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#!/usr/bin/env python
from gnuradio import gr, blks2
from gnuradio import qtgui
from PyQt4 import QtGui, QtCore
import sys, sip
class dialog_box(QtGui.QWidget):
def __init__(self, display, control):
QtGui.QWidget.__init__(self, None)
self.setWindowTitle('PyQt Test GUI')
self.boxlayout = QtGui.QBoxLayout(QtGui.QBoxLayout.LeftToRight, self)
self.boxlayout.addWidget(display, 1)
self.boxlayout.addWidget(control)
self.resize(800, 500)
class control_box(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.setWindowTitle('Control Panel')
self.setToolTip('Control the signals')
QtGui.QToolTip.setFont(QtGui.QFont('OldEnglish', 10))
self.layout = QtGui.QFormLayout(self)
# Control the first signal
self.freq1Edit = QtGui.QLineEdit(self)
self.freq1Edit.setMinimumWidth(100)
self.layout.addRow("Signal 1 Frequency:", self.freq1Edit)
self.connect(self.freq1Edit, QtCore.SIGNAL("editingFinished()"),
self.freq1EditText)
self.amp1Edit = QtGui.QLineEdit(self)
self.amp1Edit.setMinimumWidth(100)
self.layout.addRow("Signal 1 Amplitude:", self.amp1Edit)
self.connect(self.amp1Edit, QtCore.SIGNAL("editingFinished()"),
self.amp1EditText)
# Control the second signal
self.freq2Edit = QtGui.QLineEdit(self)
self.freq2Edit.setMinimumWidth(100)
self.layout.addRow("Signal 2 Frequency:", self.freq2Edit)
self.connect(self.freq2Edit, QtCore.SIGNAL("editingFinished()"),
self.freq2EditText)
self.amp2Edit = QtGui.QLineEdit(self)
self.amp2Edit.setMinimumWidth(100)
self.layout.addRow("Signal 2 Amplitude:", self.amp2Edit)
self.connect(self.amp2Edit, QtCore.SIGNAL("editingFinished()"),
self.amp2EditText)
self.quit = QtGui.QPushButton('Close', self)
self.quit.setMinimumWidth(100)
self.layout.addWidget(self.quit)
self.connect(self.quit, QtCore.SIGNAL('clicked()'),
QtGui.qApp, QtCore.SLOT('quit()'))
def attach_signal1(self, signal):
self.signal1 = signal
self.freq1Edit.setText(QtCore.QString("%1").arg(self.signal1.frequency()))
self.amp1Edit.setText(QtCore.QString("%1").arg(self.signal1.amplitude()))
def attach_signal2(self, signal):
self.signal2 = signal
self.freq2Edit.setText(QtCore.QString("%1").arg(self.signal2.frequency()))
self.amp2Edit.setText(QtCore.QString("%1").arg(self.signal2.amplitude()))
def freq1EditText(self):
try:
newfreq = float(self.freq1Edit.text())
self.signal1.set_frequency(newfreq)
except ValueError:
print "Bad frequency value entered"
def amp1EditText(self):
try:
newamp = float(self.amp1Edit.text())
self.signal1.set_amplitude(newamp)
except ValueError:
print "Bad amplitude value entered"
def freq2EditText(self):
try:
newfreq = float(self.freq2Edit.text())
self.signal2.set_frequency(newfreq)
except ValueError:
print "Bad frequency value entered"
def amp2EditText(self):
try:
newamp = float(self.amp2Edit.text())
self.signal2.set_amplitude(newamp)
except ValueError:
print "Bad amplitude value entered"
class my_top_block(gr.top_block):
def __init__(self):
gr.top_block.__init__(self)
Rs = 8000
f1 = 1000
f2 = 2000
fftsize = 2048
self.qapp = QtGui.QApplication(sys.argv)
src1 = gr.sig_source_f(Rs, gr.GR_SIN_WAVE, f1, 0.1, 0)
src2 = gr.sig_source_f(Rs, gr.GR_SIN_WAVE, f2, 0.1, 0)
src = gr.add_ff()
thr = gr.throttle(gr.sizeof_float, 100*fftsize)
self.snk1 = qtgui.sink_f(fftsize, gr.firdes.WIN_BLACKMAN_hARRIS,
0, Rs,
"Float Signal Example",
True, True, False, True, False)
self.connect(src1, (src,0))
self.connect(src2, (src,1))
self.connect(src, thr, self.snk1)
self.ctrl_win = control_box()
self.ctrl_win.attach_signal1(src1)
self.ctrl_win.attach_signal2(src2)
# Get the reference pointer to the SpectrumDisplayForm QWidget
pyQt = self.snk1.pyqwidget()
# Wrap the pointer as a PyQt SIP object
# This can now be manipulated as a PyQt4.QtGui.QWidget
self.pyWin = sip.wrapinstance(pyQt, QtGui.QWidget)
self.main_box = dialog_box(self.pyWin, self.ctrl_win)
self.main_box.show()
if __name__ == "__main__":
tb = my_top_block();
tb.start()
sys.exit(tb.qapp.exec_())
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