def mainloop(canvas):
global win, fonts, fullscreen, batch
#if a maxsize is given, use it
if canvas.maxsize:
mw, mh = [int(x.strip()) for x in canvas.maxsize.split(',')]
win.set_maximum_size(mw, mh)
#or use the given value
else:
mw, mh = canvas.width, canvas.height
#if the given size is too big, resize to the biggest allowed
if canvas.width > mw or canvas.height > mh:
win.set_size(mw, mh)
#or just use what they passed
else:
win.set_size(canvas.width, canvas.height)
# if the canvas has the fullscreen attribute set make it fullsize
if canvas._elem.getAttribute('fullscreen').lower() == 'true':
toggleFullscreen(True)
#set the window's events to go to the right methods in Event.py
win.on_key_press = Events.on_key_press
win.on_resize = ReSizeGLScene
win.on_mouse_press = Events.on_mouse_press
win.on_mouse_release = Events.on_mouse_release
win.on_mouse_drag = Events.on_mouse_drag
win.on_mouse_scroll = Events.on_mouse_scroll
win.on_key_release = Events.on_key_release
#! EXPERMENTAL and currently disabled because it's too slow
#win.on_mouse_motion = Events.on_mouse_motion
#retrieve the color of the canvas to use, or white by default
cr, cg, cb = Helpers.HTMLColorToRGB(getattr(canvas, 'bgcolor', False) or "0xffffff")
#set up some GL stuff..
glClearColor(cr, cg, cb, 1.0) # This will clear the background color to what the canvas is
glEnable(GL_BLEND) # Enables alpha blending
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) #does something! really!
#enact the FPS cap (canvas.framerate)
canvas.framerate = int(canvas.framerate)
#schedule the animation routine to run each frame
pyglet.clock.schedule_interval(Animation.doAnimations, 1./canvas.framerate)
#we are done loading, show the window
win.set_visible(True)
#Traverse the Dom and register views with the VBO screen manager
ViewProjector.register(canvas, batch)
#run the pyglet main loop, sit back, and enjoy!
pyglet.app.run()
