def setShapeRect(self, rect):
"""
Set the item's shape `rect`. The item should be confined within
this rect.
"""
path = QPainterPath()
path.addEllipse(rect)
self.setPath(path)
self.__shapeRect = rect
def setShapeRect(self, rect):
"""
Set the item's shape `rect`. The item should be confined within
this rect.
"""
path = QPainterPath()
path.addEllipse(rect)
self.setPath(path)
self.__shapeRect = rect
def test_graphicspathobject(self):
obj = GraphicsPathObject()
path = QPainterPath()
obj.setFlag(GraphicsPathObject.ItemIsMovable)
path.addEllipse(20, 20, 50, 50)
obj.setPath(path)
self.assertEqual(obj.path(), path)
self.assertTrue(obj.path() is not path,
msg="setPath stores the path not a copy")
brect = obj.boundingRect()
self.assertTrue(brect.contains(path.boundingRect()))
with self.assertRaises(TypeError):
obj.setPath("This is not a path")
brush = QBrush(QColor("#ffbb11"))
obj.setBrush(brush)
self.assertEqual(obj.brush(), brush)
self.assertTrue(obj.brush() is not brush,
"setBrush stores the brush not a copy")
pen = QPen(QColor("#FFFFFF"), 1.4)
obj.setPen(pen)
self.assertEqual(obj.pen(), pen)
self.assertTrue(obj.pen() is not pen,
"setPen stores the pen not a copy")
brect = obj.boundingRect()
self.assertGreaterEqual(area(brect), (50 + 1.4 * 2) ** 2)
self.assertIsInstance(obj.shape(), QPainterPath)
positions = []
obj.positionChanged[QPointF].connect(positions.append)
pos = QPointF(10, 10)
obj.setPos(pos)
self.assertEqual(positions, [pos])
self.scene.addItem(obj)
self.view.show()
self.app.exec_()
def test_layout(self):
file_desc, disc_desc, bayes_desc = self.widget_desc()
file_item = NodeItem()
file_item.setWidgetDescription(file_desc)
file_item.setPos(0, 150)
self.scene.add_node_item(file_item)
bayes_item = NodeItem()
bayes_item.setWidgetDescription(bayes_desc)
bayes_item.setPos(200, 0)
self.scene.add_node_item(bayes_item)
disc_item = NodeItem()
disc_item.setWidgetDescription(disc_desc)
disc_item.setPos(200, 300)
self.scene.add_node_item(disc_item)
link = LinkItem()
link.setSourceItem(file_item)
link.setSinkItem(disc_item)
self.scene.add_link_item(link)
link = LinkItem()
link.setSourceItem(file_item)
link.setSinkItem(bayes_item)
self.scene.add_link_item(link)
layout = AnchorLayout()
self.scene.addItem(layout)
self.scene.set_anchor_layout(layout)
layout.invalidateNode(file_item)
layout.activate()
p1, p2 = file_item.outputAnchorItem.anchorPositions()
self.assertGreater(p1, p2)
self.scene.node_item_position_changed.connect(layout.invalidateNode)
path = QPainterPath()
path.addEllipse(125, 0, 50, 300)
def advance():
t = time.clock()
bayes_item.setPos(path.pointAtPercent(t % 1.0))
disc_item.setPos(path.pointAtPercent((t + 0.5) % 1.0))
self.singleShot(20, advance)
advance()
self.app.exec_()
def test_layout(self):
one_desc, negate_desc, cons_desc = self.widget_desc()
one_item = NodeItem()
one_item.setWidgetDescription(one_desc)
one_item.setPos(0, 150)
self.scene.add_node_item(one_item)
cons_item = NodeItem()
cons_item.setWidgetDescription(cons_desc)
cons_item.setPos(200, 0)
self.scene.add_node_item(cons_item)
negate_item = NodeItem()
negate_item.setWidgetDescription(negate_desc)
negate_item.setPos(200, 300)
self.scene.add_node_item(negate_item)
link = LinkItem()
link.setSourceItem(one_item)
link.setSinkItem(negate_item)
self.scene.add_link_item(link)
link = LinkItem()
link.setSourceItem(one_item)
link.setSinkItem(cons_item)
self.scene.add_link_item(link)
layout = AnchorLayout()
self.scene.addItem(layout)
self.scene.set_anchor_layout(layout)
layout.invalidateNode(one_item)
layout.activate()
p1, p2 = one_item.outputAnchorItem.anchorPositions()
self.assertTrue(p1 > p2)
self.scene.node_item_position_changed.connect(layout.invalidateNode)
path = QPainterPath()
path.addEllipse(125, 0, 50, 300)
def advance():
t = time.process_time()
cons_item.setPos(path.pointAtPercent(t % 1.0))
negate_item.setPos(path.pointAtPercent((t + 0.5) % 1.0))
timer = QTimer(negate_item, interval=5)
timer.start()
timer.timeout.connect(advance)
self.qWait()
timer.stop()
def test_layout(self):
file_desc, disc_desc, bayes_desc = self.widget_desc()
file_item = NodeItem()
file_item.setWidgetDescription(file_desc)
file_item.setPos(0, 150)
self.scene.add_node_item(file_item)
bayes_item = NodeItem()
bayes_item.setWidgetDescription(bayes_desc)
bayes_item.setPos(200, 0)
self.scene.add_node_item(bayes_item)
disc_item = NodeItem()
disc_item.setWidgetDescription(disc_desc)
disc_item.setPos(200, 300)
self.scene.add_node_item(disc_item)
link = LinkItem()
link.setSourceItem(file_item)
link.setSinkItem(disc_item)
self.scene.add_link_item(link)
link = LinkItem()
link.setSourceItem(file_item)
link.setSinkItem(bayes_item)
self.scene.add_link_item(link)
layout = AnchorLayout()
self.scene.addItem(layout)
self.scene.set_anchor_layout(layout)
layout.invalidateNode(file_item)
layout.activate()
p1, p2 = file_item.outputAnchorItem.anchorPositions()
self.assertGreater(p1, p2)
self.scene.node_item_position_changed.connect(layout.invalidateNode)
path = QPainterPath()
path.addEllipse(125, 0, 50, 300)
def advance():
t = time.clock()
bayes_item.setPos(path.pointAtPercent(t % 1.0))
disc_item.setPos(path.pointAtPercent((t + 0.5) % 1.0))
self.singleShot(20, advance)
advance()
self.app.exec_()
def test_graphicspathobject(self):
obj = GraphicsPathObject()
path = QPainterPath()
obj.setFlag(GraphicsPathObject.ItemIsMovable)
path.addEllipse(20, 20, 50, 50)
obj.setPath(path)
self.assertEqual(obj.path(), path)
self.assertTrue(obj.path() is not path,
msg="setPath stores the path not a copy")
brect = obj.boundingRect()
self.assertTrue(brect.contains(path.boundingRect()))
with self.assertRaises(TypeError):
obj.setPath("This is not a path")
brush = QBrush(QColor("#ffbb11"))
obj.setBrush(brush)
self.assertEqual(obj.brush(), brush)
self.assertTrue(obj.brush() is not brush,
"setBrush stores the brush not a copy")
pen = QPen(QColor("#FFFFFF"), 1.4)
obj.setPen(pen)
self.assertEqual(obj.pen(), pen)
self.assertTrue(obj.pen() is not pen,
"setPen stores the pen not a copy")
brect = obj.boundingRect()
self.assertGreaterEqual(area(brect), (50 + 1.4 * 2)**2)
self.assertIsInstance(obj.shape(), QPainterPath)
positions = []
obj.positionChanged[QPointF].connect(positions.append)
pos = QPointF(10, 10)
obj.setPos(pos)
self.assertEqual(positions, [pos])
self.scene.addItem(obj)
self.view.show()
self.qWait()
def test_layout(self):
one_desc, negate_desc, cons_desc = self.widget_desc()
one_item = NodeItem()
one_item.setWidgetDescription(one_desc)
one_item.setPos(0, 150)
self.scene.add_node_item(one_item)
cons_item = NodeItem()
cons_item.setWidgetDescription(cons_desc)
cons_item.setPos(200, 0)
self.scene.add_node_item(cons_item)
negate_item = NodeItem()
negate_item.setWidgetDescription(negate_desc)
negate_item.setPos(200, 300)
self.scene.add_node_item(negate_item)
link = LinkItem()
link.setSourceItem(one_item)
link.setSinkItem(negate_item)
self.scene.add_link_item(link)
link = LinkItem()
link.setSourceItem(one_item)
link.setSinkItem(cons_item)
self.scene.add_link_item(link)
layout = AnchorLayout()
self.scene.addItem(layout)
self.scene.set_anchor_layout(layout)
layout.invalidateNode(one_item)
layout.activate()
p1, p2 = one_item.outputAnchorItem.anchorPositions()
self.assertTrue(p1 > p2)
self.scene.node_item_position_changed.connect(layout.invalidateNode)
path = QPainterPath()
path.addEllipse(125, 0, 50, 300)
def advance():
t = time.process_time()
cons_item.setPos(path.pointAtPercent(t % 1.0))
negate_item.setPos(path.pointAtPercent((t + 0.5) % 1.0))
timer = QTimer(negate_item, interval=20)
timer.start()
timer.timeout.connect(advance)
self.app.exec_()
def ellipse_path(center, a, b, rotation=0):
if not isinstance(center, QPointF):
center = QPointF(*center)
brect = QRectF(-a, -b, 2 * a, 2 * b)
path = QPainterPath()
path.addEllipse(brect)
if rotation != 0:
transform = QTransform().rotate(rotation)
path = transform.map(path)
path.translate(center)
return path
def ellipse_path(center, a, b, rotation=0):
if not isinstance(center, QPointF):
center = QPointF(*center)
brect = QRectF(-a, -b, 2 * a, 2 * b)
path = QPainterPath()
path.addEllipse(brect)
if rotation != 0:
transform = QTransform().rotate(rotation)
path = transform.map(path)
path.translate(center)
return path
def __init__(self, parent=None, anchor=0, **kwargs):
GraphicsPathObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemSendsGeometryChanges, False)
self.setAcceptedMouseButtons(Qt.LeftButton)
self.__constraint = 0
self.__constraintFunc = None
self.__anchor = 0
self.__initialPosition = None
self.setAnchor(anchor)
path = QPainterPath()
path.addEllipse(QRectF(-4, -4, 8, 8))
self.setPath(path)
self.setBrush(QBrush(Qt.lightGray, Qt.SolidPattern))
def __init__(self, parent=None, anchor=0, **kwargs):
GraphicsPathObject.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemSendsGeometryChanges, False)
self.setAcceptedMouseButtons(Qt.LeftButton)
self.__constraint = 0
self.__constraintFunc = None
self.__anchor = 0
self.__initialPosition = None
self.setAnchor(anchor)
path = QPainterPath()
path.addEllipse(QRectF(-4, -4, 8, 8))
self.setPath(path)
self.setBrush(QBrush(Qt.lightGray, Qt.SolidPattern))
def path_from_graphics(graphics):
"""
Return a constructed `QPainterPath` for a KEGG pathway graphics element.
"""
path = QPainterPath()
x, y, w, h = [int(graphics.get(c, 0)) for c in ["x", "y", "width", "height"]]
type = graphics.get("type", "rectangle")
if type == "rectangle":
path.addRect(QRectF(x - w / 2, y - h / 2, w, h))
elif type == "roundrectangle":
path.addRoundedRect(QRectF(x - w / 2, y - h / 2, w, h), 10, 10)
elif type == "circle":
path.addEllipse(QRectF(x - w / 2, y - h / 2, w, h))
else:
ValueError("Unknown graphics type %r." % type)
return path
def path_from_graphics(graphics):
"""
Return a constructed `QPainterPath` for a KEGG pathway graphics element.
"""
path = QPainterPath()
x, y, w, h = [int(graphics.get(c, 0)) for c in ["x", "y", "width", "height"]]
type = graphics.get("type", "rectangle")
if type == "rectangle":
path.addRect(QRectF(x - w / 2, y - h / 2, w, h))
elif type == "roundrectangle":
path.addRoundedRect(QRectF(x - w / 2, y - h / 2, w, h), 10, 10)
elif type == "circle":
path.addEllipse(QRectF(x - w / 2, y - h / 2, w, h))
else:
ValueError("Unknown graphics type %r." % type)
return path
def _define_symbols():
"""
Add symbol ? to ScatterPlotItemSymbols,
reflect the triangle to point upwards
"""
symbols = pyqtgraph.graphicsItems.ScatterPlotItem.Symbols
path = QPainterPath()
path.addEllipse(QRectF(-0.35, -0.35, 0.7, 0.7))
path.moveTo(-0.5, 0.5)
path.lineTo(0.5, -0.5)
path.moveTo(-0.5, -0.5)
path.lineTo(0.5, 0.5)
symbols["?"] = path
tr = QTransform()
tr.rotate(180)
symbols['t'] = tr.map(symbols['t'])
def _define_symbols():
"""
Add symbol ? to ScatterPlotItemSymbols,
reflect the triangle to point upwards
"""
symbols = pyqtgraph.graphicsItems.ScatterPlotItem.Symbols
path = QPainterPath()
path.addEllipse(QRectF(-0.35, -0.35, 0.7, 0.7))
path.moveTo(-0.5, 0.5)
path.lineTo(0.5, -0.5)
path.moveTo(-0.5, -0.5)
path.lineTo(0.5, 0.5)
symbols["?"] = path
tr = QTransform()
tr.rotate(180)
symbols['t'] = tr.map(symbols['t'])
def test_anchoritem(self):
anchoritem = NodeAnchorItem(None)
self.scene.addItem(anchoritem)
path = QPainterPath()
path.addEllipse(0, 0, 100, 100)
anchoritem.setAnchorPath(path)
anchor = AnchorPoint()
anchoritem.addAnchor(anchor)
ellipse1 = QGraphicsEllipseItem(-3, -3, 6, 6)
ellipse2 = QGraphicsEllipseItem(-3, -3, 6, 6)
self.scene.addItem(ellipse1)
self.scene.addItem(ellipse2)
anchor.scenePositionChanged.connect(ellipse1.setPos)
with self.assertRaises(ValueError):
anchoritem.addAnchor(anchor)
anchor1 = AnchorPoint()
anchoritem.addAnchor(anchor1)
anchor1.scenePositionChanged.connect(ellipse2.setPos)
self.assertSequenceEqual(anchoritem.anchorPoints(), [anchor, anchor1])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.5])
anchoritem.setAnchorPositions([0.5, 0.0])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.0])
def advance():
t = anchoritem.anchorPositions()
t = [(t + 0.05) % 1.0 for t in t]
anchoritem.setAnchorPositions(t)
timer = QTimer(anchoritem, interval=10)
timer.start()
timer.timeout.connect(advance)
self.qWait()
timer.stop()
def test_anchoritem(self):
anchoritem = NodeAnchorItem(None)
self.scene.addItem(anchoritem)
path = QPainterPath()
path.addEllipse(0, 0, 100, 100)
anchoritem.setAnchorPath(path)
anchor = AnchorPoint()
anchoritem.addAnchor(anchor)
ellipse1 = QGraphicsEllipseItem(-3, -3, 6, 6)
ellipse2 = QGraphicsEllipseItem(-3, -3, 6, 6)
self.scene.addItem(ellipse1)
self.scene.addItem(ellipse2)
anchor.scenePositionChanged.connect(ellipse1.setPos)
with self.assertRaises(ValueError):
anchoritem.addAnchor(anchor)
anchor1 = AnchorPoint()
anchoritem.addAnchor(anchor1)
anchor1.scenePositionChanged.connect(ellipse2.setPos)
self.assertSequenceEqual(anchoritem.anchorPoints(), [anchor, anchor1])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.5])
anchoritem.setAnchorPositions([0.5, 0.0])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.0])
def advance():
t = anchoritem.anchorPositions()
t = [(t + 0.05) % 1.0 for t in t]
anchoritem.setAnchorPositions(t)
timer = QTimer(anchoritem, interval=20)
timer.start()
timer.timeout.connect(advance)
self.app.exec_()
def __init__(self,
parent=None,
anchor=Free,
constraint=Qt.Orientation(0),
**kwargs):
# type: (Optional[QGraphicsItem], Anchor, Qt.Orientation, Any) -> None
super().__init__(parent, **kwargs)
self.setFlag(QGraphicsItem.ItemSendsGeometryChanges, False)
self.setAcceptedMouseButtons(Qt.LeftButton)
self.__constraint = constraint # type: Qt.Orientation
self.__constraintFunc = None # type: Optional[ConstraintFunc]
self.__anchor = ControlPoint.Free
self.__initialPosition = None # type: Optional[QPointF]
self.setAnchor(anchor)
path = QPainterPath()
path.addEllipse(QRectF(-4, -4, 8, 8))
self.setPath(path)
self.setBrush(QBrush(Qt.lightGray, Qt.SolidPattern))
def test_anchoritem(self):
anchoritem = NodeAnchorItem(None)
anchoritem.setAnimationEnabled(False)
self.scene.addItem(anchoritem)
path = QPainterPath()
path.addEllipse(0, 0, 100, 100)
anchoritem.setAnchorPath(path)
anchor = AnchorPoint()
anchoritem.addAnchor(anchor)
ellipse1 = QGraphicsEllipseItem(-3, -3, 6, 6)
ellipse2 = QGraphicsEllipseItem(-3, -3, 6, 6)
self.scene.addItem(ellipse1)
self.scene.addItem(ellipse2)
anchor.scenePositionChanged.connect(ellipse1.setPos)
with self.assertRaises(ValueError):
anchoritem.addAnchor(anchor)
anchor1 = AnchorPoint()
anchoritem.addAnchor(anchor1)
anchor1.scenePositionChanged.connect(ellipse2.setPos)
self.assertSequenceEqual(anchoritem.anchorPoints(), [anchor, anchor1])
self.assertSequenceEqual(anchoritem.anchorPositions(), [2 / 3, 1 / 3])
anchoritem.setAnchorPositions([0.5, 0.0])
self.assertSequenceEqual(anchoritem.anchorPositions(), [0.5, 0.0])
def advance():
t = anchoritem.anchorPositions()
t = [(t + 0.05) % 1.0 for t in t]
anchoritem.setAnchorPositions(t)
timer = QTimer(anchoritem, interval=10)
timer.start()
timer.timeout.connect(advance)
self.qWait()
timer.stop()
anchoritem.setAnchorOpen(True)
anchoritem.setHovered(True)
self.assertEqual(*[p.scenePos() for p in anchoritem.anchorPoints()])
anchoritem.setAnchorOpen(False)
self.assertNotEqual(*[p.scenePos() for p in anchoritem.anchorPoints()])
anchoritem.setAnchorOpen(False)
anchoritem.setHovered(True)
self.assertNotEqual(*[p.scenePos() for p in anchoritem.anchorPoints()])
anchoritem = NodeAnchorItem(None)
anchoritem.setSignals([
InputSignal("first", "object", "set_first"),
InputSignal("second", "object", "set_second")
])
self.assertListEqual(
anchoritem._NodeAnchorItem__pathStroker.dashPattern(),
list(anchoritem._NodeAnchorItem__unanchoredDash))
anchoritem.setAnchorOpen(True)
anchoritem.setHovered(True)
self.assertListEqual(
anchoritem._NodeAnchorItem__pathStroker.dashPattern(),
list(anchoritem._NodeAnchorItem__channelDash))
