diff options
Diffstat (limited to 'examples/charts/memoryusage.py')
| -rw-r--r-- | examples/charts/memoryusage.py | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/examples/charts/memoryusage.py b/examples/charts/memoryusage.py deleted file mode 100644 index b6f665b3d..000000000 --- a/examples/charts/memoryusage.py +++ /dev/null @@ -1,125 +0,0 @@ - -############################################################################# -## -## Copyright (C) 2017 The Qt Company Ltd. -## Contact: http://www.qt.io/licensing/ -## -## This file is part of the Qt for Python examples of the Qt Toolkit. -## -## $QT_BEGIN_LICENSE:BSD$ -## You may use this file under the terms of the BSD license as follows: -## -## "Redistribution and use in source and binary forms, with or without -## modification, are permitted provided that the following conditions are -## met: -## * Redistributions of source code must retain the above copyright -## notice, this list of conditions and the following disclaimer. -## * Redistributions in binary form must reproduce the above copyright -## notice, this list of conditions and the following disclaimer in -## the documentation and/or other materials provided with the -## distribution. -## * Neither the name of The Qt Company Ltd nor the names of its -## contributors may be used to endorse or promote products derived -## from this software without specific prior written permission. -## -## -## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -## -## $QT_END_LICENSE$ -## -############################################################################# - -"""PySide2 Charts example: Simple memory usage viewer""" - -import os -import sys -from PySide2.QtCore import QRect, QSize, QProcess -from PySide2.QtWidgets import QApplication, QMainWindow -from PySide2.QtCharts import QtCharts - -def runProcess(command, arguments): - process = QProcess() - process.start(command, arguments) - process.waitForFinished() - std_output = process.readAllStandardOutput().data().decode('utf-8') - return std_output.split('\n') - -def getMemoryUsage(): - result = [] - if sys.platform == 'win32': - # Windows: Obtain memory usage in KB from 'tasklist' - for line in runProcess('tasklist', [])[3:]: - if len(line) >= 74: - command = line[0:23].strip() - if command.endswith('.exe'): - command = command[0:len(command) - 4] - memoryUsage = float(line[64:74].strip().replace(',', '').replace('.', '')) - legend = '' - if memoryUsage > 10240: - legend = '{} {}M'.format(command, round(memoryUsage / 1024)) - else: - legend = '{} {}K'.format(command, round(memoryUsage)) - result.append([legend, memoryUsage]) - else: - # Unix: Obtain memory usage percentage from 'ps' - psOptions = ['-e', 'v'] - memoryColumn = 8 - commandColumn = 9 - if sys.platform == 'darwin': - psOptions = ['-e', '-v'] - memoryColumn = 11 - commandColumn = 12 - for line in runProcess('ps', psOptions): - tokens = line.split(None) - if len(tokens) > commandColumn and "PID" not in tokens: # Percentage and command - command = tokens[commandColumn] - if not command.startswith('['): - command = os.path.basename(command) - memoryUsage = round(float(tokens[memoryColumn].replace(',', '.'))) - legend = '{} {}%'.format(command, memoryUsage) - result.append([legend, memoryUsage]) - - result.sort(key = lambda x: x[1], reverse=True) - return result - -class MainWindow(QMainWindow): - - def __init__(self): - super(MainWindow, self).__init__() - - self.setWindowTitle('Memory Usage') - - memoryUsage = getMemoryUsage() - if len(memoryUsage) > 5: - memoryUsage = memoryUsage[0:4] - - self.series = QtCharts.QPieSeries() - for item in memoryUsage: - self.series.append(item[0], item[1]); - - slice = self.series.slices()[0] - slice.setExploded(); - slice.setLabelVisible(); - self.chart = QtCharts.QChart() - self.chart.addSeries(self.series); - self.chartView = QtCharts.QChartView(self.chart) - self.setCentralWidget(self.chartView) - -if __name__ == '__main__': - app = QApplication(sys.argv) - mainWin = MainWindow() - availableGeometry = app.desktop().availableGeometry(mainWin) - size = availableGeometry.height() * 3 / 4 - mainWin.resize(size, size) - mainWin.show() - sys.exit(app.exec_()) |