创建第一个选项卡时不显示

如何解决创建第一个选项卡时不显示

我的 GUI 程序需要一些帮助。当我单击菜单栏中的按钮时，应该会创建一个选项卡并显示如图所示的内容。但是，每次单击该按钮时，都会创建一个新选项卡，但第一次单击该按钮时没有任何显示。内容仅在创建第二个选项卡时显示。

这是控制台给出的消息：

Traceback (most recent call last):
 File "C:\Users\ASUS\anaconda3\lib\site-packages\matplotlib\backends\backend_qt5.py",line 496,in _draw_idle
    self.draw()
  File "C:\Users\ASUS\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py",line 388,in draw
    self.renderer = self.get_renderer(cleared=True)
  File "C:\Users\ASUS\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py",line 404,in get_renderer
    self.renderer = RendererAgg(w,h,self.figure.dpi)
  File "C:\Users\ASUS\anaconda3\lib\site-packages\matplotlib\backends\backend_agg.py",line 92,in __init__
    self._renderer = _RendererAgg(int(width),int(height),dpi)
ValueError: Image size of 11184794x453 pixels is too large. It must be less than 2^16 in each direction.

内容仅在我创建第二个标签时显示：

创建第一个选项卡时不显示内容：

相关代码从这里开始

self.actionMarket.triggered.connect(lambda:self.show_result('Grid')) #to show result
self.actionFuel_Cell.triggered.connect(lambda:self.show_result('FC')) #to show result

def show_result(self,component_name):
    self.new_tab = QtWidgets.QWidget()
    self.new_tab.setobjectName(component_name)
    self.plot_widget_1 = QtWidgets.QWidget(self.new_tab)
    self.tabWidget.addTab(self.new_tab,"")
    self.tabWidget.setTabText(self.tabWidget.indexOf(self.new_tab),QtCore.QCoreApplication.translate("MainWindow",component_name))
    # self.plot_widget_1.setMinimumSize(QtCore.QSize(0,100))
    self.plot_widget_1.setMinimumSize(QtCore.QSize(16777215,500)) 
    self.plot_widget_1.setMaximumSize(QtCore.QSize(16777215,500)) 
    self.plot_widget_1.setobjectName("plot_widget_1")
    
    
    dynamic_canvas = figureCanvas(figure(figsize=(10,10)))

    self._dynamic_ax = dynamic_canvas.figure.subplots()

    x_Axis=[]    
    for i in range (1,25):
        x_Axis.append(i)

    self._dynamic_ax.bar(x_Axis,MG.get_component(component_name))
    self._dynamic_ax.set(xlabel='Time(hour)',ylabel='Power(kW)',title= "Power Schedule of " + component_name)

    self.table = QtWidgets.QTableWidget(0,2)
    self.table.horizontalHeader().setSectionResizeMode(QtWidgets.QHeaderView.Stretch)
    
    layout = QtWidgets.qgridLayout(self.plot_widget_1)
    layout.addWidget(dynamic_canvas,0)
    layout.addWidget(self.table,1)
    layout.setColumnStretch(0,2)
    layout.setColumnStretch(1,1)
    self.table.setColumnCount(1)
    self.table.setRowCount(24)
    item = QtWidgets.QTableWidgetItem()

    for i in range (24):
            self.table.setVerticalHeaderItem(i,item)
            item = QtWidgets.QTableWidgetItem()

    self.table.setHorizontalHeaderItem(0,item)
    item = QtWidgets.QTableWidgetItem()

    for i in range (24):
        self.table.setItem(i,item)
        item = QtWidgets.QTableWidgetItem()

    for i in range (24):
        item = self.table.verticalHeaderItem(i)
        item.setText(str(i+1))

    item = self.table.horizontalHeaderItem(0)
    item.setText("Generation (kW)")

    
    __sortingEnabled = self.table.isSortingEnabled()
    self.table.setSortingEnabled(False)

    for i in range(24):
        item = self.table.item(i,0)
        item.setText(str(MG.get_component(component_name)[i]))

    self.table.setSortingEnabled(__sortingEnabled)
    self.tabWidget.setCurrentIndex(self.tabWidget.count()-1) #to view the newly created tab