def __init__(self, label="", min_val=-90, max_val=90, step=10, arc_bias=0, *args):
gr.sync_block.__init__(self,name="QT Compass",in_sig=[numpy.float32],out_sig=[])
Qwt.QwtPlot.__init__(self, *args)
# Set parameters
self.update_period = 0.1
self.last = time.time()
self.next_angle = 0
### QT STUFF
# Setup overall layouts
self.this_layout = Qt.QVBoxLayout()
self.compass_layout = Qt.QGridLayout()
# Setup Dial
self.dial = Qwt.QwtDial(self)
self.dial.setOrigin(180+arc_bias) # Orient dial so 0 is at 9 o'clock
self.dial.setScaleArc(min_val,max_val)
self.dial.setRange(min_val, max_val, step)
self.dial.setScale(min_val ,max_val, step)
self.dial.setScaleTicks(1,20,30)
# Add needle
self.dial.setNeedle(Qwt.QwtDialSimpleNeedle(
Qwt.QwtDialSimpleNeedle.Arrow,
True,
QtGui.QColor(QtCore.Qt.red),
QtGui.QColor(QtCore.Qt.gray).light(130)))
self.dial.setValue(0)
# Set sizing
self.dial.setMinimumSize(250,250)
self.dial.setSizePolicy(Qt.QSizePolicy.Expanding, Qt.QSizePolicy.Expanding)
# Add to overall layout
self.compass_layout.addWidget(self.dial,0,0)
# Add label
self.label = Qt.QLabel(label)
font = QtGui.QFont()
font.setPointSize(14)
font.setBold(True)
self.label.setFont(font)
self.label.setAlignment(QtCore.Qt.AlignCenter)
self.this_layout.addWidget(self.label)
self.this_layout.addLayout(self.compass_layout)
# Setup LCD
lcd_layout = Qt.QGridLayout()
self.lcd = QtGui.QLCDNumber(self)
sizePolicy = Qt.QSizePolicy(Qt.QSizePolicy.Preferred, Qt.QSizePolicy.Preferred)
sizePolicy.setHeightForWidth(True)
self.lcd.setSizePolicy(sizePolicy)
self.lcd.setLineWidth(0)
# Set sizing
self.lcd.setMinimumHeight(self.dial.minimumHeight()/2)
self.lcd.setMinimumWidth(self.dial.minimumWidth()/2)
self.lcd.raise_() # Bring to front
self.lcd.setDigitCount(3) # Max digits displayed
self.lcd.setSmallDecimalPoint(True)
self.lcd.display(123.4)
self.compass_layout.addLayout(lcd_layout,0,0)
lcd_layout.addWidget(self.lcd,1,1,1,1)
# Add spacers to center LCD
spacerTop = QtGui.QSpacerItem(1,300,Qt.QSizePolicy.Maximum,Qt.QSizePolicy.Expanding)
spacerSides = QtGui.QSpacerItem(220,1,Qt.QSizePolicy.Maximum,Qt.QSizePolicy.Expanding)
spacerBottom = QtGui.QSpacerItem(1,150,Qt.QSizePolicy.Maximum,Qt.QSizePolicy.Expanding)
# Top Spacers
lcd_layout.addItem(spacerTop,0,1,1,1)
# Side Spacers
lcd_layout.addItem(spacerSides,1,0,1,1)
lcd_layout.addItem(spacerSides,1,2,1,1)
# Bottom Spacers
lcd_layout.addItem(spacerBottom,2,1,1,1)
self.label.raise_()
# connect the plot callback signal
QtCore.QObject.connect(self,
QtCore.SIGNAL("updatePlot(int)"),
self.do_plot)
def __init__(self,
label="",
min_val=-90,
max_val=90,
step=10,
arc_bias=0,
needle_N=1,
*args):
gr.sync_block.__init__(self,
name="QT Compass",
in_sig=[numpy.float32] * needle_N,
out_sig=[])
Qwt.QwtPlot.__init__(self, *args)
# Set parameters
self.update_period = 0.1
self.last = time.time()
self.next_angles = []
### QT STUFF
# Setup overall layouts
self.this_layout = Qt.QVBoxLayout()
self.compass_layout = Qt.QGridLayout()
# Setup Dials
self.dial_list = []
for i in range(needle_N):
dial = Qwt.QwtDial(self)
dial_palette = dial.palette()
transparent_color = QtGui.QBrush(QtGui.QColor(255, 255, 255, 0))
dial_palette.setBrush(QtGui.QPalette.Active,
QtGui.QPalette.WindowText, transparent_color)
dial_palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base,
transparent_color)
dial_palette.setBrush(QtGui.QPalette.Inactive,
QtGui.QPalette.WindowText, transparent_color)
dial_palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base,
transparent_color)
dial_palette.setBrush(QtGui.QPalette.Disabled,
QtGui.QPalette.WindowText, transparent_color)
dial_palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base,
transparent_color)
dial.setPalette(dial_palette)
dial.setOrigin(180 + arc_bias) # Orient dial so 0 is at 9 o'clock
dial.setScaleArc(min_val, max_val)
dial.setRange(min_val, max_val, step)
dial.setScale(min_val, max_val, step)
dial.setScaleTicks(1, 20, 30)
# Add needle
color_index = int(str(i)[len(str(i)) -
1:len(str(i)):]) # get last digit of i
if color_index == 0:
needleColor = QtGui.QColor(255, 0, 0) # red
elif color_index == 1:
needleColor = QtGui.QColor(255, 125, 0) # orange
elif color_index == 2:
needleColor = QtGui.QColor(255, 255, 0) # yellow
elif color_index == 3:
needleColor = QtGui.QColor(0, 255, 0) # green
elif color_index == 4:
needleColor = QtGui.QColor(0, 255, 255) # light blue
elif color_index == 5:
needleColor = QtGui.QColor(0, 0, 255) # blue
elif color_index == 6:
needleColor = QtGui.QColor(255, 0, 255) # light purple
elif color_index == 7:
needleColor = QtGui.QColor(150, 0, 255) # purple
elif color_index == 8:
needleColor = QtGui.QColor(150, 100, 0) # brown
else:
needleColor = QtGui.QColor(0, 0, 0) # black
dial.setNeedle(
Qwt.QwtDialSimpleNeedle(
Qwt.QwtDialSimpleNeedle.Arrow, True, needleColor,
QtGui.QColor(QtCore.Qt.gray).light(130)))
dial.setValue(0)
# Set sizing
dial.setMinimumSize(250, 250)
dial.setSizePolicy(Qt.QSizePolicy.Expanding,
Qt.QSizePolicy.Expanding)
self.dial_list.append(dial)
self.next_angles.append(0)
# Add to overall layout
for i in self.dial_list:
self.compass_layout.addWidget(i, 0, 0)
# Add label
self.label = Qt.QLabel(label)
font = QtGui.QFont()
font.setPointSize(14)
font.setBold(True)
self.label.setFont(font)
self.label.setAlignment(QtCore.Qt.AlignCenter)
self.this_layout.addWidget(self.label)
self.this_layout.addLayout(self.compass_layout)
self.label.raise_()
# connect the plot callback signal
QtCore.QObject.connect(self, QtCore.SIGNAL("updatePlot(int)"),
self.do_plot)
