gr-qtgui: moving Python files to new structure; get rid of src directory.

1 files changed, 299 insertions, 0 deletions

diff --git a/gr-qtgui/python/usrp_display.py b/gr-qtgui/python/usrp_display.py
new file mode 100755
index 000000000..432e74d9a
--- /dev/null
+++ b/gr-qtgui/python/usrp_display.py
@@ -0,0 +1,299 @@
+#!/usr/bin/env python
+#
+# Copyright 2009 Free Software Foundation, Inc.
+# 
+# This file is part of GNU Radio
+# 
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+# 
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+# 
+
+from gnuradio import gr
+from gnuradio import usrp
+from gnuradio import eng_notation
+from gnuradio.eng_option import eng_option
+from gnuradio.qtgui import qtgui
+from optparse import OptionParser
+import sys
+
+try:
+    from gnuradio.qtgui import qtgui
+    from PyQt4 import QtGui, QtCore
+    import sip
+except ImportError:
+    print "Please install gr-qtgui."
+    sys.exit(1)
+
+try:
+    from usrp_display_qtgui import Ui_MainWindow
+except ImportError:
+    print "Error: could not find usrp_display_qtgui.py:"
+    print "\t\"pyuic4 usrp_display_qtgui.ui -o usrp_display_qtgui.py\""
+    sys.exit(1)
+
+
+
+# ////////////////////////////////////////////////////////////////////
+#        Define the QT Interface and Control Dialog
+# ////////////////////////////////////////////////////////////////////
+
+
+class main_window(QtGui.QMainWindow):
+    def __init__(self, snk, fg, parent=None):
+
+        QtGui.QWidget.__init__(self, parent)
+        self.gui = Ui_MainWindow()
+        self.gui.setupUi(self)
+
+        self.fg = fg
+
+        # Add the qtsnk widgets to the layout box
+        self.gui.sinkLayout.addWidget(snk)
+
+        # Connect up some signals
+        self.connect(self.gui.pauseButton, QtCore.SIGNAL("clicked()"),
+                     self.pauseFg)
+        self.connect(self.gui.frequencyEdit, QtCore.SIGNAL("editingFinished()"),
+                     self.frequencyEditText)
+        self.connect(self.gui.gainEdit, QtCore.SIGNAL("editingFinished()"),
+                     self.gainEditText)
+        self.connect(self.gui.bandwidthEdit, QtCore.SIGNAL("editingFinished()"),
+                     self.bandwidthEditText)
+        self.connect(self.gui.amplifierEdit, QtCore.SIGNAL("editingFinished()"),
+                     self.amplifierEditText)
+
+        self.connect(self.gui.actionSaveData, QtCore.SIGNAL("activated()"),
+                     self.saveData)
+        self.gui.actionSaveData.setShortcut(QtGui.QKeySequence.Save)
+
+    def pauseFg(self):
+        if(self.gui.pauseButton.text() == "Pause"):
+            self.fg.stop()
+            self.fg.wait()
+            self.gui.pauseButton.setText("Unpause")
+        else:
+            self.fg.start()
+            self.gui.pauseButton.setText("Pause")
+      
+
+    # Functions to set the values in the GUI
+    def set_frequency(self, freq):
+        self.freq = freq
+        sfreq = eng_notation.num_to_str(self.freq)
+        self.gui.frequencyEdit.setText(QtCore.QString("%1").arg(sfreq))
+        
+    def set_gain(self, gain):
+        self.gain = gain
+        self.gui.gainEdit.setText(QtCore.QString("%1").arg(self.gain))
+
+    def set_bandwidth(self, bw):
+        self.bw = bw
+        sbw = eng_notation.num_to_str(self.bw)
+        self.gui.bandwidthEdit.setText(QtCore.QString("%1").arg(sbw))
+
+    def set_amplifier(self, amp):
+        self.amp = amp
+        self.gui.amplifierEdit.setText(QtCore.QString("%1").arg(self.amp))
+
+
+    # Functions called when signals are triggered in the GUI
+    def frequencyEditText(self):
+        try:
+            freq = eng_notation.str_to_num(self.gui.frequencyEdit.text().toAscii()) 
+            self.fg.set_frequency(freq)
+            self.freq = freq
+        except RuntimeError:
+            pass
+
+    def gainEditText(self):
+        try:
+            gain = float(self.gui.gainEdit.text())
+            self.fg.set_gain(gain)
+            self.gain = gain
+        except ValueError:
+            pass
+                
+    def bandwidthEditText(self):
+        try:
+            bw = eng_notation.str_to_num(self.gui.bandwidthEdit.text().toAscii())
+            self.fg.set_bandwidth(bw)
+            self.bw = bw
+        except ValueError:
+            pass
+        
+    def amplifierEditText(self):
+        try:
+            amp = float(self.gui.amplifierEdit.text())
+            self.fg.set_amplifier_gain(amp)
+            self.amp = amp
+        except ValueError:
+            pass
+
+    def saveData(self):
+        fileName = QtGui.QFileDialog.getSaveFileName(self, "Save data to file", ".");
+        if(len(fileName)):
+            self.fg.save_to_file(str(fileName))
+
+        
+def pick_subdevice(u):
+    """
+    The user didn't specify a subdevice on the command line.
+    If there's a daughterboard on A, select A.
+    If there's a daughterboard on B, select B.
+    Otherwise, select A.
+    """
+    if u.db(0, 0).dbid() >= 0:       # dbid is < 0 if there's no d'board or a problem
+        return (0, 0)
+    if u.db(0, 0).dbid() >= 0:
+        return (1, 0)
+    return (0, 0)
+
+class my_top_block(gr.top_block):
+    def __init__(self):
+        gr.top_block.__init__(self)
+
+        parser = OptionParser(option_class=eng_option)
+        parser.add_option("-w", "--which", type="int", default=0,
+                          help="select which USRP (0, 1, ...) default is %default",
+			  metavar="NUM")
+        parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
+                          help="select USRP Rx side A or B (default=first one with a daughterboard)")
+        parser.add_option("-A", "--antenna", default=None,
+                          help="select Rx Antenna (only on RFX-series boards)")
+        parser.add_option("-W", "--bw", type="float", default=1e6,
+                          help="set bandwidth of receiver [default=%default]")
+        parser.add_option("-f", "--freq", type="eng_float", default=None,
+                          help="set frequency to FREQ", metavar="FREQ")
+        parser.add_option("-g", "--gain", type="eng_float", default=None,
+                          help="set gain in dB [default is midpoint]")
+        parser.add_option("-8", "--width-8", action="store_true", default=False,
+                          help="Enable 8-bit samples across USB")
+        parser.add_option( "--no-hb", action="store_true", default=False,
+                          help="don't use halfband filter in usrp")
+        parser.add_option("-S", "--oscilloscope", action="store_true", default=False,
+                          help="Enable oscilloscope display")
+	parser.add_option("", "--avg-alpha", type="eng_float", default=1e-1,
+			  help="Set fftsink averaging factor, [default=%default]")
+	parser.add_option("", "--ref-scale", type="eng_float", default=13490.0,
+			  help="Set dBFS=0dB input value, [default=%default]")
+        parser.add_option("", "--fft-size", type="int", default=2048,
+                          help="Set FFT frame size, [default=%default]");
+
+        (options, args) = parser.parse_args()
+        if len(args) != 0:
+            parser.print_help()
+            sys.exit(1)
+	self.options = options
+        self.show_debug_info = True
+
+        # Call this before creating the Qt sink
+        self.qapp = QtGui.QApplication(sys.argv)
+
+        self._fftsize = options.fft_size
+
+        self.u = usrp.source_c(which=options.which)
+        self._adc_rate = self.u.converter_rate()
+        self.set_bandwidth(options.bw)
+
+        if options.rx_subdev_spec is None:
+            options.rx_subdev_spec = pick_subdevice(self.u)
+        self._rx_subdev_spec = options.rx_subdev_spec
+        self.u.set_mux(usrp.determine_rx_mux_value(self.u, self._rx_subdev_spec))
+        self.subdev = usrp.selected_subdev(self.u, self._rx_subdev_spec)
+
+        self._gain_range = self.subdev.gain_range()
+        if options.gain is None:
+            # if no gain was specified, use the mid-point in dB
+            g = self._gain_range
+            options.gain = float(g[0]+g[1])/2
+        self.set_gain(options.gain)
+
+        if options.freq is None:
+            # if no frequency was specified, use the mid-point of the subdev
+            f = self.subdev.freq_range()
+            options.freq = float(f[0]+f[1])/2
+        self.set_frequency(options.freq)
+
+        self.snk = qtgui.sink_c(self._fftsize, gr.firdes.WIN_BLACKMAN_hARRIS,
+                                self._freq, self._bandwidth,
+                                "USRP Display",
+                                True, True, False, True, False)
+
+        # Set up internal amplifier
+        self.amp = gr.multiply_const_cc(0.0)
+        self.set_amplifier_gain(0.001)
+
+        # Connect the flow graph
+        self.connect(self.u, self.amp, self.snk)
+
+
+        # Get the reference pointer to the SpectrumDisplayForm QWidget
+        # Wrap the pointer as a PyQt SIP object
+        #     This can now be manipulated as a PyQt4.QtGui.QWidget
+        self.pysink = sip.wrapinstance(self.snk.pyqwidget(), QtGui.QWidget)
+
+        self.main_win = main_window(self.pysink, self)
+
+        self.main_win.set_frequency(self._freq)
+        self.main_win.set_gain(self._gain)
+        self.main_win.set_bandwidth(self._bandwidth)
+        self.main_win.set_amplifier(self._amp_value)
+
+        self.main_win.show()
+
+    def save_to_file(self, name):
+        # Pause the flow graph
+        self.stop()
+        self.wait()
+
+        # Add file sink to save data
+        self.file_sink = gr.file_sink(gr.sizeof_gr_complex, name)
+        self.connect(self.amp, self.file_sink)
+
+        # Restart flow graph
+        self.start()
+
+    def set_gain(self, gain):
+        self._gain = gain
+        self.subdev.set_gain(self._gain)
+
+    def set_frequency(self, freq):
+        self._freq = freq
+        self.u.tune(0, self.subdev, self._freq)
+
+        try:
+            self.snk.set_frequency_range(self._freq, self._bandwidth)
+        except:
+            pass
+
+    def set_bandwidth(self, bw):
+        self._bandwidth = bw
+        self._decim = int(self._adc_rate / self._bandwidth)
+        self.u.set_decim_rate(self._decim)
+
+        try:
+            self.snk.set_frequency_range(self._freq, self._bandwidth)
+        except:
+            pass
+
+    def set_amplifier_gain(self, amp):
+            self._amp_value = amp
+            self.amp.set_k(self._amp_value)
+
+       
+if __name__ == "__main__":
+    tb = my_top_block();
+    tb.start()
+    tb.qapp.exec_()