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#!
# This is statement is required by the build system to query build info
if __name__ == '__build__':
raise Exception
'''
double.c from the Redbook examples.
Converted to Python by Jason L. Petrone 6/00
/*
* Copyright(c) 1993-1997, Silicon Graphics, Inc.
* ALL RIGHTS RESERVED
* Permission to use, copy, modify, and distribute this software for
* any purpose and without fee is hereby granted, provided that the above
* copyright notice appear in all copies and that both the copyright notice
* and this permission notice appear in supporting documentation, and that
* the name of Silicon Graphics, Inc. not be used in advertising
* or publicity pertaining to distribution of the software without specific,
* written prior permission.
*
* THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
* AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
* FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
* GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
* SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
* KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
* LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
* THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
* ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
* POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
*
* US Government Users Restricted Rights
* Use, duplication, or disclosure by the Government is subject to
* restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
*(c)(1)(ii) of the Rights in Technical Data and Computer Software
* clause at DFARS 252.227-7013 and/or in similar or successor
* clauses in the FAR or the DOD or NASA FAR Supplement.
* Unpublished-- rights reserved under the copyright laws of the
* United States. Contractor/manufacturer is Silicon Graphics,
* Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
*
* OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
*/
'''
'''
/*
* double.c
* This is a simple double buffered program.
* Pressing the left mouse button rotates the rectangle.
* Pressing the middle mouse button stops the rotation.
*/
'''
import sys
try:
from OpenGL.GLUT import *
from OpenGL.GL import *
from OpenGL.GLU import *
except:
print '''
ERROR: PyOpenGL not installed properly.
'''
sys.exit()
spin = 0.0
def display():
glClear(GL_COLOR_BUFFER_BIT)
glPushMatrix()
glRotatef(spin, 0.0, 0.0, 1.0)
glColor3f(1.0, 1.0, 1.0)
glRectf(-25.0, -25.0, 25.0, 25.0)
glPopMatrix()
glutSwapBuffers()
def spinDisplay():
global spin
spin = spin + 2.0
if(spin > 360.0):
spin = spin - 360.0
glutPostRedisplay()
def init():
glClearColor(0.0, 0.0, 0.0, 0.0)
glShadeModel(GL_FLAT)
def reshape(w, h):
glViewport(0, 0, w, h)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
glOrtho(-50.0, 50.0, -50.0, 50.0, -1.0, 1.0)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
def mouse(button, state, x, y):
if button == GLUT_LEFT_BUTTON:
if(state == GLUT_DOWN):
glutIdleFunc(spinDisplay)
elif button == GLUT_MIDDLE_BUTTON or button == GLUT_RIGHT_BUTTON:
if(state == GLUT_DOWN):
glutIdleFunc(None)
# Request double buffer display mode.
# Register mouse input callback functions
glutInit(sys.argv)
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)
glutInitWindowSize(250, 250)
glutInitWindowPosition(100, 100)
glutCreateWindow('Double')
init()
glutDisplayFunc(display)
glutReshapeFunc(reshape)
glutMouseFunc(mouse)
glutMainLoop()
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