class MyForm(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_Form()
self.ui.setupUi(self)
self.ui.cmd_StartProxy.clicked.connect(self.StartProxy)
self.ui.cmd_StartGNURadio.clicked.connect(self.StartGNURadio)
self.ui.cmd_SaveSettings.clicked.connect(self.SaveData)
self.ui.cmd_exit.clicked.connect(self.OnQuit)
self.ui.cmd_update_orbit.clicked.connect(self.UpdateOrbit)
self.ui.link_BY2HIT.clicked.connect(self.Link_BY2HIT)
self.ui.link_HIT.clicked.connect(self.Link_HIT)
self.ui.link_Lilac.clicked.connect(self.Link_Lilac)
self.refreshtimer=QtCore.QTimer()
QtCore.QObject.connect(self.refreshtimer,QtCore.SIGNAL("timeout()"), self.OnTimer)
sys.stdout = EmittingStream(textWritten=self.normalOutputWritten)
self.refreshtimer.start( 500 )
self.HOST = 'lilacsat.hit.edu.cn'
self.PORT_C_DA = 60061
self.PORT_C_DB = 60062
self.PORT_S_D = 61261
self.Proxy_D_S=None
self.Proxy_D_S_B=None
self.Proxy_D_LA=None
self.Proxy_D_LB=None
self.Kiss_Decoder = KISS_Decoder(self.handle_D_L2RA_Kiss)
self.ProxyRunning = False
try:
dom = minidom.parse(os.path.split(os.path.realpath(__file__))[0] +"/settings.xml")
domroot = dom.documentElement
self.ui.txt_Name.setText(domroot.getElementsByTagName('nickname')[0].childNodes[0].nodeValue)
self.ui.txt_Lon.setText(domroot.getElementsByTagName('lon')[0].childNodes[0].nodeValue)
self.ui.txt_Lat.setText(domroot.getElementsByTagName('lat')[0].childNodes[0].nodeValue)
self.ui.txt_Alt.setText(domroot.getElementsByTagName('alt')[0].childNodes[0].nodeValue)
self.ui.txt_URL.setText(domroot.getElementsByTagName('host')[0].childNodes[0].nodeValue)
self.ui.txt_URL_Back.setText(domroot.getElementsByTagName('back_host')[0].childNodes[0].nodeValue)
self.ui.BackUrlEnable.setCheckState(int(domroot.getElementsByTagName('back_host_enable')[0].childNodes[0].nodeValue))
self.ui.txt_Port.setText(domroot.getElementsByTagName('port')[0].childNodes[0].nodeValue)
self.ui.txt_TLE.setText(domroot.getElementsByTagName('tle')[0].childNodes[0].nodeValue)
except:
pass
def closeEvent(self,e):
if self.Proxy_D_LA != None:
self.Proxy_D_LA.stop()
if self.Proxy_D_LB != None:
self.Proxy_D_LB.stop()
if self.Proxy_D_S != None:
self.Proxy_D_S.stop()
if self.Proxy_D_S_B != None:
self.Proxy_D_S_B.stop()
def StartProxy(self):
if self.ProxyRunning == False:
self.ProxyRunning = True
self.ui.cmd_StartProxy.setText("Stop Proxy")
self.ChannelALog = open(os.path.split(os.path.realpath(__file__))[0] + "/ChannelADownLink.log", 'a')
self.ChannelBLog = open(os.path.split(os.path.realpath(__file__))[0] + "/ChannelBDownLink.log", 'a')
self.HOST = self.ui.txt_URL.text()
self.HOST_BACK = self.ui.txt_URL_Back.text()
self.PORT_S_D = int(self.ui.txt_Port.text())
self.NickName = str(self.ui.txt_Name.text())
self.NickName += "\x00" + " "*(15-len(self.NickName))
self.Lon = float(str(self.ui.txt_Lon.text()))
self.Lat = float(str(self.ui.txt_Lat.text()))
self.Proxy_D_S = ProxyConnectInterface(self.HOST,self.PORT_S_D,None,None,False,"D_S")
self.Proxy_D_S_B = ProxyConnectInterface(self.HOST_BACK,self.PORT_S_D,None,None,False,"D_S_B")
self.Proxy_D_LA = ProxyListenInterface("0.0.0.0",self.PORT_C_DA,self.handle_D_L2RA,None,"D_L")
self.Proxy_D_LB = ProxyListenInterface("0.0.0.0",self.PORT_C_DB,self.handle_D_L2RB,None,"D_L")
self.Proxy_D_S.start()
self.Proxy_D_LA.start()
self.Proxy_D_LB.start()
if self.ui.BackUrlEnable.checkState() == 2:
self.Proxy_D_S_B.start()
else:
self.ui.cmd_StartProxy.setEnabled(False)
self.ui.cmd_StartProxy.setText("Stopping...")
self.Proxy_D_S.stop()
self.Proxy_D_LA.stop()
self.Proxy_D_LB.stop()
self.Proxy_D_S_B.stop()
time.sleep(0.2)
while(self.Proxy_D_S.isAlive() == True or self.Proxy_D_S_B.isAlive() == True or self.Proxy_D_LA.isAlive() == True or self.Proxy_D_LB.isAlive() == True):
time.sleep(0.2)
self.ProxyRunning = False
self.ui.cmd_StartProxy.setText("Start Proxy")
self.ui.cmd_StartProxy.setEnabled(True)
def StartGNURadio(self):
if os.fork() == 0:
#os.execvp("gnome-terminal",("gnome-terminal","-x","bash","-c", "/home/lilac/workspace_l1/ftp_server_simulator/Debug/ftp_server_simulator -a20 -s127.0.0.1 -fpacketlog_node4.db"))
os.execvp("gnuradio-companion", ("gnuradio-companion","gr-lilacsat/examples/Taurus-1/frontend_taurus1_rx_rtl.grc", "gr-lilacsat/examples/Taurus-1/frontend_taurus1_rx_fcdpp.grc", "gr-lilacsat/examples/Taurus-1/demod_taurus-1.grc"))
def SaveData(self):
doc = Document() #创建DOM文档对象
settings = doc.createElement('settings') #创建根元素
doc.appendChild(settings)
entry = doc.createElement("nickname")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Name.text())))
settings.appendChild(entry)
entry = doc.createElement("lon")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Lon.text())))
settings.appendChild(entry)
entry = doc.createElement("lat")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Lat.text())))
settings.appendChild(entry)
entry = doc.createElement("alt")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Alt.text())))
settings.appendChild(entry)
entry = doc.createElement("host")
entry.appendChild(doc.createTextNode(str(self.ui.txt_URL.text())))
settings.appendChild(entry)
entry = doc.createElement("back_host")
entry.appendChild(doc.createTextNode(str(self.ui.txt_URL_Back.text())))
settings.appendChild(entry)
entry = doc.createElement("back_host_enable")
entry.appendChild(doc.createTextNode(str(self.ui.BackUrlEnable.checkState())))
settings.appendChild(entry)
entry = doc.createElement("port")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Port.text())))
settings.appendChild(entry)
entry = doc.createElement("tle")
entry.appendChild(doc.createTextNode(str(self.ui.txt_TLE.text())))
settings.appendChild(entry)
########### 将DOM对象doc写入文件
f = open(os.path.split(os.path.realpath(__file__))[0] +'/settings.xml','w')
f.write(doc.toprettyxml(indent = ''))
f.close()
def UpdateOrbit(self):
try:
f=urllib2.urlopen(str(self.ui.txt_TLE.text()))
tle = f.read()
tle=tle.split("\n")
tle1 = tle[1]
tle2 = tle[2]
with open(os.path.split(os.path.realpath(__file__))[0] + "/grc_param.py", 'w') as fp:
fp.write("lat=" + str(self.ui.txt_Lat.text()) + "\n")
fp.write("lon=" + str(self.ui.txt_Lon.text()) + "\n")
fp.write("alt=" + str(self.ui.txt_Alt.text()) + "\n")
fp.write("tle_line1=\"" + tle1 + "\"\n")
fp.write("tle_line2=\"" + tle2 + "\"\n")
fp.close()
print "Orbit Data Successfully Updated!"
except Exception as msg:
print msg
def OnQuit(self):
self.close()
def Link_BY2HIT(self):
webbrowser.open("http://www.by2hit.net")
def Link_HIT(self):
webbrowser.open("http://www.hit.edu.cn")
def Link_Lilac(self):
webbrowser.open("http://lilacsat.hit.edu.cn/lilac_en/Dashboard.html")
def OnTimer(self):
if self.Proxy_D_LA != None:
if self.Proxy_D_LA.StateNow == 2:
self.ui.lbl_status_gnu_A.setText("""Receiver A: <font color="green">Connected</font>""")
else:
self.ui.lbl_status_gnu_A.setText("Receiver A: Not Connected")
else:
self.ui.lbl_status_gnu_A.setText("Receiver A: Not Connected")
if self.Proxy_D_LB != None:
if self.Proxy_D_LB.StateNow == 2:
self.ui.lbl_status_gnu_B.setText("""Receiver B: <font color="green">Connected</font>""")
else:
self.ui.lbl_status_gnu_B.setText("Receiver B: Not Connected")
else:
self.ui.lbl_status_gnu_B.setText("Receiver B: Not Connected")
if self.Proxy_D_S != None:
if self.Proxy_D_S.StateNow == 2:
self.ui.lbl_status_server.setText("""Server: <font color="green">Connected</font>""")
else:
self.ui.lbl_status_server.setText("Server: Not Connected")
else:
self.ui.lbl_status_server.setText("Server: Not Connected")
if self.Proxy_D_S_B != None:
if self.Proxy_D_S_B.StateNow == 2:
self.ui.lbl_status_server_back .setText("""BackUp Server: <font color="green">Connected</font>""")
else:
self.ui.lbl_status_server_back.setText("BackUp Server: Not Connected")
else:
self.ui.lbl_status_server_back.setText("BackUp Server: Not Connected")
try:
result = os.waitpid(-1,os.WNOHANG)
except:
pass
#下行数据，本地端到远程端处理程序
def handle_D_L2RA(self,caller,data):
self.Kiss_Decoder.AppendStream(data)
def handle_D_L2RA_Kiss(self,data):
Length_Bin=struct.pack("I",len(data)+64)
tmp_data="PaC_t" +Length_Bin+"\x01" + self.NickName + struct.pack("d",self.Lon) + struct.pack("d",self.Lat) + " "*32 +data
self.Proxy_D_S.SendData(tmp_data)
if self.ui.BackUrlEnable.checkState() == 2:
self.Proxy_D_S_B.SendData(tmp_data)
self.ChannelALog.write(str(time.strftime('%Y-%m-%d %H:%M:%S',time.gmtime())) +"\n")
self.ChannelALog.write(self.NickName.replace("\x00", "") +"\n")
self.ChannelALog.write(str(self.Lon) +"\n")
self.ChannelALog.write(str(self.Lat) +"\n")
log = " ".join(["%02X"%ord(i) for i in data]) + "\n"
self.ChannelALog.write(log)
print log
self.ChannelALog.flush()
def handle_D_L2RB(self,caller,data):
Length_Bin=struct.pack("I",len(data)+64)
tmp_data="PaC_t" +Length_Bin+"\x01" + self.NickName + struct.pack("d",self.Lon) + struct.pack("d",self.Lat) + " "*32 +data
self.Proxy_D_S.SendData(tmp_data)
if self.ui.BackUrlEnable.checkState() == 2:
self.Proxy_D_S_B.SendData(tmp_data)
self.ChannelBLog.write(str(time.strftime('%Y-%m-%d %H:%M:%S',time.gmtime())) +"\n")
self.ChannelBLog.write(self.NickName.replace("\x00", "") +"\n")
self.ChannelBLog.write(str(self.Lon) +"\n")
self.ChannelBLog.write(str(self.Lat) +"\n")
log = " ".join(["%02X"%ord(i) for i in data]) + "\n"
self.ChannelBLog.write(log)
print log
self.ChannelBLog.flush()
def normalOutputWritten(self, text):
"""Append text to the QTextEdit."""
str_buf = self.ui.txt_log.toPlainText()
str_buf = str_buf + text
length = str_buf.count()
maxLength = 2000
if(length > maxLength):
str_buf.remove(0, length - maxLength);
self.ui.txt_log.setText(str_buf);
textCursor = self.ui.txt_log.textCursor();
self.ui.txt_log.setText(str_buf);
textCursor.setPosition(str_buf.count());
self.ui.txt_log.setTextCursor(textCursor);
class MyForm(QtGui.QMainWindow):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.ui = Ui_Form()
self.ui.setupUi(self)
self.ui.cmd_StartProxy.clicked.connect(self.StartProxy)
self.ui.cmd_StartGNURadio.clicked.connect(self.StartGNURadio)
self.ui.cmd_SaveSettings.clicked.connect(self.SaveData)
self.ui.cmd_exit.clicked.connect(self.OnQuit)
self.ui.cmd_update_orbit.clicked.connect(self.UpdateOrbit)
self.ui.link_BY2HIT.clicked.connect(self.Link_BY2HIT)
self.ui.link_HIT.clicked.connect(self.Link_HIT)
self.ui.link_Lilac.clicked.connect(self.Link_Lilac)
self.refreshtimer=QtCore.QTimer()
QtCore.QObject.connect(self.refreshtimer,QtCore.SIGNAL("timeout()"), self.OnTimer)
sys.stdout = EmittingStream(textWritten=self.normalOutputWritten)
self.refreshtimer.start( 500 )
self.HOST = 'lilacsat.hit.edu.cn'
self.PORT_C_DA = 60061
self.PORT_C_DB = 60062
self.PORT_S_D = 61161
self.Proxy_D_S=None
self.Proxy_D_S_B=None
self.Proxy_D_LA=None
self.Proxy_D_LB=None
self.ProxyRunning = False
try:
dom = minidom.parse(os.path.split(os.path.realpath(__file__))[0] +"/settings.xml")
domroot = dom.documentElement
self.ui.txt_Name.setText(domroot.getElementsByTagName('nickname')[0].childNodes[0].nodeValue)
self.ui.txt_Lon.setText(domroot.getElementsByTagName('lon')[0].childNodes[0].nodeValue)
self.ui.txt_Lat.setText(domroot.getElementsByTagName('lat')[0].childNodes[0].nodeValue)
self.ui.txt_Alt.setText(domroot.getElementsByTagName('alt')[0].childNodes[0].nodeValue)
self.ui.txt_URL.setText(domroot.getElementsByTagName('host')[0].childNodes[0].nodeValue)
self.ui.txt_URL_Back.setText(domroot.getElementsByTagName('back_host')[0].childNodes[0].nodeValue)
self.ui.BackUrlEnable.setCheckState(int(domroot.getElementsByTagName('back_host_enable')[0].childNodes[0].nodeValue))
self.ui.txt_Port.setText(domroot.getElementsByTagName('port')[0].childNodes[0].nodeValue)
self.ui.txt_TLE.setText(domroot.getElementsByTagName('tle')[0].childNodes[0].nodeValue)
except:
pass
def closeEvent(self,e):
if self.Proxy_D_LA != None:
self.Proxy_D_LA.stop()
if self.Proxy_D_LB != None:
self.Proxy_D_LB.stop()
if self.Proxy_D_S != None:
self.Proxy_D_S.stop()
if self.Proxy_D_S_B != None:
self.Proxy_D_S_B.stop()
def StartProxy(self):
if self.ProxyRunning == False:
self.ProxyRunning = True
self.ui.cmd_StartProxy.setText("Stop Proxy")
self.ChannelALog = open(os.path.split(os.path.realpath(__file__))[0] + "/ChannelADownLink.log", 'a')
self.ChannelBLog = open(os.path.split(os.path.realpath(__file__))[0] + "/ChannelBDownLink.log", 'a')
self.HOST = self.ui.txt_URL.text()
self.HOST_BACK = self.ui.txt_URL_Back.text()
self.PORT_S_D = int(self.ui.txt_Port.text())
self.NickName = str(self.ui.txt_Name.text())
self.NickName += "\x00" + " "*(15-len(self.NickName))
self.Lon = float(str(self.ui.txt_Lon.text()))
self.Lat = float(str(self.ui.txt_Lat.text()))
self.Proxy_D_S = ProxyConnectInterface(self.HOST,self.PORT_S_D,None,None,False,"D_S")
self.Proxy_D_S_B = ProxyConnectInterface(self.HOST_BACK,self.PORT_S_D,None,None,False,"D_S_B")
self.Proxy_D_LA = ProxyListenInterface("0.0.0.0",self.PORT_C_DA,self.handle_D_L2RA,None,"D_L")
self.Proxy_D_LB = ProxyListenInterface("0.0.0.0",self.PORT_C_DB,self.handle_D_L2RB,None,"D_L")
self.Proxy_D_S.start()
self.Proxy_D_LA.start()
self.Proxy_D_LB.start()
if self.ui.BackUrlEnable.checkState() == 2:
self.Proxy_D_S_B.start()
else:
self.ui.cmd_StartProxy.setEnabled(False)
self.ui.cmd_StartProxy.setText("Stopping...")
self.Proxy_D_S.stop()
self.Proxy_D_LA.stop()
self.Proxy_D_LB.stop()
self.Proxy_D_S_B.stop()
time.sleep(0.2)
while(self.Proxy_D_S.isAlive() == True or self.Proxy_D_S_B.isAlive() == True or self.Proxy_D_LA.isAlive() == True or self.Proxy_D_LB.isAlive() == True):
time.sleep(0.2)
self.ProxyRunning = False
self.ui.cmd_StartProxy.setText("Start Proxy")
self.ui.cmd_StartProxy.setEnabled(True)
def StartGNURadio(self):
if os.fork() == 0:
os.execvp("gnome-terminal",("gnome-terminal","-x","bash","-c", "/home/lilac/workspace/ftp_server_simulator/Debug/ftp_server_simulator -a20 -s127.0.0.1 -fpacketlog_node4.db"))
def SaveData(self):
doc = Document() #创建DOM文档对象
settings = doc.createElement('settings') #创建根元素
doc.appendChild(settings)
entry = doc.createElement("nickname")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Name.text())))
settings.appendChild(entry)
entry = doc.createElement("lon")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Lon.text())))
settings.appendChild(entry)
entry = doc.createElement("lat")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Lat.text())))
settings.appendChild(entry)
entry = doc.createElement("alt")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Alt.text())))
settings.appendChild(entry)
entry = doc.createElement("host")
entry.appendChild(doc.createTextNode(str(self.ui.txt_URL.text())))
settings.appendChild(entry)
entry = doc.createElement("back_host")
entry.appendChild(doc.createTextNode(str(self.ui.txt_URL_Back.text())))
settings.appendChild(entry)
entry = doc.createElement("back_host_enable")
entry.appendChild(doc.createTextNode(str(self.ui.BackUrlEnable.checkState())))
settings.appendChild(entry)
entry = doc.createElement("port")
entry.appendChild(doc.createTextNode(str(self.ui.txt_Port.text())))
settings.appendChild(entry)
entry = doc.createElement("tle")
entry.appendChild(doc.createTextNode(str(self.ui.txt_TLE.text())))
settings.appendChild(entry)
########### 将DOM对象doc写入文件
f = open(os.path.split(os.path.realpath(__file__))[0] +'/settings.xml','w')
f.write(doc.toprettyxml(indent = ''))
f.close()
def UpdateOrbit(self):
try:
f=urllib2.urlopen(str(self.ui.txt_TLE.text()))
tle = f.read()
tle=tle.split("\n")
tle1 = tle[1]
tle2 = tle[2]
with open(os.path.split(os.path.realpath(__file__))[0] + "/grc_param.py", 'w') as fp:
fp.write("lat=" + str(self.ui.txt_Lat.text()) + "\n")
fp.write("lon=" + str(self.ui.txt_Lon.text()) + "\n")
fp.write("alt=" + str(self.ui.txt_Alt.text()) + "\n")
fp.write("tle_line1=\"" + tle1 + "\"\n")
fp.write("tle_line2=\"" + tle2 + "\"\n")
fp.close()
print "Orbit Data Successfully Updated!"
except Exception as msg:
print msg
def OnQuit(self):
self.close()
def Link_BY2HIT(self):
webbrowser.open("http://www.by2hit.net")
def Link_HIT(self):
webbrowser.open("http://www.hit.edu.cn")
def Link_Lilac(self):
webbrowser.open("http://lilacsat.hit.edu.cn")
def OnTimer(self):
if self.Proxy_D_LA != None:
if self.Proxy_D_LA.StateNow == 2:
self.ui.lbl_status_gnu_A.setText("""Receiver A: <font color="green">Connected</font>""")
else:
self.ui.lbl_status_gnu_A.setText("Receiver A: Not Connected")
else:
self.ui.lbl_status_gnu_A.setText("Receiver A: Not Connected")
if self.Proxy_D_LB != None:
if self.Proxy_D_LB.StateNow == 2:
self.ui.lbl_status_gnu_B.setText("""Receiver B: <font color="green">Connected</font>""")
else:
self.ui.lbl_status_gnu_B.setText("Receiver B: Not Connected")
else:
self.ui.lbl_status_gnu_B.setText("Receiver B: Not Connected")
if self.Proxy_D_S != None:
if self.Proxy_D_S.StateNow == 2:
self.ui.lbl_status_server.setText("""Server: <font color="green">Connected</font>""")
else:
self.ui.lbl_status_server.setText("Server: Not Connected")
else:
self.ui.lbl_status_server.setText("Server: Not Connected")
if self.Proxy_D_S_B != None:
if self.Proxy_D_S_B.StateNow == 2:
self.ui.lbl_status_server_back .setText("""BackUp Server: <font color="green">Connected</font>""")
else:
self.ui.lbl_status_server_back.setText("BackUp Server: Not Connected")
else:
self.ui.lbl_status_server_back.setText("BackUp Server: Not Connected")
try:
result = os.waitpid(-1,os.WNOHANG)
except:
pass
#下行数据，本地端到远程端处理程序
def handle_D_L2RA(self,caller,data):
Length_Bin=struct.pack("I",len(data)+64)
tmp_data="PaC_t" +Length_Bin+"\x01" + self.NickName + struct.pack("d",self.Lon) + struct.pack("d",self.Lat) + " "*32 +data
self.Proxy_D_S.SendData(tmp_data)
if self.ui.BackUrlEnable.checkState() == 2:
self.Proxy_D_S_B.SendData(tmp_data)
self.ChannelALog.write(str(time.strftime('%Y-%m-%d %H:%M:%S',time.gmtime())) +"\n")
self.ChannelALog.write(self.NickName.replace("\x00", "") +"\n")
self.ChannelALog.write(str(self.Lon) +"\n")
self.ChannelALog.write(str(self.Lat) +"\n")
log = " ".join(["%02X"%ord(i) for i in data]) + "\n"
self.ChannelALog.write(log)
print log
self.ChannelALog.flush()
def handle_D_L2RB(self,caller,data):
Length_Bin=struct.pack("I",len(data)+64)
tmp_data="PaC_t" +Length_Bin+"\x01" + self.NickName + struct.pack("d",self.Lon) + struct.pack("d",self.Lat) + " "*32 +data
self.Proxy_D_S.SendData(tmp_data)
if self.ui.BackUrlEnable.checkState() == 2:
self.Proxy_D_S_B.SendData(tmp_data)
self.ChannelBLog.write(str(time.strftime('%Y-%m-%d %H:%M:%S',time.gmtime())) +"\n")
self.ChannelBLog.write(self.NickName.replace("\x00", "") +"\n")
self.ChannelBLog.write(str(self.Lon) +"\n")
self.ChannelBLog.write(str(self.Lat) +"\n")
log = " ".join(["%02X"%ord(i) for i in data]) + "\n"
self.ChannelALog.write(log)
print log
self.ChannelBLog.flush()
def normalOutputWritten(self, text):
"""Append text to the QTextEdit."""
str_buf = self.ui.txt_log.toPlainText()
str_buf = str_buf + text
length = str_buf.count()
maxLength = 2000
if(length > maxLength):
str_buf.remove(0, length - maxLength);
self.ui.txt_log.setText(str_buf);
textCursor = self.ui.txt_log.textCursor();
self.ui.txt_log.setText(str_buf);
textCursor.setPosition(str_buf.count());
self.ui.txt_log.setTextCursor(textCursor);