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#!/usr/bin/env python
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"""Simple GLUT example to manually test event loop integration.
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This is meant to run tests manually in ipython as:
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In [5]: %gui glut
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In [6]: %run gui-glut.py
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In [7]: gl.glClearColor(1,1,1,1)
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"""
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#!/usr/bin/env python
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import sys
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import OpenGL.GL as gl
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import OpenGL.GLUT as glut
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def close():
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glut.glutDestroyWindow(glut.glutGetWindow())
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def display():
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gl.glClear (gl.GL_COLOR_BUFFER_BIT | gl.GL_DEPTH_BUFFER_BIT)
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glut.glutSwapBuffers()
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def resize(width,height):
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gl.glViewport(0, 0, width, height+4)
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gl.glMatrixMode(gl.GL_PROJECTION)
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gl.glLoadIdentity()
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gl.glOrtho(0, width, 0, height+4, -1, 1)
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gl.glMatrixMode(gl.GL_MODELVIEW)
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if glut.glutGetWindow() > 0:
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interactive = True
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glut.glutInit(sys.argv)
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glut.glutInitDisplayMode(glut.GLUT_DOUBLE |
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glut.GLUT_RGBA |
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glut.GLUT_DEPTH)
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else:
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interactive = False
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glut.glutCreateWindow('gui-glut')
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glut.glutDisplayFunc(display)
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glut.glutReshapeFunc(resize)
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# This is necessary on osx to be able to close the window
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# (else the close button is disabled)
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if sys.platform == 'darwin' and not bool(glut.HAVE_FREEGLUT):
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glut.glutWMCloseFunc(close)
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gl.glClearColor(0,0,0,1)
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if not interactive:
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glut.glutMainLoop()
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