363 lines
12 KiB
Python
363 lines
12 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2019/10/2
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@author: Irony
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@site: https://pyqt5.com , https://github.com/892768447
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@email: 892768447@qq.com
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@file: ChartThemes
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@description: 图表主题动画等
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"""
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#############################################################################
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##
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## Copyright (C) 2013 Riverbank Computing Limited
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## Copyright (C) 2012 Digia Plc
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## All rights reserved.
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##
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## This file is part of the PyQtChart examples.
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##
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## $QT_BEGIN_LICENSE$
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## Licensees holding valid Qt Commercial licenses may use this file in
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## accordance with the Qt Commercial License Agreement provided with the
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## Software or, alternatively, in accordance with the terms contained in
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## a written agreement between you and Digia.
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## $QT_END_LICENSE$
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##
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#############################################################################
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import random
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from PyQt5.QtChart import (QAreaSeries, QBarSet, QChart, QChartView,
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QLineSeries, QPieSeries, QScatterSeries, QSplineSeries,
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QStackedBarSeries)
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from PyQt5.QtCore import pyqtSlot, QPointF, Qt
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from PyQt5.QtGui import QColor, QPainter, QPalette
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from PyQt5.QtWidgets import (QCheckBox, QComboBox, QGridLayout, QHBoxLayout,
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QLabel, QSizePolicy, QWidget)
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class ThemeWidget(QWidget):
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def __init__(self, parent=None):
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super(ThemeWidget, self).__init__(parent)
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self.m_charts = []
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self.m_listCount = 3
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self.m_valueMax = 10
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self.m_valueCount = 7
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self.m_dataTable = self.generateRandomData(self.m_listCount,
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self.m_valueMax, self.m_valueCount)
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self.m_themeComboBox = self.createThemeBox()
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self.m_antialiasCheckBox = QCheckBox("Anti-aliasing")
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self.m_animatedComboBox = self.createAnimationBox()
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self.m_legendComboBox = self.createLegendBox()
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self.connectSignals()
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# Create the layout.
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baseLayout = QGridLayout()
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settingsLayout = QHBoxLayout()
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settingsLayout.addWidget(QLabel("Theme:"))
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settingsLayout.addWidget(self.m_themeComboBox)
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settingsLayout.addWidget(QLabel("Animation:"))
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settingsLayout.addWidget(self.m_animatedComboBox)
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settingsLayout.addWidget(QLabel("Legend:"))
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settingsLayout.addWidget(self.m_legendComboBox)
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settingsLayout.addWidget(self.m_antialiasCheckBox)
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settingsLayout.addStretch()
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baseLayout.addLayout(settingsLayout, 0, 0, 1, 3)
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# Create the charts.
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chartView = QChartView(self.createAreaChart())
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baseLayout.addWidget(chartView, 1, 0)
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self.m_charts.append(chartView)
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chartView = QChartView(self.createBarChart(self.m_valueCount))
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baseLayout.addWidget(chartView, 1, 1)
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self.m_charts.append(chartView)
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chartView = QChartView(self.createLineChart())
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baseLayout.addWidget(chartView, 1, 2)
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self.m_charts.append(chartView)
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chartView = QChartView(self.createPieChart())
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# Funny things happen if the pie slice labels no not fit the screen...
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chartView.setSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored)
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baseLayout.addWidget(chartView, 2, 0)
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self.m_charts.append(chartView)
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chartView = QChartView(self.createSplineChart())
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baseLayout.addWidget(chartView, 2, 1)
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self.m_charts.append(chartView)
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chartView = QChartView(self.createScatterChart())
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baseLayout.addWidget(chartView, 2, 2)
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self.m_charts.append(chartView)
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self.setLayout(baseLayout)
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# Set the defaults.
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self.m_antialiasCheckBox.setChecked(True)
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self.updateUI()
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def connectSignals(self):
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self.m_themeComboBox.currentIndexChanged.connect(self.updateUI)
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self.m_antialiasCheckBox.toggled.connect(self.updateUI)
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self.m_animatedComboBox.currentIndexChanged.connect(self.updateUI)
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self.m_legendComboBox.currentIndexChanged.connect(self.updateUI)
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def generateRandomData(self, listCount, valueMax, valueCount):
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random.seed()
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dataTable = []
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for i in range(listCount):
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dataList = []
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yValue = 0.0
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f_valueCount = float(valueCount)
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for j in range(valueCount):
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yValue += random.uniform(0, valueMax) / f_valueCount
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value = QPointF(
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j + random.random() * self.m_valueMax / f_valueCount,
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yValue)
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label = "Slice " + str(i) + ":" + str(j)
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dataList.append((value, label))
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dataTable.append(dataList)
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return dataTable
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def createThemeBox(self):
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themeComboBox = QComboBox()
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themeComboBox.addItem("Light", QChart.ChartThemeLight)
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themeComboBox.addItem("Blue Cerulean", QChart.ChartThemeBlueCerulean)
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themeComboBox.addItem("Dark", QChart.ChartThemeDark)
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themeComboBox.addItem("Brown Sand", QChart.ChartThemeBrownSand)
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themeComboBox.addItem("Blue NCS", QChart.ChartThemeBlueNcs)
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themeComboBox.addItem("High Contrast", QChart.ChartThemeHighContrast)
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themeComboBox.addItem("Blue Icy", QChart.ChartThemeBlueIcy)
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return themeComboBox
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def createAnimationBox(self):
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animationComboBox = QComboBox()
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animationComboBox.addItem("No Animations", QChart.NoAnimation)
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animationComboBox.addItem("GridAxis Animations", QChart.GridAxisAnimations)
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animationComboBox.addItem("Series Animations", QChart.SeriesAnimations)
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animationComboBox.addItem("All Animations", QChart.AllAnimations)
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return animationComboBox
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def createLegendBox(self):
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legendComboBox = QComboBox()
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legendComboBox.addItem("No Legend ", 0)
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legendComboBox.addItem("Legend Top", Qt.AlignTop)
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legendComboBox.addItem("Legend Bottom", Qt.AlignBottom)
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legendComboBox.addItem("Legend Left", Qt.AlignLeft)
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legendComboBox.addItem("Legend Right", Qt.AlignRight)
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return legendComboBox
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def createAreaChart(self):
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chart = QChart()
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chart.setTitle("Area chart")
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# The lower series is initialized to zero values.
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lowerSeries = None
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y_points = []
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for i, data_list in enumerate(self.m_dataTable):
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upperSeries = QLineSeries(chart)
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for j, (value, _) in enumerate(data_list):
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y = value.y()
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if lowerSeries is None:
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upperSeries.append(QPointF(j, y))
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y_points.append(y)
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else:
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new_y = y_points[i] + y
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upperSeries.append(QPointF(j, new_y))
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y_points[j] += new_y
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area = QAreaSeries(upperSeries, lowerSeries)
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area.setName("Series " + str(i))
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chart.addSeries(area)
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lowerSeries = upperSeries
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chart.createDefaultAxes()
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return chart
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def createBarChart(self, valueCount):
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chart = QChart()
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chart.setTitle("Bar chart")
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series = QStackedBarSeries(chart)
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for i, data_list in enumerate(self.m_dataTable):
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set = QBarSet("Bar set " + str(i))
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for value, _ in data_list:
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set << value.y()
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series.append(set)
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chart.addSeries(series)
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chart.createDefaultAxes()
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return chart
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def createLineChart(self):
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chart = QChart()
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chart.setTitle("Line chart")
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for i, data_list in enumerate(self.m_dataTable):
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series = QLineSeries(chart)
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for value, _ in data_list:
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series.append(value)
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series.setName("Series " + str(i))
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chart.addSeries(series)
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chart.createDefaultAxes()
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return chart
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def createPieChart(self):
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chart = QChart()
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chart.setTitle("Pie chart")
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pieSize = 1.0 / len(self.m_dataTable)
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for i, data_list in enumerate(self.m_dataTable):
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series = QPieSeries(chart)
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for value, label in data_list:
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slice = series.append(label, value.y())
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if len(series) == 1:
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slice.setLabelVisible()
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slice.setExploded()
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hPos = (pieSize / 2) + (i / float(len(self.m_dataTable)))
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series.setPieSize(pieSize)
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series.setHorizontalPosition(hPos)
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series.setVerticalPosition(0.5)
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chart.addSeries(series)
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return chart
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def createSplineChart(self):
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chart = QChart()
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chart.setTitle("Spline chart")
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for i, data_list in enumerate(self.m_dataTable):
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series = QSplineSeries(chart)
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for value, _ in data_list:
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series.append(value)
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series.setName("Series " + str(i))
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chart.addSeries(series)
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chart.createDefaultAxes()
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return chart
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def createScatterChart(self):
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chart = QChart()
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chart.setTitle("Scatter chart")
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for i, data_list in enumerate(self.m_dataTable):
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series = QScatterSeries(chart)
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for value, _ in data_list:
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series.append(value)
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series.setName("Series " + str(i))
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chart.addSeries(series)
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chart.createDefaultAxes()
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return chart
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@pyqtSlot()
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def updateUI(self):
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theme = self.m_themeComboBox.itemData(
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self.m_themeComboBox.currentIndex())
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if self.m_charts[0].chart().theme() != theme:
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for chartView in self.m_charts:
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chartView.chart().setTheme(theme)
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pal = self.window().palette()
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if theme == QChart.ChartThemeLight:
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pal.setColor(QPalette.Window, QColor(0xf0f0f0))
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pal.setColor(QPalette.WindowText, QColor(0x404044))
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elif theme == QChart.ChartThemeDark:
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pal.setColor(QPalette.Window, QColor(0x121218))
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pal.setColor(QPalette.WindowText, QColor(0xd6d6d6))
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elif theme == QChart.ChartThemeBlueCerulean:
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pal.setColor(QPalette.Window, QColor(0x40434a))
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pal.setColor(QPalette.WindowText, QColor(0xd6d6d6))
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elif theme == QChart.ChartThemeBrownSand:
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pal.setColor(QPalette.Window, QColor(0x9e8965))
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pal.setColor(QPalette.WindowText, QColor(0x404044))
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elif theme == QChart.ChartThemeBlueNcs:
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pal.setColor(QPalette.Window, QColor(0x018bba))
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pal.setColor(QPalette.WindowText, QColor(0x404044))
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elif theme == QChart.ChartThemeHighContrast:
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pal.setColor(QPalette.Window, QColor(0xffab03))
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pal.setColor(QPalette.WindowText, QColor(0x181818))
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elif theme == QChart.ChartThemeBlueIcy:
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pal.setColor(QPalette.Window, QColor(0xcee7f0))
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pal.setColor(QPalette.WindowText, QColor(0x404044))
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else:
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pal.setColor(QPalette.Window, QColor(0xf0f0f0))
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pal.setColor(QPalette.WindowText, QColor(0x404044))
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self.window().setPalette(pal)
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checked = self.m_antialiasCheckBox.isChecked()
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for chartView in self.m_charts:
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chartView.setRenderHint(QPainter.Antialiasing, checked)
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options = QChart.AnimationOptions(
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self.m_animatedComboBox.itemData(
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self.m_animatedComboBox.currentIndex()))
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if self.m_charts[0].chart().animationOptions() != options:
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for chartView in self.m_charts:
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chartView.chart().setAnimationOptions(options)
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alignment = self.m_legendComboBox.itemData(
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self.m_legendComboBox.currentIndex())
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for chartView in self.m_charts:
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legend = chartView.chart().legend()
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if alignment == 0:
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legend.hide()
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else:
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legend.setAlignment(Qt.Alignment(alignment))
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legend.show()
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if __name__ == '__main__':
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import sys
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from PyQt5.QtWidgets import QApplication, QMainWindow
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app = QApplication(sys.argv)
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window = QMainWindow()
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widget = ThemeWidget()
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window.setCentralWidget(widget)
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window.resize(900, 600)
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window.show()
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sys.exit(app.exec_())
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