def createCompass(self, pos):
palette0 = QPalette()
for c in range(QPalette.NColorRoles):
colorRole = QPalette.ColorRole(c)
palette0.setColor(colorRole, QColor())
#palette0.setColor( QPalette.Base, palette().color( QPalette.backgroundRole() ).light( 120 ) )
palette0.setColor(QPalette.WindowText, palette0.color(QPalette.Base))
compass = Qwt.QwtCompass(self)
compass.setLineWidth(4)
compass.setFrameShadow(Qwt.QwtCompass.Sunken)
# pos <= 2 ? QwtCompass.Sunken : QwtCompass.Raised )
if pos == 0:
#A compass with a rose and no needle. Scale and rose are rotating.
compass.setMode(Qwt.QwtCompass.RotateScale)
rose = Qwt.QwtSimpleCompassRose(16, 2)
rose.setWidth(0.15)
compass.setRose(rose)
elif pos == 1:
#A windrose, with a scale indicating the main directions only
map = {}
map[0.0] = "N"
map[90.0] = "E"
map[180.0] = "S"
map[270.0] = "W"
compass.setScaleDraw(Qwt.QwtCompassScaleDraw(map))
rose = Qwt.QwtSimpleCompassRose(4, 1)
compass.setRose(rose)
compass.setNeedle(
Qwt.QwtCompassWindArrow(Qwt.QwtCompassWindArrow.Style2))
compass.setValue(60.0)
elif pos == 2:
#A compass with a rotating needle in darkBlue. Shows
#a ticks for each degree.
palette0.setColor(QPalette.Base, Qt.darkBlue)
palette0.setColor(QPalette.WindowText,
QColor(Qt.darkBlue)) #.dark( 120 ) )
palette0.setColor(QPalette.Text, Qt.white)
scaleDraw = Qwt.QwtCompassScaleDraw()
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Ticks, True)
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Labels, True)
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Backbone, False)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MinorTick, 1)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MediumTick, 1)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MajorTick, 3)
compass.setScaleDraw(scaleDraw)
compass.setScaleMaxMajor(36)
compass.setScaleMaxMinor(5)
compass.setNeedle(
Qwt.QwtCompassMagnetNeedle(
Qwt.QwtCompassMagnetNeedle.ThinStyle))
compass.setValue(220.0)
elif pos == 3:
#A compass without a frame, showing numbers as tick labels.
#The origin is at 220.0
palette0.setColor(QPalette.Base,
self.palette().color(self.backgroundRole()))
palette0.setColor(QPalette.WindowText, Qt.blue)
compass.setLineWidth(0)
map = {}
for d in range(0, 360, 60):
map[d] = "%.0f" % (d * 1.0)
scaleDraw = Qwt.QwtCompassScaleDraw(map)
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Ticks, True)
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Labels, True)
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Backbone, True)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MinorTick, 0)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MediumTick, 0)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MajorTick, 3)
compass.setScaleDraw(scaleDraw)
compass.setScaleMaxMajor(36)
compass.setScaleMaxMinor(5)
compass.setNeedle(
Qwt.QwtDialSimpleNeedle(Qwt.QwtDialSimpleNeedle.Ray, True,
Qt.white))
compass.setOrigin(220.0)
compass.setValue(20.0)
elif pos == 4:
#A compass showing another needle
scaleDraw = Qwt.QwtCompassScaleDraw()
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Ticks, True)
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Labels, True)
scaleDraw.enableComponent(Qwt.QwtAbstractScaleDraw.Backbone, False)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MinorTick, 0)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MediumTick, 0)
scaleDraw.setTickLength(Qwt.QwtScaleDiv.MajorTick, 3)
compass.setScaleDraw(scaleDraw)
compass.setNeedle(
Qwt.QwtCompassMagnetNeedle(
Qwt.QwtCompassMagnetNeedle.TriangleStyle, Qt.white,
Qt.red))
compass.setValue(220.0)
elif pos == 5:
#A compass with a yellow on black ray
palette0.setColor(QPalette.WindowText, Qt.black)
compass.setNeedle(
Qwt.QwtDialSimpleNeedle(Qwt.QwtDialSimpleNeedle.Ray, False,
Qt.yellow))
compass.setValue(315.0)
newPalette = compass.palette()
for c in range(QPalette.NColorRoles):
colorRole = QPalette.ColorRole(c)
if (palette0.color(colorRole).isValid()):
newPalette.setColor(colorRole, palette0.color(colorRole))
for i in range(QPalette.NColorGroups):
colorGroup = QPalette.ColorGroup(i)
light = newPalette.color(colorGroup, QPalette.Base) #.light( 170 )
dark = newPalette.color(colorGroup, QPalette.Base) #.dark( 170 )
#mid = compass.frameShadow() == QwtDial.Raised
# ? newPalette.color( colorGroup, QPalette.Base ).dark( 110 )
# : newPalette.color( colorGroup, QPalette.Base ).light( 110 )
mid = newPalette.color(colorGroup, QPalette.Base) #.dark( 110 )
newPalette.setColor(colorGroup, QPalette.Dark, dark)
newPalette.setColor(colorGroup, QPalette.Mid, mid)
newPalette.setColor(colorGroup, QPalette.Light, light)
compass.setPalette(newPalette)
return compass
