将QChartView插入ui [英] Insert QChartView to ui
本文介绍了将QChartView插入ui的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在尝试放置我尝试放置一个小部件，但不知道烛台的升级类名和头文件是什么.
I have tried putting a widget but have no idea what are promoted class name and header file for candlesticks.
我要这样做的原因是，我想定期更新此烛台图，并在该窗口上插入一些按钮.
The reason I want to do this is that I want to update this candlestick chart at a regular interval of time and also insert some buttons on that window.
UI
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>600</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QPushButton" name="pushButton">
<property name="geometry">
<rect>
<x>210</x>
<y>280</y>
<width>88</width>
<height>33</height>
</rect>
</property>
<property name="text">
<string>PushButton</string>
</property>
</widget>
<widget class="QPushButton" name="pushButton_2">
<property name="geometry">
<rect>
<x>340</x>
<y>80</y>
<width>88</width>
<height>33</height>
</rect>
</property>
<property name="text">
<string>Test Trade</string>
</property>
</widget>
<widget class="PlotWidget" name="widget" native="true">
<property name="geometry">
<rect>
<x>140</x>
<y>100</y>
<width>120</width>
<height>80</height>
</rect>
</property>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>25</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<customwidgets>
<customwidget>
<class>PlotWidget</class>
<extends>QWidget</extends>
<header>qtgraph</header>
<container>1</container>
</customwidget>
</customwidgets>
<resources/>
<connections/>
</ui>
推荐答案
虽然是一个有效的选项，但不必升级一个类，因此可以将其显示在基于.ui的窗口中，因为您可以使用空的QWidget(不提升它)作为容器，然后放置一个布局，并在布局中放置QChartView.
It is not necessary to promote a class, although it is a valid option, so that it can be displayed in a window generated based on a .ui since you can use empty QWidget (without promoting it) as a container, then place a layout, and within the layout the QChartView.
图像显示了一个空的QWidget，其名称为"chart_container"，将在其中放置QChartView:
The image shows an empty QWidget whose name is "chart_container" where the QChartView will be placed:
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>600</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QPushButton" name="pushButton">
<property name="geometry">
<rect>
<x>210</x>
<y>280</y>
<width>88</width>
<height>33</height>
</rect>
</property>
<property name="text">
<string>PushButton</string>
</property>
</widget>
<widget class="QPushButton" name="pushButton_2">
<property name="geometry">
<rect>
<x>340</x>
<y>80</y>
<width>88</width>
<height>33</height>
</rect>
</property>
<property name="text">
<string>Test Trade</string>
</property>
</widget>
<widget class="QWidget" name="chart_container" native="true">
<property name="geometry">
<rect>
<x>29</x>
<y>29</y>
<width>291</width>
<height>231</height>
</rect>
</property>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>24</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<resources/>
<connections/>
</ui>
然后通过通过布局将QChartView添加到容器中来实现代码:
The code is then implemented by adding the QChartView to the container through a layout:
import sys
from PyQt5 import QtCore, QtWidgets, uic, QtChart
# load both ui file
uifile_1 = "UI/main.ui"
form_1, base_1 = uic.loadUiType(uifile_1)
class Example(base_1, form_1):
def __init__(self):
super(base_1, self).__init__()
self.setupUi(self)
data = (
(1, 7380, 7520, 7380, 7510, 7324),
(2, 7520, 7580, 7410, 7440, 7372),
(3, 7440, 7650, 7310, 7520, 7434),
(4, 7450, 7640, 7450, 7550, 7480),
(5, 7510, 7590, 7460, 7490, 7502),
(6, 7500, 7590, 7480, 7560, 7512),
(7, 7560, 7830, 7540, 7800, 7584),
)
series = QtChart.QCandlestickSeries()
series.setDecreasingColor(QtCore.Qt.red)
series.setIncreasingColor(QtCore.Qt.green)
ma5 = QtChart.QLineSeries() # 5-days average data line
tm = [] # stores str type data
# in a loop, series and ma5 append corresponding data
for num, o, h, l, c, m in data:
series.append(QtChart.QCandlestickSet(o, h, l, c))
ma5.append(QtCore.QPointF(num, m))
tm.append(str(num))
chart = QtChart.QChart()
chart.addSeries(series) # candle
chart.addSeries(ma5) # ma5 line
chart.setAnimationOptions(QtChart.QChart.SeriesAnimations)
chart.createDefaultAxes()
chart.legend().hide()
chart.axisX(series).setCategories(tm)
chart.axisX(ma5).setVisible(False)
chartview = QtChart.QChartView(chart)
self.chart_container.setContentsMargins(0, 0, 0, 0)
lay = QtWidgets.QHBoxLayout(self.chart_container)
lay.setContentsMargins(0, 0, 0, 0)
lay.addWidget(chartview)
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
ex = Example()
ex.show()
sys.exit(app.exec_())
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