def __updateText(self):
self.prepareGeometryChange()
self.__boundingRect = None
if self.__sourceName or self.__sinkName:
if self.__sourceName != self.__sinkName:
text = "{0} \u2192 {1}".format(self.__sourceName,
self.__sinkName)
else:
# If the names are the same show only one.
# Is this right? If the sink has two input channels of the
# same type having the name on the link help elucidate
# the scheme.
text = self.__sourceName
else:
text = ""
self.linkTextItem.setPlainText(text)
path = self.curveItem.curvePath()
if not path.isEmpty():
center = path.pointAtPercent(0.5)
angle = path.angleAtPercent(0.5)
brect = self.linkTextItem.boundingRect()
transform = QTransform()
transform.translate(center.x(), center.y())
transform.rotate(-angle)
# Center and move above the curve path.
transform.translate(-brect.width() / 2, -brect.height())
self.linkTextItem.setTransform(transform)
def __updateText(self):
self.prepareGeometryChange()
self.__boundingRect = None
if self.__sourceName or self.__sinkName:
if self.__sourceName != self.__sinkName:
text = "{0} \u2192 {1}".format(self.__sourceName,
self.__sinkName)
else:
# If the names are the same show only one.
# Is this right? If the sink has two input channels of the
# same type having the name on the link help elucidate
# the scheme.
text = self.__sourceName
else:
text = ""
self.linkTextItem.setPlainText(text)
path = self.curveItem.curvePath()
if not path.isEmpty():
center = path.pointAtPercent(0.5)
angle = path.angleAtPercent(0.5)
brect = self.linkTextItem.boundingRect()
transform = QTransform()
transform.translate(center.x(), center.y())
transform.rotate(-angle)
# Center and move above the curve path.
transform.translate(-brect.width() / 2, -brect.height())
self.linkTextItem.setTransform(transform)
def __updateText(self):
# type: () -> None
self.prepareGeometryChange()
self.__boundingRect = None
if self.__sourceName or self.__sinkName:
if self.__sourceName != self.__sinkName:
text = ("<nobr>{0}</nobr> \u2192 <nobr>{1}</nobr>"
.format(escape(self.__sourceName),
escape(self.__sinkName)))
else:
# If the names are the same show only one.
# Is this right? If the sink has two input channels of the
# same type having the name on the link help elucidate
# the scheme.
text = escape(self.__sourceName)
else:
text = ""
self.linkTextItem.setHtml('<div align="center">{0}</div>'
.format(text))
path = self.curveItem.curvePath()
# Constrain the text width if it is too long to fit on a single line
# between the two ends
if not path.isEmpty():
# Use the distance between the start/end points as a measure of
# available space
diff = path.pointAtPercent(0.0) - path.pointAtPercent(1.0)
available_width = math.sqrt(diff.x() ** 2 + diff.y() ** 2)
# Get the ideal text width if it was unconstrained
doc = self.linkTextItem.document().clone(self)
doc.setTextWidth(-1)
idealwidth = doc.idealWidth()
doc.deleteLater()
# Constrain the text width but not below a certain min width
minwidth = 100
textwidth = max(minwidth, min(available_width, idealwidth))
self.linkTextItem.setTextWidth(textwidth)
else:
# Reset the fixed width
self.linkTextItem.setTextWidth(-1)
if not path.isEmpty():
center = path.pointAtPercent(0.5)
angle = path.angleAtPercent(0.5)
brect = self.linkTextItem.boundingRect()
transform = QTransform()
transform.translate(center.x(), center.y())
transform.rotate(-angle)
# Center and move above the curve path.
transform.translate(-brect.width() / 2, -brect.height())
self.linkTextItem.setTransform(transform)
def __updateText(self):
self.prepareGeometryChange()
self.__boundingRect = None
if self.__sourceName or self.__sinkName:
if self.__sourceName != self.__sinkName:
text = ("<nobr>{0}</nobr> \u2192 <nobr>{1}</nobr>"
.format(escape(self.__sourceName),
escape(self.__sinkName)))
else:
# If the names are the same show only one.
# Is this right? If the sink has two input channels of the
# same type having the name on the link help elucidate
# the scheme.
text = escape(self.__sourceName)
else:
text = ""
self.linkTextItem.setHtml('<div align="center">{0}</div>'
.format(text))
path = self.curveItem.curvePath()
# Constrain the text width if it is too long to fit on a single line
# between the two ends
if not path.isEmpty():
# Use the distance between the start/end points as a measure of
# available space
diff = path.pointAtPercent(0.0) - path.pointAtPercent(1.0)
available_width = math.sqrt(diff.x() ** 2 + diff.y() ** 2)
# Get the ideal text width if it was unconstrained
doc = self.linkTextItem.document().clone(self)
doc.setTextWidth(-1)
idealwidth = doc.idealWidth()
doc.deleteLater()
# Constrain the text width but not below a certain min width
minwidth = 100
textwidth = max(minwidth, min(available_width, idealwidth))
self.linkTextItem.setTextWidth(textwidth)
else:
# Reset the fixed width
self.linkTextItem.setTextWidth(-1)
if not path.isEmpty():
center = path.pointAtPercent(0.5)
angle = path.angleAtPercent(0.5)
brect = self.linkTextItem.boundingRect()
transform = QTransform()
transform.translate(center.x(), center.y())
transform.rotate(-angle)
# Center and move above the curve path.
transform.translate(-brect.width() / 2, -brect.height())
self.linkTextItem.setTransform(transform)
def pixmapTransform(self) -> QTransform:
if self.__pixmap.isNull():
return QTransform()
pxsize = QSizeF(self.__pixmap.size())
crect = self.contentsRect()
transform = QTransform()
transform = transform.translate(crect.left(), crect.top())
if self.__scaleContents:
csize = scaled(pxsize, crect.size(), self.__aspectMode)
else:
csize = pxsize
xscale = csize.width() / pxsize.width()
yscale = csize.height() / pxsize.height()
return transform.scale(xscale, yscale)
