def mouseReleaseEvent(self, event: QGraphicsSceneMouseEvent):
if event.button() == Qt.LeftButton:
self.__selection_rect.setVisible(False)
self.__sel_action = None
self.__selected_attrs = self.__selected_attrs_current
self.selection_changed.emit(self.__selected_attrs)
event.accept()
def mouseReleaseEvent(self, event: QGraphicsSceneMouseEvent) -> None:
if self._orientation == Qt.Vertical:
self.setValue(event.pos().y())
else:
self.setValue(event.pos().x())
self.lineReleased.emit()
event.accept()
def mouseReleaseEvent(self, event: QGraphicsSceneMouseEvent):
x1 = event.buttonDownPos(Qt.LeftButton).x()
x2 = event.pos().x()
if x1 > x2:
x2, x1 = x1, x2
x1, x2 = self._values_from_pixels(np.array([x1, x2]))
self.selection_changed.emit(x1, x2, self._attr_name)
event.accept()
def mouseMoveEvent(self, event: QGraphicsSceneMouseEvent) -> None:
pos = event.pos()
if self._orientation == Qt.Vertical:
self.setValue(pos.y())
else:
self.setValue(pos.x())
self.lineMoved.emit()
event.accept()
def mouseMoveEvent(self, event: QGraphicsSceneMouseEvent):
if event.buttons() & Qt.LeftButton:
rect = QRectF(event.buttonDownPos(Qt.LeftButton),
event.pos()).normalized()
self.__selection_rect.setRect(rect)
self.__selection_rect.setVisible(True)
if rect.width():
self.select(None)
event.accept()
def mouseMoveEvent(self, event: QGraphicsSceneMouseEvent):
if event.buttons() & Qt.LeftButton:
if self._selection_rect is None:
self._selection_rect = ViolinItem.SelectionRect(
self, self._width, self._height)
x = event.buttonDownPos(Qt.LeftButton).x()
rect = QRectF(x, 0, event.pos().x() - x, self._height).normalized()
rect = rect.intersected(self.contentsRect())
self._selection_rect.setRect(rect)
event.accept()
def mousePressEvent(self, event: QGraphicsSceneMouseEvent) -> None:
flags = self.textInteractionFlags()
if flags & Qt.LinksAccessibleByMouse \
and not flags & Qt.TextSelectableByMouse \
and self.document().documentLayout().anchorAt(event.pos()):
# QGraphicsTextItem ignores the press event without
# Qt.TextSelectableByMouse flag set. This causes the
# corresponding mouse release to never get to this item
# and therefore no linkActivated/openUrl ...
super().mousePressEvent(event)
if not event.isAccepted():
event.accept()
else:
super().mousePressEvent(event)
def cursor_event(self, ev: QGraphicsSceneMouseEvent):
if self.__curve is None:
return False
if self._state == States.HOLDING_CURVE:
return False
pos = self.__curve.mapFromScene(ev.scenePos())
if self._state == States.MOVING_CURVE:
self.curve_moved.emit(pos.x() - self._initial_x,
pos.y() - self._initial_y)
self._initial_x = pos.x()
self._initial_y = pos.y()
return False
if self._on_curve(pos.x(), pos.y()):
self._initial_x = pos.x()
self._initial_y = pos.y()
if self._state == States.WAITING:
self._state = States.ON_CURVE
self.getViewBox().setCursor(Qt.SizeAllCursor)
else:
self.getViewBox().setCursor(Qt.ArrowCursor)
if self._state == States.ON_CURVE:
self._state = States.WAITING
return False
def mousePressEvent(self, event: QGraphicsSceneMouseEvent):
if event.buttons() & Qt.LeftButton:
if event.modifiers() & Qt.ControlModifier:
self.__sel_action = self.SelectAction.Toggle
elif event.modifiers() & Qt.AltModifier:
self.__sel_action = self.SelectAction.Deselect
elif event.modifiers() & Qt.ShiftModifier:
self.__sel_action = self.SelectAction.Select
else:
self.__sel_action = self.SelectAction.ClearSelect
self.select(event.pos())
event.accept()
def mousePressEvent(self, event: QGraphicsSceneMouseEvent):
event.accept()
def mousePressEvent(self, event: QGraphicsSceneMouseEvent) -> None:
self.mousePressed.emit(event.pos(), event.button())
super().mousePressEvent(event)
event.accept()
def mousePressEvent(self, event: QGraphicsSceneMouseEvent) -> None:
event.accept()
self.linePressed.emit()
def mousePressEvent(self, ev: QGraphicsSceneMouseEvent):
keys = QApplication.keyboardModifiers()
if self.__state == SELECT and not keys & Qt.ShiftModifier:
ev.accept()
self.sigDeselect.emit()
super().mousePressEvent(ev)
