initial

.gitmodules

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+[submodule "gex-client-py"]
+	path = gex-client-py
+	url = https://git.ondrovo.com/gex/gex-client-py.git

gex-client-py

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+Subproject commit 3a5ac05d9db965f86188929f8f56a68ee994827d

main.py

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+from PyQt4 import QtCore, QtGui, Qt
+from PyQt4.QtGui import QApplication, QMainWindow
+import sys, math
+
+class MyMainScreen(QMainWindow):
+    def __init__(self, parent=None):
+        QtGui.QMainWindow.__init__(self, parent)
+
+        self.timer  = QtCore.QTimer(self)
+        self.timer.setInterval(100)
+        self.timer.timeout.connect(self.blink)
+        self.timer.start()
+
+        self.resize(500, 500)
+        self.centralwidget = QtGui.QWidget(self)
+        self.horizontalLayout = QtGui.QHBoxLayout(self.centralwidget)
+
+        self.setCentralWidget(self.centralwidget)
+        self.menubar = QtGui.QMenuBar(self)
+        self.menubar.setGeometry(QtCore.QRect(0, 0, 500, 22))
+
+        self.setMenuBar(self.menubar)
+
+        self.statusbar = QtGui.QStatusBar(self)
+        self.setStatusBar(self.statusbar)
+        QtCore.QMetaObject.connectSlotsByName(self)
+
+        self.n = 0
+
+    def blink(self):
+        self.n += 0.1
+        self.n = self.n % 20
+        self.repaint()
+
+    def paintEvent(self, event):
+        painter = QtGui.QPainter(self)
+        painter.setRenderHint(QtGui.QPainter.Antialiasing)
+        painter.setRenderHint(QtGui.QPainter.HighQualityAntialiasing)
+        painter.setPen(QtGui.QPen(QtCore.Qt.red, 2))
+
+        step = 2
+        amp = (self.height()/2)*0.8
+        for i in range(0, self.width(), step):
+            y0 = round(self.height()/2 + amp * math.sin(2*math.pi*self.n*(i/180)))
+            y1 = round(self.height()/2 + amp * math.sin(2*math.pi*self.n*((i+step)/180)))
+            painter.drawLine(QtCore.QLine(i, y0, i+step, y1))
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+    mainscreen = MyMainScreen()
+    mainscreen.show()
+    app.exec_()