def __init__(self, *args, **kwargs):
############################################################
# Signals
# Making QLayer inherit from QObject leads to
# a bugged behavior of hasattr and getattr.
# So, we don't add signals as first level class attributes.
# Instead, we use instances of ad hoc signal containers.
############################################################
self.visibilityChanged = baseSignal_bool()
self.colorPicked = baseSignal_Int2()
self.selectionChanged = baseSignal_No()
self.maskSettingsChanged = baseSignal_No()
###########################################################
# when a geometric transformation is applied to the whole image
# each layer must be replaced with a transformed layer, recorded in tLayer
# and tLayer.parentLayer keeps a reference to the original layer.
###########################################################
self.tLayer = self
self.parentLayer = self
self.modified = False
self.name = 'noname'
self.visible = True
self.isClipping = False
self.role = kwargs.pop('role', '')
self.tool = None
# back link to parent image
parentImage = kwargs.pop('parentImage', None)
self.parentImage = weakProxy(parentImage)
super().__init__(*args, **kwargs) # don't move backwards
# mask init, must be done after after calling super().__init__
if type(self) not in [QPresentationLayer]:
self.mask = QImage(self.width(), self.height(),
QImage.Format_ARGB32)
# default : unmask all
self.mask.fill(self.defaultColor_UnMasked)
# layer opacity, range 0.0...1.0
self.opacity = 1.0
self.compositionMode = QPainter.CompositionMode_SourceOver
# The next two attributes are used by adjustment layers only.
self.execute = lambda l=None, pool=None: l.updatePixmap(
) if l is not None else None
self.options = {}
# actionName is used by methods graphics***.writeToStream()
self.actionName = 'actionNull'
# view is the dock widget containing
# the graphics form associated with the layer
self.view = None
# undo/redo mask history
self.historyListMask = historyList(size=5)
# consecutive layers can be grouped.
# A group is a list of QLayer objects
self.group = []
# layer offsets
self.xOffset, self.yOffset = 0, 0
self.Zoom_coeff = 1.0
# clone dup layer shift and zoom relative to current layer
self.xAltOffset, self.yAltOffset = 0, 0
self.AltZoom_coeff = 1.0
self.updatePixmap()
def __init__(self, parent=None):
super().__init__(parent=parent)
self.closeSignal = baseSignal_No()