def dropEvent(self, e):
"""Accept drop events."""
model = QStandardItemModel()
model.dropMimeData(
e.mimeData(), Qt.CopyAction, 0, 0, QModelIndex())
name = model.item(0).text()
item = None
if name in ['And', 'Or', 'Nand', 'Nor', 'Not', 'Xor', 'Xnor']:
item = CircuitItem(
getattr(engine.gates, name + 'Gate')(None, self.mainCircuit))
elif name == 'RSFlipFlop':
item = CircuitItem(RSFlipFlop(None, self.mainCircuit))
elif name == 'JKFlipFlop':
item = CircuitItem(JKFlipFlop(None, self.mainCircuit))
elif name == self.str_I:
item = PlugItem(Plug(True, None, self.mainCircuit))
elif name == self.str_O:
item = PlugItem(Plug(False, None, self.mainCircuit))
elif name == self.str_Clock:
if not self.clockPlug:
self.clockPlug = Clock(self.mainCircuit)
self.clockPlug.clkThread.set_extern(self.clockUpdate)
item = PlugItem(self.clockPlug)
else:
self.write(self.str_onlyOneClock)
elif model.item(0, 1).text() == 'user':
c = Circuit(None, self.mainCircuit)
f = open(filePath('user/') + name + '.crc', 'rb')
children = pickle.load(f)
f.close()
for child in children:
if isinstance(child[0], Plug):
child[0].owner = c
if child[0].isInput:
c.inputList.append(child[0])
else:
c.outputList.append(child[0])
elif isinstance(child[0], Circuit):
child[0].owner = c
c.circuitList.append(child[0])
c.category = name
item = CircuitItem(c)
if item:
# Fixes the default behaviour of centering the first
# item added to scene.
if not len(self.scene().items()):
self.scene().setSceneRect(0, 0, 1, 1)
else:
self.scene().setSceneRect(0, 0, 0, 0)
self.scene().addItem(item)
item.setupPaint()
item.setPos(
closestGridPoint(item.mapFromScene(self.mapToScene(e.pos()))))
for i in self.scene().selectedItems():
i.setSelected(False)
item.setSelected(True)
self.timer.start()
