根据一些随机的例子,我砍掉了这扇漂亮的窗户。我很遗憾使用了QDialog
而不是QMainWindow
。我喜欢QMainWindow
的外观及其特性。现在我无法转换(纯粹的无知)。代码变得相当长,所以我想我应该从QMainWindow
调用这段代码,但是当我这么做的时候,会发生一些灾难,关闭所有python。我可以把它转换成QMainWindow
还是从QMainWindow
调用它?在
import sys
from PyQt4 import QtCore, QtGui
import numpy as np
from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.backends.backend_qt4agg import NavigationToolbar2QTAgg as NavigationToolbar
import matplotlib.pyplot as plt
import matplotlib.image as mpimg
class Window(QtGui.QDialog):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
self.resize(900,600)
layout = QtGui.QHBoxLayout(self)
Right = QtGui.QVBoxLayout(self)
Left = QtGui.QVBoxLayout(self)
spacer = QtGui.QSpacerItem(20,40)
spacer2 = QtGui.QSpacerItem(10,40)
font = QtGui.QFont()
font.setFamily("Rod")
font.setPointSize(23)
font2 = QtGui.QFont()
font2.setFamily("Rod")
font2.setPointSize(18)
font3 = QtGui.QFont()
font3.setFamily("Rod")
font3.setPointSize(13)
#Plotting Methods from Matplotlib
self.figure = plt.figure()
self.canvas = FigureCanvas(self.figure)
self.canvas.setMaximumHeight(525)
self.canvas.setMaximumHeight(725)
self.toolbar = NavigationToolbar(self.canvas, self)
#Labels
self.label = QtGui.QLabel(self)
self.label.setFont(font)
self.label.setText(" Welcome to PPMS Data Analyser")
self.label.setMaximumSize(625,30)
label2 = QtGui.QLabel(self)
label2.setFont(font2)
label2.setText("Select Plot:")
x_label = QtGui.QLabel(self)
x_label.setFont(font3)
x_label.setText("x axis:")
y_label = QtGui.QLabel(self)
y_label.setFont(font3)
y_label.setText("y axis:")
#Push Buttons
fileSelect = QtGui.QPushButton('Select File')
fileSelect.setMaximumSize(70,25)
fileSelect.clicked.connect(self.plot)
goPlot = QtGui.QPushButton('Plot')
goPlot.setMaximumSize(60,20)
goPlot.clicked.connect(self.plot)
# x axis radio buttons
groupBox = QtGui.QGroupBox()
radio1 = QtGui.QRadioButton("Time")
radio2 = QtGui.QRadioButton("Delta T")
radio3 = QtGui.QRadioButton("Delta V")
radioa = QtGui.QRadioButton("Hot Side Temp")
radiob = QtGui.QRadioButton("Cold Side Temp")
radioc = QtGui.QRadioButton("System Temp")
radio2.setChecked(True)
# Vertically aligns these buttons
vbox = QtGui.QVBoxLayout()
vbox.addWidget(x_label)
vbox.addWidget(radio1)
vbox.addWidget(radio2)
vbox.addWidget(radio3)
vbox.addWidget(radioa)
vbox.addWidget(radiob)
vbox.addWidget(radioc)
vbox.addStretch(1)
groupBox.setLayout(vbox)
# y axis radio buttons
groupBox2 = QtGui.QGroupBox()
radio12 = QtGui.QRadioButton("Time")
radio22 = QtGui.QRadioButton("Delta T")
radio32 = QtGui.QRadioButton("Delta V")
radioa2 = QtGui.QRadioButton("Hot Side Temp")
radiob2 = QtGui.QRadioButton("Cold Side Temp")
radioc2 = QtGui.QRadioButton("System Temp")
radio32.setChecked(True)
# Vertically aligns these buttons
vbox2 = QtGui.QVBoxLayout()
vbox2.addWidget(y_label)
vbox2.addWidget(radio12)
vbox2.addWidget(radio22)
vbox2.addWidget(radio32)
vbox2.addWidget(radioa2)
vbox2.addWidget(radiob2)
vbox2.addWidget(radioc2)
vbox2.addStretch(1)
groupBox2.setLayout(vbox2)
#Box for 2 radio boxes
hbox0 = QtGui.QHBoxLayout()
hbox0.addWidget(groupBox)
hbox0.addWidget(groupBox2)
hbox0.addStretch(0)
Left.addWidget(self.label)
Left.addWidget(self.canvas)
Left.addWidget(self.toolbar)
Right.addItem(spacer)
Right.addWidget(fileSelect)
Right.addItem(spacer)
Right.addWidget(label2)
Right.addLayout(hbox0)
Right.addWidget(goPlot)
Right.addLayout(hbox0)
layout.addLayout(Left)
layout.addLayout(Right)
def plot(self):
ax = self.figure.add_subplot(111)
ax.hold(False)
ax.plot([1,2],[3,4])
plt.grid()
plt.title('Test Plot')
self.canvas.draw()
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
main = Window()
main.setWindowTitle('PPMS Seebeck Calculator')
main.show()
sys.exit(app.exec_())
QMainWindow
具有预设布局 [docs]。首先,您需要为QMainWindow
创建一个“central widget”
,并将您自己的布局添加到该小部件中。工作代码如下:我就是这么做的:
1)创建
^{pr2}$central_widget
:2)为了避免这个警告:
QLayout: Attempting to add QLayout "" to Window "", which already has a layout
我改变了到
并评论了第二个
Right.addLayout(hbox0)
3)
central_widget
的设置布局:self.central_widget.setLayout(layout)
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