glglue

glglue is the glue code which mediates between OpenGL and some GUI

Requirements

Python 2.7
Python 3.2

Features

glut window
tkinter’s togl widget
wxPython’s GLCanvas widget(wxPython for python3 is not exist)
pyQt4’s qgl widget
win32api wgl

Site

Controller convention

You should implement Controller class that has follow methods.

onUpdate
onLeftDown
onLeftUp
onMiddleDown
onMiddleUp
onRightDown
onRightUp
onMotion
onResize
onWheel
onKeyDown
draw

example

# coding: utf-8
from OpenGL.GL import *


class Controller(object):
    def __init__(self):
        pass

    def onResize(self, w, h):
        glViewport(0, 0, w, h)

    def onLeftDown(self, x, y):
        print 'onLeftDown', x, y

    def onLeftUp(self, x, y):
        print 'onLeftUp', x, y

    def onMiddleDown(self, x, y):
        print 'onMiddleDown', x, y

    def onMiddleUp(self, x, y):
        print 'onMiddleUp', x, y

    def onRightDown(self, x, y):
        print 'onRightDown', x, y

    def onRightUp(self, x, y):
        print 'onRightUp', x, y

    def onMotion(self, x, y):
        print 'onMotion', x, y

    def onWheel(self, d):
        print 'onWheel', d

    def onKeyDown(self, keycode):
        print 'onKeyDown', keycode

    def onUpdate(self, d):
        print 'onUpdate', d

    def draw(self):
        glClearColor(0.9, 0.5, 0.0, 0.0)
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)

        glBegin(GL_TRIANGLES)
        glVertex(-1.0,-1.0)
        glVertex( 1.0,-1.0)
        glVertex( 0.0, 1.0)
        glEnd()

        glFlush()


if __name__=="__main__":
    controller=Controller()
    import glglue.glut
    glglue.glut.mainloop(controller, width=640, height=480, title="sample")
    #import glglue.wgl
    #glglue.wgl.mainloop(controller, width=640, height=480, title="sample")

Samples

glut

requrie pyOpenGL + glut install

glut install on Windows

download glut-3.7.6-bin.zip from http://user.xmission.com/~nate/glut.html
copy glut32.dll to C:/PythonXX/

import glglue.sample
import glglue.glut

if __name__=="__main__":
    controller=glglue.sample.SampleController()
    glglue.glut.mainloop(controller)

tkinter

requrie pyOpenGL + togl install

Togl install on Windows

download Togl2.0-8.4-Windows.zip from http://sourceforge.net/projects/togl/files/Togl/2.0/
copy Togl2.0-8.4-Windows/lib/Togl2.0 to C:/PythonXX/tcl/Togl2.0

import sys
import Tkinter as tkinter
import glglue.togl
import glglue.sample
class Frame(tkinter.Frame):
    def __init__(self, width, height, master=None, **kw):
        #super(Frame, self).__init__(master, **kw)
        tkinter.Frame.__init__(self, master, **kw)
        # setup opengl widget
        self.controller=glglue.sample.SampleController()
        self.glwidget=glglue.togl.Widget(
                self, self.controller, width=width, height=height)
        self.glwidget.pack(fill=tkinter.BOTH, expand=True)
        # event binding(require focus)
        self.bind('<Key>', self.onKeyDown)
        self.bind('<MouseWheel>', lambda e: self.glworld.onWheel(-e.delta) and self.glwidget.onDraw())

    def onKeyDown(self, event):
        key=event.keycode
        if key==27:
            # Escape
            sys.exit()
        if key==81:
            # q
            sys.exit()
        else:
            print("keycode: %d" % key)

f = Frame(width=600, height=600)
f.pack(fill=tkinter.BOTH, expand=True)
f.focus_set()
f.mainloop()

wxPython

require pyOpenGL + wxPython

import wx
import glglue.sample
import glglue.wxglcanvas
class Frame(wx.Frame):
    def __init__(self, parent, **kwargs):
        super(Frame, self).__init__(parent, **kwargs)
        # setup opengl widget
        self.controller=glglue.sample.SampleController()
        self.glwidget=glglue.wxglcanvas.Widget(self, self.controller)
        # packing
        sizer=wx.BoxSizer(wx.HORIZONTAL)
        self.SetSizer(sizer)
        sizer.Add(self.glwidget, 1, wx.EXPAND)

app = wx.App(False)
frame=Frame(None, title='glglue')
frame.Show()
app.MainLoop()

pyQt4

require pyOpenGL + pyQt4

from PyQt4 import Qt
import glglue.sample
import glglue.qgl
class Window(Qt.QWidget):
    def __init__(self, parent=None):
        Qt.QWidget.__init__(self, parent)
        # setup opengl widget
        self.controller=glglue.sample.SampleController()
        self.glwidget=glglue.qgl.Widget(self, self.controller)
        # packing
        mainLayout = Qt.QHBoxLayout()
        mainLayout.addWidget(self.glwidget)
        self.setLayout(mainLayout)

import sys
app = Qt.QApplication(sys.argv)
window = Window()
window.show()
sys.exit(app.exec_())

pyGame

require pyOpenGL + pyGame

import pygame
from pygame.locals import *
import glglue.sample

if __name__=="__main__":
    pygame.init()
    size=(640, 480)
    screen = pygame.display.set_mode(size,
            HWSURFACE | OPENGL | DOUBLEBUF)

    controller=glglue.sample.SampleController()
    controller.onResize(*size)

    clock = pygame.time.Clock()
    is_running=True
    while is_running:
        # event handling
        for event in pygame.event.get():
            if event.type == QUIT:
                is_running=False
            if event.type == KEYUP and event.key == K_ESCAPE:
                is_running=False
        pressed = pygame.key.get_pressed()

        time_passed = clock.tick()

        # Show the screen
        controller.draw()
        pygame.display.flip()

win32api

require pyOpenGL + pywin32(win32con)

pywin32(win32con) install on Windows

download pywin32-xxx.exe from http://sourceforge.net/projects/pywin32/files/pywin32/
execute installer

import glglue.sample
import glglue.wgl

if __name__=="__main__":
    factory=glglue.wgl.WindowFactory()
    window=factory.create(glglue.wgl.Window, title="sample")
    window.createGLContext(16)
    window.controller=glglue.sample.SampleController()
    window.show()
    import sys
    sys.exit(factory.loop())

short smaple

import glglue.sample
import glglue.wgl

if __name__=="__main__":
    controller=glglue.sample.SampleController()
    glglue.wgl.mainloop(controller, width=640, height=480, title="sample")

History

20120126 0.2.5 use glutIdleFunc for glut animation
20120125 0.2.4 add wgl/sdl animation
20120124 0.2.3 add glut animation
20120123 0.2.2 add glut width, height prameter
20120119 0.2.0 python3 support
20120119 0.1.3 add SetFocus when mouseDown on wxglcanvas
20120115 0.1.2 update README. add MANIFEST.in
20120114 0.1.1 update README
20120114 0.1.0 implement wxglcanvas mouse event and keyboard event handling
20120113 0.0.9 fix wxglcanvas
20120112 0.0.8 fix lacking of README.rst
20111230 0.0.7 add wgl.mainloop, implement wgl mouse callback
20111230 0.0.4 fix SetWindowLongPtr
20111229 0.0.3 include glglue.sample. add wgl

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