File: plot_time_form.py

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#!/usr/bin/env python
#
# Copyright 2013,2018 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.
#

import sys
from gnuradio import filter

try:
    from PyQt5 import QtWidgets, Qt
    import sip
except ImportError:
    sys.stderr.write("Error: Program requires PyQt5.\n")
    sys.exit(1)

try:
    from gnuradio.qtgui.plot_from import plot_form
except ImportError:
    from plot_form import plot_form

class plot_time_form(plot_form):
    def __init__(self, top_block, title='', scale=1):
        plot_form.__init__(self, top_block, title, scale)

        self.right_col_layout = QtWidgets.QVBoxLayout()
        self.right_col_form = QtWidgets.QFormLayout()
        self.right_col_layout.addLayout(self.right_col_form)
        self.layout.addLayout(self.right_col_layout, 1,4,1,1)

        self.auto_scale = QtWidgets.QCheckBox("Auto Scale", self)
        if(self.top_block._auto_scale):
            self.auto_scale.setChecked(self.top_block._auto_scale)
        self.auto_scale.stateChanged.connect(self.set_auto_scale)
        self.right_col_layout.addWidget(self.auto_scale)

        self.stem = QtWidgets.QCheckBox("Stem", self)
        self.stem.stateChanged.connect(self.enable_stem)
        self.right_col_layout.addWidget(self.stem)

        self.add_line_control(self.right_col_layout)

    def set_auto_scale(self, state):
        if(state):
            self.top_block.auto_scale(True)
        else:
            self.top_block.auto_scale(False)

    def enable_stem(self, state):
        self.top_block.gui_snk.enable_stem_plot(state)
        if(state):
            index = self._qwtmarkers['Circle']+1
        else:
            index = self._qwtmarkers['None']+1
        for n in xrange(self.top_block._nsigs):
            self._marker_edit[n].setCurrentIndex(index)

    def update_samp_rate(self):
        sr = self.samp_rate_edit.text().toDouble()[0]
        self.top_block.gui_snk.set_samp_rate(sr)