############################################################################# ## ## Copyright (C) 2018 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 port of the Chart Themes example from Qt v5.x""" import sys from PySide2.QtCore import qApp, QPointF, Qt from PySide2.QtGui import QColor, QPainter, QPalette from PySide2.QtWidgets import (QApplication, QMainWindow, QSizePolicy, QWidget) from PySide2.QtCharts import QtCharts from ui_themewidget import Ui_ThemeWidgetForm as ui from random import random, uniform class ThemeWidget(QWidget): def __init__(self, parent): QWidget.__init__(self, parent) self.charts = [] self.ui = ui() self.list_count = 3 self.value_max = 10 self.value_count = 7 self.data_table = self.generate_random_data(self.list_count, self.value_max, self.value_count) self.ui.setupUi(self) self.populate_themebox() self.populate_animationbox() self.populate_legendbox() # Area Chart chart_view = QtCharts.QChartView(self.create_areachart()) self.ui.gridLayout.addWidget(chart_view, 1, 0) self.charts.append(chart_view) # Pie Chart chart_view = QtCharts.QChartView(self.createPieChart()) chart_view.setSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored) self.ui.gridLayout.addWidget(chart_view, 1, 1) self.charts.append(chart_view) # Line Chart chart_view = QtCharts.QChartView(self.createLineChart()) self.ui.gridLayout.addWidget(chart_view, 1, 2) self.charts.append(chart_view) # Bar Chart chart_view = QtCharts.QChartView(self.createBarChart()) self.ui.gridLayout.addWidget(chart_view, 2, 0) self.charts.append(chart_view) # Spline Chart chart_view = QtCharts.QChartView(self.createSplineChart()) self.ui.gridLayout.addWidget(chart_view, 2, 1) self.charts.append(chart_view) # Scatter Chart chart_view = QtCharts.QChartView(self.create_scatterchart()) self.ui.gridLayout.addWidget(chart_view, 2, 2) self.charts.append(chart_view) # Set defaults self.ui.antialiasCheckBox.setChecked(True) # Set the colors from the light theme as default ones pal = qApp.palette() pal.setColor(QPalette.Window, QColor(0xf0f0f0)) pal.setColor(QPalette.WindowText, QColor(0x404044)) qApp.setPalette(pal) self.updateUI() def generate_random_data(self, list_count, value_max, value_count): data_table = [] for i in range(list_count): data_list = [] y_value = 0 for j in range(value_count): constant = value_max / float(value_count) y_value += uniform(0, constant) x_value = (j + random()) * constant value = QPointF(x_value, y_value) label = "Slice {}: {}".format(i, j) data_list.append((value, label)) data_table.append(data_list) return data_table def populate_themebox(self): theme = self.ui.themeComboBox qchart = QtCharts.QChart theme.addItem("Light", qchart.ChartThemeLight) theme.addItem("Blue Cerulean", qchart.ChartThemeBlueCerulean) theme.addItem("Dark", qchart.ChartThemeDark) theme.addItem("Brown Sand", qchart.ChartThemeBrownSand) theme.addItem("Blue NCS", qchart.ChartThemeBlueNcs) theme.addItem("High Contrast", qchart.ChartThemeHighContrast) theme.addItem("Blue Icy", qchart.ChartThemeBlueIcy) theme.addItem("Qt", qchart.ChartThemeQt) def populate_animationbox(self): animated = self.ui.animatedComboBox qchart = QtCharts.QChart animated.addItem("No Animations", qchart.NoAnimation) animated.addItem("GridAxis Animations", qchart.GridAxisAnimations) animated.addItem("Series Animations", qchart.SeriesAnimations) animated.addItem("All Animations", qchart.AllAnimations) def populate_legendbox(self): legend = self.ui.legendComboBox legend.addItem("No Legend ", 0) legend.addItem("Legend Top", Qt.AlignTop) legend.addItem("Legend Bottom", Qt.AlignBottom) legend.addItem("Legend Left", Qt.AlignLeft) legend.addItem("Legend Right", Qt.AlignRight) def create_areachart(self): chart = QtCharts.QChart() chart.setTitle("Area Chart") # The lower series initialized to zero values lower_series = None name = "Series " for i in range(len(self.data_table)): upper_series = QtCharts.QLineSeries(chart) for j in range(len(self.data_table[i])): data = self.data_table[i][j] if lower_series: points = lower_series.pointsVector() y_value = points[i].y() + data[0].y() upper_series.append(QPointF(j, y_value)) else: upper_series.append(QPointF(j, data[0].y())) area = QtCharts.QAreaSeries(upper_series, lower_series) area.setName("{}{}".format(name, i)) chart.addSeries(area) lower_series = upper_series chart.createDefaultAxes() chart.axisX().setRange(0, self.value_count - 1) chart.axisY().setRange(0, self.value_max) # Add space to label to add space between labels and axis chart.axisY().setLabelFormat("%.1f ") return chart def createBarChart(self): chart = QtCharts.QChart() chart.setTitle("Bar chart") series = QtCharts.QStackedBarSeries(chart) for i in range(len(self.data_table)): barset = QtCharts.QBarSet("Bar set {}".format(i)) for data in self.data_table[i]: barset.append(data[0].y()) series.append(barset) chart.addSeries(series) chart.createDefaultAxes() chart.axisY().setRange(0, self.value_max * 2) # Add space to label to add space between labels and axis chart.axisY().setLabelFormat("%.1f ") return chart def createLineChart(self): chart = QtCharts.QChart() chart.setTitle("Line chart") name = "Series " for i, lst in enumerate(self.data_table): series = QtCharts.QLineSeries(chart) for data in lst: series.append(data[0]) series.setName("{}{}".format(name, i)) chart.addSeries(series) chart.createDefaultAxes() chart.axisX().setRange(0, self.value_max) chart.axisY().setRange(0, self.value_count) # Add space to label to add space between labels and axis chart.axisY().setLabelFormat("%.1f ") return chart def createPieChart(self): chart = QtCharts.QChart() chart.setTitle("Pie chart") series = QtCharts.QPieSeries(chart) for data in self.data_table[0]: slc = series.append(data[1], data[0].y()) if data == self.data_table[0][0]: # Show the first slice exploded with label slc.setLabelVisible() slc.setExploded() slc.setExplodeDistanceFactor(0.5) series.setPieSize(0.4) chart.addSeries(series) return chart def createSplineChart(self): chart = QtCharts.QChart() chart.setTitle("Spline chart") name = "Series " for i, lst in enumerate(self.data_table): series = QtCharts.QSplineSeries(chart) for data in lst: series.append(data[0]) series.setName("{}{}".format(name, i)) chart.addSeries(series) chart.createDefaultAxes() chart.axisX().setRange(0, self.value_max) chart.axisY().setRange(0, self.value_count) # Add space to label to add space between labels and axis chart.axisY().setLabelFormat("%.1f ") return chart def create_scatterchart(self): chart = QtCharts.QChart() chart.setTitle("Scatter chart") name = "Series " for i, lst in enumerate(self.data_table): series = QtCharts.QScatterSeries(chart) for data in lst: series.append(data[0]) series.setName("{}{}".format(name, i)) chart.addSeries(series) chart.createDefaultAxes() chart.axisX().setRange(0, self.value_max) chart.axisY().setRange(0, self.value_count) # Add space to label to add space between labels and axis chart.axisY().setLabelFormat("%.1f ") return chart def updateUI(self): def set_colors(window_color, text_color): pal = self.window().palette() pal.setColor(QPalette.Window, window_color) pal.setColor(QPalette.WindowText, text_color) self.window().setPalette(pal) idx = self.ui.themeComboBox.currentIndex() theme = self.ui.themeComboBox.itemData(idx) qchart = QtCharts.QChart if len(self.charts): chart_theme = self.charts[0].chart().theme() if chart_theme != theme: for chart_view in self.charts: if theme == 0: theme_name = qchart.ChartThemeLight elif theme == 1: theme_name = qchart.ChartThemeBlueCerulean elif theme == 2: theme_name = qchart.ChartThemeDark elif theme == 3: theme_name = qchart.ChartThemeBrownSand elif theme == 4: theme_name = qchart.ChartThemeBlueNcs elif theme == 5: theme_name = qchart.ChartThemeHighContrast elif theme == 6: theme_name = qchart.ChartThemeBlueIcy elif theme == 7: theme_name = qchart.ChartThemeQt else: theme_name = qchart.ChartThemeLight chart_view.chart().setTheme(theme_name) # Set palette colors based on selected theme if theme == qchart.ChartThemeLight: set_colors(QColor(0xf0f0f0), QColor(0x404044)) elif theme == qchart.ChartThemeDark: set_colors(QColor(0x121218), QColor(0xd6d6d6)) elif theme == qchart.ChartThemeBlueCerulean: set_colors(QColor(0x40434a), QColor(0xd6d6d6)) elif theme == qchart.ChartThemeBrownSand: set_colors(QColor(0x9e8965), QColor(0x404044)) elif theme == qchart.ChartThemeBlueNcs: set_colors(QColor(0x018bba), QColor(0x404044)) elif theme == qchart.ChartThemeHighContrast: set_colors(QColor(0xffab03), QColor(0x181818)) elif theme == qchart.ChartThemeBlueIcy: set_colors(QColor(0xcee7f0), QColor(0x404044)) else: set_colors(QColor(0xf0f0f0), QColor(0x404044)) # Update antialiasing checked = self.ui.antialiasCheckBox.isChecked() for chart in self.charts: chart.setRenderHint(QPainter.Antialiasing, checked) # Update animation options idx = self.ui.animatedComboBox.currentIndex() options = self.ui.animatedComboBox.itemData(idx) if len(self.charts): chart = self.charts[0].chart() animation_options = chart.animationOptions() if animation_options != options: for chart_view in self.charts: chart_view.chart().setAnimationOptions(options) # Update legend alignment idx = self.ui.legendComboBox.currentIndex() alignment = self.ui.legendComboBox.itemData(idx) if not alignment: for chart_view in self.charts: chart_view.chart().legend().hide() else: for chart_view in self.charts: chart_view.chart().legend().setAlignment(alignment) chart_view.chart().legend().show() if __name__ == "__main__": app = QApplication(sys.argv) window = QMainWindow() widget = ThemeWidget(None) window.setCentralWidget(widget) available_geometry = app.desktop().availableGeometry(window) size = available_geometry.height() * 0.75 window.setFixedSize(size, size * 0.8) window.show() sys.exit(app.exec_())