def paint(self, painter, option, widget):
if not self.source() or not self.dest():
return
# Draw the line itself.
line = QtCore.QLineF(self.sourcePoint, self.destPoint)
if not(self.ColorEdgesFlag):
return
if line.length() == 0.0:
return
painter.setPen(QtGui.QPen(QtCore.Qt.black, 1, QtCore.Qt.SolidLine, QtCore.Qt.RoundCap, QtCore.Qt.RoundJoin))
painter.drawLine(line)
painter.setBrush(QtCore.Qt.black)
python类QLineF()的实例源码
def _draw_reticle(self):
if self._reticle is None or (self._reticle.size() != self.size()):
self._new_reticle()
dbm_lines = [QLineF(self._hz_to_x(self._low_frequency), self._dbm_to_y(dbm),
self._hz_to_x(self._high_frequency), self._dbm_to_y(dbm))
for dbm in numpy.arange(self._low_dbm, self._high_dbm, 20.0)]
dbm_labels = [(dbm, QPointF(self._hz_to_x(self._low_frequency) + 2, self._dbm_to_y(dbm) - 2))
for dbm in numpy.arange(self._low_dbm, self._high_dbm, 20.0)]
frequency_lines = [QLineF(self._hz_to_x(frequency), self._dbm_to_y(self._high_dbm),
self._hz_to_x(frequency), self._dbm_to_y(self._low_dbm))
for frequency in numpy.arange(self._low_frequency, self._high_frequency, self._frequency_step * 20.0)]
frequency_labels = [(frequency, QPointF(self._hz_to_x(frequency) + 2, self._dbm_to_y(self._high_dbm) + 10))
for frequency in numpy.arange(self._low_frequency, self._high_frequency, self._frequency_step * 10.0)]
painter = QtGui.QPainter(self._reticle)
try:
painter.setRenderHint(QtGui.QPainter.Antialiasing)
painter.setPen(Qt.blue)
# TODO: Removed to support old (<1.0) PySide API in Ubuntu 10.10
#painter.drawLines(dbm_lines)
for dbm_line in dbm_lines: painter.drawLine(dbm_line)
# TODO: Removed to support old (<1.0) PySide API in Ubuntu 10.10
#painter.drawLines(frequency_lines)
for frequency_line in frequency_lines: painter.drawLine(frequency_line)
painter.setPen(Qt.white)
for dbm, point in dbm_labels:
painter.drawText(point, '%+.0f' % dbm)
for frequency, point in frequency_labels:
painter.drawText(point, '%.02f' % (frequency / 1e6))
finally:
painter.end()
def adjust(self):
if not self.source() or not self.dest():
return
line = QtCore.QLineF(self.mapFromItem(self.source(), 0, 0), self.mapFromItem(self.dest(), 0, 0))
self.sourcePoint = line.p1() #+ edgeOffset
self.destPoint = line.p2() #- edgeOffset
def adjust(self):
if not self.source() or not self.dest():
return
line = QtCore.QLineF(self.mapFromItem(self.source(), 0, 0), self.mapFromItem(self.dest(), 0, 0))
length = line.length()
if length == 0.0:
return
edgeOffset = QtCore.QPointF((line.dx() * 10) / length, (line.dy() * 10) / length)
self.prepareGeometryChange()
self.sourcePoint = line.p1() + edgeOffset
self.destPoint = line.p2() - edgeOffset
def adjust(self):
if not self.source() or not self.dest():
return
# if self.weight == 0:
# return
line = QtCore.QLineF(self.mapFromItem(self.source(), 0, 0), self.mapFromItem(self.dest(), 0, 0))
self.sourcePoint = line.p1() #+ edgeOffset
self.destPoint = line.p2() #- edgeOffset
def adjust(self):
if not self.source() or not self.dest():
return
line = QtCore.QLineF(self.mapFromItem(self.source(), 0, 0), self.mapFromItem(self.dest(), 0, 0))
self.sourcePoint = line.p1() #+ edgeOffset
self.destPoint = line.p2() #- edgeOffset
def _draw_reticle(self):
if self._reticle is None or (self._reticle.size() != self.size()):
self._new_reticle()
dbm_lines = [QLineF(self._hz_to_x(self._low_frequency), self._dbm_to_y(dbm),
self._hz_to_x(self._high_frequency), self._dbm_to_y(dbm))
for dbm in numpy.arange(self._low_dbm, self._high_dbm, 20.0)]
dbm_labels = [(dbm, QPointF(self._hz_to_x(self._low_frequency) + 2, self._dbm_to_y(dbm) - 2))
for dbm in numpy.arange(self._low_dbm, self._high_dbm, 20.0)]
frequency_lines = [QLineF(self._hz_to_x(frequency), self._dbm_to_y(self._high_dbm),
self._hz_to_x(frequency), self._dbm_to_y(self._low_dbm))
for frequency in numpy.arange(self._low_frequency, self._high_frequency, self._frequency_step * 20.0)]
frequency_labels = [(frequency, QPointF(self._hz_to_x(frequency) + 2, self._dbm_to_y(self._high_dbm) + 10))
for frequency in numpy.arange(self._low_frequency, self._high_frequency, self._frequency_step * 10.0)]
painter = QtGui.QPainter(self._reticle)
try:
painter.setRenderHint(QtGui.QPainter.Antialiasing)
painter.setPen(Qt.blue)
# TODO: Removed to support old (<1.0) PySide API in Ubuntu 10.10
#painter.drawLines(dbm_lines)
for dbm_line in dbm_lines: painter.drawLine(dbm_line)
# TODO: Removed to support old (<1.0) PySide API in Ubuntu 10.10
#painter.drawLines(frequency_lines)
for frequency_line in frequency_lines: painter.drawLine(frequency_line)
painter.setPen(Qt.white)
for dbm, point in dbm_labels:
painter.drawText(point, '%+.0f' % dbm)
for frequency, point in frequency_labels:
painter.drawText(point, '%.02f' % (frequency / 1e6))
finally:
painter.end()
def _draw_reticle(self):
if self._reticle is None or (self._reticle.size() != self.size()):
self._new_reticle()
dbm_lines = [QLineF(self._hz_to_x(self._low_frequency), self._dbm_to_y(dbm),
self._hz_to_x(self._high_frequency), self._dbm_to_y(dbm))
for dbm in numpy.arange(self._low_dbm, self._high_dbm, 20.0)]
dbm_labels = [(dbm, QPointF(self._hz_to_x(self._low_frequency) + 2, self._dbm_to_y(dbm) - 2))
for dbm in numpy.arange(self._low_dbm, self._high_dbm, 20.0)]
frequency_lines = [QLineF(self._hz_to_x(frequency), self._dbm_to_y(self._high_dbm),
self._hz_to_x(frequency), self._dbm_to_y(self._low_dbm))
for frequency in numpy.arange(self._low_frequency, self._high_frequency, self._frequency_step * 20.0)]
frequency_labels = [(frequency, QPointF(self._hz_to_x(frequency) + 2, self._dbm_to_y(self._high_dbm) + 10))
for frequency in numpy.arange(self._low_frequency, self._high_frequency, self._frequency_step * 10.0)]
painter = QtGui.QPainter(self._reticle)
try:
painter.setRenderHint(QtGui.QPainter.Antialiasing)
painter.setPen(Qt.blue)
# TODO: Removed to support old (<1.0) PySide API in Ubuntu 10.10
#painter.drawLines(dbm_lines)
for dbm_line in dbm_lines: painter.drawLine(dbm_line)
# TODO: Removed to support old (<1.0) PySide API in Ubuntu 10.10
#painter.drawLines(frequency_lines)
for frequency_line in frequency_lines: painter.drawLine(frequency_line)
painter.setPen(Qt.white)
for dbm, point in dbm_labels:
painter.drawText(point, '%+.0f' % dbm)
for frequency, point in frequency_labels:
painter.drawText(point, '%.02f' % (frequency / 1e6))
finally:
painter.end()
def __init__(self, parent):
QtGui.QGraphicsItem.__init__(self, parent=parent)
self.p1 = QtCore.QPointF()
self.p2 = QtCore.QPointF()
self.line = QtCore.QLineF(self.p1, self.p2)
self.setOrientation(0., 0.)
self.setZValue(10000)
def _draw_reticle(self):
if self._reticle is None or (self._reticle.size() != self.size()):
self._new_reticle()
dbm_lines = [QLineF(self._hz_to_x(self._low_frequency), self._dbm_to_y(dbm),
self._hz_to_x(self._high_frequency), self._dbm_to_y(dbm))
for dbm in numpy.arange(self._low_dbm, self._high_dbm, 20.0)]
dbm_labels = [(dbm, QPointF(self._hz_to_x(self._low_frequency) + 2, self._dbm_to_y(dbm) - 2))
for dbm in numpy.arange(self._low_dbm, self._high_dbm, 20.0)]
frequency_lines = [QLineF(self._hz_to_x(frequency), self._dbm_to_y(self._high_dbm),
self._hz_to_x(frequency), self._dbm_to_y(self._low_dbm))
for frequency in numpy.arange(self._low_frequency, self._high_frequency, self._frequency_step * 20.0)]
frequency_labels = [(frequency, QPointF(self._hz_to_x(frequency) + 2, self._dbm_to_y(self._high_dbm) + 10))
for frequency in numpy.arange(self._low_frequency, self._high_frequency, self._frequency_step * 10.0)]
painter = QtGui.QPainter(self._reticle)
try:
painter.setRenderHint(QtGui.QPainter.Antialiasing)
painter.setPen(Qt.blue)
# TODO: Removed to support old (<1.0) PySide API in Ubuntu 10.10
#painter.drawLines(dbm_lines)
for dbm_line in dbm_lines: painter.drawLine(dbm_line)
# TODO: Removed to support old (<1.0) PySide API in Ubuntu 10.10
#painter.drawLines(frequency_lines)
for frequency_line in frequency_lines: painter.drawLine(frequency_line)
painter.setPen(Qt.white)
for dbm, point in dbm_labels:
painter.drawText(point, '%+.0f' % dbm)
for frequency, point in frequency_labels:
painter.drawText(point, '%.02f' % (frequency / 1e6))
finally:
painter.end()
def paint(self, painter, option, widget):
if not self.source() or not self.dest():
return
# Draw the line itself.
if self.ColorOnlySelectedNodesFlag:
if not(self.ColorEdgesFlag):
return
line = QtCore.QLineF(self.sourcePoint, self.destPoint)
# Should FIX the thickness values!!! fix me
painter.save()
"""
Painting the edge colors based on various factors
Not painting the edges if they are below certain threshold
Painting the edges to be black or just based on their colors
Painting highlighted colormaps
edge Thickness is a function of the weight of the edges
drawing z values so that they do not overalpp with others
"""
if self.ForCommunities:
painter.setPen(QtGui.QPen(self.communtiyColor1 ,self.communityWeight , QtCore.Qt.SolidLine, QtCore.Qt.RoundCap, QtCore.Qt.RoundJoin))
painter.drawLine(line)
else:
if self.ColorMap:
if self.EdgeThreshold < self.weight:
if not(self.ColorEdgesFlag):
self.setZValue(1)
self.EdgeColor.setAlpha(70)
painter.setPen(QtGui.QPen(self.EdgeColor ,self.edgeThickness , QtCore.Qt.SolidLine, QtCore.Qt.RoundCap, QtCore.Qt.RoundJoin))
painter.drawLine(line)
else:
self.setZValue(2)
if not(self.HighlightedColorMap):
# pointer to green
painter.setPen(QtGui.QPen(QtCore.Qt.darkGreen, self.edgeThickness , QtCore.Qt.SolidLine, QtCore.Qt.RoundCap, QtCore.Qt.RoundJoin))
else:
self.EdgeColor.setAlpha(255)
painter.setPen(QtGui.QPen(self.EdgeColor, self.thickHighlightedEdges , QtCore.Qt.SolidLine, QtCore.Qt.RoundCap, QtCore.Qt.RoundJoin))
painter.drawLine(line)
else:
if self.EdgeThreshold < self.weight:
if not(self.ColorEdgesFlag):
self.setZValue(1)
painter.setPen(QtGui.QPen(self.EdgeColor ,self.edgeThickness , QtCore.Qt.SolidLine, QtCore.Qt.RoundCap, QtCore.Qt.RoundJoin))
painter.drawLine(line)
else:
self.setZValue(2)
if not(self.HighlightedColorMap):
painter.setPen(QtGui.QPen(QtCore.Qt.darkGreen, self.edgeThickness , QtCore.Qt.SolidLine, QtCore.Qt.RoundCap, QtCore.Qt.RoundJoin))
else:
painter.setPen(QtGui.QPen(self.EdgeColor, self.thickHighlightedEdges , QtCore.Qt.SolidLine, QtCore.Qt.RoundCap, QtCore.Qt.RoundJoin))
painter.drawLine(line)
painter.restore()
