def __update( self ) : # update the listing if necessary. when the path itself changes, we only # want to update if the directory being viewed has changed. if the path # hasn't changed at all then we assume that the filter has changed and # we therefore have to update the listing anyway. # \todo Add an argument to Path.pathChangedSignal() to specify whether it # is the path or the filtering that has changed, and remove self.__currentPath. # Also consider whether it might be easier for the C++ PathModel to be # doing the signal handling at that point. dirPath = self.__dirPath() if self.__currentDir!=dirPath or str( self.__path )==self.__currentPath : selectedPaths = self.getSelectedPaths() expandedPaths = None if str( self.__path ) == self.__currentPath : # the path location itself hasn't changed so we are assuming that just the filter has. # if we're in the tree view mode, the user would probably be very happy # if we didn't forget what was expanded. if self.getDisplayMode() == self.DisplayMode.Tree : expandedPaths = self.getExpandedPaths() _GafferUI._pathListingWidgetUpdateModel( GafferUI._qtAddress( self._qtWidget() ), dirPath.copy() ) if expandedPaths is not None : self.setExpandedPaths( expandedPaths ) self.setSelectedPaths( selectedPaths, scrollToFirst = False, expandNonLeaf = False ) self.__currentDir = dirPath self.__currentPath = str( self.__path )
def __update(self):
# update the listing if necessary. when the path itself changes, we only
# want to update if the directory being viewed has changed. if the path
# hasn't changed at all then we assume that the filter has changed and
# we therefore have to update the listing anyway.
# \todo Add an argument to Path.pathChangedSignal() to specify whether it
# is the path or the filtering that has changed, and remove self.__currentPath.
# Also consider whether it might be easier for the C++ PathModel to be
# doing the signal handling at that point.
dirPath = self.__dirPath()
if self.__currentDir != dirPath or str(
self.__path) == self.__currentPath:
selectedPaths = self.getSelectedPaths()
expandedPaths = None
if str(self.__path) == self.__currentPath:
# the path location itself hasn't changed so we are assuming that just the filter has.
# if we're in the tree view mode, the user would probably be very happy
# if we didn't forget what was expanded.
if self.getDisplayMode() == self.DisplayMode.Tree:
expandedPaths = self.getExpandedPaths()
_GafferUI._pathListingWidgetUpdateModel(
GafferUI._qtAddress(self._qtWidget()), dirPath.copy())
if expandedPaths is not None:
self.setExpandedPaths(expandedPaths)
self.setSelectedPaths(selectedPaths, scrollToFirst=False)
self.__currentDir = dirPath
self.__currentPath = str(self.__path)
def __init__( self, path, columns = defaultFileSystemColumns, allowMultipleSelection = False, displayMode = DisplayMode.List, **kw ) : GafferUI.Widget.__init__( self, _TreeView(), **kw ) self._qtWidget().setAlternatingRowColors( True ) self._qtWidget().setUniformRowHeights( True ) self._qtWidget().setEditTriggers( QtWidgets.QTreeView.NoEditTriggers ) self._qtWidget().activated.connect( Gaffer.WeakMethod( self.__activated ) ) if Qt.__binding__ in ( "PySide2", "PyQt5" ) : self._qtWidget().header().setSectionsMovable( False ) else : self._qtWidget().header().setMovable( False ) self._qtWidget().header().setSortIndicator( 0, QtCore.Qt.AscendingOrder ) self._qtWidget().setSortingEnabled( True ) self._qtWidget().expansionChanged.connect( Gaffer.WeakMethod( self.__expansionChanged ) ) # install an empty model, so we an construct our selection model # around it. we'll update the model contents shortly in setPath(). _GafferUI._pathListingWidgetUpdateModel( GafferUI._qtAddress( self._qtWidget() ), None ) _GafferUI._pathListingWidgetSetColumns( GafferUI._qtAddress( self._qtWidget() ), columns ) self.__selectionModel = QtCore.QItemSelectionModel( self._qtWidget().model() ) self._qtWidget().setSelectionModel( self.__selectionModel ) self.__selectionChangedSlot = Gaffer.WeakMethod( self.__selectionChanged ) self._qtWidget().selectionModel().selectionChanged.connect( self.__selectionChangedSlot ) if allowMultipleSelection : self._qtWidget().setSelectionMode( QtWidgets.QAbstractItemView.ExtendedSelection ) self.__pathSelectedSignal = GafferUI.WidgetSignal() self.__selectionChangedSignal = GafferUI.WidgetSignal() self.__displayModeChangedSignal = GafferUI.WidgetSignal() self.__expansionChangedSignal = GafferUI.WidgetSignal() # members for implementing drag and drop self.__emittingButtonPress = False self.__borrowedButtonPress = None self.__buttonPressConnection = self.buttonPressSignal().connect( Gaffer.WeakMethod( self.__buttonPress ) ) self.__buttonReleaseConnection = self.buttonReleaseSignal().connect( Gaffer.WeakMethod( self.__buttonRelease ) ) self.__mouseMoveConnection = self.mouseMoveSignal().connect( Gaffer.WeakMethod( self.__mouseMove ) ) self.__dragBeginConnection = self.dragBeginSignal().connect( Gaffer.WeakMethod( self.__dragBegin ) ) self.__dragEndConnection = self.dragEndSignal().connect( Gaffer.WeakMethod( self.__dragEnd ) ) self.__dragPointer = "paths" self.__path = None self.setDisplayMode( displayMode ) self.setPath( path )
def __init__( self, path, columns = defaultFileSystemColumns, allowMultipleSelection = False, displayMode = DisplayMode.List, **kw ) : GafferUI.Widget.__init__( self, _TreeView(), **kw ) self._qtWidget().setAlternatingRowColors( True ) self._qtWidget().setUniformRowHeights( True ) self._qtWidget().setEditTriggers( QtWidgets.QTreeView.NoEditTriggers ) self._qtWidget().activated.connect( Gaffer.WeakMethod( self.__activated ) ) if Qt.__binding__ in ( "PySide2", "PyQt5" ) : self._qtWidget().header().setSectionsMovable( False ) else : self._qtWidget().header().setMovable( False ) self._qtWidget().header().setSortIndicator( 0, QtCore.Qt.AscendingOrder ) self._qtWidget().setSortingEnabled( True ) self._qtWidget().expansionChanged.connect( Gaffer.WeakMethod( self.__expansionChanged ) ) # install an empty model, so we an construct our selection model # around it. we'll update the model contents shortly in setPath(). _GafferUI._pathListingWidgetUpdateModel( GafferUI._qtAddress( self._qtWidget() ), None ) _GafferUI._pathListingWidgetSetColumns( GafferUI._qtAddress( self._qtWidget() ), columns ) self.__selectionModel = QtCore.QItemSelectionModel( self._qtWidget().model() ) self._qtWidget().setSelectionModel( self.__selectionModel ) self.__selectionChangedSlot = Gaffer.WeakMethod( self.__selectionChanged ) self._qtWidget().selectionModel().selectionChanged.connect( self.__selectionChangedSlot ) if allowMultipleSelection : self._qtWidget().setSelectionMode( QtWidgets.QAbstractItemView.ExtendedSelection ) self.__pathSelectedSignal = GafferUI.WidgetSignal() self.__selectionChangedSignal = GafferUI.WidgetSignal() self.__displayModeChangedSignal = GafferUI.WidgetSignal() self.__expansionChangedSignal = GafferUI.WidgetSignal() # members for implementing drag and drop self.__emittingButtonPress = False self.__borrowedButtonPress = None self.__buttonPressConnection = self.buttonPressSignal().connect( Gaffer.WeakMethod( self.__buttonPress ) ) self.__buttonReleaseConnection = self.buttonReleaseSignal().connect( Gaffer.WeakMethod( self.__buttonRelease ) ) self.__mouseMoveConnection = self.mouseMoveSignal().connect( Gaffer.WeakMethod( self.__mouseMove ) ) self.__dragBeginConnection = self.dragBeginSignal().connect( Gaffer.WeakMethod( self.__dragBegin ) ) self.__dragEndConnection = self.dragEndSignal().connect( Gaffer.WeakMethod( self.__dragEnd ) ) self.__dragPointer = "paths" self.__path = None self.setDisplayMode( displayMode ) self.setPath( path )
