def __init__(self, queue=None, rqueue=None):
from tugalinhas.turtlescene import TurtleScene, TurtleView
super().__init__()
self._scene = TurtleScene()
self._view = TurtleView(self._scene)
self._layout = QtWidgets.QVBoxLayout(self)
self._layout.addWidget(self._view)
self.setMinimumSize(800, 600)
self._namespace = self._scene.getNamespace()
self._queue = queue
self._rqueue = rqueue
self.startTimer(1000 / 30)
def __init__(self, queue=None, rqueue=None):
from tugalinhas.turtlescene import TurtleScene, TurtleView
super().__init__()
self._scene = TurtleScene()
self._view = TurtleView(self._scene)
self._layout = QtWidgets.QVBoxLayout(self)
self._layout.addWidget(self._view)
self.setMinimumSize(800, 600)
self._namespace = self._scene.getNamespace()
self._queue = queue
self._rqueue = rqueue
self.startTimer(1000 / 30)
class _TurtleWindow(QtWidgets.QWidget):
"""
A turtle window that should be ran in a background subprocess.
We cannot use threads since Qt expects that the GUI runs in the main thread.
It communicates with the main process using a Queue of commands.
"""
_instance = None
def __new__(cls, queue=None, rqueue=None):
if cls._instance is None:
return super().__new__(cls, queue, rqueue)
else:
return cls._instance
def __init__(self, queue=None, rqueue=None):
from tugalinhas.turtlescene import TurtleScene, TurtleView
super().__init__()
self._scene = TurtleScene()
self._view = TurtleView(self._scene)
self._layout = QtWidgets.QVBoxLayout(self)
self._layout.addWidget(self._view)
self.setMinimumSize(800, 600)
self._namespace = self._scene.getNamespace()
self._queue = queue
self._rqueue = rqueue
self.startTimer(1000 / 30)
def timerEvent(self, timer):
if not self._queue.empty():
task = self._queue.get()
self.consume(task)
def keyPressEvent(self, ev):
key = ev.key()
modifiers = ev.modifiers()
def consume(self, task):
name, args, kwargs = task
if name.startswith('*'):
method = getattr(self._namespace, name[1:])
self._rqueue.put(method(*args, **kwargs))
else:
method = getattr(self._namespace, name)
method(*args, **kwargs)
class _TurtleWindow(QtWidgets.QWidget):
"""
A turtle window that should be ran in a background subprocess.
We cannot use threads since Qt expects that the GUI runs in the main thread.
It communicates with the main process using a Queue of commands.
"""
_instance = None
def __new__(cls, queue=None, rqueue=None):
if cls._instance is None:
return super().__new__(cls, queue, rqueue)
else:
return cls._instance
def __init__(self, queue=None, rqueue=None):
from tugalinhas.turtlescene import TurtleScene, TurtleView
super().__init__()
self._scene = TurtleScene()
self._view = TurtleView(self._scene)
self._layout = QtWidgets.QVBoxLayout(self)
self._layout.addWidget(self._view)
self.setMinimumSize(800, 600)
self._namespace = self._scene.getNamespace()
self._queue = queue
self._rqueue = rqueue
self.startTimer(1000 / 30)
def timerEvent(self, timer):
if not self._queue.empty():
task = self._queue.get()
self.consume(task)
def keyPressEvent(self, ev):
key = ev.key()
modifiers = ev.modifiers()
def consume(self, task):
name, args, kwargs = task
if name.startswith('*'):
method = getattr(self._namespace, name[1:])
self._rqueue.put(method(*args, **kwargs))
else:
method = getattr(self._namespace, name)
method(*args, **kwargs)