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fixed mem leak with adding external qt event processing

This commit is contained in:
Stefan Kögl 2014-03-26 14:25:24 +01:00
parent 7de1019e76
commit d2b6abbbb5
1 changed files with 11 additions and 20 deletions
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29
ekgplotter/ekgplotter/main.py
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@ -44,7 +44,7 @@ from collections import deque
from PyQt4.QtCore import QBuffer, QByteArray, QIODevice from PyQt4.QtCore import QBuffer, QByteArray, QIODevice
from PyQt4 import QtGui from PyQt4 import QtGui, QtCore
import pyqtgraph as pg import pyqtgraph as pg
@ -58,7 +58,6 @@ try:
except ImportError: except ImportError:
from chaosc.osc_lib import * from chaosc.osc_lib import *
QtGui.QApplication.setGraphicsSystem('opengl')
try: try:
@ -67,7 +66,6 @@ except ImportError as e:
print(e) print(e)
from chaosc.osc_lib import decode_osc from chaosc.osc_lib import decode_osc
QAPP = QtGui.QApplication([])
class PlotWindow(PlotWidget): class PlotWindow(PlotWidget):
@ -281,7 +279,7 @@ class EkgPlot(object):
def update(self, osc_address, value): def update(self, osc_address, value):
print "update", osc_address #print "update", osc_address
res = self.ekg_regex.match(osc_address) res = self.ekg_regex.match(osc_address)
if res: if res:
#print("matched data") #print("matched data")
@ -305,30 +303,21 @@ class EkgPlot(object):
if res: if res:
actor_name = res.group(1) actor_name = res.group(1)
actor_obj = self.actors[actor_name] actor_obj = self.actors[actor_name]
#print("matched ctl", value, actor_name, actor_obj.active)
if value == 1 and not actor_obj.active: if value == 1 and not actor_obj.active:
print "actor on", actor_name #print "actor on", actor_name
self.plot.addItem(actor_obj)
actor_obj.active = True
self.active_actors.append(actor_obj)
elif value == 0 and not actor_obj.active:
print "actor off", actor_name
self.plot.removeItem(actor_obj)
actor_obj.active = True
if actor_obj not in self.active_actors:
self.plot.addItem(actor_obj.plotItem) self.plot.addItem(actor_obj.plotItem)
self.plot.addItem(actor_obj.plotPoint) self.plot.addItem(actor_obj.plotPoint)
actor_obj.active = True
if not actor_obj in self.active_actors:
self.active_actors.append(actor_obj) self.active_actors.append(actor_obj)
assert actor_obj in self.active_actors
elif value == 0 and actor_obj.active: elif value == 0 and actor_obj.active:
#print("actor off", actor_name, actor_obj, self.active_actors) #print "actor off", actor_name
actor_obj.active = False actor_obj.active = False
self.plot.removeItem(actor_obj.plotItem) self.plot.removeItem(actor_obj.plotItem)
self.plot.removeItem(actor_obj.plotPoint) self.plot.removeItem(actor_obj.plotPoint)
try: try:
self.active_actors.remove(actor_obj) self.active_actors.remove(actor_obj)
except ValueError as e: except ValueError as e:
#print("ctl", e)
pass pass
assert actor_obj not in self.active_actors assert actor_obj not in self.active_actors
@ -365,13 +354,17 @@ class MyHandler(BaseHTTPRequestHandler):
actor_names = ["bjoern", "merle", "uwe"] actor_names = ["bjoern", "merle", "uwe"]
num_data = 100 num_data = 100
colors = ["r", "g", "b"] colors = ["r", "g", "b"]
qtapp = QtGui.QApplication([])
plotter = EkgPlot(actor_names, num_data, colors) plotter = EkgPlot(actor_names, num_data, colors)
self.wfile.write("Content-Type: multipart/x-mixed-replace; boundary=--aaboundary\r\n\r\n") self.wfile.write("Content-Type: multipart/x-mixed-replace; boundary=--aaboundary\r\n\r\n")
#lastTime = time.time() #lastTime = time.time()
#fps = None #fps = None
event_loop = QtCore.QEventLoop()
while 1: while 1:
event_loop.processEvents()
qtapp.sendPostedEvents(None, 0)
while 1: while 1:
try: try:
osc_address, args = queue.get_nowait() osc_address, args = queue.get_nowait()
@ -439,8 +432,6 @@ def main():
add_subscriber_group(arg_parser, "ekgplotter") add_subscriber_group(arg_parser, "ekgplotter")
args = finalize_arg_parser(arg_parser) args = finalize_arg_parser(arg_parser)
qtapp = QtGui.QApplication([])
http_host, http_port = resolve_host(args.http_host, args.http_port, args.address_family) http_host, http_port = resolve_host(args.http_host, args.http_port, args.address_family)
server = JustAHTTPServer((http_host, http_port), MyHandler) server = JustAHTTPServer((http_host, http_port), MyHandler)