def mousePressEvent(self, e):
if self.supress:
return
self.last_press = self.itemAt(e.scenePos(), QTransform())
if self.selection:
if (e.button()==qt.LeftButton and not self.itemAt(e.scenePos(), QTransform())) or e.button()==qt.RightButton:
old_selection = self.selection
self.selection = set()
for it in old_selection:
try:
it.selected = False
except AttributeError:
pass
if not self.itemAt(e.scenePos(), QTransform()):
if e.button()==qt.LeftButton:
if e.modifiers()&qt.ShiftModifier:
self.selection_path_item = QGraphicsPathItem()
self.selection_path = path = QPainterPath()
self.selection_path_item.setPen(QPen(Color.selection, 0, qt.DashLine))
path.moveTo(e.scenePos())
self.selection_path_item.setPath(path)
self.addItem(self.selection_path_item)
if e.button()==qt.LeftButton or (self.use_rightclick and e.button()==qt.RightButton):
if not e.modifiers()&qt.ShiftModifier:
self.place(e.scenePos(), Cell.full if (e.button()==qt.LeftButton)^self.swap_buttons else Cell.empty)
else:
QGraphicsScene.mousePressEvent(self, e)
