def __init__(self, *args):
self.__boundingRect = None
QGraphicsObject.__init__(self, *args)
self.setFlag(QGraphicsItem.ItemHasNoContents, True)
self.setAcceptedMouseButtons(Qt.RightButton | Qt.LeftButton)
self.setAcceptHoverEvents(True)
self.setZValue(self.Z_VALUE)
self.sourceItem = None
self.sourceAnchor = None
self.sinkItem = None
self.sinkAnchor = None
self.curveItem = LinkCurveItem(self)
self.sourceIndicator = LinkAnchorIndicator(self)
self.sinkIndicator = LinkAnchorIndicator(self)
self.sourceIndicator.hide()
self.sinkIndicator.hide()
self.linkTextItem = QGraphicsTextItem(self)
self.linkTextItem.setAcceptedMouseButtons(Qt.NoButton)
self.linkTextItem.setAcceptHoverEvents(False)
self.__sourceName = ""
self.__sinkName = ""
self.__dynamic = False
self.__dynamicEnabled = False
self.__state = LinkItem.NoState
self.hover = False
self.prepareGeometryChange()
self.__updatePen()
self.__boundingRect = None
def __init__(self, *args):
self.__boundingRect = None
QGraphicsObject.__init__(self, *args)
self.setFlag(QGraphicsItem.ItemHasNoContents, True)
self.setAcceptedMouseButtons(Qt.RightButton | Qt.LeftButton)
self.setAcceptHoverEvents(True)
self.setZValue(self.Z_VALUE)
self.sourceItem = None
self.sourceAnchor = None
self.sinkItem = None
self.sinkAnchor = None
self.curveItem = LinkCurveItem(self)
self.sourceIndicator = LinkAnchorIndicator(self)
self.sinkIndicator = LinkAnchorIndicator(self)
self.sourceIndicator.hide()
self.sinkIndicator.hide()
self.linkTextItem = QGraphicsTextItem(self)
self.__sourceName = ""
self.__sinkName = ""
self.__dynamic = False
self.__dynamicEnabled = False
self.__state = LinkItem.Empty
self.hover = False
self.prepareGeometryChange()
self.__updatePen()
self.__boundingRect = None
def __init__(self, parent=None, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsObject.ItemHasNoContents)
self.__layoutPending = False
self.__isActive = False
self.__invalidatedAnchors = []
self.__enabled = True
def __init__(self, parent=None, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsObject.ItemSendsGeometryChanges)
self.__path = QPainterPath()
self.__brush = QBrush(Qt.NoBrush)
self.__pen = QPen()
self.__boundingRect = None
def __init__(self, parent=None, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsObject.ItemHasNoContents)
self.__layoutPending = False
self.__isActive = False
self.__invalidatedAnchors = []
self.__enabled = True
def __init__(self, parent=None, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsObject.ItemSendsGeometryChanges)
self.__path = QPainterPath()
self.__brush = QBrush(Qt.NoBrush)
self.__pen = QPen()
self.__boundingRect = None
def __init__(self, text, parent):
QGraphicsObject.__init__(self, parent)
self.text_item = QGraphicsTextItem(text + ':', self)
f = self.text_item.font()
f.setBold(True)
self.text_item.setFont(f)
self.rect_item = QGraphicsRectItem(self.text_item.boundingRect(), self)
self.rect_item.setPen(QPen(Qt.NoPen))
self.rect_item.stackBefore(self.text_item)
def __init__(self, text, parent):
QGraphicsObject.__init__(self, parent)
self.text_item = QGraphicsTextItem(text + ':', self)
f = self.text_item.font()
f.setBold(True)
self.text_item.setFont(f)
self.rect_item = QGraphicsRectItem(self.text_item.boundingRect(), self)
self.rect_item.setPen(QPen(Qt.NoPen))
self.rect_item.stackBefore(self.text_item)
def hoverEnterEvent(self, event):
# Hover enter event happens when the mouse enters any child object
# but we only want to show the 'hovered' shadow when the mouse
# is over the 'curveItem', so we install self as an event filter
# on the LinkCurveItem and listen to its hover events.
self.curveItem.installSceneEventFilter(self)
return QGraphicsObject.hoverEnterEvent(self, event)
def itemChange(self, change, value):
if change == QGraphicsObject.ItemPositionHasChanged:
pos = qunwrap(value)
self.positionChanged.emit()
self.positionChanged[QPointF].emit(pos)
return QGraphicsObject.itemChange(self, change, value)
def hoverEnterEvent(self, event):
# Hover enter event happens when the mouse enters any child object
# but we only want to show the 'hovered' shadow when the mouse
# is over the 'curveItem', so we install self as an event filter
# on the LinkCurveItem and listen to its hover events.
self.curveItem.installSceneEventFilter(self)
return QGraphicsObject.hoverEnterEvent(self, event)
def itemChange(self, change, value):
if change == QGraphicsItem.ItemSelectedChange:
self.shapeItem.setSelected(value)
self.captionTextItem.setSelectionState(value)
elif change == QGraphicsItem.ItemPositionHasChanged:
self.positionChanged.emit()
return QGraphicsObject.itemChange(self, change, value)
def sceneEventFilter(self, obj, event):
if obj is self.curveItem:
if event.type() == QEvent.GraphicsSceneHoverEnter:
self.setHoverState(True)
elif event.type() == QEvent.GraphicsSceneHoverLeave:
self.setHoverState(False)
return QGraphicsObject.sceneEventFilter(self, obj, event)
def sceneEventFilter(self, obj, event):
if obj is self.curveItem:
if event.type() == QEvent.GraphicsSceneHoverEnter:
self.setHoverState(True)
elif event.type() == QEvent.GraphicsSceneHoverLeave:
self.setHoverState(False)
return QGraphicsObject.sceneEventFilter(self, obj, event)
def __init__(self, palette, values, parent):
QGraphicsObject.__init__(self, parent)
self.parent = parent
self.palette = palette
self.values = values
self.legend = parent
self.label_items = [QGraphicsTextItem(text, self) for text in values]
for i in self.label_items:
i.setTextWidth(50)
self.rect = QRectF()
self.gradient_item = QGraphicsRectItem(self)
self.gradient = QLinearGradient()
self.gradient.setStops([(v*0.1, self.palette[v*0.1]) for v in range(11) ])
self.orientation = Qt.Horizontal
self.set_orientation(Qt.Vertical)
def itemChange(self, change, value):
if change == QGraphicsItem.ItemSelectedChange:
self.shapeItem.setSelected(value)
self.captionTextItem.setSelectionState(value)
elif change == QGraphicsItem.ItemPositionHasChanged:
self.positionChanged.emit()
return QGraphicsObject.itemChange(self, change, value)
def __init__(self, palette, values, parent):
QGraphicsObject.__init__(self, parent)
self.parent = parent
self.palette = palette
self.values = values
self.legend = parent
self.label_items = [QGraphicsTextItem(text, self) for text in values]
for i in self.label_items:
i.setTextWidth(50)
self.rect = QRectF()
self.gradient_item = QGraphicsRectItem(self)
self.gradient = QLinearGradient()
self.gradient.setStops([(v * 0.1, self.palette[v * 0.1])
for v in range(11)])
self.orientation = Qt.Horizontal
self.set_orientation(Qt.Vertical)
def itemChange(self, change, value):
if change == QGraphicsItem.ItemSelectedChange:
selected = bool(qtcompat.qunwrap(value))
self.shapeItem.setSelected(selected)
self.captionTextItem.setSelectionState(selected)
self.backgroundItem.setVisible(selected)
elif change == QGraphicsItem.ItemPositionHasChanged:
self.positionChanged.emit()
return QGraphicsObject.itemChange(self, change, value)
def __init__(self, parent=None, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemHasNoContents)
self.setFlag(QGraphicsItem.ItemIsFocusable)
self.__line = QLineF()
self.__points = \
[ControlPoint(self, ControlPoint.TopLeft), # TopLeft is line start
ControlPoint(self, ControlPoint.BottomRight) # line end
]
self.__activeControl = None
if self.scene():
self.__installFilter()
for p in self.__points:
p.setFlag(QGraphicsItem.ItemIsFocusable)
p.setFocusProxy(self)
def __init__(self, widget_description=None, parent=None, **kwargs):
self.__boundingRect = None
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemSendsGeometryChanges, True)
self.setFlag(QGraphicsItem.ItemHasNoContents, True)
self.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.setFlag(QGraphicsItem.ItemIsMovable, True)
self.setFlag(QGraphicsItem.ItemIsFocusable, True)
# central body shape item
self.shapeItem = None
# in/output anchor items
self.inputAnchorItem = None
self.outputAnchorItem = None
# title text item
self.captionTextItem = None
# error, warning, info items
self.errorItem = None
self.warningItem = None
self.infoItem = None
# background when selected
self.backgroundItem = None
self.__title = ""
self.__processingState = 0
self.__progress = -1
self.__statusMessage = ""
self.__error = None
self.__warning = None
self.__info = None
self.__anchorLayout = None
self.__animationEnabled = False
self.setZValue(self.Z_VALUE)
self.setupGraphics()
self.setWidgetDescription(widget_description)
def __init__(self, parent=None, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemHasNoContents)
self.setFlag(QGraphicsItem.ItemIsFocusable)
self.__line = QLineF()
self.__points = [
ControlPoint(self, ControlPoint.TopLeft), # TopLeft is line start
ControlPoint(self, ControlPoint.BottomRight), # line end
]
self.__activeControl = None
if self.scene():
self.__installFilter()
for p in self.__points:
p.setFlag(QGraphicsItem.ItemIsFocusable)
p.setFocusProxy(self)
def __init__(self, name, point, parent):
QGraphicsObject.__init__(self, parent)
self.text_item = QGraphicsTextItem(name, self)
if point:
s = point.size()
height = max(2*s, self.text_item.boundingRect().height())
else:
height = self.text_item.boundingRect().height()
p = 0.5 * height
self.text_item.setPos(height, 0)
self.point_item = point
if point:
self.point_item.setParentItem(self)
self.point_item.setPos(p, p)
self._rect = QRectF(0, 0, height + self.text_item.boundingRect().width(), height )
self.rect_item = QGraphicsRectItem(self._rect, self)
self.rect_item.setPen(QPen(Qt.NoPen))
self.rect_item.stackBefore(self.text_item)
if self.point_item:
self.rect_item.stackBefore(self.point_item)
def __init__(self, widget_description=None, parent=None, **kwargs):
self.__boundingRect = None
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemSendsGeometryChanges, True)
self.setFlag(QGraphicsItem.ItemHasNoContents, True)
self.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.setFlag(QGraphicsItem.ItemIsMovable, True)
self.setFlag(QGraphicsItem.ItemIsFocusable, True)
# central body shape item
self.shapeItem = None
# in/output anchor items
self.inputAnchorItem = None
self.outputAnchorItem = None
# title text item
self.captionTextItem = None
# error, warning, info items
self.errorItem = None
self.warningItem = None
self.infoItem = None
self.__title = ""
self.__processingState = 0
self.__progress = -1
self.__statusMessage = ""
self.__error = None
self.__warning = None
self.__info = None
self.__anchorLayout = None
self.__animationEnabled = False
self.setZValue(self.Z_VALUE)
self.setupGraphics()
self.setWidgetDescription(widget_description)
def __init__(self, name, point, parent):
QGraphicsObject.__init__(self, parent)
self.text_item = QGraphicsTextItem(name, self)
if point:
s = point.size()
height = max(2 * s, self.text_item.boundingRect().height())
else:
height = self.text_item.boundingRect().height()
p = 0.5 * height
self.text_item.setPos(height, 0)
self.point_item = point
if point:
self.point_item.setParentItem(self)
self.point_item.setPos(p, p)
self._rect = QRectF(0, 0,
height + self.text_item.boundingRect().width(),
height)
self.rect_item = QGraphicsRectItem(self._rect, self)
self.rect_item.setPen(QPen(Qt.NoPen))
self.rect_item.stackBefore(self.text_item)
if self.point_item:
self.rect_item.stackBefore(self.point_item)
def sceneEventFilter(self, obj, event):
try:
obj = toGraphicsObjectIfPossible(obj)
if isinstance(obj, ControlPoint):
etype = event.type()
if etype == QEvent.GraphicsSceneMousePress:
self.__setActiveControl(obj)
elif etype == QEvent.GraphicsSceneMouseRelease:
self.__setActiveControl(None)
return QGraphicsObject.sceneEventFilter(self, obj, event)
except Exception:
log.error("", exc_info=True)
def sceneEventFilter(self, obj, event):
try:
obj = toGraphicsObjectIfPossible(obj)
if isinstance(obj, ControlPoint):
etype = event.type()
if etype == QEvent.GraphicsSceneMousePress:
self.__setActiveControl(obj)
elif etype == QEvent.GraphicsSceneMouseRelease:
self.__setActiveControl(None)
return QGraphicsObject.sceneEventFilter(self, obj, event)
except Exception:
log.error("", exc_info=True)
def __init__(self, parent=None, rect=None, constraints=0, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemHasNoContents)
self.setFlag(QGraphicsItem.ItemIsFocusable)
self.__rect = rect if rect is not None else QRectF()
self.__margins = QMargins()
points = \
[ControlPoint(self, ControlPoint.Left),
ControlPoint(self, ControlPoint.Top),
ControlPoint(self, ControlPoint.TopLeft),
ControlPoint(self, ControlPoint.Right),
ControlPoint(self, ControlPoint.TopRight),
ControlPoint(self, ControlPoint.Bottom),
ControlPoint(self, ControlPoint.BottomLeft),
ControlPoint(self, ControlPoint.BottomRight)
]
assert(points == sorted(points, key=lambda p: p.anchor()))
self.__points = dict((p.anchor(), p) for p in points)
if self.scene():
self.__installFilter()
for p in points:
p.setFlag(QGraphicsItem.ItemIsFocusable)
p.setFocusProxy(self)
self.controlPoint(ControlPoint.Top).setConstraint(Qt.Vertical)
self.controlPoint(ControlPoint.Bottom).setConstraint(Qt.Vertical)
self.controlPoint(ControlPoint.Left).setConstraint(Qt.Horizontal)
self.controlPoint(ControlPoint.Right).setConstraint(Qt.Horizontal)
self.__constraints = constraints
self.__activeControl = None
self.__pointsLayout()
def __init__(self, parent=None, rect=None, constraints=0, **kwargs):
QGraphicsObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemHasNoContents)
self.setFlag(QGraphicsItem.ItemIsFocusable)
self.__rect = rect if rect is not None else QRectF()
self.__margins = QMargins()
points = [
ControlPoint(self, ControlPoint.Left),
ControlPoint(self, ControlPoint.Top),
ControlPoint(self, ControlPoint.TopLeft),
ControlPoint(self, ControlPoint.Right),
ControlPoint(self, ControlPoint.TopRight),
ControlPoint(self, ControlPoint.Bottom),
ControlPoint(self, ControlPoint.BottomLeft),
ControlPoint(self, ControlPoint.BottomRight),
]
assert points == sorted(points, key=lambda p: p.anchor())
self.__points = dict((p.anchor(), p) for p in points)
if self.scene():
self.__installFilter()
for p in points:
p.setFlag(QGraphicsItem.ItemIsFocusable)
p.setFocusProxy(self)
self.controlPoint(ControlPoint.Top).setConstraint(Qt.Vertical)
self.controlPoint(ControlPoint.Bottom).setConstraint(Qt.Vertical)
self.controlPoint(ControlPoint.Left).setConstraint(Qt.Horizontal)
self.controlPoint(ControlPoint.Right).setConstraint(Qt.Horizontal)
self.__constraints = constraints
self.__activeControl = None
self.__pointsLayout()
def __init__(self, graph, scene):
QGraphicsObject.__init__(self)
if scene:
scene.addItem(self)
self.graph = graph
self.curves = []
self.items = {}
self.attributes = []
self.point_attrs = {}
self.point_vals = {}
self.default_values = {
PointColor : Qt.black,
PointSize : 8,
PointSymbol : OWPoint.Ellipse
}
self.box_rect = QRectF()
self.setFiltersChildEvents(True)
self.setFlag(self.ItemHasNoContents, True)
self.mouse_down = False
self._orientation = Qt.Vertical
self.max_size = QSizeF()
self._floating = True
self._floating_animation = None
self._mouse_down_pos = QPointF()
def __init__(self, graph, scene):
QGraphicsObject.__init__(self)
if scene:
scene.addItem(self)
self.graph = graph
self.curves = []
self.items = {}
self.attributes = []
self.point_attrs = {}
self.point_vals = {}
self.default_values = {
PointColor: Qt.black,
PointSize: 8,
PointSymbol: OWPoint.Ellipse
}
self.box_rect = QRectF()
self.setFiltersChildEvents(True)
self.setFlag(self.ItemHasNoContents, True)
self.mouse_down = False
self._orientation = Qt.Vertical
self.max_size = QSizeF()
self._floating = True
self._floating_animation = None
self._mouse_down_pos = QPointF()
def sceneEventFilter(self, obj, event):
try:
obj = toGraphicsObjectIfPossible(obj)
if isinstance(obj, ControlPoint):
etype = event.type()
if (etype == QEvent.GraphicsSceneMousePress
and event.button() == Qt.LeftButton):
self.__setActiveControl(obj)
elif (etype == QEvent.GraphicsSceneMouseRelease
and event.button() == Qt.LeftButton):
self.__setActiveControl(None)
except Exception:
log.error("Error in 'ControlPointRect.sceneEventFilter'",
exc_info=True)
return QGraphicsObject.sceneEventFilter(self, obj, event)
def itemChange(self, change, value):
if change == QGraphicsItem.ItemScenePositionHasChanged:
self.scenePositionChanged.emit(value)
return QGraphicsObject.itemChange(self, change, value)
def __init__(self, *args):
QGraphicsObject.__init__(self, *args)
self.setFlag(QGraphicsItem.ItemSendsScenePositionChanges, True)
self.setFlag(QGraphicsItem.ItemHasNoContents, True)
self.__direction = QPointF()
def contextMenuEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
return QGraphicsObject.contextMenuEvent(self, event)
else:
event.ignore()
def mouseDoubleClickEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
QGraphicsObject.mouseDoubleClickEvent(self, event)
QTimer.singleShot(0, self.activated.emit)
else:
event.ignore()
def itemChange(self, change, value):
if change == QGraphicsItem.ItemSceneHasChanged:
if self.scene():
self.__installFilter()
return QGraphicsObject.itemChange(self, change, value)
def focusOutEvent(self, event):
self.shapeItem.setHasFocus(False)
return QGraphicsObject.focusOutEvent(self, event)
def focusInEvent(self, event):
self.shapeItem.setHasFocus(True)
return QGraphicsObject.focusInEvent(self, event)
def itemChange(self, change, value):
if change == QGraphicsObject.ItemPositionHasChanged:
self.positionChanged.emit()
self.positionChanged[QPointF].emit(value)
return QGraphicsObject.itemChange(self, change, value)
def mousePressEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
return QGraphicsObject.mousePressEvent(self, event)
else:
event.ignore()
def hoverLeaveEvent(self, event):
# Remove the event filter to prevent unnecessary work in
# scene event filter when not needed
self.curveItem.removeSceneEventFilter(self)
return QGraphicsObject.hoverLeaveEvent(self, event)
def __init__(self, *args):
QGraphicsObject.__init__(self, *args)
self.setFlag(QGraphicsItem.ItemSendsScenePositionChanges, True)
self.setFlag(QGraphicsItem.ItemHasNoContents, True)
self.__direction = QPointF()
def itemChange(self, change, value):
if change == QGraphicsItem.ItemScenePositionHasChanged:
self.scenePositionChanged.emit(value)
return QGraphicsObject.itemChange(self, change, value)
def itemChange(self, change, value):
if change == QGraphicsItem.ItemSceneHasChanged:
if self.scene():
self.__installFilter()
return QGraphicsObject.itemChange(self, change, value)
def focusOutEvent(self, event):
self.shapeItem.setHasFocus(False)
return QGraphicsObject.focusOutEvent(self, event)
def event(self, event):
if event.type() == QEvent.LayoutRequest:
self.activate()
return True
return QGraphicsObject.event(self, event)
def focusInEvent(self, event):
self.shapeItem.setHasFocus(True)
return QGraphicsObject.focusInEvent(self, event)
def hoverLeaveEvent(self, event):
# Remove the event filter to prevent unnecessary work in
# scene event filter when not needed
self.curveItem.removeSceneEventFilter(self)
return QGraphicsObject.hoverLeaveEvent(self, event)
def mousePressEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
return QGraphicsObject.mousePressEvent(self, event)
else:
event.ignore()
def contextMenuEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
return QGraphicsObject.contextMenuEvent(self, event)
else:
event.ignore()
def mouseDoubleClickEvent(self, event):
if self.shapeItem.path().contains(event.pos()):
QGraphicsObject.mouseDoubleClickEvent(self, event)
QTimer.singleShot(0, self.activated.emit)
else:
event.ignore()
def event(self, event):
if event.type() == QEvent.LayoutRequest:
self.activate()
return True
return QGraphicsObject.event(self, event)
