calls
if not gldrawable.gl_begin(glcontext): return
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
glTranslate(0, 0, -10)
glRotate(rotx, 1, 0, 0)
glRotate(roty, 0, 1, 0)
gtk.gdkgl.draw_teapot(is_solid, 1)
if gldrawable.is_double_buffered():
gldrawable.swap_buffers()
else:
glFlush()
gldrawable.gl_end()
return True
def vchanged(vadj, glarea):
global rotx
rotx = vadj.value
glarea.window.invalidate_rect(glarea.allocation, False)
def hchanged(hadj, glarea):
global roty
roty = hadj.value
glarea.window.invalidate_rect(glarea.allocation, False)
def toggled(button, glarea):
global is_solid
is_solid = not is_solid
glarea.window.invalidate_rect(glarea.allocation, False)
#
# GLX version
#
major, minor = gtk.gdkgl.query_version()
print "GLX version = %d.%d" % (major, minor)
#
# frame buffer configuration
#
# use GLUT-style display mode bitmask
try:
# try double-buffered
glconfig = gtk.gdkgl.Config(mode = gtk.gdkgl.MODE_RGB |
gtk.gdkgl.MODE_DOUBLE |
gtk.gdkgl.MODE_DEPTH)
except gtk.gdkgl.NoMatches:
# try single-buffered
glconfig = gtk.gdkgl.Config(mode = gtk.gdkgl.MODE_RGB |
gtk.gdkgl.MODE_DEPTH)
# use GLX-style attribute list
# try:
# # try double-buffered
# glconfig = gtk.gdkgl.Config(attrib_list = (gtk.gdkgl.RGBA,
# gtk.gdkgl.DOUBLEBUFFER,
# gtk.gdkgl.DEPTH_SIZE, 1))
# except gtk.gdkgl.NoMatches:
# # try single-buffered
# glconfig = gtk.gdkgl.Config(attrib_list = (gtk.gdkgl.RGBA,
# gtk.gdkgl.DEPTH_SIZE, 1))
print "glconfig.is_rgba() =", glconfig.is_rgba()
print "glconfig.is_double_buffered() =", glconfig.is_double_buffered()
print "glconfig.has_depth_buffer() =", glconfig.has_depth_buffer()
# get_attrib()
print "gtk.gdkgl.RGBA = %d" % glconfig.get_attrib(gtk.gdkgl.RGBA)
print "gtk.gdkgl.DOUBLEBUFFER = %d" % glconfig.get_attrib(gtk.gdkgl.DOUBLEBUFFER)
print "gtk.gdkgl.DEPTH_SIZE = %d" % glconfig.get_attrib(gtk.gdkgl.DEPTH_SIZE)
#
# top-level gtk.Window
#
win = gtk.Window()
win.set_title("Teapot")
if sys.platform != 'win32':
win.set_resize_mode(gtk.RESIZE_IMMEDIATE)
win.set_reallocate_redraws(True)
win.connect('destroy', gtk.main_quit)
#
# gtk.Table
#
table = gtk.Table(3, 2)
table.set_border_width(5)
table.set_col_spacings(5)
table.set_row_spacings(5)
win.add(table)
table.show()
#
# gtk.DrawingArea for OpenGL scene
#
glarea = gtk.gtkgl.DrawingArea(glconfig)
glarea.set_size_request(300, 300)
glarea.connect_after('realize', realize)
glarea.connect('configure_event', configure_event)
glarea.connect('expose_event', expose_event)
table.attach(glarea, 0, 1, 0, 1)
glarea.show()
#
# rotation sliders
#
vadj = gtk.Adjustment(0, -360, 360, 5, 5, 0)
vadj.connect('value_changed', vchanged, glarea)
vscale = gtk.VScale(vadj)
table.attach(vscale, 1, 2, 0, 1, xoptions=gtk.FILL)
vscale.show()
hadj = gtk.Adjustment(0, -360, 360, 5, 5, 0)
hadj.connect('value_changed', hchanged, glarea)
hscale = gtk.HScale(hadj)
table.attach(hscale, 0, 1, 1, 2, yoptions=gtk.FILL)
hscale.show()
#
# toggle button
#
button = gtk.ToggleButton("solid")
button.connect('toggled', toggled, glarea)
table.attach(button, 0, 2, 2, 3, gtk.FILL, gtk.FILL)
button.show()
#
# main loop
#
win.show()
gtk.main()
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