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)
