def init(self):
self._nodeManager = NodeManager()
self._connectionManager = ConnectionManager()
self._viewerManager = ViewerManager()
# connect undoRedoChanged signal
self._nodeManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
self._connectionManager.undoRedoChanged.connect(
self.emitUndoRedoChanged)
self._viewerManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
return self
def add_new_machine(self, config):
memory = int(config.split()[0])
mapSlots = int(config.split()[1])
redSlots = int(config.split()[2])
self.cluster.totalMapSlots += mapSlots
self.cluster.totalRedSlots += redSlots
self.cluster.nodes.append(NodeManager(self, memory, mapSlots,
redSlots))
def init(self):
self._nodeManager = NodeManager()
self._connectionManager = ConnectionManager()
self._viewerManager = ViewerManager()
# connect undoRedoChanged signal
self._nodeManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
self._connectionManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
self._viewerManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
return self
def handle_overflow(self, u):
u1, u2 = self.split(u)
# if u is root, create a new root with s1 and s2 as its' children
if u.check_root():
new_root = NodeManager()
self.add_child_node(new_root, u1)
self.add_child_node(new_root, u2)
self.root = new_root
self.update_mbr(new_root)
# if u is not root, delete u, and set s1 and s2 as u's parent's new children
else:
w = u.parent
# copy the information of s1 into u
w.child_nodes.remove(u)
self.add_child_node(w, u1)
self.add_child_node(w, u2)
if w.check_overflow():
self.handle_overflow(w)
self.update_mbr(w)
def __init__(self):
self.root = NodeManager()
def split(self, u):
# split u into s1 and s2
best_s1 = NodeManager()
best_s2 = NodeManager()
best_perimeter = sys.maxsize
# u is a leaf node
if u.check_leaf():
m = u.data_points.__len__()
# create two different kinds of divides
divides = [
sorted(u.data_points, key=lambda data_point: data_point['x']),
sorted(u.data_points, key=lambda data_point: data_point['y'])
]
for divide in divides:
for i in range(math.ceil(0.4 * B), m - math.ceil(0.4 * B) + 1):
s1 = NodeManager()
s1.data_points = divide[0:i]
self.update_mbr(s1)
s2 = NodeManager()
s2.data_points = divide[i:divide.__len__()]
self.update_mbr(s2)
if best_perimeter > s1.calculate_perimeter(
) + s2.calculate_perimeter():
best_perimeter = s1.calculate_perimeter(
) + s2.calculate_perimeter()
best_s1 = s1
best_s2 = s2
# u is a internal node
else:
# create four different kinds of divides
m = u.child_nodes.__len__()
divides = [
sorted(u.child_nodes,
key=lambda child_node: child_node.MBR['x_min']),
sorted(u.child_nodes,
key=lambda child_node: child_node.MBR['x_max']),
sorted(u.child_nodes,
key=lambda child_node: child_node.MBR['y_min']),
sorted(u.child_nodes,
key=lambda child_node: child_node.MBR['y_max'])
]
for divide in divides:
for i in range(math.ceil(0.4 * B), m - math.ceil(0.4 * B) + 1):
s1 = NodeManager()
s1.child_nodes = divide[0:i]
self.update_mbr(s1)
s2 = NodeManager()
s2.child_nodes = divide[i:divide.__len__()]
self.update_mbr(s2)
if best_perimeter > s1.calculate_perimeter(
) + s2.calculate_perimeter():
best_perimeter = s1.calculate_perimeter(
) + s2.calculate_perimeter()
best_s1 = s1
best_s2 = s2
for child in best_s1.child_nodes:
child.parent = best_s1
for child in best_s2.child_nodes:
child.parent = best_s2
return best_s1, best_s2
class ButtleManager(QtCore.QObject):
"""
This class catches events from QML, and manages them by calling the right manager or the right methods in core.
It's like the front manager, which delegate to other managers.
This class also catches events from QML about undo / redo.
"""
def init(self):
self._nodeManager = NodeManager()
self._connectionManager = ConnectionManager()
self._viewerManager = ViewerManager()
# connect undoRedoChanged signal
self._nodeManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
self._connectionManager.undoRedoChanged.connect(
self.emitUndoRedoChanged)
self._viewerManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
return self
############### getters ###############
def getNodeManager(self):
return self._nodeManager
def getConnectionManager(self):
return self._connectionManager
def getViewerManager(self):
return self._viewerManager
############### UNDO & REDO ###############
@QtCore.Slot()
def undo(self):
"""
Calls the cmdManager to undo the last command.
"""
cmdManager = CommandManager()
cmdManager.undo()
# emit undo/redo display
self.emitUndoRedoChanged()
# if we need to update params or viewer
buttleData = ButtleDataSingleton().get()
buttleData.currentParamNodeChanged.emit()
buttleData.currentViewerNodeChanged.emit()
@QtCore.Slot()
def redo(self):
"""
Calls the cmdManager to redo the last command.
"""
cmdManager = CommandManager()
cmdManager.redo()
# emit undo/redo display
self.emitUndoRedoChanged()
# if we need to update params or viewer
buttleData = ButtleDataSingleton().get()
buttleData.currentParamNodeChanged.emit()
buttleData.currentViewerNodeChanged.emit()
def signalUndoRedo(self):
self.undoRedoChanged.emit()
def canUndo(self):
"""
Calls the cmdManager to return if we can undo or not.
"""
cmdManager = CommandManager()
return cmdManager.canUndo()
def canRedo(self):
"""
Calls the cmdManager to return if we can redo or not.
"""
cmdManager = CommandManager()
return cmdManager.canRedo()
############### DELETION ###############
@QtCore.Slot()
def deleteSelection(self):
buttleData = ButtleDataSingleton().get()
if (buttleData.currentConnectionWrapper):
self._connectionManager.disconnect(
buttleData.currentConnectionWrapper)
else:
self._nodeManager.destructionNodes()
################################################## DATA EXPOSED TO QML ##################################################
@QtCore.Signal
def changed(self):
pass
def emitUndoRedoChanged(self):
self.changed.emit()
# undo redo
canUndo = QtCore.Property(bool, canUndo, notify=changed)
canRedo = QtCore.Property(bool, canRedo, notify=changed)
# managers
nodeManager = QtCore.Property(QtCore.QObject,
getNodeManager,
constant=True)
connectionManager = QtCore.Property(QtCore.QObject,
getConnectionManager,
constant=True)
viewerManager = QtCore.Property(QtCore.QObject,
getViewerManager,
constant=True)
class ButtleManager(QtCore.QObject):
"""
This class catches events from QML, and manages them by calling the right manager or the right methods in core.
It's like the front manager, which delegate to other managers.
This class also catches events from QML about undo / redo.
"""
def init(self):
self._nodeManager = NodeManager()
self._connectionManager = ConnectionManager()
self._viewerManager = ViewerManager()
# connect undoRedoChanged signal
self._nodeManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
self._connectionManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
self._viewerManager.undoRedoChanged.connect(self.emitUndoRedoChanged)
return self
############### getters ###############
def getNodeManager(self):
return self._nodeManager
def getConnectionManager(self):
return self._connectionManager
def getViewerManager(self):
return self._viewerManager
############### UNDO & REDO ###############
@QtCore.Slot()
def undo(self):
"""
Calls the cmdManager to undo the last command.
"""
cmdManager = CommandManager()
cmdManager.undo()
# emit undo/redo display
self.emitUndoRedoChanged()
# if we need to update params or viewer
buttleData = ButtleDataSingleton().get()
buttleData.currentParamNodeChanged.emit()
buttleData.currentViewerNodeChanged.emit()
@QtCore.Slot()
def redo(self):
"""
Calls the cmdManager to redo the last command.
"""
cmdManager = CommandManager()
cmdManager.redo()
# emit undo/redo display
self.emitUndoRedoChanged()
# if we need to update params or viewer
buttleData = ButtleDataSingleton().get()
buttleData.currentParamNodeChanged.emit()
buttleData.currentViewerNodeChanged.emit()
def signalUndoRedo(self):
self.undoRedoChanged.emit()
def canUndo(self):
"""
Calls the cmdManager to return if we can undo or not.
"""
cmdManager = CommandManager()
return cmdManager.canUndo()
def canRedo(self):
"""
Calls the cmdManager to return if we can redo or not.
"""
cmdManager = CommandManager()
return cmdManager.canRedo()
############### DELETION ###############
@QtCore.Slot()
def deleteSelection(self):
buttleData = ButtleDataSingleton().get()
if(buttleData.currentConnectionWrapper):
self._connectionManager.disconnect(buttleData.currentConnectionWrapper)
else:
self._nodeManager.destructionNodes()
################################################## DATA EXPOSED TO QML ##################################################
@QtCore.Signal
def changed(self):
pass
def emitUndoRedoChanged(self):
self.changed.emit()
# undo redo
canUndo = QtCore.Property(bool, canUndo, notify=changed)
canRedo = QtCore.Property(bool, canRedo, notify=changed)
# managers
nodeManager = QtCore.Property(QtCore.QObject, getNodeManager, constant=True)
connectionManager = QtCore.Property(QtCore.QObject, getConnectionManager, constant=True)
viewerManager = QtCore.Property(QtCore.QObject, getViewerManager, constant=True)