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[commands] expose and use more UndoStack properties

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Yann Lanthony 2017-09-26 16:55:47 +02:00
parent 2fcdc586a6
commit e17d0ea240
2 changed files with 28 additions and 3 deletions
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26
meshroom/ui/commands.py
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@ -1,8 +1,9 @@
from PySide2 import QtWidgets
from PySide2.QtWidgets import QUndoCommand, QUndoStack
from PySide2.QtCore import Property, Signal
from meshroom.processGraph.graph import Node
class UndoCommand(QtWidgets.QUndoCommand):
class UndoCommand(QUndoCommand):
def __init__(self, parent=None):
super(UndoCommand, self).__init__(parent)
self._enabled = True
@ -27,9 +28,15 @@ class UndoCommand(QtWidgets.QUndoCommand):
pass
class UndoStack(QtWidgets.QUndoStack):
class UndoStack(QUndoStack):
def __init__(self, parent=None):
super(UndoStack, self).__init__(parent)
# connect QUndoStack signal to UndoStack's ones
self.cleanChanged.connect(self._cleanChanged)
self.canUndoChanged.connect(self._canUndoChanged)
self.canRedoChanged.connect(self._canRedoChanged)
self.undoTextChanged.connect(self._undoTextChanged)
self.redoTextChanged.connect(self._redoTextChanged)
def tryAndPush(self, command: UndoCommand):
if command.redoImpl():
@ -40,6 +47,19 @@ class UndoStack(QtWidgets.QUndoStack):
else:
return False
# Redeclare QUndoStack signal since original ones can not be used for properties notifying
_cleanChanged = Signal()
_canUndoChanged = Signal()
_canRedoChanged = Signal()
_undoTextChanged = Signal()
_redoTextChanged = Signal()
clean = Property(bool, QUndoStack.isClean, notify=_cleanChanged)
canUndo = Property(bool, QUndoStack.canUndo, notify=_canRedoChanged)
canRedo = Property(bool, QUndoStack.canRedo, notify=_canUndoChanged)
undoText = Property(str, QUndoStack.undoText, notify=_undoTextChanged)
redoText = Property(str, QUndoStack.redoText, notify=_redoTextChanged)
class GraphCommand(UndoCommand):
def __init__(self, graph, parent=None):