本文整理汇总了Python中PyQt5.QtWidgets.QGraphicsLineItem.setParentItem方法的典型用法代码示例。如果您正苦于以下问题：Python QGraphicsLineItem.setParentItem方法的具体用法？Python QGraphicsLineItem.setParentItem怎么用？Python QGraphicsLineItem.setParentItem使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PyQt5.QtWidgets.QGraphicsLineItem的用法示例。
在下文中一共展示了QGraphicsLineItem.setParentItem方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: onMouseMove_draw
# 需要导入模块: from PyQt5.QtWidgets import QGraphicsLineItem [as 别名]
# 或者: from PyQt5.QtWidgets.QGraphicsLineItem import setParentItem [as 别名]
def onMouseMove_draw(self, imageview, event):
self._navIntr.onMouseMove_default(imageview, event)
o = imageview.scene().data2scene.map(QPointF(imageview.oldX, imageview.oldY))
n = imageview.scene().data2scene.map(QPointF(imageview.x, imageview.y))
# Draw temporary line for the brush stroke so the user gets feedback before the data is really updated.
pen = QPen(
QBrush(self._brushingCtrl._brushingModel.drawColor),
self._brushingCtrl._brushingModel.brushSize,
Qt.SolidLine,
Qt.RoundCap,
Qt.RoundJoin,
)
line = QGraphicsLineItem(o.x(), o.y(), n.x(), n.y())
line.setPen(pen)
imageview.scene().addItem(line)
line.setParentItem(imageview.scene().dataRectItem)
self._lineItems.append(line)
self._brushingCtrl._brushingModel.moveTo(imageview.mousePos)示例2: AbstractSliceTool
# 需要导入模块: from PyQt5.QtWidgets import QGraphicsLineItem [as 别名]
# 或者: from PyQt5.QtWidgets.QGraphicsLineItem import setParentItem [as 别名]
class AbstractSliceTool(QGraphicsObject):
"""Summary
Attributes:
angles (TYPE): Description
FILTER_NAME (str): Description
is_started (bool): Description
manager (TYPE): Description
part_item (TYPE): Description
sgv (TYPE): Description
vectors (TYPE): Description
"""
_RADIUS = styles.SLICE_HELIX_RADIUS
_CENTER_OF_HELIX = QPointF(_RADIUS, _RADIUS)
FILTER_NAME = 'virtual_helix'
# _CENTER_OF_HELIX = QPointF(0. 0.)
"""Abstract base class to be subclassed by all other pathview tools."""
def __init__(self, manager):
"""Summary
Args:
manager (TYPE): Description
"""
super(AbstractSliceTool, self).__init__(parent=manager.viewroot)
""" Pareting to viewroot to prevent orphan _line_item from occuring
"""
self.sgv = None
self.manager = manager
self._active = False
self._last_location = None
self._line_item = QGraphicsLineItem(self)
self._line_item.hide()
self._vhi = None
self.hide()
self.is_started = False
self.angles = [math.radians(x) for x in range(0, 360, 30)]
self.vectors = self.setVectors()
self.part_item = None
self.vhi_hint_item = QGraphicsEllipseItem(_DEFAULT_RECT, self)
self.vhi_hint_item.setPen(_MOD_PEN)
self.vhi_hint_item.setZValue(styles.ZPARTITEM)
# end def
######################## Drawing #######################################
def setVectors(self):
"""Summary
Returns:
TYPE: Description
"""
rad = self._RADIUS
return [QLineF(rad, rad,
rad*(1. + 2.*math.cos(x)), rad*(1. + 2.*math.sin(x))
) for x in self.angles]
# end def
def setVirtualHelixItem(self, virtual_helix_item):
"""Summary
Args:
virtual_helix_item (cadnano.gui.views.sliceview.virtualhelixitem.VirtualHelixItem): Description
Returns:
TYPE: Description
"""
rad = self._RADIUS
self._vhi = virtual_helix_item
li = self._line_item
li.setParentItem(virtual_helix_item)
li.setLine(rad, rad, rad, rad)
# li.setLine(0., 0., 0., 0.)
# end def
def setSelectionFilter(self, filter_name_list):
if 'virtual_helix' in filter_name_list:
self.vhi_hint_item.setPen(_MOD_PEN)
else:
self.vhi_hint_item.setPen(_INACTIVE_PEN)
# end def
def resetTool(self):
"""Summary
Returns:
TYPE: Description
"""
self._line_item.setParentItem(self)
def idNum(self):
"""Summary
Returns:
TYPE: Description
"""
if self._vhi is not None:
return self._vhi.idNum()
def setPartItem(self, part_item):
#.........这里部分代码省略.........