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): 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()