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#!/usr/bin/python3
# python radio.py <qtversion (4 or 5)>
# Tested for python3 Qt5. Crashes if mouse is over plot canvas
import sys
from PyQt5 import Qwt
from PyQt5.QtCore import Qt, QTimer, QRectF, QPointF, qRound # pyqtSignal, Qt, QSize, QBasicTimer
from PyQt5.QtGui import QColor, QPalette, QPainterPath, QPen #, QPixmap, QFont, QIcon, QLinearGradient
from PyQt5.QtWidgets import (QWidget, QApplication, QTabWidget, QGridLayout )
#from PyQt5.QtPrintSupport import QPrintDialog, QPrinter
M_PI=3.141
class CompassGrid( QWidget ): #QFrame( parent )
def __init__(self, parent=None):
QWidget.__init__(self, parent)
p = QPalette()
p.setColor( self.backgroundRole(), Qt.gray )
self.setPalette( p )
self.setAutoFillBackground( True )
layout = QGridLayout( self )
layout.setSpacing( 5 )
#layout.setMargin( 0 )
for i in range(6):
compass = self.createCompass( i )
layout.addWidget( compass, i // 3, i % 3 )
#for i in range(layout.columnCount()):
# layout.setColumnStretch( i, 1 )
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
class SpeedoMeter( Qwt.QwtDial ): #QwtDial( parent ),
def __init__(self,parent = None):
Qwt.QwtDial.__init__(self,parent)
self.d_label = "km/h"
scaleDraw = Qwt.QwtRoundScaleDraw()
scaleDraw.setSpacing( 8 )
scaleDraw.enableComponent( Qwt.QwtAbstractScaleDraw.Backbone, False )
scaleDraw.setTickLength( Qwt.QwtScaleDiv.MinorTick, 0 )
scaleDraw.setTickLength( Qwt.QwtScaleDiv.MediumTick, 4 )
scaleDraw.setTickLength( Qwt.QwtScaleDiv.MajorTick, 8 )
self. setScaleDraw( scaleDraw )
self.setWrapping( False )
self.setReadOnly( True )
self.setOrigin( 135.0 )
self.setScaleArc( 0.0, 270.0 )
needle = Qwt.QwtDialSimpleNeedle(
Qwt.QwtDialSimpleNeedle.Arrow, True, Qt.red,
QColor( Qt.gray ))#.light( 130 ) )
self.setNeedle( needle )
def setLabel( self, label ):
self.d_label = label
self.update()
def label(self):
return self.d_label
def drawScaleContents( self, painter, center, radius ):
rect = QRectF( 0.0, 0.0, 2.0 * radius, 2.0 * radius - 10.0 )
rect.moveCenter( center )
color = self.palette().color( QPalette.Text )
painter.setPen( color )
flags = Qt.AlignBottom | Qt.AlignHCenter
painter.drawText( rect, flags, self.d_label )
class AttitudeIndicatorNeedle(Qwt.QwtDialNeedle):
def __init__(self, color=None):
Qwt.QwtDialNeedle.__init__(self)
palette = QPalette()
palette.setColor( QPalette.Text, color )
#self.setPalette( palette )
def rawNeedle( self, painter, length, colorGroup ):
triangleSize = length * 0.1
pos = length - 2.0
path = QPainterPath()
path.moveTo( pos, 0 )
path.lineTo( pos - 2 * triangleSize, triangleSize )
path.lineTo( pos - 2 * triangleSize, -triangleSize )
path.closeSubpath()
painter.setBrush( self.palette().brush( colorGroup, QPalette.Text ) )
painter.drawPath( path )
l = length - 2
painter.setPen( QPen( self.palette().color( colorGroup, QPalette.Text ), 3 ) )
painter.drawLine( QPointF( 0.0, -l ), QPointF( 0.0, l ) )
class AttitudeIndicator(Qwt.QwtDial):
def __init__(self, parent = None):
Qwt.QwtDial.__init__( self, parent )
self.d_gradient = 0.0
scaleDraw = Qwt.QwtRoundScaleDraw()
scaleDraw.enableComponent( Qwt.QwtAbstractScaleDraw.Backbone, False )
scaleDraw.enableComponent( Qwt.QwtAbstractScaleDraw.Labels, False )
self.setScaleDraw( scaleDraw )
#self.setMode( Qwt.RotateScale )
self.setWrapping( True )
self.setOrigin( 270.0 )
self.setScaleMaxMinor( 0 )
self.setScaleStepSize( 30.0 )
self.setScale( 0.0, 360.0 )
color = self.palette().color( QPalette.Text )
self.setNeedle( AttitudeIndicatorNeedle( color ) )
def setGradient( self, gradient ):
if ( gradient < -1.0 ):
gradient = -1.0
elif ( gradient > 1.0 ):
gradient = 1.0
if ( self.d_gradient != gradient ):
self.d_gradient = gradient
self.update()
def drawScale( self, painter, center, radius ):
offset = 4.0
p0 = self.qwtPolar2Pos( center, offset, 1.5 * M_PI )
w = self.innerRect().width()
path = QPainterPath()
path.moveTo( Qwt.qwtPolar2Pos( p0, w, 0.0 ) )
path.lineTo( Qwt.qwtPolar2Pos( path.currentPosition(), 2 * w, M_PI ) )
path.lineTo( Qwt.qwtPolar2Pos( path.currentPosition(), w, 0.5 * M_PI ) )
path.lineTo( Qwt.qwtPolar2Pos( path.currentPosition(), w, 0.0 ) )
painter.save()
painter.setClipPath( path ) # swallow 180 - 360 degrees
Qwt.QwtDial.drawScale( painter, center, radius )
painter.restore()
def drawScaleContents( self, painter, double ):
dir = 360 - qRound( self.origin() - self.value() ) # counter clockwise
arc = 90 + qRound( self.gradient() * 90 )
skyColor = QColor( 38, 151, 221 )
painter.save()
painter.setBrush( skyColor )
painter.drawChord( self.scaleInnerRect(), ( dir - arc ) * 16, 2 * arc * 16 )
painter.restore()
def keyPressEvent( self, event ):
k = event.key()
if k == Qt.Key_Plus:
self.setGradient( self.gradient() + 0.05 )
elif k == Qt.Key_Minus:
self.setGradient( self.gradient() - 0.05 )
else:
Qwt.QwtDial.keyPressEvent( event )
def angle(self):
return self.value()
def gradient(self):
return self.d_gradient
def setAngle( self, angle ):
self.setValue( angle )
class CockpitGrid( QWidget ):
def __init__(self, parent = None):
QWidget.__init__(self, parent)
self.setAutoFillBackground( True )
#self.setPalette( self.colorTheme( QColor( Qt.darkGray )))#.dark( 150 ) ) )
layout = QGridLayout( self )
layout.setSpacing( 5 )
#layout.setMargin( 0 )
for i in range(2): # FIXME. Should be 3 but program crashes for the third one.
dial = self.createDial( i )
layout.addWidget( dial, 0, i )
for i in range(layout.columnCount()):
layout.setColumnStretch( i, 1 )
def createDial( self, pos ):
dial = None
if pos == 0:
self.d_clock = Qwt.QwtAnalogClock( )
# disable minor ticks
#d_clock.scaleDraw().setTickLength( QwtScaleDiv.MinorTick, 0 )
knobColor = QColor( Qt.gray ) # .light( 130 )
for i in range(Qwt.QwtAnalogClock.NHands):
handColor = QColor( Qt.gray ) #.light( 150 )
width = 8
if i == Qwt.QwtAnalogClock.SecondHand:
handColor = Qt.gray
width = 5
hand = Qwt.QwtDialSimpleNeedle( Qwt.QwtDialSimpleNeedle.Arrow, True, handColor, knobColor )
hand.setWidth( width )
self.d_clock.setHand( Qwt.QwtAnalogClock.Hand( i ), hand )
timer = QTimer( self.d_clock )
timer.timeout.connect(self.d_clock.setCurrentTime)
timer.start( 1000 )
dial = self.d_clock
elif pos == 1:
self.d_speedo = SpeedoMeter( self )
self.d_speedo.setScaleStepSize( 20.0 )
self.d_speedo.setScale( 0.0, 240.0 )
self.d_speedo.scaleDraw().setPenWidth( 2 )
timer = QTimer( self.d_speedo )
timer.timeout.connect(self.changeSpeed )
timer.start( 50 )
dial = self.d_speedo
elif pos == 2:
self.d_ai = AttitudeIndicator( self )
self.d_ai.scaleDraw().setPenWidth( 3 )
gradientTimer = QTimer( self.d_ai )
gradientTimer.timeout.connect(self.changeGradient )
gradientTimer.start( 100 )
angleTimer = QTimer( self.d_ai )
angleTimer.timeout.connect( self.changeAngle )
angleTimer.start( 100 )
dial = self.d_ai
if ( dial ):
dial.setReadOnly( True )
dial.setLineWidth( 4 )
dial.setFrameShadow(Qwt.QwtDial.Sunken )
return dial
def colorTheme( self, base ):
palette = QPalette
palette.setColor( QPalette.Base, base )
palette.setColor( QPalette.Window, base.dark( 150 ) )
palette.setColor( QPalette.Mid, base.dark( 110 ) )
palette.setColor( QPalette.Light, base.light( 170 ) )
palette.setColor( QPalette.Dark, base.dark( 170 ) )
palette.setColor( QPalette.Text, base.dark( 200 ).light( 800 ) )
palette.setColor( QPalette.WindowText, base.dark( 200 ) )
return palette
def changeSpeed(self):
offset = 0.8
speed = self.d_speedo.value()
if ( ( speed < 7.0 and offset < 0.0 ) or ( speed > 203.0 and offset > 0.0 ) ):
offset = -offset
counter = 0
"""switch( counter++ % 12 )
{
case 0:
case 2:
case 7:
case 8:
break
default:
}"""
self.d_speedo.setValue( speed + offset )
def changeAngle(self):
offset = 0.05
angle = self.d_ai.angle()
if ( angle > 180.0 ):
angle -= 360.0
if ( ( angle < -5.0 and offset < 0.0 ) or ( angle > 5.0 and offset > 0.0 ) ):
offset = -offset
self.d_ai.setAngle( angle + offset )
def changeGradient(self):
offset = 0.005
gradient = self.d_ai.gradient()
if ( ( gradient < -0.05 and offset < 0.0 ) or ( gradient > 0.05 and offset > 0.0 ) ):
offset = -offset
self.d_ai.setGradient( gradient + offset )
a = QApplication(sys.argv)
tabWidget = QTabWidget()
tabWidget.addTab(CompassGrid(),"Compass")
tabWidget.addTab(CockpitGrid(),"Cockpit")
tabWidget.show()
sys.exit(a.exec_())
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