本文整理汇总了Python中PyQt4.QtGui.QGraphicsPathItem类的典型用法代码示例。如果您正苦于以下问题：Python QGraphicsPathItem类的具体用法？Python QGraphicsPathItem怎么用？Python QGraphicsPathItem使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了QGraphicsPathItem类的15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: __init__
def __init__( self, edge, modObj, connObj ):
QGraphicsPathItem.__init__( self )
self.__edge = edge
self.__modObj = modObj
self.__connObj = connObj
startPoint = QPointF( edge.points[ 0 ][ 0 ], edge.points[ 0 ][ 1 ] )
painterPath = QPainterPath( startPoint )
index = 1
while index + 3 <= len( edge.points ):
painterPath.cubicTo(edge.points[index][0], edge.points[index][1],
edge.points[index+1][0],edge.points[index+1][1],
edge.points[index+2][0],edge.points[index+2][1])
index = index + 3
if index + 2 <= len( edge.points ):
painterPath.quadTo(edge.points[index+1][0], edge.points[index+1][1],
edge.points[index+2][0], edge.points[index+2][1])
index = index + 2
if index + 1 <= len( edge.points ):
painterPath.lineTo(edge.points[index+1][0], edge.points[index+1][1])
lastIndex = len( edge.points ) - 1
self.addArrow( painterPath,
edge.points[lastIndex-1][0],
edge.points[lastIndex-1][1],
edge.points[lastIndex][0],
edge.points[lastIndex][1] )
self.setPath( painterPath )
return示例2: __init__
def __init__(self, graphics, *args):
QGraphicsPathItem.__init__(self, *args)
path = path_from_graphics(graphics)
self.setPath(path)
self.setAcceptHoverEvents(True)
self._actions = []
self.link = None示例3: __init__
def __init__(self, parent, pos, angle, pit=False):
QGraphicsItemGroup.__init__(self, parent)
AbstractSector.__init__(self, pos, angle)
self.setZValue(3)
self.black = QGraphicsPathItem(self)
self.white = QGraphicsPathItem(self)
start = 3 * (_trackWidth / 2)
end = -start - abs(_pitDistance if pit else 0)
rowdelta = _trackWidth / 4
for item, y in [(self.black, -rowdelta),
(self.white, rowdelta)]:
item.setCacheMode(QGraphicsPathItem.DeviceCoordinateCache)
self.addToGroup(item)
path = QPainterPath()
path.moveTo(start, y)
path.lineTo(end, y)
path.moveTo(end, -y)
path.lineTo(start, -y)
item.setPath(path)
pen = QPen(Qt.black, _trackWidth / 2)
pen.setCapStyle(Qt.FlatCap)
pen.setDashPattern([1, 1])
self.black.setPen(QPen(pen))
pen.setColor(Qt.white)
self.white.setPen(pen)示例4: __init__
def __init__(self, radiusOut, raiusIn, angle, arcLen, parent=None):
QGraphicsPathItem.__init__(self, parent=parent)
self._radiusOut = radiusOut
self._raiusIn = raiusIn
self._angle = angle
self._arcLen = arcLen
self._pen = QPen(QColor('#000000'))
self._pen.setWidth(1)
self.setPen(self._pen)
self._hoverPen = QPen(QColor('#000000'))
self._hoverPen.setWidth(2)
brush = QBrush(QColor('#FF9966'))
self.setBrush(brush)
rectOut = QRectF(-radiusOut, -radiusOut, radiusOut*2.0, radiusOut*2.0)
rectIn = QRectF(-raiusIn, -raiusIn, raiusIn*2.0, raiusIn*2.0)
startAngle = angle - arcLen/2.0
endAngle = angle + arcLen/2.0
path = QPainterPath()
path.arcMoveTo(rectIn, startAngle)
path.arcTo(rectOut, startAngle, arcLen)
path.arcTo(rectIn, endAngle, 0)
path.arcTo(rectIn, endAngle, -arcLen)
self.setPath(path)
self._isHover = False
self._ioDragFirstPos = None示例5: __init__
def __init__(self, longitudes, latitudes, scene, parent=None):
QGraphicsPathItem.__init__(self, parent=parent, scene=scene)
assert len(longitudes) == len(latitudes)
self._longitudes = np.array(longitudes, dtype=np.float32)
self._latitudes = np.array(latitudes, dtype=np.float32)
self.updatePosition(scene)示例6: paint
def paint( self, painter, option, widget ):
""" Draws a curve and then adds an arrow """
pen = QPen( QColor( 0, 0, 0) )
pen.setWidth( 2 )
pen.setStyle( Qt.DotLine )
self.setPen( pen )
QGraphicsPathItem.paint( self, painter, option, widget )
return示例7: __init__
def __init__(self, parent=None):
QGraphicsPathItem.__init__(self, parent=parent)
self._startName = None
self._endName = None
self._path = None
self._startPos = None
self._endPos = None
pen = QPen(QBrush(QColor(Qt.black)), 2.0)
self.setPen(pen)示例8: __init__
def __init__( self, settings, x1, y1, x2, y2 ):
QGraphicsPathItem.__init__( self )
self.__settings = settings
path = QPainterPath()
path.moveTo( x1, y1 )
path.lineTo( x2, y2 )
self.setPath( path )
self.penStyle = None
self.penColor = None
self.penWidth = None
return示例9: ParallelCoordinatesCurve
class ParallelCoordinatesCurve(OWCurve):
def __init__(self, n_attributes, y_values, color, name=""):
OWCurve.__init__(self, tooltip=name)
self._item = QGraphicsPathItem(self)
self.path = QPainterPath()
self.fitted = False
self.n_attributes = n_attributes
self.n_rows = int(len(y_values) / n_attributes)
self.set_style(OWCurve.Lines)
if isinstance(color, tuple):
self.set_pen(QPen(QColor(*color)))
else:
self.set_pen(QPen(QColor(color)))
x_values = list(range(n_attributes)) * self.n_rows
self.set_data(x_values, y_values)
def update_properties(self):
self.redraw_path()
def redraw_path(self):
self.path = QPainterPath()
for segment in self.segment(self.data()):
if self.fitted:
self.draw_cubic_path(segment)
else:
self.draw_normal_path(segment)
self._item.setPath(self.graph_transform().map(self.path))
self._item.setPen(self.pen())
def segment(self, data):
for i in range(self.n_rows):
yield data[i * self.n_attributes:(i + 1) * self.n_attributes]
def draw_cubic_path(self, segment):
for (x1, y1), (x2, y2) in zip(segment, segment[1:]):
self.path.moveTo(x1, y1)
self.path.cubicTo(QPointF(x1 + 0.5, y1),
QPointF(x2 - 0.5, y2), QPointF(x2, y2))
def draw_normal_path(self, segment):
if not segment:
return
x, y = segment[0]
self.path.moveTo(x, y)
for x, y in segment[1:]:
self.path.lineTo(x, y)示例10: _addPath
def _addPath(self):
iNode = 2 * model._nodes.index(self.__node)
x0,y0 = record.states[0][iNode:iNode+2]
path = QPainterPath()
path.moveTo(x0,-y0)
item = QGraphicsPathItem()
item.setPen( QPen( QColor(0,0,255), 0 ) )
item.setPath(path)
self._path = item
for state in record.states[1:]:
self._addPoint(state)
if hasattr(record,'changeListeners'):
record.changeListeners.append(self._addPoint)
groupCurves.addToGroup(item)示例11: __init__
def __init__(self, parent=None, **kwargs):
Annotation.__init__(self, parent, **kwargs)
self.setFlag(QGraphicsItem.ItemIsMovable)
self.setFlag(QGraphicsItem.ItemIsSelectable)
self.setFocusPolicy(Qt.ClickFocus)
self.__textMargins = (2, 2, 2, 2)
rect = self.geometry().translated(-self.pos())
self.__framePathItem = QGraphicsPathItem(self)
self.__framePathItem.setPen(QPen(Qt.NoPen))
self.__textItem = GraphicsTextEdit(self)
self.__textItem.setPlaceholderText(self.tr("Enter text here"))
self.__textItem.setPos(2, 2)
self.__textItem.setTextWidth(rect.width() - 4)
self.__textItem.setTabChangesFocus(True)
self.__textItem.setTextInteractionFlags(Qt.NoTextInteraction)
self.__textItem.setFont(self.font())
self.__textInteractionFlags = Qt.NoTextInteraction
layout = self.__textItem.document().documentLayout()
layout.documentSizeChanged.connect(self.__onDocumentSizeChanged)
self.__updateFrame()示例12: paint
def paint( self, painter, option, widget ):
color = self.__settings.lineColor
if self.penColor:
color = self.penColor
width = self.__settings.lineWidth
if self.penWidth:
width = self.penWidth
pen = QPen( color )
pen.setWidth( width )
pen.setCapStyle( Qt.FlatCap )
pen.setJoinStyle( Qt.RoundJoin )
if self.penStyle:
pen.setStyle( self.penStyle )
self.setPen( pen )
QGraphicsPathItem.paint( self, painter, option, widget )
return示例13: itemChange
def itemChange(self, change, value):
if change == QGraphicsPathItem.ItemSelectedHasChanged:
if value.toBool():
self.setZValue(self.zValue() + 1)
else:
self.setZValue(self.zValue() - 1)
return QGraphicsPathItem.itemChange(self, change, value)示例14: __init__
def __init__(self, p0, p1, parent=None):
QGraphicsPathItem.__init__(self, parent=parent)
self._p0 = p0
self._p1 = p1
self._startPoint = QGraphicsEllipseItem(-3, -3, 6, 6, parent=self)
self._startPoint.setPos(p0)
self._endPoint = QGraphicsEllipseItem(-3, -3, 6, 6, parent=self)
self._endPoint.setVisible(False)
brush = QBrush(QColor(Qt.black))
self._startPoint.setBrush(brush)
self._endPoint.setBrush(brush)
pen = QPen(brush, 2.0)
self.setPen(pen)示例15: __init__
def __init__(self, plot=None):
orangeqt.PlotItem.__init__(self)
self._x_enabled = True
self._y_enabled = True
self._path_item = QGraphicsPathItem(self)
self.set_in_background(True)
if plot:
self.attach(plot)
self._path_item.setPen(plot.color(OWPalette.Grid))