gui testing

pyqt5_window_test.py

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+import sys
+
+from PyQt5.QtWidgets import QApplication, QMainWindow, QMenu, QVBoxLayout, QSizePolicy, QMessageBox, QWidget, QPushButton
+from PyQt5.QtGui import QIcon
+from PyQt5.QtCore import pyqtSlot
+
+
+from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
+from matplotlib.figure import Figure
+import matplotlib.pyplot as plt
+
+import random
+
+class App(QMainWindow):
+
+    def __init__(self):
+        super().__init__()
+        self.left = 10
+        self.top = 10
+        self.title = 'PyQt5 matplotlib example - pythonspot.com'
+        self.width = 640
+        self.height = 400
+        self.initUI()
+
+    def initUI(self):
+        self.setWindowTitle(self.title)
+        self.setGeometry(self.left, self.top, self.width, self.height)
+
+        m = PlotCanvas(self, width=5, height=4)
+        m.move(0,0)
+
+        button = QPushButton('PyQt5 button', self)
+        button.setToolTip('This s an example button')
+        button.move(500,0)
+        button.resize(140,100)
+        button.clicked.connect(m.plot)
+        self.show()
+
+
+class PlotCanvas(FigureCanvas):
+
+    def __init__(self, parent=None, width=5, height=4, dpi=100):
+        fig = Figure(figsize=(width, height), dpi=dpi)
+        self.axes = fig.add_subplot(111)
+
+        FigureCanvas.__init__(self, fig)
+        self.setParent(parent)
+
+        FigureCanvas.setSizePolicy(self,
+                QSizePolicy.Expanding,
+                QSizePolicy.Expanding)
+        FigureCanvas.updateGeometry(self)
+        self.plot()
+
+    @pyqtSlot()
+    def plot(self):
+        data = [random.normalvariate(0,1) for _ in range(200)]
+        ax = self.axes
+        ax.clear()
+        ax.plot(data, 'r-')
+        ax.set_title('PyQt Matplotlib Example')
+        self.draw()
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    ex = App()
+    sys.exit(app.exec_())