def setInput(self, **args):
"""Set the values on input terminals. For most nodes, this will happen automatically through Terminal.inputChanged.
This is normally only used for nodes with no connected inputs."""
changed = False
for k, v in args.iteritems():
term = self._inputs[k]
oldVal = term.value()
if not eq(oldVal, v):
changed = True
term.setValue(v, process=False)
if changed and '_updatesHandled_' not in args:
self.update()
def recolor(self, color=None, recurse=True):
if color is None:
if not self.isConnected(): ## disconnected terminals are black
color = QtGui.QColor(0,0,0)
elif self.isInput() and not self.hasInput(): ## input terminal with no connected output terminals
color = QtGui.QColor(200,200,0)
elif self._value is None or eq(self._value, {}): ## terminal is connected but has no data (possibly due to processing error)
color = QtGui.QColor(255,255,255)
elif self.valueIsAcceptable() is None: ## terminal has data, but it is unknown if the data is ok
color = QtGui.QColor(200, 200, 0)
elif self.valueIsAcceptable() is True: ## terminal has good input, all ok
color = QtGui.QColor(0, 200, 0)
else: ## terminal has bad input
color = QtGui.QColor(200, 0, 0)
self.graphicsItem().setBrush(QtGui.QBrush(color))
if recurse:
for t in self.connections():
t.recolor(color, recurse=False)
def setValue(self, val, process=True):
"""If this is a single-value terminal, val should be a single value.
If this is a multi-value terminal, val should be a dict of terminal:value pairs"""
if not self.isMultiValue():
if eq(val, self._value):
return
self._value = val
else:
if val is not None:
self._value.update(val)
self.setValueAcceptable(None) ## by default, input values are 'unchecked' until Node.update().
if self.isInput() and process:
self.node().update()
## Let the flowchart handle this.
#if self.isOutput():
#for c in self.connections():
#if c.isInput():
#c.inputChanged(self)
self.recolor()
def setValue(self, val, process=True):
"""If this is a single-value terminal, val should be a single value.
If this is a multi-value terminal, val should be a dict of terminal:value pairs"""
if not self.isMultiValue():
if eq(val, self._value):
return
self._value = val
else:
if val is not None:
self._value.update(val)
self.setValueAcceptable(
None
) ## by default, input values are 'unchecked' until Node.update().
if self.isInput() and process:
self.node().update()
## Let the flowchart handle this.
#if self.isOutput():
#for c in self.connections():
#if c.isInput():
#c.inputChanged(self)
self.recolor()
def recolor(self, color=None, recurse=True):
if color is None:
if not self.isConnected(): ## disconnected terminals are black
color = QtGui.QColor(0, 0, 0)
elif self.isInput() and not self.hasInput(
): ## input terminal with no connected output terminals
color = QtGui.QColor(200, 200, 0)
elif self._value is None or eq(
self._value, {}
): ## terminal is connected but has no data (possibly due to processing error)
color = QtGui.QColor(255, 255, 255)
elif self.valueIsAcceptable(
) is None: ## terminal has data, but it is unknown if the data is ok
color = QtGui.QColor(200, 200, 0)
elif self.valueIsAcceptable(
) is True: ## terminal has good input, all ok
color = QtGui.QColor(0, 200, 0)
else: ## terminal has bad input
color = QtGui.QColor(200, 0, 0)
self.graphicsItem().setBrush(QtGui.QBrush(color))
if recurse:
for t in self.connections():
t.recolor(color, recurse=False)