Python QtWidgets.QGraphicsItem方法代码示例

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def __init__(self, parent):
        """
        Create property animations, sets the opacity to zero initially.

        :param parent:
        """
        super().__init__()
        if isinstance(parent, QtWidgets.QGraphicsItem):
            # create opacity effect
            self.effect = QtWidgets.QGraphicsOpacityEffect()
            self.effect.setOpacity(0)
            parent.setGraphicsEffect(self.effect)
            self.fade = QtCore.QPropertyAnimation(self.effect, 'opacity'.encode())  # encode is utf-8 by default
        elif isinstance(parent, QtWidgets.QWidget):
            parent.setWindowOpacity(0)
            self.fade = QtCore.QPropertyAnimation(parent, 'windowOpacity'.encode())  # encode is utf-8 by default
        else:
            raise RuntimeError('Type of parameter must be QtWidgets.QGraphicsItem or QtWidgets.QWidget.')

        # set start and stop value
        self.fade.setStartValue(0)
        self.fade.setEndValue(1)
        self.fade.finished.connect(self.finished)

        self.forward = True 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def itemChange(self, change, value):
        """
        Handle movement
        """
        if change == QtWidgets.QGraphicsItem.ItemPositionChange:
            if self.scene() is None: return value

            updRect = QtCore.QRectF(
                self.x() + self.aux.x(),
                self.y() + self.aux.y(),
                self.aux.BoundingRect.width(),
                self.aux.BoundingRect.height(),
            )
            self.scene().update(updRect)

        return super().itemChange(change, value) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def __init__(self, parent, imageObj):
        """
        Generic constructor for auxiliary zone items
        """
        super().__init__(parent)
        self.parent = parent
        self.imageObj = imageObj
        self.setFlag(QtWidgets.QGraphicsItem.ItemIsMovable, False)
        self.setFlag(QtWidgets.QGraphicsItem.ItemIsSelectable, False)
        self.setFlag(QtWidgets.QGraphicsItem.ItemStacksBehindParent, False)
        self.setParentItem(parent)
        self.hover = False

        if parent is not None:
            parent.aux.add(self)

        self.BoundingRect = QtCore.QRectF(0, 0, TileWidth, TileWidth) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def _on_element_selected(self, element: Optional[qw.QGraphicsItem], mouse_pos: qc.QPointF):
        text = f'mouse position: {mouse_pos.x():.4f}, {mouse_pos.y():.4f}\n'
        if element is None:
            text += 'No element selected'
        else:
            dxf_entity = element.data(CorrespondingDXFEntity)
            if dxf_entity is None:
                text += 'No data'
            else:
                text += f'Current Entity: {dxf_entity}\nLayer: {dxf_entity.dxf.layer}\n\nDXF Attributes:\n'
                for key, value in dxf_entity.dxf.all_existing_dxf_attribs().items():
                    text += f'- {key}: {value}\n'

                dxf_entity_stack = element.data(CorrespondingDXFEntityStack)
                if dxf_entity_stack:
                    text += '\nParents:\n'
                    for entity in reversed(dxf_entity_stack):
                        text += f'- {entity}\n'

        self.info.setPlainText(text) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def __init__(self):
        QtWidgets.QGraphicsRectItem.__init__(self, self.cursor)
        self.setPen(self.pen)
        self.setZValue(1e9)
        self.setFlag(QtWidgets.QGraphicsItem.ItemIgnoresTransformations) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def add_item(self, item: QtWidgets.QGraphicsItem):
        """
        Adds an item to the content list. Should be

        :param item:
        """
        if not isinstance(item, QtWidgets.QGraphicsItem):
            raise RuntimeError('Expected instance of QGraphicsItem!')
        self._content.add(item) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def __init__(self, parent):
            """
            Initializes the auxiliary entrance thing
            """
            super().__init__(parent)
            self.parent = parent
            self.setFlag(QtWidgets.QGraphicsItem.ItemIsMovable, False)
            self.setFlag(QtWidgets.QGraphicsItem.ItemIsSelectable, False)
            self.setFlag(QtWidgets.QGraphicsItem.ItemStacksBehindParent, True)
            self.setParentItem(parent)
            self.hover = False 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def setIsBehindZone(self, behind):
        """
        This allows you to choose whether the auiliary item will display
        behind the zone or in front of it. Default is for the item to
        be in front of the zone.
        """
        self.setFlag(QtWidgets.QGraphicsItem.ItemStacksBehindParent, behind) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def setIsBehindLocation(self, behind):
        """
        This allows you to choose whether the auiliary item will display
        behind the zone or in front of it. Default is for the item to
        be in front of the location.
        """
        self.setFlag(QtWidgets.QGraphicsItem.ItemStacksBehindParent, behind) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def setPos(self, *__args):
        """
        Set the item position.
        QtWidgets.QGraphicsItem.setPos(QtCore.QPointF)
        QtWidgets.QGraphicsItem.setPos(float, float)
        """
        if len(__args) == 1:
            pos = __args[0]
        elif len(__args) == 2:
            pos = QtCore.QPointF(__args[0], __args[1])
        else:
            raise TypeError('too many arguments; expected {0}, got {1}'.format(2, len(__args)))
        super().setPos(pos - QtCore.QPointF(self.width() / 2, self.height() / 2)) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def addItem(self, item: QGraphicsItem) -> None:
        super(ImageViewerScene, self).addItem(item)
        if isinstance(item, EditableItem):
            self.itemAdded.emit(item) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def removeItem(self, item: QGraphicsItem) -> None:
        super(ImageViewerScene, self).removeItem(item)
        if isinstance(item, EditableItem):
            self.itemDeleted.emit(item) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def __init__(self):
        super().__init__()
        self._current_item: Optional[qw.QGraphicsItem] = None 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def _set_item_data(self, item: qw.QGraphicsItem) -> None:
        item.setData(CorrespondingDXFEntity, self.current_entity)
        item.setData(CorrespondingDXFEntityStack, self.current_entity_stack) 

# 需要导入模块: from PyQt5 import QtWidgets [as 别名]
# 或者: from PyQt5.QtWidgets import QGraphicsItem [as 别名]
def __init__(self, node, parent = None, scene = None):
		super(SymbolUIItem, self).__init__(parent, scene)
		isIgnore = node and node.getKind() == node.KIND_UNKNOWN
		self.setFlag(QtWidgets.QGraphicsItem.ItemIsSelectable, not isIgnore)
		self.setFlag(QtWidgets.QGraphicsItem.ItemIsFocusable, not isIgnore)
		self.setAcceptDrops(True);
		self.setAcceptHoverEvents(True)
		self.node = node
		self.path = None
		self.rect = None
		self.isHover = False
		self.theta = (0,0)
		self.radius= (0,0)
		self.txtRadius = 0
		self.setToolTip("%s:%s" % (node.name, node.getKindName()))
		self.txtPos = None

		if not SymbolUIItem.COLOR_DICT:
			SymbolUIItem.COLOR_DICT = \
				{self.node.KIND_FUNCTION: QtGui.QColor(190,228,73),
				 self.node.KIND_VARIABLE: QtGui.QColor(255,198,217),
				 self.node.KIND_CLASS:    QtGui.QColor(154,177,209),
				 self.node.KIND_NAMESPACE: QtGui.QColor(154,225,209),
				 self.node.KIND_UNKNOWN: QtGui.QColor(195,195,195),
				 }

		self.setFlag(QtWidgets.QGraphicsItem.ItemIsSelectable)
		self.setFlag(QtWidgets.QGraphicsItem.ItemIsFocusable)