def __init__(clock=None, framerate=None, backend=None):
""" Initialize the main loop
Parameters
----------
clock : Clock
clock to use to run the app (gives the elementary tick)
framerate : int
frames per second
backend : python module
Backend module
"""
global __clock__
options = parser.get_options()
if options.debug:
log.setLevel(logging.DEBUG)
if framerate is None:
framerate = options.framerate
if framerate > 0:
log.info("Running at %d frames/second" % framerate)
else:
log.info("Running at full speed")
if clock is None:
__clock__ = _clock.get_default()
else:
__clock__ = clock
__clock__.set_fps_limit(framerate)
# OpenGL Initialization
gl.glPixelStorei(gl.GL_UNPACK_ALIGNMENT, 1)
gl.glPixelStorei(gl.GL_PACK_ALIGNMENT, 1)
gl.glEnable(gl.GL_VERTEX_PROGRAM_POINT_SIZE)
gl.glEnable(gl.GL_POINT_SPRITE)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
# Initialize timers for all windows
for window in backend.windows():
window._clock = __clock__
# Start timers
for i in range(len(window._timer_stack)):
handler, interval = window._timer_stack[i]
__clock__.schedule_interval(handler, interval)
# Dispatch init event
window.dispatch_event('on_init')
# Dispatch an initial resize event
window.dispatch_event('on_resize', window._width, window._height)
return __clock__
def __init__(self, size=(800,600), position=(0,0), anchor=(0,0), aspect=None):
"""
Create a new viewport with requested size and position.
Parameters
----------
size: tuple as ([int,float], [int,float])
Requested size.
May be absolute (pixel) or relative to the parent (percent).
Positive or negative values are accepted.
position: tuple as ([int,float], [int,float])
Requested position.
May be absolute (pixel) or relative to the parent (percent).
Positive or negative values are accepted.
anchor: tuple as ([int,float], [int,float]) or string
Anchor point for positioning.
May be absolute (pixel) or relative (percent).
Positive or negative values are accepted.
aspect: float
Aspect (width/height) to be enforced.
"""
self._parent = None
self._children = []
self._active_viewports = []
self._dispatcher = ViewportDispatcher()
# Aspect ratio (width/height)
self._aspect = aspect
if aspect:
log.info("Enforcing viewport aspect ratio (%g)" % aspect)
# Anchor point for placement
self._anchor = anchor
# Requested size & position (may be honored or not, depending on parent)
# (relative or absolute coordinates)
self._requested_size = size
self._requested_position = position
# Clipped size & position (used for glScissor)
# (absolute coordinates)
self._scissor_size = size
self._scissor_position = position
# Viewport size & position (used for glViewport)
# (absolute coordinates)
self._viewport_size = size
self._viewport_position = position
# Wheter viewport is active (cursor is inside)
self._active = False
# Viewport id
self._id = Viewport._idcount
Viewport._idcount += 1
def _fetch_file(filename):
"""
Fetch a font file from a remote data server
Available servers:
* https://github.com/glumpy/glumpy-font/raw/master/Fonts
* https://github.com/glumpy/glumpy-data/raw/master/Data
"""
local_directory = os.path.dirname(__file__) or '.'
local_file = os.path.join(local_directory, filename)
if os.path.isfile(local_file):
return local_file
extension = os.path.basename(filename).split('.')[-1]
# Font server
if extension in ['ttf', 'otf']:
server = "https://github.com/glumpy/glumpy-font/raw/master/Fonts"
# Data server
else:
server = "https://github.com/glumpy/glumpy-data/raw/master/Data"
filename = os.path.basename(filename)
remote = os.path.join(server, filename)
# Build url request
log.info('Requesting "%s" from remote server' % filename)
try:
response = request.urlopen(remote)
except:
log.warning('Data not available on remote server')
return None
# Fetch symlink data (font location)
symlink = response.read().decode()
remote = os.path.join(server, symlink)
response = request.urlopen(remote)
# Fetch data
size = response.headers['Content-Length'].strip()
log.info('Fetching data (%s bytes) to "%s"' % (size, local_file))
with open(local_file, 'wb') as fp:
fp.write(response.read())
return local_file
def _fetch_file(filename):
"""
Fetch a font file from a remote data server
Available servers:
* https://github.com/glumpy/glumpy-font/raw/master/Fonts
* https://github.com/glumpy/glumpy-data/raw/master/Data
"""
local_directory = os.path.dirname(__file__) or '.'
local_file = os.path.join(local_directory, filename)
if os.path.isfile(local_file):
return local_file
extension = os.path.basename(filename).split('.')[-1]
# Font server
if extension in ['ttf', 'otf']:
server = "https://github.com/glumpy/glumpy-font/raw/master/Fonts"
# Data server
else:
server = "https://github.com/glumpy/glumpy-data/raw/master/Data"
filename = os.path.basename(filename)
remote = os.path.join(server, filename)
# Build url request
log.info('Requesting "%s" from remote server' % filename)
try:
response = request.urlopen(remote)
except:
log.warning('Data not available on remote server')
return None
# Fetch symlink data (font location)
symlink = response.read().decode()
remote = os.path.join(server, symlink)
response = request.urlopen(remote)
# Fetch data
size = response.headers['Content-Length'].strip()
log.info('Fetching data (%s bytes) to "%s"' % (size, local_file))
with open(local_file, 'wb') as fp:
fp.write(response.read())
return local_file
def __init__(self,
size=(800, 600),
position=(0, 0),
anchor=(0, 0),
aspect=None):
"""
Create a new viewport with requested size and position.
Parameters
----------
"""
self._parent = None
self._children = []
self._active_viewports = []
self._dispatcher = ViewportDispatcher()
# Aspect ratio (width/height)
self._aspect = aspect
if aspect:
log.info("Enforcing viewport aspect ratio (%g)" % aspect)
# Anchor point for placement
self._anchor = anchor
# Requested size & position (may be honored or not, depending on parent)
# (relative or absolute coordinates)
self._requested_size = size
self._requested_position = position
# Clipped size & position (used for glScissor)
# (absolute coordinates)
self._scissor_size = size
self._scissor_position = position
# Viewport size & position (used for glViewport)
# (absolute coordinates)
self._viewport_size = size
self._viewport_position = position
# Wheter viewport is active (cursor is inside)
self._active = False
# Viewport id
self._id = Viewport._idcount
Viewport._idcount += 1
def __init__(self, size=(800,600), position=(0,0), anchor=(0,0), aspect=None):
"""
Create a new viewport with requested size and position.
Parameters
----------
"""
self._parent = None
self._children = []
self._active_viewports = []
self._dispatcher = ViewportDispatcher()
# Aspect ratio (width/height)
self._aspect = aspect
if aspect:
log.info("Enforcing viewport aspect ratio (%g)" % aspect)
# Anchor point for placement
self._anchor = anchor
# Requested size & position (may be honored or not, depending on parent)
# (relative or absolute coordinates)
self._requested_size = size
self._requested_position = position
# Clipped size & position (used for glScissor)
# (absolute coordinates)
self._scissor_size = size
self._scissor_position = position
# Viewport size & position (used for glViewport)
# (absolute coordinates)
self._viewport_size = size
self._viewport_position = position
# Wheter viewport is active (cursor is inside)
self._active = False
# Viewport id
self._id = Viewport._idcount
Viewport._idcount += 1
def run(clock=None,
framerate=None,
interactive=None,
duration=sys.maxsize,
framecount=sys.maxsize):
""" Run the main loop
Parameters
----------
clock : Clock
clock to use to run the app (gives the elementary tick)
framerate : int
frames per second
duration : float
Duration after which the app will be stopped
framecount : int
Number of frame to display before stopping.
"""
global __running__
clock = __init__(clock=clock, framerate=framerate, backend=__backend__)
options = parser.get_options()
if interactive is None:
interactive = options.interactive
if interactive:
# Set interactive python session
os.environ['PYTHONINSPECT'] = '1'
import readline
readline.parse_and_bind("tab: complete")
def run():
while not stdin_ready():
__backend__.process(clock.tick())
return 0
inputhook_manager.set_inputhook(run)
else:
__running__ = True
def run(duration, framecount):
count = len(__backend__.windows())
while count and duration > 0 and framecount > 0 and __running__:
dt = clock.tick()
duration -= dt
framecount -= 1
count = __backend__.process(dt)
if options.record:
from .movie import record
# Obtain the name of the script that is being run
name = os.path.basename(sys.argv[0])
# Replace .py extension with .mp4
filename = re.sub('.py$', '.mp4', name)
log.info("Recording movie in '%s'" % filename)
with record(window=__backend__.windows()[0],
filename=filename,
fps=60):
run(duration, framecount)
else:
run(duration, framecount)
def __new__(cls, *args, **kwargs):
global __backend__
all = list(backends.__backends__)
options = parser.get_options()
# No backend was specified
# Check for command line argument then pick a default one if possible
if __backend__ is None:
if options.backend != all[0]:
all = [
options.backend,
] + all
for name in all:
backend = use(name)
if backend and backend.available():
__backend__ = backend
break
# No backend available, there's nothing we can do
if __backend__ is None:
log.critical("No suitable backend found")
raise NotImplementedError
config = configuration.get_default()
if "config" not in kwargs.keys():
kwargs['config'] = config
# Get command line size
# if options.size:
# size = options.size.split(",")
# kwargs['width'] = int(size[0])
# kwargs['height'] = int(size[1])
# else:
# kwargs['width'] = kwargs.get('width', 512)
# kwargs['height'] = kwargs.get('height', 512)
# Get command line position
# if options.position:
# position = options.position.split(",")
# #kwargs['x'] = kwargs.get('x', int(position[0]))
# #kwargs['y'] = kwargs.get('y', int(position[1]))
# else:
# pass
# #kwargs['x'] = kwargs.get('x', 0)
# #kwargs['y'] = kwargs.get('y', 0)
# Create the backend window
window = __backend__.Window(*args, **kwargs)
window._backend = __backend__
config = configuration.gl_get_configuration()
window._config = config
log.info("Using %s (%s %d.%d)" %
(__backend__.name(), config.api, config.major_version,
config.minor_version))
# Display fps options
if options.display_fps:
@window.timer(1.0)
def timer(elapsed):
print("Estimated FPS: %f" % fps())
return window
# Distributed under the (new) BSD License.
# -----------------------------------------------------------------------------
from glumpy import app
from glumpy.log import log
from glumpy.graphics.text import FontManager
from glumpy.graphics.collections import GlyphCollection
from glumpy.transforms import Position, OrthographicProjection, Viewport
window = app.Window(width=1200, height=800, color=(1, 1, 1, 1))
@window.event
def on_draw(dt):
window.clear()
labels.draw()
labels = GlyphCollection('agg', transform=OrthographicProjection(Position()))
text = "The quick brown fox jumps over the lazy dog"
x, y, z = 2, window.height, 0
log.info("Caching texture fonts")
for i in range(6, 54, 2):
font = FontManager.get("OpenSans-Regular.ttf", size=i, mode='agg')
y -= i * 1.1
labels.append(text, font, origin=(x, y, z), anchor_x="left")
window.attach(labels["transform"])
window.attach(labels["viewport"])
app.run()
def run(clock=None, framerate=None, interactive=None,
duration = sys.maxsize, framecount = sys.maxsize):
""" Run the main loop
Parameters
----------
clock : Clock
clock to use to run the app (gives the elementary tick)
framerate : int
frames per second
duration : float
Duration after which the app will be stopped
framecount : int
Number of frame to display before stopping.
"""
global __running__
clock = __init__(clock=clock, framerate=framerate, backend=__backend__)
options = parser.get_options()
if interactive is None:
interactive = options.interactive
if interactive:
# Set interactive python session
os.environ['PYTHONINSPECT'] = '1'
import readline
readline.parse_and_bind("tab: complete")
def run():
while not stdin_ready():
__backend__.process(clock.tick())
return 0
inputhook_manager.set_inputhook(run)
else:
__running__ = True
def run(duration, framecount):
count = len(__backend__.windows())
while count and duration > 0 and framecount > 0 and __running__:
dt = clock.tick()
duration -= dt
framecount -= 1
count = __backend__.process(dt)
if options.record:
from .movie import record
# Obtain the name of the script that is being run
name = os.path.basename(sys.argv[0])
# Replace .py extension with .mp4
filename=re.sub('.py$', '.mp4', name)
log.info("Recording movie in '%s'" % filename)
with record(window=__backend__.windows()[0],
filename=filename,
fps=60):
run(duration, framecount)
else:
run(duration, framecount)
def __init__(clock=None, framerate=None, backend=None):
""" Initialize the main loop
Parameters
----------
clock : Clock
clock to use to run the app (gives the elementary tick)
framerate : int
frames per second
backend : python module
Backend module
"""
global __clock__
options = parser.get_options()
if options.debug:
log.setLevel(logging.DEBUG)
if framerate is None:
framerate = options.framerate
if framerate > 0:
log.info("Running at %d frames/second" % framerate)
else:
log.info("Running at full speed")
if clock is None:
__clock__ = _clock.get_default()
else:
__clock__ = clock
__clock__.set_fps_limit(framerate)
# OpenGL Initialization
for window in backend.windows():
window.activate()
gl.glPixelStorei(gl.GL_UNPACK_ALIGNMENT, 1)
gl.glPixelStorei(gl.GL_PACK_ALIGNMENT, 1)
gl.glEnable(gl.GL_VERTEX_PROGRAM_POINT_SIZE)
gl.glEnable(gl.GL_POINT_SPRITE)
gl.glEnable(gl.GL_BLEND)
gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA)
# Initialize timers for all windows
for window in backend.windows():
window._clock = __clock__
# Start timers
for i in range(len(window._timer_stack)):
handler, interval = window._timer_stack[i]
__clock__.schedule_interval(handler, interval)
# Activate window
window.activate()
# Dispatch init event
window.dispatch_event('on_init')
# Dispatch an initial resize event
window.dispatch_event('on_resize', window._width, window._height)
return __clock__
def __new__(cls, *args, **kwargs):
global __backend__
all = list(backends.__backends__)
options = parser.get_options()
# No backend was specified
# Check for command line argument then pick a default one if possible
if __backend__ is None:
if options.backend != all[0]:
all = [options.backend,] + all
for name in all:
backend = use(name)
if backend and backend.available():
__backend__ = backend
break
# No backend available, there's nothing we can do
if __backend__ is None:
log.critical("No suitable backend found")
raise NotImplementedError
config = configuration.get_default()
if "config" not in kwargs.keys():
kwargs['config'] = config
# Get command line size
# if options.size:
# size = options.size.split(",")
# kwargs['width'] = int(size[0])
# kwargs['height'] = int(size[1])
# else:
# kwargs['width'] = kwargs.get('width', 512)
# kwargs['height'] = kwargs.get('height', 512)
# Get command line position
# if options.position:
# position = options.position.split(",")
# #kwargs['x'] = kwargs.get('x', int(position[0]))
# #kwargs['y'] = kwargs.get('y', int(position[1]))
# else:
# pass
# #kwargs['x'] = kwargs.get('x', 0)
# #kwargs['y'] = kwargs.get('y', 0)
# Create the backend window
window = __backend__.Window(*args, **kwargs)
window._backend = __backend__
config = configuration.gl_get_configuration()
window._config = config
log.info("Using %s (%s %d.%d)" %
(__backend__.name(), config.api,
config.major_version, config.minor_version))
# Display fps options
if options.display_fps:
@window.timer(1.0)
def timer(elapsed):
print("Estimated FPS: %f"% fps())
return window
def run(clock=None,
framerate=None,
interactive=None,
duration=sys.maxint,
framecount=sys.maxint):
""" Run the main loop
Parameters
----------
clock : Clock
clock to use to run the app (gives the elementary tick)
framerate : int
frames per second
duration : float
Duration after which the app will be stopped
framecount : int
Number of frame to display before stopping.
"""
global __running__
clock = __init__(clock=clock, framerate=framerate, backend=__backend__)
options = parser.get_options()
if interactive is None:
interactive = options.interactive
writer = None
if options.record:
from glumpy.ext.ffmpeg_writer import FFMPEG_VideoWriter
framerate = 60
window = __backend__.windows()[0]
width, height = window.width, window.height
filename = "movie.mp4"
writer = FFMPEG_VideoWriter(filename, (width, height), fps=framerate)
fbuffer = np.zeros((height, width, 3), dtype=np.uint8)
data = fbuffer.copy()
log.info("Recording movie in '%s'" % filename)
if interactive:
# Set interactive python session
os.environ['PYTHONINSPECT'] = '1'
import readline
readline.parse_and_bind("tab: complete")
def run():
while not stdin_ready():
__backend__.process(clock.tick())
return 0
inputhook_manager.set_inputhook(run)
else:
__running__ = True
count = len(__backend__.windows())
while count and duration > 0 and framecount > 0 and __running__:
dt = clock.tick()
duration -= dt
framecount -= 1
count = __backend__.process(dt)
# Record one frame (if there is writer available)
if writer is not None:
gl.glReadPixels(0, 0, window.width, window.height, gl.GL_RGB,
gl.GL_UNSIGNED_BYTE, fbuffer)
data[...] = fbuffer[::-1, :, :]
writer.write_frame(data)
if writer is not None:
writer.close()
# Distributed under the (new) BSD License.
# -----------------------------------------------------------------------------
from glumpy import app
from glumpy.log import log
from glumpy.graphics.text import FontManager
from glumpy.graphics.collections import GlyphCollection
from glumpy.transforms import Position, OrthographicProjection, Viewport
window = app.Window(width=1200, height=800, color=(1, 1, 1, 1))
@window.event
def on_draw(dt):
window.clear()
labels.draw()
labels = GlyphCollection("agg", transform=OrthographicProjection(Position()))
text = "The quick brown fox jumps over the lazy dog"
x, y, z = 2, window.height, 0
log.info("Caching texture fonts")
for i in range(6, 54, 2):
font = FontManager.get("OpenSans-Regular.ttf", size=i, mode="agg")
y -= i * 1.1
labels.append(text, font, origin=(x, y, z), anchor_x="left")
window.attach(labels["transform"])
window.attach(labels["viewport"])
app.run()
def __init__( self, width=512, height=512, title=None, visible=True, aspect=None,
decoration=True, fullscreen=False, config=None, context=None, color=(0,0,0,1)):
window.Window.__init__(self, width=width,
height=height,
title=title,
visible=visible,
aspect=aspect,
decoration=decoration,
fullscreen=fullscreen,
config=config,
context=context,
color=color)
# Whether hidpi is active
self._hidpi = False
def on_error(error, message):
log.warning(message)
glfw.glfwSetErrorCallback(on_error)
glfw.glfwWindowHint(glfw.GLFW_RESIZABLE, True)
glfw.glfwWindowHint(glfw.GLFW_DECORATED, True)
glfw.glfwWindowHint(glfw.GLFW_VISIBLE, True)
if not decoration:
glfw.glfwWindowHint(glfw.GLFW_DECORATED, False)
if not visible:
glfw.glfwWindowHint(glfw.GLFW_VISIBLE, False)
if config is None:
config = configuration.Configuration()
set_configuration(config)
self._native_window = glfw.glfwCreateWindow( self._width, self._height,
self._title, None, None)
if not self._native_window:
log.critical("Window creation failed")
__exit__()
sys.exit()
glfw.glfwMakeContextCurrent(self._native_window)
glfw.glfwSwapInterval(0)
# OSX: check framebuffer size / window size. On retina display, they
# can be different so we try to correct window size such as having
# the framebuffer size of the right size
w,h = glfw.glfwGetFramebufferSize(self._native_window)
if w != width or h!= height:
width, height = width//2, height//2
glfw.glfwSetWindowSize(self._native_window, width, height)
log.info("HiDPI detected, fixing window size")
self._hidpi = True
def on_framebuffer_resize(win, width, height):
self._width, self._height = width, height
self.dispatch_event('on_resize', width, height)
glfw.glfwSetFramebufferSizeCallback(self._native_window, on_framebuffer_resize)
# def on_resize(win, width, height):
# self._width, self._height = width, height
# self.dispatch_event('on_resize', width, height)
# glfw.glfwSetWindowSizeCallback(self._native_window, on_resize)
def on_cursor_enter(win, entered):
if entered:
self.dispatch_event('on_enter')
else:
self.dispatch_event('on_leave')
glfw.glfwSetCursorEnterCallback(self._native_window, on_cursor_enter)
def on_window_close(win):
self.close()
glfw.glfwSetWindowCloseCallback(self._native_window, on_window_close)
def on_keyboard(win, key, scancode, action, mods):
symbol = self._keyboard_translate(key)
modifiers = self._modifiers_translate(mods)
if action in[glfw.GLFW_PRESS,glfw.GLFW_REPEAT]:
self.dispatch_event('on_key_press', symbol, modifiers)
else:
self.dispatch_event('on_key_release', symbol, modifiers)
glfw.glfwSetKeyCallback(self._native_window, on_keyboard)
def on_character(win, character):
self.dispatch_event('on_character', u"%c" % character)
glfw.glfwSetCharCallback(self._native_window, on_character)
def on_mouse_button(win, button, action, mods):
x,y = glfw.glfwGetCursorPos(win)
if self._hidpi:
x, y = 2*x, 2*y
button = __mouse_map__.get(button, window.mouse.UNKNOWN)
if action == glfw.GLFW_RELEASE:
self._button = window.mouse.NONE
self._mouse_x = x
self._mouse_y = y
self.dispatch_event('on_mouse_release', x, y, button)
elif action == glfw.GLFW_PRESS:
self._button = button
self._mouse_x = x
self._mouse_y = y
self.dispatch_event('on_mouse_press', x, y, button)
glfw.glfwSetMouseButtonCallback(self._native_window, on_mouse_button)
def on_mouse_motion(win, x, y):
if self._hidpi:
x, y = 2*x, 2*y
dx = x - self._mouse_x
dy = y - self._mouse_y
self._mouse_x = x
self._mouse_y = y
if self._button != window.mouse.NONE:
self.dispatch_event('on_mouse_drag', x, y, dx, dy, self._button)
else:
self.dispatch_event('on_mouse_motion', x, y, dx, dy)
glfw.glfwSetCursorPosCallback(self._native_window, on_mouse_motion)
def on_scroll(win, xoffset, yoffset):
x,y = glfw.glfwGetCursorPos(win)
if self._hidpi:
x, y = 2*x, 2*y
self.dispatch_event('on_mouse_scroll', x, y, xoffset, yoffset)
glfw.glfwSetScrollCallback( self._native_window, on_scroll )
self._width, self._height = self.get_size()
__windows__.append(self)
def __init__(self,
width=512,
height=512,
title=None,
visible=True,
aspect=None,
decoration=True,
fullscreen=False,
config=None,
context=None,
color=(0, 0, 0, 1),
vsync=False):
window.Window.__init__(self,
width=width,
height=height,
title=title,
visible=visible,
aspect=aspect,
decoration=decoration,
fullscreen=fullscreen,
config=config,
context=context,
color=color)
# Whether hidpi is active
self._hidpi = False
def on_error(error, message):
log.warning(message)
glfw.glfwSetErrorCallback(on_error)
glfw.glfwWindowHint(glfw.GLFW_RESIZABLE, True)
glfw.glfwWindowHint(glfw.GLFW_DECORATED, True)
glfw.glfwWindowHint(glfw.GLFW_VISIBLE, True)
if not decoration:
glfw.glfwWindowHint(glfw.GLFW_DECORATED, False)
if not visible:
glfw.glfwWindowHint(glfw.GLFW_VISIBLE, False)
if config is None:
config = configuration.Configuration()
set_configuration(config)
self._native_window = glfw.glfwCreateWindow(self._width, self._height,
self._title, None, None)
if not self._native_window:
log.critical("Window creation failed")
__exit__()
sys.exit()
glfw.glfwMakeContextCurrent(self._native_window)
glfw.glfwSwapInterval(1 if vsync else 0)
# OSX: check framebuffer size / window size. On retina display, they
# can be different so we try to correct window size such as having
# the framebuffer size of the right size
w, h = glfw.glfwGetFramebufferSize(self._native_window)
if w != width or h != height:
width, height = width // 2, height // 2
glfw.glfwSetWindowSize(self._native_window, width, height)
log.info("HiDPI detected, fixing window size")
self._hidpi = True
def on_framebuffer_resize(win, width, height):
self._width, self._height = width, height
self.dispatch_event('on_resize', width, height)
glfw.glfwSetFramebufferSizeCallback(self._native_window,
on_framebuffer_resize)
# def on_resize(win, width, height):
# self._width, self._height = width, height
# self.dispatch_event('on_resize', width, height)
# glfw.glfwSetWindowSizeCallback(self._native_window, on_resize)
def on_cursor_enter(win, entered):
if entered:
self.dispatch_event('on_enter')
else:
self.dispatch_event('on_leave')
glfw.glfwSetCursorEnterCallback(self._native_window, on_cursor_enter)
def on_window_close(win):
self.close()
glfw.glfwSetWindowCloseCallback(self._native_window, on_window_close)
def on_keyboard(win, key, scancode, action, mods):
symbol = self._keyboard_translate(key)
modifiers = self._modifiers_translate(mods)
if action in [glfw.GLFW_PRESS, glfw.GLFW_REPEAT]:
self.dispatch_event('on_key_press', symbol, modifiers)
else:
self.dispatch_event('on_key_release', symbol, modifiers)
glfw.glfwSetKeyCallback(self._native_window, on_keyboard)
def on_character(win, character):
self.dispatch_event('on_character', u"%c" % character)
glfw.glfwSetCharCallback(self._native_window, on_character)
def on_mouse_button(win, button, action, mods):
x, y = glfw.glfwGetCursorPos(win)
if self._hidpi:
x, y = 2 * x, 2 * y
button = __mouse_map__.get(button, window.mouse.UNKNOWN)
if action == glfw.GLFW_RELEASE:
self._button = window.mouse.NONE
self._mouse_x = x
self._mouse_y = y
self.dispatch_event('on_mouse_release', x, y, button)
elif action == glfw.GLFW_PRESS:
self._button = button
self._mouse_x = x
self._mouse_y = y
self.dispatch_event('on_mouse_press', x, y, button)
glfw.glfwSetMouseButtonCallback(self._native_window, on_mouse_button)
def on_mouse_motion(win, x, y):
if self._hidpi:
x, y = 2 * x, 2 * y
dx = x - self._mouse_x
dy = y - self._mouse_y
self._mouse_x = x
self._mouse_y = y
if self._button != window.mouse.NONE:
self.dispatch_event('on_mouse_drag', x, y, dx, dy,
self._button)
else:
self.dispatch_event('on_mouse_motion', x, y, dx, dy)
glfw.glfwSetCursorPosCallback(self._native_window, on_mouse_motion)
def on_scroll(win, xoffset, yoffset):
x, y = glfw.glfwGetCursorPos(win)
if self._hidpi:
x, y = 2 * x, 2 * y
self.dispatch_event('on_mouse_scroll', x, y, xoffset, yoffset)
glfw.glfwSetScrollCallback(self._native_window, on_scroll)
self._width, self._height = self.get_size()
__windows__.append(self)
def run(clock=None, framerate=None, interactive=None,
duration = sys.maxint, framecount = sys.maxint):
""" Run the main loop
Parameters
----------
clock : Clock
clock to use to run the app (gives the elementary tick)
framerate : int
frames per second
duration : float
Duration after which the app will be stopped
framecount : int
Number of frame to display before stopping.
"""
global __running__
clock = __init__(clock=clock, framerate=framerate, backend=__backend__)
options = parser.get_options()
if interactive is None:
interactive = options.interactive
writer = None
if options.record:
from glumpy.ext.ffmpeg_writer import FFMPEG_VideoWriter
framerate = 60
window = __backend__.windows()[0]
width, height = window.width, window.height
filename = "movie.mp4"
writer = FFMPEG_VideoWriter(filename, (width, height), fps=framerate)
fbuffer = np.zeros((height, width, 3), dtype=np.uint8)
data = fbuffer.copy()
log.info("Recording movie in '%s'" % filename)
if interactive:
# Set interactive python session
os.environ['PYTHONINSPECT'] = '1'
import readline
readline.parse_and_bind("tab: complete")
def run():
while not stdin_ready():
__backend__.process(clock.tick())
return 0
inputhook_manager.set_inputhook(run)
else:
__running__ = True
count = len(__backend__.windows())
while count and duration > 0 and framecount > 0 and __running__:
dt = clock.tick()
duration -= dt
framecount -= 1
count = __backend__.process(dt)
# Record one frame (if there is writer available)
if writer is not None:
gl.glReadPixels(0, 0, window.width, window.height,
gl.GL_RGB, gl.GL_UNSIGNED_BYTE, fbuffer)
data[...] = fbuffer[::-1,:,:]
writer.write_frame(data)
if writer is not None:
writer.close()