/usr/lib/python2.7/dist-packages/gnuradio/qtgui/plot_form.py is in gnuradio 3.7.11-10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright 2012,2018 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.
#
try:
from PyQt5 import QtWidgets, Qt
import sip
except ImportError:
import sys
sys.stderr.write("Error: Program requires PyQt5.\n")
sys.exit(1)
import numpy
class plot_form(QtWidgets.QWidget):
def __init__(self, top_block, title='', scale=1):
QtWidgets.QWidget.__init__(self, None)
self._start = 0
self._end = 0
self._y_min = 0
self._y_max = 0
self._pos_scale = scale
self.top_block = top_block
self.top_block.gui_y_axis = self.gui_y_axis
self.setWindowTitle(title)
self.layout = QtWidgets.QGridLayout(self)
self.layout.addWidget(top_block.get_gui(), 1,2,1,2)
# Create a save action
self.save_act = QtWidgets.QAction("Save", self)
self.save_act.setShortcut(QtWidgets.QKeySequence.Save)
self.save_act.triggered.connect(self.save_figure)
# Create an exit action
self.exit_act = QtWidgets.QAction("Exit", self)
self.exit_act.setShortcut(QtWidgets.QKeySequence.Close)
self.exit_act.triggered.connect(self.close)
# Create a menu for the window
self.menu = QtWidgets.QToolBar("Menu", self)
self.menu.addAction(self.save_act)
self.menu.addAction(self.exit_act)
self.layout.addWidget(self.menu, 0,0,1,4)
self.left_col_form = QtWidgets.QFormLayout()
self.layout.addLayout(self.left_col_form, 1,0,1,1)
self.layout.setColumnStretch(0, 0)
self.layout.setColumnStretch(2, 1)
# Create Edit boxes for X-axis start/stop
self.size_val = QtWidgets.QIntValidator(0, top_block._max_nsamps, self)
self.start_edit = QtWidgets.QLineEdit(self)
self.start_edit.setMinimumWidth(100)
self.start_edit.setMaximumWidth(100)
self.start_edit.setText("{0}".format(top_block._start))
self.start_edit.setValidator(self.size_val)
self.left_col_form.addRow("Start:", self.start_edit)
self.start_edit.returnPressed.connect(self.update_xaxis_pos)
end = top_block._start + top_block._nsamps
self.end_edit = QtWidgets.QLineEdit(self)
self.end_edit.setMinimumWidth(100)
self.end_edit.setMaximumWidth(100)
self.end_edit.setText("{0}".format(end))
self.end_edit.setValidator(self.size_val)
self.left_col_form.addRow("End:", self.end_edit)
self.end_edit.returnPressed.connect(self.update_xaxis_pos)
# Create a slider to move the position in the file
self.posbar = QtWidgets.QSlider(Qt.Qt.Horizontal, self)
self.posbar.setMaximum(self.top_block._max_nsamps)
self.posbar.setPageStep(self.top_block._nsamps)
self.posbar.valueChanged.connect(self.update_xaxis_slider)
self.layout.addWidget(self.posbar, 2,2,1,1)
# Create Edit boxes for Y-axis min/max
self.y_max_edit = QtWidgets.QLineEdit(self)
self.y_max_edit.setMinimumWidth(100)
self.y_max_edit.setMaximumWidth(100)
self.left_col_form.addRow("Y Max:", self.y_max_edit)
self.y_max_edit.editingFinished.connect(self.update_yaxis_pos)
self.y_min_edit = QtWidgets.QLineEdit(self)
self.y_min_edit.setMinimumWidth(100)
self.y_min_edit.setMaximumWidth(100)
self.left_col_form.addRow("Y Min:", self.y_min_edit)
self.y_min_edit.editingFinished.connect(self.update_yaxis_pos)
self.grid_check = QtWidgets.QCheckBox("Grid", self)
self.grid_check.stateChanged.connect(self.set_grid_check)
self.left_col_form.addWidget(self.grid_check)
# Create a slider to move the plot's y-axis offset
_ymax = numpy.int32(min(numpy.iinfo(numpy.int32).max, self.top_block._y_max))
_ymin = numpy.int32(max(numpy.iinfo(numpy.int32).min, self.top_block._y_min))
_yrng = numpy.int32(min(numpy.iinfo(numpy.int32).max, self.top_block._y_range))
_yval = numpy.int32(min(numpy.iinfo(numpy.int32).max, self.top_block._y_value))
self.ybar = QtWidgets.QSlider(Qt.Qt.Vertical, self)
self.ybar.setMinimum(self._pos_scale*_ymin)
self.ybar.setMaximum(self._pos_scale*_ymax)
self.ybar.setSingleStep(self._pos_scale*(_yrng/10))
self.ybar.setPageStep(self._pos_scale*(_yrng/2))
self.ybar.setValue(self._pos_scale*_ymax)
self.ybar.valueChanged.connect(self.update_yaxis_slider)
self.layout.addWidget(self.ybar, 1,1,1,1)
self.gui_y_axis(top_block._y_value-top_block._y_range, top_block._y_value)
# Create an edit box for the Sample Rate
sr = top_block._samp_rate
self.samp_rate_edit = QtWidgets.QLineEdit(self)
self.samp_rate_edit.setMinimumWidth(100)
self.samp_rate_edit.setMaximumWidth(100)
self.samp_rate_edit.setText("{0}".format(sr))
self.left_col_form.addRow("Sample Rate:", self.samp_rate_edit)
self.samp_rate_edit.returnPressed.connect(self.update_samp_rate)
# Create an edit box for the center frequency
freq = top_block._center_freq
self.freq_edit = QtWidgets.QLineEdit(self)
self.freq_edit.setMinimumWidth(100)
self.freq_edit.setMaximumWidth(100)
self.freq_edit.setText("{0}".format(freq))
self.left_col_form.addRow("Frequency:", self.freq_edit)
self.freq_edit.returnPressed.connect(self.update_samp_rate)
self.resize(1000, 500)
def add_line_control(self, layout):
self._line_tabs = QtWidgets.QTabWidget()
self._line_pages = []
self._line_forms = []
self._label_edit = []
self._size_edit = []
self._color_edit = []
self._style_edit = []
self._marker_edit = []
self._alpha_edit = []
for n in xrange(self.top_block._nsigs):
self._line_pages.append(QtWidgets.QDialog())
self._line_forms.append(QtWidgets.QFormLayout(self._line_pages[-1]))
label = self.top_block.gui_snk.line_label(n)
self._label_edit.append(QtWidgets.QLineEdit(self))
self._label_edit[-1].setMinimumWidth(125)
self._label_edit[-1].setMaximumWidth(125)
self._label_edit[-1].setText("{0}".format(label))
self._line_forms[-1].addRow("Label:", self._label_edit[-1])
self._label_edit[-1].returnPressed.connect(self.update_line_label)
width_val = QtWidgets.QIntValidator(1, 20, self)
self._size_edit.append(QtWidgets.QLineEdit(self))
self._size_edit[-1].setValidator(width_val)
self._size_edit[-1].setMinimumWidth(100)
self._size_edit[-1].setMaximumWidth(100)
self._size_edit[-1].setText("{0}".format(1))
self._line_forms[-1].addRow("Width:", self._size_edit[-1])
self._size_edit[-1].returnPressed.connect(self.update_line_size)
color = self.top_block.gui_snk.line_color(n)
self._color_edit.append(QtWidgets.QLineEdit(self))
self._color_edit[-1].setMinimumWidth(100)
self._color_edit[-1].setMaximumWidth(100)
self._color_edit[-1].setText("{0}".format(color))
self._line_forms[-1].addRow("Color:", self._color_edit[-1])
self._color_edit[-1].returnPressed.connect(self.update_line_color)
self._qtstyles = {"None": Qt.Qt.NoPen,
"Solid": Qt.Qt.SolidLine,
"Dash": Qt.Qt.DashLine,
"Dot": Qt.Qt.DotLine,
"DashDot": Qt.Qt.DashDotLine,
"DashDotDot": Qt.Qt.DashDotDotLine}
self._style_edit.append(QtWidgets.QComboBox(self))
self._style_edit[-1].addItems(["None", "Solid", "Dash",
"Dot", "DashDot", "DashDotDot"])
self._style_edit[-1].setCurrentIndex(1)
self._line_forms[-1].addRow("Style:", self._style_edit[-1])
self._style_edit[-1].currentIndexChanged.connect(self.update_line_style)
# A bit dangerous, this. If QWT ever changes the lineup,
# we will have to adjust this, too. But we also can't
# really rely on PyQwt right now.
self._qwtmarkers = {"None": -1,
"Circle": 0,
"Rectangle": 1,
"Diamond": 2,
"Triangle": 3,
"Down Triangle": 4,
"Left Triangle": 6,
"Right Triangle": 7,
"Cross": 8,
"X-Cross": 9,
"Horiz. Line": 10,
"Vert. Line": 11,
"Star 1": 12,
"Star 2": 13,
"Hexagon": 14}
self._marker_edit.append(QtWidgets.QComboBox(self))
self._marker_edit[-1].addItems(["None", "Circle", "Rectangle", "Diamond",
"Triangle", "Down Triangle", "Left Triangle",
"Right Triangle", "Cross", "X-Cross",
"Horiz. Line", "Vert. Line", "Star 1",
"Star 2", "Hexagon"])
self._line_forms[-1].addRow("Marker:", self._marker_edit[-1])
self._marker_edit[-1].currentIndexChanged.connect(self.update_line_marker)
alpha_val = QtWidgets.QDoubleValidator(0, 1.0, 2, self)
alpha_val.setTop(1.0)
alpha = self.top_block.gui_snk.line_alpha(n)
self._alpha_edit.append(QtWidgets.QLineEdit(self))
self._alpha_edit[-1].setMinimumWidth(50)
self._alpha_edit[-1].setMaximumWidth(100)
self._alpha_edit[-1].setText("{0]".format(alpha))
self._alpha_edit[-1].setValidator(alpha_val)
self._line_forms[-1].addRow("Alpha:", self._alpha_edit[-1])
self._alpha_edit[-1].returnPressed.connect(self.update_line_alpha)
self._line_tabs.addTab(self._line_pages[-1], "{0}".format(label))
layout.addWidget(self._line_tabs)
def update_line_label(self):
index = self._line_tabs.currentIndex()
label = self._label_edit[index].text()
self._line_tabs.setTabText(index, label)
self.top_block.gui_snk.set_line_label(index, str(label))
def update_line_size(self):
index = self._line_tabs.currentIndex()
width = self._size_edit[index].text().toUInt()[0]
self.top_block.gui_snk.set_line_width(index, width)
self.update_line_alpha()
def update_line_color(self):
index = self._line_tabs.currentIndex()
color = str(self._color_edit[index].text())
self.top_block.gui_snk.set_line_color(index, color)
self.update_line_alpha()
def update_line_style(self, s_index):
index = self._line_tabs.currentIndex()
style_str = self._style_edit[index].itemText(s_index)
style = self._qtstyles[str(style_str)]
self.top_block.gui_snk.set_line_style(index, int(style))
def update_line_marker(self, m_index):
index = self._line_tabs.currentIndex()
marker_str = self._marker_edit[index].itemText(m_index)
marker = self._qwtmarkers[str(marker_str)]
self.top_block.gui_snk.set_line_marker(index, int(marker))
def update_line_alpha(self):
index = self._line_tabs.currentIndex()
alpha = self._alpha_edit[index].text().toDouble()[0]
self.top_block.gui_snk.set_line_alpha(index, alpha)
def update_xaxis_pos(self):
newstart = self.start_edit.text().toUInt()[0]
newend = self.end_edit.text().toUInt()[0]
if(newstart != self._start or newend != self._end):
if(newend < newstart):
QtWidgets.QMessageBox.information(
self, "Warning",
"End sample is less than start sample.",
QtWidgets.QMessageBox.Ok);
else:
newnsamps = newend - newstart
self.top_block.reset(newstart, newnsamps)
self._start = newstart
self._end = newend
self.posbar.setPageStep(self.top_block._nsamps)
self.posbar.setValue(self._start)
def update_xaxis_slider(self, value):
self._start = value
self._end = value + self.posbar.pageStep()
self.start_edit.setText("{0}".format(self._start))
self.end_edit.setText("{0}".format(self._end))
if(value != self.top_block._max_nsamps):
self.top_block.reset(self._start, self.posbar.pageStep())
def update_yaxis_pos(self):
if(not self.top_block._auto_scale):
newmin = self.y_min_edit.text().toDouble()[0]
newmax = self.y_max_edit.text().toDouble()[0]
if(newmin != self._y_min or newmax != self._y_max):
self._y_min = newmin
self._y_max = newmax
self.top_block._y_range = newmax - newmin
self.top_block.set_y_axis(self._y_min, self._y_max)
self.ybar.setValue(self._y_max*self._pos_scale)
else:
self.y_min_edit.setText("{0:.2f}".format(self._y_min))
self.y_max_edit.setText("{0:.2f}".format(self._y_max))
def update_yaxis_slider(self, value):
if(not self.top_block._auto_scale):
value = value/self._pos_scale
self.top_block._y_value = value
self._y_min = value - self.top_block._y_range
self._y_max = value
ret = self.top_block.set_y_axis(self._y_min, self._y_max)
if(ret):
self._y_min = ret[0]
self._y_max = ret[1]
self.gui_y_axis(self._y_min, self._y_max)
else:
self.ybar.setValue(self._y_max*self._pos_scale)
def update_samp_rate(self):
sr = self.samp_rate_edit.text().toDouble()[0]
fr = self.freq_edit.text().toDouble()[0]
self.top_block.gui_snk.set_frequency_range(fr, sr)
self.top_block._samp_rate = sr
self.top_block.reset(self.top_block._start,
self.top_block._nsamps)
def gui_y_axis(self, ymin, ymax):
self.y_min_edit.setText("{0:.2f}".format(ymin))
self.y_max_edit.setText("{0:.2f}".format(ymax))
self._y_min = ymin
self._y_max = ymax
self.ybar.setValue(self._pos_scale*ymax)
def set_grid_check(self, state):
if(state):
self.top_block.gui_snk.enable_grid(True)
else:
self.top_block.gui_snk.enable_grid(False)
def save_figure(self):
qpix = QtWidgets.QPixmap.grabWidget(self.top_block.pyWin)
types = "JPEG file (*.jpg);;" + \
"Portable Network Graphics file (*.png);;" + \
"Bitmap file (*.bmp);;" + \
"TIFF file (*.tiff)"
filebox = QtWidgets.QFileDialog(self, "Save Image", "./", types)
filebox.setViewMode(QtWidgets.QFileDialog.Detail)
if(filebox.exec_()):
filename = filebox.selectedFiles()[0]
filetype = filebox.selectedNameFilter()
else:
return
if(filetype.contains(".jpg")):
qpix.save(filename, "JPEG");
elif(filetype.contains(".png")):
qpix.save(filename, "PNG");
elif(filetype.contains(".bmp")):
qpix.save(filename, "BMP");
elif(filetype.contains(".tiff")):
qpix.save(filename, "TIFF");
else:
qpix.save(filename, "JPEG");
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